CLDN7 and ameloblastoma: The effectiveness of tight junction proteins (claudins 1, 4, 5, 7 and occludin) and cancer associated fibroblasts (CAFs) as prognostic markers in OTSCC and as markers of malignancy in ameloblastomas was studied by Bello I et al. Abundance of CAFs and Claudin 7 derangement was found to be associated with poor disease-specific survival in oral (mobile) tongue cancer.