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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Glycine-extended gastrin activates two independent tyrosine-kinases in upstream of p85/p110 phosphatidylinositol 3-kinase in human colonic tumour cells</title>
<author><name sortKey="Ferrand, Audrey" sort="Ferrand, Audrey" uniqKey="Ferrand A" first="Audrey" last="Ferrand">Audrey Ferrand</name>
</author>
<author><name sortKey="Kowalski Chauvel, Aline" sort="Kowalski Chauvel, Aline" uniqKey="Kowalski Chauvel A" first="Aline" last="Kowalski-Chauvel">Aline Kowalski-Chauvel</name>
</author>
<author><name sortKey="Pannequin, Julie" sort="Pannequin, Julie" uniqKey="Pannequin J" first="Julie" last="Pannequin">Julie Pannequin</name>
</author>
<author><name sortKey="Bertrand, Claudine" sort="Bertrand, Claudine" uniqKey="Bertrand C" first="Claudine" last="Bertrand">Claudine Bertrand</name>
</author>
<author><name sortKey="Fourmy, Daniel" sort="Fourmy, Daniel" uniqKey="Fourmy D" first="Daniel" last="Fourmy">Daniel Fourmy</name>
</author>
<author><name sortKey="Dufresne, Marlene" sort="Dufresne, Marlene" uniqKey="Dufresne M" first="Marlene" last="Dufresne">Marlene Dufresne</name>
</author>
<author><name sortKey="Seva, Catherine" sort="Seva, Catherine" uniqKey="Seva C" first="Catherine" last="Seva">Catherine Seva</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">PMC</idno>
<idno type="pmid">16609991</idno>
<idno type="pmc">4087510</idno>
<idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4087510</idno>
<idno type="RBID">PMC:4087510</idno>
<idno type="doi">10.3748/wjg.v12.i12.1859</idno>
<date when="2006">2006</date>
<idno type="wicri:Area/Pmc/Corpus">001C36</idno>
<idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001C36</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Glycine-extended gastrin activates two independent tyrosine-kinases in upstream of p85/p110 phosphatidylinositol 3-kinase in human colonic tumour cells</title>
<author><name sortKey="Ferrand, Audrey" sort="Ferrand, Audrey" uniqKey="Ferrand A" first="Audrey" last="Ferrand">Audrey Ferrand</name>
</author>
<author><name sortKey="Kowalski Chauvel, Aline" sort="Kowalski Chauvel, Aline" uniqKey="Kowalski Chauvel A" first="Aline" last="Kowalski-Chauvel">Aline Kowalski-Chauvel</name>
</author>
<author><name sortKey="Pannequin, Julie" sort="Pannequin, Julie" uniqKey="Pannequin J" first="Julie" last="Pannequin">Julie Pannequin</name>
</author>
<author><name sortKey="Bertrand, Claudine" sort="Bertrand, Claudine" uniqKey="Bertrand C" first="Claudine" last="Bertrand">Claudine Bertrand</name>
</author>
<author><name sortKey="Fourmy, Daniel" sort="Fourmy, Daniel" uniqKey="Fourmy D" first="Daniel" last="Fourmy">Daniel Fourmy</name>
</author>
<author><name sortKey="Dufresne, Marlene" sort="Dufresne, Marlene" uniqKey="Dufresne M" first="Marlene" last="Dufresne">Marlene Dufresne</name>
</author>
<author><name sortKey="Seva, Catherine" sort="Seva, Catherine" uniqKey="Seva C" first="Catherine" last="Seva">Catherine Seva</name>
</author>
</analytic>
<series><title level="j">World Journal of Gastroenterology : WJG</title>
<idno type="ISSN">1007-9327</idno>
<idno type="eISSN">2219-2840</idno>
<imprint><date when="2006">2006</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"><p>AIM: To investigate whether Src, JAK2 and phosphatidylinositol 3-kinase (PI3K) pathways are involved in the proliferation of human colonic tumour cells induced by glycine-extended gastrin (G-gly), the precursor of the mature amidated gastrin and to elucidate the molecular interaction between these three kinases in response to this peptide.</p>
<p>METHODS: Using the human colonic tumour cell line HCT116 as a model, we first measured the activation of PI3K, p60-Src and JAK2 in response to G-gly by in vitro kinase assays. Then we investigated the involvement of these kinases in G-gly-induced cell proliferation by MTT test.</p>
<p>RESULTS: G-gly stimulation induced p60-Src, JAK2 and PI3K activation in HCT116. The different pathways were involved in proliferation of human colon cancer cells induced by G-gly. Furthermore, we found that both Src and JAK2 were necessary to PI3K regulation by this peptide. However, we did not find any cross-talk between the two tyrosine kinases.</p>
<p>CONCLUSION: Our results suggest that the p60-Src/PI3K and JAK2/PI3K pathways act independently to mediate G-gly proliferative effect on human colonic tumour cells.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">World J Gastroenterol</journal-id>
