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Regeneration and stem cells = self renewal Definition 1) Self-renewing capability Clonal expansion 2) Differentiation into various types of cells, multipotent Why stem cell research in CV medicine? Rising Mortality from cardiovascular diseases 100 30 Ischemic heart disease mortality per 100,000 Poor prognosis of cardiovascular diseases 25 Survival curve of advanced gastric cancer 80 20 60 TNF-α 15 10 40 5 Survival curve of heart failure 20 0 1986 1988 1990 1992 1994 1996 1998 2000 2002 Mortality in Korea due to ischemic heart disease (Korea National Statistical Office, 2003) 0 2 4 6 8 Why stem cell research in CV medicine? Effects on Mechanism of Action Loss of myocardium Inadequate blood supply May prevent further loss + Medical Treatment Inhibit neurohumoral response Cardiac resynchronization therapy Resynchronize contraction - +/- Surgical ventricular restoration Restoring geometry - +/- Ventricular assist device Unloading cardiac load - +/- Artificial heart New mechanical contractile apparatus +++ Not indicated Heart Transplantation New heart +++ +++ Stem cell therapy Regeneration of myocardium and blood vessels ++ ++ Earlier Clinical Trials of Cell Therapy for IHD in recent 10 yrs N Method of delivery (Underling disease) LVEF Follow-up Period Donor cell Hamano et al 5 Myocardial injection during CABG (OMI) NA Up to 1 y Bone marrow cells None Strauer et al 10 Intracoronary infusion after PCI (AMI) 57% 3 mo Bone marrow cells None Assmus et al 20 Intracoronary infusion after PCI (AMI) 51% 4 mo Bone marrow cells/ Progenitor cells None Menasché et al 10 Myocardial injection during CABG (OMI) 24% 10.9 mo Skeletal myoblasts Death, VT Stamm et al 12 Myocardial injection during CABG (OMI) 36% 3-9 mo Bone marrow cells SVT Pagani et al 5 Myocardial injection during LVAD (OM) NA 68-191 d Skeletal myoblasts Arrhythmia, LVAD death Tse et al 8 Myocardial injection during catheterization (angina) 58% 3 mo Bone marrow cells None Perin et al 14 Myocardial injection during catheterization (OMI) 30% 4 mo Bone marrow cells Death Galinaes et al 21 Myocardial injection during CABG (OMI) NA 10 mo Bone marrow cells None BOOSTl 65 Intracoronary infusion after PCI (AMI) 50% 6 mo Bone marrow cells None Smits et al 5 Myocardial injection during catheterization 36% 6 mo Skeletal myoblasts VT MAGIC 1,2 42 Intracoronary infusion after PCI (AMI+OMI) 49% 1y Aviles et al 5 Intracoronary infusion after PCI (AMI) 53% 6 mo Bone marrow cells Heart attack Chen et al 34 Intracoronary infusion after PCI (AMI) 49% 6 mo Bone marrow cells None Peripheral blood cells Complications Restenosis Later Clinical Trials of Cell Therapy for IHD in recent 10 yrs Name N Underling disease Method of delivery Change of LVEF Follow-up Period Donor cell Complication REPAIR 217 AMI IC 2.5% 4M BM none MAGIC-3-DES 150 AMI/OMI IC 5.9% (AMI) 6M PBSC none TOPCARE-DCM 20 DCM ICLAD 2.8% 3M BM none TOPCARE-CHD 109 OMI IC 4.8% vs. 2.8% 4M BM,CPC none TOPCARECrossover 48 ICMP IC 2% vs. 0% 2M BM/CPC none ASTAMI 100 Ant. AMI IC None 6M BM none Hendrikx et al 20 OMI CABG None 4M BM none Herbots et al 67 AMI IC None 4M BM none Hambrecht et al 26 OMI CTO IC 8% 3M CPC none IACT/Strauer 18 