MicroRNA-575 regulates development of gastric cancer by targeting PTEN
MicroRNA-575 (miR-575) is oncogene in many tumors. However, the role of miR-575 in the progression of gastric cancer (GC) is still unknown. The aim of this study was to identify whether miR-575 play a role in the development of GC. We obtained GC cell lines, GC tissues from 40 patients to measure th...
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doaj-400fd5f174dd47d9a8acb52bd59ecc752021-05-20T07:37:24ZengElsevierBiomedicine & Pharmacotherapy0753-33222019-05-01113MicroRNA-575 regulates development of gastric cancer by targeting PTENYa-nan Wang0Fang Xu1Pei Zhang2Pan Wang3Ya-ning Wei4Chen Wu5Shu-jie Cheng6Department of Pathology, Affiliated Hospital of Hebei University, 071000, Baoding, ChinaDepartment of Pathology, Affiliated Hospital of Hebei University, 071000, Baoding, ChinaDepartment of Pathology, Affiliated Hospital of Hebei University, 071000, Baoding, ChinaDepartment of Pathology, Affiliated Hospital of Hebei University, 071000, Baoding, ChinaDepartment of Oncology, Affiliated Hospital of Hebei University, 071000, Baoding, ChinaCollege of Life Sciences, Hebei University, 071000, Baoding, ChinaDepartment of Surgery, Affiliated Hospital of Hebei University, 071000, Baoding, China; Corresponding author at: Department of Surgery, Affiliated Hospital of Hebei University, No. 212 East Yuhua Road, 071000, Baoding, China.MicroRNA-575 (miR-575) is oncogene in many tumors. However, the role of miR-575 in the progression of gastric cancer (GC) is still unknown. The aim of this study was to identify whether miR-575 play a role in the development of GC. We obtained GC cell lines, GC tissues from 40 patients to measure the levels of miR-575 and its predicted target PTEN by using RT‑PCR, immunohistochemistry or western blot analysis. MGC-803 cells were transfected with miR-575 inhibitor, and cells viability and apoptosis were measured. miR-575 aberrantly up-regulated in GC tissues and GC cell lines compared with corresponding control. In cell lines, MGC‑803 expressed highest level of miR-575 among the tested cells. The level of miR-575 was correlated with the tumor size, AJCC stage and prognosis, but not with the other clinical parameters. Knockdown of miR-575 inhibited proliferation and promoted apoptotic death of MGC-803 cells both in vitro and vivo. PTEN levels (both mRNA and protein) were remarkably decreased in cancer tissues compared with the paired-adjacent tissues, and negatively correlated with miR-575 in the tissues. By using luciferase reporter assay, we found PTEN was a direct downstream target of miR-575, and negatively regulated by miR-575 via targeting its 3′UTR. Knockdown or overexpression of miR-575 in MGC-803 cells negatively regulated PTEN expression. Finally, silencing PTEN partially impaired anti-proliferative effects of miR-575 inhibitor. miRNA-575 serves a pivotal role in GC as a cancer promoter gene by targeting PTEN to regulate proliferation and apoptosis of the cancer cells.http://www.sciencedirect.com/science/article/pii/S0753332219300022Gastric cancermicroRNA-575PTENProliferationApoptosis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ya-nan Wang Fang Xu Pei Zhang Pan Wang Ya-ning Wei Chen Wu Shu-jie Cheng |
spellingShingle |
Ya-nan Wang Fang Xu Pei Zhang Pan Wang Ya-ning Wei Chen Wu Shu-jie Cheng MicroRNA-575 regulates development of gastric cancer by targeting PTEN Biomedicine & Pharmacotherapy Gastric cancer microRNA-575 PTEN Proliferation Apoptosis |
author_facet |
Ya-nan Wang Fang Xu Pei Zhang Pan Wang Ya-ning Wei Chen Wu Shu-jie Cheng |
author_sort |
Ya-nan Wang |
title |
MicroRNA-575 regulates development of gastric cancer by targeting PTEN |
title_short |
MicroRNA-575 regulates development of gastric cancer by targeting PTEN |
title_full |
MicroRNA-575 regulates development of gastric cancer by targeting PTEN |
title_fullStr |
MicroRNA-575 regulates development of gastric cancer by targeting PTEN |
title_full_unstemmed |
MicroRNA-575 regulates development of gastric cancer by targeting PTEN |
title_sort |
microrna-575 regulates development of gastric cancer by targeting pten |
publisher |
Elsevier |
series |
Biomedicine & Pharmacotherapy |
issn |
0753-3322 |
publishDate |
2019-05-01 |
description |
MicroRNA-575 (miR-575) is oncogene in many tumors. However, the role of miR-575 in the progression of gastric cancer (GC) is still unknown. The aim of this study was to identify whether miR-575 play a role in the development of GC. We obtained GC cell lines, GC tissues from 40 patients to measure the levels of miR-575 and its predicted target PTEN by using RT‑PCR, immunohistochemistry or western blot analysis. MGC-803 cells were transfected with miR-575 inhibitor, and cells viability and apoptosis were measured. miR-575 aberrantly up-regulated in GC tissues and GC cell lines compared with corresponding control. In cell lines, MGC‑803 expressed highest level of miR-575 among the tested cells. The level of miR-575 was correlated with the tumor size, AJCC stage and prognosis, but not with the other clinical parameters. Knockdown of miR-575 inhibited proliferation and promoted apoptotic death of MGC-803 cells both in vitro and vivo. PTEN levels (both mRNA and protein) were remarkably decreased in cancer tissues compared with the paired-adjacent tissues, and negatively correlated with miR-575 in the tissues. By using luciferase reporter assay, we found PTEN was a direct downstream target of miR-575, and negatively regulated by miR-575 via targeting its 3′UTR. Knockdown or overexpression of miR-575 in MGC-803 cells negatively regulated PTEN expression. Finally, silencing PTEN partially impaired anti-proliferative effects of miR-575 inhibitor. miRNA-575 serves a pivotal role in GC as a cancer promoter gene by targeting PTEN to regulate proliferation and apoptosis of the cancer cells. |
topic |
Gastric cancer microRNA-575 PTEN Proliferation Apoptosis |
url |
http://www.sciencedirect.com/science/article/pii/S0753332219300022 |
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1721435316602011648 |