PMID- 20562095 OWN - NLM STAT- MEDLINE DCOM- 20110126 LR - 20121115 IS - 1755-3245 (Electronic) IS - 0008-6363 (Linking) VI - 88 IP - 2 DP - 2010 Nov 1 TI - A novel urokinase receptor-targeted inhibitor for plasmin and matrix metalloproteinases suppresses vein graft disease. PG - 367-75 LID - 10.1093/cvr/cvq203 [doi] AB - AIMS: Matrix metalloproteinases (MMP) and plasminogen activator (PA)/plasmin-mediated proteolysis, especially at the cell surface, play important roles in matrix degeneration and smooth muscle cell migration, which largely contributes to vein graft failure. In this study, a novel hybrid protein was designed to inhibit both protease systems simultaneously. MMP and plasmin activity were inhibited at the cell surface by this hybrid protein, consisting of the receptor-binding amino-terminal fragment (ATF) of urokinase-type PA, linked to both the tissue inhibitor of metalloproteinases (TIMP-1) and bovine pancreas trypsin inhibitor (BPTI), a potent protease inhibitor. The effect of overexpression of this protein on vein graft disease was studied. METHODS AND RESULTS: A non-viral expression vector encoding the hybrid protein TIMP-1.ATF.BPTI was constructed and validated. Next, cultured segments of human veins were transfected with this vector. Expressing TIMP-1.ATF.BPTI in vein segments resulted in a mean 36 +/- 14% reduction in neointima formation after 4 weeks. In vivo inhibition of vein graft disease by TIMP-1.ATF.BPTI is demonstrated in venous interpositions placed into carotid arteries of hypercholesterolaemic APOE*3Leiden mice. After 4 weeks, vein graft thickening was significantly inhibited in mice treated with the domains TIMP-1, ATF, or BPTI (36-49% reduction). In the TIMP-1.ATF.BPTI-treated mice, vein graft thickening was reduced by 67+/-4%, which was also significantly stronger when compared with the individual components. CONCLUSION: These data provide evidence that cell surface-bound inhibition of the PA and MMP system by the hybrid protein TIMP-1.ATF.BPTI, overexpressed in distant tissues after electroporation-mediated non-viral gene transfer, is a powerful approach to prevent vein graft disease. FAU - Eefting, Daniel AU - Eefting D AD - Department of Vascular Surgery, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands. FAU - Seghers, Leonard AU - Seghers L FAU - Grimbergen, Jos M AU - Grimbergen JM FAU - de Vries, Margreet R AU - de Vries MR FAU - de Boer, Hetty C AU - de Boer HC FAU - Lardenoye, Jan-Willem H P AU - Lardenoye JW FAU - Jukema, J Wouter AU - Jukema JW FAU - van Bockel, J Hajo AU - van Bockel JH FAU - Quax, Paul H A AU - Quax PH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100617 PL - England TA - Cardiovasc Res JT - Cardiovascular research JID - 0077427 RN - 0 (Apolipoprotein E3) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 0 (Receptors, Urokinase Plasminogen Activator) RN - 0 (Recombinant Fusion Proteins) RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - 9087-70-1 (Aprotinin) RN - EC 3.4.21.7 (Fibrinolysin) RN - EC 3.4.21.73 (Urokinase-Type Plasminogen Activator) RN - EC 3.4.24.- (Matrix Metalloproteinases) SB - IM MH - Animals MH - Apolipoprotein E3/genetics MH - Aprotinin/biosynthesis/genetics MH - Atherosclerosis/genetics/metabolism/pathology MH - Carotid Arteries/surgery MH - Cattle MH - Cell Line MH - *Cell Proliferation MH - Disease Models, Animal MH - Electroporation MH - Fibrinolysin/antagonists & inhibitors/*metabolism MH - *Genetic Therapy/methods MH - Graft Occlusion, Vascular/genetics/metabolism/pathology/*prevention & control MH - Humans MH - Hypercholesterolemia/genetics/metabolism/pathology MH - Hyperplasia MH - Male MH - Matrix Metalloproteinase Inhibitors MH - Matrix Metalloproteinases/*metabolism MH - Mice MH - Mice, Inbred C57BL MH - Mice, Mutant Strains MH - Receptors, Urokinase Plasminogen Activator/*metabolism MH - Recombinant Fusion Proteins/biosynthesis MH - Saphenous Vein/*metabolism/pathology/surgery MH - Time Factors MH - Tissue Culture Techniques MH - Tissue Inhibitor of Metalloproteinase-1/biosynthesis/genetics MH - Transfection MH - Urokinase-Type Plasminogen Activator/biosynthesis/genetics MH - Venae Cavae/*metabolism/pathology/transplantation EDAT- 2010/06/22 06:00 MHDA- 2011/01/28 06:00 CRDT- 2010/06/22 06:00 PHST- 2010/06/22 06:00 [entrez] PHST- 2010/06/22 06:00 [pubmed] PHST- 2011/01/28 06:00 [medline] AID - cvq203 [pii] AID - 10.1093/cvr/cvq203 [doi] PST - ppublish SO - Cardiovasc Res. 2010 Nov 1;88(2):367-75. doi: 10.1093/cvr/cvq203. Epub 2010 Jun 17.