Comparative proteomic study of the response to hypoxia in the muscle of oriental river prawn (Macrobrachium nipponense)
文献类型: 外文期刊
作者: Sun, Shengming 1 ; Xuan, Fujun; Fu, Hongtuo 1 ; Ge, Xianping 1 ; Zhu, Jian 1 ; Qiao, Hui 1 ; Jin, Shubo 1 ; Zhang, Yiw 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Genet Breeding & Aquaculture Biol Freshwa, Minist Agr, Wuxi 214081, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Genet Breeding & Aquaculture Biol Freshwa, Minist Agr, Wuxi 214081
关键词: Two-dimensional gel electrophoresis;Macrobrachium nipponense;Muscle;Hypoxia;MALDI-TOF/TOF
期刊名称:JOURNAL OF PROTEOMICS ( 影响因子:4.044; 五年影响因子:4.02 )
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收录情况: SCI
摘要: Adaptation to hypoxia is a complex process involving up- or down-regulation of numerous different proteins. In order to understand the molecular responses to hypoxia in crustacean muscle tissue, flow cytometry and oxidative stress analysis were used to explore the (hypoxia) physiological response on Macrobrachium nipponense. A 2D-gel-based proteomic approach was performed to compare the muscle proteome of hypoxic and normoxic M. nipponense. MALDI-TOF/TOF identified 15 and five proteins were significantly up- and down-regulated, respectively, in M. nipponense muscle under hypoxic conditions for 24 h. Five spots were confirmed as hemocyanin, indicating an important role in environmental regulation. Real-time quantitative PCR confirmed that hemocyanin, heat shock protein 70, glutathione S-transferases, metallothionein, phosphofructokinase, and pyruvate kinase 2 were all up-regulated by hypoxia stress. These results suggest that the cellular response to hypoxia involves regulating proteins that function in maintaining antioxidative capacity, energy levels and muscle structure. Western blotting confirmed that the well-known hypoxic stress markers hemocyanin and heat shock protein 70 were up-regulated. These results increase our understanding of hypoxia-induced proteomic and transcriptional changes in M. nipponense muscle tissue.
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