Title : Extracellular ATP activates mast cells via a mechanism that is different from the activation induced by the cross-linking of Fc receptors.

Pub. Date : 1996 May 15

PMID : 8621938






1 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 An immunoblot analysis revealed that both ATPo and the cross-linking of FcRs led to tyrosine phosphorylation of 44- and 110-kDa proteins, which thus suggested that these tyrosine-phosphorylated proteins are involved in a modulation of the degranulation process following an elevation of [Ca2+]i. Pretreatment with PMA inhibited the FcR-induced [Ca2+]i increase, while not inhibiting the ATPo-induced one, thus suggesting that ATPo can mobilize [Ca2+]i even when protein kinase C (PKC) has already been activated. Tetradecanoylphorbol Acetate Fc receptor Mus musculus