Abstract
The aim of this work was to analyze the effect of methotrexate (MTX) upon leukocyte migration and expression of adhesion molecules CD11a/CD18 in the lung, 4 and 48 h after inflammation induction by carrageenan in mice. The results showed that MTX significantly decreased leukocyte influx and CD11a expression in the lung at 4 and 48 h of pleurisy (P < 0.01). MTX also inhibited CD18 expression at 4 h but not 48 h of pleurisy (P < 0.01). These results proved that MTX at the studied doses had important anti-inflammatory properties, acting primarily on leukocyte migration from the pleural cavity to the lung via inhibition of CD11a/CD18 expression in the mouse model of inflammation.
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