细胞染色体b5还原酶通过FAD在巨细胞中调节IL-1β的产生
Jian Fu1, Zhihua Liu1, Hangchao Zhang1
1State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Laboratory of Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou, China.
Cell death & disease
|October 21, 2025
概括
细胞染色体-b5减少酶5 (CYB5R5) 通过减少互白素-1β的产生来控制巨细胞炎症. 这一发现为炎症性疾病提供了新的治疗点.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 细胞染色体-b5减少酶 (CYB5Rs) 对于细胞的氧化还原平衡至关重要,并与炎症疾病的发病有关.
- 在巨细胞中CYB5R5的特定功能尚不清楚,需要进一步研究.
研究的目的:
- 阐明CYB5R5在调节巨细胞炎症中的作用.
- 研究CYB5R5影响巨细胞炎症反应的潜在分子机制.
主要方法:
- 研究了CYB5R5对M1巨细胞中互白素-1β的产生的影响.
- 检查了CYB5R5,flavin adenine dinucleotide (FAD) -lysine demethylase1 (LSD1) 信号传导和补充成分1,q子成分 (C1q) 编码基因的组合素脱甲基化之间的相互作用.
- 在小鼠中利用骨髓细胞特异性Cyb5r5枯竭来评估脂多糖 (LPS) 诱导的败血症的炎症反应.
主要成果:
- 发现CYB5R5可以抑制M1巨细胞中白内素-1β的产生.
- CYB5R5增强了FAD-氨酸脱甲基酶1 (LSD1) 信号传递,导致C1q编码基因的基因脱甲基化,并减少了NLRP3炎症酶组合.
- 在小鼠中,肌细胞中Cyb5r5的枯竭导致LPS诱导的败血症期间炎症反应加剧.
结论:
- 通过代谢和表观遗传重编程,CYB5R5减弱了M1巨的两极分化.
- 通过调节巨细胞炎症,CYB5R5在败血症中起着保护作用.
- CYB5R5代表了巨细胞介导炎症疾病的潜在治疗标.
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