Examining the Effects of Quercetin on Phenotypic Characteristics of Human Mesenchymal Stem Cells

Thomas Needy1, David Heinrichs1, Vitali Maldonado1

  • 1Department of Biomedical Engineering, University of Arkansas, 700 W Research Center Boulevard, Fayetteville, AR USA.

PubMed
Abstract

Insights

Quercetin did not improve mesenchymal stem cell (MSC) function or consistently eliminate senescent cells. This senolytic drug hindered proliferation and osteogenic markers, offering no therapeutic benefit for MSCs.

Area of Science:

  • Stem Cell Biology
  • Gerontology
  • Pharmacology

Background:

  • Mesenchymal stem cells (MSCs) lose potency due to in vitro senescence, limiting their therapeutic use.
  • Senolytic drugs, like quercetin, are investigated to remove senescent cells and restore MSC function.

Purpose of the Study:

  • To evaluate the senolytic potential and functional effects of quercetin on in vitro cultured mesenchymal stem cells.

Main Methods:

  • Senescent and non-senescent MSCs were treated with quercetin (10 μM).
  • Cells were analyzed for senescence markers (SAβ-gal, live/dead staining), proliferation, and differentiation into osteocytes, adipocytes, and chondrocytes.
  • Gene expression of osteogenic markers (COL1A1, ALP) and indoleamine 2,3 dioxygenase secretion were assessed.

Main Results:

  • Quercetin did not consistently reduce senescent cells.
  • Short-term proliferation was hindered in some donors.
  • Osteogenic differentiation markers (COL1A1, ALP) were reduced.
  • Adipogenesis, chondrogenesis, and indoleamine 2,3 dioxygenase secretion were unaffected.

Conclusions:

  • Quercetin is not beneficial for mesenchymal stem cell function or senolytic therapy in vitro.
  • The drug demonstrated no consistent senolytic effect and negatively impacted osteogenesis.