Int J Sports Med
DOI: 10.1055/a-2323-9749
Orthopedics & Biomechanics

LINC00963 Represses Osteogenic Differentiation of hBMSCs via the miR-10b-5p/RAP2A/AKT Axis

1   Histology & Embryology Teaching and Researching Section, Xi’an Medical University, Xi’an, China
,
Mingjuan Shi
2   Public Health College, Xi’an Medical University, Xi’an, China
,
Xuan Zhao
1   Histology & Embryology Teaching and Researching Section, Xi’an Medical University, Xi’an, China
,
Guifu Wu
3   Department Endocrinology, Shaanxi Province People Hospital, Xi’an, China
,
Huiyuan Zheng
1   Histology & Embryology Teaching and Researching Section, Xi’an Medical University, Xi’an, China
,
Yuanyuan Cui
1   Histology & Embryology Teaching and Researching Section, Xi’an Medical University, Xi’an, China
,
Yu Shang
4   Clinical College, Xi’an Medical University, Xi’an, China
› Author Affiliations
Funding Information Shaanxi Science and Technology Department Fund Project — 2010K13-01-03

Abstract

Osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSCs) is important for human bone formation. Long non-coding RNAs (lncRNAs) are critical regulators in osteogenic differentiation. This study aimed to explore the function and mechanisms of long intergenic non-protein coding RNA 963 (LINC00963) in affecting osteogenesis. Cell differentiation was assessed by alkaline phosphatase (ALP) activity detection and ALP staining assay. Meanwhile, levels of osteogenic marker genes, including RUNX family transcription factor 2 (RUNX2), osteocalcin (OCN), and osteopontin (OPN), were detected by RT-qPCR and western blot. Cell proliferation and apoptosis were measured using CCK-8 assay and flow cytometry analysis. RNA immunoprecipitation (RIP), RNA pull-down and luciferase reporter assays were used to investigate the interaction between genes. LINC00963 expression was down-regulated in hBMSCs treated with osteogenic induction. LINC00963 overexpression inhibited hBMSCs differentiation, proliferation, and elevated apoptosis. LINC00963 acted as a competing endogenous RNA (ceRNA) to interact with miR-10b-5p and thereby regulated the expression level of Ras-related protein Rap-2a (RAP2A). LINC00963 regulated RAP2A to inhibit the level of phosphorylated AKT (p-AKT). LINC00963 inhibited hBMSCs differentiation, proliferation, and elevated apoptosis via the miR-10b-5p/RAP2A/AKT signaling, which might help improve the treatment of osteoporosis.

Supplementary Material



Publication History

Received: 22 August 2022

Accepted: 26 April 2024

Article published online:
28 July 2024

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