Molecular characterization of SjBIRP, another apoptosis inhibitor, from Schistosoma japonicum

文献类型： 外文期刊

第一作者： Dao, Jinwei

作者： Dao, Jinwei;Zhu, Lihui;Luo, Rong;Hu, Chao;Wang, Yuqing;Li, Hao;Lu, Ke;Liu, Jinming;Lin, Jiaojiao;Cheng, Guofeng;Dao, Jinwei;Cheng, Guofeng

作者机构：

关键词： Apoptosis;Inhibitor of apoptosis protein;Schistosoma japonicum;Development;Drug target

期刊名称：PARASITOLOGY RESEARCH （ 影响因子：2.289； 五年影响因子：2.403 ）

ISSN： 0932-0113

年卷期： 2014 年 113 卷 11 期

页码：

收录情况： SCI

摘要： Inhibitor of apoptosis proteins (IAP) play an important role in the regulation of apoptotic processes and are defined by the presence of baculoviral IAP repeat (BIR) domains. Here, we characterized a cDNA fragment (SjBIRP) synthesized from the RNA of Schistosoma japonicum, which was found to contain the BIR domain, suggesting that it could encode a potential IAP. Real-time PCR analyses indicated that SjBIRP transcription was detected at several stages of the schistosome's lifecycle, with increased levels present in schistosomula (7 days). In addition, the SjBIRP was highly expressed in adult females as compared to adult males. A functional assay showed that SjBIRP could inhibit caspase3/7 activity in both HeLa cells and schistosome lysates. Furthermore, SjBIRP expression profiles varied between different hosts of S. japonicum. Taken together, our preliminary studies suggest that SjBIRP may play a functional role in the regulation of apoptosis in schistosomes, and that it could be a potential drug target for schistosomiasis control.

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