期刊
VIROLOGY
卷 314, 期 1, 页码 196-205出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S0042-6822(03)00390-8
关键词
human papillomavirus; HPV; E6 and E7 oncogenes; keratinocyte; differentiation; cornified cell envelope; microarray; telomerase; p53
类别
资金
- NIA NIH HHS [R01 AG18265, R01 AG018265, R01 AG018265-01, T32 AG00214, R01 AG018265-02] Funding Source: Medline
In this study, we used oligonucleotide microarray analysis to determine which cellular genes are regulated by the human papillomavirus type 16 (HPV-16) E6 oncoprotein. We found that E6 causes the downregulation of a large number of cellular genes involved in keratinocyte differentiation, including genes such as small proline-rich proteins, transglutaminase, involucrin, elafin, and cytokeratins, which are normally involved in the production of the cornified cell envelope. In contrast, E6 upregulates several genes, such as vimentin, that are usually expressed in mesenchymal lineages. E6 also modulates levels of genes involved in inflammation, including Cox-1 and Nag-1. By using E6 mutants that differentially target p53 for degradation, we determined that E6 regulates cellular genes by both p53-dependent and independent mechanisms. The microarray data also indicate that HPV-16 E6 modulates certain effects of HPV-16 E7 on cellular gene expression. The identification of E6-regulated genes in this analysis provides a basis for further studies on their role in HPV infection and cellular transformation. (C) 2003 Elsevier Science (USA). All rights reserved.
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