Methylation of cottontail rabbit papillomavirus DNA and tissue-specific expression in transgenic rabbits

Xuwen Peng, C. Max Lang, John W. Kreider

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

Transgenic rabbits carrying multiple copies of CRPV genomic DNA were described previously (Peng et al. (1993) J. Virol. 67, 1698-1701). CRPV DNA was detectable in all tissues of the transgenic rabbits, howeverm the transcripts of CRPV genes only were found in skin and skin tumors. Tumor development was also restricted to skin. To study the mechanism involving tissue-specific expression of CRPV genes in rabbits, cellular DNAs, isolated from different normal tissues and skin tumors, were digested with the two isoschizomeric restriction endonucleases Msp I (methylation resistant) and Hpa II (methylation sensitive), respectively, and analyzed by Southern blot. CRPV DNA, especially its upstream regulatory region (URR), was extensively methylated in all normal tissues, but methylation was remarkably reduced in skin tumors. These data suggest that extensive methylation of CRPV genome, especially in the URR, might be a factor in controlling its tissue-specific expression.

Original languageEnglish (US)
Pages (from-to)101-108
Number of pages8
JournalVirus Research
Volume35
Issue number1
DOIs
StatePublished - Jan 1995

All Science Journal Classification (ASJC) codes

  • Cancer Research
  • Virology
  • Infectious Diseases

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