Korean J Physiol Pharmacol.  2019 Jul;23(4):251-261. 10.4196/kjpp.2019.23.4.251.

Magnolol exerts anti-asthmatic effects by regulating Janus kinase-signal transduction and activation of transcription and Notch signaling pathways and modulating Th1/Th2/Th17 cytokines in ovalbumin-sensitized asthmatic mice

Affiliations
  • 1Department of Gerontology, Wujiang Hospital Affiliated to Nantong University, Suzhou, Jiangsu 215505, China. ISwoggerisits@yahoo.com

Abstract

Allergic asthma, is a common chronic inflammatory disease of the airway presenting with airway hyperresponsiveness and airway remodelling. T helper cells-derived cytokines are critically associated with asthma pathogenesis. Janus kinase-signal transduction and activation of transcription (JAK/STAT) signaling is found to be involved in asthma. Magnolol is a plant-derived bioactive compound with several pharmacological effects. The study aimed to assess the effects of magnolol in ovalbumin (OVA)-induced asthmatic model. BALB/c mice were sensitized and challenged with OVA. Magnolol (12.5, 25, or 50 mg/kg body weight) was administered to separate groups of animals. Dexamethasone was used as the positive control. Cellular infiltration into the bronchoalveolar lavage fluid (BALF) were reduced on magnolol treatment. The levels of Th2 and Th17 cytokines were reduced with noticeably raised levels of interferon gamma. Lung function was improved effectively along with restoration of bronchial tissue architecture. OVA-specific immunoglobulin E levels in serum and BALF were decreased by magnolol. Magnolol reduced Th17 cell population and effectively modulated the JAK-STAT and Notch 1 signaling. The results suggest the promising use of magnolol in therapy for allergic asthma.

Keyword

Asthma; Cytokines; JAK-STAT pathway; Magnolol

MeSH Terms

Airway Remodeling
Animals
Asthma
Bronchoalveolar Lavage Fluid
Cytokines*
Dexamethasone
Immunoglobulin E
Immunoglobulins
Interferons
Lung
Mice*
Ovalbumin
Ovum
Th17 Cells
Cytokines
Dexamethasone
Immunoglobulin E
Immunoglobulins
Interferons
Ovalbumin
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