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He, Libo; Wang, Hao; Luo, Lifei; Li, Yongming; Huang, Rong; Liao, Lanjie; Zhu, Zuoyan; Wang, Yaping (2017)
Publisher: Impact Journals LLC
Journal: Oncotarget
Languages: English
Types: Article
Subjects: grass carp reovirus, grass carp, apoptosis, Bid, rare minnow, Research Paper

Classified by OpenAIRE into

mesheuropmc: biological phenomena, cell phenomena, and immunity, neoplasms, heterocyclic compounds, urologic and male genital diseases, digestive system diseases
Bid, BH3-interacting domain death agonist, is a pro-apoptotic BH3-only member of Bcl-2 family, playing an important role in apoptosis. In the study, Bid genes from grass carp (Ctenopharyngodon idellus) and rare minnow (Gobiocypris rarus), named CiBid and GrBid, were cloned and analyzed. Bid was constitutively expressed in all examined tissues of grass carp, but the expression level varied in different tissues. Following grass carp reovirus (GCRV) stimulation in vivo, Bid and apoptosis related genes Caspase-9 and Caspase-3 was up-regulated significantly at the late stage of infection. Moreover, we generated a Bid-deficient rare minnow (Bid -/-) to investigate the possible role of Bid in GCRV-triggered apoptosis. We found that the survival time of Bid -/- rare minnow after GCRV infection was extended when compared with wild-type fish, the relative copy number of GCRV in Bid -/- rare minnow was lower than that in wild-type fish, and the expression level of Caspase-9 and Caspase-3 in Bid -/- rare minnow were significantly lower than that in the wild-type fish. Collectively, the current data revealed the important role of Bid during virus-induced apoptosis in teleost fish. Our study would provide new insight into understanding the GCRV induced apoptosis and may provide a target gene for virus-resistant breeding in grass carp.

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