This document summarizes information on pediatric gliomas. It discusses how cancers arise from genetic and epigenetic aberrations, and outlines some of the major classes of cancer genes. It then focuses on pediatric brain tumors, noting that glioblastoma is a leading cause of cancer death in children. While the histology of pediatric glioblastoma is similar to the adult form, the molecular foundations differ. Specifically, pediatric glioblastomas often involve mutations in histone H3.3, ATRX, and DAXX. The document also summarizes key information on pediatric low-grade gliomas, molecular subgroups of pediatric high-grade gliomas, and opportunities for targeted therapies. It concludes by discussing the HeadSmart campaign in the
Genetic and Epigenetic Basis of Paediatric AstrocytomasDenise Sheer
This is a presentation I gave to the Winter Meeting of the Pathological Society, 7th Jan 2016, in a symposium on Molecular Pathology for Risk Stratification. The symposium was organised together with the British Neuropathological Society.
Microsatellite instability testing is an important part in diagnostics in Metastatic cancer settings after the FDA has given approval for tissue agnostic indications in almost all solid cancers. MSI by PCR and MMR status by IHC is also helpful for evaluation of genetic risk in Colon and Endometrial cancers
Future Strategies for Treatment of Brain TumoursAsad Qureshi
It includes a brief description of the methods that are currently employed and the methods that hold promise for the complete cure of brain cancer in the future
Audio and slides for this presentation are available on YouTube: http://youtu.be/FyL7sCDc4Zc
Mikael Rinne, MD, PhD, of Dana-Farber Cancer Institute's Center for Neuro-Oncology, discusses the science and genetics behind brain tumors. Rinne covers how scientists can discover DNA alterations in cancer, which alterations are found in brain tumors, and what scientists can do about the alterations.
This talk was originally given at Dana-Farber's "Living with Brain Tumors" forum on Sept. 7, 2013.
For more information, visit the website for Dana-Farber's Center for Neuro-Oncology: http://bit.ly/13nlpEv
P53 Tumor Suppressor Gene: Understanding P53 Based Dietary Anti Cancer Thera...Sheldon Stein
The P53 tumor suppressor gene which has been dubbed both the “Guardian of the Genome” (Lane 1992) and Science “Molecule of the Year”, is directly involved in the initiation of apoptosis and programmed cell death, to prevent an accumulation of abnormal cells. However apoptosis evasion is a characteristic feature of human cancers that promote tumor formation and progression (1). Presently, P53 is known to play a key role in practically all types of human cancers, and the mutation or loss of P53 gene function, can be identified in more than 50% of all human cancer cases worldwide.
This paper was uploaded on behalf of Professor Serge Jurasunas of Lisbon Portugal, www.sergejurasunas.com
The paper goes on to explain the role of the P53 gene and its relationship to Cancer and Apoptosis. It then elaborates on the importance of dietary agents can have a beneficial impact in cancer treatment, and provides a number of case studies. He addresses the importance of the P53 gene and DNA repair, as well as his use of Molecular Markers testing.
Professor Jurasunas believes:
We urgently need to put into clinical practice what we have discovered and learned. Targeting P53 and other genes remain one of the greatest challenges in the treatment of cancer. We have been working now for over 8 years with molecular markers as a diagnostic, prognosis, and follow up to treatment, selected the appropriate bioactive dietary compounds or anticancer agents, exceeding 1000 cases, blood tests, and successes. This may be an incentive for more doctors to venture into this new direction in order to achieve more beneficial results with their patient treatment, especially in cases where we can verify the ones who would be refractory to chemotherapy and have a poor response. It is always best to first check through patient testing, to determine whether or not chemotherapy would be beneficial.
Genetic and Epigenetic Basis of Paediatric AstrocytomasDenise Sheer
This is a presentation I gave to the Winter Meeting of the Pathological Society, 7th Jan 2016, in a symposium on Molecular Pathology for Risk Stratification. The symposium was organised together with the British Neuropathological Society.
