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A Syngeneic Mouse Model of Metastatic Renal Cell Carcinoma for Quantitative and Longitudinal Assessment of Preclinical Therapies
Published on: April 12, 2017
Molecular diagnosis and therapy of kidney cancer
W Marston Linehan1, Gennady Bratslavsky, Peter A Pinto
1Urologic Oncology Branch, National Cancer Institute, Bethesda, Maryland 20892, USA. WML@nih.gov
Abstract:
Kidney cancer is not a single disease; it is made up of a number of cancers that occur in the kidney, each having a different histology, following a different clinical course, responding differently to therapy, and caused by a different gene. Study of the genes underlying kidney cancer has revealed that it is fundamentally a metabolic disorder. Understanding the genetic basis of cancer of the kidney has significant implications for diagnosis and management of this disease. VHL is the gene for clear cell kidney cancer. The VHL protein forms a complex that targets the hypoxia-inducible factors for ubiquitin-mediated degradation. Knowledge of this pathway provided the foundation for the development of novel therapeutic approaches now approved for treatment of this disease. MET is the gene for the hereditary form of type 1 papillary renal carcinoma and is mutated in a subset of sporadic type 1 papillary kidney cancers. Clinical trials are currently ongoing with agents targeting the tyrosine kinase domain of MET in sporadic and hereditary forms of papillary kidney cancer. BHD is the gene for the hereditary type of chromophobe kidney cancer. It is thought to be involved in energy and/or nutrient sensing through the AMPK and mTOR signaling pathways. Hereditary leiomyomatosis renal cell carcinoma, a hereditary form of type 2 papillary renal carcinoma, is caused by inactivation of a Krebs cycle enzyme due to mutation. Knowledge of these kidney cancer gene pathways has enabled new approaches in the management of this disease and has provided the foundation for the development of targeted therapeutics.
Insights
Kidney cancer comprises various subtypes, fundamentally a metabolic disorder driven by distinct genes. Understanding these genetic pathways, like VHL, MET, and BHD, is crucial for developing targeted therapies and improving patient management.
Area of Science:
- Oncology
- Genetics
- Metabolic Disorders
Background:
- Kidney cancer is a heterogeneous disease with diverse genetic underpinnings.
- Genetic studies reveal kidney cancer is fundamentally a metabolic disorder.
- Specific genes (VHL, MET, BHD) are linked to distinct kidney cancer subtypes.
Purpose of the Study:
- To explore the genetic basis of kidney cancer.
- To understand the implications of genetic discoveries for diagnosis and management.
- To highlight the development of targeted therapeutics based on genetic pathways.
Main Methods:
- Review of genetic studies on kidney cancer.
- Analysis of gene-specific pathways (VHL, MET, BHD).
- Examination of molecular mechanisms and therapeutic implications.
Main Results:
- VHL gene mutations are key in clear cell kidney cancer, leading to targeted therapies.
- MET gene mutations are implicated in papillary renal carcinoma, with ongoing clinical trials.
- BHD gene mutations are associated with chromophobe kidney cancer, linked to energy sensing pathways.
- Inactivation of Krebs cycle enzymes due to mutations causes hereditary leiomyomatosis renal cell carcinoma.
Conclusions:
- Understanding kidney cancer genetics provides insights into its metabolic nature.
- Genetic knowledge facilitates improved diagnosis and personalized management strategies.
- Targeted therapies based on specific gene mutations are revolutionizing kidney cancer treatment.
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