PMID- 28448865 OWN - NLM STAT- MEDLINE DCOM- 20180326 LR - 20180326 IS - 1950-6007 (Electronic) IS - 0753-3322 (Linking) VI - 91 DP - 2017 Jul TI - Glycolipids from spinach suppress LPS-induced vascular inflammation through eNOS and NK-kappaB signaling. PG - 111-120 LID - S0753-3322(17)30153-1 [pii] LID - 10.1016/j.biopha.2017.04.052 [doi] AB - Glycolipids are the major constituent of the thylakoid membrane of higher plants and have a variety of biological and pharmacological activities. However, anti-inflammatory effects of glycolipids on vascular endothelial cells have not been elucidated. Here, we investigated the effect of glycolipids extracted from spinach on lipopolysaccharides (LPS)-induced endothelial inflammation and evaluated the underlying molecular mechanisms. Treatment with glycolipids from spinach had no cytotoxic effects on cultured human umbilical vein endothelial cells (HUVECs) and significantly blocked the expression of LPS-induced interleukin (IL)-6, monocyte chemoattractant protein-1 (MCP-1), vascular cell adhesion molecule-1 (VCAM-1), and intracellular adhesion molecule-1 (ICAM-1) in them. Glycolipids treatment also effectively suppressed monocyte adhesion to HUVECs. Treatment with glycolipids inhibited LPS-induced NF-kappaB phosphorylation and nuclear translocation. In addition, glycolipids treatment significantly promoted endothelial nitric oxide synthase (eNOS) activation and nitric oxide (NO) production in HUVECs. Furthermore, glycolipids treatment blocked LPS-induced inducible NOS (iNOS) expression in HUVECs. Pretreatment with a NOS inhibitor attenuated glycolipids-induced suppression of NF-kappaB activation and adhesion molecule expression, and abolished the glycolipids-mediated suppression of monocyte adhesion to HUVECs. These results indicate that glycolipids suppress LPS-induced vascular inflammation through attenuation of the NF-kappaB pathway by increasing NO production in endothelial cells. These findings suggest that glycolipids from spinach may have a potential therapeutic use for inflammatory vascular diseases. CI - Copyright (c) 2017 Elsevier Masson SAS. All rights reserved. FAU - Ishii, Masakazu AU - Ishii M AD - Department of Oral and Maxillofacial Prosthodontics, Kagoshima University Graduate school of Medical and Dental Science, Kagoshima 890-8544, Japan. Electronic address: masai@dent.kagoshima-u.ac.jp. FAU - Nakahara, Tatsuo AU - Nakahara T AD - Maruzen Pharmaceuticals Co., Ltd., Hiroshima 729-3102, Japan. FAU - Araho, Daisuke AU - Araho D AD - Maruzen Pharmaceuticals Co., Ltd., Hiroshima 729-3102, Japan. FAU - Murakami, Juri AU - Murakami J AD - Department of Oral and Maxillofacial Prosthodontics, Kagoshima University Graduate school of Medical and Dental Science, Kagoshima 890-8544, Japan; Department of Oral and Maxillofacial Surgery, Kagoshima University Graduate School of Medical and Dental Science, Kagoshima 890-8544, Japan. FAU - Nishimura, Masahiro AU - Nishimura M AD - Department of Oral and Maxillofacial Prosthodontics, Kagoshima University Graduate school of Medical and Dental Science, Kagoshima 890-8544, Japan. LA - eng PT - Journal Article DEP - 20170424 PL - France TA - Biomed Pharmacother JT - Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie JID - 8213295 RN - 0 (Cytokines) RN - 0 (Glycolipids) RN - 0 (Inflammation Mediators) RN - 0 (Lipopolysaccharides) RN - 0 (NF-kappa B) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type III) SB - IM MH - Blood Vessels/*pathology MH - Cell Adhesion/drug effects MH - Cell Survival/drug effects MH - Cytokines/metabolism MH - Glycolipids/isolation & purification/pharmacology/*therapeutic use MH - Human Umbilical Vein Endothelial Cells/drug effects/metabolism/pathology MH - Humans MH - Inflammation/*drug therapy/*enzymology/pathology MH - Inflammation Mediators/metabolism MH - Intercellular Adhesion Molecule-1/metabolism MH - Lipopolysaccharides MH - Monocytes/cytology MH - NF-kappa B/*metabolism MH - Nitric Oxide Synthase Type III/*metabolism MH - *Signal Transduction MH - Spinacia oleracea/*chemistry MH - Vascular Cell Adhesion Molecule-1/metabolism OTO - NOTNLM OT - Anti-inflammation OT - Endothelial cells OT - Glycolipids OT - NF-kappaB OT - eNOS EDAT- 2017/04/28 06:00 MHDA- 2018/03/27 06:00 CRDT- 2017/04/28 06:00 PHST- 2017/01/11 00:00 [received] PHST- 2017/04/07 00:00 [revised] PHST- 2017/04/13 00:00 [accepted] PHST- 2017/04/28 06:00 [pubmed] PHST- 2018/03/27 06:00 [medline] PHST- 2017/04/28 06:00 [entrez] AID - S0753-3322(17)30153-1 [pii] AID - 10.1016/j.biopha.2017.04.052 [doi] PST - ppublish SO - Biomed Pharmacother. 2017 Jul;91:111-120. doi: 10.1016/j.biopha.2017.04.052. Epub 2017 Apr 24.