{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T21:38:00Z","timestamp":1772314680623,"version":"3.50.1"},"reference-count":64,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,1,8]],"date-time":"2022-01-08T00:00:00Z","timestamp":1641600000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100012443","name":"Maryland Stem Cell Research Fund","doi-asserted-by":"publisher","award":["MSCRII-0253-00"],"award-info":[{"award-number":["MSCRII-0253-00"]}],"id":[{"id":"10.13039\/100012443","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["AR007592"],"award-info":[{"award-number":["AR007592"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Many clinical studies utilizing MSCs (mesenchymal stem cells, mesenchymal stromal cells, or multipotential stromal cells) are underway in multiple clinical settings; however, the ideal approach to prepare these cells in vitro and to deliver them to injury sites in vivo with maximal effectiveness remains a challenge. Here, pretreating MSCs with agents that block the apoptotic pathways were compared with untreated MSCs. The treatment effects were evaluated in the myocardial infarct setting following direct injection, and physiological parameters were examined at 4 weeks post-infarct in a rat permanent ligation model. The prosurvival treated MSCs were detected in the hearts in greater abundance at 1 week and 4 weeks than the untreated MSCs. The untreated MSCs improved ejection fraction in infarcted hearts from 61% to 77% and the prosurvival treated MSCs further improved ejection fraction to 83% of normal. The untreated MSCs improved fractional shortening in the infarcted heart from 52% to 68%, and the prosurvival treated MSCs further improved fractional shortening to 77% of normal. Further improvements in survival of the MSC dose seems possible. Thus, pretreating MSCs for improved in vivo survival has implications for MSC-based cardiac therapies and in other indications where improved cell survival may improve effectiveness.<\/jats:p>","DOI":"10.3390\/ijms23020694","type":"journal-article","created":{"date-parts":[[2022,1,9]],"date-time":"2022-01-09T20:29:26Z","timestamp":1641760166000},"page":"694","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["MSC Pretreatment for Improved Transplantation Viability Results in Improved Ventricular Function in Infarcted Hearts"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2744-1765","authenticated-orcid":false,"given":"Mark F.","family":"Pittenger","sequence":"first","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saman","family":"Eghtesad","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"},{"name":"Department of Biochemistry, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pablo G.","family":"Sanchez","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"},{"name":"Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15260, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoyan","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0807-7195","authenticated-orcid":false,"given":"Zhongjun","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ling","family":"Chen","sequence":"additional","affiliation":[{"name":"Departments of Physiology and Medicine, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bartley P.","family":"Griffith","sequence":"additional","affiliation":[{"name":"Department of Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1566","DOI":"10.1016\/j.cell.2015.05.026","article-title":"Dynamics of cell generation and turnover in the human heart","volume":"161","author":"Bergmann","year":"2015","journal-title":"Cell"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1151","DOI":"10.1161\/CIRCRESAHA.117.312586","article-title":"Mechanisms of cardiac repair and regeneration","volume":"122","author":"Broughton","year":"2018","journal-title":"Circ. 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