PMID- 16220194 OWN - NLM STAT- MEDLINE DCOM- 20131205 LR - 20181201 IS - 0371-0874 (Print) IS - 0371-0874 (Linking) VI - 57 IP - 5 DP - 2005 Oct 25 TI - Migration of intravenously grafted mesenchymal stem cells to injured heart in rats. PG - 566-72 AB - The present study aimed to determine the role of tissue injury in migration of mesenchymal stem cells (MSCs) intravenously transplanted into heart and to establish experimental basis for improving stem cell therapy in its targeting and effectiveness. MSCs were isolated from bone marrow of male Sprague-Dawley rats and purified by density centrifuge and adhered to the culture plate in vitro. Female rats were divided randomly into four groups. Myocardial ischemia (MI) transplanted group received MSCs infusion through tail vein 3 h after MI and compared with sham-operated group or normal group with MSCs infusion, or control group received culture medium infusion. MI was created in female rats by ligating the left anterior descending coronary artery. The heart was harvested 1 week and 8 weeks after transplantation. The characteristics of migration of MSCs to heart were detected with expression of sry gene of Y chromosome by using fluorescence in situ hybridization (FISH). Ultrastructural changes of the ischemic myocardium of the recipient rats were observed by transmission electron microscope (TEM). One week or 8 weeks after transplantation, sry positive cells were observed in the cardiac tissue in both of MI transplanted group and sham-operated group, the number of sry positive cells being significantly higher in MI transplanted group (P<0.01). No significant difference was found in the number of sry positive cells between 1 week and 8 weeks after transplantation. No sry positive cells were observed in the hearts of control and normal group. In addition, the ultrastructure of some cells located in the peri-infarct area of MI rats with MSCs transplantation was similar to that of MSCs cultured in vitro. These results indicate that MSCs are capable of migrating towards ischemic myocardium in vivo and the fastigium of migration might appear around 1 week after MI. The tissue injury and its degree play an important role in the migration of MSCs. FAU - Jiang, Wen-Hui AU - Jiang WH AD - Cardiovascular Department, the First Hospital of Xi'an Jiaotong University, Ministry of Education, Xi'an 710061, China. FAU - Ma, Ai-Qun AU - Ma AQ FAU - Zhang, Yan-Min AU - Zhang YM FAU - Han, Ke AU - Han K FAU - Liu, Yu AU - Liu Y FAU - Zhang, Zeng-Tie AU - Zhang ZT FAU - Wang, Ting-Zhong AU - Wang TZ FAU - Huang, Xin AU - Huang X FAU - Zheng, Xiao-Pu AU - Zheng XP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Sheng Li Xue Bao JT - Sheng li xue bao : [Acta physiologica Sinica] JID - 20730130R SB - IM MH - Animals MH - *Cell Movement MH - Cell Tracking MH - Female MH - Male MH - *Mesenchymal Stem Cell Transplantation MH - Mesenchymal Stem Cells/*cytology MH - Myocardial Ischemia/*therapy MH - Myocardium/ultrastructure MH - Rats MH - Rats, Sprague-Dawley EDAT- 2005/10/13 09:00 MHDA- 2013/12/16 06:00 CRDT- 2005/10/13 09:00 PHST- 2005/10/13 09:00 [pubmed] PHST- 2013/12/16 06:00 [medline] PHST- 2005/10/13 09:00 [entrez] PST - ppublish SO - Sheng Li Xue Bao. 2005 Oct 25;57(5):566-72.