Sunitinib resistance in renal cell carcinoma

Christudas Morais1

  • 1Centre for Kidney Disease Research, School of Medicine, The University of Queensland at Translational Research Institute, Brisbane, Queensland 4102, Australia.

Insights

Sunitinib is a common treatment for metastatic renal cell carcinoma (RCC), but resistance is a major challenge. Sequential therapy shows promise for overcoming both intrinsic and acquired sunitinib resistance in RCC patients.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Sunitinib is a primary first-line therapy for metastatic renal cell carcinoma (RCC).
  • Significant patient populations exhibit intrinsic resistance or develop acquired resistance to sunitinib.
  • Understanding resistance mechanisms is crucial for improving patient outcomes.

Purpose of the Study:

  • To review the molecular mechanisms underlying intrinsic and acquired resistance to sunitinib in metastatic RCC.
  • To summarize current and emerging strategies for overcoming sunitinib resistance.
  • To highlight sequential therapy as a promising approach.

Main Methods:

  • Literature review of studies on sunitinib resistance in metastatic RCC.
  • Analysis of molecular mechanisms of intrinsic and acquired resistance.
  • Evaluation of therapeutic strategies including combination, rechallenge, and sequential therapy.

Main Results:

  • Intrinsic resistance mechanisms remain largely unknown, unlike acquired resistance.
  • Sequential therapy demonstrates potential as an effective strategy to overcome sunitinib resistance.
  • Combination and rechallenge therapies have also been explored.

Conclusions:

  • Sunitinib resistance in metastatic RCC necessitates novel therapeutic strategies.
  • Sequential therapy is a promising approach to manage both intrinsic and acquired resistance.
  • Further research into intrinsic resistance mechanisms is warranted.

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