Involvement of profilin-1 in angiotensin II-induced vascular smooth muscle cell proliferation

Abstract Profilin-1, a regulator of actin polymerization, has recently been linked to vascular hypertrophy and remodeling. Whether profilin-1 is involved in angiotensin (Ang) II-induced proliferation of vascular smooth muscle cells leading to vascular remodeling in hypertension remains unclear. The...

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Veröffentlicht in:Vascular pharmacology 2011-07, Vol.55 (1), p.34-41
Hauptverfasser: Cheng, Jin-Fang, Ni, Guo-Hua, Chen, Mei-Fang, Li, Yuan-Jian, Wang, Yong-Jin, Wang, Chang-Lu, Yuan, Qiong, Shi, Rui-Zheng, Hu, Chang-Ping, Yang, Tian-Lun
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container_issue 1
container_start_page 34
container_title Vascular pharmacology
container_volume 55
creator Cheng, Jin-Fang
Ni, Guo-Hua
Chen, Mei-Fang
Li, Yuan-Jian
Wang, Yong-Jin
Wang, Chang-Lu
Yuan, Qiong
Shi, Rui-Zheng
Hu, Chang-Ping
Yang, Tian-Lun
description Abstract Profilin-1, a regulator of actin polymerization, has recently been linked to vascular hypertrophy and remodeling. Whether profilin-1 is involved in angiotensin (Ang) II-induced proliferation of vascular smooth muscle cells leading to vascular remodeling in hypertension remains unclear. The present study was designed to analyze the correlation of profilin-1 and vascular remodeling during hypertension and to evaluate the role of profilin-1 in proliferation of vascular smooth muscle cells and the underlying mechanisms. The vascular morphology and the expression of profilin-1 in arterial tissues of spontaneously hypertensive rats and Wistar–Kyoto rats were assessed. The profilin-1 expression was significantly increased concomitantly with definite vascular remodeling by evaluating the media thickness, lumen diameter, media thickness-to-lumen diameter ratio and mean nuclear area in artery media in spontaneously hypertensive rats, which was inhibited by treatment with losartan. In cultured rat aortic smooth muscle cells (RASMCs), Ang II induced profilin-1 expression in a dose- and time-dependent manner. Knockdown of profilin-1 using small hairpin RNA inhibited Ang II-induced proliferation of RASMCs. Moreover, blockade of JAK2/STAT3 signaling pathway also inhibited Ang II-induced proliferation of RASMCs and profilin-1 expression. These results suggest that profilin-1 mediates the proliferation of RASMCs induced by Ang II via activation of Ang II type 1 receptor/JAK2/STAT3 signaling pathway, which may contribute to vascular remodeling in hypertension.
doi_str_mv 10.1016/j.vph.2011.04.003
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Whether profilin-1 is involved in angiotensin (Ang) II-induced proliferation of vascular smooth muscle cells leading to vascular remodeling in hypertension remains unclear. The present study was designed to analyze the correlation of profilin-1 and vascular remodeling during hypertension and to evaluate the role of profilin-1 in proliferation of vascular smooth muscle cells and the underlying mechanisms. The vascular morphology and the expression of profilin-1 in arterial tissues of spontaneously hypertensive rats and Wistar–Kyoto rats were assessed. The profilin-1 expression was significantly increased concomitantly with definite vascular remodeling by evaluating the media thickness, lumen diameter, media thickness-to-lumen diameter ratio and mean nuclear area in artery media in spontaneously hypertensive rats, which was inhibited by treatment with losartan. In cultured rat aortic smooth muscle cells (RASMCs), Ang II induced profilin-1 expression in a dose- and time-dependent manner. Knockdown of profilin-1 using small hairpin RNA inhibited Ang II-induced proliferation of RASMCs. Moreover, blockade of JAK2/STAT3 signaling pathway also inhibited Ang II-induced proliferation of RASMCs and profilin-1 expression. These results suggest that profilin-1 mediates the proliferation of RASMCs induced by Ang II via activation of Ang II type 1 receptor/JAK2/STAT3 signaling pathway, which may contribute to vascular remodeling in hypertension.