PMID- 31539353 OWN - NLM STAT- MEDLINE DCOM- 20200422 LR - 20200422 IS - 1868-1891 (Electronic) IS - 1868-1883 (Linking) VI - 40 IP - 1 DP - 2019 Sep 20 TI - Cholecalciferol modulates the phenotype of differentiated monocyte-derived dendritic cells without altering HIV-1 transfer to CD4+ T cells. LID - /j/hmbci.2019.40.issue-1/hmbci-2019-0003/hmbci-2019-0003.xml [pii] LID - 10.1515/hmbci-2019-0003 [doi] AB - Background Dendritic cells (DCs) play a crucial role during HIV-1 transmission due to their ability to transfer virions to susceptible CD4+ T cells, particularly in the lymph nodes during antigen presentation which favors the establishment of systemic infection. As mature dendritic cells (mDCs) exhibit a greater ability to transfer virions, compared to immature DCs (iDCs), maintenance of an iDC phenotype could decrease viral transmission. The immunomodulatory vitamin D (VitD) has been shown to reduce activation and maturation of DCs; hence, we hypothesized that it would reduce viral transference by DCs. Materials and methods We evaluated the effect of in vitro treatment with a precursor of VitD, cholecalciferol, on the activation/maturation phenotype of differentiated monocyte-derived DCs and their ability to transfer HIV-1 to autologous CD4+ T cells. Results Our findings show that although cholecalciferol decreases the activation of iDCs, it did not impact the maturation phenotype after LPS treatment nor iDCs' ability to transfer viral particles to target cells. Conclusion These findings suggest that despite cholecalciferol potentially modulates the phenotype of mucosal iDCs in vivo, such modulation might not impact the ability of these cells to transfer HIV-1 to target CD4+ T cells. FAU - Gonzalez, Sandra M AU - Gonzalez SM AD - Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, Medellin, Colombia. FAU - Aguilar-Jimenez, Wbeimar AU - Aguilar-Jimenez W AD - Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, Medellin, Colombia. FAU - Alvarez, Natalia AU - Alvarez N AD - Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, Medellin, Colombia. FAU - Rugeles, Maria T AU - Rugeles MT AD - Grupo Inmunovirologia, Facultad de Medicina, Universidad de Antioquia UdeA, Calle 70 No. 52-21, 050010 Medellin, Colombia, Phone: +57 4 2196551, Fax: 57 4 2196482. LA - eng PT - Journal Article DEP - 20190920 PL - Germany TA - Horm Mol Biol Clin Investig JT - Hormone molecular biology and clinical investigation JID - 101538885 RN - 0 (Immunologic Factors) RN - 0 (Vitamins) RN - 1C6V77QF41 (Cholecalciferol) SB - IM MH - CD4-Positive T-Lymphocytes/*drug effects/immunology/virology MH - Cells, Cultured MH - Cholecalciferol/*pharmacology MH - Dendritic Cells/*drug effects/immunology/virology MH - HIV Infections/*immunology/prevention & control/transmission/virology MH - HIV-1/*drug effects/immunology/physiology MH - Humans MH - Immunologic Factors/pharmacology MH - Monocytes/drug effects/immunology/virology MH - Virus Internalization/drug effects MH - Vitamins/*pharmacology OTO - NOTNLM OT - DC phenotype OT - HIV-1 infection OT - HIV-1 transference OT - vitamin D EDAT- 2019/09/21 06:00 MHDA- 2020/04/23 06:00 CRDT- 2019/09/21 06:00 PHST- 2019/02/11 00:00 [received] PHST- 2019/06/20 00:00 [accepted] PHST- 2019/09/21 06:00 [pubmed] PHST- 2020/04/23 06:00 [medline] PHST- 2019/09/21 06:00 [entrez] AID - /j/hmbci.ahead-of-print/hmbci-2019-0003/hmbci-2019-0003.xml [pii] AID - 10.1515/hmbci-2019-0003 [doi] PST - epublish SO - Horm Mol Biol Clin Investig. 2019 Sep 20;40(1):/j/hmbci.2019.40.issue-1/hmbci-2019-0003/hmbci-2019-0003.xml. doi: 10.1515/hmbci-2019-0003.