铁性菌因体内葡萄球菌黄金菌诱导的乳腺炎而引起,其原因是通过内细胞网膜应激激的自性激活来引起
Lijuan Bao1, Yihong Zhao1, Shiyu Duan1
1Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Erdao District, 126 Sendai Street, Changchun, Jilin Province 130033, China; Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun, Jilin Province 130062, China.
International immunopharmacology
|July 31, 2024
概括
黄金葡萄球菌感染通过激活ER应激和自,引发一种细胞死亡形式铁亡. 向铁亡可能为S. aureus疾病 (如乳腺炎) 提供新的治疗方法.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 病理学 病理学 病理学
背景情况:
- 严重的黄金葡萄球菌 (S. aureus) 感染对健康构成重大风险.
- 铁,一种依赖于铁的细胞死亡,在S. aureus的发病过程中的作用仍然在很大程度上是未知的.
研究的目的:
- 为了研究铁死在S. aureus诱导的细胞死亡中的参与和机制.
- 探索向铁亡的潜力,以治疗与黄金色杆菌相关的疾病.
主要方法:
- 使用小鼠乳腺炎模型和乳腺上皮细胞 (MMECs) 进行体内和体外研究.
- 评估细胞死亡,马隆迪化物 (MDA) 和谷氨酸 (GSH) 水平.
- 研究了PERK-eIF2α-ATF4-CHOP通路,自和活性氧物种 (ROS) 在铁死中的作用.
主要成果:
- 在MMECs和in vivo中,S. aureus感染诱导了剂量依赖的铁亡.
- 铁灭抑制剂 (Fer-1,DFO) 显著降低了黄金色球菌诱导的细胞死亡.
- 黄金菌激活了ROS-ER压力自轴,导致费里丁降解,铁失调和铁.
结论:
- 铁死在S. aureus诱导的乳腺炎中通过内质网膜 (ER) 压力介导的自中发挥着关键作用.
- ROS-ER压力自途径调节了MMECs中S. aureus诱导的铁亡.
- 向铁亡是一种潜在的治疗策略,用于S. aureus相关的疾病.
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