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Activins in adipogenesis and obesity
1Institute Biology of Valrose (iBV), CNRS/Inserm, Faculty of Medicine, University of Nice Sophia-Antipolis, Nice, Cedex, France. dani@unice.fr
International Journal of Obesity (2005)
|February 29, 2012
Summary
Activins, transforming growth factor-β family proteins, regulate adipose tissue development. This review highlights their roles in adipocyte proliferation, differentiation, and obesity-related metabolic issues, suggesting therapeutic potential.
Area of Science:
- Endocrinology and Metabolism
- Cell Biology
- Adipose Tissue Biology
Background:
- Activins are secreted proteins belonging to the transforming growth factor-β superfamily.
- They play crucial roles in various biological processes, including apoptosis, proliferation, and cell differentiation.
- Activins A, B, and AB are notably expressed in adipose tissue.
Purpose of the Study:
- To review the multifaceted roles of activins in the physiological and pathological development of adipose tissue.
- To explore the specific functions of Activin A in human adipocyte progenitor cells.
- To examine the proposed role of Activin B/AB as an adipokine in energy balance and insulin sensitivity.
Main Methods:
- Literature review synthesizing current research on activins in adipose tissue.
- Analysis of studies investigating Activin A's impact on adipocyte progenitor proliferation and differentiation.
- Examination of evidence linking Activin B/AB to metabolic regulation in obesity.
Main Results:
- Activin A critically regulates human adipocyte progenitor proliferation and inhibits their differentiation.
- Activin A may mediate fibrosis in adipose tissue associated with obesity.
- Activin B/AB is implicated as an adipokine influencing energy balance and insulin insensitivity in obesity.
Conclusions:
- The activin pathway is pivotal in adipose tissue development and function.
- Activins present potential therapeutic targets for managing adipose precursor pool size and phenotype.
- Targeting the activin pathway may offer strategies for addressing obesity-associated metabolic complications.
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