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Updated: Jan 13, 2026

Single Droplet Digital Polymerase Chain Reaction for Comprehensive and Simultaneous Detection of Mutations in Hotspot Regions
Published on: September 25, 2018
Advances and Challenges in KRAS Mutation Detection and Clinical Implications
Maryam Sadat Mirlohi1,2, Tooba Yousefi1, Javad Razaviyan1
1Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran.
Abstract:
Aberrant activation of the RAS signaling pathway is a halmark of various cancers. This activation, is often caused by mutations in RAS genes or other pathway components and, drivesi uncontrolled cell growth and proliferation. Studies have demonstrated that certain codon mutations can significantly influence the clinical outcomes of cancer patients. Historically, KRAS was considered "undruggable"; however, recent advancements in drug discovery have led to the development of promising KRAS inhibitors. Accurately identifying the specific type of KRAS mutation in a patient is essential for making optimal treatment decisions. Several methods have been developed for detecting KRAS mutations to address this need, focusing on creating robust, rapid, sensitive, accurate, and cost-effective approaches, particularly for point-of-care applications. Starting with the Ras family and RASopathies, this review provides a comprehensive overview of KRAS mutation detection methods, ranging from research-use-only techniques to in vitro diagnostic-certified tests. Published results are critically evaluated in terms of accuracy, sensitivity, cost, throughput, and suitability for various sample types and clinical settings. This, offers researchers and clinicians an up-to-date resource for.
Insights
KRAS mutations drive cancer by activating signaling pathways. New detection methods are crucial for developing targeted therapies and improving patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Aberrant RAS signaling pathway activation is a hallmark of many cancers, often driven by RAS gene mutations.
- Specific codon mutations in RAS genes significantly impact cancer patient outcomes.
- KRAS was historically considered undruggable, but novel inhibitors are emerging.
Purpose of the Study:
- To provide a comprehensive overview of KRAS mutation detection methods.
- To critically evaluate existing methods for accuracy, sensitivity, cost, and clinical applicability.
- To guide researchers and clinicians in selecting appropriate diagnostic tools.
Main Methods:
- Review of various KRAS mutation detection techniques, from research-use-only to in vitro diagnostics.
- Critical evaluation of published results based on key performance metrics.
- Analysis of suitability for different sample types and clinical settings.
Main Results:
- Numerous methods for KRAS mutation detection have been developed, aiming for robustness, speed, sensitivity, accuracy, and cost-effectiveness.
- These methods range from basic research tools to certified clinical diagnostic tests.
- Published data on method performance varies, necessitating careful evaluation.
Conclusions:
- Accurate KRAS mutation identification is essential for personalized cancer treatment strategies.
- The development of effective KRAS inhibitors highlights the importance of reliable detection methods.
- This review serves as a resource for understanding the landscape of KRAS mutation detection technologies.
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