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Long noncoding RNA LINC00857 promotes pancreatic cancer proliferation and metastasis by regulating the miR-130b/RHOA axis

Authors :
Peng Chen
Zhirui Zeng
Jie Wang
Wenpeng Cao
Chunzhuo Song
Shan Lei
Yichuan Li
Zhangxia Ren
Source :
Cell Death Discovery, Vol 8, Iss 1, Pp 1-13 (2022)
Publication Year :
2022
Publisher :
Nature Publishing Group, 2022.

Abstract

Abstract Dysregulation of long noncoding RNAs (lncRNAs) is involved in the pathogenesis and progression of pancreatic cancer (PC). In the current study, we investigated the role and molecular mechanism of LINC00857 in PC. The expression of LINC00857 in PC was analyzed by bioinformatics analysis and qRT-PCR, and the relationship between LINC00857 expression and clinical characteristics of patients of PC was analyzed by Fisher’s exact test. Gain- and loss-of-function assays were performed to determine the biological function of LINC00857 in PC. The relationship between LINC00857, miR-130b, and RHOA were determined by RNA pull-down assay, luciferase assay, and qRT-PCR. Our results demonstrated that LINC00857 expression was elevated in PC, and high expression of LINC00857 was positively associated with tumor diameter, T stage, and lymph node metastasis. LINC00857 promoted the proliferation and mobility of PC cells in vitro and in vivo. Mechanistically, LINC00857 acts as a sponge for miR-130b and decreases its expression. miR-130b exhibits tumor suppressor functions in PC, and RHOA was identified as the key target gene of miR-130b. The functions induced by LINC00857 in PC cells were dependent on the miR-130b/RHOA axis. In conclusion, the current study indicated that LINC00857 promotes PC tumorigenesis and metastasis by modulating the miR-130b/RHOA axis, implying that LINC00857 might be a new therapeutic target for PC.

Details

Language :
English
ISSN :
20587716
Volume :
8
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Cell Death Discovery
Publication Type :
Academic Journal
Accession number :
edsdoj.b2b69f4717a948a49d873aadf780ec0b
Document Type :
article
Full Text :
https://doi.org/10.1038/s41420-022-01008-2