The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells

Adult cardiomyocytes (CMs) have very limited capacity to regenerate. Therefore, there is a great interest in developing strategies to treat infarcted CMs that are able to regenerate cardiac tissue and promote revascularization of infarcted zones in the heart. Recently, stem cell transplantation has...

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Main Authors: Yan Wang, Feng-Juan Xing, Ling-Jie Meng, Qiu-Ye Ji, Mu-Rui Zhang, Jian-Wu Zhao
Format: Article
Language:English
Published: MDPI AG 2012-12-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/17/12/14975
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author Yan Wang
Feng-Juan Xing
Ling-Jie Meng
Qiu-Ye Ji
Mu-Rui Zhang
Jian-Wu Zhao
author_facet Yan Wang
Feng-Juan Xing
Ling-Jie Meng
Qiu-Ye Ji
Mu-Rui Zhang
Jian-Wu Zhao
author_sort Yan Wang
collection DOAJ
description Adult cardiomyocytes (CMs) have very limited capacity to regenerate. Therefore, there is a great interest in developing strategies to treat infarcted CMs that are able to regenerate cardiac tissue and promote revascularization of infarcted zones in the heart. Recently, stem cell transplantation has been proposed to replace infarcted CMs and to restore the function of the affected tissue. This area of research has become very active in recent years due to the huge clinical need to improve the efficacy of currently available therapies. Slingshot (SSH) is a family of protein phosphatases, which can specifically dephosphorylate and reactivate cofilin and inhibit the polymerization of actin filaments and actively involved in cytoskeleton rearrangement. In this study, we found that SSH1L promoted morphology changes of microfilaments during differentiation but was inhibited by the inhibitors of actin polymerization such as cytochalasin D. Overexpression of SSH1L could promote cardiac-specific protein and genes expression. 5-Aza can induce the differentiation of hMSCs into cardiomyocyte-like cells in vitro. We also observed that SSH1L efficiently promotes hMSCs differentiation into cardiomyocyte-like cells through regulation and rearrangement of cytoskeleton. Our work provides evidence that supports the positive role of SSH1L in the mechanism of stem cell differentiation into cardiomyocyte-like cells.
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spelling doaj.art-b00c71ad738b4398a119ce3a6551b61e2022-12-22T01:32:43ZengMDPI AGMolecules1420-30492012-12-011712149751499410.3390/molecules171214975The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like CellsYan WangFeng-Juan XingLing-Jie MengQiu-Ye JiMu-Rui ZhangJian-Wu ZhaoAdult cardiomyocytes (CMs) have very limited capacity to regenerate. Therefore, there is a great interest in developing strategies to treat infarcted CMs that are able to regenerate cardiac tissue and promote revascularization of infarcted zones in the heart. Recently, stem cell transplantation has been proposed to replace infarcted CMs and to restore the function of the affected tissue. This area of research has become very active in recent years due to the huge clinical need to improve the efficacy of currently available therapies. Slingshot (SSH) is a family of protein phosphatases, which can specifically dephosphorylate and reactivate cofilin and inhibit the polymerization of actin filaments and actively involved in cytoskeleton rearrangement. In this study, we found that SSH1L promoted morphology changes of microfilaments during differentiation but was inhibited by the inhibitors of actin polymerization such as cytochalasin D. Overexpression of SSH1L could promote cardiac-specific protein and genes expression. 5-Aza can induce the differentiation of hMSCs into cardiomyocyte-like cells in vitro. We also observed that SSH1L efficiently promotes hMSCs differentiation into cardiomyocyte-like cells through regulation and rearrangement of cytoskeleton. Our work provides evidence that supports the positive role of SSH1L in the mechanism of stem cell differentiation into cardiomyocyte-like cells.http://www.mdpi.com/1420-3049/17/12/14975mesenchymal stem cellscardiomyocyte-like cells5-azacytidineSlingshot-1L
spellingShingle Yan Wang
Feng-Juan Xing
Ling-Jie Meng
Qiu-Ye Ji
Mu-Rui Zhang
Jian-Wu Zhao
The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
Molecules
mesenchymal stem cells
cardiomyocyte-like cells
5-azacytidine
Slingshot-1L
title The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
title_full The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
title_fullStr The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
title_full_unstemmed The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
title_short The Role of Slingshot-1L (SSH1L) in the Differentiation of Human Bone Marrow Mesenchymal Stem Cells into Cardiomyocyte-Like Cells
title_sort role of slingshot 1l ssh1l in the differentiation of human bone marrow mesenchymal stem cells into cardiomyocyte like cells
topic mesenchymal stem cells
cardiomyocyte-like cells
5-azacytidine
Slingshot-1L
url http://www.mdpi.com/1420-3049/17/12/14975
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