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Master's Dissertation
DOI
https://doi.org/10.11606/D.42.2012.tde-21092012-085336
Document
Author
Full name
Mariana Kolos Galuppo
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Carboni, Beatriz Simonsen Stolf (President)
Mestriner, Clara Lúcia Barbieri
Véliz, Mauro Javier Cortez
Title in Portuguese
Análise da atividade de CD100 na modulação da ativação de macrófagos e sua infectividade por Leishmania (Leishmania) amazonensis.
Keywords in Portuguese
Leishmania amazonensis
Leishmania
Leishmaniose cutânea
Imunologia
Macrófagos
Modulação de ativação de macrófagos
Abstract in Portuguese
Considerando a importância do perfil do macrófago na infecção por Leishmania e o potencial papel de CD100 na modulação da ativação do mj, postulamos que essa molécula pode afetar a infectividade dessa célula por este parasita. Portanto, analisou-se e comparou-se a expressão de CD100 em diferentes tipos de mj (BALB/c e C57BL/6) e seus efeitos em termos de ativação e infecção com L. amazonensis. Avaliamos a expressão de CD100 e observamos que mjs peritoneais de BALB/c expressam mais CD100 do que os de C57BL/6 e que esta expressão diminui ao longo da infecção. Mj de BALB/c pré-tratados com sCD100 antes da infecção tem maior índice no tempo de 4h e quando em contato com o sCD100 antes, durante e após a infecção, o índice aumenta em 4 e 24h. Em mj de C57BL/6 pré-tratados com sCD100 ou no período de infecção, o índice aumenta em 4h. Quando permanecem durante todo o tempo em contato com o sCD100 o índice aumenta nos períodos de 4 e 24h. Concluímos que o CD100 pode estar relacionado com a modulação da infecção, e que a infecção afeta a expressão dessa molécula pelo mj.
Title in English
Analysis of CD100 modulation of macrophage activation and infectivity by Leishmania (Leishmania) amazonensis.
Keywords in English
Leishmania (Leishmania) amazonensis
Leishmania
Leishmaniose cutânea
Immunology
Macrophages
Modulation of macrophage activation
Abstract in English
Considering the importance of mj in Leishmania´s infection and the potential role of CD100 in the modulation of mj activation, we postulated that this molecule may affect mj infectivity. Therefore, we analyzed and compared the expression of CD100 on different types of mj (BALB/c and C57BL/6) and their effects in terms of mj activation and infectivity by L. amazonensis. We analyzed the expression of CD100 and the results suggest that mj from BALB/c express more CD100 than C57BL/6 and this expression decrease along the infection. Mj from BALB/c pre-treated with sCD100 have augmented infection rates in 4h and in contact with the sCD100 before, during and after infection, increase rates in periods of 4 and 24h. In mj from C57BL/6 pre-treated with sCD100 or infection period, the rates increase in 4h. When macrophages remained in contact with sCD100 throughout the infection, rates increase after 4 and 24h. We can therefore conclude that CD100 may be related to modulation of Leishmania´s infection and that the infection itself affects CD100 expression in mj.
 
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Publishing Date
2012-10-25
 
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