PMID- 29407172 OWN - NLM STAT- MEDLINE DCOM- 20180323 LR - 20201201 IS - 1090-2104 (Electronic) IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 497 IP - 1 DP - 2018 Feb 26 TI - Nephron segment-specific gene expression using AAV vectors. PG - 19-24 LID - S0006-291X(18)30192-X [pii] LID - 10.1016/j.bbrc.2018.01.169 [doi] AB - AAV9 vector provides efficient gene transfer in all segments of the renal nephron, with minimum expression in non-renal cells, when administered retrogradely via the ureter. It is important to restrict the transgene expression to the desired cell type within the kidney, so that the physiological endpoints represent the function of the transgene expressed in that specific cell type within kidney. We hypothesized that segment-specific gene expression within the kidney can be accomplished using the highly efficient AAV9 vectors carrying the promoters of genes that are expressed exclusively in the desired segment of the nephron in combination with administration by retrograde infusion into the kidney via the ureter. We constructed AAV vectors carrying eGFP under the control of: kidney-specific cadherin (KSPC) gene promoter for expression in the entire nephron; Na(+)/glucose co-transporter (SGLT2) gene promoter for expression in the S1 and S2 segments of the proximal tubule; sodium, potassium, 2 chloride co-transporter (NKCC2) gene promoter for expression in the thick ascending limb of Henle's loop (TALH); E-cadherin (ECAD) gene promoter for expression in the collecting duct (CD); and cytomegalovirus (CMV) early promoter that provides expression in most of the mammalian cells, as control. We tested the specificity of the promoter constructs in vitro for cell type-specific expression in mouse kidney cells in primary culture, followed by retrograde infusion of the AAV vectors via the ureter in the mouse. Our data show that AAV9 vector, in combination with the segment-specific promoters administered by retrograde infusion via the ureter, provides renal nephron segment-specific gene expression. CI - Copyright (c) 2018 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Asico, Laureano D AU - Asico LD AD - Department of Medicine, The George Washington University, Washington, DC, USA. FAU - Cuevas, Santiago AU - Cuevas S AD - Department of Medicine, The George Washington University, Washington, DC, USA. FAU - Ma, Xiaobo AU - Ma X AD - Department of Medicine, The George Washington University, Washington, DC, USA. FAU - Jose, Pedro A AU - Jose PA AD - Department of Medicine, The George Washington University, Washington, DC, USA; Department of Pharmacology and Physiology, The George Washington University, Washington, DC, USA. FAU - Armando, Ines AU - Armando I AD - Department of Medicine, The George Washington University, Washington, DC, USA. FAU - Konkalmatt, Prasad R AU - Konkalmatt PR AD - Department of Medicine, The George Washington University, Washington, DC, USA. Electronic address: prk@gwu.edu. LA - eng GR - R01 DK039308/DK/NIDDK NIH HHS/United States GR - P01 HL068686/HL/NHLBI NIH HHS/United States GR - R01 HL023081/HL/NHLBI NIH HHS/United States GR - R01 DK090918/DK/NIDDK NIH HHS/United States GR - R37 HL023081/HL/NHLBI NIH HHS/United States GR - R01 HL092196/HL/NHLBI NIH HHS/United States GR - P01 HL074940/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180131 PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 SB - IM MH - Animals MH - Cells, Cultured MH - Dependovirus/*growth & development MH - Gene Expression Regulation/*genetics MH - *Gene Transfer Techniques MH - Genes, Viral/*genetics MH - Genetic Therapy/methods MH - Genetic Vectors MH - Mice MH - Mice, Inbred C57BL MH - Nephrons/*metabolism/*virology PMC - PMC5893140 MID - NIHMS949538 OTO - NOTNLM OT - AAV OT - Promoters OT - Renal gene transfer COIS- Conflicts of interest The authors have declared that no conflict of interest exists. EDAT- 2018/02/07 06:00 MHDA- 2018/03/24 06:00 PMCR- 2018/04/10 CRDT- 2018/02/07 06:00 PHST- 2018/01/11 00:00 [received] PHST- 2018/01/27 00:00 [accepted] PHST- 2018/02/07 06:00 [pubmed] PHST- 2018/03/24 06:00 [medline] PHST- 2018/02/07 06:00 [entrez] PHST- 2018/04/10 00:00 [pmc-release] AID - S0006-291X(18)30192-X [pii] AID - 10.1016/j.bbrc.2018.01.169 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 2018 Feb 26;497(1):19-24. doi: 10.1016/j.bbrc.2018.01.169. Epub 2018 Jan 31.