PMID- 18032547 OWN - NLM STAT- MEDLINE DCOM- 20080304 LR - 20110428 IS - 1931-857X (Print) IS - 1522-1466 (Linking) VI - 294 IP - 1 DP - 2008 Jan TI - Tubulointerstitial heparan sulfate proteoglycan changes in human renal diseases correlate with leukocyte influx and proteinuria. PG - F253-63 AB - Heparan sulfate proteoglycans (HSPGs) are well known for their proposed role in glomerular filtration. In addition, HSPGs can bind the leukocyte adhesion molecule l-selectin and chemokines, suggesting a role in inflammation. We examined a panel of biopsies representing different human primary kidney diseases for l-selectin and monocyte chemoattractant protein-1 (MCP-1) binding. In various renal diseases, l-selectin and MCP-1 binding to interstitial perivascular matrix HSPGs is increased, which is significantly associated with leukocyte influx. In proteinuric diseases, including membranous glomerulopathy, minimal change disease, but also IgA nephropathy and lupus nephritis, increased binding of l-selectin and MCP-1 to tubular epithelial cell (TEC) HSPGs is observed, which colocalizes with increased basolateral syndecan-1 and anti-heparan sulfate 10E4 staining. Short-hairpin RNA-mediated silencing demonstrates that syndecan-1 on TECs indeed mediates l-Selectin binding. Increased TEC expression of IL-8 in biopsies of proteinuric patients suggests that the increase in luminal protein may activate TECs to increase expression of l-selectin and MCP-1 binding syndecan-1. Strikingly, urinary syndecan-1 from proteinuric patients is less capable of binding l-selectin compared with urinary syndecan-1 from healthy controls, although syndecan-1 concentrations are similar in both groups. Together, our data show pronounced tubulointerstitial HSPG alterations in primary kidney disease, which may affect the inflammatory response. FAU - Celie, J W A M AU - Celie JW AD - Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, The Netherlands. p.celie@vumc.nl FAU - Reijmers, R M AU - Reijmers RM FAU - Slot, E M AU - Slot EM FAU - Beelen, R H J AU - Beelen RH FAU - Spaargaren, M AU - Spaargaren M FAU - Ter Wee, P M AU - Ter Wee PM FAU - Florquin, S AU - Florquin S FAU - van den Born, J AU - van den Born J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071121 PL - United States TA - Am J Physiol Renal Physiol JT - American journal of physiology. Renal physiology JID - 100901990 RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Heparan Sulfate Proteoglycans) RN - 0 (SDC1 protein, human) RN - 0 (Syndecan-1) RN - 126880-86-2 (L-Selectin) SB - IM MH - Biopsy MH - Case-Control Studies MH - Cell Line MH - Cell Movement/*physiology MH - Chemokine CCL2/metabolism MH - Disease Progression MH - Epithelial Cells/metabolism/pathology MH - Heparan Sulfate Proteoglycans/*metabolism MH - Humans MH - Kidney Diseases/*metabolism/pathology MH - Kidney Tubules/*metabolism/pathology MH - L-Selectin/metabolism MH - Leukocytes/*pathology MH - Proteinuria/*metabolism/pathology MH - Syndecan-1/urine EDAT- 2007/11/23 09:00 MHDA- 2008/03/05 09:00 CRDT- 2007/11/23 09:00 PHST- 2007/11/23 09:00 [pubmed] PHST- 2008/03/05 09:00 [medline] PHST- 2007/11/23 09:00 [entrez] AID - 00429.2007 [pii] AID - 10.1152/ajprenal.00429.2007 [doi] PST - ppublish SO - Am J Physiol Renal Physiol. 2008 Jan;294(1):F253-63. doi: 10.1152/ajprenal.00429.2007. Epub 2007 Nov 21.