miR-4510 acts as a tumor suppressor in gastrointestinal stromal tumor by targeting APOC2.
APOC2
gastrointestinal stromal tumor
miR-4510
microRNA
proliferation
Journal
Journal of cellular physiology
ISSN: 1097-4652
Titre abrégé: J Cell Physiol
Pays: United States
ID NLM: 0050222
Informations de publication
Date de publication:
07 2020
07 2020
Historique:
received:
17
07
2019
accepted:
09
01
2020
pubmed:
25
1
2020
medline:
11
3
2021
entrez:
25
1
2020
Statut:
ppublish
Résumé
Dysregulation of microRNAs (miRNAs) expression has been demonstrated in gastrointestinal stromal tumor (GIST). In this study, we aimed to determine the differential miRNAs expression in GISTs and explore the functional mechanism of differential miRNAs in GIST cells. We measured differential miRNAs in six pairs of GIST tissues and matched adjacent tissues through a high-throughput sequencing, which was confirmed in 64 pairs of GIST tissues and adjacent tissues by real-time polymerase chain reaction. We found that miR-4510 expression was significantly downregulated in GIST tissues compared to matched control tissues. Luciferase reporter assay identified apolipoprotein C-II (APOC2) as a direct target of miR-4510. Overexpression of miR-4510 inhibited the mRNA and protein expression of APOC2. In addition, overexpression of miR-4510 suppressed GIST cell proliferation, migration, and invasion. Overexpression of miR-4510 also inhibited the phosphorylation of AKT and ERK1/2, reduced the expression of matrix metallopeptidase 2 (MMP2) and MMP9. APOC2 knockdown mimicked the effect of miR-4510 overexpression. Further investigation confirmed that APOC2 was notably upregulated in GIST tissues compared to adjacent control tissues. These results suggested that miR-4510 downregulation could promote GIST progression, including growth, invasion, and metastasis, through increasing APOC2 expression.
Substances chimiques
Apolipoprotein C-II
0
MicroRNAs
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
5711-5721Informations de copyright
© 2020 Wiley Periodicals, Inc.
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