作者: Juliane Oliveira Gomes , Marianne de Vasconcelos Carvalho , Felipe Paiva Fonseca , Rogério Oliveira Gondak , Márcio Ajudarte Lopes
DOI: 10.1111/JOP.12389
关键词:
摘要: Background Actinic cheilitis (AC) is a potentially malignant lesion diagnosed in the lip of patients chronically exposed to sun that may give rise fully invasive lower squamous cell carcinoma (LLSCC). It known ultraviolet radiation causes dendritic cells (DCs) depletion epidermis, but role this cellular population cancer progression remains uncertain. Therefore, study investigated distribution DCs normal, dysplastic and neoplastic tissues lip. Methods Thirteen cases mucocele, 42 ACs 21 LLSCC were retrieved original diagnoses confirmed by two oral pathologists, who further classified as low- high-risk lesions. Immunoreactions against CD1a CD83 identified immature mature DCs, respectively. Results Immature CD1a+ Langerhans (LCs) significantly decreased when compared morphologically normal (P 0.05), demonstrated concentration LCs than epithelium 0.05). Conclusion These results suggest epithelial LCs, not IDCs connective tissue, would represent an important step for development.