Effects of adipose tissue-derived stem cell therapy after myocardial infarction: impact of the route of administration.
J Card Fail
; 16(4): 357-66, 2010 Apr.
Article
in En
| MEDLINE
| ID: mdl-20350704
ABSTRACT
BACKGROUND:
Cell-based therapies offer a promising approach to reducing the short-term mortality rate associated with heart failure after a myocardial infarction. The aim of the study was to analyze histological and functional effects of adipose tissue-derived stem cells (ADSCs) after myocardial infarction and compare 2 types of administration pathways. METHODS ANDRESULTS:
ADSCs from 28 pigs were labeled by transfection. Animals that survived myocardial infarction (n = 19) received intracoronary culture media (n = 4); intracoronary ADSCs (n = 5); transendocardial culture media (n = 4); or transendocardial ADSCs (n = 6). At 3 weeks' follow-up, intracoronary and transendocardial administration of ADSCs resulted in similar rates of engrafted cells (0.85 [0.19-1.97] versus 2 [1-2] labeled cells/cm(2), respectively; P = NS) and some of those cells expressed smooth muscle cell markers. The intracoronary administration of ADSCs was more effective in increasing the number of small vessels than transendocardial administration (223 +/- 40 versus 168 +/- 35 vessels/mm(2); P < .05). Ejection fraction was not modified by stem cell therapy.CONCLUSIONS:
This is the first study to compare intracoronary and transendocardial administration of autologous ADSCs in a porcine model of myocardial infarction. Both pathways of ADSCs delivery are feasible, producing a similar number of engrafted and differentiated cells, although intracoronary administration was more effective in increasing neovascularization.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Adipose Tissue
/
Stem Cell Transplantation
/
Endocardium
/
Myocardial Infarction
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Animals
Language:
En
Journal:
J Card Fail
Journal subject:
CARDIOLOGIA
Year:
2010
Document type:
Article
Affiliation country:
Spain