PMID- 24043262 OWN - NLM STAT- MEDLINE DCOM- 20140226 LR - 20140103 IS - 1530-6860 (Electronic) IS - 0892-6638 (Linking) VI - 28 IP - 1 DP - 2014 Jan TI - Reprogramming macrophages to an anti-inflammatory phenotype by helminth antigens reduces murine atherosclerosis. PG - 288-99 LID - 10.1096/fj.13-235911 [doi] AB - Atherosclerosis is a lipid-driven inflammatory disease of the vessel wall, characterized by the chronic activation of macrophages. We investigated whether the helminth-derived antigens [soluble egg antigens (SEAs)] could modulate macrophage inflammatory responses and protect against atherosclerosis in mice. In bone marrow-derived macrophages, SEAs induce anti-inflammatory macrophages, typified by high levels of IL-10 and reduced secretion of proinflammatory mediators. In hyperlipidemic LDLR(-/-) mice, SEA treatment reduced plaque size by 44%, and plaques were less advanced compared with PBS-injected littermate controls. The atheroprotective effect of SEAs was found to be mainly independent of cholesterol lowering and T-lymphocyte responses but instead could be attributed to diminished myeloid cell activation. SEAs reduced circulating neutrophils and inflammatory Ly6C(high) monocytes, and macrophages showed high IL-10 production. In line with the observed systemic effects, atherosclerotic lesions of SEA-treated mice showed reduced intraplaque inflammation as inflammatory markers [TNF-alpha, monocyte chemotactic protein 1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and CD68], neutrophil content, and newly recruited macrophages were decreased. We show that SEA treatment protects against atherosclerosis development by dampening inflammatory responses. In the future, helminth-derived components may provide novel opportunities to treat chronic inflammatory diseases, as they diminish systemic inflammation and reduce the activation of immune cells. FAU - Wolfs, Ine M J AU - Wolfs IM AD - 1Department of Medical Biochemistry, Rm. L01-146.2, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands. m.dewinther@amc.uva.nl. FAU - Stoger, J Lauran AU - Stoger JL FAU - Goossens, Pieter AU - Goossens P FAU - Pottgens, Chantal AU - Pottgens C FAU - Gijbels, Marion J J AU - Gijbels MJ FAU - Wijnands, Erwin AU - Wijnands E FAU - van der Vorst, Emiel P C AU - van der Vorst EP FAU - van Gorp, Patrick AU - van Gorp P FAU - Beckers, Linda AU - Beckers L FAU - Engel, David AU - Engel D FAU - Biessen, Erik A L AU - Biessen EA FAU - Kraal, Georg AU - Kraal G FAU - van Die, Irma AU - van Die I FAU - Donners, Marjo M P C AU - Donners MM FAU - de Winther, Menno P J AU - de Winther MP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130916 PL - United States TA - FASEB J JT - FASEB journal : official publication of the Federation of American Societies for Experimental Biology JID - 8804484 RN - 0 (Antigens, Helminth) RN - 0 (Chemokine CCL2) RN - 0 (Receptors, LDL) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Antigens, Helminth/*metabolism MH - Atherosclerosis/*metabolism/*therapy MH - Chemokine CCL2/metabolism MH - Macrophages/*metabolism MH - Mice MH - Mice, Inbred C57BL MH - Mice, Mutant Strains MH - Receptors, LDL/genetics/metabolism MH - Tumor Necrosis Factor-alpha/metabolism OTO - NOTNLM OT - immune modulation OT - inflammation OT - monocytes OT - mouse OT - schistosome EDAT- 2013/09/18 06:00 MHDA- 2014/02/27 06:00 CRDT- 2013/09/18 06:00 PHST- 2013/09/18 06:00 [entrez] PHST- 2013/09/18 06:00 [pubmed] PHST- 2014/02/27 06:00 [medline] AID - fj.13-235911 [pii] AID - 10.1096/fj.13-235911 [doi] PST - ppublish SO - FASEB J. 2014 Jan;28(1):288-99. doi: 10.1096/fj.13-235911. Epub 2013 Sep 16.