Review Article

From Normal Skin to Squamous Cell Carcinoma: A Quest for Novel Biomarkers

Table 3

cSCC biomarkers.

Nr. crt.BiomarkerRoles

()CFH
FHL-1
Complement factor 1
(i) Inhibiting one of the three pathways that activate the complement C3
(ii) Facilitating progression and migration of cSCC cells [6062]

()Serpin A1(i) Coagulation
(ii) Inflammation
(iii) Turnover of extracellular matrix
(iv) Inhibiting natural killer cell activity
(v) Stimulating malignant cell proliferation but not normal skin cell proliferation
(vi) Antiapoptotic effect [63, 64]

()APC(i) Inducing the destruction of β-catenin
(ii) Having a role in microtubule assembly [65]

()Phosphorylated AKT,
mTOR (Ser2448),
4EBP1 (Ser65),
70S6K1 (Thr421),
p70S6K1 (Thr421/Ser424),
S6 (Ser6)
(i) Influencing apoptosis, proliferation, inflammation, and differentiation [55]

()S100A7(i) Role in metastasis [6670]

()Col7A1(i) Encoding the information for Col7 formation [71]

()MMP-7(i) Maintaining homeostasis of many tissues including skin, by proteolysis of extracellular matrix [7274]

()Krt8
Krt18
(i) Together they induce a higher rate of invasiveness in a cell population [75]

()CD133(i) Proliferation
(ii) Differentiation [46, 7681]

()CYFRA 21-1(i) Component of structural proteins involved in epithelial intermediary filaments formation [8288]

()mtDNA(i) Mitochondrial functions [89, 90]

()Hsp70(i) it is presumed that it may help tumorous cells survive apoptosis and necrosis [91]

()Plectin(i) Cytolinker of plakins family which forms the links between filaments [92]

()Cofilin-I(i) Vulvar carcinogenesis
(ii) Tumor progression [93]

()Galectin-7
wee1
(i) Invasiveness
(ii) Poor tumor differentiation [94, 95]

()EphB2(i) Determining proliferation, migration, and invasion [96]