Microsatellite instability testing is an important part in diagnostics in Metastatic cancer settings after the FDA has given approval for tissue agnostic indications in almost all solid cancers. MSI by PCR and MMR status by IHC is also helpful for evaluation of genetic risk in Colon and Endometrial cancers
Future Strategies for Treatment of Brain TumoursAsad Qureshi
It includes a brief description of the methods that are currently employed and the methods that hold promise for the complete cure of brain cancer in the future
Audio and slides for this presentation are available on YouTube: http://youtu.be/FyL7sCDc4Zc
Mikael Rinne, MD, PhD, of Dana-Farber Cancer Institute's Center for Neuro-Oncology, discusses the science and genetics behind brain tumors. Rinne covers how scientists can discover DNA alterations in cancer, which alterations are found in brain tumors, and what scientists can do about the alterations.
This talk was originally given at Dana-Farber's "Living with Brain Tumors" forum on Sept. 7, 2013.
For more information, visit the website for Dana-Farber's Center for Neuro-Oncology: http://bit.ly/13nlpEv
P53 Tumor Suppressor Gene: Understanding P53 Based Dietary Anti Cancer Thera...Sheldon Stein
The P53 tumor suppressor gene which has been dubbed both the “Guardian of the Genome” (Lane 1992) and Science “Molecule of the Year”, is directly involved in the initiation of apoptosis and programmed cell death, to prevent an accumulation of abnormal cells. However apoptosis evasion is a characteristic feature of human cancers that promote tumor formation and progression (1). Presently, P53 is known to play a key role in practically all types of human cancers, and the mutation or loss of P53 gene function, can be identified in more than 50% of all human cancer cases worldwide.
This paper was uploaded on behalf of Professor Serge Jurasunas of Lisbon Portugal, www.sergejurasunas.com
The paper goes on to explain the role of the P53 gene and its relationship to Cancer and Apoptosis. It then elaborates on the importance of dietary agents can have a beneficial impact in cancer treatment, and provides a number of case studies. He addresses the importance of the P53 gene and DNA repair, as well as his use of Molecular Markers testing.
Professor Jurasunas believes:
We urgently need to put into clinical practice what we have discovered and learned. Targeting P53 and other genes remain one of the greatest challenges in the treatment of cancer. We have been working now for over 8 years with molecular markers as a diagnostic, prognosis, and follow up to treatment, selected the appropriate bioactive dietary compounds or anticancer agents, exceeding 1000 cases, blood tests, and successes. This may be an incentive for more doctors to venture into this new direction in order to achieve more beneficial results with their patient treatment, especially in cases where we can verify the ones who would be refractory to chemotherapy and have a poor response. It is always best to first check through patient testing, to determine whether or not chemotherapy would be beneficial.
Currently, around 11 million people are living with a tumour that contains an inactivating mutation of TP53 (the human gene that encodes p53) and another 11 million have tumours in which the p53 pathway is partially abrogated through the inactivation of other signalling or effector components. The p53 pathway is therefore a prime target for new cancer drug development, and several original approaches to drug discovery that could have wide applications to drug development are being used. In one approach, molecules that activate p53 by blocking protein–protein interactions with MDM2 are in early clinical development. Remarkable progress has also been made in the development of p53-binding molecules that can rescue the function of certain p53 mutants.
Audio and slides for this presentation are available on YouTube: http://youtu.be/e_KVYJX2GTs
Have you ever wondered about your genetic predisposition to cancer? How cancer evolves in families? Or how cancer cells differ from normal cells in your body? Join Judy Garber, MD, MPH, director of the Center for Cancer Genetics and Prevention at Dana-Farber Cancer Institute, as she explores the basics of cancer genetics, DNA mutations, genetic screening, management, and more.
thyroid carcinoma with specific empahsis on papillary thyroid carcinoma, history, risk factors, involved signalling pathway of MAPK, world wide pathogenesis status, its proposed targetting, involvmetn in cancer types
Presentation by Dr. Wafik El-Deiry on June 4, 2017 entitled "Emerging Complexity of Tumor Heterogeneity and Clinical Practice" at the Tumor and Clinical Heterogeneity Education Session in the Tumor Biology Track at the 2017 ASCO
meeting in Chicago.
