Acylated Anthocyanins From Black Carrots and Their Related Phenolic Acids Diminish Priming and Activation of the NLRP3 Inflammasome in THP-1 Monocytes

IF 4.5 2区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Inken Behrendt, Katharina Becker, Christof Björn Steingass, Ralf Schweiggert, Gabriela Michel, Elvira Friedrich, Daniela Grote, Zoe Martin, Hanna Pauline Dötzer, Mathias Fasshauer, Martin Speckmann, Sabine Kuntz
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引用次数: 0

Abstract

Scope

Excessive activation of the nucleotide-binding oligomerization domain-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome contributes to chronic inflammation. Thus, targeting NLRP3 inflammasome activation by anthocyanins may prevent inflammatory diseases. Therefore, the present study determines the influence of a black carrot extract (BCE) with high amounts of acylated anthocyanins and their related phenolic acids on the NLRP3 inflammasome.

Methods and results

THP-1 monocytes are pretreated with a BCE, cyanidin-3-glucoside (C3G), or hydroxycinnamic acids. NLRP3 inflammasome assembly is initiated by priming THP-1 monocytes with lipopolysaccharide and/or activating the NLRP3 inflammasome with nigericin. Flow cytometry is used to assess apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) speck formation, as well as ASC and NLRP3 protein expression. Caspase-1 activity is measured using a bioluminescent assay, and cytokine concentrations are determined by enzyme-linked immunosorbent assays (ELISA). C3G and phenolic acids diminish ASC and NLRP3 protein expression. In addition, C3G and phenolic acids attenuate ASC speck formation. Furthermore, the BCE and C3G decline caspase-1 activity. Consistently, IL-1β and IL-18 secretion are reduced upon NLRP3 inflammasome activation.

Conclusion

The present study shows that a BCE with high amounts of acylated anthocyanins and their related phenolic acids diminish priming and activation of the NLRP3 inflammasome in THP-1 monocytes.

Abstract Image

Abstract Image

黑胡萝卜中的酰化花青素及其相关酚酸可降低 THP-1 单核细胞中 NLRP3 炎症体的激发和激活作用
核苷酸结合寡聚化结构域样受体含吡啶结构域蛋白 3(NLRP3)炎性体的过度激活是慢性炎症的诱因。因此,利用花青素靶向激活 NLRP3 炎症体可以预防炎症性疾病。因此,本研究确定了含有大量酰化花青素及其相关酚酸的黑胡萝卜提取物(BCE)对 NLRP3 炎症体的影响。
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来源期刊
Molecular Nutrition & Food Research
Molecular Nutrition & Food Research 工程技术-食品科技
CiteScore
8.70
自引率
1.90%
发文量
250
审稿时长
1.7 months
期刊介绍: Molecular Nutrition & Food Research is a primary research journal devoted to health, safety and all aspects of molecular nutrition such as nutritional biochemistry, nutrigenomics and metabolomics aiming to link the information arising from related disciplines: Bioactivity: Nutritional and medical effects of food constituents including bioavailability and kinetics. Immunology: Understanding the interactions of food and the immune system. Microbiology: Food spoilage, food pathogens, chemical and physical approaches of fermented foods and novel microbial processes. Chemistry: Isolation and analysis of bioactive food ingredients while considering environmental aspects.
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