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Bim表达影响胆管内皮细胞特征及其对治疗干预的反应

Nader Sheibani^1,2,3, Yong-Seok Song^1,3, Mitra Farnoodian^1,3

¹Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.

International journal of molecular sciences

|October 16, 2024

概括

胆道内皮细胞中的Bim缺乏促进了新血管化,并降低了抗VEGF治疗的有效性. 在Bim缺陷个体中,胆道新血管化 (CNV) 的替代治疗可能是可行的.

科学领域:

眼科医生眼科眼科
细胞生物学细胞生物学
分子生物学分子生物学

背景情况:

胆道新血管化 (CNV) 在老年人群中导致视力丧失.
冠状动脉瘤涉及异常的血管生长和冠状内皮细胞 (ChECs) 中不适当的细胞死亡 (细胞亡).
比姆是一种亲细胞亡的蛋白质,对调节ChEC细胞亡至关重要.

研究的目的:

调查Bim在胆道血管完整性和新血管化中的作用.
确定Bim缺乏如何影响ChEC行为和对抗VEGF治疗的反应.

主要方法:

从野生型和Bim-缺乏 (Bim-/-) 的小鼠中分离出来的ChEC.
评估了ChEC扩散,毛细血管形态发生和基因表达.
利用老鼠激光光凝模型诱导和治疗体内CNV.
评估了抗VEGF治疗和其他潜在治疗方法的疗效.

主要成果:

Bim-/- ChECs表现出增加的VEGF,骨质素,兰特斯/Ccl5和IL6表达.
双缺乏增强了ChEC的扩散和毛细血管形态发生.
抗VEGF治疗在破坏Bim-/- ChECs中的毛细血管形态发生和在体内减轻CNV方面效果不佳.
兰醇,抗CTGF和ABT898在减轻Bim缺乏小鼠中CNV的疗效不同.

结论:

在ChEC中Bim表达影响了针对CNV内在死亡途径的疗法的有效性.
双缺乏症可能需要替代性治疗策略来治疗中枢神经病毒.
了解Bim的作用对于开发有效的CNV疗法至关重要.

关键词:

在Bcl-2家族中.在VEGF中,VEGF是VEGF.与年龄相关的黄斑变性.细胞死亡是细胞死亡.冠状腺新血管化冠状腺新血管化单核细胞 (单核细胞) 是一种单核细胞.

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