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Pharmacogenomics in colorectal cancer: current role in clinical practice and future perspectives
Francesca Battaglin1,2, Alberto Puccini1, Madiha Naseem1
1Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
Abstract:
The treatment scenario of colorectal cancer (CRC) has been evolving in recent years with the introduction of novel targeted agents and new therapeutic strategies for the metastatic disease. An extensive effort has been directed to the identification of predictive biomarkers to aid patients selection and guide therapeutic choices. Pharmacogenomics represents an irreplaceable tool to individualize patients treatment based on germline and tumor acquired somatic genetic variations able to predict drugs response and risk of toxicities. The growing knowledge of CRC molecular characteristics and complex genomic makeup has played a crucial role in identifying predictive pharmacogenomic biomarkers, while supporting the rationale for the development of new drugs and treatment combinations. Clinical validation of promising biomarkers, however, is often an issue. More recently, a deeper understanding of resistance mechanisms and tumor escape dynamics under treatment pressure and the availability of novel technologies are opening new perspectives in this field. This review aims to present an overview of current pharmacogenomic biomarkers and future perspectives of pharmacogenomics in CRC, in an evolving scenario moving from a single drug-gene interactions approach to a more comprehensive genome-wide approach, comprising genomics and epigenetics.
Insights
Pharmacogenomics is revolutionizing colorectal cancer (CRC) treatment by personalizing therapies based on genetic variations. This approach aids in selecting optimal treatments and predicting patient responses and toxicities for better outcomes.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Colorectal cancer (CRC) treatment is advancing with new targeted therapies for metastatic disease.
- Identifying predictive biomarkers is crucial for patient selection and guiding therapeutic decisions.
- Pharmacogenomics offers a powerful tool for personalizing CRC treatment based on genetic variations.
Purpose of the Study:
- To provide an overview of current pharmacogenomic biomarkers in colorectal cancer.
- To explore future perspectives of pharmacogenomics in CRC treatment.
- To highlight the shift towards comprehensive, genome-wide approaches in CRC pharmacogenomics.
Main Methods:
- Review of current literature on pharmacogenomic biomarkers in colorectal cancer.
- Analysis of evolving therapeutic strategies and resistance mechanisms.
- Discussion of novel technologies and their impact on pharmacogenomic research.
Main Results:
- Pharmacogenomics enables individualized treatment by analyzing germline and somatic genetic variations.
- Knowledge of CRC molecular characteristics is key to identifying predictive biomarkers.
- Clinical validation of biomarkers remains a significant challenge.
Conclusions:
- Pharmacogenomics is essential for personalized colorectal cancer treatment, predicting drug response and toxicity.
- Future CRC pharmacogenomics will involve comprehensive genome-wide analyses, including genomics and epigenetics.
- Understanding resistance mechanisms and leveraging new technologies will drive future advancements.
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