PMID- 12414925 OWN - NLM STAT- MEDLINE DCOM- 20021213 LR - 20240410 IS - 0022-538X (Print) IS - 1098-5514 (Electronic) IS - 0022-538X (Linking) VI - 76 IP - 23 DP - 2002 Dec TI - Capture and transfer of simian immunodeficiency virus by macaque dendritic cells is enhanced by DC-SIGN. PG - 11827-36 AB - Dendritic cells (DCs) are among the first cells encountered by human and simian immunodeficiency virus (HIV and SIV) following mucosal infection. Because these cells efficiently capture and transmit virus to T cells, they may play a major role in mediating HIV and SIV infection. Recently, a C-type lectin protein present on DCs, DC-specific ICAM-3-grabbing nonintegrin (DC-SIGN), was shown to efficiently bind and present HIV and SIV to CD4(+), coreceptor-positive cells in trans. However, the significance of DC-SIGN for virus transmission and pathogenesis in vivo remains unclear. Because SIV infection of macaques may represent the best model to study the importance of DC-SIGN in HIV infection, we cloned and characterized pig-tailed macaque DC-SIGN and generated monoclonal antibodies (MAbs) against it. We demonstrate that, like human DC-SIGN, pig-tailed macaque DC-SIGN (ptDC-SIGN) is expressed on DCs and macrophages but not on monocytes, T cells, or B cells. Moderate levels of ptDC-SIGN expression were detected on the surface of DCs, and low-level expression was found on macrophages. Additionally, we show that ptDC-SIGN efficiently binds and transmits replication-competent SIVmne variants to CD4(+), coreceptor-positive cells. Moreover, transmission of virus between pig-tailed macaque DCs and CD4(+) T cells is largely ptDC-SIGN dependent. Interestingly, MAbs directed against ptDC-SIGN vary in the capacity to block transmission of different SIVmne variants. These data demonstrate that ptDC-SIGN plays a central role in transmitting virus from macaque DCs to T cells, and they suggest that SIVmne variants may differ in their interactions with ptDC-SIGN. Thus, SIVmne infection of pig-tailed macaques may provide an opportunity to investigate the significance of DC-SIGN in primate lentiviral infections. FAU - Yu Kimata, Monica T AU - Yu Kimata MT AD - Department of Virology and Immunology, Southwest Foundation for Biomedical Research, San Antonio, Texas 78227, USA. FAU - Cella, Marina AU - Cella M FAU - Biggins, Julia E AU - Biggins JE FAU - Rorex, Colin AU - Rorex C FAU - White, Robert AU - White R FAU - Hicks, Sarah AU - Hicks S FAU - Wilson, Joelle M AU - Wilson JM FAU - Patel, Parul G AU - Patel PG FAU - Allan, Jonathan S AU - Allan JS FAU - Colonna, Marco AU - Colonna M FAU - Kimata, Jason T AU - Kimata JT LA - eng GR - R56 AI047725/AI/NIAID NIH HHS/United States GR - T32 AI007522/AI/NIAID NIH HHS/United States GR - AI07522/AI/NIAID NIH HHS/United States GR - R01 AI047725/AI/NIAID NIH HHS/United States GR - AI47725/AI/NIAID NIH HHS/United States GR - AI49803/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Antibodies, Monoclonal) RN - 0 (Cell Adhesion Molecules) RN - 0 (DC-specific ICAM-3 grabbing nonintegrin) RN - 0 (Lectins, C-Type) RN - 0 (Receptors, Cell Surface) SB - IM MH - Animals MH - Antibodies, Monoclonal/pharmacology MH - Binding Sites MH - CD4-Positive T-Lymphocytes/virology MH - Cell Adhesion Molecules/antagonists & inhibitors/chemistry/genetics/*physiology MH - Cell Line MH - Dendritic Cells/*immunology/*virology MH - HIV-1/immunology/pathogenicity MH - Humans MH - Lectins, C-Type/antagonists & inhibitors/chemistry/genetics/*physiology MH - Macaca nemestrina MH - Receptors, Cell Surface/antagonists & inhibitors/chemistry/genetics/*physiology MH - Sequence Deletion MH - Simian Acquired Immunodeficiency Syndrome/etiology MH - Simian Immunodeficiency Virus/*immunology/*pathogenicity PMC - PMC136877 EDAT- 2002/11/05 04:00 MHDA- 2002/12/17 04:00 PMCR- 2002/12/01 CRDT- 2002/11/05 04:00 PHST- 2002/11/05 04:00 [pubmed] PHST- 2002/12/17 04:00 [medline] PHST- 2002/11/05 04:00 [entrez] PHST- 2002/12/01 00:00 [pmc-release] AID - 0882 [pii] AID - 10.1128/jvi.76.23.11827-11836.2002 [doi] PST - ppublish SO - J Virol. 2002 Dec;76(23):11827-36. doi: 10.1128/jvi.76.23.11827-11836.2002.