TLR1 and oral cavity squamous cell carcinoma: The present study analyzed the staining intensity and immunolocalization of TLR1-10 and NF-κB in the different epithelial layers, basement membrane (BM) zone, endothelium, and infiltrative zone of oral squamous cell carcinoma (OSCC) tissue sections and results were compared with the staining intensity in healthy oral mucosa from control patients.