Comparison of different adult stem cell types for treatment of myocardial ischemia

TY - JOUR

T1 - Comparison of different adult stem cell types for treatment of myocardial ischemia

AU - van der Bogt, Koen E A

AU - Sheikh, Ahmad Y

AU - Schrepfer, Sonja

AU - Hoyt, Grant

AU - Cao, Feng

AU - Ransohoff, Katherine J

AU - Swijnenburg, Rutger-Jan

AU - Pearl, Jeremy

AU - Lee, Andrew

AU - Fischbein, Michael

AU - Contag, Christopher H

AU - Robbins, Robert C

AU - Wu, Joseph C

PY - 2008/9/30

Y1 - 2008/9/30

N2 - BACKGROUND: A comparative analysis of the efficacy of different cell candidates for the treatment of heart disease remains to be described. This study is designed to evaluate the therapeutic efficacy of 4 cell types in a murine model of myocardial infarction.METHODS AND RESULTS: Bone marrow mononuclear cells (MN), mesenchymal stem cells (MSC), skeletal myoblasts (SkMb), and fibroblasts (Fibro) expressing firefly luciferase (Fluc) and green fluorescence protein (GFP) were characterized by flow cytometry, bioluminescence imaging (BLI), and luminometry. Female FVB mice (n=70) underwent LAD ligation and intramyocardially received one cell type (5x10(5)) or PBS. Cell survival was measured by BLI and by TaqMan PCR. Cardiac function was assessed by echocardiography and invasive hemodynamic measurements. Fluc expression correlated with cell number in all groups (r(2)>0.93). In vivo BLI revealed acute donor cell death of MSC, SkMb, and Fibro within 3 weeks after transplantation. By contrast, cardiac signals were still present after 6 weeks in the MN group, as confirmed by TaqMan PCR (P<0.01). Echocardiography showed significant preservation of fractional shortening in the MN group compared to controls (P<0.05). Measurements of left ventricular end-systolic/diastolic volumes revealed that the least amount of ventricular dilatation occurred in the MN group (P<0.05). Histology confirmed the presence of MN, although there was no evidence of transdifferentiation by donor MN into cardiomyocytes.CONCLUSIONS: This is the first study to show that compared to MSC, SkMB, and Fibro, MN exhibit a more favorable survival pattern, which translates into a more robust preservation of cardiac function.

AB - BACKGROUND: A comparative analysis of the efficacy of different cell candidates for the treatment of heart disease remains to be described. This study is designed to evaluate the therapeutic efficacy of 4 cell types in a murine model of myocardial infarction.METHODS AND RESULTS: Bone marrow mononuclear cells (MN), mesenchymal stem cells (MSC), skeletal myoblasts (SkMb), and fibroblasts (Fibro) expressing firefly luciferase (Fluc) and green fluorescence protein (GFP) were characterized by flow cytometry, bioluminescence imaging (BLI), and luminometry. Female FVB mice (n=70) underwent LAD ligation and intramyocardially received one cell type (5x10(5)) or PBS. Cell survival was measured by BLI and by TaqMan PCR. Cardiac function was assessed by echocardiography and invasive hemodynamic measurements. Fluc expression correlated with cell number in all groups (r(2)>0.93). In vivo BLI revealed acute donor cell death of MSC, SkMb, and Fibro within 3 weeks after transplantation. By contrast, cardiac signals were still present after 6 weeks in the MN group, as confirmed by TaqMan PCR (P<0.01). Echocardiography showed significant preservation of fractional shortening in the MN group compared to controls (P<0.05). Measurements of left ventricular end-systolic/diastolic volumes revealed that the least amount of ventricular dilatation occurred in the MN group (P<0.05). Histology confirmed the presence of MN, although there was no evidence of transdifferentiation by donor MN into cardiomyocytes.CONCLUSIONS: This is the first study to show that compared to MSC, SkMB, and Fibro, MN exhibit a more favorable survival pattern, which translates into a more robust preservation of cardiac function.

KW - Animals

KW - Bone Marrow Cells

KW - Bone Marrow Transplantation

KW - Cell Survival

KW - Echocardiography

KW - Female

KW - Fibroblasts/transplantation

KW - Green Fluorescent Proteins/genetics

KW - Luciferases, Firefly/genetics

KW - Male

KW - Mesenchymal Stem Cell Transplantation

KW - Mice

KW - Mice, Inbred Strains

KW - Mice, Transgenic

KW - Myoblasts, Skeletal/transplantation

KW - Myocardial Infarction/diagnostic imaging

KW - Myocardial Ischemia/diagnostic imaging

KW - Reproducibility of Results

KW - Stem Cell Transplantation

KW - Ventricular Function, Left

U2 - 10.1161/CIRCULATIONAHA.107.759480

DO - 10.1161/CIRCULATIONAHA.107.759480

M3 - SCORING: Journal article

C2 - 18824743

VL - 118

SP - 121

EP - 129

JO - CIRCULATION

JF - CIRCULATION

SN - 0009-7322

IS - 14 Suppl

ER -