Open AccessMicroRNA-30 inhibits the growth of human ovarian cancer cells by suppressing RAB32 expression
Author(s) -
Yan Zhang,
Min Zhou,
Kun Li
Publication year - 2022
Publication title -
international journal of immunopathology and pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.724
H-Index - 53
eISSN - 2058-7384
pISSN - 0394-6320
DOI - 10.1177/20587384211058642
Subject(s) - ovarian cancer , microrna , downregulation and upregulation , gene silencing , cancer research , cell growth , biology , viability assay , cancer cell , cancer , gentamicin protection assay , cell , metastasis , gene , biochemistry , genetics
MicroRNAs (miRs) exhibit the potential to act as therapeutic targets for the management of human cancers including ovarian cancer. The role of microRNA-30 (miR-30) via modulation of RAB32 expression has not been studied in ovarian cancer. Consistently, the present study was designed to characterize the molecular role of miR-30/RAB32 axis in human ovarian cancer.Methods Cell viability was determined by MTT assay. Expression analysis was carried out by qRT-PCR. Dual luciferase assay was used to confirm the interaction between miR-30 and RAB32. Scratch-heal and transwell chamber assays were used to monitor the cell migration and invasion. Western blotting and immunofluorescence assays were used to determine the protein expression.Results The results revealed significant ( p < 0.05) downregulation of miR-30 in human ovarian cancer cell lines. Overexpression of miR-30 in ovarian SK-OV-3 and A2780 cancer cells significantly ( p < 0.05) inhibited their proliferation. Besides, ovarian cancer cells overexpressing miR-30 showed significantly ( p < 0.05) lower migration and invasion. The miR-30 upregulation also altered the expression pattern of marker proteins of epithelial–mesenchymal transition in ovarian cancer cells. In silico analysis predicted RAB32 as the molecular target of miR-30 at post-transcriptional level. The silencing of RAB32 mimicked the tumor-suppressive effects of miR-30 overexpression in ovarian cancer cells. Nonetheless, overexpression of RAB32 could prevent the tumor-suppressive effects of miR-30 on SK-OV-3 and A2780 cancer cells.Conclusion Taken together, the results suggest the tumor-suppressive role of miR-30 and point towards the therapeutic utility of miR-30/RAB32 molecular axis in the management of ovarian cancer