MicroRNA-195-5p inhibits the progression of hemangioma via targeting SKI

Exp Ther Med. 2022 Feb;23(2):165. doi: 10.3892/etm.2021.11088. Epub 2021 Dec 22.

Abstract

Hemangioma (HA), which is characterized by aberrant endothelial cell proliferation in blood vessels, is a common tumor during infancy. MicroRNAs (miRNAs/miRs) collectively participate in the development of HA; however, the potential roles of miR-195-5p in HA are not completely understood. The aim of the present study was to investigate the roles of miR-195-5p in HA. In the present study, miR-195-5p was found to be downregulated in HA cells, such as the XPTS-1 human infantile hemangioma-derived endothelial cell line and the EOMA hemangioendothelioma cell line. Overexpression of miR-195-5p was shown to suppress HA cell viability, colony formation and proliferation, and induced HA cell apoptosis. Furthermore, miR-195-5p downregulated Bcl-2 expression and upregulated Bax and Bcl-2 expression levels. V-ski sarcoma viral oncogene homolog (SKI) was identified as a target of miR-195-5p. Co-transfection of miR-195-5p mimics and SKI 3'-untranslated region wild-type decreased HA cell luciferase activity. SKI overexpression alleviated the miR-195-5p-induced decrease in HA cell proliferation and increased HA cell apoptosis. In addition, the regulatory role of miR-195-5p on the expression of Bcl-2, Bax and poly(ADP-ribose) polymerase was reversed by SKI. Collectively, the results of the present study demonstrated that miR-195-5p suppressed HA progression and its effects were mediated via SKI. Therefore, the miR-195-5p/SKI axis may represent a novel therapeutic target for HA.

Keywords: apoptosis; hemangioma; microRNA-195-5p; v-ski sarcoma viral oncogene homolog.

Grants and funding

Funding: The present study was supported by the National Natural Science Foundation (grant no. 81860321), the National Natural Science Foundation (grant no. 81660239), the Special Funds for the Central Government to Guide Local Science and Technology Development [grant no. QKZYD(2019)4008] and Guiyang Baiyun District Science and Technology Project (2019) (grant no. 36).