Allogeneic bone marrow mesenchymal stem cell transplantation for ventricular remodeling after myocardial infarction

doi:10.3969/j.issn.2095-4344.2016.50.006

Abstract

Abstract:

BACKGROUND: Myocardial infarction leads to ischemic changes in the myocardium, triggering the emergence of ventricular remodeling, which is an important cause of death. Myocardial infarction is a common disease in the middle-aged and elderly population, but autologous bone marrow mesenchymal stem cells from these patients exhibit a weak ability of proliferation and differentiation. Therefore, a positive attempt of allogeneic stem cell transplantation is required in order to obtain better therapeutic outcomes.
OBJECTIVE: To explore the effect of allogeneic bone marrow mesenchymal stem cells on ventricular remodeling after myocardial infarction.
METHODS: Bone marrow mesenchymal stem cells from 10 neonatal rats and 10 adult rats were isolated, cultured and identified. Another 40 rats were randomly assigned into four groups (n=10/group): model group, neonatal rat cell transplantation group, adult rat cell transplantation group, or sham group. Animal models of myocardial infarction were made in rats in the all groups except for the sham group in which the rats were given sham operation. Rats in the two cell transplantation groups were given the corresponding cell transplantation. Four weeks postoperatively, heart function of rats was detected in each group, and cardiac tissues were taken to detect changes in collagen formation and blood vessel density in the infarct area.
RESULTS AND CONCLUSION: Four weeks after surgery, rats in the model group showed significant changes in cardiac function indexes as compared with the other groups (P < 0.05), while compared with the model group, these cardiac function indexes improved in both two cell transplantation groups, but there was no significant difference between the two cell transplantation groups (P > 0.05). Meanwhile, compared with the model group, significantly decreased collagen formation and increased blood vessel density were found in both two cell transplantation groups (P < 0.05). Additionally, the vascular density of the infarct area was highest in the sham group (P < 0.05). Experimental results show that both neonatal and adult rat bone marrow mesenchymal stem cell transplantation can improve cardiac function of rats, reduce the formation of collagen in the infarct area and delay ventricular remodeling after myocardial infarction.

中国组织工程研究杂志出版内容重点：干细胞；骨髓干细胞；造血干细胞；脂肪干细胞；肿瘤干细胞；胚胎干细胞；脐带脐血干细胞；干细胞诱导；干细胞分化；组织工程

Key words: Mesenchymal Stem Cell Transplantation, Myocardial Infarction, Ventricular Remodeling, Tissue Engineering

CLC Number:

R394.2

Wang Juan, Jia He-lei, Ji Hong-liang, Ren Dong-dong, Lu Chang-qing. Allogeneic bone marrow mesenchymal stem cell transplantation for ventricular remodeling after myocardial infarction[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(50): 7487-7493.

Figures/Tables 3

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