A previous study reported that 1-α,25-dihydroxyvitamin D3 (1α,25(OH)2D3) inhibits HBp17/FGFBP-1 expression in SCC and oral squamous cell carcinoma (OSCC) cell lines via the nuclear factor-kappa B (NF-κB) signaling pathway [13,14]. This evidence concerns the gene FGFBP1 and oral cavity squamous cell carcinoma.