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Article type: Research Article
Authors: Tang, Fenga | Tian, Long-haib | Zhu, Xiao-hana | Yang, Sena | Zeng, Huana | Yang, Yong-yaob; *
Affiliations: [a] Department of Cardiology, The Second People’s Hospital of Guiyang, Guiyang, Guizhou, China | [b] Department of Cardiology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
Correspondence: [*] Corresponding author: Yong-yao Yang, Department of Cardiology, Guizhou Provincial People’s Hospital, No. 83, Zhongshan East Road, Guiyang City, Guizhou Province, Guizhou 550000, China. Tel.: +18108511083; E-mail: 729142921@qq.com.
Abstract: BACKGROUND:The precise association between lncRNA H19 and ferroptosis in the context of atherosclerosis remains uncertain. OBJECTIVE:This study is to clarify the underlying process and propose novel approaches for the advancement of therapeutic interventions targeting atherosclerosis. METHODS:Assessment of ferroptosis, which entails the evaluation of cell viability using CCK-8 and the quantification of intracellular MDA, GSH, and ferrous ions. Simultaneously, the protein expression levels of assessed by western blot analysis, while the expression level of lncRNA H19 was also determined. Furthermore, HAECs that were cultured with ox-LDL were subjected to Fer-1 interference. HAECs were exposed to ox-LDL and then transfected with H19 shRNA and H19 overexpression vector pcDNA3.1. The level of ferroptosis in the cells was then measured. Then, HAECs were subjected to incubation with ox-LDL, followed by transfection with H19 shRNA and treated with Erastin to assess the levels of ferroptosis, cell viability, and inflammatory factor production. and the ability for blood vessel development. RESULTS:The survival rate of HAECs in the ox-LDL group was much lower. Ox-LDL resulted in an upregulation of ACSL4 expression in HAECs, while the expression of SLC7A11 and GPX4 decreased. CONCLUSIONS:lncRNA H19 enhances ferroptosis and exacerbates arterial endothelial cell damage induced by LDL.
Keywords: lncRNA H19, ferroptosis, arterial endothelial cell damage
DOI: 10.3233/CH-242261
Journal: Clinical Hemorheology and Microcirculation, vol. Pre-press, no. Pre-press, pp. 1-13, 2024
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