Tissue transglutaminase is essential for integrin-mediated survival of bone marrow-derived mesenchymal stem cells

Heesang Song, Woochul Chang, Soyeon Lim, Hye Sun Seo, Young Shim Chi, Sungha Park, Kyung Jong Yoo, Byung Soo Kim, Byoung Hyun Min, Hakbae Lee, Yangsoo Jang, Namsik Chung, Ki Chul Hwang

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Autologous mesenchymal stem cell (MSC) transplantation therapy for repair of myocardial injury has inherent limitations due to the poor viability of the stem cells after cell transplantation. Adhesion is a prerequisite for cell survival and also a key factor for the differentiation of MSCs. As a novel prosurvival modification strategy, we genetically engineered MSCs to overexpress tissue transglutaminase (tTG), with intention to enhance adhesion and ultimately cell survival after implantation. tTG-transfected MSCs (tTG-MSCs) showed a 2.7-fold and greater than a twofold increase of tTG expression and surface tTG activity, respectively, leading to a 20% increased adhesion of MSCs on fibronectin (Fn). Spreading and migration of tTG-MSCs were increased 4.75% and 2.52%, respectively. Adhesion of tTG-MSCs on cardiogel, a cardiac fibroblast-derived three-dimensional matrix, showed a 33.1% increase. Downregulation of tTG by transfection of small interfering RNA specific to the tTG resulted in markedly decreased adhesion and spread of MSCs on Fn or cardiogel. tTG-MSCs on Fn significantly increased phosphorylation of focal adhesion related kinases FAK, Src, and PI3K. tTG-MSCs showed significant retention in infarcted myocardium by forming a focal adhesion complex and developed into cardiac myocyte-like cells by the expression of cardiac-specific proteins. Transplantation of 1 × 106 MSCs transduced with tTG into the ischemic rat myocardium restored normalized systolic and diastolic cardiac function. tTG-MSCs further restored cardiac function of infarcted myocardium as compared with MSC transplantation alone. These findings suggested that tTG may play an important role in integrin-mediated adhesion of MSCs in implanted tissues.

Original languageEnglish
Pages (from-to)1431-1438
Number of pages8
JournalStem Cells
Volume25
Issue number6
DOIs
Publication statusPublished - 2007 Jun 1

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Mesenchymal Stromal Cells
Integrins
Bone Marrow
Fibronectins
Mesenchymal Stem Cell Transplantation
Myocardium
transglutaminase 2
Cell Survival
Focal Adhesion Protein-Tyrosine Kinases
Focal Adhesions
Cell Transplantation
Cell- and Tissue-Based Therapy
Phosphatidylinositol 3-Kinases
Cardiac Myocytes
Small Interfering RNA
Transfection
Stem Cells
Down-Regulation
Fibroblasts
Transplantation

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Developmental Biology
  • Cell Biology

Cite this

Song, Heesang ; Chang, Woochul ; Lim, Soyeon ; Seo, Hye Sun ; Chi, Young Shim ; Park, Sungha ; Yoo, Kyung Jong ; Kim, Byung Soo ; Min, Byoung Hyun ; Lee, Hakbae ; Jang, Yangsoo ; Chung, Namsik ; Hwang, Ki Chul. / Tissue transglutaminase is essential for integrin-mediated survival of bone marrow-derived mesenchymal stem cells. In: Stem Cells. 2007 ; Vol. 25, No. 6. pp. 1431-1438.
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abstract = "Autologous mesenchymal stem cell (MSC) transplantation therapy for repair of myocardial injury has inherent limitations due to the poor viability of the stem cells after cell transplantation. Adhesion is a prerequisite for cell survival and also a key factor for the differentiation of MSCs. As a novel prosurvival modification strategy, we genetically engineered MSCs to overexpress tissue transglutaminase (tTG), with intention to enhance adhesion and ultimately cell survival after implantation. tTG-transfected MSCs (tTG-MSCs) showed a 2.7-fold and greater than a twofold increase of tTG expression and surface tTG activity, respectively, leading to a 20{\%} increased adhesion of MSCs on fibronectin (Fn). Spreading and migration of tTG-MSCs were increased 4.75{\%} and 2.52{\%}, respectively. Adhesion of tTG-MSCs on cardiogel, a cardiac fibroblast-derived three-dimensional matrix, showed a 33.1{\%} increase. Downregulation of tTG by transfection of small interfering RNA specific to the tTG resulted in markedly decreased adhesion and spread of MSCs on Fn or cardiogel. tTG-MSCs on Fn significantly increased phosphorylation of focal adhesion related kinases FAK, Src, and PI3K. tTG-MSCs showed significant retention in infarcted myocardium by forming a focal adhesion complex and developed into cardiac myocyte-like cells by the expression of cardiac-specific proteins. Transplantation of 1 × 106 MSCs transduced with tTG into the ischemic rat myocardium restored normalized systolic and diastolic cardiac function. tTG-MSCs further restored cardiac function of infarcted myocardium as compared with MSC transplantation alone. These findings suggested that tTG may play an important role in integrin-mediated adhesion of MSCs in implanted tissues.",
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Tissue transglutaminase is essential for integrin-mediated survival of bone marrow-derived mesenchymal stem cells. / Song, Heesang; Chang, Woochul; Lim, Soyeon; Seo, Hye Sun; Chi, Young Shim; Park, Sungha; Yoo, Kyung Jong; Kim, Byung Soo; Min, Byoung Hyun; Lee, Hakbae; Jang, Yangsoo; Chung, Namsik; Hwang, Ki Chul.

