The invention discloses application of
montelukast in preparation of a
medicine for preventing and treating hepatolenticular degeneration, and belongs to the technical field of biological medicines. According to the application disclosed by the invention, the
montelukast is found to specifically block a cysteinyl
leukotriene (CysLTs)
receptor,
cut off a CysLTs-mediated
inflammation cascade reaction and remarkably inhibit the expression of chemotactic factors (such as CCL2) and subsequent
pathological recruitment of macrophages, so that the liver is protected from secondary
immune inflammation injury induced by
copper toxicity. The discovery proves that
montelukast can be used as a new anti-inflammatory and liver-protecting strategy without
copper expelling dependence, can solve the problem of inflammatory injury which cannot be improved by the existing
copper expelling
medicine, and avoids possible side effects caused by powerful copper expelling. Besides, the montelukast is a marketed
medicine (old medicine) which has been widely and clinically applied for many years, is clear in
pharmacokinetics and high in safety, and has huge clinical transformation potential and application prospect as a medicine for preventing and treating hepatolenticular degeneration.