Effect of CV-3988, a specific antagonist against platelet activating factor, on homologous passive cutaneous anaphylaxis in the mouse ear.
Effect of CV-3988, a specific antagonist against platelet activating factor (PAF), on homologous passive cutaneous anaphylaxis (PCA) elicited in the mouse ear was investigated. PAF caused a potent increase in vascular permeability in the mouse ear. The potency was slightly lower than that of serotonin but higher than those of histamine, leukotriene (LT) C4, LTD4, prostaglandin (PG) E1 and PGE2 on a weight basis. The increased vascular permeability caused by PAF was inhibited by CV-3988 in a dose-dependent manner. CV-3988 did not affect the increase in vascular permeability caused by histamine or serotonin. IgG1 antibody-mediated PCA in the mouse ear was inhibited by CV-3988, although it did not affect IgE antibody-mediated PCA. These results suggest a possibility that PAF might be involved in IgG1 antibody-mediated PCA in the mouse.
Inagaki
N
N
Department of Pharmacology, Gifu Pharmaceutical University, Japan.
Miura
T
T
Ohira
K
K
Nagai
H
H
Xu
Q A
QA
Koda
A
A
D000527:Alprostadil / Q000494:pharmacology; D000818:Animals; D000906:Antibodies / Q000276:immunology; D001808:Blood Vessels / Q000187:drug effects / Q000502:physiology; D015232:Dinoprostone / Q000494:pharmacology; D004431:Ear, External / Q000187:drug effects / Q000276:immunology; D005260:Female; D006632:Histamine / Q000494:pharmacology; D007073:Immunoglobulin E / Q000276:immunology; D007074:Immunoglobulin G / Q000276:immunology; D017999:Leukotriene E4; D051379:Mice; D008807:Mice, Inbred BALB C; D010323:Passive Cutaneous Anaphylaxis / Q000187:drug effects* / Q000276:immunology / Q000502:physiology; D010539:Permeability / Q000187:drug effects; D010742:Phospholipid Ethers / Q000494:pharmacology*; D010972:Platelet Activating Factor / Q000037:antagonists & inhibitors* / Q000502:physiology; D013189:SRS-A / Q000031:analogs & derivatives / Q000494:pharmacology; D012701:Serotonin / Q000494:pharmacology; D012867:Skin / Q000187:drug effects / Q000276:immunology
D000906:Antibodies; D007074:Immunoglobulin G; D010742:Phospholipid Ethers; D010972:Platelet Activating Factor; D013189:SRS-A; D012701:Serotonin; D007073:Immunoglobulin E; D017999:Leukotriene E4; D006632:Histamine; C037913:CV 3988; D000527:Alprostadil; D015232:Dinoprostone