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对年轻与老角膜角膜内皮细胞的转录组比较

Jin Sun Hwang^1,2, Je Hyun Seo³, Hyeon Jung Kim^1,2

¹Department of Ophthalmology, Hallym University College of Medicine, Hallym University Medical Center, 1 Shingil-ro, Youngdeungpo-gu, Seoul, 07441, Korea.

Scientific reports

|December 29, 2024

概括

衰老的角膜内皮细胞显示出显著的转录组差异. 翻译启动和Hippo YAP信号传递等关键路径被改变,为保持角膜清晰度和功能提供了目标.

科学领域:

眼科医生眼科眼科
分子生物学分子生物学
老年学是指老年学的学科.

背景情况:

角膜内皮细胞 (CECs) 对于保持角膜透明度和水分来说至关重要.
细胞衰老会影响CEC功能,影响视力.
了解CEC中与年龄相关的转录组变化对于开发干预措施至关重要.

研究的目的:

为了研究人类角膜内皮细胞的转录组中与年龄相关的差异.
确定受CEC衰老影响的关键生物途径.
为了发现与年龄相关的角膜内皮功能障碍的潜在治疗点.

主要方法:

从年轻和老年捐赠者培养的角膜内皮细胞.
下一代测序 (NGS) 用于转录基因分析.
使用Metascape进行生物信息分析以进行途径丰富.

主要成果:

与年轻CEC相比,在老年CEC中观察到显著的基因表达差异 (共568个基因).
老年CEC的下调基因与真核转化启动,整合器复合体和Hippo YAP信号相关.
老年CEC中的上调基因与内膜系统组织,核受体,细胞,过渡金属离子运输和糖蛋白生物合成有关.

结论:

衰老显著改变了CEC转录组,影响了基本的细胞过程.
确定的特定途径为治疗策略提供了潜在的目标,以应对与年龄相关的视力障碍.
这项研究提供了对角膜内皮细胞衰老的分子机制的见解.

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