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- _5 label "Selventa" provenance.
- large_corpus.bel rights "Copyright (c) 2011-2012, Selventa. All rights reserved." provenance.
- _4 value "We investigated adenosine (Ado) activation of the cystic fibrosis transmembrane conductance regulator (CFTR) in vitro and in vivo. A(2B) Ado receptors were identified in Calu-3, IB-3-1, COS-7, and primary human airway cells. Ado elevated cAMP in Calu-3, IB-3-1, and COS-7 cells and activated protein kinase A-dependent halide efflux in Calu-3 cells. Ado promoted arachidonic acid release from Calu-3 cells, and phospholipase A(2) (PLA(2)) inhibition blocked Ado-activated halide efflux in Calu-3 and COS-7 cells expressing CFTR. Forskolin- and beta(2)-adrenergic receptor-stimulated efflux were not affected by the same treatment. Cytoplasmic PLA(2) (cPLA(2)) was identified in Calu-3, IB-3-1, and COS-7 cells, but cPLA(2) inhibition did not affect Ado-stimulated cAMP concentrations. In cftr(+) and cftr(-/-) mice, Ado stimulated nasal Cl(-) secretion that was CFTR dependent and sensitive to A(2) receptor and PLA(2) blockade. In COS-7 cells transiently expressing DeltaF508 CFTR, Ado activated halide efflux. Ado also activated G551D CFTR-dependent halide efflux when combined with arachidonic acid and phosphodiesterase inhibition. In conclusion, PLA(2) and protein kinase A both contribute to A(2) receptor activation of CFTR, and components of this signaling pathway can augment wild-type and mutant CFTR activity." provenance.
- _4 wasQuotedFrom 11741811 provenance.
- assertion hadPrimarySource 11741811 provenance.
- large_corpus.bel title "BEL Framework Large Corpus Document" provenance.
- large_corpus.bel description "Approximately 61,000 statements." provenance.
- assertion wasDerivedFrom large_corpus.bel provenance.
- assertion wasDerivedFrom _4 provenance.
- large_corpus.bel authoredBy _5 provenance.
- large_corpus.bel version "20131211" provenance.