This document discusses monoclonal antibodies, including their preparation and applications. It begins with an introduction to antibodies and defines monoclonal antibodies as artificial antibodies produced from a single clone. The document then summarizes the key steps in producing monoclonal antibodies, which involves immunizing an animal, fusing B lymphocytes with myeloma cells to create immortal hybridomas, selecting antibody-producing hybridomas, culturing the cells, and extracting and purifying the monoclonal antibodies. The applications section notes that monoclonal antibodies are used for disease diagnosis, passive immunization, detecting and purifying biomolecules, and some have been authorized to treat COVID-19.
- Monoclonal antibodies are identical antibodies produced by a single clone of B cells or hybridoma. They are produced by fusing B cells from an immunized animal with myeloma cells.
- The hybridoma technique involves immunizing an animal, isolating spleen B cells, fusing them with myeloma cells using polyethylene glycol, and screening clones to identify those that produce the desired antibody.
- Hybridomas are immortal cell lines that can produce large quantities of identical monoclonal antibodies directed against a specific antigen or epitope. This technique allows mass production of antibodies for research, diagnostic, and therapeutic uses.
monoclonal antibodies are prepared in laboratories through hybridoma technique, which have their own significance in treating and diagnosing diseases like cancer detection and treatment, pregnancy test, locating blood clots, screening blood for HIU and diagnosing of various other diseases.
This document discusses therapeutic agents derived from non-recombinant organisms. It notes that nature provides a diverse source of potential therapeutic agents from plants, animals, marine organisms and microbes. Specifically, it outlines that microbes have potential to produce drugs for diseases like cancer, anemia, and diabetes. The document then categorizes different types of therapeutic agents including enzymes, antimicrobial peptides, proteins, interferons and immunosuppressors. It provides examples of enzyme therapeutic uses such as oncolytics, anticoagulants, thrombolytics and metabolic deficiency replacements. The document concludes that organisms can be used to treat diseases like cancer, infections, and genetic disorders and that delivery strategies of therapeutic agents can be improved.
History of immunology grew out of the observation that individuals who have recovered from certain infectious diseases were thereafter protected from the disease.
SYNTHETIC PEPTIDE VACCINES AND RECOMBINANT ANTIGEN VACCINED.R. Chandravanshi
This document discusses synthetic peptide vaccines and recombinant antigen vaccines. It begins with definitions of vaccines and how they work to induce an immune response. It then describes two types of modern vaccines: synthetic peptide vaccines and recombinant antigen vaccines. Synthetic peptide vaccines use short fragments of viral or bacterial proteins that contain epitopes to induce an immune response, while recombinant antigen vaccines produce antigens through DNA technology by inserting viral or bacterial DNA into cells that then express the antigen protein. Both types of modern vaccines offer advantages over traditional vaccines like easier production and stability without refrigeration.
Production of therapeutic proteins in plantsUjala Ejaz
This document discusses the production of therapeutic proteins in plants. Therapeutic proteins are engineered proteins used for pharmaceutical purposes to treat diseases. Plants can be genetically modified to produce these proteins through nuclear or plastid transformation or transient expression. Examples of therapeutic proteins produced in plants include monoclonal antibodies in corn, HIV-suppressing proteins in spinach, and vaccines for hepatitis B in potato. While plant-based production has cost advantages over traditional methods, there are also bio-safety concerns regarding environmental contamination and food supply contamination that must be addressed.
One of the first plasmids to be used in recombinant genetics was called pBR322. It is approximately 4300 bp in length and has two antibiotic resistance genes: Ap (Ampicillin) and Tc (Tetracycline). Bacteria cells that are successfully transformed with this plasmid are able to grow in the presence of both ampicillin and tetracycline antibiotics
- Monoclonal antibodies are identical antibodies produced by a single clone of B cells or hybridoma. They are produced by fusing B cells from an immunized animal with myeloma cells.
- The hybridoma technique involves immunizing an animal, isolating spleen B cells, fusing them with myeloma cells using polyethylene glycol, and screening clones to identify those that produce the desired antibody.
- Hybridomas are immortal cell lines that can produce large quantities of identical monoclonal antibodies directed against a specific antigen or epitope. This technique allows mass production of antibodies for research, diagnostic, and therapeutic uses.
monoclonal antibodies are prepared in laboratories through hybridoma technique, which have their own significance in treating and diagnosing diseases like cancer detection and treatment, pregnancy test, locating blood clots, screening blood for HIU and diagnosing of various other diseases.
This document discusses therapeutic agents derived from non-recombinant organisms. It notes that nature provides a diverse source of potential therapeutic agents from plants, animals, marine organisms and microbes. Specifically, it outlines that microbes have potential to produce drugs for diseases like cancer, anemia, and diabetes. The document then categorizes different types of therapeutic agents including enzymes, antimicrobial peptides, proteins, interferons and immunosuppressors. It provides examples of enzyme therapeutic uses such as oncolytics, anticoagulants, thrombolytics and metabolic deficiency replacements. The document concludes that organisms can be used to treat diseases like cancer, infections, and genetic disorders and that delivery strategies of therapeutic agents can be improved.
History of immunology grew out of the observation that individuals who have recovered from certain infectious diseases were thereafter protected from the disease.
