Journal
PARASITOLOGY
Volume 143, Issue 12, Pages 1629-1638Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182016001128
Keywords
corilagin; IL-13; schistosomiasis; liver fibrosis
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Funding
- China National Natural Science Fund [81371840, 30901248]
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Interleukin (IL)-13-associated signal pathway plays an important role in schistosomiasis hepatic fibrosis. In this study we tried to investigate the effects of corilagin to ameliorate schistosomiasis hepatic fibrosis through regulating IL-13-associated signal pathway in vitro and in vivo. Cellular model was set up with hepatic stellate cells-T6 cells stimulated by rIL-13 and male Balb/c mice were infected with Schistosoma japonicum cercariaeas as animal model. Liver histological changes were observed with haematoxylin and eosin staining. Masson staining was employed to observe the change of egg granulomas. Expression of Col (collagen) and Col III were examined with Immunohistochemistry. Western bolt was employed to detect the JAK-1 and IL13R1 proteins. The mRNA expression of Col I, Col III, IL-13, JAK-1 and IL13R1 were tested by quantitative polymerase chain reaction. As a result, less inflammatory changes were found in all corilagin groups compared with model group and praziquantel group. The mRNA levels of Col I, Col III, IL-13, JAK-1 and IL13R1 were significantly decreased after corilagin intervention (P<001). JAK-1 and IL-13R1 protein levels were also greatly decreased in the corilagin groups (P<001). In conclusion, corilagin could ameliorate schistosomiasis hepatic fibrosis by down-regulating the expression of IL-13 and signal molecules in IL-13 pathway.
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