Home CONTACT Acta Virologica 2020 Acta Virologica Vol.64, No.3, p.375-379, 2020

Journal info

Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

Impact Factor = 1.82

Aims and Scope
Editorial Info

Abstracted and Indexed
Submission Guidelines

Select Journal

Webshop Cart

Your Cart is currently empty.

Info: Your browser does not accept cookies. To put products into your cart and purchase them you need to enable cookies.

Acta Virologica Vol.64, No.3, p.375-379, 2020

Title: The expression of the transcription factor TAF1 is modified by the HPV16 E2 protein
Author: J. Sánchez-Ramos, G. Pozo-Molina, E. Garrido

Abstract: High-risk human papillomaviruses (e.g., HPV16 and 18) are associated with cervical cancer occurrence and development. The early viral gene E2 encodes a protein involved in several key processes in HPV biology, such as replication, genome segregation, and viral gene transcription. E2's presence also affects the expression of a variety of cellular genes involved in a wide range of biological processes, including cell cycle regulation and apoptosis, which are mediated by E2's interaction with cellular proteins. In this report, a lentiviral system was used to express the HPV16 E2 gene in the HPV-negative C-33A cell line for several weeks. E2 expression was measured by RT-qPCR and its biological activity was evaluated using a reporter gene. In HPV16 E2-positive cells, we observed a statistically significant increase in mRNA and protein levels of TAF1 and p27, a basal transcription factor and one of its target genes, respectively. To our knowledge, this is the first study showing that the viral protein HPV16 E2 upregulates TAF1 expression. This suggests that E2's expression promotes a transcriptionally-favorable cellular environment that allows HPV to successfully complete its replication cycle.

Keywords: HPV16; E2 protein; transcription; TAF1 regulation
Published online: 10-Aug-2020
Year: 2020, Volume: 64, Issue: 3 Page From: 375, Page To: 379

download file

© AEPress s.r.o
Copyright notice: For any permission to reproduce, archive or otherwise use the documents in the ELiS, please contact AEP.