کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6138893 | 1594229 | 2016 | 6 صفحه PDF | دانلود رایگان |
- The E1HPV16 mRNA is produced from the early P14 promoter in cervical neoplasms.
- The P14 usage is a common future of CIN and squamous cell carcinomas.
- Mechanism of E1HPV16 mRNA transcription in naturally infected cells is elucidated.
High-risk human papillomavirus (HR-HPV) persistent infection is responsible for the development of the majority of cervical cancers. The therapy against HPV-associated cancer requires knowledge of the viral gene expression mechanisms. In this study, the polyadenylated polycistronic transcripts containing full-size E1ORF and produced from the early P14 promoter were detected for the first time in cervical tumors with episomal forms of the HPV16 genome. P14-initiated mRNAs were revealed also in precancerous lesions. The amount of P14-initiated transcripts was significantly less compared to transcripts initiated from the major P97 HPV16 promoter in cervical intraepithelial neoplasms and squamous cell carcinomas. The ratios of P97/P14-transcripts determined by qRT-PCR were unique for each clinical sample and varied in quite wide ranges independent of disease progression stages or tumor grade. These data suggest that the levels of P14- and P97-transcripts are regulated independently from each other in cervical neoplasms.
Journal: Virology - Volume 488, 15 January 2016, Pages 196-201