POU2AF1 promotes MSCs adipogenesis by inhibiting HDAC1 expression

Yaqing Wang1, Luyang Wang2, Zhongping Su3

  • 1Department of Cardiology, Geriatric Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.

Adipocyte
|May 5, 2021
PubMed

Insights

POU class 2 homeobox associating factor 1 (POU2AF1) promotes mesenchymal stem cell (MSC) adipogenesis via histone deacetylases 1 (HDAC1) signaling. Modulating POU2AF1 effectively controls adipose production, offering therapeutic potential for metabolic diseases.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Excess visceral adipose tissue is a significant risk factor for numerous diseases.
  • Inhibiting adipogenesis in mesenchymal stem cells (MSCs) is a key strategy to reduce adipose tissue accumulation.
  • The role of POU class 2 homeobox associating factor 1 (POU2AF1) in MSC adipogenesis requires further elucidation.

Purpose of the Study:

  • To investigate the role of POU2AF1 in the adipogenesis of human adipose-derived MSCs.
  • To explore the underlying signaling pathway involving histone deacetylases 1 (HDAC1).
  • To assess the potential of POU2AF1 as a therapeutic target for managing obesity and related diseases.

Main Methods:

  • Isolation of human retroperitoneal adipose-derived MSCs from overweight and control patients.
  • Gene expression analysis using IncRNA microarray.
  • Manipulation of POU2AF1 and HDAC1 levels via adenovirus transduction and small-interfering RNA.
  • Assessment of adipogenesis using Oil-red O staining, triglyceride and cholesterol assays, real-time PCR, and Western Blot.

Main Results:

  • POU2AF1 expression was elevated in overweight patients' adipose tissue and increased during adipogenesis.
  • POU2AF1 overexpression promoted MSC adipogenesis, while its silencing inhibited it.
  • POU2AF1 overexpression reduced nuclear translocation and mRNA levels of HDAC1.
  • Co-transfection with HDAC1 partially reversed POU2AF1's pro-adipogenic effects.

Conclusions:

  • POU2AF1 plays a crucial role in human MSC adipogenesis through HDAC1 signaling.
  • Modulating POU2AF1 expression offers a potential strategy to control adipose tissue development.
  • Targeting POU2AF1 may provide a novel therapeutic approach for metabolic disorders associated with excessive adipose tissue.

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