Coutts SM, Khandwala A, Shoupe TS, Musser JH, Klunk LJ, Weinryb I. REV 2871 (CHBZ): a novel inhibitor of histamine release.
AGENTS AND ACTIONS 1986;
18:318-24. [PMID:
2428220 DOI:
10.1007/bf01964991]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CHBZ is a novel, non-disodium cromoglycate (DSCG)-like, antiallergic drug in vitro. Whereas DSCG loses antisecretory activity with increasing time of preincubation with rat mast cells (RMC) before antigen challenge, and does not inhibit non-immunologically mediated release from human leukocytes, CHBZ exerts long-lived inhibition of both types of release from both types of cells. CHBZ is taken up by RMC in a saturable and time-dependent manner. It is enzymatically converted inside RMC to a DSCG-like metabolite, REV 3579, which, because of its ionic character, accumulates inside the cell. CHBZ, presumably through the action of the REV 3579 generated intracellularly, may mediate long-lived phosphorylation of the same 78 K protein which is transiently phosphorylated upon exposure of RMC to DSCG.
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