Cysteine‐Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments

Objective Oxidative posttranslational modifications of intracellular proteins can potentially regulate signaling pathways relevant to cartilage destruction in arthritis. In this study, oxidation of cysteine residues to form sulfenic acid (S‐sulfenylation) was examined in osteoarthritic (OA) chondroc...

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Veröffentlicht in:Arthritis & rheumatology (Hoboken, N.J.) N.J.), 2016-01, Vol.68 (1), p.117-126
Hauptverfasser: Wood, Scott T., Long, David L., Reisz, Julie A., Yammani, Raghunatha R., Burke, Elizabeth A., Klomsiri, Chananat, Poole, Leslie B., Furdui, Cristina M., Loeser, Richard F.
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container_issue 1
container_start_page 117
container_title Arthritis & rheumatology (Hoboken, N.J.)
container_volume 68
creator Wood, Scott T.
Long, David L.
Reisz, Julie A.
Yammani, Raghunatha R.
Burke, Elizabeth A.
Klomsiri, Chananat
Poole, Leslie B.
Furdui, Cristina M.
Loeser, Richard F.
description Objective Oxidative posttranslational modifications of intracellular proteins can potentially regulate signaling pathways relevant to cartilage destruction in arthritis. In this study, oxidation of cysteine residues to form sulfenic acid (S‐sulfenylation) was examined in osteoarthritic (OA) chondrocytes and investigated in normal chondrocytes as a mechanism by which fragments of fibronectin (FN‐f) stimulate chondrocyte catabolic signaling. Methods Chondrocytes isolated from OA and normal human articular cartilage were analyzed using analogs of dimedone that specifically and irreversibly react with protein S‐sulfenylated cysteines. Global S‐sulfenylation was measured in cell lysates with and without FN‐f stimulation by immunoblotting and in fixed cells by confocal microscopy. S‐sulfenylation in specific proteins was identified by mass spectroscopy and confirmed by immunoblotting. Src activity was measured in live cells using a fluorescence resonance energy transfer biosensor. Results Proteins in chondrocytes isolated from OA cartilage were found to have elevated basal levels of S‐sulfenylation relative to those of chondrocytes from normal cartilage. Treatment of normal chondrocytes with FN‐f induced increased levels of S‐sulfenylation in multiple proteins, including the tyrosine kinase Src. FN‐f treatment also increased the levels of Src activity. Pretreatment with dimedone to alter S‐sulfenylation function or with Src kinase inhibitors inhibited FN‐f–induced production of matrix metalloproteinase 13. Conclusion These results demonstrate for the first time the presence of oxidative posttranslational modification of proteins in human articular chondrocytes by S‐sulfenylation. Due to the ability to regulate the activity of a number of cell signaling pathways, including catabolic mediators induced by fibronectin fragments, S‐sulfenylation may contribute to cartilage destruction in OA and warrants further investigation.
doi_str_mv 10.1002/art.39326
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In this study, oxidation of cysteine residues to form sulfenic acid (S‐sulfenylation) was examined in osteoarthritic (OA) chondrocytes and investigated in normal chondrocytes as a mechanism by which fragments of fibronectin (FN‐f) stimulate chondrocyte catabolic signaling. Methods Chondrocytes isolated from OA and normal human articular cartilage were analyzed using analogs of dimedone that specifically and irreversibly react with protein S‐sulfenylated cysteines. Global S‐sulfenylation was measured in cell lysates with and without FN‐f stimulation by immunoblotting and in fixed cells by confocal microscopy. S‐sulfenylation in specific proteins was identified by mass spectroscopy and confirmed by immunoblotting. Src activity was measured in live cells using a fluorescence resonance energy transfer biosensor. Results Proteins in chondrocytes isolated from OA cartilage were found to have elevated basal levels of S‐sulfenylation relative to those of chondrocytes from normal cartilage. Treatment of normal chondrocytes with FN‐f induced increased levels of S‐sulfenylation in multiple proteins, including the tyrosine kinase Src. FN‐f treatment also increased the levels of Src activity. Pretreatment with dimedone to alter S‐sulfenylation function or with Src kinase inhibitors inhibited FN‐f–induced production of matrix metalloproteinase 13. Conclusion These results demonstrate for the first time the presence of oxidative posttranslational modification of proteins in human articular chondrocytes by S‐sulfenylation. Due to the ability to regulate the activity of a number of cell signaling pathways, including catabolic mediators induced by fibronectin fragments, S‐sulfenylation may contribute to cartilage destruction in OA and warrants further investigation.