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High-throughput methylation profiling by MCA coupled to CpG island microarray
Open accessAbstract
An abnormal pattern of DNA methylation occurs at specific genes in almost all neoplasms. The lack of high-throughput methods with high specificity and sensitivity to detect changes in DNA methylation has limited its application for clinical profiling. Here we overcome this limitation and present an improved method to identify methylated genes genome-wide by hybridizing a CpG island microarray with amplicons obtained by the methylated CpG island amplification technique (MCAM). We validated this method in three cancer cell lines and 15 primary colorectal tumors, resulting in the discovery of hundreds of new methylated genes in cancer. The sensitivity and specificity of the method to detect hypermethylated loci were 88% and 96%, respectively, according to validation by bisulfite-PCR. Unsupervised hierarchical clustering segregated the tumors into the expected subgroups based on CpG island methylator phenotype classification. In summary, MCAM is a suitable technique to discover methylated genes and to profile methylation changes in clinical samples in a high-throughput fashion.
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Cited by
Kondo, Y., Shen, L., Cheng, A. S., Ahmed, S., Boumber, Y., Charo, C., Yamochi, T., Urano, T., Furukawa, K., Kwabi-Addo, B., et al. (2008) · Nature Genetics · doi:10.1038/ng.159 · Cited by 620
Self-citationProfiling DNA Methylomes from Microarray to Genome-Scale Sequencing
Huang, Y.-W., Huang, T. H.-M., & Wang, L.-S. (2010) · Technology in Cancer Research & Treatment · doi:10.1177/153303461000900203 · Cited by 72
Self-citationYu, D.-H., Ware, C., Waterland, R. A., Zhang, J., Chen, M.-H., Gadkari, M., Kunde-Ramamoorthy, G., Nosavanh, L. M., & Shen, L. (2013) · Molecular and Cellular Biology · doi:10.1128/mcb.01124-12 · Cited by 48
Self-citationProgressive age-dependent DNA methylation changes start before adulthood in mouse tissues
Takasugi, M. (2011) · Mechanisms of Ageing and Development · doi:10.1016/j.mad.2010.12.003 · Cited by 43
Metadata
- Authors
- Estécio, M. R. H., Yan, P. S., Ibrahim, A. E. K., Tellez, C. S., Shen, L., Huang, T. H.-M., & Issa, J.-P. J.
- Venue
- Genome Research
- Publisher
- Cold Spring Harbor Laboratory
- Published
- 2007-09-04
- Volume
- 17
- Issue
- 10
- Pages
- 1529-1536
- ISSN
- 1088-9051 (ISSN-L)
- OpenAlex
- W2147049379
- Cited by
- 166
- References
- 0
- Type
- posted content
- Language
- en
- Open access
- bronze
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- Estécio, M. R. H., Yan, P. S., Ibrahim, A. E. K., Tellez, C. S., Shen, L., Huang, T. H.-M., & Issa, J.-P. J. (2007). High-throughput methylation profiling by MCA coupled to CpG island microarray. Genome Research. https://doi.org/10.1101/gr.6417007
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