SYNTHETIC PEPTIDE VACCINES AND RECOMBINANT ANTIGEN VACCINED.R. Chandravanshi
This document discusses synthetic peptide vaccines and recombinant antigen vaccines. It begins with definitions of vaccines and how they work to induce an immune response. It then describes two types of modern vaccines: synthetic peptide vaccines and recombinant antigen vaccines. Synthetic peptide vaccines use short fragments of viral or bacterial proteins that contain epitopes to induce an immune response, while recombinant antigen vaccines produce antigens through DNA technology by inserting viral or bacterial DNA into cells that then express the antigen protein. Both types of modern vaccines offer advantages over traditional vaccines like easier production and stability without refrigeration.
Production of therapeutic proteins in plantsUjala Ejaz
This document discusses the production of therapeutic proteins in plants. Therapeutic proteins are engineered proteins used for pharmaceutical purposes to treat diseases. Plants can be genetically modified to produce these proteins through nuclear or plastid transformation or transient expression. Examples of therapeutic proteins produced in plants include monoclonal antibodies in corn, HIV-suppressing proteins in spinach, and vaccines for hepatitis B in potato. While plant-based production has cost advantages over traditional methods, there are also bio-safety concerns regarding environmental contamination and food supply contamination that must be addressed.
One of the first plasmids to be used in recombinant genetics was called pBR322. It is approximately 4300 bp in length and has two antibiotic resistance genes: Ap (Ampicillin) and Tc (Tetracycline). Bacteria cells that are successfully transformed with this plasmid are able to grow in the presence of both ampicillin and tetracycline antibiotics
Introduction
Definition of an Insect Resistant Plant
What is the Bt gene?
History
The crystal ( cry)Proteins
Definition of cry protein
How does Bt work?
Mechanism of Bt toxicity
Mode of Action of Insecticidal Crystal Protein
Bt Technology
The Insect Resistance Problem
Advantages
Limitations
Conclusion
References
Animal cell culture in Biopharmaceutical Industry in the Production of Therap...Shubham Chinchulkar
This presentation will help you to understand the basics of Animal cell culture along with its applicability in the diagnosis and treatment of cancer, and autoimmune diseases.
Plantibodies are antibodies or proteins produced in genetically modified crops. They can be used as edible vaccines, diagnostic or therapeutic monoclonal antibodies, or to confer disease resistance in plants. There are three main types - expression of full-length antibodies, antibody fragments, or single chain or single domain genes. Plants are an attractive production system due to low contamination risk, flexible and low-cost production, and no ethical issues. The plantibody approach involves constructing genes containing antibody sequences with effective promoters, then transforming plants and propagating through breeding or tissue culture. Applications include therapeutic antibodies for various diseases and oral vaccines delivered through edible plants. While plant-produced antibodies have identical peptide sequences and functions to mammalian ones, they have different post-
DNA vaccines (types, method and mechanism) Aneela Rafiq
DNA Vaccine is very promising method in current century. it can eliminate the risks of encountering pathogen with living cell.
this presentation has a brief concept about DNA Vaccine, to understand the baseline of genetic vaccine.
The document discusses recombinant vaccines and their production. It defines recombinant vaccines as those generated using recombinant DNA technology, with genes encoding antigens isolated from pathogens inserted into nonvirulent viruses or bacteria. There are three main types of recombinant vaccines: recombinant subunit vaccines involving expression of immunogenic proteins, DNA vaccines using genetic material from pathogens, and recombinant vector vaccines inserting pathogen genes into viruses or bacteria. The document outlines the advantages of recombinant vaccines as generating humoral and T-helper immune responses while being safe, inexpensive, and allowing antigens to be made more immunogenic, though they may require multiple doses and adjuvants.
Monoclonal And Polyclonal Antibody ProductionBalamurugan K
Antibodies are proteins produced by plasma cells that bind to specific antigens. Monoclonal antibodies bind to a single epitope of an antigen, whereas polyclonal antibodies bind to multiple epitopes. Monoclonal antibodies are produced through cell fusion, where antibody-producing spleen cells are fused with myeloma cells to form immortal hybridoma cell lines that each secrete a single antibody clone. This process allows continuous production of homogeneous antibodies against a specific epitope. In contrast, polyclonal antibodies come from antiserum containing a heterogeneous mixture of antibodies against multiple epitopes on an antigen.
Plants can be used as bioreactors to produce commercial proteins and chemicals through transgenic techniques. Unlike bacterial and animal cell culture systems, plants are inexpensive to grow and maintain, and proteins produced in plants pose less risk of mammalian virus contamination. However, purifying the protein product from plant tissue remains a challenge. Researchers have successfully used plants to produce antibodies, polymers, and potential therapeutic agents. Edible vaccines produced in plants could provide a low-cost, easy to administer option, but expression levels and immune tolerance responses must still be addressed before clinical use.
Viral vectors are efficient tools for gene delivery due to viruses' ability to transfer DNA into host cells. The document discusses several types of viral vectors, including adenoviral, adeno-associated, retroviral, lentiviral, and baculovirus vectors. It provides details on the structure and genome organization of different viruses used to create these vectors. The document also explains the process of generating recombinant viral vectors by removing unnecessary viral genes and inserting genes of interest. Viral vectors allow for transient or stable gene expression and are useful for both research and clinical applications such as gene therapy and vaccine development.
Plantibodies are antibodies that are produced by genetically modified plants. They are made by transforming plants with antibody genes from animals, allowing the plants to produce antibodies. The first plantibody was a mouse antibody produced by tobacco plants in 1989. Plants are now used as antibody factories to produce large amounts of clinically useful proteins through their endomembrane and secretory systems. Methods for producing plantibodies include transforming plants and targeting the antibodies to be secreted to areas like the apoplast or endoplasmic reticulum. Plantibodies can be purified cheaply in large quantities from transgenic seeds and may be useful for treating illnesses through clinical trials.
