kshv-mir-k12-1-5p promotes cell growth and metastasis by targeting SOCS6 in Kaposi’s sarcoma cells

• Main Authors: Zhang J, Pu XM, Xiong Y
• Format: Article
• Language: English
• Published: Dove Medical Press 2019-05-01
• Series: Cancer Management and Research
• Subjects: kshv-mir-k12-1-5p; SOCS6; Kaposi's sarcoma
• Online Access: https://www.dovepress.com/kshv-mir-k12-1-5p-promotes-cell-growth-and-metastasis-by-targeting-soc-peer-reviewed-article-CMAR

Jing Zhang,1,2 Xiong-Ming Pu,3 Yan Xiong41Postgraduate College of Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China; 2Department of Pathology, Affiliated Traditional Chinese Medicine Hospital, Xinjiang Medical University, Urumqi, Xinjiang, People’s Republic of China; 3Department of Dermatology and Venereology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, People’s Republic of China; 4Department of Pathology, Peking University First Hospital, Beijing, People’s Republic of ChinaBackground: Kaposi’s sarcoma (KS) is a highly disseminated angiogenic tumour of endothelial cells. Many deregulated miRNAs, including kshv-mir-k12-1-5p, have been identified in KS. kshv-mir-k12-1-5p plays important roles in KS. However, the underlying mechanism is not fully understood. The aim of this study was to investigate the exact functions of kshv-mir-k12-1-5p in KS cells.Materials and methods: The biological functions of kshv-mir-k12-1-5p were studied using CCK-8, apoptosis, migration and invasion assays. Bioinformatics software was used to identify the target gene (SOCS6) of kshv-mir-k12-1-5p. A dual luciferase assay, Western blot (WB) and quantitative real-time polymerase chain reaction (q-PCR) were performed to further verify the target gene. The underlying molecular mechanisms of kshv-mir-k12-1-5p in KS cells were also explored.Results: kshv-mir-k12-1-5p can promote the proliferation, migration and invasion of KS cells and inhibit cell apoptosis. Suppressor of cytokine signalling 6 (SOCS6) was identified as a direct target of kshv-mir-k12-1-5p, and kshv-mir-k12-1-5p can downregulate SOCS6 expression. In addition, knockdown of SOCS6 rescued the effects of kshv-mir-k12-1-5p inhibitor. Hence, a direct relationship between kshv-mir-k12-1-5p and SOCS6 was confirmed.Conclusions: kshv-mir-k12-1-5p promotes the malignant phenotype of KS cells by targeting SOCS6, suggesting that kshv-mir-k12-1-5p could be a potential therapeutic target for KS.Keywords: kshv-mir-k12-1-5p, SOCS6, Kaposi’s sarcoma