PMID- 33693294 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210312 IS - 2434-0790 (Electronic) IS - 2434-0790 (Linking) VI - 3 IP - 2 DP - 2021 Jan 16 TI - Phosphorylcholine-Primed Dendritic Cells Aggravate the Development of Atherosclerosis in ApoE(-/-) Mice. PG - 86-94 LID - 10.1253/circrep.CR-20-0118 [doi] AB - Background: Atherosclerosis is an inflammatory disease involving activation of adaptive and innate immune responses to antigens, including oxidized low-density lipoprotein (oxLDL) and phosphorylcholine (PC). Dendritic cells (DCs), which are antigen-presenting cells that activate T cells, are present in atherosclerotic lesions and are activated in immune organs. However, the mechanism by which PC promotes atherosclerosis is unclear. Methods and Results: To evaluate whether PC promotes atherosclerosis via DCs, 2x10(5) DCs activated by PC-keyhole limpet hemocyanin (DCs+PC-KLH) were injected into ApoE(-/-) mice and the features of the plaques and the effects of the DCs on cellular and humoral immunity against PC-KLH were determined. Mice injected with DCs+PC-KLH had significantly larger atherosclerotic lesions than controls, with increased inflammation in the lesions and plaque instability. Furthermore, DCs+PC-KLH were characterized using flow cytometry after coculture of bone marrow-derived DCs and naive T cells. DCs+PC-KLH showed an inflammatory phenotype, with increased CD86, CD40, and major histocompatibility complex Class II molecules (MHC-II), which promoted PC-specific T helper (Th) 1 and Th17 cell differentiation in vivo and in vitro. Moreover, 2 weeks after the administration of DCs+PC-KLH to mice, these mice produced PC- and oxLDL-specific IgG2a, compared with no production in the controls. Conclusions: These findings suggest that DCs presenting PC promote specific immunity to PC, increase lesion inflammation, and accelerate atherosclerosis, which may explain how PC promotes atherosclerosis. CI - Copyright (c) 2021, THE JAPANESE CIRCULATION SOCIETY. FAU - Dong, Qian AU - Dong Q AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Yu, Jian AU - Yu J AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Ding, Yan AU - Ding Y AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Ji, Qing-Wei AU - Ji QW AD - Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region Nanning China. FAU - Zhu, Rui-Rui AU - Zhu RR AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Wei, Yu-Zhen AU - Wei YZ AD - Department of Cardiology, the First Affiliated Hospital of Zhengzhou University Zhengzhou China. FAU - Xu, Wen-Bing AU - Xu WB AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Zhong, Yu-Cheng AU - Zhong YC AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Zhu, Zheng-Feng AU - Zhu ZF AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Meng, Kai AU - Meng K AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Peng, Yu-Dong AU - Peng YD AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Sun, Hai-Tao AU - Sun HT AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Wang, Yue AU - Wang Y AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Pan, Cheng-Liang AU - Pan CL AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Zeng, Qiu-Tang AU - Zeng QT AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. FAU - Yu, Kun-Wu AU - Yu KW AD - Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology Wuhan China. LA - eng PT - Journal Article DEP - 20210116 PL - Japan TA - Circ Rep JT - Circulation reports JID - 101746642 PMC - PMC7939956 OTO - NOTNLM OT - Atherosclerosis OT - Cellular immunity OT - Dendritic cells OT - Humoral immunity OT - Phosphorylcholine COIS- None of the authors have any conflicts of interest to declare. EDAT- 2021/03/12 06:00 MHDA- 2021/03/12 06:01 PMCR- 2021/01/16 CRDT- 2021/03/11 06:40 PHST- 2021/03/11 06:40 [entrez] PHST- 2021/03/12 06:00 [pubmed] PHST- 2021/03/12 06:01 [medline] PHST- 2021/01/16 00:00 [pmc-release] AID - 10.1253/circrep.CR-20-0118 [doi] PST - epublish SO - Circ Rep. 2021 Jan 16;3(2):86-94. doi: 10.1253/circrep.CR-20-0118.