首页|Sulforaphane ameliorates non-alcoholic steatohepatitis by KLF4-mediated macrophage M2 polarization
Sulforaphane ameliorates non-alcoholic steatohepatitis by KLF4-mediated macrophage M2 polarization
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Non-alcoholic fatty liver disease(NAFLD)has become a global issue and a severe threat to public health.However,to date,no approved therapeutic drugs have been developed.Dietary interventions with natural products have shown promise in preventing and treating NAFLD.Sulforaphane(SFN)is a phytocompound with antioxidant and anti-inflammatory properties,and previous research has demonstrated that SFN can ameliorate hepatic lipid accumulation and inflammation.However,the molecular mechanisms underlying these beneficial effects remain unclear.In this study,we confirmed the protective effects of SFN on excessive lipid accumulation and inflammatory injury in a high-fat,high-fructose diet-induced non-alcoholic steatohepatitis(NASH)mouse model.We found that SFN attenuates the inflammatory injury in a macrophage cell line and the liver of NASH mice,owing to the promotion of M1-type macrophage polarization toward the M2-type and the regulation of inflammatory mediators.Further analysis demonstrated that this SFN-induced macrophage M2-type polarization occurs in a Krüppel-like factor 4(KLF4)-dependent manner.In summary,we uncovered a new mechanism of action underlying SFN activity and provide evidence that dietary intervention with SFN might be protective against NASH.
Key Laboratory of Precision Nutrition and Food Quality,Key Laboratory of Functional Dairy,Ministry of Education
College of Food Science and Nutritional Engineering
China Agricultural University,Beijing 100083,China
Key Laboratory of Safety Assessment of Genetically Modified Organism(Food Safety),the Ministry of Agriculture and Rural Affairs of the P.R.China,Beijing 100083,China
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Science and Technology project of Henan ProvinceNational Natural Science Foundation of China2115 Talent Development Program of China Agricultural University
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