| Autor: |
Singh, Ravesh, Ramsuran, Veron, Naranbhai, Vivek, Yende-Zuma, Nonhlanhla, Garrett, Nigel, Mlisana, Koleka, Dong, Krista L., Walker, Bruce D., Abdool Karim, Salim S., Carrington, Mary, Ndung'u, Thumbi |
| Předmět: |
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| Zdroj: |
Frontiers in Immunology; 5/5/2021, Vol. 12, pN.PAG-N.PAG, 9p |
| Abstrakt: |
HIV-1 must overcome host antiviral restriction factors for efficient replication. We hypothesized that elevated levels of bone marrow stromal cell antigen 2 (BST-2), a potent host restriction factor that interferes with HIV-1 particle release in some human cells and is antagonized by the viral protein Vpu, may associate with viral control. Using cryopreserved samples, from HIV-1 seronegative and seropositive Black women, we measured in vitro expression levels of BST-2 mRNA using a real-time PCR assay and protein levels were validated by Western blotting. The expression level of BST-2 showed an association with viral control within two independent cohorts of Black HIV infected females (r=-0.53, p=0.015, [n =21]; and r=-0.62, p=0.0006, [n=28]). DNA methylation was identified as a mechanism regulating BST-2 levels, where increased BST-2 methylation results in lower expression levels and associates with worse HIV disease outcome. We further demonstrate the ability to regulate BST-2 levels using a DNA hypomethylation drug. Our results suggest BST-2 as a factor for potential therapeutic intervention against HIV and other diseases known to involve BST-2. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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