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Lv Y, Jiang Z, Zhou W, Yang H, Jin G, Wang D, Kong C, Qian Z, Gu Y, Chen S, Zhu L. Low-Shear Stress Promotes Atherosclerosis via Inducing Endothelial Cell Pyroptosis Mediated by IKKε/STAT1/NLRP3 Pathway. Inflammation 2024; 47:1053-1066. [PMID: 38315275 PMCID: PMC11147929 DOI: 10.1007/s10753-023-01960-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/11/2023] [Accepted: 12/25/2023] [Indexed: 02/07/2024]
Abstract
Atherosclerosis is initiated by vascular endothelial dysfunction, and low-shear stress (LSS) of blood flow is a key factor leading to endothelial dysfunction. Growing evidence suggests that endothelial cell pyroptosis plays an important role in the development of atherosclerosis. Studies have shown that low-shear stress can induce endothelial cell pyroptosis, but the exact mechanism remains unclear. Our experiments demonstrated that low-shear stress induced endothelial cell pyroptosis and the phosphorylation of IκB kinase ε (IKKε). IKKε knockdown not only significantly attenuated atherosclerosis lesions of aortic arch areas in ApoE-/- mice fed with high cholesterol diets, but also markedly reduced endothelial cell pyroptosis and NLRP3 expression triggered by low-shear stress. Further mechanism studies showed that IKKε promoted the expression of NLRP3 via activating signal transducer and activator of transcription 1 (STAT1) and the subsequent binding of STAT1 to NLRP3 promoter region. These results suggest that low-shear stress plays a pro-atherosclerotic role by promoting endothelial cell pyroptosis through the IKKε/STAT1/NLRP3 pathway, which provides new insights into the formation of atherosclerosis.
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Affiliation(s)
- Yifei Lv
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Zihao Jiang
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Wenying Zhou
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Hongfeng Yang
- Department of Intensive Care Unit, Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Guozhen Jin
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Dongchen Wang
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Chaohua Kong
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Zhiyuan Qian
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Yue Gu
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China
| | - Shaoliang Chen
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China.
| | - Linlin Zhu
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, 210000, China.
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