Intrinsic cellular defenses against human immunodeficiency viruses.
Intrinsic cellular defenses against human immunodeficiency viruses.
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DOI:
10.1016/j.immuni.2012.08.013
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发表时间:
2012-09-21
期刊:
影响因子:
32.4
通讯作者:
Bieniasz PD
中科院分区:
文献类型:
--
作者:
Blanco-Melo D;Venkatesh S;Bieniasz PD
Viral infections are often detrimental to host survival and reproduction. Consequently, hosts have evolved a variety of mechanisms to defend themselves against viruses. A component of this arsenal is a set of proteins, termed restriction factors, which exhibit direct antiviral activity. Among these are several classes of proteins (APOBEC3, TRIM5, Tetherin and SAMHD1) that inhibit the replication of human and simian immunodeficiency viruses. Here, we outline the features, mechanisms, and evolution of these defense mechanisms. We also speculate on how restriction factors arose, how they might interact with the conventional innate and adaptive immune systems and how an understanding of these intrinsic cellular defenses might be usefully exploited.
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