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Zhu L, Giunzioni I, Tavori H, Covarrubias R, Ding L, Zhang Y, Ormseth M, Major AS, Stafford JM, Linton MF, Fazio S. Loss of Macrophage Low-Density Lipoprotein Receptor-Related Protein 1 Confers Resistance to the Antiatherogenic Effects of Tumor Necrosis Factor-α Inhibition. Arterioscler Thromb Vasc Biol 2016; 36:1483-95. [PMID: 27365402 DOI: 10.1161/atvbaha.116.307736] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 06/20/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Antiatherosclerotic effects of tumor necrosis factor-α (TNF-α) blockade in patients with systemic inflammatory states are not conclusively demonstrated, which suggests that effects depend on the cause of inflammation. Macrophage LRP1 (low-density lipoprotein receptor-related protein 1) and apoE contribute to inflammation through different pathways. We studied the antiatherosclerosis effects of TNF-α blockade in hyperlipidemic mice lacking either LRP1 (MΦLRP1(-/-)) or apoE from macrophages. APPROACH AND RESULTS Lethally irradiated low-density lipoprotein receptor (LDLR)(-/-) mice were reconstituted with bone marrow from either wild-type, MΦLRP1(-/-), apoE(-/-) or apoE(-/-)/MΦLRP1(-/-)(DKO) mice, and then treated with the TNF-α inhibitor adalimumab while fed a Western-type diet. Adalimumab reduced plasma TNF-α concentration, suppressed blood ly6C(hi) monocyte levels and their migration into the lesion, and reduced lesion cellularity and inflammation in both wild-type→LDLR(-/-) and apoE(-/-)→LDLR(-/-) mice. Overall, adalimumab reduced lesion burden by 52% to 57% in these mice. Adalimumab reduced TNF-α and blood ly6C(hi) monocyte levels in MΦLRP1(-/-)→LDLR(-/-) and DKO→LDLR(-/-) mice, but it did not suppress ly6C(hi) monocyte migration into the lesion or atherosclerosis progression. CONCLUSIONS Our results show that TNF-α blockade exerts antiatherosclerotic effects that are dependent on the presence of macrophage LRP1.
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Affiliation(s)
- Lin Zhu
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Ilaria Giunzioni
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Hagai Tavori
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Roman Covarrubias
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Lei Ding
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Youmin Zhang
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Michelle Ormseth
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Amy S Major
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - John M Stafford
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - MacRae F Linton
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.)
| | - Sergio Fazio
- From the Division of Cardiovascular Medicine (L.Z., R.C., L.D., Y.Z., A.S.M., M.F.L.), Division of Diabetes, Endocrinology, and Metabolism (L.Z., J.M.S.), Division of Rheumatology, Department of Medicine (M.O.), Vanderbilt University Medical Center, Nashville, TN; Tennessee Valley Healthcare System, Nashville (L.Z., J.M.S.); and Center for Preventive Cardiology, Knight Cardiovascular Institute, Oregon Health & Science University, Portland (I.G., H.T., S.F.).
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Wang J, Zhang X, Mu L, Zhang M, Gao Z, Zhang J, Yao X, Liu C, Wang G, Wang D, Kong Q, Liu Y, Li N, Sun B, Li H. t-PA acts as a cytokine to regulate lymphocyte-endothelium adhesion in experimental autoimmune encephalomyelitis. Clin Immunol 2014; 152:90-100. [PMID: 24650778 DOI: 10.1016/j.clim.2014.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 03/10/2014] [Accepted: 03/11/2014] [Indexed: 01/17/2023]
Abstract
In this study, the capacity for t-PA to affect T cell-brain microvascular endothelial cell adhesion by acting as a cytokine was investigated. Following the treatment of a brain-derived endothelial cell line, bEnd.3, with various concentrations of t-PA, adhesion and transwell migration assays were performed. In the presence of t-PA, enhanced adhesion of T cells to bEnd.3 cells was observed. Using western blot analysis, an increase in ICAM-1 expression was detected for both t-PA-treated bEnd.3 cells and bEnd.3 cells treated with a non-enzymatic form of t-PA. In contrast, when LRP1 was blocked using a specific antibody, upregulation of ICAM-1 was inhibited and cAMP-PKA signaling was affected. Furthermore, using an EAE mouse model, administration of t-PA was associated with an increase in ICAM-1 expression by brain endothelial cells. Taken together, these findings suggest that t-PA can induce ICAM-1 expression in brain microvascular endothelial cells, and this may promote the development of EAE.
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Affiliation(s)
- Jinghua Wang
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Xin Zhang
- Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, China
| | - Lili Mu
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Mingqing Zhang
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Zhongming Gao
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Jia Zhang
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Xiuhua Yao
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Chuanliang Liu
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Guangyou Wang
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Dandan Wang
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Qingfei Kong
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Yumei Liu
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Na Li
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China
| | - Bo Sun
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China.
| | - Hulun Li
- Department of Neurobiology, Neurobiology Key Laboratory, Harbin Medical University, Education Department of Heilongjiang Province, Harbin, Heilongjiang 150086, China; Key Laboratories of Education Ministry for Myocardial Ischemia Mechanism and Treatment, Harbin, Heilongjiang 150086, China.
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