期刊
VIROLOGY
卷 410, 期 1, 页码 234-239出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.virol.2010.11.011
关键词
XMRV; APOBEC3G; Innate immunity; Murine leukemia virus; Retrovirus
类别
资金
- National Institute of Allergy and Infectious Diseases [R01-AI065301, R01-AI64003]
Xenotropic murine leukemia virus-related virus (XMRV) is a novel retrovirus, related to murine leukemia virus (MLV), that has been implicated in human disease. If XMRV is indeed able to replicate in humans, then one might predict that XMRV would have developed resistance to human innate antiviral resistance factors such as APOBEC3G (hA3G). In fact, we observed that XMRV and MLV are both highly sensitive to inhibition by hA3G and equally resistant to inhibition by murine APOBEC3. While several human prostate cancer cell lines were found to lack hA3G, stable expression of physiological levels of hA3G rendered these cells refractory to XMRV replication. Few human tissues fail to express hA3G, and we therefore hypothesize that XMRV replicates in one or more hA3G-negative reservoir tissues and/or that human XMRV infections are likely to be rare and potentially of zoonotic origin. (C) 2010 Elsevier Inc. All rights reserved.
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