Hyperglycemia promotes myelopoiesis and impairs the resolution of atherosclerosis.
Hyperglycemia promotes myelopoiesis and impairs the resolution of atherosclerosis.
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DOI:
10.1016/j.cmet.2013.04.001
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发表时间:
2013-05-07
期刊:
影响因子:
29
通讯作者:
Goldberg IJ
中科院分区:
文献类型:
--
作者:
Nagareddy PR;Murphy AJ;Stirzaker RA;Hu Y;Yu S;Miller RG;Ramkhelawon B;Distel E;Westerterp M;Huang LS;Schmidt AM;Orchard TJ;Fisher EA;Tall AR;Goldberg IJ
Diabetes is a major risk factor for atherosclerosis. Although atherosclerosis is initiated by deposition of cholesterol-rich lipoproteins in the artery wall, the entry of inflammatory leukocytes into lesions fuels disease progression and impairs resolution. We show that diabetic mice have increased numbers of circulating neutrophils and Ly6-Chi monocytes, reflecting hyperglycemia-induced proliferation and expansion of bone marrow myeloid progenitors and release of monocytes into the circulation. Increased neutrophil production of S100A8/A9, via an interaction with the receptor for advanced glycation end products on common myeloid progenitor cells, leads to enhanced myelopoiesis. Treatment of hyperglycemia reduces monocytosis, entry of monocytes into atherosclerotic lesions and promotes regression. In patients with type I diabetes plasma S100A8/A9 levels correlate with leukocyte counts and coronary artery disease. Thus, hyperglycemia drives myelopoiesis and thus promotes atherogenesis in diabetes.
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