PMID- 16972763 OWN - NLM STAT- MEDLINE DCOM- 20061101 LR - 20220330 IS - 1043-0342 (Print) IS - 1043-0342 (Linking) VI - 17 IP - 9 DP - 2006 Sep TI - Development of a synthetic promoter for macrophage gene therapy. PG - 949-59 AB - Macrophages have the potential to deliver therapeutic genes to many target tissues. Macrophage-specific synthetic promoters (SPs) generated by random ligation of myeloid/macrophage cis elements had activity up to 100-fold that of a native macrophage promoter in macrophage cell lines, but were minimally active in nonmyeloid cells. Mouse bone marrow cells (BMCs) transduced ex vivo with lentivectors expressing green fluorescent protein (GFP) driven either by an SP (SP-GFP) or a cytomegalovirus (CMV) promoter (CMV-GFP) were used for syngeneic transplantation of lethally irradiated mice. Blood leukocytes showed stable GFP expression for up to 15 months after transplantation. SP-GFP expression was selective for CD11b+ macrophages, whereas CMV-GFP expression was observed in erythrocytes, as well as in both CD11b+ and CD11b- leukocytes. Furthermore, SP-GFP expression was much stronger than CMV-GFP expression in CD11b+ macrophages. apoE-/- BMCs transduced with the lentiviral vector encoding human apoE were used to transplant apoE-/- mice. Macrophage expression of apoE from 10 to 26 weeks of age significantly reduced atherosclerotic lesions in recipient apoE-/- mice. Thus, the novel SPs, especially when combined with lentivectors, are useful for macrophage-specific delivery of therapeutic genes. FAU - He, Weijing AU - He W AD - Department of Medicine, University of Texas Health Science Center at San Antonio, and South Texas Veterans Health Care System, Audie L. Murphy Division, San Antonio, TX 78229-3900, USA. FAU - Qiang, Mei AU - Qiang M FAU - Ma, Wuqiong AU - Ma W FAU - Valente, Anthony J AU - Valente AJ FAU - Quinones, Marlon P AU - Quinones MP FAU - Wang, Wen AU - Wang W FAU - Reddick, Robert L AU - Reddick RL FAU - Xiao, Qifu AU - Xiao Q FAU - Ahuja, Seema S AU - Ahuja SS FAU - Clark, Robert A AU - Clark RA FAU - Freeman, Gregory L AU - Freeman GL FAU - Li, Senlin AU - Li S LA - eng GR - R01 AG019519/AG/NIA NIH HHS/United States GR - R01 AI020866/AI/NIAID NIH HHS/United States GR - AI20866/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Hum Gene Ther JT - Human gene therapy JID - 9008950 RN - 0 (Apolipoproteins E) RN - 0 (DNA Primers) SB - IM MH - Animals MH - Apolipoproteins E/biosynthesis/genetics MH - Atherosclerosis/therapy MH - Base Sequence MH - Blotting, Western MH - Bone Marrow/metabolism MH - Cell Line MH - DNA Primers MH - Female MH - Flow Cytometry MH - *Genetic Therapy MH - Genetic Vectors MH - Humans MH - Lentivirus/genetics MH - Macrophages, Peritoneal/*cytology MH - Mice MH - Mice, Inbred C57BL MH - *Promoter Regions, Genetic EDAT- 2006/09/16 09:00 MHDA- 2006/11/02 09:00 CRDT- 2006/09/16 09:00 PHST- 2006/09/16 09:00 [pubmed] PHST- 2006/11/02 09:00 [medline] PHST- 2006/09/16 09:00 [entrez] AID - 10.1089/hum.2006.17.949 [doi] PST - ppublish SO - Hum Gene Ther. 2006 Sep;17(9):949-59. doi: 10.1089/hum.2006.17.949.