期刊
CELL BIOCHEMISTRY AND FUNCTION
卷 38, 期 1, 页码 58-65出版社
WILEY
DOI: 10.1002/cbf.3449
关键词
LOXL1-AS1; miR-28-5p; pancreatic cancer; SEMA7A
Pancreatic cancer (PC), one of the most aggressive and lethal human malignancies, is associated with a deplorable prognosis despite progressive therapeutic strategies. Emerging evidence manifests that miR-28-5p is involved in several cancers, and its descending expression is associated with poor prognosis. Nevertheless, the function of miR-28-5p in PC remains unclear. Thus, the underlying regulatory mechanism of miR-28-5p in PC is urgent to be clarified. In the present study, we first recognized miR-28-5p was downregulated in PC, and miR-28-5p overexpression inhibited cell proliferation and migration in PC. Then miR-28-5p was verified to act as a molecular sponge of LOXL1-AS1. Therefore, the function of LOXL1-AS1 was further explored in PC, presenting that LOXL1-AS1 suppression inhibited cell proliferation and migration. What is more, SEMA7A was found to be a target gene for miR-28-5p and was upregulated in PC. In addition, LOXL1-AS1 could positively regulate SEMA7A expression while miR-28-5p could negatively regulate SEMA7A expression. According to rescue experiments, SEMA7A overexpression partially neutralized LOXL1-AS1 silence-mediated inhibitory function on progression in PC. Taken together, all the data demonstrated that LOXL1-AS1/miR-28-5p/SEMA7A axis facilitated pancreatic cancer progression, which may be regarded as an innovative therapeutic target for PC treatment. Significance of the study Our findings constitute the first report to delineate that lncRNA LOXL1-AS1/miR-28-5p/SEMA7A axis facilitates PC progression. According to our experimental results, we found the expression of miR-28-5p was downregulated in PC cells and miR-28-5p overexpression inhibited cell proliferation and migration in PC. LOXL1-AS1 could sponge miR-28-5p and then upregulate the expression of SEMA7A. Thus, LOXL1-AS1/miR-28-5p/SEMA7A axis facilitated PC progression. This initially proposed point might provide a novel molecular target for PC treatment.
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