DOI QR코드

DOI QR Code

Black soybean anthocyanins attenuate inflammatory responses by suppressing reactive oxygen species production and mitogen activated protein kinases signaling in lipopolysaccharide-stimulated macrophages

  • Kim, Jin Nam ;
  • Han, Sung Nim ;
  • Ha, Tae Joung ;
  • Kim, Hye-Kyeong
  • Received : 2017.07.07
  • Accepted : 2017.08.31
  • Published : 2017.10.02

Abstract

BACKGROUND/OBJECTIVES: Oxidative stress is closely related with inflammation and development of many diseases. Black soybean seed coat contains high amount of anthocyanins, which are well-known for free radical scavenging activities. This study investigated inflammatory response and action mechanism of black soybean anthocyanins with regard to antioxidant activity in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. MATERIALS/METHODS: RAW 264.7 cells were treated with anthocyanins extracted from black soybean seed coats in a concentration range of 12.5 to $100{\mu}g/mL$. The production of reactive oxygen species (ROS), secretion of pro-inflammatory mediators and cytokines, and the signaling in the mitogen activated protein kinases (MAPKs) pathway were examined. RESULTS: Black soybean anthocyanins significantly decreased LPS-stimulated production of ROS, inflammatory mediators such as nitric oxide (NO) and prostaglandin $E_2$, and pro-inflammatory cytokines, including tumor necrosis factor ${\alpha}$ and interleukin-6, in a dose-dependent manner without cytotoxicity (P < 0.001). Black soybean anthocyanins downregulated the expression of inducible NO synthase and cyclooxygenase-2 in LPS-stimulated RAW 264.7 cells (P < 0.001). Moreover, black soybean anthocyanins inhibited LPS-induced phosphorylation of MAPKs, including extracellular signal-regulated kinase, c-Jun N-terminal kinase, and p38 (P < 0.001). CONCLUSION: These results suggest that black soybean anthocyanins exert anti-inflammatory activity by inhibiting ROS generation and subsequent MAPKs signaling, thereby inhibiting inflammatory responses.

Keywords

Anthocyanins;anti-inflammatory agents;macrophage;mitogen-activated protein kinases;reactive oxygen species

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  3. CaMYC, A Novel Transcription Factor, Regulates Anthocyanin Biosynthesis in Color-leaved Pepper (Capsicum annuum L.) pp.1435-8107, 2018, https://doi.org/10.1007/s00344-018-9871-2

Acknowledgement

Grant : Cooperative Research Program for Agriculture Science and Technology Development

Supported by : Rural Development Administration, Catholic University of Korea