Biology 280S - Advanced in DNA Nanomedicine - Presentation Transcript
DNA Nanotechnology
Dr. Tai-ping Sun
Biology 280S: Biotechnology & Genetic Engineering
Joshua Mendoza-Elias
Fall 2008
In Cancer Therapeutics
Outline
Part 1 - The Fight Against Cancer
I. Cancer: Barriers to therapeutics
II. Cancer: Current Diagnostics & Therapeutics
III. Definition of Nanotechnology
A. What it is is
B. How it is made
V. Examples of early Nanotechnology
Part 2 - DNA as new Nanotechnology
VI. Properties of DNA
VII. Innovative uses of DNA-folding Pathways
VIII. Diagnostics
IX. Drug release
X. The Shape of Things to Come
Cancer
Clinical Manifestation:
-Uncontrolled cell proliferation
-Loss of apoptosis
-Growth Factors/Anti-Growth Factors
-Angiogenesis
-Invasion/metatases
Damage to somatic cell genome:
-Oncogenes
-Tumor suppressors
-DNA replication errors
-Epigenetics
Cancer: Barriers to Treatment
. Immune System Surveillance
A. Self-antigen
B. Clonal Evolution
. Tumour structures
. Cancer is “unique”
. Damage to healthy cells
Standing Order: Diagnostics & Therapeutics
Diagnostics:
Location
Histology
Stage
Treatments:
Surgery
Chemotherapy
Radiotherapy
Targeted Therapy
Immunotherapy
Hormonal Therapy
In situ : Breast Cancer tissue 400x
State of the Art: Cancer Nanotechnology Detection Treatment DNA Microarrays Bio “Finger” Nanoparticles Nanoparticles Earlier detection Better Targeting Imaging Receptor Mediated Lab on Chip Radiation Activated Gene based Metabolic based Tissue Engineering Cells GF scaffolding
Cancer Nanotechnology: Detection
Bio “Finger”
Cancer Nanotechnology: Treatment
Cancer Nanotechnology: Treatment continued . . .
Movie: National Cancer Institute
NCI Alliance for Nanotechnology in Cancer:
http: //youtube .com/watch? v=5jqQxuVncmc
Outline:
Part 1 - The Fight Against Cancer
I. Cancer: Barriers to therapeutics
II. Cancer: Current Diagnostics & Therapeutics
III. Definition of Nanotechnology
A. What it is is
B. How it is made
V. Examples of early Nanotechnology
Part 2 - DNA as new Nanotechnology
VI. Properties of DNA
VII. Innovative uses of DNA-folding Pathways
VIII. Diagnostics
IX. Drug release
X. The Shape of Things to Come
DNA Nanotechnology: Properties
Versatile: Information on multiple levels
Nucleic acid sequence
2° & 3 ° Structure
State Dependent: f(x): Energy Environment H = E + P V
Designed DNA molecules: Principles and Applications of Nanotechnology Condon, Anne Nature Reviews (2006) 7 : 565-575
Designed DNA molecules: Principles and Applications of Nanotechnology Condon, Anne Nature Reviews (2006) 7 : 565-575
An Autonomous Molecular Computer for Logical Control of Gene Expression Yaakov Benenson, Binyamin Gil, Uri Ben-Dor, Rivka Adar & Ehud Shapiro Nature (2004) 429 : 423-429
Prostate Cancer:
PPAP2B
Lipid phosphate phosphohydrolase (Vascular endothelial growth factor and type I collagen inducible protein) (VCIP)
GSTP1
Glutathione S-transferase. Role in detoxification by catalyzing the conjugation of many hydrophobic and electrophilic compounds with reduced glutathione.
PIM1
ATP-dependent Lon protease, involved in degradation of misfolded proteins in mitochondria; required for biogenesis and maintenance of mitochondria
HPN
Hepsin, a Putative Cell-Surface Serine Protease, is Required for Mammalian Cell Growth
[1] Condon, Anne. Designed DNA molecules: principles and applications of molecular nanotechnology. Nature Reviews (2006) 7 : 565-575.
[2] Ferrari, Mauro. Cancer nanotechnology: oppurtunities and challenges. Nature Reviews (2005) 5 : 161-171.
[3] Beneson, Y., Gil, B., Ben-Dor, U., Rivka, A. and Shapiro, E. An autonomous molecular computer for logical control of gene expression. Nature (2004) 429 : 423-429.
[4] Beneson, Y., Gil, B., Ben-Dor, U., Rivka, A. and Shapiro, E. An autonomous molecular computer for logical control of gene expression. Nature (2001) 414 : 430-434.
[5] Lu, Y., Liu, J. Functionjla DNA nanotechnology: emerging applications of DNAzymes and aptambers. Current Opinion in Biotechnology (2006) 17 : 580-588.
[6] Dittmer, W., Reuter, A., Simmel, F. A DNA-based machine that can cyclically bind and release thrombin. Angewandte Chemistry International Edition (2004) 43 : 3549-3553.
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