Pseurotin A and its analogues as inhibitors of immunoglobulin E [correction of immunoglobuline E] production.

A natural product, pseurotin A inhibits IgE production in vitro. Wide variety of chemical modification of pseurotin A was performed. Structure-activity relationship studies of pseurotin analogues elucidated that 10-deoxypseurotin A strongly inhibits IgE production with IC(50) of 0.

Effects of salmeterol xinafoate and fluticasone propionate on immunological activation of human cultured mast cells.

Background: The clinical efficacy of combination therapy comprising a long acting beta(2)-agonist (LABA) and corticosteroid is widely recognized for the treatment of adult asthma. Here we examine the effect of salmeterol xinafoate (SX) and fluticasone propionate (FP) alone and in combination on the immunological activation of human cultured mast cells (HCMC)in vitro.

Methods: HCMC were passively sensitized with IgE antibody and then activated by challenging with anti-IgE antibody.

The effect of a newly synthesized indazole compound, TAS-3-124, on experimental autoimmune disease.

The effects of a newly synthesized compound, 6-acetoamido-1-acetyl-1-indazole (TAS-3-124), on autoimmune diseases were studied. We used animal models of collagen-induced arthritis (CIA) in mice and experimental autoimmune encephalomyelitis (EAE) in rats to evaluate the efficacy of TAS-3-124. TAS-3-124 at doses of 100 and 300 mg/kg p.

Effect of MX-68 on airway inflammation and hyperresponsiveness in mice and guinea-pigs.

MX-68 is a newly synthesized antifolate, which is a derivative of methotrexate (MTX). In this paper, the effect of MX-68 on allergic airway responses in mice and guinea-pigs was studied. In the first experiment, antigen-induced airway inflammation and airway hyperresponsiveness (AHR) to acetylcholine in mice were examined and compared with the effects of classical antifolate methotrexate and prednisolone.