Aberrant CpG Island Hypermethylation Along Multistep Hepatocarcinogenesis
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چکیده
منابع مشابه
Genomic insights into cancer-associated aberrant CpG island hypermethylation
Carcinogenesis is thought to occur through a combination of mutational and epimutational events that disrupt key pathways regulating cellular growth and division. The DNA methylomes of cancer cells can exhibit two striking differences from normal cells; a global reduction of DNA methylation levels and the aberrant hypermethylation of some sequences, particularly CpG islands (CGIs). This aberran...
متن کاملPredicting aberrant CpG island methylation.
Epigenetic silencing associated with aberrant methylation of promoter region CpG islands is one mechanism leading to loss of tumor suppressor function in human cancer. Profiling of CpG island methylation indicates that some genes are more frequently methylated than others, and that each tumor type is associated with a unique set of methylated genes. However, little is known about why certain ge...
متن کاملCpG island hypermethylation in human astrocytomas.
Astrocytomas are common and lethal human brain tumors. We have analyzed the methylation status of over 28,000 CpG islands and 18,000 promoters in normal human brain and in astrocytomas of various grades using the methylated CpG island recovery assay. We identified 6,000 to 7,000 methylated CpG islands in normal human brain. Approximately 5% of the promoter-associated CpG islands in the normal b...
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Esophageal adenocarcinoma (EAC) is thought to develop through a multistage process in which Barrett's metaplasia progresses through low- and high-grade dysplasia to invasive cancer. Transcriptional silencing of tumor suppressor genes by promoter CpG island hypermethylation has been observed in many types of human cancer. Analysis of CpG island hypermethylation in EAC has thus far been limited t...
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Esophageal adenocarcinoma (EAC) is thought to develop through a multistage process in which Barrett’s metaplasia progresses through lowand high-grade dysplasia to invasive cancer. Transcriptional silencing of tumor suppressor genes by promoter CpG island hypermethylation has been observed in many types of human cancer. Analysis of CpG island hypermethylation in EAC has thus far been limited to ...
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ژورنال
عنوان ژورنال: The American Journal of Pathology
سال: 2003
ISSN: 0002-9440
DOI: 10.1016/s0002-9440(10)63495-5