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Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
Comparative Aspects of BRAF Mutations in Canine Cancers
Hiroyuki Mochizuki1, Matthew Breen1,2,3,4
1Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA. hmochiz@ncsu.edu.
Abstract:
Activating mutations of the BRAF gene lead to constitutive activation of the MAPK pathway. The characterization and discovery of BRAF mutations in a variety of human cancers has led to the development of specific inhibitors targeting the BRAF/MAPK pathway and dramatically changed clinical outcomes in BRAF-mutant melanoma patients. Recent discovery of BRAF mutation in canine cancers underscores the importance of MAPK pathway activation as an oncogenic molecular alteration evolutionarily conserved between species. A comparative approach using the domestic dog as a spontaneous cancer model will provide new insights into the dysregulation of BRAF/MAPK pathway in carcinogenesis and facilitate in vivo studies to evaluate therapeutic strategies targeting this pathway's molecules for cancer therapy. The BRAF mutation in canine cancers may also represent a molecular marker and therapeutic target in veterinary oncology. This review article summarizes the current knowledge on BRAF mutations in human and canine cancers and discusses the potential applications of this abnormality in veterinary oncology.
Insights
BRAF mutations drive cancer by activating the MAPK pathway. Studying these mutations in dogs offers insights into human cancers and potential new treatments for veterinary oncology.
Area of Science:
- Oncology
- Molecular Biology
- Comparative Medicine
Background:
- Activating BRAF mutations constitutively activate the MAPK pathway, a key driver in various human cancers.
- BRAF mutations and MAPK pathway activation are conserved oncogenic alterations found in both human and canine cancers.
- Targeted inhibitors have improved outcomes for human melanoma patients with BRAF mutations.
Purpose of the Study:
- To review current knowledge on BRAF mutations in human and canine cancers.
- To discuss the potential of canine cancer models for understanding BRAF/MAPK pathway dysregulation.
- To explore BRAF mutations as a therapeutic target and molecular marker in veterinary oncology.
Main Methods:
- Literature review of studies on BRAF mutations in human and canine cancers.
- Comparative analysis of BRAF/MAPK pathway activation in different species.
- Discussion of therapeutic strategies targeting the BRAF/MAPK pathway.
Main Results:
- BRAF mutations are significant oncogenic drivers in both human and canine cancers.
- Canine cancer models provide a valuable platform for studying BRAF/MAPK pathway dysregulation.
- BRAF mutations represent a conserved molecular abnormality with therapeutic potential across species.
Conclusions:
- BRAF mutations are evolutionarily conserved and play a critical role in carcinogenesis.
- Comparative oncology using dogs can yield insights into human cancer biology and treatment.
- BRAF mutations hold promise as diagnostic markers and therapeutic targets in veterinary oncology.
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