Please use this identifier to cite or link to this item: https://observatorio.fm.usp.br/handle/OPI/13427
Title: Th17 and regulatory T cells contribute to the in situ immune response in skin lesions of Jorge Lobo's disease
Authors: KANASHIRO-GALO, LucianePAGLIARI, CarlaBARBOZA, Tania CristinaBRITO, Arival Cardoso deXAVIER, Marilia BrasilOLIVEIRA, Clivia Maria Moraes deUNGER, Deborah Aben AtharSOTTO, Mirian NacagamiQUARESMA, Juarez Antonio SimoesDUARTE, Maria Irma Seixas
Citation: MEDICAL MYCOLOGY, v.54, n.1, p.23-28, 2016
Abstract: Jorge Lobo's disease (JLD) is a chronic granulomatous mycosis described in various Latin American countries. The main objective of the present study was to investigate the possible role of Th17 and Foxp3+ Treg cells in the pathogenesis of Jorge Lobo's disease. Human skin biopsies were submitted to an immunohistochemistry protocol to detect Foxp3, interleukin (IL)-1beta, CD25, IL-6, IL-17, and IL-23. The epidermis presented acanthosis, hyperkeratosis, and frequent presence of fungi. The dermis presented inflammatory infiltrate comprising macrophages, lymphocytes, epithelioid and multinucleated cells, and an intense number of fungi. Foxp3+ Treg cells and IL-17+ cells were visualized in lymphocytes in the inflammatory infiltrate. IL-1, IL-2R (CD25), IL-6, and IL-23 were visualized in the dermis, intermingled with fungal cells, permeating or participating of the granuloma. Following IL-17, the most prominent cytokine was IL-6. IL-23 and cells expressing CD25 were present in fewer number. The comparative analysis between IL-17 and Foxp3 demonstrated a statistically significant increased number of IL-17+ cells. Th17 cells play a role in the immune response of JLD. IL-1beta and IL-6 added to the previously described increased number of TGF-beta would stimulate such pattern of response. Th17 cells could be present as an effort to modulate the local immune response; however, high levels of a Th17 profile could overcome the role of Treg cells. The unbalance between Treg/Th17 cells seems to corroborate with the less effective immune response against the fungus.
Appears in Collections:

Artigos e Materiais de Revistas Científicas - FM/MDT
Departamento de Dermatologia - FM/MDT

Artigos e Materiais de Revistas Científicas - FM/MPT
Departamento de Patologia - FM/MPT

Artigos e Materiais de Revistas Científicas - HC/ICHC
Instituto Central - HC/ICHC

Artigos e Materiais de Revistas Científicas - LIM/06
LIM/06 - Laboratório de Imunopatologia da Esquistossomose e outras Parasitoses

Artigos e Materiais de Revistas Científicas - LIM/53
LIM/53 - Laboratório de Micologia


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