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LncRNA PCBP1-AS1 induces osteoporosis by sponging miR-126-5p/PAK2 axis

Zhihui Li1

  • 1Department of Rehabilitation Medicine, Chengdu First People's Hospital, Chengdu, China.

Bone & Joint Research
|June 12, 2023
PubMed
Abstract

Insights

Long non-coding RNA PCBP1-AS1 promotes osteoporosis by increasing PAK2 expression via sponging miR-126-5p. This lncRNA may serve as a novel therapeutic target for osteoporosis patients.

Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Long non-coding RNAs (lncRNAs) are key regulators in osteoporosis (OP) pathogenesis.
  • The specific role and mechanism of lncRNA PCBP1 Antisense RNA 1 (PCBP1-AS1) in OP are not well understood.

Purpose of the Study:

  • To investigate the function and molecular mechanism of lncRNA PCBP1-AS1 in the development of osteoporosis.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) and Western blotting to measure gene and protein expression.
  • Cell proliferation and osteogenic differentiation assays (CCK-8, Alizarin red, ALP staining).
  • RNA immunoprecipitation (RIP) and dual-luciferase reporter assays to elucidate molecular interactions.

Main Results:

  • PCBP1-AS1 expression was elevated in OP tissues and decreased during osteoblast differentiation.
  • PCBP1-AS1 knockdown enhanced human bone marrow-derived mesenchymal stem cell (hBMSC) proliferation and osteogenic differentiation.
  • PCBP1-AS1 acts as a molecular sponge for miR-126-5p, leading to increased PAK2 expression.

Conclusions:

  • PCBP1-AS1 promotes OP progression by upregulating PAK2 via the miR-126-5p/PAK2 axis.
  • PCBP1-AS1 represents a potential therapeutic target for osteoporosis treatment.

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