微质的枯竭导致对眼睛高血压依赖的玻璃眼瘤的易感性增加
Cory A Diemler1,2, Michael MacLean1, Sarah E Heuer1,3
1The Jackson Laboratory, Bar Harbor, ME, United States.
Frontiers in aging neuroscience
|July 17, 2024
概括
减少眼睛的免疫细胞微质细胞,在小鼠中加剧了与玻璃眼相关的神经损伤. 这表明,微质细胞对眼睛高血压和视网膜质细胞损失起着保护作用.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 免疫学 免疫学 免疫学
背景情况:
- 微质细胞是神经退行性疾病的关键参与者,包括青光眼.
- 玻璃眼包括慢性眼睛高血压和视网膜质细胞 (RGC) 损失.
- 微质在青光眼病原体中的特定作用仍在研究中.
研究的目的:
- 为了研究微质在眼神经退行症中的作用.
- 为了确定微质细胞枯竭是否加剧视神经损伤在眼睛高血压的小鼠模型.
主要方法:
- 年龄较大的DBA/2J小鼠,易患眼睛高血压,用CSF1R抗剂 (PLX5622) 治疗,以耗尽微质细胞.
- 评估了眼内压力 (IOP),RGC体和视神经损伤.
- 对照组包括正常压力DBA/2J-Gpnmb小鼠.
主要成果:
- 饮食PLX5622有效地减少了视网膜微质的数量,而没有改变IOP.
- 微质枯竭在正常压力对照中没有造成损伤.
- 与对照组相比,用PLX5622治疗的DBA/2J小鼠的视神经损伤显著增加.
结论:
- 全球微质细胞的减少加剧了眼性神经退行.
- 这些发现表明,微质细胞在眼睛高血压中起着神经保护作用.
- 向微质细胞可能对玻璃眼治疗有复杂的影响.
更多相关视频
12:48In Vivo Dynamics of Retinal Microglial Activation During Neurodegeneration: Confocal Ophthalmoscopic Imaging and Cell Morphometry in Mouse Glaucoma
Published on: May 11, 2015
10.6K
08:30Glaucoma-inducing Procedure in an In Vivo Rat Model and Whole-mount Retina Preparation
Published on: March 12, 2016
13.0K
相关概念视频
Glaucoma: Overview
536
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
536
Open Angle Glaucoma: Treatment
422
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
422
