Leukotriene C(4) biosynthesis in isolated August rat peritoneal leukocytes.

Abstract:

:The mixed leukocyte population obtained from the peritoneum of the August rat is a potentially important experimental model of inherent eosinophilia that has not been well characterized. In the present study, isolated cell preparations generated a concentration-dependent release of leukotriene (LT) C(4) when exposed to the Ca(2+) ionophore A23187, reaching maximal stimulation at 5.0 muM. This response was inhibited by the 5-lipoxygenase activating protein antagonist MK-886 (0.1 muM), nominally Ca(2+) and Mg(2+)-free incubation media and by activation of protein kinase C via phorbol 12-myristate 13-acetate (50 nM). These findings establish a model system for investigating LTC(4) profiles contingent with innate peritoneal eosinophilia and are consistent with the hypothesis that cellular LTC(4) biosynthesis is phosphoregulated.

journal_name

Mediators Inflamm

authors

Huebner JM,Eversole RR,Jackson WF,Mackenzie CD,Stapleton SR,Beuving LJ

doi

10.1155/S0962935196000610

subject

Has Abstract

pub_date

1996-01-01 00:00:00

pages

443-7

issue

6

eissn

0962-9351

issn

1466-1861

journal_volume

5

pub_type

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