PMID- 20463304 OWN - NLM STAT- MEDLINE DCOM- 20100525 LR - 20211020 IS - 1535-3699 (Electronic) IS - 1535-3702 (Print) IS - 1535-3699 (Linking) VI - 235 IP - 5 DP - 2010 May TI - The iron chelator, desferrioxamine, reduces inflammation and atherosclerotic lesion development in experimental mice. PG - 633-41 LID - 10.1258/ebm.2009.009229 [doi] AB - Vascular inflammation and monocyte recruitment are initiating events in atherosclerosis that have been suggested to be caused, in part, by iron-mediated oxidative stress and shifts in the intracellular redox environment of vascular cells. Therefore, the objective of this study was to investigate whether the intracellular iron chelator, desferrioxamine (DFO), reduces inflammation and atherosclerosis in experimental mice. Treatment of C57BL/6J mice with DFO (daily intraperitoneal injection of 100 mg/kg body weight for two weeks) strongly inhibited lipopolysaccharide-induced increases of soluble cellular adhesion molecules and monocyte chemoattractant protein-1 (MCP-1) in the serum and activation of the redox-sensitive transcription factors, nuclear factor-kappaB and activator protein-1, in the aorta. Furthermore, treatment of apolipoprotein E-deficient (apoE-/-) mice with DFO (100 mg/kg, intraperitoneal, daily for 10 weeks) attenuated aortic atherosclerotic lesion development by 26% (P < 0.05). DFO treatment of apoE-/- mice also lowered serum levels of MCP-1 and gene expression of proinflammatory and macrophage markers in the aorta and heart, in parallel with increased protein expression of the transferrin receptor in the heart and liver. In contrast, DFO treatment had no effect on serum cholesterol and triglyceride levels. These data show that DFO inhibits inflammation and atherosclerosis in experimental mice, providing the proof-of-concept for an important role of iron in atherogenesis. Whether eliminating excess iron is a useful adjunct for the prevention or treatment of atherosclerosis in humans remains to be investigated. FAU - Zhang, Wei-Jian AU - Zhang WJ AD - Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA. weijian.zhang@oregonstate.edu FAU - Wei, Hao AU - Wei H FAU - Frei, Balz AU - Frei B LA - eng GR - P01 AT002034-04/AT/NCCIH NIH HHS/United States GR - P01 AT002034-02/AT/NCCIH NIH HHS/United States GR - P01 AT002034-03/AT/NCCIH NIH HHS/United States GR - P01 AT002034-06/AT/NCCIH NIH HHS/United States GR - P01 AT002034-07/AT/NCCIH NIH HHS/United States GR - P01 AT002034-05/AT/NCCIH NIH HHS/United States GR - P01 AT002034-077040/AT/NCCIH NIH HHS/United States GR - P01 AT002034-039001/AT/NCCIH NIH HHS/United States GR - P01 AT002034-019001/AT/NCCIH NIH HHS/United States GR - P01 AT002034/AT/NCCIH NIH HHS/United States GR - P01 AT002034-01/AT/NCCIH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - Switzerland TA - Exp Biol Med (Maywood) JT - Experimental biology and medicine (Maywood, N.J.) JID - 100973463 RN - 0 (Apolipoproteins E) RN - 0 (Chemokine CCL2) RN - 0 (Iron Chelating Agents) RN - 0 (Lipopolysaccharides) RN - 0 (NF-kappa B) RN - 0 (Transcription Factor AP-1) RN - 0 (Triglycerides) RN - 0 (Vascular Cell Adhesion Molecule-1) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) RN - 97C5T2UQ7J (Cholesterol) RN - E1UOL152H7 (Iron) RN - J06Y7MXW4D (Deferoxamine) SB - IM MH - Animals MH - Aorta/drug effects/metabolism/pathology MH - Apolipoproteins E/deficiency/metabolism MH - Atherosclerosis/blood/*complications/*drug therapy/pathology MH - Chemokine CCL2/blood MH - Cholesterol/metabolism MH - Deferoxamine/pharmacology/*therapeutic use MH - Female MH - Gene Expression Regulation/drug effects MH - Inflammation/*complications/*drug therapy/genetics/pathology MH - Intercellular Adhesion Molecule-1/blood MH - Iron/metabolism MH - Iron Chelating Agents/pharmacology/*therapeutic use MH - Lipopolysaccharides MH - Mice MH - Mice, Inbred C57BL MH - NF-kappa B/metabolism MH - Organ Specificity/drug effects/genetics MH - Solubility/drug effects MH - Transcription Factor AP-1/metabolism MH - Triglycerides/metabolism MH - Vascular Cell Adhesion Molecule-1/blood MH - Weight Gain/drug effects PMC - PMC3057189 MID - NIHMS187511 COIS- DISCLOSURE/CONFLICT OF INTEREST There is NO conflict of interest to disclose. EDAT- 2010/05/14 06:00 MHDA- 2010/05/26 06:00 PMCR- 2011/03/15 CRDT- 2010/05/14 06:00 PHST- 2010/05/14 06:00 [entrez] PHST- 2010/05/14 06:00 [pubmed] PHST- 2010/05/26 06:00 [medline] PHST- 2011/03/15 00:00 [pmc-release] AID - 235/5/633 [pii] AID - 10.1258/ebm.2009.009229 [doi] PST - ppublish SO - Exp Biol Med (Maywood). 2010 May;235(5):633-41. doi: 10.1258/ebm.2009.009229.