Please use this identifier to cite or link to this item: https://doi.org/10.1155/2012/640894
Title: Retrovirus entry by endocytosis and cathepsin proteases
Authors: Kubo, Y.
Hayashi, H.
Matsuyama, T.
Sato, H.
Yamamoto, N. 
Issue Date: 2012
Citation: Kubo, Y., Hayashi, H., Matsuyama, T., Sato, H., Yamamoto, N. (2012). Retrovirus entry by endocytosis and cathepsin proteases. Advances in Virology 2012 : -. ScholarBank@NUS Repository. https://doi.org/10.1155/2012/640894
Abstract: Retroviruses include infectious agents inducing severe diseases in humans and animals. In addition, retroviruses are widely used as tools to transfer genes of interest to target cells. Understanding the entry mechanism of retroviruses contributes to developments of novel therapeutic approaches against retrovirus-induced diseases and efficient exploitation of retroviral vectors. Entry of enveloped viruses into host cell cytoplasm is achieved by fusion between the viral envelope and host cell membranes at either the cell surface or intracellular vesicles. Many animal retroviruses enter host cells through endosomes and require endosome acidification. Ecotropic murine leukemia virus entry requires cathepsin proteases activated by the endosome acidification. CD4-dependent human immunodeficiency virus (HIV) infection is thought to occur via endosomes, but endosome acidification is not necessary for the entry whereas entry of CD4-independent HIVs, which are thought to be prototypes of CD4-dependent viruses, is low pH dependent. There are several controversial results on the retroviral entry pathways. Because endocytosis and endosome acidification are complicatedly controlled by cellular mechanisms, the retrovirus entry pathways may be different in different cell lines. © 2012 Yoshinao Kubo et al.
Source Title: Advances in Virology
URI: http://scholarbank.nus.edu.sg/handle/10635/126776
ISSN: 16878639
DOI: 10.1155/2012/640894
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