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12. MUCOSAL IMMUNITY. 13. TRANSPLANTATION.

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Presentation on theme: "12. MUCOSAL IMMUNITY. 13. TRANSPLANTATION."— Presentation transcript:

1 12. MUCOSAL IMMUNITY

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9 13. TRANSPLANTATION

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20 14. ANTI-TUMOUR IMMUNITY

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27 15. REGULATION OF IMMUNE RESPONSES

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34 MECHANISMS OF Treg

35 DEVELOPMENT AND SELECTION IN THYMUS – ALSO Treg!!!

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42 BASIC DOGMA OF THE ADAPTIVE RESPONSE: ANTIBODY RESPONSES (B, Th2) – EFFECTIVE AGAINST EXTRACELLULAR PARASITES INFLAMMATORY RESPONSES (Th1, Tc) – EFFECTIVE AGAINST INTRACELLULAR PARASITES MUTUAL COMPETITION Th1 vs. Th2 (REGULATION BY POSITIVE FEEDBACK) WRONG CHOICE OF THE Th1 vs. Th2 RESPONSE CAN BE FATAL (LEPROSY…)

43 Th1 x Th2 („they don’t like each other …“) IFN  vs. IL-4

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45 16. IMMUNOPATOLOGIC REACTIONS - ALLERGIES

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52 Incidence of prototypical infectious diseases and immune disorders 1950 to 2000 N Engl J Med, Vol 347, No. 12, 09/2002

53 HUGE INCREASE OF ALLERGIES AS „CIVILIZATION DISEASES“ Epidemiological studies - hygienic hypothesis: Early childhood on a (primitive) farm (mycobacteria, LPS?) Intestinal parasites Breast feeding Non/pasteurized milk “Good” intestinal flora Hepatitis A Diesel exhaust particles? Life style in general (DDR vs. FRG, Turkish immigrants, anthroposophy..)

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62 17. IMMUNOPATOLOGIC AUTOIMMUNE REACTIONS

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65 DiseaseAutoantibodies to Systemic lupus erythematodesNuclear antigens; blood elements Rheumatoiod arthritis Fc-fragments of immunoglobulins ("rheumatoid factor") DermatopolymyositisExtractable nuclear antigens Jo-1, PM/Scl Sjögren’s diseaseExtractable nuclear antigens (SS-A, SS-B) Systemic sclerodermyExtractable nuclear antigens (Scl-70) Anti/phospholipide syndromPhospholipids Some vasculitisCytoplasmatic antigens of neutrophils

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67 DiseaseHLARelative risk* Ankylosing spondyloarthritis (Bechterev disease) B2787.4 Uveitis B2710 Goodpasture syndrom DR215.9 Multiple sclerosis DR24.8 Graves-Basedow disease DR33.7 Systemic lupus erythematodes DR35.8 Myasthenia gravis DR32.5 Pemphigus DR414.4 Rheumatoid arthritis DR44.2 Hashimotova thyreoiditis DR53.2

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69 18. IMMUNODEFICIENCIES

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75 Nu/nu mouse (athymic)

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85 19. IMMUNOPROPHYLAXIS AND IMMUNOTERAPY

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94 MARKED SUCCESS – THERAPEUTIC MONOCLONAL ANTIBODIES: Discovery 1976, Nobel prize 1984. Not patented… >15 years technical difficulties in therapeutic uses Last cca 10 years – huge progress (humanized mAb), most dynamic field of pharmaceutic industry, sales over 20 billion USD per year… Cca 30 approved by FDA, other cca 100 under testing

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98 HOPEFULLY IN FUTURE: - BETTER VACCINES (HIV, WEAK AND TUMOR ANTIGENS?) - BETTER IMMUNOSUPPRESSION (AUTOIMMUNE DISEASES, ALLERGIES, TRANSPLANTATION) - EFFECTIVE IMMUNOTHERAPIES OF TUMOURS (A WEAK SPOT OF IMMUNITY…)

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