Target intelligence / Profile preview

Mast Cell Histamine Release (MCHR)

Target
MCHR
Molecular classification
Cellular process, Immune response
01

Overview

Mast cell histamine release is the process by which mast cells release histamine, a potent mediator of inflammation, in response to various stimuli. This release is a central event in allergic reactions and other immune responses, leading to vasodilation, increased vascular permeability, and other inflammatory effects.

Other names
Mast cell degranulationHistamine secretion from mast cells
02

Mechanism of action

Calcium-dependent exocytosis of histamine-containing granules in response to various stimuli, including IgE crosslinking, complement activation, and direct chemical stimulation.

03

Biological functions

InflammationImmune responseVasodilationIncreased vascular permeability
04

Disease associations

Allergic diseasesUrticariaAnaphylaxisAsthmaRhinitisConjunctivitisMast Cell Activation Syndrome (MCAS)
05

Safety considerations

Systemic vasodilationHypotensionBronchoconstrictionIncreased vascular permeability leading to edema
06

Interacting drugs

Morphine

3 more in the full profile.

07

Biomarkers

Serum tryptaseUrinary N-methylhistaminePlasma histamine

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