@article{5fbb9bcfb35f4e2b993850af5ed03787,
title = "HPV16 E7 Genetic Conservation Is Critical to Carcinogenesis",
abstract = "Although most cervical human papillomavirus type 16 (HPV16) infections become undetectable within 1–2 years, persistent HPV16 causes half of all cervical cancers. We used a novel HPV whole-genome sequencing technique to evaluate an exceptionally large collection of 5,570 HPV16-infected case-control samples to determine whether viral genetic variation influences risk of cervical precancer and cancer. We observed thousands of unique HPV16 genomes; very few women shared the identical HPV16 sequence, which should stimulate a careful re-evaluation of the clinical implications of HPV mutation rates, transmission, clearance, and persistence. In case-control analyses, HPV16 in the controls had significantly more amino acid changing variants throughout the genome. Strikingly, E7 was devoid of variants in precancers/cancers compared to higher levels in the controls; we confirmed this in cancers from around the world. Strict conservation of the 98 amino acids of E7, which disrupts Rb function, is critical for HPV16 carcinogenesis, presenting a highly specific target for etiologic and therapeutic research.",
keywords = "E7 gene, HPV epidemiology, HPV genomics, HPV16, cervical carcinogenesis",
author = "Lisa Mirabello and Meredith Yeager and Kai Yu and Clifford, {Gary M.} and Yanzi Xiao and Bin Zhu and Michael Cullen and Boland, {Joseph F.} and Nicolas Wentzensen and Nelson, {Chase W.} and Tina Raine-Bennett and Zigui Chen and Sara Bass and Lei Song and Qi Yang and Mia Steinberg and Laurie Burdett and Michael Dean and David Roberson and Jason Mitchell and Thomas Lorey and Silvia Franceschi and Castle, {Philip E.} and Joan Walker and Rosemary Zuna and Kreimer, {Aim{\'e}e R.} and Beachler, {Daniel C.} and Allan Hildesheim and Paula Gonzalez and Carolina Porras and Burk, {Robert D.} and Mark Schiffman",
note = "Funding Information: We thank Ayax Perez Gallegos, Albert Einstein College of Medicine, for helpful input on HPV16 E6 protein structure. C.W.N. was supported by a Gerstner Scholars Fellowship from the Gerstner Family Foundation at the American Museum of Natural History . This study was funded by the intramural research program of the Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH . This project has been funded in whole or in part with federal funds from the National Cancer Institute , NIH ( HHSN261200800001E ); and, the National Cancer Institute ( CA78527 ) and the Einstein Cancer Research Center ( P30CA013330 ) from the National Cancer Institute (to R.D.B.). Work at IARC was supported by a grant from the Institut National du Cancer (INCa), France ( SHSESP 16-006 ). The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government. Publisher Copyright: {\textcopyright} 2017",
year = "2017",
month = sep,
day = "7",
doi = "10.1016/j.cell.2017.08.001",
language = "English (US)",
volume = "170",
pages = "1164--1174.e6",
journal = "Cell",
issn = "0092-8674",
publisher = "Cell Press",
number = "6",
}