Fusion proteins & inclusion bodies, M. Sc. Zoology, University of MumbaiRoyston Rogers
Foreign proteins expressed in host cells are often degraded by host cell proteases. To address this, fusion proteins are used where the target protein is fused to a host protein. This protects the target protein and allows its purification using affinity tags on the host protein. Inteins can also be used to cleave target proteins from fusion partners after purification. Chaperone proteins further help with expression of foreign eukaryotic proteins in prokaryotes by aiding proper folding.
This document discusses airlift fermenters, which are a type of bioreactor. It provides three key points:
1) Airlift fermenters are pneumatic bioreactors that use gas injection and density gradients to circulate liquids without a mechanical agitator, reducing shear stress and heat generation.
2) There are two main types - internal loop fermenters with a central draft tube, and external loop fermenters with separate circulation channels.
3) Airlift fermenters are commonly used for aerobic processes, producing products like single cell proteins, due to their efficiency and ability to handle fragile cells. They have simple designs but require higher gas pressures and throughputs than stirred
This ppt provide information about the conventional methods of animal vaccine production..it is somewhat differ from my earlier ppt of vaccine production techniques..
Tumor formtion , ti ri plasmid , dna trnsfr.Sukirti Vedula
This document summarizes information about tumor formation in plants caused by Agrobacterium tumefaciens and Agrobacterium rhizogenes bacteria. It discusses how the Ti and Ri plasmids are transferred into plant cells, causing crown gall and hairy root diseases respectively. The Ti plasmid contains T-DNA which is integrated into the plant genome, inducing tumor formation and opine synthesis. DNA transfer techniques like electroporation, microprojectile bombardment, and microinjection are also summarized for introducing foreign genes into plant cells.
This document discusses the basic components and types of cell culture media. It explains that media must provide nutrients, regulate pH and osmolality, and supply gases. The key components of media include amino acids, sugars, salts, vitamins and buffers. Natural media uses extracts while artificial media uses defined components. Common media include MEM, DMEM and RPMI. Factors like pH, temperature, CO2 and sterility are also important for cell growth conditions. A variety of equipment is needed to maintain sterile culture conditions and regulate the environment.
Tumor antigens are substances produced by tumor cells that can be used to identify specific tumors. There are two main types of tumor antigens: tumor specific transplantation antigens that are unique to cancer cells and mediate immune responses; and tumor associated transplantation antigens that are expressed in fetal and some adult cells but can be reactivated in tumors through oncofetal proteins. Tumor antigens are useful markers because certain types are abundantly expressed in different tumors.
The document discusses the plasmid vector pBR322, which was constructed in 1977 and is one of the most commonly used cloning vectors. It describes the origins and components of pBR322, including two antibiotic resistance genes, the origin of replication, and restriction enzyme cleavage sites. The document also summarizes the construction of several derivatives of pBR322, including pBR327, pUC18, and pBR118/119, and notes their applications and advantages over the original pBR322 vector.
This document discusses vaccines and the potential for using plants as bioreactors to produce vaccines. It notes that vaccines provide active immunity against diseases and typically contain weakened or killed forms of pathogens. Vaccination is an effective public health measure. Recently, genetically engineering plants to express antigen proteins from pathogens has emerged as a way to develop subunit vaccines more economically than traditional methods. The document outlines opportunities like safety, immune response, stability, low cost, and challenges like regulatory concerns for plant-based vaccines. It provides examples of plant-made influenza vaccines in development that could allow rapid production in response to pandemics.
Cosmid Vectors, YAC and BAC Expression VectorsCharthaGaglani
1. Cosmid vectors are hybrid vectors derived from plasmids that contain the cos site from bacteriophage lambda, allowing them to clone DNA fragments up to 40 kb in size.
2. Yeast artificial chromosomes (YACs) are engineered yeast chromosomes that can clone very large DNA fragments, averaging 200-500 kb but up to 1 MB, taking advantage of yeast cell machinery.
3. Bacterial artificial chromosomes (BACs) are DNA constructs based on fertility plasmids that can clone up to 300 kb fragments and address issues with YAC stability and recombination.
Recombinant vaccines are produced using genetic engineering techniques. The first licensed human recombinant vaccine was for hepatitis B in 1981. Recombinant vaccines include subunit vaccines containing pathogen proteins or peptides, attenuated recombinant vaccines using genetically modified non-pathogenic organisms, and vector recombinant vaccines utilizing viral vectors carrying foreign antigen genes. Recombinant vaccines offer advantages like purity, stability and safety compared to traditional vaccines.
What are monoclonal antibodies? advantages and disadvantages, their experiments, production of hybridoma lines, their action in Escherichia coli, and applications.
Monoclonal antibodies are produced through the hybridoma technology developed by Kohler and Milstein in 1975. This involves fusing B cells from an immunized animal with myeloma cells to produce hybridomas that secrete a single antibody specific to the target antigen. The antibodies can be screened and a clone selected to mass produce monoclonal antibodies that recognize a single epitope. Monoclonal antibodies have various applications including disease diagnosis, immunotherapy, and immunosuppression for organ transplants. While powerful tools, limitations include potential immunogenicity and high production costs.
Introduction
Definition of an Insect Resistant Plant
What is the Bt gene?
History
The crystal ( cry)Proteins
Definition of cry protein
How does Bt work?
