Small molecule compounds targeting the p53 pathway: are we finally making progress?

Xin Yu1, Sumana Narayanan, Alexei Vazquez

  • 1Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers-The State University of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA.

Insights

Targeting the p53 tumor suppressor gene, the most frequently mutated gene in human cancers, is crucial. Researchers are developing small-molecule drugs to activate the p53 pathway, with several now in clinical trials.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • The p53 tumor suppressor gene is the most frequently mutated gene in human cancers.
  • Loss of p53 function is critical for cancer development, making its pathway a key therapeutic target.

Purpose of the Study:

  • To review current literature on small-molecule drugs targeting wild-type and mutant p53.
  • To discuss drug discovery methods and mechanisms of action for p53-targeting agents.
  • To outline the developmental status of these drugs and identify future therapeutic avenues.

Main Methods:

  • Literature review of small-molecule compounds targeting p53.
  • Classification of drugs based on their mechanisms of action.
  • Analysis of current clinical trial data for p53-targeting therapeutics.

Main Results:

  • Significant progress has been made in discovering small molecules that target both wild-type and mutant p53.
  • The first in-human clinical trials for several p53-targeting drugs have been initiated and completed.
  • Various approaches are being explored to pharmacologically activate the p53 pathway.

Conclusions:

  • Pharmacologic activation of the p53 pathway represents a promising, yet challenging, therapeutic strategy in cancer treatment.
  • Small-molecule drugs targeting p53 are advancing through clinical development.
  • Emerging insights into p53 tumor biology may reveal novel therapeutic targets.

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