Abstract:
:The dependence of retroviral replication on cell proliferation was described as early as 1958, although different classes of retroviruses are able to infect non-dividing cells with different efficiencies. For example, the human immunodeficiency virus (HIV) and other lentiviruses infect most non-dividing cells nearly as well as dividing cells, while the gammaretroviruses such as the murine leukemia virus (MLV) cannot infect non-dividing cells, and other retroviruses have intermediate phenotypes. One exception to the ability of HIV to infect non-dividing cells involves resting CD4+ T cells in vitro where there are multiple restrictions. However, recent data show that there is massive infection of non-activated CD4+ T cell during acute infection which suggests that the situation is different in vivo. Finally, much work trying to explain the difference between HIV and MLV in non-dividing cells has focused on describing the ability of HIV to enter the nucleus during interphase. However, we suggest that events in the viral life-cycle other than nuclear import may be more important in determining the ability of a given retrovirus to infect non-dividing cells.
journal_name
Virologyjournal_title
Virologyauthors
Yamashita M,Emerman Mdoi
10.1016/j.virol.2005.09.012subject
Has Abstractpub_date
2006-01-05 00:00:00pages
88-93issue
1eissn
0042-6822issn
1096-0341pii
S0042-6822(05)00585-4journal_volume
344pub_type
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