June 9, 2026 · Journal of cutaneous pathology · DOI: 10.1111/cup.70150

Depicting the Immunological Landscape of Basal Cell Carcinoma Subtypes

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The authors aimed to characterize the immunological landscape of different basal cell carcinoma (BCC) subtypes by examining PD-L1, dendritic cells, and HLA expression through immunohistochemistry. Their findings revealed that while PD-L1 was not expressed on BCC tumor cells, it was present on immune cells, particularly in basosquamous BCCs, suggesting that this subtype may be more responsive to anti-PD-1 therapy than others. Overall, the study highlights the immune-privileged status of BCC and challenges existing notions regarding PD-L1 expression in these tumors.

Isabella Dommann, Gaetana Restivo, Isabel Kolm, Federica Sella, Patrick Turko, Phil F Cheng, Mitchell Levesque, Corina Dommann-Scherrer, Reinhard Dummer, Egle Ramelyte

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