MiR‐122 modification enhances the therapeutic efficacy of adipose tissue‐derived mesenchymal stem cells against liver fibrosis

Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR‐122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic...

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Veröffentlicht in:Journal of cellular and molecular medicine 2017-11, Vol.21 (11), p.2963-2973
Hauptverfasser: Lou, Guohua, Yang, Ying, Liu, Feifei, Ye, Bingjue, Chen, Zhi, Zheng, Min, Liu, Yanning
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container_issue 11
container_start_page 2963
container_title Journal of cellular and molecular medicine
container_volume 21
creator Lou, Guohua
Yang, Ying
Liu, Feifei
Ye, Bingjue
Chen, Zhi
Zheng, Min
Liu, Yanning
description Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR‐122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR‐122 modification can improve the therapeutic efficacy of adipose tissue‐derived MSCs in treating liver fibrosis. MiR‐122‐modified AMSCs (AMSC‐122) were constructed through lentivirus‐mediated transfer of pre‐miR‐122. MiR‐122‐modified AMSCs expressed high level of miR‐122, while they retained their phenotype and differentiation potential as naïve AMSCs. AMSC‐122 more effectively suppressed the proliferation of and collagen maturation in HSCs than scramble miRNA‐modified AMSCs. In addition, AMSC‐derived exosomes mediated the miR‐122 communication between AMSCs and HSCs, further affecting the expression levels of miR‐122 target genes, such as insulin‐like growth factor receptor 1 (IGF1R), Cyclin G(1) (CCNG1) and prolyl‐4‐hydroxylase α1 (P4HA1), which are involved in proliferation of and collagen maturation in HSCs. Moreover, miR‐122 modification enhanced the therapeutic efficacy of AMSCs in the treatment of carbon tetrachloride (CCl4)‐induced liver fibrosis by suppressing the activation of HSCs and alleviating collagen deposition. Results demonstrate that miR‐122 modification improves the therapeutic efficacy of AMSCs through exosome‐mediated miR‐122 communication; thus, miR‐122 modification is a new potential strategy for treatment of liver fibrosis.
doi_str_mv 10.1111/jcmm.13208
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Given that miR‐122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR‐122 modification can improve the therapeutic efficacy of adipose tissue‐derived MSCs in treating liver fibrosis. MiR‐122‐modified AMSCs (AMSC‐122) were constructed through lentivirus‐mediated transfer of pre‐miR‐122. MiR‐122‐modified AMSCs expressed high level of miR‐122, while they retained their phenotype and differentiation potential as naïve AMSCs. AMSC‐122 more effectively suppressed the proliferation of and collagen maturation in HSCs than scramble miRNA‐modified AMSCs. In addition, AMSC‐derived exosomes mediated the miR‐122 communication between AMSCs and HSCs, further affecting the expression levels of miR‐122 target genes, such as insulin‐like growth factor receptor 1 (IGF1R), Cyclin G(1) (CCNG1) and prolyl‐4‐hydroxylase α1 (P4HA1), which are involved in proliferation of and collagen maturation in HSCs. Moreover, miR‐122 modification enhanced the therapeutic efficacy of AMSCs in the treatment of carbon tetrachloride (CCl4)‐induced liver fibrosis by suppressing the activation of HSCs and alleviating collagen deposition. Results demonstrate that miR‐122 modification improves the therapeutic efficacy of AMSCs through exosome‐mediated miR‐122 communication; thus, miR‐122 modification is a new potential strategy for treatment of liver fibrosis.