Department of Interventional Therapy, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China.
Department of Catheterization Room, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China.
Neoplasma. 2022 Jan;69(1):136-144. doi: 10.4149/neo_2021_210815N1158. Epub 2021 Dec 10.
LncRNAs exert comprehensive effects in regulating the initiation and deterioration of hepatocellular carcinoma (HCC). However, the specific expression profiles and functional mechanisms of LINC00536 in HCC need to be disclosed. The study is intended to clarify the leverage of LINC00536 in HCC and investigate the potential mechanisms for the regulatory role of LINC00536 in the progression of HCC. In our study, LINC00536 was overexpressed in tumor samples of HCC patients and was related to poor prognosis. LINC00536 knockdown impaired cell viability, proliferation, migration, and invasion. LINC00536 can directly bind with miR-203b-5p, trimming the miR-203b-5p expression levels. VEGFA designates as a target of miR-203b-5p. Rescue research indicated that the miR-203b-5p inhibition or VEGFA overexpression could reverse the impaired cell phenotypes induced by LINC00536 knockdown. The in vivo experiments upheld the LINC00536/miR-203b-5p/VEGFA axis in HCC. Conclusively, LINC00536 could promote HCC deterioration via tuning the miR-203b-5p/VEGFA axis. This research may provide theoretical evidence for LINC00536 to get a gratifying therapeutic target for HCC.
LncRNAs 对调控肝细胞癌(HCC)的发生和恶化具有全面的影响。然而,LINC00536 在 HCC 中的具体表达谱和功能机制仍需阐明。本研究旨在阐明 LINC00536 在 HCC 中的作用,并探讨 LINC00536 对 HCC 进展的调控作用的潜在机制。在我们的研究中,LINC00536 在 HCC 患者的肿瘤样本中过表达,并与不良预后相关。LINC00536 的敲低会损害细胞活力、增殖、迁移和侵袭。LINC00536 可以直接与 miR-203b-5p 结合,降低 miR-203b-5p 的表达水平。VEGFA 被指定为 miR-203b-5p 的靶基因。挽救研究表明,miR-203b-5p 的抑制或 VEGFA 的过表达可以逆转 LINC00536 敲低引起的细胞表型受损。体内实验支持了 HCC 中的 LINC00536/miR-203b-5p/VEGFA 轴。总之,LINC00536 可以通过调节 miR-203b-5p/VEGFA 轴促进 HCC 恶化。这项研究可能为 LINC00536 提供理论依据,使其成为 HCC 的一个有前途的治疗靶点。