Currently, around 11 million people are living with a tumour that contains an inactivating mutation of TP53 (the human gene that encodes p53) and another 11 million have tumours in which the p53 pathway is partially abrogated through the inactivation of other signalling or effector components. The p53 pathway is therefore a prime target for new cancer drug development, and several original approaches to drug discovery that could have wide applications to drug development are being used. In one approach, molecules that activate p53 by blocking protein–protein interactions with MDM2 are in early clinical development. Remarkable progress has also been made in the development of p53-binding molecules that can rescue the function of certain p53 mutants.
Audio and slides for this presentation are available on YouTube: http://youtu.be/e_KVYJX2GTs
Have you ever wondered about your genetic predisposition to cancer? How cancer evolves in families? Or how cancer cells differ from normal cells in your body? Join Judy Garber, MD, MPH, director of the Center for Cancer Genetics and Prevention at Dana-Farber Cancer Institute, as she explores the basics of cancer genetics, DNA mutations, genetic screening, management, and more.
thyroid carcinoma with specific empahsis on papillary thyroid carcinoma, history, risk factors, involved signalling pathway of MAPK, world wide pathogenesis status, its proposed targetting, involvmetn in cancer types
Presentation by Dr. Wafik El-Deiry on June 4, 2017 entitled "Emerging Complexity of Tumor Heterogeneity and Clinical Practice" at the Tumor and Clinical Heterogeneity Education Session in the Tumor Biology Track at the 2017 ASCO
meeting in Chicago.
Molecular testing and tumor testing. Have you ever been asked about it? Have you wondered the importance of it, as it relates to your particular cancer? Have you ever wondered if you should or shouldn't have your tumor tested, and what that involves? Dr. Bekaii-Saab, MD will discuss the importance of testing the molecular biology of an individual patients tumor. How they do that and why it may or may not be important to have done. He will talk about how this is playing an even bigger role in choice of treatment options for patients now more than ever. And about the way physicians are making treatment choices based on each individuals molecular biology of their tumor.
Dr. Bekaii-Saab is the Section Chief, Gastrointestinal Oncology, James Cancer Hospital and Solove Research Institute. Dr. Bekaii-Saab is one of America’s Best Doctors. Additionally, he has been listed in U.S. News and World Report’s Top Doctors for multiple consecutive years. His research interests include experimental therapeutics/translational research focused on molecularly-targeted and immune-mediated therapies in gastrointestinal (GI) cancers. He is the principal investigator on numerous clinical trials, including studies supported through research grants from the National Cancer Institute (NCI) and the National Comprehensive Cancer Network (NCCN). Dr. Bekaii-Saab is the recipient of the prestigious NCI clinical investigator team leadership award and the ASCO leadership program development award.
Audio and slides for this presentation are available on YouTube: http://youtu.be/6W_xoH4s-Yk
Dr. Patrick Wen, of Dana-Farber Cancer Institute's Center for Neuro-Oncology, discusses current clinical trial options for brain tumor patients and some of the new therapies available in neuro-oncology. This presentation was originally given at Dana-Farber Cancer Institute on Dec. 4, 2013.
Role of human papillomavirus and tumor suppressor genesishita1994
Oral cancer is synonymous to Squamous Cell Carcinoma (SCC) of oral mucosal origin that accounts for more than 90% of all malignant presentations at the aforementioned anatomical sites.
More than 300,000 new cases worldwide are being diagnosed with oral SCC (OSCC) annually.
Approximately, 30,000 (US) & 40,000(EUROPE).
