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Blockade of PGE2, PGD2 receptors confers protection against Prepatent schistosomiasis Mansoni in mice
Faculty
Pharmacy
Year:
2015
Type of Publication:
ZU Hosted
Pages:
511-520
Authors:
Walid Mohamed Adel Abdelaziem Abdallah Barakat
Staff Zu Site
Abstract In Staff Site
Journal:
Journal of the Egyptian Society of Parasitology The Egyptian Society of Parasitology
Volume:
3
Keywords :
Blockade , PGE2, PGD2 receptors confers protection
Abstract:
Schistosomiasis is a chronic disease with considerable social impact. Despite the availability of affordable chemotherapy, drug treatment has not significantly reduced the overall number of disease cases. Among other mechanisms, the parasite produces PGE2 and PGD2 to evade host immune defenses. To investigate the role of PGE2 and PGD2 in schistosomiasis, we evaluated the effects of L-161,982, Ah6809 (PGE2 receptor antagonists alone or combined with each other) and MK-0524 (PGD2 receptor antagonist) during prepatent Schistosoma mansoni infection. Drugs were administered intraperitoneally an hour before and 24 hours after infection of C57BL/6 mice with 100 Schistosoma mansoni cercariae. L-161,982, Ah6809, their combination and MK-0524 caused partial protection against pre-patent S. mansoni infection which was mediated by biasing the immune response towards Th1 phenotype. These results showed that blockade of PGE2 and PGD2 receptors confers partial protection against pre-patent S. mansoni infection in mice and that they may be useful as adjunctive therapy to current anti-schistosomal drugs or vaccines.
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