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Oral administration ofLactobacillus plantarumCQPC11 attenuated the airway inflammation in an ovalbumin (OVA)‐induced Balb/c mouse model of asthma

卵清蛋白 免疫学 医学 哮喘 免疫球蛋白E 炎症 口服 药理学 免疫系统 抗体
作者
Huan Lan,Zhongyu Gui,Zhen Zeng,Dayu Li,Bo Qian,Linyuan Qin,Ling Dai,Jia‐Le Song
出处
期刊:Journal of Food Biochemistry [Wiley]
卷期号:46 (2) 被引量:15
标识
DOI:10.1111/jfbc.14036
摘要

This study investigated the antiasthmatic and anti-inflammatory effects of Lactobacillus plantarum-CQPC11 (LP-CQPC11) on ovalbumin (OVA)-induced asthmatic Balb/c mice. Administration of different doses of LP-CQPC11 (105, 107, and 109 colony-forming unit [CFU]/mouse) effectively reduced airway hyperresponsiveness (AHR) and the lung W/D ratio in asthmatic mice. LP-CQPC11 treatment reduced the accumulation of inflammatory cells in the BALF and attenuated histologic edema in asthmatic mice. Administration of LP-CQPC11 decreased the serum levels of OVA-specific IgE, IgE, and OVA-specific IgG1. LP-CQPC11 treatment decreased the levels of inflammatory cytokines (TNF-α, IL-4, IL-13, IL-5, and IL-6) in the BALF of asthmatic mice. In addition, LP-CQPC11 also elevated the mRNA levels of Foxp3 and T-bet and decreased the mRNA levels of Gata3 and RORγt in asthmatic mice lungs. Administration of LP-CQPC11 also reduced OVA-induced oxidative stress by improving the activities of GSH-Px, SOD, and catalase in the lungs. Finally, LP-CQPC11 treatment also significantly decreased the activation of the NF-κB pathway to modulate the inflammatory reaction in the lungs of asthmatic mice. The results from this study clearly demonstrated that oral administration of LP-CQPC11 exhibited outstanding activity in attenuating OVA-induced asthma in a mouse model. Furthermore, LP-CQPC11 may be an effective microecologic agent in preventing allergic asthma in the future. Practical applications Allergic asthma is a common chronic inflammation-associated respiratory disease. Lactic acid bacteria (LAB) are known as a health product involved in modulating immune tolerance and play important roles in disease prevention and treatment. Many studies have reported that LAB, as probiotics, exhibits great antioxidation, anticancer, and anti-inflammatory activities and have health benefits in gastrointestinal disorders. In fact, human studies have confirmed that Lactobacillus rhamnosus strains have an effective activity to reduce the risk of allergic asthma. LP-CQPC11 was isolated from Sichuan pickled cabbages (a type of LAB-fermented vegetable product, also called Sichuan paocai) and was reported to reduce d-galactose-induced aging in mice in our previous study. However, the antiasthmatic and anti-inflammatory activities of LP-CQPC11 are unclear. The current study investigated the antiasthmatic and anti-inflammatory effects of LP-CQPC11 on OVA-induced asthmatic Balb/c mice.
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