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技术文章
文献引用产品：人主动脉血管平滑肌细胞T/G HA-VSMC
点击次数：22 发布时间：2026/10/27 17:03:24
文章标题：Fosb promotes ferroptosis in vascular smooth muscle cells via the NF-κB pathway to exacerbate abdominal aortic aneurysm progression
作者列表：Xiang Li, Qing Wang, Jiecheng Zhang, Wenjun Zhao, Xinting Zheng
影响因子：3.7
期刊：CELLULAR SIGNALLING
发表时间：2026-4-19
DOI:10.1016/j.cellsig.2026.112544
文献主题：Abstract
Background
Abdominal aortic aneurysm (AAA) is a fatal disease characterized by vascular wall inflammation and matrix remodeling. The inflammatory phenotypic transｆormation of smooth muscle cells (SMCs) holds a pivotal role in AAA pathogenesis. As an inflammatory regulator, whether FBJ osteosarcoma oncogene B (Fosb) participates in AAA progression by driving SMC phenotypic switching remains unclear.
Methods
Using the scRNA-seq data from AAA patients, we identified Fosb as a key driver of SMC phenotypic switching through cell clustering annotation, differential gene screening, functional enrichment, and pseudo-time trajectory analysis. An in vitro AAA cell model was established using Ang-II-stimulated T/G HA-VSMC cells. Fosb expression was assessed by qRT-PCR and western blot (WB). AAA cell models with Fosb knockdown or overexpression were constructed to investigate the effects of Fosb on T/G HA-VSMC cell proliferation, apoptosis, migration, invasion, contractile marker protein expression, and inflammatory cytokine secretion via WB, CCK8, Transwell, flow cytometry, and ELISA. Furthermore, WB was applied in detecting ferroptosis and NF-κB signaling pathway protein expression. Kits were employed for the determination of MDA, GSH, and Fe2+ levels, and flow cytometry was for ROS levels. Finally, an Ang-II-induced ApoE−/− mouse AAA model was constructed, and histological staining, WB, IHC, and ELISA were carried out to validate that Fosb boosted AAA ferroptosis and inflammation via the NF-κB pathway in vivo.
原创作者：上海雅吉生物科技有限公司
