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ChAMP: updated methylation analysis pipeline for Illumina BeadChips
Yuan Tian1,2, Tiffany J Morris3, Amy P Webster2
1CAS Key Lab of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute for Biological Sciences, University of Chinese Academy of Science, Chinese Academy of Sciences, Shanghai 200031, China.
The updated ChAMP package now analyzes DNA methylation data from the HumanMethylationEPIC BeadChip and 450K array. It offers enhanced features like cell-type correction and network analysis for improved biological insights.
Area of Science:
- Genomics
- Bioinformatics
- Epigenetics
Background:
- The Illumina Infinium HumanMethylationEPIC BeadChip offers expanded coverage for DNA methylation analysis compared to the 450K array.
- Accurate analysis of high-throughput DNA methylation data is crucial for understanding biological processes and disease mechanisms.
Purpose of the Study:
- To present an updated and improved version of the Bioconductor package ChAMP.
- To enable comprehensive analysis of DNA methylation data generated by both EPIC and 450K arrays.
Main Methods:
- The ChAMP package, available via Bioconductor, has been enhanced with new functionalities.
- The updated package includes methods for correcting cell-type heterogeneity.
- Network analysis and interactive graphical user interfaces have been integrated.
Main Results:
- The enhanced ChAMP package supports analysis of the latest HumanMethylationEPIC BeadChip data.
- New features improve the robustness and interpretability of DNA methylation analyses.
- The package facilitates advanced analyses such as cell-type correction and network construction.
Conclusions:
- The updated ChAMP package is a powerful tool for high-throughput DNA methylation analysis using EPIC and 450K arrays.
- Enhanced functionalities provide deeper insights into epigenetics and cellular heterogeneity.
- This tool supports researchers in leveraging comprehensive DNA methylation profiling data.
