Acute exposure of human skin to ultraviolet or infrared radiation or heat stimuli increases mast cell numbers and tryptase expression in human skin in vivo

Summary Background  Mast cells are key effector cells in diverse immunological and pathological processes. It is still unclear why there are more mast cells at peripheral and sun‐exposed skin sites than at sun‐protected sites. Objectives  To investigate changes in mast cell numbers associated with n...

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