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Related Experiment Video

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Estrogen deficiency does not decrease the in vitro osteogenic potential of rat adipose-derived mesenchymal stem

Francesca Veronesi1, Stefania Pagani, Elena Della Bella

  • 1Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Via Di Barbiano 1/10, 40136, Bologna, Italy, francesca.veronesi@ior.it.

Age (Dordrecht, Netherlands)
|April 2, 2014
PubMed
Summary
This summary is machine-generated.

Adipose-derived mesenchymal stem cells (ADSCs) show enhanced osteogenic potential in estrogen-deficient conditions, suggesting their utility in regenerative medicine for osteoporosis. These cells are less impacted by estrogen deficiency than bone marrow mesenchymal stem cells.

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Area of Science:

  • Regenerative Medicine
  • Stem Cell Biology
  • Bone Physiology

Background:

  • Estrogen deficiency-induced osteoporosis is a growing global health concern.
  • Bone marrow mesenchymal stem cells (BMSCs) are commonly used in regenerative medicine but are sensitive to aging and estrogen deficiency.
  • Adipose-derived mesenchymal stem cells (ADSCs) offer potential advantages over BMSCs, including resilience to aging, but their behavior in estrogen deficiency requires further investigation.

Purpose of the Study:

  • To investigate the in vitro behavior of adipose-derived mesenchymal stem cells (ADSCs) from estrogen-deficient (OVX) rats compared to healthy (SHAM) controls.
  • To evaluate the impact of estrogen deficiency on ADSC phenotype, clonogenicity, viability, and osteogenic differentiation.
  • To analyze pro-inflammatory cytokines, growth factors, and adipogenic differentiation markers in ADSCs under different conditions.

Main Methods:

  • Isolation and in vitro culture of ADSCs from SHAM and OVX rats.
  • Assessment of cell phenotype, clonogenicity, and viability.
  • Evaluation of osteogenic differentiation markers (gene and protein expression, matrix mineralization) with and without osteogenic stimuli.
  • Analysis of cytokine, growth factor, and adipogenic marker expression.

Main Results:

  • No significant differences were observed between OVX and SHAM ADSCs in some parameters.
  • OVX ADSCs exhibited significantly higher clonogenicity, osteopontin (Spp1) gene expression, alkaline phosphatase (ALP) activity, total collagen (COLL) content, osteocalcin (Bglap) expression and production, and matrix mineralization compared to SHAM ADSCs.
  • In osteogenic medium, OVX ADSCs showed increased peroxisome proliferator-activated receptor gamma (Pparg) expression and decreased estrogen receptor 1 (Esr1) expression.

Conclusions:

  • Estrogen deficiency does not negatively affect the osteogenic differentiation potential of ADSCs in an osteogenic microenvironment.
  • ADSCs demonstrate enhanced osteogenic characteristics under estrogen-deficient conditions, suggesting their potential for treating osteoporosis.
  • ADSCs represent a promising cell source for regenerative medicine strategies targeting bone pathologies associated with estrogen deficiency.