Related Experiment Video

Updated: Feb 10, 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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Selective elimination of senescent cells by mitochondrial targeting is regulated by ANT2

Sona Hubackova1, Eliska Davidova2, Katerina Rohlenova2,3

  • 1Laboratory of Molecular Therapy, Institute of Biotechnology, Czech Academy of Sciences, Prague, 252 50, Czech Republic. sona.hubackova@ibt.cas.cz.

Cell Death and Differentiation
|May 23, 2018
PubMed

Insights

Mitochondria-targeted tamoxifen (MitoTam) eliminates senescent cells, unlike conventional drugs. This novel anticancer agent offers a potential strategy for treating age-related diseases and senescence-associated pathologies by targeting adenine nucleotide translocase-2 (ANT2) expression.

Area of Science:

  • Cellular biology
  • Aging research
  • Oncology

Background:

  • Cellular senescence is a state of irreversible cell cycle arrest.
  • Accumulation of senescent cells contributes to tissue damage, inflammation, and age-related diseases.
  • Current anticancer therapies may induce senescence, complicating treatment outcomes.

Purpose of the Study:

  • To investigate the effects of mitochondria-targeted tamoxifen (MitoTam) on senescent cells.
  • To explore the potential of MitoTam as a therapeutic agent for senescence-associated conditions.
  • To elucidate the mechanism underlying senescent cell susceptibility to MitoTam.

Main Methods:

  • In vitro and in vivo experiments using cancer cells and aged mice.
  • Treatment with MitoTam and conventional anticancer agents.
  • Analysis of senescence markers and adenine nucleotide translocase-2 (ANT2) expression.
  • Genetic manipulation of ANT2 levels in senescent and non-senescent cells.

Main Results:

  • MitoTam eliminates cancer cells without inducing senescence.
  • MitoTam selectively eliminates both malignant and non-cancerous senescent cells.
  • A significant decrease in senescence markers was observed in aged mice treated with MitoTam.
  • Senescent cells' susceptibility to MitoTam is linked to low ANT2 expression.

Conclusions:

  • MitoTam presents a novel therapeutic strategy for eliminating senescent cells.
  • Targeting mitochondrial pathways offers a new approach for treating age-related diseases and senescence-associated pathologies.
  • ANT2 expression levels are critical in determining senescent cell sensitivity to MitoTam.

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