AD	atopic dermatitis
CCL	C-C Motif Chemokine Ligand (CCL) CGRP- calcitonin gene-related peptide
DDP IV	dipeptidyl peptidase IV
GDNF	glial cell line-derived neurotrophic factor
GM-CSF	granulocyte-macrophage colony-stimulating factor
GPCRs	G protein-coupled receptors
H1R	histamine-1 receptor
HDC	histidine decarboxylase
IL-1β	interleukin-1β
IL-4	interleukin-4
IL-8	interleukin-8
IL-12	interleukin-12
IL-13Rα2	interleukin 13 receptor alpha 2
IL-17	interleukin-17
IL-19	interleukin-19
IL-20	interleukin-20
IL-23	interleukin-13
IL-26	interleukin-26
IL-31	interleukin-31
IL36A	interleukin-36 alpha
IL36G	interleukin-36 gamma
ISS	itch severity scale
JAK	the Janus kinases
LTA	lipoteichoic acid
NB-UVB	narrow-band ultraviolet radiation
NK1R	neurokinin 1 receptor
OPRK	κ-opioid receptor
OPRM	μ-opioid receptor
PAR-2	protease-activated receptor 2
pDC	plasmacytoid dendritic cells
P-NRS	Pruritus–Numerical Rating Scale
PSO	psoriasis
S. aureus	Staphylococcus aureus
SP	substance P
TACR-1	tachykinin receptor 1
Th1	T helper cell type 1
Th17	T helper cell type 17
TNF-α	tumor necrosis factor alpha
TLR2	Toll-like receptor 2
TRP	transient receptor potential
TRPV-1	TRP vanilloid 1
TSLP	thymic stromal lymphopoietin
MRGPR	Mas-related G-protein coupled receptors
VAS	Visual Analogue Scale