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. 1992 Jan;33(1):117–120. doi: 10.1111/j.1365-2125.1992.tb04011.x

Endothelin-1 induces a histamine-dependent flare in vivo, but does not activate human skin mast cells in vitro.

S D Brain 1, G Thomas 1, D C Crossman 1, R Fuller 1, M K Church 1
PMCID: PMC1381210  PMID: 1540483

Abstract

The role of the mast cell in endothelin-1 induced flare has been investigated by in vivo and in vitro experiments. The intradermal injection of endothelin-1 (10 pmol) into human skin induced a pallor with surrounding axon-reflex flare which is similar to the flare response to histamine (1 nmol). At these doses, chosen to give identical flare areas, blood flow was increased in the area of the endothelin-induced flare over a longer period. A systemic H1-receptor antagonist significantly inhibited the area of both flares, although blood flow in the remaining portion of the endothelin-induced flare remained raised. Endothelin-1 at concentrations up to 3 x 10(-5) M failed to release histamine from human dispersed skin mast cells. We suggest from these results that a major component of endothelin-1 induced flare results from mast cell activation that is secondary to direct stimulation of sensory nerves by the peptide.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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