Pranlukast

Pranlukast inhibits NF-kappa B activation in 1.3% DMSO-differentiated U-937 and Jurkat cells by about 40% & 30%, respectively. Pranlukast and MK-571 inhibit NF-kappa B activation in 1.3% DMSO-differentiated U-937 and Jurkat cells in a dose-related manner. Pranlukast and MK-571 inhibits LPS-induced IL-6 production in PBMC by about 65% and 15%, respectively. ^[1] Pranlukast or zafirlukast significantly inhibits 10 mM LTD4-evoked 35SO4 output in a concentration-dependent fashion, with maximal inhibitions of 83% at 10 mM Pranlukast and 78% at 10 mM Zafirlukast, and IC50 values of 0.3 mM for Pranlukast and 0.6 mM for Zafirlukast. Pranlukast (0.5 microM) causes a parallel rightward shift of the LTD4 concentration-response curve with a pKB of 7. Pranlukast or Zafirlukast (5 microM each) significantly suppresses ovalbumin-induced secretion in tracheae from sensitized guinea-pigs by 70% and 65%, respectively. ^[2] Pranlukast also inhibits NF-kappaB activation induced by phorbol 12-myristate 13-acetate (PMA). Pranlukast also significantly inhibits LPS-induced MUC2 mRNA expression by reverse transcription-polymerase chain reaction (RT-PCR) analysis in NCI-H292 cells. Pranlukast also inhibits LPS-induced MUC2 gene expression in HM3-MUC2 cells. ^[3]

Pranlukast significantly reduces lesion volume, and increases neuron densities in the cortex and hippocampal CA1 region in the ischemic hemispheres of mice. Pranlukast also remarkably reduces the thickness of a scar wall in the ischemic hemispheres of mice. ^[4]