ABCA12	ATP-binding cassette subfamily A member 12
AK	Actinic keratosis
CFC	Cutaneous field cancerization
DNA	Deoxyribonucleic acid
ELOVL4	Elongation of very long chain fatty acids protein 4
FA2H	Fatty acid 2-hydroxylase
HMGCoA reductase	3-hydroxy-3-methyl-glutaryl-coenzyme A reductase
mRNA	Messenger RNA
PCNA	Proliferating cell nuclear antigen
PI3K	Phosphoinositide 3-kinase
PIP	p53 immunopositive patch
p53	Tumor suppressor p53
qPCR	Quantitative polymerase chain reaction
SCC	Squamous cell carcinoma
SEM	Standard error of the mean
TEWL	Transepidermal water loss
UV-A light	Ultraviolet A light
UV-B light	Ultraviolet B light
WB	Western blotting