PMID- 7511869 OWN - NLM STAT- MEDLINE DCOM- 19940505 LR - 20190825 IS - 0065-4299 (Print) IS - 0065-4299 (Linking) VI - 40 IP - 1-2 DP - 1993 Sep TI - Some characteristics of the ATP-induced histamine release from and permeabilization of rat mast cells. PG - 18-27 AB - Extracellular adenosine 5'-triphosphate (ATP) induced a characteristic, dose-dependent release of histamine and prostaglandin D2 (PGD2) from rat peritoneal mast cells. The process was relatively slow, non-cytotoxic, maximal at physiological pH and dependent on external calcium. Strontium and barium ions were able to substitute for calcium, although higher concentrations were required for maximal release. Cells stimulated in the absence of calcium progressively lost the ability to respond to subsequent reintroduction of the cation. The secretion of histamine induced by ATP was largely unaffected by the anti-asthmatic drugs disodium cromoglycate and nedocromil sodium but was inhibited by structurally related flavonoids and by cAMP-active drugs. Importantly, the non-hydrolysable guanosine 5'-triphosphate (GTP) analogue, GTP-gamma-S, elicited a dose-dependent release of histamine when introduced into mast cells permeabilized with ATP in the absence of external calcium. ATP thus appears to be a useful cell permeabilizing tool with which to study the biochemical processes involved in mast cell activation. FAU - Jaffar, Z H AU - Jaffar ZH AD - Department of Chemistry, University College London, UK. FAU - Pearce, F L AU - Pearce FL LA - eng GR - Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Switzerland TA - Agents Actions JT - Agents and actions JID - 0213341 RN - 0 (Chromones) RN - 0 (Metals) RN - 37589-80-3 (Guanosine 5'-O-(3-Thiotriphosphate)) RN - 85166-31-0 (Inositol 1,4,5-Trisphosphate) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - E0399OZS9N (Cyclic AMP) RN - RXY07S6CZ2 (Prostaglandin D2) SB - IM MH - Adenosine Triphosphate/*pharmacology MH - Animals MH - Cell Membrane Permeability/*drug effects MH - Chromones/pharmacology MH - Cyclic AMP/metabolism MH - Guanosine 5'-O-(3-Thiotriphosphate)/pharmacology MH - Histamine Release/*drug effects MH - In Vitro Techniques MH - Inositol 1,4,5-Trisphosphate/pharmacology MH - Mast Cells/drug effects/*metabolism MH - Metals/pharmacology MH - Molecular Weight MH - Peritoneal Cavity/cytology MH - Prostaglandin D2/metabolism MH - Rats MH - Rats, Sprague-Dawley EDAT- 1993/09/01 00:00 MHDA- 1993/09/01 00:01 CRDT- 1993/09/01 00:00 PHST- 1993/09/01 00:00 [pubmed] PHST- 1993/09/01 00:01 [medline] PHST- 1993/09/01 00:00 [entrez] AID - 10.1007/BF01976747 [doi] PST - ppublish SO - Agents Actions. 1993 Sep;40(1-2):18-27. doi: 10.1007/BF01976747.