</description><identifier>ISSN: 1537-1891</identifier><identifier>EISSN: 1879-3649</identifier><identifier>DOI: 10.1016/j.vph.2011.04.003</identifier><identifier>PMID: 21586339</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Angiotensin II ; Angiotensin II - metabolism ; Angiotensin II - pharmacology ; Animals ; Aorta, Thoracic - drug effects ; Aorta, Thoracic - metabolism ; Blood Pressure - drug effects ; Cardiovascular ; Cell Growth Processes - drug effects ; Cell Growth Processes - physiology ; Cells, Cultured ; Gene Knockdown Techniques - methods ; Hypertension ; Hypertension - metabolism ; Janus Kinase 2 - antagonists &amp; inhibitors ; Janus Kinase 2 - metabolism ; Losartan - pharmacology ; Male ; Mesenteric Arteries - cytology ; Mesenteric Arteries - drug effects ; Mesenteric Arteries - metabolism ; Muscle, Smooth, Vascular - cytology ; Muscle, Smooth, Vascular - drug effects ; Muscle, Smooth, Vascular - metabolism ; Myocytes, Smooth Muscle - cytology ; Myocytes, Smooth Muscle - drug effects ; Myocytes, Smooth Muscle - metabolism ; Profilin-1 ; Profilins - antagonists &amp; inhibitors ; Profilins - genetics ; Profilins - metabolism ; Proliferation ; Rats ; Rats, Inbred SHR ; Rats, Inbred WKY ; Receptor, Angiotensin, Type 1 - metabolism ; Signal Transduction - drug effects ; STAT3 Transcription Factor - antagonists &amp; inhibitors ; STAT3 Transcription Factor - metabolism ; Vascular smooth muscle cells</subject><ispartof>Vascular pharmacology, 2011-07, Vol.55 (1), p.34-41</ispartof><rights>Elsevier Inc.</rights><rights>2011 Elsevier Inc.</rights><rights>Copyright © 2011 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c407t-fb1f1c868e1752c89792e5a61626adcfa4c90ce22d086e436568bcf43a4eda313</citedby><cites>FETCH-LOGICAL-c407t-fb1f1c868e1752c89792e5a61626adcfa4c90ce22d086e436568bcf43a4eda313</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1537189111000358$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21586339$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cheng, Jin-Fang</creatorcontrib><creatorcontrib>Ni, Guo-Hua</creatorcontrib><creatorcontrib>Chen, Mei-Fang</creatorcontrib><creatorcontrib>Li, Yuan-Jian</creatorcontrib><creatorcontrib>Wang, Yong-Jin</creatorcontrib><creatorcontrib>Wang, Chang-Lu</creatorcontrib><creatorcontrib>Yuan, Qiong</creatorcontrib><creatorcontrib>Shi, Rui-Zheng</creatorcontrib><creatorcontrib>Hu, Chang-Ping</creatorcontrib><creatorcontrib>Yang, Tian-Lun</creatorcontrib><title>Involvement of profilin-1 in angiotensin II-induced vascular smooth muscle cell proliferation</title><title>Vascular pharmacology</title><addtitle>Vascul Pharmacol</addtitle><description>Abstract Profilin-1, a regulator of actin polymerization, has recently been linked to vascular hypertrophy and remodeling. Whether profilin-1 is involved in angiotensin (Ang) II-induced proliferation of vascular smooth muscle cells leading to vascular remodeling in hypertension remains unclear. The present study was designed to analyze the correlation of profilin-1 and vascular remodeling during hypertension and to evaluate the role of profilin-1 in proliferation of vascular smooth muscle cells and the underlying mechanisms. The vascular morphology and the expression of profilin-1 in arterial tissues of spontaneously hypertensive rats and Wistar–Kyoto rats were assessed. The profilin-1 expression was significantly increased concomitantly with definite vascular remodeling by evaluating the media thickness, lumen diameter, media thickness-to-lumen