Immunohistochemical analysis of S100-positive epidermal Langerhans cells in dermatofibrom
An. bras. dermatol
; 95(5): 627-630, Sept.-Oct. 2020. graf
Artigo
em Inglês
| LILACS, Coleciona SUS
| ID: biblio-1130934
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract Dermatofibroma is a dermal fibrohistiocytic neoplasm. The Langerhans cells are the immunocompetent cells of the epidermis, and they represent the first defense barrier of the immune system towards the environment. The objective was to immunohistologically compare the densities of S100-positive Langerhans cells in the healthy peritumoral epidermis against those in the epidermis overlying dermatofibroma (20 cases), using antibodies against the S100 molecule (the immunophenotypic hallmark of Langerhans cells). The control group (normal, healthy skin) included ten healthy age and sex-matched individuals who underwent skin biopsies for benign skin lesions. A significantly high density of Langerhans cells was observed both in the epidermis of the healthy skin (6.00 ± 0.29) and the peritumoral epidermis (6.44 ± 0.41) vs. those in the epidermis overlying the tumor (1.44 ± 0.33, p < 0.05). The quantitative deficit of Langerhans cells in the epidermis overlying dermatofibroma may be a possible factor in its development.
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Brasil
Base de dados:
LILACS
/
Coleciona SUS
Assunto principal:
Neoplasias Cutâneas
/
Histiocitoma Fibroso Benigno
Limite:
Humanos
Idioma:
Inglês
Revista:
An. bras. dermatol
Ano de publicação:
2020
Tipo de documento:
Artigo
Instituição/País de afiliação:
Assuit University Hospital/EG