AD	atopic dermatitis
AhR	aryl hydrocarbon receptor
AhRR	aryl hydrocarbon receptor repressor
Akt	protein kinase B
AMPK	AMP-activated protein kinase
ARNT	aryl hydrocarbon receptor nuclear translocator
ATP	adenosine triphosphate
BaP	benzo[a]pyrene
cAMP	3′5′-cyclic adenosine monophosphate
CCL17	chemokine (C-C motif) ligand 17
CCL22	chemokine (C-C motif) ligand 22
CDK	cyclin-dependent kinase
DC	dendritic cell
DMBA	7,12-dimethylbenz[a]anthracene
EDC	epidermal differentiation complex
EGFR	epidermal growth factor receptor
ER	estrogen receptor
ERK	extracellular signal-regulated kinase
FICZ	6-formylindolo[3,2-b]carbazole
FLG	Filaggrin
HIF	hypoxia-induced factor
HNSC	head and neck squamous cell carcinoma
HMOX1	heme oxygenase 1
HSP	heat shock protein
IaId	indole-3-aldehyde
IDO	indoleamine 2,3-dioxygenase
IFN-γ	interferon gamma
ITE	2-(1H-Indol-3-ylcarbonyl)-4-thiazolecarboxylic acid methyl ester
KAT	kynurenine aminotransferases
KLF6	Kruppel-like factor 6
KYNA	kynurenic acid
KYNU	kynureninase
LC	Langerhans cell
LOR	Loricrin
LPR6	LDL receptor related protein 6
MAPK	mitogen-activated protein kinase
MITF	microphtalmia-associated transcription factor
Msrebp-1	mature sterol-binding protein
NAD	nicotinamide adenine dinucleotide
NF-κB	nuclear factor kappa-light-chain-enhancer of activated B cells
NQO1	NAD(P)H quinone dehydrogenase 1
Nrf2	nuclear factor-erythroid 2-related factor-2
PAH	polycyclic aromatic hydrocarbons
PBMC	peripheral blood mononuclear cell
PCB	polychlorinated biphenyls
PCDD	polychlorinated dibenzo-p-dioxins
PCDF	polychlorinated dibenzofurans
PI3K	phosphoinositide 3-kinase
PKA	protein kinase A
PKC	protein kinase C
PPAR-δ	peroxisome proliferator-activated receptor-δ
PTD	photodynamic therapy
Rb	retinoblastoma protein
ROS	reactive oxygen species
SCC	squamous cell carcinoma
siRNA	small interfering RNA
SKCN	skin cutaneous melanoma
SOS1	son of sevenless 1
STAT	signal transducer and activator of transcription
TCDD	2,3,7,8-tetrachlorodibenzo-p-dioxin
TDO	tryptophan 2,3-dioxygenase
TGF-β	transforming growth factor beta
TNF-α	tumor necrosis factor alpha
Treg	T regulatory cell
TRP	tryptophan
TSLP	thymic stromal lymphopoietin
TYR	tyrosinase
TYRP	tyrosinase-related protein
VEGF	vascular endothelial growth factor
XAP2	the hepatitis B virus X-associated protein 2
XRE	xenobiotic-responsive element