用定制的广场光显微镜对结膜杯细胞进行体内非接触成像
Yushuang Liu1, Zhengyu Duan1, Zhongzhou Luo1
1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Centre for Ocular Diseases, Sun Yat-Sen University, Guangzhou, China.
Ophthalmology science
|March 25, 2025
概括
这项研究开发了一种非接触式光显微镜,用于在体内对结膜杯细胞 (CGC) 的成像. 该方法在干眼疾病模型中成功监测了CGC变化,在疾病期间显示细胞密度降低.
科学领域:
- 眼科医生 眼科 眼科
- 细胞生物学 细胞生物学
- 生物医学成像技术 生物医学成像技术
背景情况:
- 结膜杯细胞 (CGCs) 对于眼睛表面的健康至关重要,产生粘膜.
- 目前用于评估眼部疾病中CGC的方法是侵入性的和主观的.
- 需要使用非侵入性成像技术来研究CGC动态.
研究的目的:
- 开发一种非接触式,细胞分辨率的光显微镜,用于体内CGC成像.
- 在干眼病 (DED) 的小鼠模型中研究CGC动态.
主要方法:
- 定制了一种高分辨率的非接触式广场光显微镜 (WFFM),采用全焦算法.
- 使用甲 (BAC) 暴露建立了一个DED小鼠模型.
- 使用WFFM在体内评估CGC变化,并与功能和粘素测定相关.
主要成果:
- 该WFFM系统实现了1微米的细胞分辨率和1.4mm × 1.4mm的视野.
- 在小鼠和子的曲结膜表面的单个CGC和集群的 in vivo成像验证.
- 在DED小鼠中观察到CGC密度和面积比的显著减少,在去除BAC后恢复.
结论:
- 定制的WFFM提供了一种安全而准确的方法,用于CGCs的体内细胞成像.
- 这种技术使得在像DED.这样的眼睛表面疾病中可以持续监测CGC病理生理学.
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