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| Flores-Batista,V.C.S.; Boechat,N.; Lago,P.M.; Lazzarini,L.C.; Pessanha,L.R.; Almeida,A.S.; Mafort,T.T.; Kritski,A.L.; Ho,J.L.; Lapa-e-Silva,J.R.. |
| Costimulatory and antigen-presenting molecules are essential to the initiation of T cell immunity to mycobacteria. The present study analyzed by immunocytochemistry, using monoclonal antibodies and alkaline phosphatase-anti-alkaline phosphatase method, the frequency of costimulatory (CD86, CD40, CD40L, CD28, and CD152) and antigen-presenting (MHC class II and CD1) molecules expression on human lung cells recovered by sputum induction from tuberculosis (TB) patients (N = 22) and non-TB controls (N = 17). TB cases showed a statistically significant lower percentage of HLA-DR+ cells than control subjects (21.9 ± 4.2 vs 50.0 ± 7.2%, P < 0.001), even though similar proportions of TB cases (18/22) and control subjects (16/17, P = 0.36) had... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tuberculosis; Costimulatory molecules; CD86; MHC class II; HLA-DR. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001200011 |
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