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Updated: Jul 11, 2026

The Use of Reverse Phase Protein Arrays (RPPA) to Explore Protein Expression Variation within Individual Renal Cell Cancers
Published on: January 22, 2013
Evolving role of novel targeted agents in renal cell carcinoma
Thomas E Hutson1, Robert A Figlin
1Baylor Sammons Cancer Center, U.S. Oncology Research Network Dallas, Texas, USA.
Abstract:
The treatment of metastatic renal cell carcinoma (RCC) has changed dramatically over the past few years. An improved understanding of the biology of RCC has resulted in the development of novel targeted therapeutic agents that have altered the natural history of this disease. In particular, the hypoxia-inducible factor (HIF)/vascular endothelial growth factor (VEGF) pathway and the mammalian target of rapamycin (mTOR) signal transduction pathway have been exploited. Sunitinib malate (Sutent), sorafenib tosylate (Nexavar), bevacizumab (Avastin)/interferon alfa, and temsirolimus (Torisel) have improved clinical outcomes in randomized trials by inhibiting these tumorigenic pathways. Combinations and sequences of these agents are being evaluated. Other novel multitargeted tyrosine kinase inhibitors (pazopanib and axitinib) and mTOR inhibitors (everolimus) are in clinical development. Recently reported and ongoing clinical trials will help further define the role of these agents as therapy for metastatic RCC.
Insights
Novel targeted therapies targeting the HIF/VEGF and mTOR pathways have significantly improved outcomes for metastatic renal cell carcinoma (RCC). Ongoing trials continue to define the optimal use of these agents and new drugs in RCC treatment.
Area of Science:
- Oncology
- Pharmacology
Background:
- Metastatic renal cell carcinoma (RCC) treatment has evolved significantly.
- Advances in understanding RCC biology have led to novel targeted therapies.
Purpose of the Study:
- To review the impact of novel targeted agents on metastatic RCC.
- To discuss the role of the hypoxia-inducible factor (HIF)/vascular endothelial growth factor (VEGF) and mammalian target of rapamycin (mTOR) pathways in RCC treatment.
Main Methods:
- Review of randomized trials and clinical development of targeted agents.
- Inhibition of key tumorigenic pathways like HIF/VEGF and mTOR.
Main Results:
- Agents like sunitinib, sorafenib, bevacizumab/interferon alfa, and temsirolimus have improved clinical outcomes.
- These drugs target specific molecular pathways implicated in RCC growth.
Conclusions:
- Targeted therapies have altered the natural history of metastatic RCC.
- Combinations and sequences of agents are under investigation.
- New multitargeted tyrosine kinase inhibitors and mTOR inhibitors are in development.
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