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Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
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Drug resistance in cancer: an overview

Genevieve Housman1, Shannon Byler2, Sarah Heerboth3

  • 1School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287, USA. ghousman@asu.edu.

Cancers
|September 9, 2014
PubMed

Insights

Drug-resistant cancers pose a growing threat, necessitating new strategies. This review details resistance mechanisms, epigenetic factors, and future therapeutic approaches for overcoming cancer drug resistance.

Area of Science:

  • Oncology
  • Cancer Biology
  • Pharmacology

Background:

  • Increasing prevalence of drug-resistant cancers requires novel therapeutic strategies.
  • Traditional cancer therapies face challenges due to acquired or intrinsic drug resistance.
  • Understanding resistance mechanisms is crucial for developing effective treatments.

Purpose of the Study:

  • To review current knowledge on cancer drug resistance mechanisms.
  • To explore the role of tumor cell heterogeneity and epigenetic modifications in drug resistance.
  • To discuss treatment options, prevention strategies, and future research directions for drug-resistant cancers.

Main Methods:

  • Literature review of studies on cancer drug resistance mechanisms.
  • Analysis of epigenetic modifications contributing to drug resistance and cancer progenitor cell development.
  • Synthesis of information on therapeutic interventions and preventative measures.

Main Results:

  • Identified key mechanisms of drug resistance: drug inactivation, target alteration, efflux, DNA repair, apoptosis inhibition, and epithelial-mesenchymal transition.
  • Highlighted the contribution of inherent tumor cell heterogeneity to resistance.
  • Discussed epigenetic modifications as drivers of drug resistance and cancer progenitor cell formation.

Conclusions:

  • Effective treatment of drug-resistant cancers requires a multi-faceted approach targeting identified resistance mechanisms.
  • Preventing the emergence of drug resistance and cancer progenitor cells is critical for long-term patient outcomes.
  • Further research into novel therapeutic targets and combination therapies is essential for overcoming cancer drug resistance.

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