title: Mechanisms involved in alpha6beta1-integrin-mediated Ca(2+) signalling.
abstract: Contact of Jurkat T-lymphocytes with the extracellular matrix (ECM) protein laminin resulted in long-lasting alpha6beta1-integrin-mediated Ca(2+) signalling. Both Ca(2+) release from thapsigargin-sensitive Ca(2+) stores and capacitative Ca(2+) entry via Ca(2+) channels sensitive to SKF 96365 constitute important parts of this process. Inhibition of alpha6beta1-integrin-mediated Ca(2+) signalling by (1) the src kinase inhibitor PP2, (2) the PLC inhibitor U73122, and (3) the cyclic adenosine diphosphoribose (cADPR) antagonist 7-deaza-8-Br-cADPR indicate the involvement of src tyrosine kinases and the Ca(2+)-releasing second messengers D-myo-inositol 1,4,5-trisphosphate (InsP3) and cADPR.
authors.affiliation: Institute for Medical Biochemistry and Molecular Biology, Division of Cellular Signal Transduction, University of Hamburg, University Hospital Eppendorf, Martinistr. 52, D-20246, Hamburg, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Schöttelndreier
authors.forename: B V
authors.initials: BV
authors.lastname: Potter
authors.forename: G W
authors.initials: GW
authors.lastname: Mayr
authors.forename: A H
authors.initials: AH
authors.lastname: Guse
mesh_terms: D000246:Adenosine Diphosphate Ribose / Q000031:analogs & derivatives* / Q000037:antagonists & inhibitors / Q000494:pharmacology / Q000502:physiology; D002121:Calcium Channel Blockers / Q000494:pharmacology; D020013:Calcium Signaling / Q000187:drug effects; D036563:Cyclic ADP-Ribose / Q000031:analogs & derivatives; D004305:Dose-Response Relationship, Drug; D004791:Enzyme Inhibitors / Q000494:pharmacology; D004963:Estrenes / Q000494:pharmacology; D006801:Humans; D007093:Imidazoles / Q000494:pharmacology; D039121:Integrin alpha6beta1; D016023:Integrins / Q000502:physiology*; D019169:Jurkat Cells; D007700:Kinetics; D007797:Laminin / Q000494:pharmacology; D011743:Pyrimidines / Q000494:pharmacology; D011760:Pyrrolidinones / Q000494:pharmacology; D013601:T-Lymphocytes / Q000187:drug effects / Q000276:immunology*; D019284:Thapsigargin / Q000494:pharmacology; D010738:Type C Phospholipases / Q000037:antagonists & inhibitors / Q000502:physiology; D019061:src-Family Kinases / Q000037:antagonists & inhibitors / Q000502:physiology
chemical_list: C106570:7-deaza-8-bromo-cyclic ADP-ribose; C412373:AG 1879; D002121:Calcium Channel Blockers; D004791:Enzyme Inhibitors; D004963:Estrenes; D007093:Imidazoles; D039121:Integrin alpha6beta1; D016023:Integrins; D007797:Laminin; D011743:Pyrimidines; D011760:Pyrrolidinones; C060229:1-(6-((3-methoxyestra-1,3,5(10)-trien-17-yl)amino)hexyl)-1H-pyrrole-2,5-dione; D036563:Cyclic ADP-Ribose; D000246:Adenosine Diphosphate Ribose; D019284:Thapsigargin; D019061:src-Family Kinases; D010738:Type C Phospholipases; C063159:1-(2-(3-(4-methoxyphenyl)propoxy)-4-methoxyphenylethyl)-1H-imidazole