MiR-221 and miR-26b Regulate Chemotactic Migration of MSCs Toward HGF Through Activation of Akt and FAK

ABSTRACT The chemotactic migration of mesenchymal stem cells (MSCs) is fundamental for their use in cell‐based therapies, but little is known about the molecular mechanisms that regulate their directed migration. MicroRNAs (miRNAs) participate in the regulation of a large variety of cellular process...

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Veröffentlicht in:Journal of cellular biochemistry 2016-06, Vol.117 (6), p.1370-1383
Hauptverfasser: Zhu, Aisi, Kang, Naixin, He, Lihong, Li, Xianyang, Xu, Xiaojing, Zhang, Huanxiang
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container_issue 6
container_start_page 1370
container_title Journal of cellular biochemistry
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creator Zhu, Aisi
Kang, Naixin
He, Lihong
Li, Xianyang
Xu, Xiaojing
Zhang, Huanxiang
description ABSTRACT The chemotactic migration of mesenchymal stem cells (MSCs) is fundamental for their use in cell‐based therapies, but little is known about the molecular mechanisms that regulate their directed migration. MicroRNAs (miRNAs) participate in the regulation of a large variety of cellular processes. However, their roles in regulating the responses of MSCs to hepatocyte growth factor (HGF) remain elusive. Here, we found that microRNA‐221 (miR‐221) and microRNA‐26b (miR‐26b) were upregulated in MSCs subjected to HGF. Overexpression of miR‐221 or miR‐26b enhanced MSC migration through activation of PI3K/Akt signaling. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) was identified as a potential target of miR‐221 and miR‐26b; overexpression of miR‐221 or miR‐26b decreased PTEN expression at both mRNA and protein levels. Overexpression of miR‐221 or miR‐26b in MSCs increased the phosphorylation of focal adhesion kinase (FAK), a downstream effector of PTEN, which regulates cell migration through assembly and distribution of focal adhesions (FAs), and more dot‐like FAs were localized at the periphery of these cells. Altering miR‐221 or miR‐26b expression influenced the directed migration of MSCs toward HGF. Inhibition of miR‐221 or miR‐26b suppressed the phosphorylation of Akt and FAK and upregulated PTEN expression, which was partly restored by HGF treatment. Collectively, these results demonstrate that miR‐221 and miR‐26b participate in regulating the chemotactic response of MSCs toward HGF. J. Cell. Biochem. 117: 1370–1383, 2016. © 2015 Wiley Periodicals, Inc.
doi_str_mv 10.1002/jcb.25428
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MicroRNAs (miRNAs) participate in the regulation of a large variety of cellular processes. However, their roles in regulating the responses of MSCs to hepatocyte growth factor (HGF) remain elusive. Here, we found that microRNA‐221 (miR‐221) and microRNA‐26b (miR‐26b) were upregulated in MSCs subjected to HGF. Overexpression of miR‐221 or miR‐26b enhanced MSC migration through activation of PI3K/Akt signaling. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) was identified as a potential target of miR‐221 and miR‐26b; overexpression of miR‐221 or miR‐26b decreased PTEN expression at both mRNA and protein levels. Overexpression of miR‐221 or miR‐26b in MSCs increased the phosphorylation of focal adhesion kinase (FAK), a downstream effector of PTEN, which regulates cell migration through assembly and distribution of focal adhesions (FAs), and more dot‐like FAs were localized at the periphery of these cells. Altering miR‐221 or miR‐26b expression influenced the directed migration of MSCs toward HGF. Inhibition of miR‐221 or miR‐26b suppressed the phosphorylation of Akt and FAK and upregulated PTEN expression, which was partly restored by HGF treatment. Collectively, these results demonstrate that miR‐221 and miR‐26b participate in regulating the chemotactic response of MSCs toward HGF. J. Cell. Biochem. 117: 1370–1383, 2016. © 2015 Wiley Periodicals, Inc.</description><identifier>ISSN: 0730-2312</identifier><identifier>EISSN: 1097-4644</identifier><identifier>DOI: 10.1002/jcb.25428</identifier><identifier>PMID: 26538296</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>1-Phosphatidylinositol 3-kinase ; AKT protein ; Animals ; Cell migration ; Cell Movement - drug effects ; Chemotactic response ; Chemotaxis ; Chemotaxis - drug effects ; Chromosomes ; Focal adhesion kinase ; focal adhesion kinase (FAK) ; Focal Adhesion Kinase 1 - metabolism ; Gene expression ; Gene Expression Profiling ; Gene Expression Regulation - drug effects ; Growth factors ; Hepatocyte growth factor ; hepatocyte growth factor (HGF) ; Hepatocyte Growth Factor - pharmacology ; Homology ; Kinases ; Mesenchymal stem cells ; mesenchymal stem cells (MSCs) ; Mesenchymal Stromal Cells - cytology ; Mesenchymal Stromal Cells - drug effects ; Mesenchyme ; MicroRNAs ; MicroRNAs - genetics ; migration ; miR-221 and miR-26b ; miRNA ; Molecular modelling ; mRNA ; Phosphorylation ; Proto-Oncogene Proteins c-akt - metabolism ; PTEN ; PTEN protein ; Rats ; Ribonucleic acid ; RNA ; Signal Transduction ; Stem cells ; Target recognition ; Tensin</subject><ispartof>Journal of cellular biochemistry, 2016-06, Vol.117 (6), p.1370-1383</ispartof><rights>2015 Wiley Periodicals, Inc.