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Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
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The 2011 Gordon Wilson Lecture: overcoming resistance to targeted cancer drugs

Charles L Sawyers1

  • 1Human Oncology and Pathogenesis Program, Memorial Sloan-Kettering Cancer Center, Howard Hughes Medical Institute, 1275 York Avenue, New York, NY 10065, USA. sawyers@mskcc.org

Transactions of the American Clinical and Climatological Association
|January 11, 2013
PubMed

Insights

Molecularly targeted cancer drugs show promise but resistance limits efficacy. Understanding resistance mechanisms, often pathway reactivation, rapidly informs new therapies for better patient outcomes.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Molecularly targeted drugs have revolutionized cancer treatment over the last decade.
  • Acquired resistance frequently limits the long-term clinical benefits of these targeted therapies.
  • Understanding resistance mechanisms to targeted agents has advanced rapidly due to molecular profiling technologies.

Discussion:

  • Resistance to targeted cancer drugs is often linked to the reactivation of the inhibited signaling pathway.
  • Genome-wide profiling of patient samples has been crucial in elucidating these resistance mechanisms.
  • Examples from chronic myeloid leukemia, prostate cancer, and lung cancer highlight consistent themes in resistance.

Key Insights:

  • Resistance is almost invariably associated with the restoration of the targeted signaling pathway.
  • Rapid identification of resistance mechanisms accelerates the development of next-generation therapies.
  • Insights into resistance pave the way for improved combination regimens.

Outlook:

  • Further research into resistance mechanisms will drive the development of more durable and effective cancer treatments.
  • Personalized medicine approaches informed by resistance profiles will become increasingly important.
  • The continuous evolution of targeted therapies aims to overcome acquired drug resistance and improve patient survival.

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