Format

Send to

Choose Destination
Sci Rep. 2014 Aug 29;4:6234. doi: 10.1038/srep06234.

Anthocyanin-rich fractions from red raspberries attenuate inflammation in both RAW264.7 macrophages and a mouse model of colitis.

Author information

1
1] College of Life Sciences, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen 518060, China [2].
2
1] College of Life Sciences, Department of Marine Science and Bio-Pharm, Shenzhen Key Laboratory of Marine Bioresourse and Eco-environmental Science, Shenzhen 518060, China [2].
3
College of Life Sciences, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen 518060, China.
4
College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
5
College of Life Sciences, Shenzhen key laboratory of synthetic biology, Shenzhen University, Shenzhen 518060, China.
6
College of Life Sciences, Department of Marine Science and Bio-Pharm, Shenzhen Key Laboratory of Marine Bioresourse and Eco-environmental Science, Shenzhen 518060, China.
7
1] College of Life Sciences, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen 518060, China [2] College of Life Sciences, Department of Marine Science and Bio-Pharm, Shenzhen Key Laboratory of Marine Bioresourse and Eco-environmental Science, Shenzhen 518060, China.

Abstract

Edible berries have a broad spectrum of biomedical functions, including improving immune responses and reducing risk for chronic diseases. In this study, the anti-inflammatory activities of crude extracts (CEs), anthocyanin-rich fractions (ARFs), and des-anthocyanin fractions (DAFs) from seven berries were evaluated based on their inhibitory effects on nitric oxide (NO) production in lipopolysaccharide (LPS)/IFN-γ-activated RAW264.7 macrophages. ARFs from red raspberries (RR-ARFs) exhibited the highest efficiency in suppressing NO synthesis. The anti-inflammatory properties were also demonstrated by reducing the expression levels of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-1 beta (IL-1β) and IL-6 in RAW264.7 cells. The luciferase reporter assay demonstrated that the activities of NF-κB and AP-1 signaling pathways were significantly suppressed by RR-ARFs. Further studies showed that RR-ARFs decreased the phosphorylation of IKK, IκBα, p65 and JNK and the nuclear translocation of p65 in LPS/IFN-γ-stimulated RAW264.7 cells. In a mouse colitis model, dextran sulfate sodium (DSS)-induced weight loss and histological damage were significantly ameliorated by RR-ARFs treatment. Taken together, our results indicate that RR-ARFs attenuate inflammation both in vitro and in vivo primarily by inhibiting the activation of NF-κB and MAPKs. The anti-inflammatory of RR-ARFs could be harnessed and applied in animal agriculture, drug and food industries.

PMID:
25167935
PMCID:
PMC4148654
DOI:
10.1038/srep06234
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center