CagA promotes proliferation and inhibits apoptosis of GES-1 cells by upregulating TRAF1/4-1BB.
CagA promotes proliferation and inhibits apoptosis of GES-1 cells by upregulating TRAF1/4-1BB.
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CagA通过上调TRAF1/4-1BB促进GES-1细胞增殖并抑制凋亡
DOI:
10.3892/mmr.2017.6757
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发表时间:
2017-08
影响因子:
3.4
通讯作者:
Yuan Y
中科院分区:
文献类型:
--
作者:
Wang F;Qu N;Peng J;Yue C;Yuan L;Yuan Y
Cytotoxin-associated gene A (CagA) is one of the most important virulence factors of Helicobacter pylori, and serves a role in H. pylori-mediated tumorigenesis in gastric cancer. However, the underlying molecular mechanism remains to be elucidated. The present study aimed to investigate the effects of CagA on the proliferation and apoptosis of GES-1 cells, and the underlying mechanism. A CagA eukaryotic expression plasmid was constructed and transfected into GES-1 cells. The mRNA and protein levels of CagA, tumor necrosis factor receptor-associated factor 1 (TRAF1) and tumor necrosis factor receptor superfamily member 9 (4–1BB) were determined using the reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively. Western blot and ELISA analysis was used to detect the release of interleukin (IL)-8. An MTT assay and flow cytometric analysis was used to assess cell viability and apoptosis, respectively. Ectopic expression of CagA markedly increased TRAF1 and 4-1BB mRNA and protein levels in GES-1 cells. CagA increased the expression and release of IL-8 in GES-1 cells. The expression of CagA significantly promoted the proliferation (P<0.05) and inhibited the apoptosis (P<0.05) of GES-1 cells. In conclusion, CagA upregulated TRAF1/4-1BB, thereby promoting the proliferation and inhibiting the apoptosis of GES-1 cells.
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影响因子:
4.6
作者:
Kim CM;Choi JY;Bhat EA;Jeong JH;Son YJ;Kim S;Park HH
通讯作者:
Park HH
影响因子:
--
作者:
Zhang BG;Hu L;Zang MD;Wang HX;Zhao W;Li JF;Su LP;Shao Z;Zhao X;Zhu ZG;Yan M;Liu B
通讯作者:
Liu B
影响因子:
7.7
作者:
Lamb, Acacia;Yang, Xiao-Dong;Chen, Lin-Feng
通讯作者:
Chen, Lin-Feng
影响因子:
4
作者:
Lamb, Acacia;Chen, Lin-Feng
通讯作者:
Chen, Lin-Feng
DOI:
10.1073/pnas.93.13.6721
发表时间:
1996-06-25
影响因子:
11.1
作者:
Song, HY;Rothe, M;Goeddel, DV
通讯作者:
Goeddel, DV