Aging differentially modulates the Wnt pro‐survival signalling pathways in vascular smooth muscle cells

We previously reported pro‐survival effects of Wnt3a and Wnt5a proteins in vascular smooth muscle cells (VSMCs). Wnt5a achieved this through induction of Wnt1‐inducible signalling pathway protein‐1 (WISP‐1) consequent to β‐catenin/CREB‐dependent, TCF‐independent, signalling. However, we found that a...

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Veröffentlicht in:Aging cell 2019-02, Vol.18 (1), p.e12844-n/a
Hauptverfasser: Brown, Bethan A., Connolly, Georgia M., Mill, Carina E. J., Williams, Helen, Angelini, Gianni D., Johnson, Jason L., George, Sarah J.
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container_issue 1
container_start_page e12844
container_title Aging cell
container_volume 18
creator Brown, Bethan A.
Connolly, Georgia M.
Mill, Carina E. J.
Williams, Helen
Angelini, Gianni D.
Johnson, Jason L.
George, Sarah J.
description We previously reported pro‐survival effects of Wnt3a and Wnt5a proteins in vascular smooth muscle cells (VSMCs). Wnt5a achieved this through induction of Wnt1‐inducible signalling pathway protein‐1 (WISP‐1) consequent to β‐catenin/CREB‐dependent, TCF‐independent, signalling. However, we found that as atherosclerosis advances, although Wnt5a protein was increased, WISP‐1 was reduced. We hypothesized this disconnect could be due to aging. In this study, we elucidate the mechanism underlying Wnt3a pro‐survival signalling and demonstrate the differential effect of age on Wnt3a‐ and Wnt5a‐mediated survival. We show Wnt3a protein was expressed in human atherosclerotic coronary arteries and co‐located with macrophages and VSMCs. Meanwhile, Wnt3a stimulation of primary mouse VSMCs increased β‐catenin nuclear translocation and TCF, but not CREB, activation. Wnt3a increased mRNA expression of the pro‐survival factor WISP‐2 in a TCF‐dependent manner. Functionally, β‐catenin/TCF inhibition or WISP‐2 neutralization significantly impaired Wnt3a‐mediated VSMC survival. WISP‐2 was upregulated in human atherosclerosis and partly co‐localized with Wnt3a. The pro‐survival action of Wnt3a was effective in VSMCs from young (2 month) and old (18–20 month) mice, whereas Wnt5a‐mediated rescue was impaired with age. Further investigation revealed that although Wnt5a induced β‐catenin nuclear translocation in VSMCs from both ages, CREB phosphorylation and WISP‐1 upregulation did not occur in old VSMCs. Unlike Wnt5a, pro‐survival Wnt3a signalling involves β‐catenin/TCF and WISP‐2. While Wnt3a‐mediated survival was unchanged with age, Wnt5a‐mediated survival was lost due to impaired CREB activation and WISP‐1 regulation. Greater understanding of the effect of age on Wnt signalling may identify targets to promote VSMC survival in elderly patients with atherosclerosis.
