Efficacy of subgroup mouse bone mesenchymal stem cells on mobilizing autologous cardiac stem cells and repairing ischemic myocardial tissue / 中华心血管病杂志
Chinese Journal of Cardiology
; (12): 210-214, 2013.
Article
ي Zh
| WPRIM
| ID: wpr-291999
المكتبة المسؤولة:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To search for the bone mesenchymal stem cell (MSC) subgroup which might be more effective on repairing myocardial damage.</p><p><b>METHODS</b>In this experiment, four MSC subgroups were defined based on the surface differentiation antigen detection of mouse bone mesenchymal stem cells (mBMSCs): SCA-1(+)/CD45(+)/CD31(+), SCA-1(+)/CD45(+)/CD31(-), SCA-1(+)/CD45(-)/CD31(-) and SCA-1(+)/CD45(-)/CD31(+). These subgroup cells and unselected mBMSCs were injected into infarcted mouse via tail vein. Echocardiographic heart function measurement and in vivo DiR-labeled stem cells imaging were performed at 48 h after injection. In situ C-kit (a flag antigen of cardiac stem cells) and cardiac-specific differentiation antigen immunohistochemistry detection was made in the infarcted myocardium.</p><p><b>RESULTS</b>The capacity of the SCA-1(+)/CD45(+)/CD31(+) cells on improving heart function was significantly higher than other cell groups (all P < 0.05). In vivo imaging showed that the mean fluorescence intensity of the SCA-1(+)/CD45(+)/CD31(+) cells was also higher than other cell groups (all P < 0.05). Number of cardiac stem cells in the infracted myocardium was significantly increased after the injection of all subgroup cells and unsorted mBMSCs cells for 48 h compared untreated infracted myocardium. The capacity of mobilizing cardiac stem cells is as follows: SCA-1(+)/CD45(+)/CD31(+) >SCA-1(+)/CD45(-)/CD31(+) >SCA-1(+)/CD45(-)/CD31(-) >SCA-1(+)/CD45(+)/CD31(-).</p><p><b>CONCLUSION</b>The SCA-1(+)/CD45(+)/CD31(+) subgroups of mBMSCs exhibites the highest capacity to improve cardiac function after myocardial infarction and to mobilize autologous cardiac stem cells compared with other mBMSCs subgroups and unsorted mBMSCs cells.</p>
النص الكامل:
1
الفهرس:
WPRIM
الموضوع الرئيسي:
General Surgery
/
Cells, Cultured
/
Mesenchymal Stem Cell Transplantation
/
Disease Models, Animal
/
Mice, Inbred C57BL
/
Myocardial Infarction
المحددات:
Animals
اللغة:
Zh
مجلة:
Chinese Journal of Cardiology
السنة:
2013
نوع:
Article