In: Stem Cells, Vol. 25, No. 6, 01.06.2007, p. 1431-1438.

Research output: Contribution to journalArticle

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T1 - Tissue transglutaminase is essential for integrin-mediated survival of bone marrow-derived mesenchymal stem cells

AU - Song, Heesang

AU - Chang, Woochul

AU - Lim, Soyeon

AU - Seo, Hye Sun

AU - Chi, Young Shim

AU - Park, Sungha

AU - Yoo, Kyung Jong

AU - Kim, Byung Soo

AU - Min, Byoung Hyun

AU - Lee, Hakbae

AU - Jang, Yangsoo

AU - Chung, Namsik

AU - Hwang, Ki Chul

PY - 2007/6/1

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N2 - Autologous mesenchymal stem cell (MSC) transplantation therapy for repair of myocardial injury has inherent limitations due to the poor viability of the stem cells after cell transplantation. Adhesion is a prerequisite for cell survival and also a key factor for the differentiation of MSCs. As a novel prosurvival modification strategy, we genetically engineered MSCs to overexpress tissue transglutaminase (tTG), with intention to enhance adhesion and ultimately cell survival after implantation. tTG-transfected MSCs (tTG-MSCs) showed a 2.7-fold and greater than a twofold increase of tTG expression and surface tTG activity, respectively, leading to a 20% increased adhesion of MSCs on fibronectin (Fn). Spreading and migration of tTG-MSCs were increased 4.75% and 2.52%, respectively. Adhesion of tTG-MSCs on cardiogel, a cardiac fibroblast-derived three-dimensional matrix, showed a 33.1% increase. Downregulation of tTG by transfection of small interfering RNA specific to the tTG resulted in markedly decreased adhesion and spread of MSCs on Fn or cardiogel. tTG-MSCs on Fn significantly increased phosphorylation of focal adhesion related kinases FAK, Src, and PI3K. tTG-MSCs showed significant retention in infarcted myocardium by forming a focal adhesion complex and developed into cardiac myocyte-like cells by the expression of cardiac-specific proteins. Transplantation of 1 × 106 MSCs transduced with tTG into the ischemic rat myocardium restored normalized systolic and diastolic cardiac function. tTG-MSCs further restored cardiac function of infarcted myocardium as compared with MSC transplantation alone. These findings suggested that tTG may play an important role in integrin-mediated adhesion of MSCs in implanted tissues.

AB - Autologous mesenchymal stem cell (MSC) transplantation therapy for repair of myocardial injury has inherent limitations due to the poor viability of the stem cells after cell transplantation. Adhesion is a prerequisite for cell survival and also a key factor for the differentiation of MSCs. As a novel prosurvival modification strategy, we genetically engineered MSCs to overexpress tissue transglutaminase (tTG), with intention to enhance adhesion and ultimately cell survival after implantation. tTG-transfected MSCs (tTG-MSCs) showed a 2.7-fold and greater than a twofold increase of tTG expression and surface tTG activity, respectively, leading to a 20% increased adhesion of MSCs on fibronectin (Fn). Spreading and migration of tTG-MSCs were increased 4.75% and 2.52%, respectively. Adhesion of tTG-MSCs on cardiogel, a cardiac fibroblast-derived three-dimensional matrix, showed a 33.1% increase. Downregulation of tTG by transfection of small interfering RNA specific to the tTG resulted in markedly decreased adhesion and spread of MSCs on Fn or cardiogel. tTG-MSCs on Fn significantly increased phosphorylation of focal adhesion related kinases FAK, Src, and PI3K. tTG-MSCs showed significant retention in infarcted myocardium by forming a focal adhesion complex and developed into cardiac myocyte-like cells by the expression of cardiac-specific proteins. Transplantation of 1 × 106 MSCs transduced with tTG into the ischemic rat myocardium restored normalized systolic and diastolic cardiac function. tTG-MSCs further restored cardiac function of infarcted myocardium as compared with MSC transplantation alone. These findings suggested that tTG may play an important role in integrin-mediated adhesion of MSCs in implanted tissues.

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