doi_str_mv 10.1111/acel.12844
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J. ; Williams, Helen ; Angelini, Gianni D. ; Johnson, Jason L. ; George, Sarah J.</creator><creatorcontrib>Brown, Bethan A. ; Connolly, Georgia M. ; Mill, Carina E. J. ; Williams, Helen ; Angelini, Gianni D. ; Johnson, Jason L. ; George, Sarah J.</creatorcontrib><description>We previously reported pro‐survival effects of Wnt3a and Wnt5a proteins in vascular smooth muscle cells (VSMCs). Wnt5a achieved this through induction of Wnt1‐inducible signalling pathway protein‐1 (WISP‐1) consequent to β‐catenin/CREB‐dependent, TCF‐independent, signalling. However, we found that as atherosclerosis advances, although Wnt5a protein was increased, WISP‐1 was reduced. We hypothesized this disconnect could be due to aging. In this study, we elucidate the mechanism underlying Wnt3a pro‐survival signalling and demonstrate the differential effect of age on Wnt3a‐ and Wnt5a‐mediated survival. We show Wnt3a protein was expressed in human atherosclerotic coronary arteries and co‐located with macrophages and VSMCs. Meanwhile, Wnt3a stimulation of primary mouse VSMCs increased β‐catenin nuclear translocation and TCF, but not CREB, activation. Wnt3a increased mRNA expression of the pro‐survival factor WISP‐2 in a TCF‐dependent manner. Functionally, β‐catenin/TCF inhibition or WISP‐2 neutralization significantly impaired Wnt3a‐mediated VSMC survival. WISP‐2 was upregulated in human atherosclerosis and partly co‐localized with Wnt3a. The pro‐survival action of Wnt3a was effective in VSMCs from young (2 month) and old (18–20 month) mice, whereas Wnt5a‐mediated rescue was impaired with age. Further investigation revealed that although Wnt5a induced β‐catenin nuclear translocation in VSMCs from both ages, CREB phosphorylation and WISP‐1 upregulation did not occur in old VSMCs. Unlike Wnt5a, pro‐survival Wnt3a signalling involves β‐catenin/TCF and WISP‐2. 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Further investigation revealed that although Wnt5a induced β‐catenin nuclear translocation in VSMCs from both ages, CREB phosphorylation and WISP‐1 upregulation did not occur in old VSMCs. Unlike Wnt5a, pro‐survival Wnt3a signalling involves β‐catenin/TCF and WISP‐2. While Wnt3a‐mediated survival was unchanged with age, Wnt5a‐mediated survival was lost due to impaired CREB activation and WISP‐1 regulation. 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J. ; Williams, Helen ; Angelini, Gianni D. ; Johnson, Jason L. ; George, Sarah J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5154-10bf17d43f3db256a3e3b26e661470e65c5e334843476c27f5d4a12001abbf93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Age</topic><topic>Aging</topic><topic>Animals</topic><topic>apoptosis</topic><topic>Apoptosis - drug effects</topic><topic>Arteriosclerosis</topic><topic>Atherosclerosis</topic><topic>Atherosclerosis - metabolism</topic><topic>Atherosclerosis - pathology</topic><topic>beta Catenin - metabolism</topic><topic>Catenin</topic><topic>CCN Intercellular Signaling Proteins - metabolism</topic><topic>Cell Survival - drug effects</topic><topic>Cellular Senescence - drug effects</topic><topic>Child</topic><topic>Coronary artery</topic><topic>Cyclic AMP response element-binding protein</topic><topic>Cyclic AMP Response Element-Binding Protein - metabolism</topic><topic>Frizzled Receptors - metabolism</topic><topic>Gene expression</topic><topic>Gene Expression Regulation - drug effects</topic><topic>Geriatrics</topic><topic>Humans</topic><topic>Hydrogen Peroxide - toxicity</topic><topic>Macrophages</topic><topic>Mice, Inbred C57BL</topic><topic>Middle Aged</topic><topic>Models, Biological</topic><topic>Muscle, Smooth, Vascular - cytology</topic><topic>Myocytes, Smooth Muscle - cytology</topic><topic>Myocytes, Smooth Muscle - drug effects</topic><topic>Myocytes, Smooth Muscle - metabolism</topic><topic>Nuclear transport</topic><topic>Original Paper</topic><topic>Original Papers</topic><topic>oxidative stress</topic><topic>Phosphorylation</topic><topic>Protein Binding - drug effects</topic><topic>Proteins</topic><topic>Repressor Proteins - metabolism</topic><topic>RNA</topic><topic>RNA, Messenger - genetics</topic><topic>RNA, Messenger - metabolism</topic><topic>Signal transduction</topic><topic>Smooth muscle</topic><topic>Survival factor</topic><topic>TCF Transcription Factors - metabolism</topic><topic>Up-Regulation - drug effects</topic><topic>vascular smooth muscle cell</topic><topic>Wnt</topic><topic>Wnt protein</topic><topic>Wnt Signaling Pathway - drug effects</topic><topic>Wnt-5a Protein - metabolism</topic><topic>Wnt3A Protein - metabolism</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Brown, Bethan A.