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Author Spotlight: Exploring the Role of FAM83A in Cervical Cancer
04:20

Author Spotlight: Exploring the Role of FAM83A in Cervical Cancer

Published on: February 9, 2024

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FAM193A is a positive regulator of p53 activity

Maria M Szwarc1, Anna L Guarnieri1, Molishree Joshi2

  • 1Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.

Cell Reports
|March 10, 2023
PubMed

Insights

FAM193A is a newly identified regulator of the p53 pathway, crucial for cancer drug response. Its expression predicts patient outcomes, highlighting its role in tumor suppression.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Inactivation of the p53 tumor suppressor is common in cancer.
  • MDM2 and MDM4 are key repressors of p53.
  • Current p53-MDM2/4 inhibitors show limited therapeutic value due to heterogeneous responses.

Purpose of the Study:

  • To investigate the cellular response to MDM2/4 inhibitors.
  • To identify novel regulators of the p53 pathway.
  • To explore the therapeutic potential of targeting p53 regulation.

Main Methods:

  • Multi-omics investigation
  • CRISPR screening
  • Analysis of genetic codependency data
  • Protein interaction studies

Main Results:

  • FAM193A was identified as a necessary regulator for response to Nutlin (p53-MDM2/4 inhibitor).
  • FAM193A expression correlates with Nutlin sensitivity across numerous cell lines.
  • FAM193A interacts with MDM4, and its depletion stabilizes MDM4, inhibiting p53.
  • FAM193A expression is linked to better prognosis in several cancers.

Conclusions:

  • FAM193A is a positive regulator of p53.
  • FAM193A represents a potential therapeutic target for enhancing p53 pathway activity in cancer.
  • FAM193A's role in p53 regulation and prognostic significance warrants further investigation.
Keywords:
CP: CancerCP: Molecular biologyCRISPRMDM2MDM4MDMXNutlinapoptosiscell-cycle arrestp53

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