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Promoter hypomethylation of a novel cancer/testis antigen gene CAGE is correlated with its aberrant expression and is seen in premalignant stage of gastric carcinoma
DC Field | Value | Language |
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dc.contributor.author | 이윤실 | - |
dc.date.accessioned | 2015-07-15T16:58:46Z | - |
dc.date.available | 2015-07-15T16:58:46Z | - |
dc.date.issued | 2003 | - |
dc.identifier.issn | 0006-291X | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/113982 | - |
dc.description.abstract | Previously, we reported the identification and characterization of a novel cancer/testis antigen gene, CAGE4, that was expressed in various histological types of tumors, but not in normal tissues, with the exception of the testis. To date, molecular mechanisms for the expression of CAGE have never been studied. In our expression analysis, we found that some cancer cell lines did not express CAGE. The expression of CAGE could be restored in these cell lines by treatment with 5′-aza-2′-deoxycytidine, suggesting that the expression of CAGE is mainly suppressed by hypermethylation. Bisulfite sequencing analysis of the 16 CpG sites of the CAGE promoter in various cancer cell lines and tissues revealed a close relationship between the methylation status of the CAGE promoter and the expression of CAGE. The transient transfection experiments displayed that the methylation of CpG sites inhibited the CAGE promoter activity in luciferase reporter assays. The methylation of the CpG sites inhibited the binding of transcription factors, shown by a mobility shift assay. A methylation-specific PCR analysis revealed that hypomethylation of the CAGE promoter was present at frequencies of more than 60% in breast, gastric, and lung cancers, and hepatocellular carcinomas, and at frequencies of less than 40% in prostate, uterine cervical, and laryngeal cancers. Promoter hypomethylation was found in chronic gastritis (19/55, 34.5%) and liver cirrhosis (13/22, 59%), but not in normal prostate, normal colon, or chronic hepatitis. These results suggest that the methylation status of the CpG sites of CAGE determines its expression, that the hypomethylation of CAGE precedes the development of gastric cancer and hepatocellular carcinoma, and that the high frequencies of hypomethylation of CAGE, in various cancers would be valuable as a cancer diagnostic marker. | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 52~63 | - |
dc.relation.isPartOf | BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.subject.MESH | CAGE | - |
dc.subject.MESH | Hypomethylation | - |
dc.subject.MESH | Transcription | - |
dc.subject.MESH | Methylation-specific PCR | - |
dc.title | Promoter hypomethylation of a novel cancer/testis antigen gene CAGE is correlated with its aberrant expression and is seen in premalignant stage of gastric carcinoma | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiation Oncology (방사선종양학) | - |
dc.contributor.googleauthor | Bomsoo Cho | - |
dc.contributor.googleauthor | Hansoo Lee | - |
dc.contributor.googleauthor | Doo-Il Jeoung | - |
dc.contributor.googleauthor | Gyeong Hoon Kang | - |
dc.contributor.googleauthor | Yun-Sil Lee | - |
dc.contributor.googleauthor | Hae-Yeong Kim | - |
dc.contributor.googleauthor | Kyu Sang Hwang | - |
dc.contributor.googleauthor | Hyun Joo Lee | - |
dc.contributor.googleauthor | Yung-Jue Bang | - |
dc.contributor.googleauthor | ShinWu Jeong | - |
dc.identifier.doi | 10.1016/S0006-291X(03)01121-5 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A03021 | - |
dc.relation.journalcode | J00281 | - |
dc.identifier.eissn | 1090-2104 | - |
dc.identifier.pmid | 10.1016/S0006-291X(03)01121-5 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0006291X03011215 | - |
dc.subject.keyword | CAGE | - |
dc.subject.keyword | Hypomethylation | - |
dc.subject.keyword | Transcription | - |
dc.subject.keyword | Methylation-specific PCR | - |
dc.contributor.alternativeName | Lee, Yun Sil | - |
dc.contributor.affiliatedAuthor | Lee, Yun Sil | - |
dc.rights.accessRights | not free | - |
dc.citation.volume | 307 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 52 | - |
dc.citation.endPage | 63 | - |
dc.identifier.bibliographicCitation | BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS, Vol.307(1) : 52-63, 2003 | - |
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