</rights><rights>2016 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5188-14c61913f99eab5a6f656355a4e356bd3f7f738e75e3e0f8ac9118bf099d8ec93</citedby><cites>FETCH-LOGICAL-c5188-14c61913f99eab5a6f656355a4e356bd3f7f738e75e3e0f8ac9118bf099d8ec93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjcb.25428$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjcb.25428$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26538296$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhu, Aisi</creatorcontrib><creatorcontrib>Kang, Naixin</creatorcontrib><creatorcontrib>He, Lihong</creatorcontrib><creatorcontrib>Li, Xianyang</creatorcontrib><creatorcontrib>Xu, Xiaojing</creatorcontrib><creatorcontrib>Zhang, Huanxiang</creatorcontrib><title>MiR-221 and miR-26b Regulate Chemotactic Migration of MSCs Toward HGF Through Activation of Akt and FAK</title><title>Journal of cellular biochemistry</title><addtitle>J. Cell. Biochem.</addtitle><description>ABSTRACT The chemotactic migration of mesenchymal stem cells (MSCs) is fundamental for their use in cell‐based therapies, but little is known about the molecular mechanisms that regulate their directed migration. MicroRNAs (miRNAs) participate in the regulation of a large variety of cellular processes. However, their roles in regulating the responses of MSCs to hepatocyte growth factor (HGF) remain elusive. Here, we found that microRNA‐221 (miR‐221) and microRNA‐26b (miR‐26b) were upregulated in MSCs subjected to HGF. Overexpression of miR‐221 or miR‐26b enhanced MSC migration through activation of PI3K/Akt signaling. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) was identified as a potential target of miR‐221 and miR‐26b; overexpression of miR‐221 or miR‐26b decreased PTEN expression at both mRNA and protein levels. Overexpression of miR‐221 or miR‐26b in MSCs increased the phosphorylation of focal adhesion kinase (FAK), a downstream effector of PTEN, which regulates cell migration through assembly and distribution of focal adhesions (FAs), and more dot‐like FAs were localized at the periphery of these cells. Altering miR‐221 or miR‐26b expression influenced the directed migration of MSCs toward HGF. Inhibition of miR‐221 or miR‐26b suppressed the phosphorylation of Akt and FAK and upregulated PTEN expression, which was partly restored by HGF treatment. Collectively, these results demonstrate that miR‐221 and miR‐26b participate in regulating the chemotactic response of MSCs toward HGF. J. Cell. 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Cell. Biochem.</addtitle><date>2016-06</date><risdate>2016</risdate><volume>117</volume><issue>6</issue><spage>1370</spage><epage>1383</epage><pages>1370-1383</pages><issn>0730-2312</issn><eissn>1097-4644</eissn><abstract>ABSTRACT The chemotactic migration of mesenchymal stem cells (MSCs) is fundamental for their use in cell‐based therapies, but little is known about the molecular mechanisms that regulate their directed migration. MicroRNAs (miRNAs) participate in the regulation of a large variety of cellular processes. However, their roles in regulating the responses of MSCs to hepatocyte growth factor (HGF) remain elusive. Here, we found that microRNA‐221 (miR‐221) and microRNA‐26b (miR‐26b) were upregulated in MSCs subjected to HGF. Overexpression of miR‐221 or miR‐26b enhanced MSC migration through activation of PI3K/Akt signaling. Phosphatase and tensin homolog deleted on chromosome ten (PTEN) was identified as a potential target of miR‐221 and miR‐26b; overexpression of miR‐221 or miR‐26b decreased PTEN expression at both mRNA and protein levels. Overexpression of miR‐221 or miR‐26b in MSCs increased the phosphorylation of focal adhesion kinase (FAK), a downstream effector of PTEN, which regulates cell migration through assembly and distribution of focal adhesions (FAs), and more dot‐like FAs were localized at the periphery of these cells. Altering miR‐221 or miR‐26b expression influenced the directed migration of MSCs toward HGF. Inhibition of miR‐221 or miR‐26b suppressed the phosphorylation of Akt and FAK and upregulated PTEN expression, which was partly restored by HGF treatment. Collectively, these results demonstrate that miR‐221 and miR‐26b participate in regulating the chemotactic response of MSCs toward HGF. J. Cell. Biochem. 117: 1370–1383, 2016. © 2015 Wiley Periodicals, Inc.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>26538296</pmid><doi>10.1002/jcb.25428</doi><tpages>14</tpages></addata></record>
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subjects 1-Phosphatidylinositol 3-kinase
AKT protein
Animals
Cell migration
Cell Movement - drug effects
Chemotactic response
Chemotaxis
Chemotaxis - drug effects
Chromosomes
Focal adhesion kinase
focal adhesion kinase (FAK)
Focal Adhesion Kinase 1 - metabolism
Gene expression
Gene Expression Profiling
Gene Expression Regulation - drug effects
Growth factors
Hepatocyte growth factor
hepatocyte growth factor (HGF)
Hepatocyte Growth Factor - pharmacology
Homology
Kinases
Mesenchymal stem cells
mesenchymal stem cells (MSCs)
Mesenchymal Stromal Cells - cytology
Mesenchymal Stromal Cells - drug effects
Mesenchyme
MicroRNAs
MicroRNAs - genetics
migration
miR-221 and miR-26b
miRNA
Molecular modelling
mRNA
Phosphorylation
Proto-Oncogene Proteins c-akt - metabolism
PTEN
PTEN protein
Rats
Ribonucleic acid
RNA
Signal Transduction
Stem cells
Target recognition
Tensin
title MiR-221 and miR-26b Regulate Chemotactic Migration of MSCs Toward HGF Through Activation of Akt and FAK
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