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Updated: Jul 4, 2025

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
08:46

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms

Published on: December 9, 2015

10.6K

Genetic and non-genetic drug resistance: Darwin or Lamarck?

Mariangela Russo1

  • 1Department of Oncology, Molecular Biotechnology Center, University of Torino, Italy.

Molecular Oncology
|February 3, 2024
PubMed

Insights

Drug resistance in cancer is not solely genetic. Adaptive cell plasticity and non-genetic factors also drive therapy resistance, highlighting the need for broader strategies to improve anti-cancer treatments.

Area of Science:

  • Oncology
  • Cancer Biology
  • Molecular Biology

Background:

  • Drug resistance limits anti-cancer treatment efficacy.
  • Genetic mechanisms are traditionally viewed as primary drivers of acquired resistance.
  • Emerging evidence points to non-genetic mechanisms and cell plasticity in therapy resistance.

Purpose of the Study:

  • To review the role of non-genetic mechanisms in drug resistance.
  • To explore the interplay between genetic and non-genetic resistance pathways.
  • To inform the development of novel therapeutic strategies against cancer drug resistance.

Main Methods:

  • Literature review and synthesis of current research on drug resistance.
  • Analysis of genetic versus non-genetic mechanisms of therapy resistance.
  • Discussion of the implications for cancer treatment strategies.

Main Results:

  • Non-genetic mechanisms, including adaptive cell plasticity, significantly contribute to drug resistance.
  • Genetic and non-genetic resistance mechanisms are not mutually exclusive and can interact.
  • Understanding this interplay is crucial for predicting tumor evolution under therapy.

Conclusions:

  • Overcoming drug resistance requires considering both genetic and non-genetic factors.
  • Targeting adaptive cell plasticity may offer new avenues to combat therapy resistance.
  • A comprehensive understanding will lead to more effective and personalized cancer therapies.
Keywords:
drug resistanceepigeneticgenetictumor evolution

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