PMID- 18256904 OWN - NLM STAT- MEDLINE DCOM- 20080731 LR - 20181201 IS - 1423-0127 (Electronic) IS - 1021-7770 (Linking) VI - 15 IP - 3 DP - 2008 May TI - In situ delivery of bone marrow cells and mesenchymal stem cells improves cardiovascular function in hypertensive rats submitted to myocardial infarction. PG - 365-74 LID - 10.1007/s11373-008-9237-z [doi] AB - This work aimed to evaluate cardiac morphology/function and histological changes induced by bone marrow cells (BMCs) and cultured mesenchymal stem cells (MSCs) injected at the myocardium of spontaneously hypertensive rats (SHR) submitted to surgical coronary occlusion. Female syngeneic adult SHR, submitted (MI) or not (C) to coronary occlusion, were treated 24 h later with in situ injections of normal medium (NM), or with MSCs (MSC) or BMCs (BM) from male rats. The animals were evaluated after 1 and 30 days by echocardiography, histology of heart sections and PCR for the Y chromosome. Improved ejection fraction and reduced left ventricle infarcted area were observed in MSC rats as compared to the other experimental groups. Treated groups had significantly reduced lesion tissue score, increased capillary density and normal (not-atrophied) myocytes, as compared to NM and C groups. The survival rate was higher in C, NM and MSC groups as compared to MI and BM groups. In situ injection of both MSCs and BMCs resulted in improved cardiac morphology, in a more physiological model of myocardial infarction represented by surgical coronary occlusion of spontaneously hypertensive rats. Only treatment with MSCs, however, ameliorated left ventricle dysfunction, suggesting a positive role of these cells in heart remodeling in infarcted hypertensive subjects. FAU - de Macedo Braga, Luisa Maria Gomes AU - de Macedo Braga LM AD - Department of Genetics, Universidade Federal do Rio Grande do Sul, Av Bento Goncalves 9500, 91501-970, Porto Alegre, RS, Brazil. FAU - Lacchini, Silvia AU - Lacchini S FAU - Schaan, Beatriz D'Agord AU - Schaan BD FAU - Rodrigues, Bruno AU - Rodrigues B FAU - Rosa, Kaleizu AU - Rosa K FAU - De Angelis, Katia AU - De Angelis K FAU - Borges, Luciano Figueiredo AU - Borges LF FAU - Irigoyen, Maria Claudia AU - Irigoyen MC FAU - Nardi, Nance Beyer AU - Nardi NB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20080207 PL - England TA - J Biomed Sci JT - Journal of biomedical science JID - 9421567 RN - 0 (DNA Primers) SB - IM MH - Animals MH - Base Sequence MH - Bone Marrow Cells/*cytology MH - Cardiovascular System/physiopathology MH - *Cell Transplantation MH - DNA Primers MH - Disease Models, Animal MH - Echocardiography MH - Female MH - Hypertension/*surgery MH - Immunophenotyping MH - Mesenchymal Stem Cells/*cytology MH - Myocardial Infarction/diagnostic imaging/physiopathology/*surgery MH - Polymerase Chain Reaction MH - Rats MH - Rats, Inbred SHR EDAT- 2008/02/08 09:00 MHDA- 2008/08/01 09:00 CRDT- 2008/02/08 09:00 PHST- 2007/08/24 00:00 [received] PHST- 2008/01/14 00:00 [accepted] PHST- 2008/02/08 09:00 [pubmed] PHST- 2008/08/01 09:00 [medline] PHST- 2008/02/08 09:00 [entrez] AID - 10.1007/s11373-008-9237-z [doi] PST - ppublish SO - J Biomed Sci. 2008 May;15(3):365-74. doi: 10.1007/s11373-008-9237-z. Epub 2008 Feb 7.