OMI IC 7% 3M BM restenosis (6%) Erbs et al 26 OMI CTO IC 7.1% 3M CPC none Zbinden et a 14 Angina none - 2wk GMCSF only 2 ACS Hill et al 16 Angina none - 1M GCSF only 2MI Scheme of Clinical Trials for CardioVascular Regeneration Therapy Source of Stem Cells Delivery Strategy Skeletal Myoblast (Genetic Engineering) Bone Marrow Stem Cells Peripheral Blood Stem Cells Adipose Tissue Stem Cells In-situ Cardiac Stem Cells Surgical Ecto-Myo injection X Trans-catheter Endo-Myo injection Intracoronary Infusion Skeletal myoblast: MyoCellTM program in SNUH intramyocardial cell injection patient muscle biopsy ICD cell selection & expansion final 50 million cells/cc x x x x x x x x x x injection catheter 25 million cells/site x 10 sites Bone marrow-derived stem cell NIH Stem Cell Book 2006, Cho et al 2006 Regenerative Medicine Adipose-derived stem cell: ASC Gimble et al, Circ Res 2004 Gimble et al, Circulation 2007 Cardiac stem/progenitor cell nucleus α-sarcomeric actin c-kit Nkx2.5 Beltrami A et al Cell 2003, Barile L et al NCPC 2007 Umbilical cord blood-derived stem cell UCB Harvest Separation of MNCs Seeding & Incubation Monolayer of cultured cells - Prolonged proliferation - Multi-potential differentiation - Immunological privilege (allogeneic source) HLA II 음성 T cell co-stimulatory molecules 음성 (B7-1, B7-2, CD40, CD40L 음성) MLR inhibition fail to induce allogenic T cell response in vivo MAGIC cell program: Myocardial Regeneration and Angiogenesis in Patient with Myocardial Infarction using G-CSF mobilization and Intra-Coronary Stem Cell Infusion MobPBSCs G-CSF injection for 3days Intracoronary infusion of stem cells Apheresis Kang HJ, Kim HS, et al. Lancet 2004 Kang HJ,,,, Kim HS. Circulation 2006 Kang HJ,,,, Kim HS. Heart 2007 Chang SA,,,, Kang HJ, Kim HS. Heart 2008 Park KW,,,, Kim HS. JMCC 2008 Chang SA, Kang HJ,,,, Kim HS. Heart 2009 Kang HJ,,, Kim HS. Cell Transplantation 2012 Kang HJ, Kim HS, et al. Can Med Asso J 2004 Kang HJ,,,, Kim HS. Am Heart J 2007 Kang JH & Kim HS. Exp Rev Card Thr 2008 Kang HJ & Kim HS. EHJ Supp 2008 Kim YJ,,,, Kim HS. Heart 2009 Kang HJ ,,,, Kim HS. Trials 2011 Kang HJ,,, Kim HS. Euro Heart J 2012 MAGIC Cell program in SNUH [Seoul National University Hospital, Korea] 2003 2004 MAGIC Cell-1 MAGIC Cell-2 2006 2005 2007 2008 2009 2010 : G-CSF vs. Cell infusion vs. control in elective PCI : G-CSF vs. control in AMI who underwent primary PCI MAGIC Cell-3-DES : Cell infusion vs. control in AMI and OMI with DES G-CSF and endothelial function Effect of Cell infusion on LV dyssynchrony G-CSF and Restenosis, coronary remodeling 1st generation stem cell therapy 1.5th generation stem cell therapy 2nd generation stem cell therapy MAGIC Cell-4-ICMP : Cell infusion in ischemic CMP without PCI MAGIC Cell-5 : cell infusion with combicytokine vs. G-CSF MAGIC Cell-6 : waiting for agent SNUH MAGIC Cell Program MAGIC Cell-1,2 trial from Dec 2002 Additional cell infusion is better than G-CSF alone. NIH may be a concern of G-CSF. MAGIC Cell-3-DES & 4-ICMP trial from Feb 2004 DES solved restenosis problem of G-CSF. Additional cell infusion is better than control in AMI rather than OMI MAGIC Cell-5-CombiCyto trial from April 2007 To enhance homing rate and therapeutic efficacy