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Subject Area

Urology

Article Type

Original Study

Abstract

Objective The objective of this study was to investigate the role of discoidin domain receptors (DDR1) in the pathogenesis of basal-cell carcinoma (BCC) through its immunohistochemical expression and to correlate its expression with clinicopathological parameters. Background BCC is the most common type of nonmelanoma skin cancer. The pathogenesis is usually combined with environmental factors, mainly ultraviolet irradiation through long-term sun exposure. Patients and methods This retrospective case–control study was carried out on 77 patients presented with BCC and 20 age-matched and gender-matched apparently healthy volunteers. Skin biopsies from controls and BCC cases were retrieved from the archives of Pathology Department, Faculty of Medicine, Menoufia University for histopathological and immunohistochemical DDR1 evaluation. Results Cytoplasmic localization of DDR1 could be incriminated in the development and progression of BCC. DDR1 offers potential targeted therapy in cancer, as none of the control groups showed cytoplasmic epithelial localization DDR1, whereas (90.9%) cytoplasmic epithelial localizations were demonstrated in BCC (P < 0.001). A significant difference between BCC and control group regarding DDR1 expression in stroma was noted (P < 0.002). There was also significant association between cytoplasmic localization of DDR1 and head and neck localization and ulcer clinical presentation (P > 0.001 and 0.005, respectively). Conclusion Cytoplasmic localization of DDR1 has a role in the pathogenesis of BCC which can be a new therapeutic target in BCC.

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