Mechanism of Bt toxicity
Mode of Action of Insecticidal Crystal Protein
Bt Technology
The Insect Resistance Problem
Advantages
Limitations
Conclusion
References
Animal cell culture in Biopharmaceutical Industry in the Production of Therap...Shubham Chinchulkar
This presentation will help you to understand the basics of Animal cell culture along with its applicability in the diagnosis and treatment of cancer, and autoimmune diseases.
Plantibodies are antibodies or proteins produced in genetically modified crops. They can be used as edible vaccines, diagnostic or therapeutic monoclonal antibodies, or to confer disease resistance in plants. There are three main types - expression of full-length antibodies, antibody fragments, or single chain or single domain genes. Plants are an attractive production system due to low contamination risk, flexible and low-cost production, and no ethical issues. The plantibody approach involves constructing genes containing antibody sequences with effective promoters, then transforming plants and propagating through breeding or tissue culture. Applications include therapeutic antibodies for various diseases and oral vaccines delivered through edible plants. While plant-produced antibodies have identical peptide sequences and functions to mammalian ones, they have different post-
DNA vaccines (types, method and mechanism) Aneela Rafiq
DNA Vaccine is very promising method in current century. it can eliminate the risks of encountering pathogen with living cell.
this presentation has a brief concept about DNA Vaccine, to understand the baseline of genetic vaccine.
The document discusses recombinant vaccines and their production. It defines recombinant vaccines as those generated using recombinant DNA technology, with genes encoding antigens isolated from pathogens inserted into nonvirulent viruses or bacteria. There are three main types of recombinant vaccines: recombinant subunit vaccines involving expression of immunogenic proteins, DNA vaccines using genetic material from pathogens, and recombinant vector vaccines inserting pathogen genes into viruses or bacteria. The document outlines the advantages of recombinant vaccines as generating humoral and T-helper immune responses while being safe, inexpensive, and allowing antigens to be made more immunogenic, though they may require multiple doses and adjuvants.
Monoclonal And Polyclonal Antibody ProductionBalamurugan K
Antibodies are proteins produced by plasma cells that bind to specific antigens. Monoclonal antibodies bind to a single epitope of an antigen, whereas polyclonal antibodies bind to multiple epitopes. Monoclonal antibodies are produced through cell fusion, where antibody-producing spleen cells are fused with myeloma cells to form immortal hybridoma cell lines that each secrete a single antibody clone. This process allows continuous production of homogeneous antibodies against a specific epitope. In contrast, polyclonal antibodies come from antiserum containing a heterogeneous mixture of antibodies against multiple epitopes on an antigen.
Plants can be used as bioreactors to produce commercial proteins and chemicals through transgenic techniques. Unlike bacterial and animal cell culture systems, plants are inexpensive to grow and maintain, and proteins produced in plants pose less risk of mammalian virus contamination. However, purifying the protein product from plant tissue remains a challenge. Researchers have successfully used plants to produce antibodies, polymers, and potential therapeutic agents. Edible vaccines produced in plants could provide a low-cost, easy to administer option, but expression levels and immune tolerance responses must still be addressed before clinical use.
Viral vectors are efficient tools for gene delivery due to viruses' ability to transfer DNA into host cells. The document discusses several types of viral vectors, including adenoviral, adeno-associated, retroviral, lentiviral, and baculovirus vectors. It provides details on the structure and genome organization of different viruses used to create these vectors. The document also explains the process of generating recombinant viral vectors by removing unnecessary viral genes and inserting genes of interest. Viral vectors allow for transient or stable gene expression and are useful for both research and clinical applications such as gene therapy and vaccine development.
Plantibodies are antibodies that are produced by genetically modified plants. They are made by transforming plants with antibody genes from animals, allowing the plants to produce antibodies. The first plantibody was a mouse antibody produced by tobacco plants in 1989. Plants are now used as antibody factories to produce large amounts of clinically useful proteins through their endomembrane and secretory systems. Methods for producing plantibodies include transforming plants and targeting the antibodies to be secreted to areas like the apoplast or endoplasmic reticulum. Plantibodies can be purified cheaply in large quantities from transgenic seeds and may be useful for treating illnesses through clinical trials.
Fusion proteins & inclusion bodies, M. Sc. Zoology, University of MumbaiRoyston Rogers
Foreign proteins expressed in host cells are often degraded by host cell proteases. To address this, fusion proteins are used where the target protein is fused to a host protein. This protects the target protein and allows its purification using affinity tags on the host protein. Inteins can also be used to cleave target proteins from fusion partners after purification. Chaperone proteins further help with expression of foreign eukaryotic proteins in prokaryotes by aiding proper folding.
This document discusses airlift fermenters, which are a type of bioreactor. It provides three key points:
1) Airlift fermenters are pneumatic bioreactors that use gas injection and density gradients to circulate liquids without a mechanical agitator, reducing shear stress and heat generation.
2) There are two main types - internal loop fermenters with a central draft tube, and external loop fermenters with separate circulation channels.
3) Airlift fermenters are commonly used for aerobic processes, producing products like single cell proteins, due to their efficiency and ability to handle fragile cells. They have simple designs but require higher gas pressures and throughputs than stirred
This ppt provide information about the conventional methods of animal vaccine production..it is somewhat differ from my earlier ppt of vaccine production techniques..
