Related Experiment Video
Updated: Dec 1, 2025

The Use of Reverse Phase Protein Arrays RPPA to Explore Protein Expression Variation within Individual Renal Cell Cancers
Published on: January 22, 2013
Molecular Subsets in Renal Cancer Determine Outcome to Checkpoint and Angiogenesis Blockade
Robert J Motzer1, Romain Banchereau2, Habib Hamidi2
1Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
Abstract:
Integrated multi-omics evaluation of 823 tumors from advanced renal cell carcinoma (RCC) patients identifies molecular subsets associated with differential clinical outcomes to angiogenesis blockade alone or with a checkpoint inhibitor. Unsupervised transcriptomic analysis reveals seven molecular subsets with distinct angiogenesis, immune, cell-cycle, metabolism, and stromal programs. While sunitinib and atezolizumab + bevacizumab are effective in subsets with high angiogenesis, atezolizumab + bevacizumab improves clinical benefit in tumors with high T-effector and/or cell-cycle transcription. Somatic mutations in PBRM1 and KDM5C associate with high angiogenesis and AMPK/fatty acid oxidation gene expression, while CDKN2A/B and TP53 alterations associate with increased cell-cycle and anabolic metabolism. Sarcomatoid tumors exhibit lower prevalence of PBRM1 mutations and angiogenesis markers, frequent CDKN2A/B alterations, and increased PD-L1 expression. These findings can be applied to molecularly stratify patients, explain improved outcomes of sarcomatoid tumors to checkpoint blockade versus antiangiogenics alone, and develop personalized therapies in RCC and other indications.
Insights
This study analyzed 823 advanced renal cell carcinoma (RCC) tumors, revealing molecular subtypes that predict response to anti-angiogenesis and immunotherapy. Tailoring treatments based on these subtypes can improve patient outcomes.
Area of Science:
- Oncology
- Genomics
- Immunotherapy
Background:
- Advanced renal cell carcinoma (RCC) treatment response varies significantly.
- Understanding molecular drivers is crucial for personalized therapy in RCC.
Purpose of the Study:
- To identify molecular subsets in advanced RCC patients.
- To correlate these subsets with clinical outcomes of angiogenesis blockade and checkpoint inhibitors.
- To explore the impact of specific mutations and tumor characteristics on treatment response.
Main Methods:
- Integrated multi-omics analysis of 823 advanced RCC tumors.
- Unsupervised transcriptomic analysis to define molecular subsets.
- Correlation of molecular features with clinical outcomes and somatic mutations.
Main Results:
- Seven distinct molecular subsets identified, characterized by unique angiogenesis, immune, cell-cycle, metabolism, and stromal programs.
- Sunitinib and atezolizumab + bevacizumab showed efficacy in high-angiogenesis subsets.
- Atezolizumab + bevacizumab demonstrated improved benefit in tumors with high T-effector and/or cell-cycle transcription.
- Specific mutations (PBRM1, KDM5C, CDKN2A/B, TP53) were associated with distinct molecular programs and metabolic pathways.
- Sarcomatoid tumors showed unique molecular profiles, including lower angiogenesis markers and increased PD-L1 expression.
Conclusions:
- Molecular stratification of RCC patients can predict treatment response to angiogenesis inhibitors and checkpoint inhibitors.
- Findings explain differential outcomes observed in sarcomatoid tumors.
- Results support the development of personalized therapeutic strategies for RCC.
More Related Videos
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Adaptive Mechanisms in Cancer Cells
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Regulation of Angiogenesis and Blood Supply

