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Updated: May 9, 2026

Modeling Spontaneous Metastatic Renal Cell Carcinoma (mRCC) in Mice Following Nephrectomy
Published on: April 29, 2014
Angiopoietins and non-vascular endothelial growth factor antiangiogenic targets in advanced renal cell carcinoma
Stephen L Richey1, Thomas E Hutson
1Hematology and Oncology, Texas Oncology Fort Worth, Fort Worth, TX, USA.
Abstract:
The treatment of metastatic renal cell carcinoma has evolved from an era dominated by immune modulation to an era of antiangiogenesis agents. Blockade of vascular endothelial growth factor-mediated pathways and mammalian target of rapamycin pathways has accounted for most of these gains. Although these agents have offered dramatic improvements in survival for kidney cancer patients, resistance inevitably occurs, and new classes of agents are needed to continue to improve outcomes in this setting. We discuss several alternative pathways of angiogenesis, which are being investigated as targets to overcome treatment resistance, including angiopoietin family proteins, fibroblast growth factor, platelet-derived growth factor, and vascular disrupting agents.
Insights
Metastatic renal cell carcinoma treatment has shifted to antiangiogenesis agents, improving survival. However, resistance necessitates exploring new targets like angiopoietin, fibroblast growth factor, and platelet-derived growth factor pathways.
Area of Science:
- Oncology
- Cancer Biology
- Translational Medicine
Background:
- Metastatic renal cell carcinoma (mRCC) treatment has advanced from immune modulation to antiangiogenesis therapies.
- Vascular endothelial growth factor (VEGF) and mammalian target of rapamycin (mTOR) pathway inhibitors have significantly improved patient survival.
- Acquired resistance to current therapies limits long-term efficacy in kidney cancer.
Purpose of the Study:
- To review emerging antiangiogenic targets for mRCC.
- To discuss novel therapeutic strategies to overcome treatment resistance.
- To explore alternative angiogenesis pathways for improved kidney cancer outcomes.
Main Methods:
- Literature review of current and investigational mRCC treatments.
- Analysis of resistance mechanisms to antiangiogenesis and mTOR inhibitors.
- Identification of alternative angiogenic pathways as therapeutic targets.
Main Results:
- Current mRCC treatments primarily target VEGF and mTOR pathways.
- Resistance to these targeted therapies is a significant clinical challenge.
- Several alternative pathways, including angiopoietins, FGF, and PDGF, show promise.
Conclusions:
- Overcoming resistance in mRCC requires novel therapeutic approaches.
- Targeting alternative angiogenesis pathways offers a promising strategy for future kidney cancer treatment.
- Investigational agents targeting angiopoietin, FGF, and PDGF families warrant further clinical evaluation.
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