Tumor formtion , ti ri plasmid , dna trnsfr.Sukirti Vedula
This document summarizes information about tumor formation in plants caused by Agrobacterium tumefaciens and Agrobacterium rhizogenes bacteria. It discusses how the Ti and Ri plasmids are transferred into plant cells, causing crown gall and hairy root diseases respectively. The Ti plasmid contains T-DNA which is integrated into the plant genome, inducing tumor formation and opine synthesis. DNA transfer techniques like electroporation, microprojectile bombardment, and microinjection are also summarized for introducing foreign genes into plant cells.
This document discusses the basic components and types of cell culture media. It explains that media must provide nutrients, regulate pH and osmolality, and supply gases. The key components of media include amino acids, sugars, salts, vitamins and buffers. Natural media uses extracts while artificial media uses defined components. Common media include MEM, DMEM and RPMI. Factors like pH, temperature, CO2 and sterility are also important for cell growth conditions. A variety of equipment is needed to maintain sterile culture conditions and regulate the environment.
Tumor antigens are substances produced by tumor cells that can be used to identify specific tumors. There are two main types of tumor antigens: tumor specific transplantation antigens that are unique to cancer cells and mediate immune responses; and tumor associated transplantation antigens that are expressed in fetal and some adult cells but can be reactivated in tumors through oncofetal proteins. Tumor antigens are useful markers because certain types are abundantly expressed in different tumors.
The document discusses the plasmid vector pBR322, which was constructed in 1977 and is one of the most commonly used cloning vectors. It describes the origins and components of pBR322, including two antibiotic resistance genes, the origin of replication, and restriction enzyme cleavage sites. The document also summarizes the construction of several derivatives of pBR322, including pBR327, pUC18, and pBR118/119, and notes their applications and advantages over the original pBR322 vector.
This document discusses vaccines and the potential for using plants as bioreactors to produce vaccines. It notes that vaccines provide active immunity against diseases and typically contain weakened or killed forms of pathogens. Vaccination is an effective public health measure. Recently, genetically engineering plants to express antigen proteins from pathogens has emerged as a way to develop subunit vaccines more economically than traditional methods. The document outlines opportunities like safety, immune response, stability, low cost, and challenges like regulatory concerns for plant-based vaccines. It provides examples of plant-made influenza vaccines in development that could allow rapid production in response to pandemics.
Cosmid Vectors, YAC and BAC Expression VectorsCharthaGaglani
1. Cosmid vectors are hybrid vectors derived from plasmids that contain the cos site from bacteriophage lambda, allowing them to clone DNA fragments up to 40 kb in size.
2. Yeast artificial chromosomes (YACs) are engineered yeast chromosomes that can clone very large DNA fragments, averaging 200-500 kb but up to 1 MB, taking advantage of yeast cell machinery.
3. Bacterial artificial chromosomes (BACs) are DNA constructs based on fertility plasmids that can clone up to 300 kb fragments and address issues with YAC stability and recombination.
Recombinant vaccines are produced using genetic engineering techniques. The first licensed human recombinant vaccine was for hepatitis B in 1981. Recombinant vaccines include subunit vaccines containing pathogen proteins or peptides, attenuated recombinant vaccines using genetically modified non-pathogenic organisms, and vector recombinant vaccines utilizing viral vectors carrying foreign antigen genes. Recombinant vaccines offer advantages like purity, stability and safety compared to traditional vaccines.
What are monoclonal antibodies? advantages and disadvantages, their experiments, production of hybridoma lines, their action in Escherichia coli, and applications.
Monoclonal antibodies are produced through the hybridoma technology developed by Kohler and Milstein in 1975. This involves fusing B cells from an immunized animal with myeloma cells to produce hybridomas that secrete a single antibody specific to the target antigen. The antibodies can be screened and a clone selected to mass produce monoclonal antibodies that recognize a single epitope. Monoclonal antibodies have various applications including disease diagnosis, immunotherapy, and immunosuppression for organ transplants. While powerful tools, limitations include potential immunogenicity and high production costs.
This document discusses monoclonal antibody production and applications. It begins by defining monoclonal and polyclonal antibodies, noting that monoclonal antibodies are identical because they are derived from a single parent cell. It then covers the history of monoclonal antibody development, the monoclonal antibody production method involving mouse immunization and cell fusion, and the types and uses of monoclonal antibodies including diagnostic and cancer treatment applications. Potential side effects of monoclonal antibody therapy are also mentioned.
Monoclonal antibodies are identical antibodies produced by one type of immune cell that are clones of a single parent cell. They are produced using hybridoma technology which involves fusing antibody producing B cells from an immunized animal with myeloma tumor cells to create a hybridoma cell line. This hybridoma cell line is capable of indefinite division in culture while producing the same monoclonal antibody. The monoclonal antibodies are then purified from the culture supernatant and have various diagnostic and therapeutic applications such as cancer treatment.
What are Antibody
Monoclonal Antibody (mAb)
Structure of mAb
Types of Monoclonal Antibody (mAb)
Preparation of Monoclonal Antibody
Hybridoma Technique, Phage display Technique
Application of Monoclonal Antibody
Advantage and Disadvantage of Monoclonal Antibody
Project Report on Monoclonal antibodies By VanshikaVanshikaBeniwal
HYBRIDOMA TECHNOLOGY
Monoclonal antibodies (MAbs) are a kind of immunological instrument that has been employed in immunology, biotechnology, biochemistry, and applied biology for a protracted time.
Monoclonal antibodies are identical antibodies produced by a single clone of B cells that recognize the same epitope on an antigen. They can be produced in a laboratory by fusing B cells that produce a desired antibody with myeloma cells to form hybridomas. Monoclonal antibodies have many diagnostic applications as they can be used to detect specific substances like proteins, pathogens, and tumor markers. They allow for rapid diagnosis of diseases like hepatitis, influenza, and cancer. Monoclonal antibodies are also used in pregnancy tests and monitoring drug levels in the body.
