Title : Calcium signaling and protein kinase C for TNF-alpha secretion in a rat mast cell line.

Pub. Date : 1998

PMID : 9585152






5 Functional Relationships(s)
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1 We compared the effects of azelastine, an anti-allergic drug, on TNF-alpha secretion, on Ca2+ signal, and on degranulation in an antigen- or ionomycin-stimulated rat mast RBL-2H3 cell line. azelastine tumor necrosis factor Rattus norvegicus
2 Azelastine inhibited TNF-alpha release at concentrations lower than those needed for the inhibition of degranulation. azelastine tumor necrosis factor Rattus norvegicus
3 In antigen-stimulated cells, azelastine also inhibited equipotently TNF-alpha mRNA expression/protein synthesis, TNF-alpha release and Ca2+ influx. azelastine tumor necrosis factor Rattus norvegicus
4 In antigen-stimulated cells, azelastine also inhibited equipotently TNF-alpha mRNA expression/protein synthesis, TNF-alpha release and Ca2+ influx. azelastine tumor necrosis factor Rattus norvegicus
5 In ionomycin-stimulated cells, however, azelastine inhibited TNF-alpha release to a greater extent than TNF-alpha mRNA expression/protein synthesis and Ca2+ influx, indicating that azelastine inhibits the release process more potently than transcription or production of TNF-alpha by interfering with a signal other than Ca2+. azelastine tumor necrosis factor Rattus norvegicus