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ヤマト マサユキ
Yamato Masayuki
大和 雅之 所属 医学研究科 医学研究科 (医学部医学科をご参照ください) 職種 教授 |
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| 論文種別 | 原著 |
| 言語種別 | 英語 |
| 査読の有無 | 査読あり |
| 表題 | Time Course of Cell Sheet Adhesion to Porcine Heart Tissue after Transplantation |
| 掲載誌名 | 正式名：PloS one 略 称：PLoS One ISSNコード：(1932-6203)1932-6203(Linking) |
| 掲載区分 | 国外 |
| 巻・号・頁 | 10(10),pp.e0137494 |
| 著者・共著者 | Chang Dehua†, Shimizu Tatsuya, Haraguchi Yuji, Gao Shuai, Sakaguchi Katsuhisa, Umezu Mitsuo, Yamato Masayuki, Liu Zhongmin, Okano Teruo* |
| 発行年月 | 2015/10 |
| 概要 | Multilayered cell sheets have been produced from bone marrow-derived mesenchymal stem cells (MSCs) for investigating their adhesion properties onto native porcine heart tissue. Once MSCs reached confluence after a 7-day culture on a temperature-responsive culture dish, a MSCs monolayer spontaneously detached itself from the dish, when the culture temperature was reduced from 37 to 20°C. The basal extracellular matrix (ECM) proteins of the single cell sheet are preserved, because this technique requires no proteolytic enzymes for harvesting cell sheet, which become a basic building block for assembling a multilayer cell sheet. The thickness of multilayered cell sheets made from three MSC sheets was found to be approximately 60 μm. For investigating the adhesion properties of the basal and apical sides, the multilayered cell sheets were transplanted onto the surface of the heart's left ventricle. Multilayered cell sheets were histological investigated at 15, 30, 45 and 60 minutes after transplantation by hematoxylin eosin (HE) and azan dyes to determine required time for the adhesion of the multilayered sheets following cell-sheet transplantation. The results showed that only the basal side of multilayered cell sheets significantly enhanced the sheets adhesion onto the surface of heart 30 minutes after transplantation. This study concluded that (1) cell sheets had to be transplanted with its basal side onto the surface of heart tissue and (2) at least 30 minutes were necessary for obtaining the histological adhesion of the sheets to the heart tissue. This study provided clinical evidence and parameters for the successful application of MSC sheets to the myocardium and allowed cell sheet technology to be adapted clinical cell-therapy for myocardial diseases. |
| DOI | 10.1371/journal.pone.0137494 |
| PMID | 26444683 |