<journal-id journal-id-type="iso-abbrev">World J. Gastroenterol</journal-id>
<journal-id journal-id-type="publisher-id">WJG</journal-id>
<journal-title-group><journal-title>World Journal of Gastroenterology : WJG</journal-title>
</journal-title-group>
<issn pub-type="ppub">1007-9327</issn>
<issn pub-type="epub">2219-2840</issn>
<publisher><publisher-name>Baishideng Publishing Group Co., Limited</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">16609991</article-id>
<article-id pub-id-type="pmc">4087510</article-id>
<article-id pub-id-type="other">jWJG.v12.i12.pg1859</article-id>
<article-id pub-id-type="doi">10.3748/wjg.v12.i12.1859</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Colorectal Cancer</subject>
</subj-group>
</article-categories>
<title-group><article-title>Glycine-extended gastrin activates two independent tyrosine-kinases in upstream of p85/p110 phosphatidylinositol 3-kinase in human colonic tumour cells</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Ferrand</surname>
<given-names>Audrey</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Kowalski-Chauvel</surname>
<given-names>Aline</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Pannequin</surname>
<given-names>Julie</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Bertrand</surname>
<given-names>Claudine</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Fourmy</surname>
<given-names>Daniel</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Dufresne</surname>
<given-names>Marlene</given-names>
</name>
</contrib>
<contrib contrib-type="author"><name><surname>Seva</surname>
<given-names>Catherine</given-names>
</name>
</contrib>
<aff>Audrey Ferrand, Aline Kowalski-Chauvel, Claudine Bertrand, Daniel Fourmy, Marlene Dufresne, Catherine Seva, INSERM U.531, Groupe de Recherche de Biologie et Pathologie Digestives, IFR31, Institut Louis Bugnard, BP 84225, 31432 toulouse Cedex 4, France</aff>
<aff>Julie Pannequin, University of Melbourne Department of Surgery, Austin Campus, ARMC, Heidelberg, Victoria 3084, Australia</aff>
</contrib-group>
<author-notes><fn><p>Correspondence to: Catherine Seva, IFR31, Institut Louis Bugnard, BP 84225, Unité INSERM 531, Biologie et Pathologie Digestives, 31432 toulouse Cedex 4, France. <email>sevac@toulouse.inserm.fr</email>
</p>
<p>Telephone: +33-5-61322408 Fax: +33-5-61322403</p>
</fn>
</author-notes>
<pub-date pub-type="ppub"><day>28</day>
<month>3</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub"><day>28</day>
<month>3</month>
<year>2006</year>
</pub-date>
<volume>12</volume>
<issue>12</issue>
<fpage>1859</fpage>
<lpage>1864</lpage>
<history><date date-type="received"><day>13</day>
<month>9</month>
<year>2005</year>
</date>
<date date-type="rev-recd"><day>2</day>
<month>10</month>
<year>2005</year>
</date>
<date date-type="accepted"><day>26</day>
<month>10</month>
<year>2005</year>
</date>
</history>
<permissions><copyright-statement>©2006 Baishideng Publishing Group Co., Limited. All rights reserved.</copyright-statement>
<copyright-year>2006</copyright-year>
</permissions>
<abstract><p>AIM: To investigate whether Src, JAK2 and phosphatidylinositol 3-kinase (PI3K) pathways are involved in the proliferation of human colonic tumour cells induced by glycine-extended gastrin (G-gly), the precursor of the mature amidated gastrin and to elucidate the molecular interaction between these three kinases in response to this peptide.</p>
<p>METHODS: Using the human colonic tumour cell line HCT116 as a model, we first measured the activation of PI3K, p60-Src and JAK2 in response to G-gly by in vitro kinase assays. Then we investigated the involvement of these kinases in G-gly-induced cell proliferation by MTT test.</p>
<p>RESULTS: G-gly stimulation induced p60-Src, JAK2 and PI3K activation in HCT116. The different pathways were involved in proliferation of human colon cancer cells induced by G-gly. Furthermore, we found that both Src and JAK2 were necessary to PI3K regulation by this peptide. However, we did not find any cross-talk between the two tyrosine kinases.</p>
<p>CONCLUSION: Our results suggest that the p60-Src/PI3K and JAK2/PI3K pathways act independently to mediate G-gly proliferative effect on human colonic tumour cells.</p>
</abstract>
<kwd-group><kwd>Colon cancer</kwd>
<kwd>Src</kwd>
<kwd>JAK2</kwd>
<kwd>Phosphatidylinositol 3-kinase</kwd>
<kwd>Glycine-extended gastrin</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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