Abstract:
:Individual differences in susceptibility to human immunodeficiency virus type 1 (HIV-1) infection have been of interest for decades. We aimed to determine the contribution of large isoform of Mammalian DnaJ (MRJ-L), a HIV-1 Vpr-interacting cellular protein, to this natural variation. Expression of MRJ-L in monocyte-derived macrophages was significantly higher in HIV-infected individuals (n = 31) than their uninfected counterparts (n = 27) (p = 0.009). Fifty male homosexual subjects (20 of them are HIV-1 positive) were further recruited to examine the association between MRJ-L levels and occurrence of HIV infection. Bayesian multiple logistic regression revealed that playing a receptive role and increased levels of MRJ-L in macrophages were two risk factors for HIV-1 infection. A 1% rise in MRJ-L expression was associated with a 1.13 fold (95% CrI 1.06-1.29) increase in odds of contracting HIV-1 infection. Ex vivo experiments revealed that MRJ-L facilitated Vpr-dependent nuclear localization of virus. Infection of macrophage-tropic strain is a critical step in HIV-1 transmission. MRJ-L is a critical factor in this process; hence, subjects with higher macrophage MRJ-L levels are more vulnerable to HIV-1 infection.
journal_name
EBioMedicinejournal_title
EBioMedicineauthors
Chiang YP,Sheng WH,Shao PL,Chi YH,Chen YM,Huang SW,Shih HM,Chang LY,Lu CY,Chang SC,Hung CC,Huang LMdoi
10.1016/j.ebiom.2014.10.002subject
Has Abstractpub_date
2014-10-07 00:00:00pages
126-32issue
2-3issn
2352-3964pii
S2352-3964(14)00004-8journal_volume
1pub_type
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