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Published on: December 9, 2015
Mutational Signatures: From Methods to Mechanisms
Yoo-Ah Kim1, Mark D M Leiserson2, Priya Moorjani3
1National Center of Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland 20894, USA;
Abstract:
Mutations are the driving force of evolution, yet they underlie many diseases, in particular, cancer. They are thought to arise from a combination of stochastic errors in DNA processing, naturally occurring DNA damage (e.g., the spontaneous deamination of methylated CpG sites), replication errors, and dysregulation of DNA repair mechanisms. High-throughput sequencing has made it possible to generate large datasets to study mutational processes in health and disease. Since the emergence of the first mutational process studies in 2012, this field is gaining increasing attention and has already accumulated a host of computational approaches and biomedical applications.
Insights
Mutations drive evolution and disease, arising from DNA errors and damage. Advanced sequencing and computational methods now allow detailed study of these mutational processes.
Area of Science:
- Genetics and Molecular Biology
- Evolutionary Biology
- Cancer Research
Background:
- Mutations are fundamental to evolution but also cause diseases like cancer.
- They originate from DNA processing errors, natural DNA damage, and impaired DNA repair.
- The study of mutational processes has rapidly advanced since 2012.
Purpose of the Study:
- To explore the origins and mechanisms of mutations.
- To highlight the role of mutations in disease, particularly cancer.
- To discuss the impact of high-throughput sequencing on this research field.
Main Methods:
- Utilizing high-throughput sequencing to generate large-scale genomic datasets.
- Applying computational approaches to analyze mutational signatures and processes.
- Investigating the interplay between DNA processing, damage, and repair.
Main Results:
- Identified various sources contributing to mutation occurrence.
- Demonstrated the significance of mutational processes in understanding disease etiology.
- Showcased the power of genomic data in dissecting complex biological questions.
Conclusions:
- Mutational processes are key to understanding both evolution and disease.
- High-throughput sequencing and computational tools have revolutionized the study of mutations.
- This field holds significant promise for future biomedical applications.
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