3′-UTR	three prime untranslated region
3D-MHE model	three-dimensional tissue culture model of human epidermis
ACTH	adrenocorticotrophic hormone
AKT	protein kinase B
bFGF	basic fibroblast growth factor
bHLH-ZIP	basic helix-loop-helix leucine zipper
cAMP	cyclic adenosine monophosphate
CDK2	cyclin-dependent kinase 2
CREB	cAMP-responsive element binding protein
DAG	diacyglycerol
DCT	dopachrome tautomerase
ERK1/2	extracellular regulated protein kinases1/2
ETRB	endothelin type B receptor
Fscn1	fascin1
FZD	frizzled receptor
GPCRs	G protein-coupled receptors
GSK3β	glycogen synthase kinase 3β
HGF	hepatocyte growth factor
IGF-1R	insulin-like growth factor receptor I
IL-6	interleukin-6
IP3	inositol triphosphate
KGF	keratinocyte growth factor
L-DOPA	dihydroxyphenylalanine
LED	light emitting diode
LEF-1	lymphoid enhancer-binding factor 1
LEF-TCF	lymphoid enhancing factor-1/T-cell factor
lncRNA	long non-coding RNAs
MAPK	mitogen-activated protein kinase
MC1R	melanocortin 1 receptor
MEK1	mitogen-activated protein kinase 1
miRNAs	microRNAs
MITF	microphthalmia-associated transcription factor
MLPH	melanophilin
MYO5A	myosin VA
NHEK	normal human epidermal keratinocytes
NHEM	normal human epidermal melanocytes
NO	nitric oxide
OTC	skin organotypic culture
PAX3	paired box family of transcription box 3
PGE2	prostaglandin E2
PI3K	phosphoinositide-3 kinase
Pig-1	immortalized human epidermal melanocytes
PIP2	phosphatidylinositol 4,5-bisphosphate
PKA	protein kinase A
PLCγ	activated phospholipase Cγ
POMC	proopiomelanocortin
RISC	RNA-Induced Silencing Complex
RNA	ribonucleic acid
ROS	reactive oxygen species
RSK	ribosomal S6 kinase
SCF	stem cell factor
SH3BP4	SRC homology 3 domain-binding protein 4
SOX	sex-determining region Y-box
SOX1	sex determining region Y-box 1
SOX10	sex determining region Y-box 10
SOX5	sex determining region Y-box 5
SOX6	sex determining region Y-box 6
SOX9	sex determining region Y-box
STAT3	signal transducer and activator of transcription 3
STTMs	short tandem target mimic
TAK1	TGF-β-activated kinase 1
TGF-β	transforming growth factor-β
TYR	tyrosinase
TYRP-1	tyrosinase-related protein 1
TYRP-2	tyrosinase-related protein 2
UV	ultraviolet
UVA	ultraviolet A
UVB	ultraviolet B
WNT3A	Wnt family member 3A
α-MSH	α-melanocyte stimulating hormone