</description><identifier>ISSN: 1582-1838</identifier><identifier>EISSN: 1582-4934</identifier><identifier>DOI: 10.1111/jcmm.13208</identifier><identifier>PMID: 28544786</identifier><language>eng</language><publisher>England: John Wiley &amp; Sons, Inc</publisher><subject>Adipose tissue ; Adipose Tissue - cytology ; Adipose Tissue - metabolism ; adipose tissue‐derived mesenchymal stem cells ; Animals ; Bile ; Body fat ; Carbon Tetrachloride ; Cell Communication ; Cell Cycle - genetics ; Cell Differentiation ; Cell Engineering ; Cell Proliferation ; Collagen ; Cyclin G ; Cyclin G1 - genetics ; Cyclin G1 - metabolism ; exosome ; Exosomes ; Exosomes - metabolism ; Fibrosis ; Gene Expression Regulation ; hepatic stellate cells ; Hepatic Stellate Cells - metabolism ; Hepatic Stellate Cells - pathology ; Hepatocytes ; Hydroxylase ; Insulin ; Insulin-like growth factor I receptors ; Liver ; Liver Cirrhosis - chemically induced ; Liver Cirrhosis - genetics ; Liver Cirrhosis - pathology ; Liver Cirrhosis - therapy ; liver fibrosis ; Mesenchymal Stem Cell Transplantation ; Mesenchymal stem cells ; Mesenchymal Stromal Cells - cytology ; Mesenchymal Stromal Cells - metabolism ; Mesenchyme ; Mice ; Mice, Inbred C57BL ; MicroRNAs - genetics ; MicroRNAs - metabolism ; miRNA ; miR‐122 ; Original ; Primary Cell Culture ; Prolyl Hydroxylases - genetics ; Prolyl Hydroxylases - metabolism ; Receptor, IGF Type 1 - genetics ; Receptor, IGF Type 1 - metabolism ; Signal Transduction ; Stellate cells ; Stem cells ; Transplantation</subject><ispartof>Journal of cellular and molecular medicine, 2017-11, Vol.21 (11), p.2963-2973</ispartof><rights>2017 The Authors. 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In addition, AMSC‐derived exosomes mediated the miR‐122 communication between AMSCs and HSCs, further affecting the expression levels of miR‐122 target genes, such as insulin‐like growth factor receptor 1 (IGF1R), Cyclin G(1) (CCNG1) and prolyl‐4‐hydroxylase α1 (P4HA1), which are involved in proliferation of and collagen maturation in HSCs. Moreover, miR‐122 modification enhanced the therapeutic efficacy of AMSCs in the treatment of carbon tetrachloride (CCl4)‐induced liver fibrosis by suppressing the activation of HSCs and alleviating collagen deposition. 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subjects Adipose tissue
Adipose Tissue - cytology
Adipose Tissue - metabolism
adipose tissue‐derived mesenchymal stem cells
Animals
Bile
Body fat
Carbon Tetrachloride
Cell Communication
Cell Cycle - genetics
Cell Differentiation
Cell Engineering
Cell Proliferation
Collagen
Cyclin G
Cyclin G1 - genetics
Cyclin G1 - metabolism
exosome
Exosomes
Exosomes - metabolism
Fibrosis
Gene Expression Regulation
hepatic stellate cells
Hepatic Stellate Cells - metabolism
Hepatic Stellate Cells - pathology
Hepatocytes
Hydroxylase
Insulin
Insulin-like growth factor I receptors
Liver
Liver Cirrhosis - chemically induced
Liver Cirrhosis - genetics
Liver Cirrhosis - pathology
Liver Cirrhosis - therapy
liver fibrosis
Mesenchymal Stem Cell Transplantation
Mesenchymal stem cells
Mesenchymal Stromal Cells - cytology
Mesenchymal Stromal Cells - metabolism
Mesenchyme
Mice
Mice, Inbred C57BL
MicroRNAs - genetics
MicroRNAs - metabolism
miRNA
miR‐122
Original
Primary Cell Culture
Prolyl Hydroxylases - genetics
Prolyl Hydroxylases - metabolism
Receptor, IGF Type 1 - genetics
Receptor, IGF Type 1 - metabolism
Signal Transduction
Stellate cells
Stem cells
Transplantation
title MiR‐122 modification enhances the therapeutic efficacy of adipose tissue‐derived mesenchymal stem cells against liver fibrosis
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