</creatorcontrib><creatorcontrib>Connolly, Georgia M.</creatorcontrib><creatorcontrib>Mill, Carina E. 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J.</au><au>Williams, Helen</au><au>Angelini, Gianni D.</au><au>Johnson, Jason L.</au><au>George, Sarah J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Aging differentially modulates the Wnt pro‐survival signalling pathways in vascular smooth muscle cells</atitle><jtitle>Aging cell</jtitle><addtitle>Aging Cell</addtitle><date>2019-02</date><risdate>2019</risdate><volume>18</volume><issue>1</issue><spage>e12844</spage><epage>n/a</epage><pages>e12844-n/a</pages><issn>1474-9718</issn><eissn>1474-9726</eissn><abstract>We previously reported pro‐survival effects of Wnt3a and Wnt5a proteins in vascular smooth muscle cells (VSMCs). Wnt5a achieved this through induction of Wnt1‐inducible signalling pathway protein‐1 (WISP‐1) consequent to β‐catenin/CREB‐dependent, TCF‐independent, signalling. However, we found that as atherosclerosis advances, although Wnt5a protein was increased, WISP‐1 was reduced. We hypothesized this disconnect could be due to aging. In this study, we elucidate the mechanism underlying Wnt3a pro‐survival signalling and demonstrate the differential effect of age on Wnt3a‐ and Wnt5a‐mediated survival. We show Wnt3a protein was expressed in human atherosclerotic coronary arteries and co‐located with macrophages and VSMCs. Meanwhile, Wnt3a stimulation of primary mouse VSMCs increased β‐catenin nuclear translocation and TCF, but not CREB, activation. Wnt3a increased mRNA expression of the pro‐survival factor WISP‐2 in a TCF‐dependent manner. Functionally, β‐catenin/TCF inhibition or WISP‐2 neutralization significantly impaired Wnt3a‐mediated VSMC survival. WISP‐2 was upregulated in human atherosclerosis and partly co‐localized with Wnt3a. The pro‐survival action of Wnt3a was effective in VSMCs from young (2 month) and old (18–20 month) mice, whereas Wnt5a‐mediated rescue was impaired with age. Further investigation revealed that although Wnt5a induced β‐catenin nuclear translocation in VSMCs from both ages, CREB phosphorylation and WISP‐1 upregulation did not occur in old VSMCs. Unlike Wnt5a, pro‐survival Wnt3a signalling involves β‐catenin/TCF and WISP‐2. While Wnt3a‐mediated survival was unchanged with age, Wnt5a‐mediated survival was lost due to impaired CREB activation and WISP‐1 regulation. Greater understanding of the effect of age on Wnt signalling may identify targets to promote VSMC survival in elderly patients with atherosclerosis.</abstract><cop>England</cop><pub>John Wiley &amp; Sons, Inc</pub><pmid>30548452</pmid><doi>10.1111/acel.12844</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-1426-8257</orcidid><oa>free_for_read</oa></addata></record>
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subjects Adolescent
Adult
Age
Aging
Animals
apoptosis
Apoptosis - drug effects
Arteriosclerosis
Atherosclerosis
Atherosclerosis - metabolism
Atherosclerosis - pathology
beta Catenin - metabolism
Catenin
CCN Intercellular Signaling Proteins - metabolism
Cell Survival - drug effects
Cellular Senescence - drug effects
Child
Coronary artery
Cyclic AMP response element-binding protein
Cyclic AMP Response Element-Binding Protein - metabolism
Frizzled Receptors - metabolism
Gene expression
Gene Expression Regulation - drug effects
Geriatrics
Humans
Hydrogen Peroxide - toxicity
Macrophages
Mice, Inbred C57BL
Middle Aged
Models, Biological
Muscle, Smooth, Vascular - cytology
Myocytes, Smooth Muscle - cytology
Myocytes, Smooth Muscle - drug effects
Myocytes, Smooth Muscle - metabolism
Nuclear transport
Original Paper
Original Papers
oxidative stress
Phosphorylation
Protein Binding - drug effects
Proteins
Repressor Proteins - metabolism
RNA
RNA, Messenger - genetics
RNA, Messenger - metabolism
Signal transduction
Smooth muscle
Survival factor
TCF Transcription Factors - metabolism
Up-Regulation - drug effects
vascular smooth muscle cell
Wnt
Wnt protein
Wnt Signaling Pathway - drug effects
Wnt-5a Protein - metabolism
Wnt3A Protein - metabolism
Young Adult
title Aging differentially modulates the Wnt pro‐survival signalling pathways in vascular smooth muscle cells
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