PMID- 19808371 OWN - NLM STAT- MEDLINE DCOM- 20091027 LR - 20220316 IS - 1941-3297 (Electronic) IS - 1941-3289 (Linking) VI - 2 IP - 5 DP - 2009 Sep TI - A pilot trial to assess potential effects of selective intracoronary bone marrow-derived progenitor cell infusion in patients with nonischemic dilated cardiomyopathy: final 1-year results of the transplantation of progenitor cells and functional regeneration enhancement pilot trial in patients with nonischemic dilated cardiomyopathy. PG - 417-23 LID - 10.1161/CIRCHEARTFAILURE.109.855023 [doi] AB - BACKGROUND: Intracoronary administration of bone marrow-derived progenitor cells (BMC) was shown to improve coronary microvascular function in ischemic heart disease. Because coronary microvascular dysfunction is implicated in the pathogenesis and prognosis of nonischemic dilated cardiomyopathy (DCM), we investigated the effects of intracoronary BMC administration in patients with DCM. METHODS AND RESULTS: Intracoronary infusion of BMC was performed in 33 patients with DCM by using an over-the-wire balloon catheter. Left ventricular contractility at baseline and after 3 months was assessed by analysis of left ventricular angiograms. Coronary hemodynamics were determined by intracoronary Doppler wire measurements. After 3 months, regional wall motion of the target area (contractility from -1.08 + or - 0.39 to -0.97 + or - 0.47 SD/chord, P=0.029) and global left ventricular ejection fraction (from 30.2 + or - 10.9 to 33.4 + or - 11.5%, P<0.001) were improved. Increase of regional contractile function was directly related to the functionality of the infused cells as measured by their colony-forming capacity. Minimal vascular resistance index was significantly reduced in the BMC-treated vessel after 3 months (from 1.53 + or - 0.63 to 1.32 + or -0.61 mm Hg x s/cm; P=0.002, n=24), whereas no changes were observed in the reference vessel (from 1.60 + or - 0.45 to 1.49 + or - 0.45 mm Hg x s/cm; P=0.133, n=13). Twelve months after BMC infusion, N-terminal prohormone brain natriuretic peptide (NT-proBNP) serum levels were decreased, suggesting a beneficial effect on left ventricular remodeling processes (from 1610 + or - 993 to 1473 + or - 1147 pg/mL; P=0.038 for logNT-proBNP, n=26). CONCLUSIONS: Intracoronary administration of BMC seems to be associated with improvements in cardiac contractile and microvascular function in patients with DCM. Thus, randomized blinded studies are warranted to evaluate potential clinical benefits of intracoronary BMC administration in patients with DCM. FAU - Fischer-Rasokat, Ulrich AU - Fischer-Rasokat U AD - Cardiology and Molecular Cardiology, Department of Medicine III, Goethe University of Frankfurt, Frankfurt/Main, Germany. FAU - Assmus, Birgit AU - Assmus B FAU - Seeger, Florian H AU - Seeger FH FAU - Honold, Jorg AU - Honold J FAU - Leistner, David AU - Leistner D FAU - Fichtlscherer, Stephan AU - Fichtlscherer S FAU - Schachinger, Volker AU - Schachinger V FAU - Tonn, Torsten AU - Tonn T FAU - Martin, Hans AU - Martin H FAU - Dimmeler, Stefanie AU - Dimmeler S FAU - Zeiher, Andreas M AU - Zeiher AM LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090729 PL - United States TA - Circ Heart Fail JT - Circulation. Heart failure JID - 101479941 RN - 0 (Biomarkers) RN - 0 (Peptide Fragments) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Aged MH - Biomarkers/blood MH - *Bone Marrow Transplantation/methods MH - Cardiac Catheterization MH - Cardiomyopathy, Dilated/diagnostic imaging/physiopathology/*surgery MH - Catheterization MH - Cell Proliferation MH - *Coronary Circulation MH - Echocardiography, Doppler MH - Female MH - Humans MH - Male MH - Microcirculation MH - Middle Aged MH - Myocardial Contraction MH - Myocardium/metabolism/*pathology MH - Natriuretic Peptide, Brain/blood MH - Peptide Fragments/blood MH - Pilot Projects MH - Prospective Studies MH - Recovery of Function MH - *Regeneration MH - *Stem Cell Transplantation/methods MH - Stroke Volume MH - Time Factors MH - Treatment Outcome MH - Vascular Resistance MH - *Ventricular Function, Left MH - Ventricular Remodeling EDAT- 2009/10/08 06:00 MHDA- 2009/10/29 06:00 CRDT- 2009/10/08 06:00 PHST- 2009/10/08 06:00 [entrez] PHST- 2009/10/08 06:00 [pubmed] PHST- 2009/10/29 06:00 [medline] AID - CIRCHEARTFAILURE.109.855023 [pii] AID - 10.1161/CIRCHEARTFAILURE.109.855023 [doi] PST - ppublish SO - Circ Heart Fail. 2009 Sep;2(5):417-23. doi: 10.1161/CIRCHEARTFAILURE.109.855023. Epub 2009 Jul 29.