Behaviour Diseases Environment Genetics Infectious diseases

  • Published on
    31-Mar-2015

  • View
    221

  • Download
    1

Embed Size (px)

Transcript

<ul><li>Slide 1</li></ul> <p> Slide 2 Slide 3 Slide 4 Behaviour Diseases Environment Genetics Infectious diseases Slide 5 Drug Discovery and BioMedical research in the 21 st century? The third revolution Slide 6 The first revolution: The era of incidental discoveries 1930s-1960s Slide 7 Aspirin Felix Hoffman Slide 8 Penicillin Slide 9 The second revolution 1970s-2000s High throughput brute force screening of large libraries of chemical compounds Slide 10 Statins Akira Endo Slide 11 Future medicine- Targeted and Personally fitted medicine Personalized Medicine Slide 12 Medicine of the 21 st Century The 4Ps Medicine (Leroy Hood) Personalized, Predictive, Preventive, and Participatory Medicine Stem cell-based therapies Slide 13 Slide 14 Slide 15 Breast Cancer Estrogen Receptor Negative and Positive (predicts sensitivity to Tamoxifen) Future medicine- Targeted and Personally fitted and medicine - Personalized Medicine Slide 16 Herceptin (targeted) Slide 17 Fatal ADRs appear to be between the fourth and sixth leading cause of death in the USA Prevalence rate of ADR Slide 18 Age elderly children neonates Sex High/Body Weight Concomitant Disease Disease Process Organ Function Liver, Kidney, Cardiac Environmental Factors diet / smoking / comedications Inter-individual Variability in Drug Response Genetic polymorphisms Factors determining inter-individual variations in drug response Slide 19 To understand it by pharmacogenomics Slide 20 Size of the entire Human Genome = 3 Billion Bases The Human Genome Slide 21 Slide 22 Central dogma of flow of genetic information DNA (the human genome) RNA (the human transcriptome) Proteins (the human proteome) Multiple post-translational modifications: phosphorylations, acetylations, amidations, glycosylations, ubiquitinations, etc. Epigenetic control of gene expression Control by small RNAS Is the development of personalized drugs going to be straightforward? Here are some major obstacles Slide 23 What are the obstacles they appear to be broader and more complicated than just target identification and validation : 1.Many diseases (metabolic, psychiatric) are multi- genic, and the causative connection between the genes products is not clear. We are still missing a whole body of basic knowledge. 2.Malignancies are characterized by genomic instability and therefore targets are not stable 3.Human experimentation is complicated (HRT, stents) 4.Lack of faithful animal models (neurodegeneration, cancer, metabolic diseases) 5.Cost of developing new drugs - legal liability (Vioxx/Celebrex), markets (new antibiotics), and patents protection (AIDS - South Africa, India) 6.End of blockbuster drugs era 7.Bioethical problems of availability of genetic information </p>