PPT ON MONOCLONAL ANTIBODIES.saurabh punia.ppt.pptxSAURABH PUNIA
This document discusses monoclonal antibodies, including their production, structure, and applications. Monoclonal antibodies are produced through hybridoma technology, which involves fusing antibody-producing B cells with myeloma cells to create immortal cell lines. They have identical binding sites since they are clones of a single parent cell. The production process involves immunizing an animal, harvesting spleen cells, fusing them with myeloma cells, selecting hybridomas that produce the desired antibody, and propagating these cells to produce large amounts of monoclonal antibodies. Monoclonal antibodies have various medical applications, such as targeted delivery of cancer drugs and treatment of diseases.
This document summarizes and compares the processes for producing monoclonal and polyclonal antibodies. Monoclonal antibodies are produced from a single clone of B cells and recognize a single epitope, while polyclonal antibodies are a heterogeneous mixture produced from different B cell clones that recognize multiple epitopes of the same antigen. The production of monoclonal antibodies involves immunizing an animal, fusing B cells with myeloma cells to create hybridomas, and screening for antibodies. Polyclonal antibodies are harvested directly from immunized animal serum. The document outlines the key similarities and differences between these two antibody types.
Monoclonal antibodies are produced from single clones of B cells and recognize a specific antigen. They have advantages over polyclonal antibodies like homogeneity, specificity, and unlimited production. Monoclonal antibodies are created through cell fusion between B cells and myeloma cells to form immortal hybridoma cells that produce the same antibody. They have various medical uses including cancer therapy, diagnostics, and treatment of autoimmune disorders.
Monoclonal antibodies are identical antibodies produced by a single clone of B cells or hybridomas. They can be used for diagnostic tests and therapy. In 1975, Köhler and Milstein developed the technique of fusing myeloma cells with spleen cells from immunized mice to generate hybridomas that produce monoclonal antibodies. This provided an unlimited supply of identical antibodies against specific antigens. Monoclonal antibodies have various applications such as diagnostic tests, purification of substances, and cancer treatment when conjugated to toxins or radioisotopes. However, they can cause side effects like allergic reactions, vomiting, and diarrhea when used intravenously.
Monoclonal antibodies are identical antibodies produced by a single clone of B cells that are specific to a single epitope. They offer reproducible and predictable immune responses. Polyclonal antibodies are produced by multiple B cell clones and bind to multiple epitopes. Monoclonal antibodies are produced using hybridoma technology which fuses myeloma cells with antibody producing spleen cells to generate immortal hybridoma cell lines. They have various applications in diagnostics and therapeutics including cancer treatment by mechanisms like blocking receptor signaling, immunomodulation and antibody-dependent cytotoxicity.
Hybridoma technology for production of monoclonal antibodies.pdfsoniaangeline
The document discusses hybridoma technology for producing monoclonal antibodies. It describes the process which involves fusing antibody-producing B cells from immunized mice with myeloma tumor cells, using a chemical or electrical method. The resulting hybridoma cells are selected and cultured, retaining the antibody-producing ability of B cells and indefinite lifespan of tumor cells. The monoclonal antibodies produced can be extracted and purified for therapeutic and research applications.
Monoclonal antibody production by hybridoma technologyHasnat Tariq
Monoclonal antibodies are identical antibodies produced by a single clone of B cells that recognize a specific epitope. They are produced through the hybridoma technology which involves fusing antibody producing B cells with myeloma cells to form a hybridoma cell line. This allows for the mass production of antibodies that recognize a single epitope. Monoclonal antibodies have various applications including use in biochemical analysis through techniques like ELISA and RIA. They can also be used for diagnostic imaging by labeling them with radioisotopes.
Monoclonal antibodies (mAbs) are identical antibodies produced by a single clone of immune cells that are all clones of the same parent cell. mAbs can be produced against almost any substance and are important tools in biochemistry and medicine. They are produced through the fusion of antibody-producing cells with myeloma cells to form hybridomas that produce identical antibodies. mAbs have applications in research, diagnostics, and therapy due to their specificity and ability to detect or purify target substances.
The document discusses the principles of antibody production, including how antibodies are produced by B cells in response to antigens, the process of antibody production including antigen presentation, activation of helper T cells and B cells, proliferation of plasma cells, and the role of memory cells in the secondary response. It also covers the structure and classes of antibodies, as well as the production and uses of monoclonal and polyclonal antibodies in research, diagnosis and therapy.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
2. CONTENT
S
• Basic concept and introduction.
• Advantages and disadvantages of using
monoclonal antibodies.
• Preparation of monoclonal antibodies.
• Applications of monoclonal antibodies.
MONOCLONAL IN E.COLI 2
4. WHAT ARE ANTIBODIES?
“ Every body has a specialized search and destroy army.
Antibodies are key players in that fight ”
Antibodies are protein made by plasma cells ( type of WBC’s) in
response to an antigen.
It is a Y shaped protein .
Every body naturally produces antibodies.
Are elements of the immune system produced by B lymphocytes.
Bind to foreign proteins in the body known as antigens, with the
aim of eliminating them.
Naturally circulate in the body searching for foreign bodies
(antigens).
