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| Content Provider | PubMed Central |
|---|---|
| Author | Anna, Smed-sörensen Karin, Loré Vasudevan, Jayanand Louder, Mark K. Andersson, Jan Mascola, John R. Spetz, Anna-lena Koup, Richard A. |
| Copyright Year | 2005 |
| Abstract | Human immunodeficiency virus type 1 (HIV-1) infection of dendritic cells (DCs) plays an important role in HIV-1 transmission and pathogenesis. Here, we studied the susceptibility of ex vivo-isolated CD11c+ myeloid DCs (MDCs) and CD123+ plasmacytoid DCs (PDCs) to HIV-1 infection and the function of these cells early after infection. Both DC subsets were susceptible to CCR5- and CXCR4-using HIV-1 isolates (BaL and IIIB, respectively). However, MDCs were more susceptible to HIV-1BaL infection than donor-matched PDCs. In addition, HIV-1BaL infected MDCs more efficiently than HIV-1IIIB, whereas PDCs were equally susceptible to both isolates. While exposure to HIV-1 alone resulted in only weak maturation of DCs, Toll-like receptor 7/8 ligation induced full maturation in both infected and uninfected DCs. Maturation did not increase HIV-1 replication in infected DCs, and infected DCs retained their ability to produce tumor necrosis factor alpha after stimulation. Both HIV-1 isolates induced alpha interferon production exclusively in PDCs, irrespective of productive infection. In conclusion, PDCs and MDCs were susceptible to HIV-1 infection, but neither displayed functional defects as a consequence of infection. The difference in susceptibility of PDCs and MDCs to HIV-1 may have implications for HIV-1 transmission and DC-mediated transfer of HIV-1 to T cells. |
| Related Links | http://dx.doi.org/10.1128/jvi.79.14.8861-8869.2005 |
| Ending Page | 8869 |
| Page Count | 9 |
| Starting Page | 8861 |
| File Format | |
| ISSN | 0022538X |
| e-ISSN | 10985514 |
| Journal | Journal of Virology |
| Issue Number | 14 |
| Volume Number | 79 |
| Language | English |
| Publisher | American Society for Microbiology |
| Publisher Date | 2005-07-15 |
| Access Restriction | Open |
| Rights Holder | American Society for Microbiology |
| Subject Keyword | Immunology Virology Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Virology Immunology Microbiology Insect Science |
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