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Drug Des Devel Ther ; 15: 2641-2651, 2021.
Article in English | MEDLINE | ID: mdl-34188444

ABSTRACT

BACKGROUND: Curcumol exhibits anti-inflammatory effect, but its effect on chronic asthma lacked research. Therefore, this study explored the role of curcumol in asthma. METHODS: A chronic asthmatic mice model was established by ovalbumin induction. After treatment with curcumol, airway resistance in mice was detected by forced oscillation technique. The histopathological features of airway tissues, pulmonary inflammation, and inflammation cell recruitment in the bronchoalveolar lavage fluid (BALF) of mice were detected by hematoxylin-eosin staining. Collagen deposition in the airways of mice was examined by Masson staining. The secretion of ovalbumin-IgE, IL-4, IL-5, IL-13 in mouse serum and VEGFA secretion in BALF were analyzed by ELISA. Finally, the expressions of ß-catenin, Wnt5a, VEGFA, TGF-ß1, Fibronectin, and MMP-9 in mice lung tissues were determined by Western blot or immunohistochemical. RESULTS: Curcumol attenuated airway hyperresponsiveness, airway remodeling, and pulmonary inflammation in chronic asthmatic mice. Curcumol relieved collagen deposition in airway tissues, inflammation cell recruitment in BALF, and reduced the up-regulation of serum ovalbumin-IgE, IL-4, IL-5, and IL-13 and BALF VEGFA in chronic asthmatic mice. In addition, curcumol attenuated the up-regulated expressions of ß-catenin, Wnt5a, VEGFA, TGF-ß1, Fibronectin, and MMP-9 in the lung tissues of chronic asthmatic mice, but curcumol treatment did not show such effects on healthy mice. CONCLUSION: Our findings revealed that curcumol could ameliorate lung inflammation and airway remodeling by inhibiting the abnormal activation of the Wnt/ß-catenin pathway in chronic asthmatic mice, indicating that curcumol could be used as a novel anti-asthma drug for basic and clinical research.


Subject(s)
Airway Remodeling/drug effects , Asthma/drug therapy , Pneumonia/drug therapy , Sesquiterpenes/pharmacology , Animals , Anti-Asthmatic Agents/pharmacology , Anti-Inflammatory Agents/pharmacology , Asthma/physiopathology , Bronchoalveolar Lavage Fluid , Disease Models, Animal , Female , Mice , Mice, Inbred BALB C , Ovalbumin , Pneumonia/pathology , Wnt Signaling Pathway/drug effects
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