Investigators reported that Vpr counteracts lysosomal-associated transmembrane protein 5 (LAPTM5), a potent inhibitor of HIV-1 particle infectivity, to enhance HIV-1 infection in macrophages.
[Nature Communications]
6445218 ZD42PEJZ items 1 apa 0 default asc 1 163642 https://www.stemcellsciencenews.com/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3A%22zotpress-23195d5cd6a4a8d61650bbca6aa91b3c%22%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22ZD42PEJZ%22%2C%22library%22%3A%7B%22id%22%3A6445218%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Zhao%20et%20al.%22%2C%22parsedDate%22%3A%222021-06-17%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EZhao%2C%20L.%2C%20Wang%2C%20S.%2C%20Xu%2C%20M.%2C%20He%2C%20Y.%2C%20Zhang%2C%20X.%2C%20Xiong%2C%20Y.%2C%20Sun%2C%20H.%2C%20Ding%2C%20H.%2C%20Geng%2C%20W.%2C%20Shang%2C%20H.%2C%20%26amp%3B%20Liang%2C%20G.%20%282021%29.%20Vpr%20counteracts%20the%20restriction%20of%20LAPTM5%20to%20promote%20HIV-1%20infection%20in%20macrophages.%20%3Ci%3ENature%20Communications%3C%5C%2Fi%3E%2C%20%3Ci%3E12%3C%5C%2Fi%3E%281%29%2C%203691.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41467-021-24087-8%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1038%5C%2Fs41467-021-24087-8%3C%5C%2Fa%3E%20%3Ca%20title%3D%27Cite%20in%20RIS%20Format%27%20class%3D%27zp-CiteRIS%27%20href%3D%27https%3A%5C%2F%5C%2Fwww.stemcellsciencenews.com%5C%2Fwp-content%5C%2Fplugins%5C%2Fzotpress%5C%2Flib%5C%2Frequest%5C%2Frequest.cite.php%3Fapi_user_id%3D6445218%26amp%3Bitem_key%3DZD42PEJZ%27%3ECite%3C%5C%2Fa%3E%20%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Vpr%20counteracts%20the%20restriction%20of%20LAPTM5%20to%20promote%20HIV-1%20infection%20in%20macrophages%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Li%22%2C%22lastName%22%3A%22Zhao%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Shumei%22%2C%22lastName%22%3A%22Wang%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Meng%22%2C%22lastName%22%3A%22Xu%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yang%22%2C%22lastName%22%3A%22He%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Xiaowei%22%2C%22lastName%22%3A%22Zhang%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ying%22%2C%22lastName%22%3A%22Xiong%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Hong%22%2C%22lastName%22%3A%22Sun%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Haibo%22%2C%22lastName%22%3A%22Ding%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Wenqing%22%2C%22lastName%22%3A%22Geng%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Hong%22%2C%22lastName%22%3A%22Shang%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Guoxin%22%2C%22lastName%22%3A%22Liang%22%7D%5D%2C%22abstractNote%22%3A%22The%20HIV-1%20accessory%20proteins%20Vif%2C%20Vpu%2C%20and%20Nef%20can%20promote%20infection%20by%20overcoming%20the%20inhibitory%20effects%20of%20the%20host%20cell%20restriction%20factors%20APOBEC3G%2C%20Tetherin%2C%20and%20SERINC5%2C%20respectively.%20However%2C%20how%20the%20HIV-1%20accessory%20protein%20Vpr%20enhances%20infection%20in%20macrophages%20but%20not%20in%20CD4%2B%20T%20cells%20remains%20elusive.%20Here%2C%20we%20report%20that%20Vpr%20counteracts%20lysosomal-associated%20transmembrane%20protein%205%20%28LAPTM5%29%2C%20a%20potent%20inhibitor%20of%20HIV-1%20particle%20infectivity%2C%20to%20enhance%20HIV-1%20infection%20in%20macrophages.%20LAPTM5%20transports%20HIV-1%20envelope%20glycoproteins%20to%20lysosomes%20for%20degradation%2C%20thereby%20inhibiting%20virion%20infectivity.%20Vpr%20counteracts%20the%20restrictive%20effects%20of%20LAPTM5%20by%20triggering%20its%20degradation%20via%20DCAF1.%20In%20the%20absence%20of%20Vpr%2C%20the%20silencing%20of%20LAPTM5%20precisely%20phenocopied%20the%20effect%20of%20Vpr%20on%20HIV-1%20infection.%20In%20contrast%2C%20Vpr%20did%20not%20enhance%20HIV-1%20infection%20in%20the%20absence%20of%20LAPTM5.%20Moreover%2C%20LAPTM5%20was%20highly%20expressed%20in%20macrophages%20but%20not%20in%20CD4%2B%20T%20lymphocytes.%20Re-expressing%20LAPTM5%20reconstituted%20the%20Vpr-dependent%20promotion%20of%20HIV-1%20infection%20in%20primary%20CD4%2B%20T%20cells%2C%20as%20observed%20in%20macrophages.%20Herein%2C%20we%20demonstrate%20the%20molecular%20mechanism%20used%20by%20Vpr%20to%20overcome%20LAPTM5%20restriction%20in%20macrophages%2C%20providing%20a%20potential%20strategy%20for%20anti-HIV%5C%2FAIDS%20therapeutics.%22%2C%22date%22%3A%222021-06-17%22%2C%22language%22%3A%22en%22%2C%22DOI%22%3A%2210.1038%5C%2Fs41467-021-24087-8%22%2C%22ISSN%22%3A%222041-1723%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.nature.com%5C%2Farticles%5C%2Fs41467-021-24087-8%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222021-06-18T21%3A43%3A52Z%22%7D%7D%5D%7D
Zhao, L., Wang, S., Xu, M., He, Y., Zhang, X., Xiong, Y., Sun, H., Ding, H., Geng, W., Shang, H., & Liang, G. (2021). Vpr counteracts the restriction of LAPTM5 to promote HIV-1 infection in macrophages. Nature Communications, 12(1), 3691. https://doi.org/10.1038/s41467-021-24087-8 Cite