Inhibition of neutrophil chemotaxis in methotrexate-treated rheumatoid arthritis patients

Abstract
Polymorphonuclear cell (PMN) chemotaxis was assessed using the in vitro under agarose assay in ten rheumatoid arthritis patients prior to and following a single 10-mg dose of methotrexate (MTX). PMNs obtained from patients after MTX showed a decreased chemotactic migration response to both zymosan activated serum (PPP<0.99).