An insulin-like growth factor homologue of Singapore grouper iridovirus modulates cell proliferation, apoptosis and enhances viral replication.
An insulin-like growth factor homologue of Singapore grouper iridovirus modulates cell proliferation, apoptosis and enhances viral replication.
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新加坡石斑鱼虹彩病毒的胰岛素样生长因子同源物可调节细胞增殖、凋亡并增强病毒复制。
DOI:
10.1099/vir.0.056135-0
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发表时间:
2013-12
影响因子:
3.8
通讯作者:
Qin, Qiwei
中科院分区:
文献类型:
--
作者:
Li, Jun;Huang, Xiaohong;Wei, Jingguang;Qin, Qiwei
Insulin-like growth factors (IGFs) play crucial roles in regulating cell differentiation, proliferation and apoptosis. In this study, a novel IGF homologue gene (IGF-like) encoded by Singapore grouper iridovirus (SGIV) ORF062R (termed SGIV-IGF), was cloned and characterized. The coding region of SGIV-IGF is 771 bp in length, with a variable number of tandem repeats (VNTR) locus at the 3'-end. We cloned one isoform of this novel gene, 582 bp in length, containing the predicted IGF domain and 3.6 copy numbers of the 27 bp repeat unit. SGIV-IGF was an early transcribed gene during viral infection, and SGIV-IGF was distributed predominantly in the cytoplasm with a diffused granular appearance. Intriguingly, overexpression of SGIV-IGF was able to promote the growth of grouper embryonic cells (GP cells) by promoting G1/S phase transition, which was at least partially dependent on its 3'-end VNTR locus. Furthermore, viral titre assay and real-time quantitative PCR (RT-qPCR) analysis proved that SGIV-IGF could promote SGIV replication in grouper cells. In addition, overexpression of SGIV-IGF mildly facilitated apoptosis in SGIV-infected non-host fathead minnow (FHM) cells. Together, our study demonstrated a novel functional gene of SGIV which may regulate viral replication and cellular processes through multiple mechanisms that appear to be cell type-dependent.
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影响因子:
4.5
作者:
de Koning AP;Gu W;Castoe TA;Batzer MA;Pollock DD
通讯作者:
Pollock DD
影响因子:
3.8
作者:
Yoon SL;Jung SI;Do EJ;Lee SR;Lee SY;Chu IS;Kim WJ;Jung J;Kim CS;Cheon SH;Leem SH
通讯作者:
Leem SH
影响因子:
4.7
作者:
Cui, Huachun;Yan, Yang;Qin, Qiwei
通讯作者:
Qin, Qiwei
影响因子:
4.8
作者:
Dupont, J;Karas, M;LeRoith, D
通讯作者:
LeRoith, D
影响因子:
8.2
作者:
M. Ren;X. Zhong;Chun-yan Ma;Ying Sun;Q. Guan;B. Cui;Jun Guo;Hai Wang;Ling Gao;Jiajun Zha
通讯作者:
M. Ren;X. Zhong;Chun-yan Ma;Ying Sun;Q. Guan;B. Cui;Jun Guo;Hai Wang;Ling Gao;Jiajun Zha