Montelukast Sodium

Cell experiment:

Nasal mucosa and polyp epithelial cells are stimulated with fetal bovine serum (FBS) with or without MK for 24 hours, and cytokine concentrations in epithelial secretions are measured by ELISA. After incubating peripheral blood eosinophils with epithelial cell-conditioned media (ECM) with or without montelukast up to 3 days, eosinophil survival is assessed by Trypan blue dye exclusion[1].

Animal experiment:

Rats: Twenty four Sprague Dawley rats are randomLy divided into control group, asthma, and montelukast group. A rat model of asthma is induced by ovalbumin (OVA) inhalation. Normal saline is used instead of sensitizing solution and 1% OVA in the control group. Each rat in the montelukast group is given montelukast (15mg/kg) by gavage 2h before OVA inhalation. All rats are treated for 8 weeks[3]. Mice: Montelukast is dissolved in 0.5% sodium carboxymethyl cellulose (CMC-Na). Mice are randomLy assigned to 4 groups: (1) vehicle plus vehicle,(2) Aβ1-42 plus vehicle, (3) Aβ1-42 plus montelukast (1.0 mg/kg), (4) Aβ1-42 plus montelukast (2.0 mg/kg). The solutions are injected bilaterally into the cerebroventricles through the micropipette[4].

References:

[1]. Mullol J, et al. Montelukast reduces eosinophilic inflammation by inhibiting both epithelial cell cytokine secretion (GM-CSF, IL-6, IL-8) and eosinophil survival. J Biol Regul Homeost Agents. 2010 Oct-Dec;24(4):403-11.
[2]. Zhang HP, et al. Montelukast for prevention and treatment of asthma exacerbations in adults: Systematic review and meta-analysis. Allergy Asthma Proc. 2014 Jul-Aug;35(4):278-87.
[3]. Wei B, et al. Effect of montelukast on the expression of neurokinin-1 receptor in young asthmatic rats with airway remodeling. Zhongguo Dang Dai Er Ke Za Zhi. 2013 Apr;15(4):298-301.
[4]. Lai J, et al. Montelukast targeting the cysteinyl leukotriene receptor 1 ameliorates Aβ1-42-induced memory impairment and neuroinflammatory and apoptotic responses in mice. Neuropharmacology. 2014 Apr;79:707-14.