Down-regulation of GATA-3 expression during human papillomavirus-mediated immortalization and cervical carcinogenesis

Renske D.M. Steenbergen, Vanessa E. OudeEngberink, Debbie Kramer, Henri F.J. Schrijnemakers, Rene H.M. Verheijen, Chris J.L.M. Meijer, Peter J.F. Snijders

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

To identify cellular genes that may be involved in human papillomavirus (HPV)-mediated immortalization mRNA differential display analysis was performed on preimmortal and subsequent immortal stages of four human keratinocyte cell lines transformed by HPV type 16 or 18 DNA. This yielded a cDNA fragment encoding the transcription factor GATA-3 that was strongly reduced in intensity in all immortal stages of the four cell lines. A marked reduction in both GATA-3 mRNA and protein expression in HPV-immortalized cell lines was confirmed by reverse transcriptase-polymerase chain reaction, Western blot analysis, and immunohistochemistry and was also shown to be apparent in cervical carcinoma cell lines. Immunohistochemical analysis of cervical tissue specimens showed a clear nuclear staining for GATA-3 in normal cervical squamous epithelium (n = 14) and all cervical intraepithelial neoplasia (CIN) I (n = 6) and CIN II lesions (n = 2). In contrast, 11% (1 of 9) of CIN III lesions and 67% (8 of 12) of cervical squamous cell carcinomas revealed a complete absence of GATA-3 immunostaining. Hence, complete down-regulation of GATA-3 expression represents a rather late event during cervical carcinogenesis. Whether GATA-3 down-regulation is etiologically involved in HPV-mediated immortalization and cervical carcinogenesis remains to be examined.

Original languageEnglish
Pages (from-to)1945-1951
Number of pages7
JournalAmerican Journal of Pathology
Volume160
Issue number6
DOIs
Publication statusPublished - 1 Jan 2002

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