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Master's Dissertation
DOI
10.11606/D.42.2012.tde-30012013-092920
Document
Author
Full name
Jussara Gonçalves Fernandes
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Franco, Marcelo de (President)
Negro, Sonia Jancar
Oliveira, Silvio Luis de
Title in Portuguese
Análise comparativa dos processos inflamatórios agudo e crônico no tecido subcutâneo e exsudato em camundongos selecionados para máxima ou mínima inflamação.
Keywords in Portuguese
Camundongos
Citocinas
Expressão gênica
Fenótipos
Genes
Inflamação
Abstract in Portuguese
Linhagens de camundongos AIRmax e AIRmin diferem quanto a reatividade inflamatória aguda às partículas de Biogel. A AIR divergente nessas linhagens está bem estabelecida, no entanto, diferenças na resposta inflamatória crônica ao Biogel ainda não foram descritas. Assim, nós decidimos verificar se o processo de seleção que modificou a resposta inflamatória aguda nessas linhagens, também afetou o desenvolvimento da resposta inflamatória crônica. A infiltração de células no exsudado da linhagem AIRmax foi maior que na linhagem AIRmin em ambos os períodos avaliados (48h e 30d), e no período de 48 horas, os animais AIRmax apresentaram alta produção de citocinas no exsudato inflamatório. Essa linhagem mostrou ainda maior número de genes ativados envolvidos na transdução de sinal, resposta imune e inflamatória. Alguns genes envolvidos com a resposta inflamatória aguda, também apresentaram diferenças após 30 dias. Esses resultados indicam que o processo de seleção para a inflamação aguda pode ter afetado também o desenvolvimento da resposta inflamatória crônica ao Biogel.
Title in English
Comparative analysis of acute and chronic inflammatory processes of the subcutaneous tissue and exudate in mice genetically selected for maximal or minimal inflammation.
Keywords in English
Cytokines
Gene expression
Genes
Inflammation
Mice
Phenotypes
Abstract in English
AIRmax and AIRmin mouse lines differ in terms of acute inflammatory response after Biogel injection. The distinct AIR in these lines is well established, however, differences in late or chronic inflammatory response to Biogel were not described yet. Thus, we decided to check if the genetic selection that modified the acute inflammatory response in these lines, also affected the development of a chronic inflammatory response. We found that AIRmax mice had higher cellular influx in the inflammatory exudate than AIRmin mice in both analyzed periods (48h and 30d) and that after 48 hours of Biogel injection, AIRmax mice showed higher cytokine levels in inflammatory exudates. This line also showed higher number of up regulated genes in AIRmax than in AIRmin mice involved with inflammatory response, immune response and signal transduction. Some acute inflammatory response genes also showed differences on day 30. Our results indicate that the genetic selection for acute inflammatory response may also have affected the chronic inflammatory response to Biogel.
 
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Publishing Date
2013-03-21
 
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