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补充因子B的抑制或删除不足以防止牛眼的小鼠模型中的神经退行

Katie Dolan¹, Sha-Mei Liao¹, Maura Crowley¹

¹Ophthalmology, Novartis BioMedical Research (NBR), Cambridge, Massachusetts.

Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics

|July 8, 2024

概括

补充因子B (FB) 在人类青光眼和小鼠模型中被上调. 然而,抑制或删除FB并没有在小鼠模型中防止视力损失,这表明它可能不是青光眼进展的关键驱动因素.

科学领域:

眼科医生眼科眼科
免疫学免疫学免疫学
神经科学是一个神经科学.

背景情况:

经典的补充路径与玻璃眼病原发生有关.
替代补充通路,特别是补充因子B (FB) 在青光眼中的作用尚不清楚.

研究的目的:

为了研究补充因子B (FB) 在人类玻璃眼眼组织中的表达.
评估FB抑制和删除在眼睛高血压诱导的青光眼的小鼠模型中的治疗潜力.

主要方法:

使用RNAscope和TaqMan测定方法,对来自青光眼患者和对照组的人类眼组织进行了 *CFB* mRNA 分析.
通过光聚合氨酸糖甲基酸 (HAGM) 建立了眼睛高血压的小鼠模型.
使用口服抑制剂 (ED-79-GX17) 实现了FB抑制,并在*Cfb*淘汰赛小鼠中研究了FB删除.

主要成果:

*CFB* mRNA在人类大眼睛的黄斑神经视网膜和视神经头部上调.
在HAGM小鼠模型中, *Cfb* mRNA也被上调.
虽然FB抑制和删除降低了补体水平,但它们并没有防止视网膜质细胞 (RGC) 或轴突损失.

结论:

尽管对*Cfb*表达和替代途径激活的升调,但在这种特定的小鼠绿眼模型中,FB可能不是RGC损失的重要贡献者.
需要进一步的研究来确定这些发现与人类绿眼病进展的相关性.

关键词:

在FB上,FB就是FB.补充补充补充补充补充补充补充.玻璃眼 glaucoma 玻璃眼玻璃眼玻璃眼玻璃眼这里是鼠标鼠标鼠标鼠标鼠标鼠标.神经保护神经保护药理动力学/药理动力学 (PK/PD) 的研究.

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