Yu Tian, Xie Yiting, Yuan Juanli, Gao Jinyan, Xiao Zhiwen, Wu Yong, Chen Hongbing
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
Sino-German Joint Research Institute, Nanchang University, Nanchang, China.
Front Immunol. 2022 Apr 5;13:878186. doi: 10.3389/fimmu.2022.878186. eCollection 2022.
Wheat gluten is a critical trigger for celiac disease, often causing inflammatory lesions and oxidative stress damage in the intestines of patients. In daily life, it is difficult for celiac disease patients to strictly avoid the dietary intake of gluten, which makes complementary preventive therapy particularly urgent. As such, we investigated the alleviating effects of resveratrol and models of celiac disease.
We established and models of gluten protein-induced celiac disease. The intervention effect of resveratrol was defined well based on relevant indicators of inflammation, immunity and oxidative stress, and its possible involvement in signaling pathways and genes were also identified.
Resveratrol was effective in reducing intestinal oxidative stress and inflammatory damage induced by wheat gluten in both cell and mouse models for celiac disease. We identified correlations between the genes (Fgf15, Nr0b2, Aire and Ubd) and signaling pathways (PPAR, AMPK and FoxO) in which resveratrol performed critical roles.
Resveratrol contributed to regulate development of autoimmunity through up-regulation of Aire and Ubd genes and promote nutrient absorption in intestine through down-regulation of Fgf15 and Nr0b2 genes, as well as played a role in regulating complex response system of oxidative stress, inflammatory response and immune response in intestine by activating PPAR, AMPK and FoxO signaling pathways, thus effectively alleviating the intestinal symptoms of celiac disease.
小麦麸质是乳糜泻的关键触发因素,常导致患者肠道出现炎症性病变和氧化应激损伤。在日常生活中,乳糜泻患者很难严格避免麸质的饮食摄入,这使得辅助性预防治疗尤为迫切。因此,我们研究了白藜芦醇对乳糜泻模型的缓解作用。
我们建立了麸质蛋白诱导的乳糜泻细胞模型和小鼠模型。基于炎症、免疫和氧化应激的相关指标明确了白藜芦醇的干预效果,并确定了其可能涉及的信号通路和基因。
在乳糜泻的细胞模型和小鼠模型中,白藜芦醇均能有效减轻小麦麸质诱导的肠道氧化应激和炎症损伤。我们确定了白藜芦醇发挥关键作用的基因(Fgf15、Nr0b2、Aire和Ubd)与信号通路(PPAR、AMPK和FoxO)之间的相关性。
白藜芦醇通过上调Aire和Ubd基因有助于调节自身免疫的发展,通过下调Fgf15和Nr0b2基因促进肠道营养吸收,还通过激活PPAR、AMPK和FoxO信号通路在调节肠道氧化应激、炎症反应和免疫反应的复杂应答系统中发挥作用,从而有效缓解乳糜泻的肠道症状。