SDC1 and oral cavity squamous cell carcinoma: Clinical correlation of SDC1 expression with disease status specifically refers to its modulation in epithelial neoplastic cells [41-47] and tumour stroma [48], while the PG has been proposed to influence migration and invasion of oral squamous cell carcinoma cells in vitro by interacting with the β1 integrin subunit and the laminin β1 chain [48].