MicroRNAs are critical regulators of senescence and aging in mesenchymal stem cells

Matthew L Potter1, William D Hill2, Carlos M Isales3

  • 1Department of Orthopedics, Augusta University, Augusta, GA, United States of America.

Bone
|October 6, 2020
PubMed

Insights

MicroRNAs (miRNAs) and cellular senescence are key drivers of age-related diseases. This review explores their intertwined roles in mesenchymal stem cells (MSCs) for potential regenerative medicine applications.

Area of Science:

  • Gerontology
  • Molecular Biology
  • Regenerative Medicine

Background:

  • Cellular senescence and microRNAs (miRNAs) are implicated in aging and age-related diseases.
  • Mesenchymal stem cells (MSCs) play crucial roles in tissue repair and are affected by aging and senescence.

Purpose of the Study:

  • To review the connection between miRNAs and cellular senescence in MSCs.
  • To highlight potential miRNA targets for treating age-related musculoskeletal diseases.

Main Methods:

  • Literature review of studies on miRNAs, senescence, and MSCs.
  • Analysis of differentially expressed miRNAs in senescent and aging MSCs.
  • Examination of miRNA regulation by senescence-associated secretory phenotype (SASP) factors.
  • Identification of miRNAs targeting cell cycle arrest pathways in senescence.

Main Results:

  • Specific miRNAs are differentially expressed during MSC senescence and aging.
  • MiRNAs are regulated by SASP cytokines in MSCs.
  • Several miRNAs target key components of senescence-induced cell cycle arrest pathways.

Conclusions:

  • The interplay between miRNAs and senescence in MSCs is critical for age-related musculoskeletal conditions.
  • Targeting specific miRNAs in MSCs offers potential for regenerative therapies in aging populations.

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