The role of targeted therapy in metastatic renal cell carcinoma

Jaya Unnithan1, Brian I Rini

  • 1Department of Solid Tumor Oncology, Cleveland Clinic Taussig Cancer Center, Cleveland, OH, USA.

Insights

Targeted therapies, including vascular endothelial growth factor receptor (VEGFR) and mammalian target of rapamycin (mTOR) inhibitors, show promise in treating advanced renal cell carcinoma (RCC). Clinical trials demonstrate their efficacy in managing this complex cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Renal cell carcinoma (RCC) is characterized by high vascularity.
  • Advances in understanding RCC biology have led to new systemic therapies.
  • Key molecular targets include vascular endothelial growth factor (VEGF) and mammalian target of rapamycin (mTOR) pathways.

Purpose of the Study:

  • To describe the biological pathways implicated in RCC development.
  • To review clinical trial results for targeted therapies in metastatic RCC.
  • To provide an overview of current systemic treatment strategies for advanced RCC.

Main Methods:

  • Review of biological pathways in RCC.
  • Analysis of clinical trial data for targeted agents.
  • Description of orally available inhibitors like Sutent and sorafenib (VEGFR/PDGFR inhibitors) and temsirolimus (mTOR inhibitor).

Main Results:

  • VEGF/VEGFR and mTOR pathways are crucial in advanced RCC.
  • Orally available inhibitors targeting VEGFR and PDGFR (Sutent, sorafenib) are clinically utilized.
  • Temsirolimus, an mTOR inhibitor, induces cell cycle arrest and may impact VEGF production.

Conclusions:

  • Targeted therapies represent a significant advancement in treating advanced RCC.
  • Understanding the molecular pathways is key to developing effective treatments.
  • Ongoing research continues to refine systemic therapy options for RCC.

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