Involvement of NF-κB signaling pathway in the regulation of PRKAA1-mediated tumorigenesis in gastric cancer

被引:19
作者
Zhang, Yangmei [1 ]
Zhou, Xichang [2 ]
Zhang, Qinglin [3 ]
Zhang, Youwei [1 ]
Wang, Xiang [1 ]
Cheng, Long [2 ]
机构
[1] Xuzhou Med Univ, Xuzhou Cent Hosp, Dept Oncol, 199 South Jiefang Rd, Xuzhou 221000, Jiangsu, Peoples R China
[2] Xuzhou Med Univ, Xuzhou Cent Hosp, Dept Canc Diag & Treatment Ctr, 199 South Jiefang Rd, Xuzhou 221000, Jiangsu, Peoples R China
[3] Xuzhou Med Univ, Xuzhou Cent Hosp, Dept Cent Lab, Xuzhou, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Gastric cancer; PRKAA1; migration; invasion; NF-kappa Bp50; HELICOBACTER-PYLORI; TUMOR-SUPPRESSOR; DOWN-REGULATION; CELLS; AMPK; KINASE; METASTASIS; ACTIVATION; EXPRESSION; INVASION;
D O I
10.1080/21691401.2019.1657876
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
AMP-activated alpha 1 catalytic subunit (PRKAA1) is one of the subunits of the mammalian 5 '-AMP-activated protein kinase (AMPK) playing an important role in maintaining intracellular energy metabolism and associating with the risk of gastric cancer (GC). This paper aims to uncover the influences of PRKAA1 on the tumorigenesis of GC, as well as the underlying mechanisms. We found that Helicobacter pylori (H. pylori) infection markedly increased p-NF-kappa Bp50 and NF-kappa Bp50 expression, along with the PRKAA1 expression, which was inhibited by NF-kappa Bp50 knockdown. NF-kappa Bp50 and PRKAA1 expression were lower in non-tumor gastric tissues compared with that in GC tumor tissues. Up-regulation of PRKAA1 expression was correlated with poor survival in GC patients. MKN-45 and BGC-823 cells stably knockdown of PRKAA1 were transplanted into nude mice and observed the decreased cell metastasis in the lungs. PRKAA1 knockdown in GC cells showed significant decreases in the cell invasion and migration and inhibited MMP-2 expression and NF-kappa B activation, whereas PRKAA1 involved in NF-kappa Bp50 mediated GC cell invasion and migration. In conclusion, our findings suggest the involvement of NF-kappa Bp50 in the regulation of PRKAA1 in GC tumorigenesis.
引用
收藏
页码:3677 / 3686
页数:10
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