</description><identifier>ISSN: 2326-5191</identifier><identifier>EISSN: 2326-5205</identifier><identifier>DOI: 10.1002/art.39326</identifier><identifier>PMID: 26314228</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Adult ; Aged ; Aged, 80 and over ; Cartilage, Articular - cytology ; Case-Control Studies ; Chondrocytes - drug effects ; Chondrocytes - metabolism ; Cyclohexanones - pharmacology ; Cysteine - metabolism ; Female ; Fibronectins - pharmacology ; History, Ancient ; Humans ; Immunoblotting ; Mass Spectrometry ; Matrix Metalloproteinase 13 - drug effects ; Matrix Metalloproteinase 13 - metabolism ; Microscopy, Confocal ; Middle Aged ; Osteoarthritis - metabolism ; Oxidation-Reduction ; Peptide Fragments - pharmacology ; Protein Processing, Post-Translational ; Proteins ; Signal Transduction ; src-Family Kinases - drug effects ; src-Family Kinases - metabolism ; Sulfenic Acids - metabolism</subject><ispartof>Arthritis &amp; rheumatology (Hoboken, N.J.), 2016-01, Vol.68 (1), p.117-126</ispartof><rights>2016, American College of Rheumatology</rights><rights>2016, American College of Rheumatology.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4766-82e312c5685e8f80b57a2a88dddace7d69577ca6216e34f62f70cdd98e7671853</citedby><cites>FETCH-LOGICAL-c4766-82e312c5685e8f80b57a2a88dddace7d69577ca6216e34f62f70cdd98e7671853</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%2Fart.39326$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fart.39326$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26314228$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wood, Scott T.</creatorcontrib><creatorcontrib>Long, David L.</creatorcontrib><creatorcontrib>Reisz, Julie A.</creatorcontrib><creatorcontrib>Yammani, Raghunatha R.</creatorcontrib><creatorcontrib>Burke, Elizabeth A.</creatorcontrib><creatorcontrib>Klomsiri, Chananat</creatorcontrib><creatorcontrib>Poole, Leslie B.</creatorcontrib><creatorcontrib>Furdui, Cristina M.</creatorcontrib><creatorcontrib>Loeser, Richard F.</creatorcontrib><title>Cysteine‐Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments</title><title>Arthritis &amp; rheumatology (Hoboken, N.J.)</title><addtitle>Arthritis Rheumatol</addtitle><description>Objective Oxidative posttranslational modifications of intracellular proteins can potentially regulate signaling pathways relevant to cartilage destruction in arthritis. In this study, oxidation of cysteine residues to form sulfenic acid (S‐sulfenylation) was examined in osteoarthritic (OA) chondrocytes and investigated in normal chondrocytes as a mechanism by which fragments of fibronectin (FN‐f) stimulate chondrocyte catabolic signaling. Methods Chondrocytes isolated from OA and normal human articular cartilage were analyzed using analogs of dimedone that specifically and irreversibly react with protein S‐sulfenylated cysteines. Global S‐sulfenylation was measured in cell lysates with and without FN‐f stimulation by immunoblotting and in fixed cells by confocal microscopy. S‐sulfenylation in specific proteins was identified by mass spectroscopy and confirmed by immunoblotting. Src activity was measured in live cells using a fluorescence resonance energy transfer biosensor. Results Proteins in chondrocytes isolated from OA cartilage were found to have elevated basal levels of S‐sulfenylation relative to those of chondrocytes from normal cartilage. Treatment of normal chondrocytes with FN‐f induced increased levels of S‐sulfenylation in multiple proteins, including the tyrosine kinase Src. FN‐f treatment also increased the levels of Src activity. Pretreatment with dimedone to alter S‐sulfenylation function or with Src kinase inhibitors inhibited FN‐f–induced production of matrix metalloproteinase 13. Conclusion These results demonstrate for the first time the presence of oxidative posttranslational modification of proteins in human articular chondrocytes by S‐sulfenylation. Due to the ability to regulate the activity of a number of cell signaling pathways, including catabolic mediators induced by fibronectin fragments, S‐sulfenylation may contribute to cartilage destruction in OA and warrants further investigation.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Cartilage, Articular - cytology</subject><subject>Case-Control Studies</subject><subject>Chondrocytes - drug effects</subject><subject>Chondrocytes - metabolism</subject><subject>Cyclohexanones - pharmacology</subject><subject>Cysteine - metabolism</subject><subject>Female</subject><subject>Fibronectins - pharmacology</subject><subject>History, Ancient</subject><subject>Humans</subject><subject>Immunoblotting</subject><subject>Mass Spectrometry</subject><subject>Matrix Metalloproteinase 13 - drug effects</subject><subject>Matrix Metalloproteinase 13 - metabolism</subject><subject>Microscopy, Confocal</subject><subject>Middle Aged</subject><subject>Osteoarthritis - metabolism</subject><subject>Oxidation-Reduction</subject><subject>Peptide Fragments - pharmacology</subject><subject>Protein Processing, Post-Translational</subject><subject>Proteins</subject><subject>Signal Transduction</subject><subject>src-Family Kinases - drug effects</subject><subject>src-Family Kinases - metabolism</subject><subject>Sulfenic Acids - metabolism</subject><issn>2326-5191</issn><issn>2326-5205</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc9qFTEUhwdRbKld-AIy4EYXt00yk38boQxeFSpCW3EZcpMzc1NmkppkqnfnI_iMPomp0xYVBLPICeTLL8n5quopRkcYIXKsYz5qZEPYg2qflLKiBNGHd2ss8V51mNIlKkNyxBB9XO0R1uCWELFfjd0uZXAefnz7_h6s0xlsfQY2fC3zMI86u-Dr0NcdjGN97gavR-eH2vm62wZvYzC7DKk-z266ocvpTy5v67XbxODB5AKuox4m8Dk9qR71ekxweFsPqo_r1xfd29XphzfvupPTlWk5YytBoMHEUCYoiF6gDeWaaCGstdoAt0xSzo1mBDNo2p6RniNjrRTAGceCNgfVqyX3at5MYE25O-pRXUU36bhTQTv15453WzWEa9WKVgoqS8CL24AYPs-QsppcMqUD2kOYk8JcIIopb_B_oMWBpLRpC_r8L_QyzLE0dKEaJhFBhXq5UCaGlCL09-_GSN0YV8W4-mW8sM9-_-g9eee3AMcL8MWNsPt3kjo5u1gifwIdl7bX</recordid><startdate>201601</startdate><enddate>201601</enddate><creator>Wood, Scott T.