Interplay between Epigenetics and Genetics in Cancer
Genomic instability, which occurs through both genetic mechanisms (underlying inheritable phenotypic variations caused by DNA sequence-dependent alterations, such as mutation, deletion, insertion, inversion, translocation, and chromosomal aneuploidy) and epigenomic aberrations (underlying inheritabl...
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BioMed Central
2013-12-01
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| Series: | Genomics & Informatics |
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| Online Access: | http://genominfo.org/upload/pdf/gni-11-164.pdf |
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| author | Jae Duk Choi Jong-Soo Lee |
| author_facet | Jae Duk Choi Jong-Soo Lee |
| author_sort | Jae Duk Choi |
| collection | DOAJ |
| description | Genomic instability, which occurs through both genetic mechanisms (underlying inheritable phenotypic variations caused by DNA sequence-dependent alterations, such as mutation, deletion, insertion, inversion, translocation, and chromosomal aneuploidy) and epigenomic aberrations (underlying inheritable phenotypic variations caused by DNA sequence-independent alterations caused by a change of chromatin structure, such as DNA methylation and histone modifications), is known to promote tumorigenesis and tumor progression. Mechanisms involve both genomic instability and epigenomic aberrations that lose or gain the function of genes that impinge on tumor suppression/prevention or oncogenesis. Growing evidence points to an epigenome-wide disruption that involves large-scale DNA hypomethylation but specific hypermethylation of tumor suppressor genes, large blocks of aberrant histone modifications, and abnormal miRNA expression profile. Emerging molecular details regarding the modulation of these epigenetic events in cancer are used to illustrate the alterations of epigenetic molecules, and their consequent malfunctions could contribute to cancer biology. More recently, intriguing evidence supporting that genetic and epigenetic mechanisms are not separate events in cancer has been emerging; they intertwine and take advantage of each other during tumorigenesis. In addition, we discuss the collusion between epigenetics and genetics mediated by heterochromatin protein 1, a major component of heterochromatin, in order to maintain genome integrity. |
| format | Article |
| id | doaj-art-a646d8638e3343c28ad214e2a657af3b |
| institution | Kabale University |
| issn | 1598-866X 2234-0742 |
| language | English |
| publishDate | 2013-12-01 |
| publisher | BioMed Central |
| record_format | Article |
| series | Genomics & Informatics |
| spelling | doaj-art-a646d8638e3343c28ad214e2a657af3b2025-02-03T02:00:26ZengBioMed CentralGenomics & Informatics1598-866X2234-07422013-12-0111416417310.5808/GI.2013.11.4.16456Interplay between Epigenetics and Genetics in CancerJae Duk Choi0Jong-Soo Lee1Department of Life Science, College of Natural Sciences, Ajou University, Suwon 443-749, Korea.Department of Life Science, College of Natural Sciences, Ajou University, Suwon 443-749, Korea.Genomic instability, which occurs through both genetic mechanisms (underlying inheritable phenotypic variations caused by DNA sequence-dependent alterations, such as mutation, deletion, insertion, inversion, translocation, and chromosomal aneuploidy) and epigenomic aberrations (underlying inheritable phenotypic variations caused by DNA sequence-independent alterations caused by a change of chromatin structure, such as DNA methylation and histone modifications), is known to promote tumorigenesis and tumor progression. Mechanisms involve both genomic instability and epigenomic aberrations that lose or gain the function of genes that impinge on tumor suppression/prevention or oncogenesis. Growing evidence points to an epigenome-wide disruption that involves large-scale DNA hypomethylation but specific hypermethylation of tumor suppressor genes, large blocks of aberrant histone modifications, and abnormal miRNA expression profile. Emerging molecular details regarding the modulation of these epigenetic events in cancer are used to illustrate the alterations of epigenetic molecules, and their consequent malfunctions could contribute to cancer biology. More recently, intriguing evidence supporting that genetic and epigenetic mechanisms are not separate events in cancer has been emerging; they intertwine and take advantage of each other during tumorigenesis. In addition, we discuss the collusion between epigenetics and genetics mediated by heterochromatin protein 1, a major component of heterochromatin, in order to maintain genome integrity.http://genominfo.org/upload/pdf/gni-11-164.pdfepigenomicsgeneticsheterochromatin-specific nonhistone chromosomal protein HP-1neoplasms |
| spellingShingle | Jae Duk Choi Jong-Soo Lee Interplay between Epigenetics and Genetics in Cancer Genomics & Informatics epigenomics genetics heterochromatin-specific nonhistone chromosomal protein HP-1 neoplasms |
| title | Interplay between Epigenetics and Genetics in Cancer |
| title_full | Interplay between Epigenetics and Genetics in Cancer |
| title_fullStr | Interplay between Epigenetics and Genetics in Cancer |
| title_full_unstemmed | Interplay between Epigenetics and Genetics in Cancer |
| title_short | Interplay between Epigenetics and Genetics in Cancer |
| title_sort | interplay between epigenetics and genetics in cancer |
| topic | epigenomics genetics heterochromatin-specific nonhistone chromosomal protein HP-1 neoplasms |
| url | http://genominfo.org/upload/pdf/gni-11-164.pdf |
| work_keys_str_mv | AT jaedukchoi interplaybetweenepigeneticsandgeneticsincancer AT jongsoolee interplaybetweenepigeneticsandgeneticsincancer |