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LncRNA SNHG12 Promotes Osteoarthritis Progression Through Targeted Down-Regulation of miR-16-5p by Xu Yang, Haosheng Chen, Hong Zheng, Kang Chen, Pingyuan Cai, Lei Li, Keqian Li, Yang Du, Xiang Chun He

Background: In accordance with increasing studies, long non-coding RNAs (LncRNAs) act pivotally in the occurrence as well as development of several human diseases. But how lncRNA SNHG12 acts in osteoarthritis (OA) is still not clear.
Methods: We applied CCK-8 to determine cell viability, along with qRT-PCR to detect mRNA expression. Using luciferase reporter experiment, our team detected the binding relationship between lncRNA SNHG12 along with miR-16-5p.
Results: The inflammatory factor IL-1β induced chondrocytes to express lncRNA SNHG12, and lncRNA SNHG12 expression was up-regulated in OA tissues. Additionally, our personnel proved that IL-1β inhibited miR-16-5p expression in chondrocytes, which in OA tissues was lower than that in normal tissues. miR-16-5p expression level in the OA patients’ tissue was negatively correlated with lncRNA SNHG12 expression. The high-expression lncRNA SNHG12 inhibits chondrocyte proliferation, promoting apoptosis and inflammation as well as extracellular matrix (ECM) degradation. These effects can be reversed by co-transfecting miR-16-5p mimic. In addition, our work revealed that miR-16-5p is a target of lncRNA SNHG12.
Conclusions: lncRNA SNHG12 regulates OA development by inhibiting miR-16-5p expression in chondrocytes. We believe that the lncRNA SNHG12/miR-16-5p axis might be a potential therapeutic and diagnostic target for OA.

DOI: 10.7754/Clin.Lab.2021.210402