MONOCLONAL IN E.COLI 4
5. MONOCLONAL IN E.COLI 5
Each tip of the “Y” of an antibody
contains a paratope (analogous to a
lock) that is specific for one particular
epitope (analogous to a key) on an
antigen, allowing these two structures
to bind together with precision.
They attach to the antigen and destroy
it by using various immune
mechanisms.
Classes- IgA, IgD, IgE, IgG, or IgM.
7. MONOCLONAL ANTIBODIES
Monoclonal: forming a clone which is derived asexually from a
single individual or cell.
Monoclonal antibodies are artificial antibodies that are produced
from a single clone of cells by fusing B lymphocytes to myeloma
cells.
The fusion of B-lymphocytes with myeloma cells by somatic cell
hybridization secretes desired antibody-producing elements which
are immortalized cell-lines known as a hybridoma.
These hybridomas produce homogenous monoclonal
antibodies.
MONOCLONAL IN E.COLI 7
8. MONOCLONAL IN E.COLI 8
Monoclonal antibodies (mAbs) have the ability to recognize unique
binding sites (epitopes) found on the specific antigens.
This differentiates monoclonal antibodies from polyclonal
antibodies i.e. monoclonal antibodies are derived from a single B-
cell clone to target single epitopes, unlike polyclonal antibodies
that target multiple epitopes.
Monoclonal antibodies (mAbs) have been produced to target
receptors or other foreign proteins that are present on the surface
of normal cells and cancer cells.
mAbs have given researchers the ability to study biological
processes reliably and with unprecedented accuracy
9. HISTORY
•In the early 1900s, immunologist, Paul
Ehrlich proposed the idea of a Zauberkugel – “magic
bullet", conceived of as a compound which selectively
targeted a disease-causing organism, and could
deliver a toxin for that organism.
•This underpinned the concept of monoclonal
antibodies and monoclonal drug conjugates
•By the 1970s, lymphocytes producing a single
antibody were known, in the form of multiple
myeloma – a cancer affecting B-cells
MONOCLONAL IN E.COLI 9
PAUL EHRLICH
(1854-1915)
10. In 1973, Jerrold Schwaber described the production of
monoclonal antibodies using human–mouse hybrid cells
In 1975, Georges kohler and Cesar Milstein succeeded in
making fusions of myeloma cell lines with B cells to create
hybridomas that could produce antibodies, specific to known
antigens and that were immortalized.
In 1988, Greg and his team pioneered the techniques
to humanize monoclonal antibodies,
By the 1990s research made progress in using monoclonal
antibodies therapeutically,
MONOCLONAL IN E.COLI 10
12. TYPES OF MONOCLONAL ANTIBODIES
Accordingly, mAbs are of four broad types.
Murine: Made from mouse proteins, names of drugs based on this end in –
omab.
Chimeric: A combination of mouse and human proteins, names of drugs
based on this end in –ximab.
Humanized: Here small doses of mouse proteins are attached to human
proteins, names of drugs based on this end in –zumab.
Human: These are fully human proteins, names of drugs based on this end
in –umab.
MONOCLONAL IN E.COLI 12
14. ADVANTAGES OF USING MONOCLONAL
ANTIBODIES
Monoclonal antibodies are one of the most successful
biotherapeutic drugs used in the treatment of many types of
cancer and autoimmune conditions.
They are also proven to reduce side-effects and improve patient
survival and well-being.
As side effects can be treated and reduced by using mice-human
hybrid cells or by using fractions of antibodies.
It is highly scalable, unlimited production source
It can produce antibodies when needed.
Antigen or immunogen need not be pure.
MONOCLONAL IN E.COLI 14
15. DISADVANTAGES OF USING MONOCLONAL
ANTIBODIES
It is a time consuming project, it may take time between 6 months
to 9 months.
It is very expensive.
It needs considerable effort to produce them.
System is only well developed for mouse and rat and not for other
animals.
More than 99% of the cells do not survive during the fusion
process that reduces the range of useful antibodies that can be
produced against an antigen.
There is also a possibility of generating immunogenicity (the ability
of a molecule or substance to provoke an immune response).
MONOCLONAL IN E.COLI 15
17. STEPS IN PRODUCTION OF MONOCLONAL
ANTIBODIES
MONOCLONAL IN E.COLI 17
Step 1-Immunization of rabbit or rat and extraction of B-
lymphocytes
In order to isolate B-lymphocyte producing certain antibodies,
rabbit or lab rat is immunized through repeated injection of specific
antigen (sheep RBCs)
A sample of B-cells is extracted from spleen of rabbit or rat.
18. MONOCLONAL IN E.COLI 18
Step 2- Fusion of myeloma cell with B- Lymphocytes
• The extracted B-lymphocytes is added to a culture of myeloma cell from bone
marrow.
Multiple myeloma cells are abnormal plasma cells (a type of white blood cell)
that build up in the bone marrow and form tumors in many bones of the body.
• Hybridoma cells formed by fusion of B-cell and myeloma cell.
• The fusion is done by using Polyethylene glycol (PEG) or by electroporation or
by using phages.
19. MONOCLONAL IN E.COLI 19
Step 3- Selection of hybridoma cell
The B-lymphocytes contains HPRT1 gene which codes for enzyme
Hypoxanthine-guanine phosphoribosyltransferase (HGPRT).
(HGPRT) is one of the central enzymes that recycle the building blocks of RNA and DNA
B- cells can grow in medium containing Hypoxanthine amonopterin thymine
(HAT media).
HAT Medium is a selection medium for mammalian cell culture.
Myeloma cell lack HPRT1 gene so, it does not produce HGPTR enzyme and it
does not grow in HAT medium.
