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Methyl-binding DNA capture Sequencing for Patient Tissues
Published on: October 31, 2016
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MethMarkerDB: a comprehensive cancer DNA methylation biomarker database.
Zhixian Zhu1,2, Qiangwei Zhou1,2, Yuanhui Sun1,2
1National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
Nucleic Acids Research
|October 27, 2023
Summary
Researchers developed MethMarkerDB, a database of cancer DNA methylation biomarkers identified using whole-genome bisulfite sequencing (WGBS) data. This resource aids in discovering novel biomarkers for improved cancer diagnostics and prognostics.
Area of Science:
- Genomics
- Cancer Biology
- Bioinformatics
Background:
- DNA methylation is critical in cancer development and progression.
- Clinical application of cancer DNA methylation biomarkers is of significant interest.
- Whole-genome bisulfite sequencing (WGBS) data enables precise identification of differentially methylated regions (DMRs) for biomarker discovery.
Purpose of the Study:
- To establish a comprehensive database for cancer DNA methylation biomarkers utilizing WGBS data.
- To provide tools for searching, annotating, and evaluating potential DNA methylation biomarkers.
- To identify novel pan-cancer DNA methylation biomarkers with clinical translational value.
Main Methods:
- Integrated 658 WGBS datasets and 724 curated DNA methylation biomarker genes from published literature.
- Documented over 5.4 million DMRs across 13 common cancer types.
- Developed search, annotation, diagnostic, and prognostic functions within the database.
Main Results:
- Identified known DNA methylation biomarkers.
- Discovered 781 hypermethylated and 5245 hypomethylated pan-cancer DMRs, linked to 693 and 2172 genes, respectively.
- Highlighted the clinical translational potential of these novel biomarkers.
Conclusions:
- MethMarkerDB serves as a valuable resource for identifying and validating cancer DNA methylation biomarkers.
- The database facilitates the discovery of novel pan-cancer biomarkers.
- MethMarkerDB is expected to accelerate the clinical application of DNA methylation biomarkers in cancer care.
