PMID- 28989571 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 1976-1457 (Print) IS - 2005-6168 (Electronic) IS - 1976-1457 (Linking) VI - 11 IP - 5 DP - 2017 Oct TI - Black soybean anthocyanins attenuate inflammatory responses by suppressing reactive oxygen species production and mitogen activated protein kinases signaling in lipopolysaccharide-stimulated macrophages. PG - 357-364 LID - 10.4162/nrp.2017.11.5.357 [doi] AB - 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 microg/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. FAU - Kim, Jin Nam AU - Kim JN AD - Department of Food Science and Nutrition, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonngi 14662, Korea. FAU - Han, Sung Nim AU - Han SN AD - Department of Food and Nutrition, Seoul National University, Seoul 08826, Korea. FAU - Ha, Tae Joung AU - Ha TJ AD - National Institute of Crop Science, Rural Development Administration (RDA), Wanju-gun, Jeonbuk 54875, Korea. FAU - Kim, Hye-Kyeong AU - Kim HK AD - Department of Food Science and Nutrition, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonngi 14662, Korea. LA - eng PT - Journal Article DEP - 20170918 PL - Korea (South) TA - Nutr Res Pract JT - Nutrition research and practice JID - 101311052 PMC - PMC5621357 OTO - NOTNLM OT - Anthocyanins OT - anti-inflammatory agents OT - macrophage OT - mitogen-activated protein kinases OT - reactive oxygen species COIS- CONFLICT OF INTEREST: The authors declare no potential conflicts of interests. EDAT- 2017/10/11 06:00 MHDA- 2017/10/11 06:01 PMCR- 2017/10/01 CRDT- 2017/10/10 06:00 PHST- 2017/07/07 00:00 [received] PHST- 2017/08/19 00:00 [revised] PHST- 2017/08/31 00:00 [accepted] PHST- 2017/10/10 06:00 [entrez] PHST- 2017/10/11 06:00 [pubmed] PHST- 2017/10/11 06:01 [medline] PHST- 2017/10/01 00:00 [pmc-release] AID - 10.4162/nrp.2017.11.5.357 [doi] PST - ppublish SO - Nutr Res Pract. 2017 Oct;11(5):357-364. doi: 10.4162/nrp.2017.11.5.357. Epub 2017 Sep 18.