Expression and function of histamine and its receptors in atopic dermatitis

Molecular and Cellular Pediatrics

Table 2 Expression of HRs in resident and nonresident cells of the skin

Cell type	Histamine receptor expression
Mast cells	H1R [10], H4R [116, 117]
Eosinophils	H1R [10], H2R, H3R [32, 91, 118, 119] H4R [120, 121]
Basophils	H4R [116, 117]
Neutrophils	H1R [10], H2R [122, 123], H4R [116, 117]
Dendritic cells	H1R [34], H2R [34], H3R [32, 19, 118, 119], H4R [33]
Langerhans cells	H4R [35]
Monocytes/macrophages	H1R [10], H2R [122, 123], H3R [32, 91, 118, 119], H4R [8]
T cells	H1R [10], H2R [122, 123], H4R [100, 117, 124]
B cells	H1R [10], H2R [122, 123]
Keratinocytes	H1R [10], H2R [71]
Endothelial cells	H1R [10], H2R [122, 123], H1R–H4R [74]
Smooth muscle cells	H1R [10], H2R [122, 123]
Fibroblasts	H1R [82]
Neurons	H1R [10], H2R [122, 123], H3R [32, 91, 118, 119]