Regulation of the Wnt/β-Catenin Signaling Pathway by Human Papillomavirus E6 and E7 Oncoproteins

Viruses

Jesus Omar Muñoz Bello¹  Leslie Olmedo Nieva³  Adriana Contreras Paredes²  Alma Mariana Fuentes Gonzalez¹  Leticia Rocha Zavaleta¹  Marcela Lizano¹ 

[1] Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Av. Universidad 3000, Col. Ciudad Universitaria, Del. Coyoacán, México DF CP. 04510, Mexico; E-Mails:;Unidad de Investigación Biomédica en Cáncer/Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Av. San Fernando 22, Col. Sección XVI, Del. Tlalpan, México DF CP. 14080, Mexico; E-Mail:;Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Col. Ciudad Universitaria, Del. Coyoacán, México DF CP. 04510, Mexico; E-Mail:

关键词: Wnt/β-catenin;    HPV E6 and E7 oncoproteins;    HPV-related cancers;   

DOI  :  10.3390/v7082842

来源: mdpi

【 摘 要 】

Cell signaling pathways are the mechanisms by which cells transduce external stimuli, which control the transcription of genes, to regulate diverse biological effects. In cancer, distinct signaling pathways, such as the Wnt/β-catenin pathway, have been implicated in the deregulation of critical molecular processes that affect cell proliferation and differentiation. For example, changes in β-catenin localization have been identified in Human Papillomavirus (HPV)-related cancers as the lesion progresses. Specifically, β-catenin relocates from the membrane/cytoplasm to the nucleus, suggesting that this transcription regulator participates in cervical carcinogenesis. The E6 and E7 oncoproteins are responsible for the transforming activity of HPV, and some studies have implicated these viral oncoproteins in the regulation of the Wnt/β-catenin pathway. Nevertheless, new interactions of HPV oncoproteins with cellular proteins are emerging, and the study of the biological effects of such interactions will help to understand HPV-related carcinogenesis. This review addresses the accumulated evidence of the involvement of the HPV E6 and E7 oncoproteins in the activation of the Wnt/β-catenin pathway.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.