The mechanism of lncRNA SNHG1 in osteogenic differentiation via miR-497-5p/ HIF1AN axis

ABSTRACT

The pivotal role of lncRNAs in osteoporosis progression and development necessitates a comprehensive exploration of the functional and precise molecular mechanisms underlying lncRNA SNHG1’s regulation of osteoblast differentiation and calcification. The study involved inducing BMSCs cells to differentiate into osteoblasts, followed by transfections of miR-497-5p inhibitors, pcDNA3.1-SNHG1, sh-HIF1AN, miR-497-5p mimics, and respective negative controls into BMSCs. Quantitative PCR (qPCR) was employed to assess the expression of SNHG1 and miR-497-5p. Western Blotting was conducted to measure the levels of short stature-related transcription factor 2 (RUNX2), osteopontin (OPN), osteocalcin (OCN), and HIF1AN. Alkaline phosphatase (ALP) activity was determined using appropriate assay kits. Calcium nodule staining was performed through Alizarin red staining. Dual luciferase reporter gene assays were executed to validate the interaction between SNHG1 and miR-497-5p, as well as HIF1AN. Throughout osteogenic differentiation, there was a down-regulation of SNHG1 and HIF1AN, in contrast to an elevation in miR-497-5p levels. Direct interactions between miR-497-5p and both SNHG1 and HIF1AN were observed. Notably, SNHG1 exhibited the ability to modulate HIF1AN by influencing miR-497-5p, thereby inhibiting osteogenic differentiation. Functioning as a competitive endogenous RNA, lncRNA SNHG1 exerts an inhibitory influence on osteogenic differentiation via the miR-497-5p/HIF1AN axis. This highlights the potential for lncRNA SNHG1 to emerge as a promising therapeutic target for osteoporosis. The study’s findings pave the way for a novel target strategy in the future treatment of osteoporosis.

KEYWORDS:

• lncRNA SNHG1
• miR-497-5p
• HIF1AN
• osteoporosis
• osteogenic differentiation

Disclosure statement

No potential conflict of interest was reported by the author(s).

Authors’ contributions

This research project was conceptualized by Yuanyuan Lu, with Kaihua Pan being responsible for data curation and contributing to data collection and analysis. Yunqing Zhang carried out the experimental work. The project was overseen by Jiang Peng and Daning Cao. Xiaoming Li played a critical role in revising the manuscript for significant intellectual contributions. All authors have reviewed and approved the final version of the manuscript for publication.

Ethics approval and consent to participate

This study was approved by the ethics committee of the first hospital of Changsha.

Data presentation

The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.

Additional information

Funding

This work was supported by Natural Science Funding of Changsha City under Grant [number kq2202006].