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LncRNA-PAGBC Acts as a microRNA Sponge and Promotes Gallbladder Tumorigenesis

LncRNA-PAGBC Acts as a microRNA Sponge and Promotes Gallbladder Tumorigenesis

Xiang-Song Wu, Fang Wang, Huai-Feng Li, Yun-Ping Hu, Lin Jiang, Fei Zhang, Mao-Lan Li, Xu-An Wang, Yun-Peng Jin, Yi-Jian Zhang, Wei Lu, Wen-Guang Wu, Yi-Jun Shu, Hao Weng, Yang Cao, Run-Fa Bao, Hai-Bin Liang, etc.

EMBO Rep. 2017 Oct;18(10):1837-1853.

PMID: 28887321

Abstract:

Long noncoding RNAs (lncRNAs) play roles in the development and progression of many cancers; however, the contributions of lncRNAs to human gallbladder cancer (GBC) remain largely unknown. In this study, we identify a group of differentially expressed lncRNAs in human GBC tissues, including prognosis-associated gallbladder cancer lncRNA (lncRNA-PAGBC), which we find to be an independent prognostic marker in GBC Functional analysis indicates that lncRNA-PAGBC promotes tumour growth and metastasis of GBC cells. More importantly, as a competitive endogenous RNA (ceRNA), lncRNA-PAGBC competitively binds to the tumour suppressive microRNAs miR-133b and miR-511. This competitive role of lncRNA-PAGBC is required for its ability to promote tumour growth and metastasis and to activate the AKT/mTOR pathway. Moreover, lncRNA-PAGBC interacts with polyadenylate binding protein cytoplasmic 1 (PABPC1) and is stabilized by this interaction. This work provides novel insight on the molecular pathogenesis of GBC.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42410708	Tissue protein, cytoplasmic			Price

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