期刊
FISH & SHELLFISH IMMUNOLOGY
卷 118, 期 -, 页码 396-404出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fsi.2021.09.030
关键词
Epinephelus coioides; Hsp40; Vibrio alginolyticus; SGIV; Apoptosis
资金
- National Natural Science Foundation of China [31930115, 31772877, 31330082, 41876162, 41706186]
- National key research and development plan subject [2019YFD0900801, 2020YFD0901104]
- Marine Fisheries Bureau Key funds and marine projects [GDME-2018C002]
- National Key R&D Program of China [2018YFC0311300, 2018YFD0900501, 2018YFC0311302]
- China Agricultural Research System [CARS-47-G16]
- China Modern Agricultural Industry Technology System (The Control of Parasites Infection on Marine Fish) [CARS-47-18]
- foundation of key Laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences [2019011008]
- Hainan Key Laboratory of Tropical Marine Biotechnology [LTMB201902]
Heat shock protein 40 (Hsp40), a member of the Heat shock proteins (Hsps) family, plays a crucial role in regulating cell proliferation, survival, and apoptosis in marine-cultured fish. The expression of EcHsp40 in Epinephelus coioides is significantly up-regulated in response to bacterial or viral challenges, suggesting its involvement in pathogenic stimulation-induced apoptosis and viral replication.
Heat shock protein 40 (Hsp40), a member of Heat shock proteins (Hsps) family, plays a crucial role in regulation of cell proliferation, survival and apoptosis in mammals. In this study, Hsp40, EcHsp40, was identified from Epinephelus coioides, an economically important marine-cultured fish in China and Southeast Asian counties. The full length of EcHsp40 was 2236 bp in length containing a 1026 bp open reading frame (ORF) encoding 341 amino acids, with a molecular mass of 37.88 kDa and a theoretical pI of 9.09. EcHsp40 has two conserved domains DnaJ and DnaJ_C. EcHsp40 mRNA was detected in all tissues examined, and the expression was significantly up-regulated response to challenged with Vibrio alginolyticus or Singapore grouper iridovirus (SGIV), one of the important pathogens of marine fish. EcHsp40 was distributed in both the cytoplasm and nucleus, over -expression of EcHsp40 can inhibit the activity of nuclear factor-Kappa B (NF-Kappa B) and activator protein-1 (AP-1), significantly promote SGIV-induced apoptosis, intracellular caspase-3 activity and viral replication, suggesting that the EcHsp40 may play an important role in pathogenic stimulation.
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