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TNFRSF1B信号阻塞保护气道上皮细胞免受氧化应激的影响

Javier Checa¹, Pau Fiol¹, Marta Guevara¹

¹Immune-Inflammatory Processes and Gene Therapeutics Group, Genes, Disease and Therapy Program, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, 08908 L'Hospitalet de Llobregat, Spain.

Antioxidants (Basel, Switzerland)

|March 28, 2024

概括

向瘤亡因子受体2 (TNFR2) 途径可能会保护囊性纤维化 (CF) 呼吸道上皮细胞免受氧化应激. 用乙太来阻断这种途径改善了细胞活力,为CF肺部疾病提供了潜在的治疗策略.

科学领域:

肺部医学肺部医学
细胞生物学细胞生物学
免疫学免疫学免疫学

背景情况:

囊性纤维化 (CF) 肺部病理包括由于未解决的炎症和氧化应激导致的呼吸道逐渐破坏.
在CF中中性粒细胞释放活性氧物种 (ROS),损害上皮细胞并加剧氧化应激.
之前的查发现瘤坏死因子受体超级家族1B成员 (TNFRSF1B;TNFR2) 可能参与CF细胞中氧化应激敏感性.

研究的目的:

调查TNFRSF1B在对抗氧化应激的上皮细胞保护中的作用.
评估阻断CF气道上皮细胞中淋巴毒素-α (LTA) -TNFR2信号轴的治疗潜力.

主要方法:

证明了TNFRSF1B转录突破在氧化应激下对上皮细胞的保护作用.
使用抗瘤亡因子 (TNF) 生物药物以阻止TNFR信号传递.
进行了生物信息分析,整合了之前的RNA干扰 (RNAi) 查数据.

主要成果:

抑制TNFRSF1B增强了对抗氧化应激的上皮细胞保护.
阻断TNFR信号与etanercept显著增加了暴露于氧化剂的气道上皮细胞的活力.
生物信息分析证实了TNFRSF1B和其他TNF通路基因在氧化应激诱导的上皮细胞死亡中的参与.

结论:

LTα3-TNFR2轴与CF中氧化应激诱导的上皮细胞死亡有关.
抑制LTα3-TNFR2通路是一种有前途的治疗策略,可以保护CF患者的呼吸道上皮.
针对这一轴可以减轻由CF中反复感染和炎症循环引起的氧化损伤.

关键词:

在RNAi敲击下降.这就是TNFRSF1B.呼吸道上皮细胞囊性纤维化症是什么氧化应激是一种氧化应激.

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