Linked Life Data

12732341

Source:http://linkedlifedata.com/resource/pubmed/id/12732341

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SubjectPredicateObjectContext
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pubmed-article:12732341pubmed:dateCreated2003-5-6lld:pubmed
pubmed-article:12732341pubmed:abstractTextVasoactive intestinal peptide (VIP) and pituitary adenylate cyclase-activating polypeptide (PACAP) are important neuropeptides in the control of lung physiology. Both of these commonly bind to specific G protein coupled receptors named VPAC(1)-R and VPAC(2)-R, and PAC(1)-R (with higher affinity for PACAP). VIP and PACAP have been implicated in the control of cell proliferation and tumor growth. This study examined the presence of VIP and PACAP receptors in human lung cancer samples, as well as the functionality of adenylyl cyclase (AC) stimulated by both peptides. Results from RT-PCR and immunoblot experiments showed the expression of VPAC(1)-, VPAC(2)- and PAC(1)-R in lung cancer samples. Immunohistochemical studies showed the expression of VPAC(1) and VPAC(2) receptors. These receptors were positively coupled to AC, but the enzyme activity was impaired as compared to normal lung. There were no changes in Galpha(s) or Galpha(i) levels. Present results contribute to a better knowledge of VIP/PACAP actions in lung cancer and support the interest for the development of VIP/PACAP analogues with therapeutic roles.lld:pubmed
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pubmed-article:12732341pubmed:volume24lld:pubmed
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pubmed-article:12732341pubmed:pagination429-36lld:pubmed
pubmed-article:12732341pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:12732341pubmed:year2003lld:pubmed
pubmed-article:12732341pubmed:articleTitleVIP and PACAP receptors coupled to adenylyl cyclase in human lung cancer: a study in biopsy specimens.lld:pubmed
pubmed-article:12732341pubmed:affiliationDepartment of Biochemistry and Molecular Biology, University of Alcalá, E-28871 Alcalá de Henares, Spain.lld:pubmed
pubmed-article:12732341pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:12732341pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
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