PMID- 29691578 OWN - NLM STAT- MEDLINE DCOM- 20190104 LR - 20190104 IS - 0371-0874 (Print) IS - 0371-0874 (Linking) VI - 70 IP - 2 DP - 2018 Apr 25 TI - [Effects of thyroid hormone on macrophage dysfunction induced by oxidized low-density lipoprotein]. PG - 141-148 AB - It has been recognized that patients with hypothyroidism have higher risks of atherosclerosis and coronary heart disease, however, the mechanisms are largely unknown. Considering that macrophage dysfunction plays an important role in the formation and development of atherosclerosis plaques, this study aimed to investigate the direct effects of thyroid hormone on macrophage functions and to provide new insight for the mechanism of hypothyroid atherosclerosis. RAW264.7 cells (mouse leukaemic monocyte macrophage cell line) were incubated with oxidized low-density lipoprotein (oxLDL) to establish macrophage foam cells model in vitro, and the protective effects of different concentration of thyroxine (T4) on the macrophage foam cells function were explored. The proliferation, migration and cell aging of macrophages were detected by MTT method, scratch test and beta-galactosidase staining respectively. The ELISA method was used to detect the secretion of tumor necrosis factor-alpha (TNF-alpha), monocyte chemoattractant protein-1 (MCP-1), and interleukin-1beta (IL-1beta). Western blot analysis was applied to measure the phosphorylation of focal adhesion kinase (FAK), which was required for the process of proliferation and migration of macrophages. The results showed that oxLDL significantly inhibited the macrophage proliferation and migration, induced cell senescence, and promoted the secretion of TNF-alpha, MCP-1, and IL-1beta; while T4 reversed those effects of oxLDL on macrophage in a concentration-dependent manner. Moreover, oxLDL increased the phosphorylation of FAK in macrophage, while T4 concentration-dependently reversed the effect. These results suggest that T4 modulates macrophage proliferation, migration, senescence, and secretion of inflammation factors in a concentration-dependent way. FAU - Ning, Yu AU - Ning Y AD - Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Zhang, Ming AU - Zhang M AD - Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. mzcap@163.com. FAU - DU, Yun-Hui AU - DU YH AD - Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Zhang, Hui-Na AU - Zhang HN AD - Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Li, Lin-Yi AU - Li LY AD - Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Qin, Yan-Wen AU - Qin YW AD - Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Wen, Wan-Wan AU - Wen WW AD - Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. FAU - Zhao, Quan-Ming AU - Zhao QM AD - Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China. LA - chi PT - Journal Article PL - China TA - Sheng Li Xue Bao JT - Sheng li xue bao : [Acta physiologica Sinica] JID - 20730130R RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 0 (IL1B protein, mouse) RN - 0 (Interleukin-1beta) RN - 0 (Lipoproteins, LDL) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (oxidized low density lipoprotein) RN - EC 2.7.10.2 (Focal Adhesion Kinase 1) RN - EC 2.7.10.2 (Ptk2 protein, mouse) RN - Q51BO43MG4 (Thyroxine) SB - IM MH - Animals MH - Atherosclerosis MH - Chemokine CCL2/metabolism MH - Foam Cells/*drug effects/pathology MH - Focal Adhesion Kinase 1/metabolism MH - Interleukin-1beta/metabolism MH - Lipoproteins, LDL/*adverse effects MH - Macrophages/*drug effects/pathology MH - Mice MH - Phosphorylation MH - RAW 264.7 Cells MH - Thyroxine/*pharmacology MH - Tumor Necrosis Factor-alpha/metabolism EDAT- 2018/04/25 06:00 MHDA- 2019/01/05 06:00 CRDT- 2018/04/26 06:00 PHST- 2018/04/26 06:00 [entrez] PHST- 2018/04/25 06:00 [pubmed] PHST- 2019/01/05 06:00 [medline] PST - ppublish SO - Sheng Li Xue Bao. 2018 Apr 25;70(2):141-148.