Oral cancer is estimated by the WHO to be the 8th most common cancer worldwide.
In India & other Asian countries, oral & oropharyngeal carcinomas (OCs) comprise up to half of all malignancies, with this particularly high prevalence being attributed to the influence of carcinogens & region-specific epidemiological factors, especially tobacco & betel quid chewing.
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
This year, the flu season is expected to coincide with a potential increase in other respiratory illnesses. The Karnataka Health Department has launched an awareness campaign highlighting the significance of flu vaccinations. They have set up multiple vaccination centers across Bangalore, making it convenient for residents to receive their shots.
To encourage widespread vaccination, the government is also collaborating with local schools, workplaces, and community centers to facilitate vaccination drives. Special attention is being given to ensuring that the vaccine is accessible to all, including marginalized communities who may have limited access to healthcare.
Residents are reminded that the flu vaccine is safe and effective. Common side effects are mild and may include soreness at the injection site, mild fever, or muscle aches. These side effects are generally short-lived and far less severe than the flu itself.
Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
HOT NEW PRODUCT! BIG SALES FAST SHIPPING NOW FROM CHINA!! EU KU DB BK substit...GL Anaacs
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Protonitazene (hydrochloride) CAS: 119276-01-6
Flubrotizolam CAS: 57801-95-3
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Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
3. • Cancer arises from the accumulation of Genetic aberrations
• Epigenetic aberrations are also present
• Together, they give rise to altered gene expression
• Over 500 genes are now known to be involved in cancer
1. Cancer as a disease of the genome
4. If we know which genes are involved, we can:
• Have a better understanding of cancer biology
• Develop diagnostic and prognostic markers
• Follow the clinical course
• Develop targeted treatment
9. 2. Paediatric brain tumours
• Leading cause of cancer-related death in children
• Difficult to treat
• Require interdisciplinary therapeu-c approach
• Survivors can have long-term neurological, motor, hormonal,
& cogni-ve impairment
• Neuropathology moved from morphology-based approach to
use of immunohistochemical & molecular markers
• Biology star-ng to be understood from molecular studies
• Targeted treatments emerging
10. Grade I
Pilocytic astrocytoma
Angiocentric glioma
Grade II
Diffuse astrocytoma
Pilomyxoid astrocytoma
Pleomorphic xanthoastrocytoma
Grade III
Anaplastic astrocytoma
Grade IV
Glioblastoma
Overview of paediatric gliomas
11. 3. Paediatric glioblastoma
• Highly malignant, diffusely infiltra-ng tumour
• Leading cause of cancer-related death in children
• 2-year survival ~12%
• Histology similar to adult GBM
• Molecular founda-ons are dis-nct from adult GBM
Paediatric GBM Young adult GBM Adult GBM
Adapted from E.H.Raabe et al, Cancer Cell 2012
21. Pilocytic astrocytoma
• Most common paediatric brain tumour
• Typically in cerebellum or midline along hypothalamic/optic pathways
• Well-circumscribed, non-invasive
• Usually treated with surgery alone
• Activating mutations in the MAPK signalling pathway (and PI3K)
Diffuse astrocytoma
• Infiltrating tumours
• Occur throughout the CNS
• Difficult to remove with surgery alone
• Treated with radiation and chemotherapy
• Activating mutations in the MAPK signalling pathway (and PI3K)
• MYB mutations
4. Paediatric low-grade glioma
26. Activation of the MAPK pathway
BRAF
MEK1/2
ERK1/2
RAS
P
P
Oncogene-Induced Senescence
NF1
Receptor Tyrosine Kinases
Extracellular Signals
E.H.Raabe, Clin Cancer Res 2011; K.Jacob, Clin Cancer Res 2011
37. 5. HeadSmart
HeadSmart is a national campaign
in the UK to raise awareness of the
signs and symptoms of brain tumours
in children and young people
amongst the public and health professionals
to reduce diagnosis times,
reducing long-term disabilities and saving lives