期刊
NUTRIENTS
卷 10, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/nu10070861
关键词
anthocyanin; sour cherry; Caco-2; inflammation; permeability; NF-kappa B
资金
- Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences research grant of the National Research, Development and Innovation Office, Budapest, Hungary [BO/00290/16, FK_17 (FK124634)]
- [EFOP-3.6.1-16-2016-00022]
- [AGR_PIAC_13-1-2013-0039]
- [GINOP-2.2.1-15-2017-00079]
Anthocyanins have several beneficial effects, especially on inflammatory and oxidative conditions. The pro-inflammatory cytokines, tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta), induce damage in the intestinal barrier and participate in the pathogenesis of chronic bowel diseases. A number of fruits have high anthocyanin contents with strong biological activity which can support protective actions. Sour cherry (Prunus cerassus) is one of the richest fruits in anthocyanins; especially it has high content of cyanidins. The aim of this study was to test the biological effects of a pure sour cherry anthocyanin extract under inflammatory conditions on the intestinal barrier. Caco-2 monolayers were stimulated with 50 ng/mL TNF-alpha and 25 ng/mL IL-1 beta, and the protective effects of the anthocyanin extract were examined. We demonstrated the safety of 500, 50, 5 and 0.5 mu M anthocyanin extracts through cell impedance measurements. The 50 mu M anthocyanin extract inhibited the cytokine-induced Caco-2 permeability and the nuclear translocation of NF-kappa B p65 subunits. The extract significantly reduced the release of IL-6 and IL-8 production in intestinal cells and glutathione peroxidase activity stimulated by cytokines. We demonstrated, for the first time, the beneficial effects of pure sour cherry anthocyanin extract on inflammatory Caco-2 monolayers, indicating that this substance could be protective in inflammatory bowel diseases and is an excellent raw material for further applications and formulations.
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