Louqin Zhisou Decoction Inhibits Mucus Hypersecretion for Acute Exacerbation of Chronic Obstructive Pulmonary Disease Rats by Suppressing EGFR-PI3K-AKT Signaling Pathway and Restoring Th17/Treg Balance

Evidence-based Complementary and Alternative Medicine : ECAM
Feng FengCuiling Feng

Abstract

Airway mucus hypersecretion is the main pathogenic factor in acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and the control of mucus secretion is closely associated with survival. Louqin Zhisou decoction (LQZS) has been found to improve lung function and reduce sputum in AECOPD patients, but the mechanism remains unclear. This study aimed to explore the mechanism of LQZS against mucus hypersecretion in lung tissues of rat AECOPD model. Wistar rats were used to establish AECOPD model by intratracheal instillation of LPS in combination with the continuous cigarette smoking. Rats were administrated LQZS/clarithromycin (CAM)/distilled water via gavage every day and all rats were sacrificed after 30 days. BALF and lung tissues were obtained. Lung morphology, cytokines levels, MUC5AC mRNA transcription and protein expression, phosphorylation of the EGFR-PI3K-AKT signaling pathway, and molecules involved in Th17/Treg balance were evaluated. The results demonstrated that LQZS protected rats from decline in pulmonary function and ameliorated lung injury. LQZS treatment decreased the number of goblet cells in airway and suppressed MUC5AC mRNA and protein expression of lung tissues. Furthermore, LQZS attenuated the l...Continue Reading

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Citations

Apr 25, 2020·International Journal of Molecular Sciences·Kun Woo KimMee-Sup Yoon
May 8, 2021·The Journal of Pathology·Sharif MoradiMostafa Ghanei
Aug 27, 2021·BioMed Research International·Mei-Ying GuoJun-Qi Wu

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Methods Mentioned

BETA
blood collection
bronchoalveolar lavage
ELISA
PCR
light microscopy

Software Mentioned

SPSS
Pro Plus
Image
Image J

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