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There are several methods to differentiate MSCs into cardiac-like cells, such as gene induction. Moreover, using a three-dimensional (3D) culture, such as hydrogels increases efficiency of differentiation. In the current study, mouse adipose-derived MSCs were co-transduced with lentiviruses containing microRNA-1 ( miR-1) and Myocardin ( Myocd). Then, expression of cardiac markers, such as NK2 homeobox 5( Nkx2-5), GATA binding protein 4 ( Gata4), and troponin T type 2 ( Tnnt2) was investigated, at both gene and protein levels in two-dimensional (2D) culture and chitosan\/collagen hydrogel (CS\/CO) as a 3D culture. Additionally, after induction of myocardial infarction (MI) in rats, a patch containing the encapsulated induced cardiomyocytes (iCM\/P) was implanted to MI zone. Subsequently, 30 days after MI induction, echocardiography, immunohistochemistry staining, and histological examination were performed to evaluate cardiac function. The results of quantitative real -time polymerase chain reaction (qRT-PCR) and immunocytochemistry showed that co-induction of miR-1 and Myocd in MSCs followed by 3D culture of transduced cells increased expression of cardiac markers. Besides, results of in vivo study implicated that heart function was improved in MI model of rats in iCM\/P-treated group. The results suggested that miR-1\/Myocd induction combined with encapsulation of transduced cells in CS\/CO hydrogel increased efficiency of MSCs differentiation into iCMs and could improve heart function in MI model of rats after implantation.<\/jats:p>","DOI":"10.1177\/09636897211048786","type":"journal-article","created":{"date-parts":[[2021,10,5]],"date-time":"2021-10-05T17:27:42Z","timestamp":1633454862000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Improvement of Heart Function After Transplantation of Encapsulated Stem Cells Induced with miR-1\/Myocd in Myocardial Infarction Model of Rat"],"prefix":"10.1177","volume":"30","author":[{"given":"Samaneh","family":"Khazaei","sequence":"first","affiliation":[{"name":"Department of Cell and Molecular Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, 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