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Updated: May 30, 2025
07:39
SA-β-Galactosidase-Based Screening Assay for the Identification of Senotherapeutic Drugs
Published on: June 28, 2019
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Transcriptomic signatures and network-based methods uncover new senescent cell anti-apoptotic pathways and senolytics
Samael Olascoaga1,2, Mina Konigsberg2, Jesús Espinal-Enríquez3
1Posgrado en Biología Experimental, DCBS, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico.
The FEBS Journal
|January 28, 2025
Summary
Cellular senescence, an irreversible cell cycle arrest, contributes to aging. This study identifies new survival pathways in senescent cells and over 600 potential senolytic drugs to selectively eliminate them.
Area of Science:
- Cell Biology
- Aging Research
- Pharmacology
Background:
- Cellular senescence is a state of irreversible cell cycle arrest.
- Accumulating senescent cells drive age-related diseases.
- Senescent cells evade apoptosis via resistance mechanisms, but these are poorly understood.
Purpose of the Study:
- To identify novel senescence-related survival mechanisms.
- To discover molecules with senolytic activity.
- To elucidate the antiapoptotic pathways in senescent cells.
Main Methods:
- Analysis of transcriptomic data from the LINCS L1000 project.
- Application of network-based methodologies.
- Computational identification of genes and molecules, followed by experimental validation.
Main Results:
- Identification of novel genes potentially involved in senescence survival.
- Discovery of over 600 molecules with senolytic potential.
- Validation of Fluorouracil's senolytic activity via a multitarget mechanism.
Conclusions:
- New senescence-related survival pathways (SCAPs) involving AURKA, EGFR, IRS1, SMAD4, and KRAS were identified.
- SCAP development may be stimulus-dependent.
- Findings offer insights into senescent cell survival and potential senolytic therapies.
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