铁亡,NF-κB表达和抗氧化剂失衡在与胆子膜炎相关的早产
Zhonglian Li1, Zixia Zhang2, Ruishi Luo2
1Department of Obstetrics and Gynecology, The First Affiliated Hospital of Dali University, Dali 671000, China; Department of Obstetrics and Gynecology, Dali Bai Autonomous Prefecture People's Hospital, Dali 671000, China.
Journal of reproductive immunology
|October 12, 2025
概括
与胆膜炎相关的早产显示出铁亡标志物增加,由炎症和铁过载驱动. 核因子kappa B (NF-κB) 信号传递与抗氧化防御的减少有关,这表明它可能在这种情况中起作用.
科学领域:
- 细胞死亡机制 细胞死亡机制
- 生殖医学是一种生殖医学.
- 免疫学 免疫学 免疫学
背景情况:
- 铁,一种依赖于铁的细胞死亡,涉及脂质过氧化和抗氧化剂失衡.
- 胆 ?? 膜炎是早产 (PTB) 的重要危险因素.
- 感染可以诱导铁亡,可能涉及核因子kappa B (NF-κB) 信号传递.
研究的目的:
- 为了研究与胆 ?? 膜炎相关的早产 (CA-PTB) 中与铁亡相关的特征.
- 评估核因子kappa B (NF-κB) 信号在CA-PTB中的作用.
- 评估PTB中的抗氧化防御和脂质过氧化.
主要方法:
- 使用流细胞计量量化血细胞因子 (IL-6,IL-1β,TNF-α).
- 通过ELISA和铁素测定,测量了胎盘的马隆迪阿尔海德 (MDA),4-氨酸 (4-HNE),超氧化物失调酶 (SOD) 和铁 (Fe2+).
- 通过免疫组织化学评估NF-κB,谷氨过氧化酶4 (GPX4),核因子红色素2相关因子2 (NRF2) 和血红氧化酶-1 (HO-1) 的胎儿膜表达.
主要成果:
- CA-PTB组表现出炎症性细胞因子和NF-κB表达的升高.
- 在CA-PTB中观察到减少的抗氧化防御 (GPX4,NRF2,HO-1,SOD) 和增加的脂质过氧化产物 (MDA,4-HNE) 和铁负荷 (Fe2+).
- NF-κB与炎症,脂质过氧化和铁负荷正相关,与抗氧化指数负相关.
结论:
- 升高的铁灭特征,NF-κB表达和减少的抗氧化防御是CA-PTB的特征.
- 在CA-PTB中,NF-κB信号似乎与炎症,铁积累和氧化应激有关.
- 需要进一步的研究来证实与感染相关的NF-κB对PTB中铁亡的机制性贡献.
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