PMID- 22160624 OWN - NLM STAT- MEDLINE DCOM- 20120419 LR - 20120302 IS - 1432-8798 (Electronic) IS - 0304-8608 (Linking) VI - 157 IP - 3 DP - 2012 Mar TI - HIV-infection resistance in PMBC-derived dendritic cells modified with recombinant virus. PG - 413-21 LID - 10.1007/s00705-011-1185-7 [doi] AB - This study aimed to identify the characteristics of recombinant-adenovirus-modified PBMC-derived dendritic cells and their resistance to HIV-1 infection by integrating the CCR5∆32, CCR5siRNA, HIV-1 pol and HIV-1 int genes into a recombinant adenovirus vector using the AdEasy system. Dendritic cells (DCs) were isolated from human PBMCs from blood of healthy donors. The expression of CCR5∆32, CCR5, CXCR4 and HIV-1 p24 in PBMCs or modified cells was measured by western blot, p24 expression in cell lysates was measured by ELISA, and HIV-1 entry was measured by beta-galactosidase assay. Furthermore, T-cell immunity induced by the recombinant adenovirus was measured by ELISPOT assay. After the cells were modified by Ad-R5∆32siRNA, the expression of CCR5∆32 increased, while the expression of CCR5 and CXCR4 decreased. There was no adverse effect of adenoviral gene transfer on DC development. CD83 expression on the surface of mature DCs did not change after gene transfer. The expression of p24 remained at low levels in modified cells when challenged by HIV-1. The modified cells showed resistance to HIV-1 infection. Results indicated that recombinant-adenovirus-modified cells demonstrated good resistance to HIV-1 infection. Modification of HSC-derived immune cells, such as DCs, may be a potent strategy to resist HIV-1 infection. FAU - Xia, Cheng-Lai AU - Xia CL AD - Department of Pharmacy, The Third Affiliated Hospital, Medical University of Guangzhou, Guangzhou 510150, China. FAU - Zhu, Ping AU - Zhu P FAU - Cai, Yan-Tao AU - Cai YT FAU - Zhu, Guang-Bin AU - Zhu GB FAU - Mei, Zheng-Rong AU - Mei ZR FAU - Huang, Hanhui AU - Huang H FAU - Luo, Di-Xian AU - Luo DX FAU - Yan, Peng-Ke AU - Yan PK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111211 PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (Receptors, CCR5) RN - 0 (Receptors, HIV) RN - 0 (Recombinant Proteins) RN - 0 (pol Gene Products, Human Immunodeficiency Virus) RN - EC 2.7.7.- (HIV Integrase) SB - IM MH - Adenoviridae/*genetics MH - Dendritic Cells/*virology MH - Gene Silencing MH - *Genetic Vectors MH - HIV Integrase/biosynthesis/genetics MH - HIV-1/*pathogenicity MH - Humans MH - Receptors, CCR5/biosynthesis/genetics MH - Receptors, HIV/biosynthesis/genetics MH - Recombinant Proteins/biosynthesis/genetics MH - *Virus Attachment MH - *Virus Replication MH - pol Gene Products, Human Immunodeficiency Virus/biosynthesis/genetics EDAT- 2011/12/14 06:00 MHDA- 2012/04/20 06:00 CRDT- 2011/12/14 06:00 PHST- 2011/08/25 00:00 [received] PHST- 2011/11/29 00:00 [accepted] PHST- 2011/12/14 06:00 [entrez] PHST- 2011/12/14 06:00 [pubmed] PHST- 2012/04/20 06:00 [medline] AID - 10.1007/s00705-011-1185-7 [doi] PST - ppublish SO - Arch Virol. 2012 Mar;157(3):413-21. doi: 10.1007/s00705-011-1185-7. Epub 2011 Dec 11.