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[Mechanisms of resistance to molecular targeted therapies in breast cancer: update and future]

N Magné1, C Chargari, R Conforti

  • 1Service d'oncologie médicale, hôpital Pitié-Salpêtrière, AP-HP, 47-83, boulevard de l'Hôpital, 75013 Paris, France.

Bulletin Du Cancer
|February 20, 2010
PubMed

Insights

Targeted therapies like trastuzumab and bevacizumab show promise in breast cancer treatment. However, tumor cells develop complex resistance mechanisms to these agents, which this review highlights.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Context:

  • Clinical trials demonstrate the efficacy of targeted therapies, including antiangiogenic and HER2 inhibitors, in breast cancer treatment.
  • Trastuzumab has improved outcomes for HER2-overexpressing metastatic or adjuvant breast cancer.
  • Bevacizumab exemplifies the emerging role of angiogenesis inhibitors.

Purpose:

  • To review the mechanisms of tumor resistance to targeted therapies in breast cancer.
  • To highlight recent developments in understanding and overcoming resistance to targeted agents.

Summary:

  • Tumor cells develop sophisticated resistance mechanisms against targeted therapies such as trastuzumab and bevacizumab.
  • This review details how cancer cells evade the effects of targeted agents.
  • Recent advancements in identifying and addressing these resistance pathways are discussed.

Impact:

  • Understanding resistance mechanisms is crucial for improving the efficacy of targeted breast cancer therapies.
  • This knowledge can guide the development of novel therapeutic strategies to overcome resistance.
  • Enhanced treatment outcomes for breast cancer patients are anticipated through better management of resistance.

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