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Updated: Jan 28, 2026

Far-Red Fluorescent Senescence-Associated β-Galactosidase Probe for Identification and Enrichment of Senescent Tumor Cells by Flow Cytometry
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Far-Red Fluorescent Senescence-Associated β-Galactosidase Probe for Identification and Enrichment of Senescent Tumor Cells by Flow Cytometry

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The mTORC1-autophagy pathway is a target for senescent cell elimination

Olena Kucheryavenko1,2, Glyn Nelson1, Thomas von Zglinicki3

  • 1Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK.

Biogerontology
|February 25, 2019
PubMed

Insights

Cellular senescence drives organismal aging. Targeting the mammalian Target of Rapamycin Complex I (mTORC1) pathway may eliminate senescent cells, potentially reducing aging and extending lifespan.

Area of Science:

  • Cellular and Molecular Biology
  • Gerontology
  • Biochemistry

Background:

  • Cellular senescence is a key factor in organismal aging.
  • The mammalian Target of Rapamycin Complex I (mTORC1) pathway is central to senescence.
  • mTORC1 signaling controls the senescence program through extensive pathway rewiring.

Purpose of the Study:

  • To elucidate the mechanisms by which mTORC1 drives cellular senescence.
  • To investigate mTORC1 as a therapeutic target for eliminating senescent cells.
  • To assess the potential of mTORC1 suppression in reducing senescent cell burden and extending lifespan.

Main Methods:

  • Review of recent publications on mTORC1 and senescence mechanisms.
  • In vitro experiments targeting mTORC1 for senescent cell elimination.
  • Proof-of-concept in vivo experiments to evaluate mTORC1 suppression effects.

Main Results:

  • mTORC1 plays a critical role in driving the senescence program.
  • mTORC1 inhibition effectively eliminates senescent cells in vitro.
  • Suppression of mTORC1 shows potential for reducing senescent cell load in vivo.

Conclusions:

  • mTORC1 is a crucial regulator of cellular senescence.
  • Targeting mTORC1 offers a promising strategy for senescent cell elimination.
  • Further research into mTORC1 inhibition may lead to interventions for aging and age-related diseases.
Keywords:
AgeingDNA damageSenescenceTorin1mTOR

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