diameter ratio and mean nuclear area in artery media in spontaneously hypertensive rats, which was inhibited by treatment with losartan. In cultured rat aortic smooth muscle cells (RASMCs), Ang II induced profilin-1 expression in a dose- and time-dependent manner. Knockdown of profilin-1 using small hairpin RNA inhibited Ang II-induced proliferation of RASMCs. Moreover, blockade of JAK2/STAT3 signaling pathway also inhibited Ang II-induced proliferation of RASMCs and profilin-1 expression. These results suggest that profilin-1 mediates the proliferation of RASMCs induced by Ang II via activation of Ang II type 1 receptor/JAK2/STAT3 signaling pathway, which may contribute to vascular remodeling in hypertension.</description><subject>Angiotensin II</subject><subject>Angiotensin II - metabolism</subject><subject>Angiotensin II - pharmacology</subject><subject>Animals</subject><subject>Aorta, Thoracic - drug effects</subject><subject>Aorta, Thoracic - metabolism</subject><subject>Blood Pressure - drug effects</subject><subject>Cardiovascular</subject><subject>Cell Growth Processes - drug effects</subject><subject>Cell Growth Processes - physiology</subject><subject>Cells, Cultured</subject><subject>Gene Knockdown Techniques - methods</subject><subject>Hypertension</subject><subject>Hypertension - metabolism</subject><subject>Janus Kinase 2 - antagonists &amp; inhibitors</subject><subject>Janus Kinase 2 - metabolism</subject><subject>Losartan - pharmacology</subject><subject>Male</subject><subject>Mesenteric Arteries - cytology</subject><subject>Mesenteric Arteries - drug effects</subject><subject>Mesenteric Arteries - metabolism</subject><subject>Muscle, Smooth, Vascular - cytology</subject><subject>Muscle, Smooth, Vascular - drug effects</subject><subject>Muscle, Smooth, Vascular - metabolism</subject><subject>Myocytes, Smooth Muscle - cytology</subject><subject>Myocytes, Smooth Muscle - drug effects</subject><subject>Myocytes, Smooth Muscle - metabolism</subject><subject>Profilin-1</subject><subject>Profilins - antagonists &amp; inhibitors</subject><subject>Profilins - genetics</subject><subject>Profilins - metabolism</subject><subject>Proliferation</subject><subject>Rats</subject><subject>Rats, Inbred SHR</subject><subject>Rats, Inbred WKY</subject><subject>Receptor, Angiotensin, Type 1 - metabolism</subject><subject>Signal Transduction - drug effects</subject><subject>STAT3 Transcription Factor - antagonists &amp; inhibitors</subject><subject>STAT3 Transcription Factor - metabolism</subject><subject>Vascular smooth muscle cells</subject><issn>1537-1891</issn><issn>1879-3649</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUFv1DAQhS0EoqXwA7ig3DgleGLHsYWEhKoCK1XqgfaILK8zpl4Se7GTSP33ONrCgUPlg-fw3vP4e4S8BdoABfHh0KzH-6alAA3lDaXsGTkH2auaCa6el7ljfQ1SwRl5lfOBUpBSqJfkrIVOCsbUOfmxC2scV5wwzFV01TFF50cfaqh8qEz46eOMIZd5t6t9GBaLQ7WabJfRpCpPMc731bRkO2JlcRy3gNE7TGb2MbwmL5wZM755vC_I3Zer28tv9fXN193l5-vactrPtduDAyuFROi71krVqxY7I0C0wgzWGW4Vtdi2A5UCOROdkHvrODMcB8OAXZD3p9zy-u8F86wnn7d1TMC4ZC0lL4dJVZRwUtoUc07o9DH5yaQHDVRvUPVBF6h6g6op1wVq8bx7TF_2Ew7_HH8pFsHHkwDLH1ePSWfrMRRUPqGd9RD9k_Gf_nPbUoC3ZvyFD5gPcUmhwNOgc6up_r61upUKQIu9k-wPruOdlA</recordid><startdate>20110701</startdate><enddate>20110701</enddate><creator>Cheng, Jin-Fang</creator><creator>Ni, Guo-Hua</creator><creator>Chen, Mei-Fang</creator><creator>Li, Yuan-Jian</creator><creator>Wang, Yong-Jin</creator><creator>Wang, Chang-Lu</creator><creator>Yuan, Qiong</creator><creator>Shi, Rui-Zheng</creator><creator>Hu, Chang-Ping</creator><creator>Yang, Tian-Lun</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20110701</creationdate><title>Involvement of profilin-1 in angiotensin II-induced vascular smooth muscle cell proliferation</title><author>Cheng, Jin-Fang ; Ni, Guo-Hua ; Chen, Mei-Fang ; Li, Yuan-Jian ; Wang, Yong-Jin ; Wang, Chang-Lu ; Yuan, Qiong ; Shi, Rui-Zheng ; Hu, Chang-Ping ; Yang, Tian-Lun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c407t-fb1f1c868e1752c89792e5a61626adcfa4c90ce22d086e436568bcf43a4eda313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Angiotensin II</topic><topic>Angiotensin II - metabolism</topic><topic>Angiotensin II - pharmacology</topic><topic>Animals</topic><topic>Aorta, Thoracic - drug effects</topic><topic>Aorta, Thoracic - metabolism</topic><topic>Blood Pressure - drug effects</topic><topic>Cardiovascular</topic><topic>Cell Growth Processes - drug effects</topic><topic>Cell Growth Processes - physiology</topic><topic>Cells, Cultured</topic><topic>Gene Knockdown Techniques - methods</topic><topic>Hypertension</topic><topic>Hypertension - metabolism</topic><topic>Janus Kinase 2 - antagonists &amp; 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Whether profilin-1 is involved in angiotensin (Ang) II-induced proliferation of vascular smooth muscle cells leading to vascular remodeling in hypertension remains unclear. The present study was designed to analyze the correlation of profilin-1 and vascular remodeling during hypertension and to evaluate the role of profilin-1 in proliferation of vascular smooth muscle cells and the underlying mechanisms. The vascular morphology and the expression of profilin-1 in arterial tissues of spontaneously hypertensive rats and Wistar–Kyoto rats were assessed. The profilin-1 expression was significantly increased concomitantly with definite vascular remodeling by evaluating the media thickness, lumen diameter, media thickness-to-lumen diameter ratio and mean nuclear area in artery media in spontaneously hypertensive rats, which was inhibited by treatment with losartan. In cultured rat aortic smooth muscle cells (RASMCs), Ang II induced profilin-1 expression in a dose- and time-dependent manner. Knockdown of profilin-1 using small hairpin RNA inhibited Ang II-induced proliferation of RASMCs. Moreover, blockade of JAK2/STAT3 signaling pathway also inhibited Ang II-induced proliferation of RASMCs and profilin-1 expression. These results suggest that profilin-1 mediates the proliferation of RASMCs induced by Ang II via activation of Ang II type 1 receptor/JAK2/STAT3 signaling pathway, which may contribute to vascular remodeling in hypertension.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>21586339</pmid><doi>10.1016/j.vph.2011.04.003</doi><tpages>8</tpages></addata></record>
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subjects Angiotensin II
Angiotensin II - metabolism
Angiotensin II - pharmacology
Animals
Aorta, Thoracic - drug effects
Aorta, Thoracic - metabolism
Blood Pressure - drug effects
Cardiovascular
Cell Growth Processes - drug effects
Cell Growth Processes - physiology
Cells, Cultured
Gene Knockdown Techniques - methods
Hypertension
Hypertension - metabolism
Janus Kinase 2 - antagonists & inhibitors
Janus Kinase 2 - metabolism
Losartan - pharmacology
Male
Mesenteric Arteries - cytology
Mesenteric Arteries - drug effects
Mesenteric Arteries - metabolism
Muscle, Smooth, Vascular - cytology
Muscle, Smooth, Vascular - drug effects
Muscle, Smooth, Vascular - metabolism
Myocytes, Smooth Muscle - cytology
Myocytes, Smooth Muscle - drug effects
Myocytes, Smooth Muscle - metabolism
Profilin-1
Profilins - antagonists & inhibitors
Profilins - genetics
Profilins - metabolism
Proliferation
Rats
Rats, Inbred SHR
Rats, Inbred WKY
Receptor, Angiotensin, Type 1 - metabolism
Signal Transduction - drug effects
STAT3 Transcription Factor - antagonists & inhibitors
STAT3 Transcription Factor - metabolism
Vascular smooth muscle cells
title Involvement of profilin-1 in angiotensin II-induced vascular smooth muscle cell proliferation
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