</creator><creator>Long, David L.</creator><creator>Reisz, Julie A.</creator><creator>Yammani, Raghunatha R.</creator><creator>Burke, Elizabeth A.</creator><creator>Klomsiri, Chananat</creator><creator>Poole, Leslie B.</creator><creator>Furdui, Cristina M.</creator><creator>Loeser, Richard F.</creator><general>Wiley Subscription Services, 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>7QL</scope><scope>7QP</scope><scope>7T5</scope><scope>7TM</scope><scope>7U7</scope><scope>C1K</scope><scope>H94</scope><scope>K9.</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>201601</creationdate><title>Cysteine‐Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments</title><author>Wood, Scott T. ; 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Calcified Tissue Abstracts</collection><collection>Immunology Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Arthritis &amp; rheumatology (Hoboken, N.J.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wood, Scott T.</au><au>Long, David L.</au><au>Reisz, Julie A.</au><au>Yammani, Raghunatha R.</au><au>Burke, Elizabeth A.</au><au>Klomsiri, Chananat</au><au>Poole, Leslie B.</au><au>Furdui, Cristina M.</au><au>Loeser, Richard F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cysteine‐Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments</atitle><jtitle>Arthritis &amp; rheumatology (Hoboken, N.J.)</jtitle><addtitle>Arthritis Rheumatol</addtitle><date>2016-01</date><risdate>2016</risdate><volume>68</volume><issue>1</issue><spage>117</spage><epage>126</epage><pages>117-126</pages><issn>2326-5191</issn><eissn>2326-5205</eissn><abstract>Objective Oxidative posttranslational modifications of intracellular proteins can potentially regulate signaling pathways relevant to cartilage destruction in arthritis. In this study, oxidation of cysteine residues to form sulfenic acid (S‐sulfenylation) was examined in osteoarthritic (OA) chondrocytes and investigated in normal chondrocytes as a mechanism by which fragments of fibronectin (FN‐f) stimulate chondrocyte catabolic signaling. Methods Chondrocytes isolated from OA and normal human articular cartilage were analyzed using analogs of dimedone that specifically and irreversibly react with protein S‐sulfenylated cysteines. Global S‐sulfenylation was measured in cell lysates with and without FN‐f stimulation by immunoblotting and in fixed cells by confocal microscopy. S‐sulfenylation in specific proteins was identified by mass spectroscopy and confirmed by immunoblotting. Src activity was measured in live cells using a fluorescence resonance energy transfer biosensor. Results Proteins in chondrocytes isolated from OA cartilage were found to have elevated basal levels of S‐sulfenylation relative to those of chondrocytes from normal cartilage. Treatment of normal chondrocytes with FN‐f induced increased levels of S‐sulfenylation in multiple proteins, including the tyrosine kinase Src. FN‐f treatment also increased the levels of Src activity. Pretreatment with dimedone to alter S‐sulfenylation function or with Src kinase inhibitors inhibited FN‐f–induced production of matrix metalloproteinase 13. Conclusion These results demonstrate for the first time the presence of oxidative posttranslational modification of proteins in human articular chondrocytes by S‐sulfenylation. Due to the ability to regulate the activity of a number of cell signaling pathways, including catabolic mediators induced by fibronectin fragments, S‐sulfenylation may contribute to cartilage destruction in OA and warrants further investigation.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>26314228</pmid><doi>10.1002/art.39326</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Aged, 80 and over
Cartilage, Articular - cytology
Case-Control Studies
Chondrocytes - drug effects
Chondrocytes - metabolism
Cyclohexanones - pharmacology
Cysteine - metabolism
Female
Fibronectins - pharmacology
History, Ancient
Humans
Immunoblotting
Mass Spectrometry
Matrix Metalloproteinase 13 - drug effects
Matrix Metalloproteinase 13 - metabolism
Microscopy, Confocal
Middle Aged
Osteoarthritis - metabolism
Oxidation-Reduction
Peptide Fragments - pharmacology
Protein Processing, Post-Translational
Proteins
Signal Transduction
src-Family Kinases - drug effects
src-Family Kinases - metabolism
Sulfenic Acids - metabolism
title Cysteine‐Mediated Redox Regulation of Cell Signaling in Chondrocytes Stimulated With Fibronectin Fragments
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