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Infection of parasite nematodes confounds vaccination efficacy (Urban et al. 2007) Journal Club of Veterinary Medicine, 18 October 2007.

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Presentation on theme: "Infection of parasite nematodes confounds vaccination efficacy (Urban et al. 2007) Journal Club of Veterinary Medicine, 18 October 2007."— Presentation transcript:

1 Infection of parasite nematodes confounds vaccination efficacy (Urban et al. 2007) Journal Club of Veterinary Medicine, 18 October 2007

2 If you want to be innovative? The get rid of the laid back attitude! It has to hurt a little to participate in an innovation project. If it is too fun and cozy, it does not move, concludes a ph.d.-dissertation. Ingeniøren, 13 October 2007

3 Immune System

4 Adaptive Immune System

5 T-cell development

6 Cytokines can prime of T helper cells development INF  IL12 TNF  IL4 IL13 IL10 Th0 Th1 Th2 IntracellularExtracellular

7 “Infection of parasite nematodes confounds vaccination efficacy” (Urban et al. 2007) Veterinary Parasitology. 2007 August 19; 148(1): 14-20 + Vaccination Cytokines Antibodies (IgG1, IgG2) Challenge (2nd vaccination) General vaccination strategy

8 “Infection of parasite nematodes confounds vaccination efficacy” (Urban et al. 2007) Veterinary Parasitology. 2007 August 19; 148(1): 14-20 + VaccinationChallenge (2nd vaccination) + Nematode Heligomosomoides polygyrus Plasmodium yoelii (malaria antigen, mice) IL3 IL4 IL5 IL9 IL13 IgG1 & IgE INF  IL4 IL13 IL10 TGF  Mouse model

9 “Infection of parasite nematodes confounds vaccination efficacy” (Urban et al. 2007) Veterinary Parasitology. 2007 August 19; 148(1): 14-20 + NematodeVaccinationChallenge (2nd vaccination) Ascaris suumMycoplasma hyopneumonia (commercial killed vaccine) + Weak Th1 (lungs) Th2 (intestine) 33% specific antibody response to M. Hyopnemonia. Serum conversion did not exceed 78 %. More lung pathology Pig model

10 Parasitic infections as medicine Chron’s Disease (regional interitis) An inflammatory bowel disease Th1-dominated Autoimmune disease Th2

11 Thank you for listning!


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