Methods to Screen Compounds Against Mutant p53 Misfolding and Aggregation for Cancer Therapeutics

Methods Mol Biol. 2019:1873:265-277. doi: 10.1007/978-1-4939-8820-4_17.

Abstract

p53 is a critical tumor suppressor that functions as a transcription factor. Mutations in the TP53 gene are observed in more than 50% of cancer cases worldwide. Several of these mutations lead to a less stable, aggregation-prone protein that accumulates in cancer cells. These mutations are associated with a gain of oncogenic function, which leads to cancer progression. p53 amyloid aggregation is a common feature in most of these mutants; thus, it can be used as a druggable target to reactivate or induce the degradation of p53 and promote a retraction in the aggressive pattern of mutant p53-containing cells. We show here a series of experiments for the screening and validation of new p53 antiamyloid compounds.

Keywords: Aggregation; Amyloid; Anticancer therapy; p53.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / pharmacology
  • Cell Proliferation
  • Drug Screening Assays, Antitumor*
  • Flow Cytometry
  • Humans
  • Kinetics
  • Mutant Proteins*
  • Protein Aggregates / drug effects
  • Protein Binding
  • Protein Folding* / drug effects
  • Protein Interaction Domains and Motifs
  • Protein Multimerization
  • Tumor Suppressor Protein p53 / antagonists & inhibitors
  • Tumor Suppressor Protein p53 / chemistry*
  • Tumor Suppressor Protein p53 / genetics
  • Tumor Suppressor Protein p53 / metabolism

Substances

  • Antineoplastic Agents
  • Mutant Proteins
  • Protein Aggregates
  • Tumor Suppressor Protein p53