NDLI: Pharmacokinetics and Biologic Activity of the Novel Mast Cell Inhibitor, 4-(3′-Hydroxyphenyl)-amino-6,7-dimethoxyquinazoline in Mice

Content Provider	Springer Nature Link
Author	Chen, Chun Lin Malaviya, Ravi Navara, Christopher Chen, Hao Bechard, Brian Mitcheltree, Greg Liu, Xing Ping Uckun, Fatih M.
Copyright Year	1999
Abstract	Purpose. The purpose of the present study was to examine the pharma-codynamic and pharmacokinetic features of the novel mast cell inhibitor 4-(3′-Hydroxyphenyl)-amino-6,7-dimethoxyquinazoline (WHI-P180) in mice. Methods. A high performance liquid chromatography (HPLC)-based quantitative detection method was used to measure plasma WHI-P180 levels in mice. The plasma concentration-time data was fit to a single compartment pharmacokinetic model by using the WinNonlin program to calculate the pharmacokinetic parameters. A cutaneous anaphylaxis model was used to examine the pharmacodynamic effects of WHI-P180 on anaphylaxis-associated vascular hyperpermeability. Results. The elimination half-life of WHI-P180 in CD-1 mice (BALB/ c mice) following i.v., i.p., or p.o. administration was less than 10 min. Systemic clearance of WHI-P180 was 6742 mL/h/kg in CD-1 mice and 8188 mL/h/kg in BALB/c mice. Notably, WHI-P180, when administered in two consecutive nontoxic i.p. bolus doses of 25 mg/kg, inhibited IgE/antigen-induced vascular hyperpermeability in a well-characterized murine model of passive cutaneous anaphylaxis. Conclusions. WHI-P180 is an active inhibitor of IgE-mediated mast cell responses in vitro and in vivo. Further preclinical characterization of WHI-P180 may improve the efficacy of WHI-P180 in vivo and provide the basis for design of effective treatment and prevention programs for mast cell mediated allergic reactions.
Starting Page	117
Ending Page	122
Page Count	6
File Format	PDF
ISSN	07248741
Journal	Pharmaceutical Research
Volume Number	16
Issue Number	1
e-ISSN	1573904X
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1999-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pharmacology/Toxicology Pharmacy Biochemistry Medical Law Biomedical Engineering
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Pharmacology Molecular Medicine Pharmacology (medical) Biotechnology Pharmaceutical Science

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