| Autor: |
Antje M. Richter, Tanja Haag, Sara K. Walesch, Christina E Herkt, Reinhard Dammann |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Genes & Cancer |
| ISSN: |
1947-6027 |
| DOI: |
10.18632/genesandcancer.28 |
| Popis: |
Epigenetic gene inactivation through promoter hypermethylation is an important aberration involved in the silencing of tumor-associated genes in cancer. Here we identified the apoptosis associated tyrosine kinase (AATK) as an epigenetically downregulated tumor related gene. We analyzed the epigenetic regulation of AATK in several human cancer cell lines and normal tissues by methylation and expression analysis. Hypermethylation of AATK was also analyzed in 25 primary lung tumors, 30 breast cancers and 24 matching breast tissues. In normal tissues the AATK CpG island promoter was unmethylated and AATK was expressed. Hypermethylation of AATK occurred frequently in 13 out of 14 (93%) human cancer cell lines. Methylation was reversed by 5-aza-2′-deoxycytidine treatment leading to re-expression of AATK in cancer cell lines. Aberrant methylation of AATK was also revealed in primary lung (40%) and breast (53%) cancers, but was found to be significantly less methylated in matching normal breast tissues (17%; p |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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