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Molecular characterization and expression analysis of interleukin-15 (IL-15) genes in orange-spotted grouper (Epinephelus coioides) in response to Vibrio harveyi challenge
被引:2
|作者:
Wu, Fan
[1
,2
,3
,4
]
Wang, Zhiwen
[1
,2
,3
,4
]
Yang, Guanjian
[1
,2
,3
,4
]
Jian, Jichang
[3
,4
]
Lu, Yishan
[1
,2
,3
,4
]
机构:
[1] Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518120, Peoples R China
[2] Guangdong Prov Engn Res Ctr Aquat Anim Hlth Assess, Shenzhen 51820, Peoples R China
[3] Guangdong Ocean Univ, Coll Fishery, Zhanjiang 524025, Peoples R China
[4] Guangdong Prov Key Lab Aqua Anim Dis Control & Hlt, Zhanjiang 524025, Peoples R China
关键词:
IL15;
Orange-spotted grouper;
Vibrio harveyi;
T-CELLS;
INTERFERON-GAMMA;
HUMAN MONOCYTES;
MESSENGER-RNA;
CLONING;
ALPHA;
IDENTIFICATION;
HOMEOSTASIS;
(IL)-15;
BIOLOGY;
D O I:
10.1016/j.fsi.2022.08.003
中图分类号:
S9 [水产、渔业];
学科分类号:
0908 ;
摘要:
As a member of the gamma c family, interleukin 15 plays an important function in the immune response. In this study, we cloned an IL15 from Epinephelus coioides (named Ec-IL15). The open reading frame of Ec-IL15 is 528 bp, encoding 175 amino acids. Sequence alignment analysis showed that EcIL-15 has a conserved Pfam: IL15 domain and four cysteine residues. Subcellular localization studies have shown that Ec-IL15 is distributed in whole cells. In healthy groupers, Ec-IL15 was expressed in all 11 tissues tested and the highest in liver. After ConA, PHA, LPS and poly I:C stimulation, Ec-IL15 expression of HKLs was significantly upregulated. After V. harveyi infection, the expression of Ec-IL15 in 9 tissues was significantly upregulated and peaked within 48 h. In addition, recombinant Ec-IL15 protein can not only stimulate HKLs proliferation and cytokine expression, but also has the potential as an immune enhancer.
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页码:327 / 334
页数:8
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