Immunohistochemical localization of activated and mature CD83+ dendritic cells in granulomas of sporotrichosis

T. Koga, H. Duan, K. Urabe, M. Furue

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13 Citations (Scopus)

Abstract

Dendritic cells (DC) are considered to be the most potent antigen-presenting cells (APC) and CD83 is expressed at a high level on immune-competent, activated and mature DC. In order to obtain insight into the immune response in sporotrichosis, we searched immunohistochemically for CD83+ DC in the granulomatous skin lesions of patients. A small but significant subpopulation of CD83+ DC (approximately 0.2 to 0.8% of inflammatory cells) was found. The most common distribution pattern of CD83+ DC was as clusters with mononuclear lymphoid cells within the granulomas. In addition, CD83+ DC were occasionally scattered around the granulomas. High-intensity staining of CD83 antigens was detected not only on the surface, but also in the cytoplasm of DC. No CD83+ DC were observed in the epidermis. A considerable amount of CD1a+ cells were detected in the epidermis, papillary dermis and around the granulomas, but CD1a+ cells were rarely found within the granulomas. There were large numbers of CD68+ monocytes and macrophages in the granulomas. These results indicate that activated and mature DC may play a role in the immune response to sporotrichosis.

Original languageEnglish
Pages (from-to)527-529
Number of pages3
JournalEuropean Journal of Dermatology
Volume11
Issue number6
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Dermatology

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