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

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Avoidance of apoptosis as a mechanism of drug resistance

C Dive1

  • 1Molecular Pharmacology Group, School of Biological Sciences, Manchester University, UK.

Journal of Internal Medicine. Supplement
|January 1, 1997
PubMed

Insights

Cancer cells can resist chemotherapy through various mechanisms. This article explores how suppressed apoptosis, or programmed cell death, may cause pleiotropic drug resistance, hindering cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Drug resistance is a significant challenge in cancer therapy.
  • Mechanisms include altered drug uptake, metabolism, target interaction, and efflux.
  • Pleiotropic drug resistance affects tumors resistant to multiple chemotherapeutic agents with different actions.

Purpose of the Study:

  • To investigate the potential role of suppressed apoptosis in pleiotropic drug resistance.
  • To discuss the mechanisms underlying resistance to diverse chemotherapeutic agents.

Main Methods:

  • Review of existing literature on drug resistance mechanisms.
  • Analysis of studies investigating apoptosis pathways in cancer cells.
  • Discussion of the link between apoptosis threshold and pleiotropic drug resistance.

Main Results:

  • Several known mechanisms of drug resistance involve direct drug-target interactions.
  • Tumors can exhibit inherent resistance to a broad spectrum of drugs.
  • Suppressed apoptosis presents a plausible mechanism for this widespread drug resistance.

Conclusions:

  • Elevated resistance to apoptosis may explain why some tumors are resistant to multiple chemotherapeutic agents.
  • Targeting apoptosis pathways could be a strategy to overcome pleiotropic drug resistance in cancer treatment.

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