The myeloma cell do not utilize Hypoxanthine.
Only hybridoma cell i.e.. fused cell between myeloma and B-cell can
survive and divide in HAT medium.
Screening is done to select hybridoma cells which are the desired cell for
monoclonal antibodies production
20. MONOCLONAL IN E.COLI 20
Step 4- Culture of Hybridoma cell.
The selected hybridoma cells are cultured in suitable medium like insulin,
transferon, ethanol, amine and other additional hormones.
Some commonly used culture media for hybridoma cell for production of
monoclonal antibodies are:
• DMEM (Dulbecco’s modified eagle medium)
• IMDM (Iscove’s Modified Dulbecco’s Medium)
• Ham’s F12
• RPMI 1640 medium (Roswell Park Memorial Institute
• 1640 medium)
21. MONOCLONAL IN E.COLI 21
Step 5-Inoculation of hybridoma cell into suitable host.
These hybridoma cells are then injected into lab animal so that they starts
to produce monoclonal antibodies.
These hybridoma cells may be frozen and store for future use.
22. MONOCLONAL IN E.COLI 22
Step 6-Extraction and purification of Monoclonal antibodies.
Monoclonal antibodies from host animal can be extracted and purified by the
following methods:
Ion exchange chromatography
Antigen affinity chromatography
Radial immunoassay
Immune precipitation
25. MONOCLONAL IN E.COLI 25
Escherichia coli
Escherichia coli, also known as E. coli, is a Gram-
negative, facultative anaerobic, rod-shaped bacteria.
It is commonly found in the animal feces, lower intestines
of mammals, and even on the edge of hot springs.
The simplicity and ease of fermentation has made E. coli
an ideal host for antibody fragment production.
E. coli advantages include:
• Well characterized genetics
• Short process development timeline
• Simple fermentation
• Scalability
• Less safety issues from viral contaminants
26. MONOCLONAL ANTIBODIES IN E.COLI
MONOCLONAL IN E.COLI 26
There are situations where E. coli may become the preferred production host
over the presently used mammalian cells.
A monoclonal antibody (mAb) was obtained from a mouse immunized with
solubilized outer membrane proteins extracted from a bovine
enterohemorrhagic strain of Escherichia coli (EHEC), O26.
EHEC is a pathogenic group of strains.
27. MONOCLONAL IN E.COLI 27
The mAb produced a strong immunoblot reaction
for E.coli 026.
This mAb was used in a sandwich enzyme-linked
immunosorbent assay (ELISA) format to screen
strains from animal and human sources, and all
reactive strains.
The antigen was detected in a group of strains
containing a high proportion of O26.
The association of the antigen detected by the MAb
with significant enteropathogenic E. coli and EHEC
virulence factors in isolates from both animal and
human enteric infections indicates a diagnostic
potential for the assay developed.
28. MONOCLONAL IN E.COLI 28
OBJECTIVE
The object was to produce monoclonal antibodies (mAbs) to EHEC surface
adhesion antigens, and to investigate their diagnostic application for the
detection of EHEC in animal and human enteric infections.
30. Disease diagnosis
• ELISA to test HIV, hepatitis, Herpes etc.
• RIA- to test viral infection.
• MAbs to Human chorionic gonadotropin.
Passive immunization or disease prevention
• Monoclonal antibodies based drugs can be used
to treat septic shock
• Used as vaccine
Detection and purification of biomolecules
• MAbs are very useful in determining the presence
and absence of specific proteins through western
blotting technique.
• Besides that, it can be used to classify strains of a
single pathogen. E.g. Neisseria gonorrhea can be
typed using Monoclonal antibodies.
MONOCLONAL IN E.COLI 30
31. COVID -19
In 2021, the monoclonal antibody therapies bamlanivimab /etesevimab and
casirivimab/imdevimab have been found to reduce the number of
hospitalizations, emergency room visits, and deaths. Both combination drugs
were granted emergency use authorization by the US Food and Drug
Administration (FDA).
In September 2021, the Biden administration purchased US$2.9 billion worth
of Regeneron monoclonal antibodies at $2,100 a dose to help curb the
shortage
As of December 2021, in vitro neutralization tests indicate monoclonal
antibody therapies (with the exception of sotrovimab and tixagevimab
/cilgavimab ) are likely not active against the Omicron variant.
MONOCLONAL IN E.COLI 31
32. SIDE-EFFECTS OF MONOCLONAL ANTIBODIES
MONOCLONAL IN E.COLI 32
Several monoclonal antibodies, such as bevacizumab and
cetuximab, can cause different kinds of side effects.
These side effects can be categorized into common and serious
side effects.
Common side effects include:
• Dizziness
• Headaches
• Allergies
• Fever
• Itching
• Insomnia
• Constipation etc.
33. 33
Serious side effects are
• Anaphylaxis
• Bleeding
• Arterial and venous blood clots
• Autoimmune thyroiditis
• Hypothyroidism
• Hepatitis
• Heart failure
• Cancer
34. PRESENTED
BY
Thank You
Kashish Imran
-Basic concept and
introduction
Sadqua Urooj
-Advantages and
disadvantages of using
monoclonal antibodies.
Khadeeja Yasmeen
-Preparation of monoclonal
antibodies
Draksha
-Applications of monoclonal
antibodies.
MONOCLONAL IN E.COLI 34
-BSc Biotechnology, Sem II
PRESENTED TO
Dr. Saima Wajid|Professor
(Assistant)|Jamia Hamdard