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在炎症性应激下,塔克罗利斯调节视网膜上皮细胞中的PI3K AKT mTOR通路

Aleksandra Kiełbasińska^1,2, Beniamin Oskar Grabarek^3,4, Dominika Janiszewska-Bil^5,3,6

¹Department of Opthalmology, University Clinical Center named after Prof. K. Gibiński of the Medical University of Silesia in Katowice, 40-514, Katowice, Poland. aleksandrakielbasinska96@gmail.com.

Scientific reports

|October 21, 2025

概括

塔克罗利马斯可以通过调节人类视网膜色素上皮细胞中的PI3K/AKT/mTOR通路来治疗视网膜纤维化. 这种免疫抑制药物抑制纤维基因并恢复微RNA的表达,为增殖性玻璃色素蛋白病变提供了一种新的策略.

科学领域:

眼科医生眼科眼科
分子生物学分子生物学
免疫学免疫学免疫学

背景情况:

人类视网膜色素上皮细胞 (H-RPE) 通过炎症和纤维化驱动增殖性玻璃色素病变 (PVR).
PI3K/AKT/mTOR通路对于H-RPE细胞存活,增殖和PVR病变发生过程中的矩阵重塑至关重要.
塔克罗利斯是一种免疫抑制剂,显示出潜在的抗纤维素作用.

研究的目的:

为了研究塔克罗利斯对PI3K/AKT/mTOR通路及其相关微RNA在脂多糖 (LPS) 刺激的H-RPE细胞中的作用.
评估tacrolimus作为治疗视网膜纤维化和PVR的治疗剂的潜力.

主要方法:

用LPS和/或tacrolimus对待H-RPE细胞.
使用微阵列进行转录基因分析,然后进行RT-qPCR和ELISA验证.
微RNA分析和蛋白质与蛋白质相互作用网络分析 (STRING数据库).

主要成果:

LPS诱导了炎症和纤维化基因的显著上调,而塔克罗利斯反转或减弱了这些基因.
微阵列分析确定了38个PI3K/AKT/mTOR相关的mRNA的差异表达,包括关键的纤维化和增殖基因.
塔克罗利斯调节了特定的微RNA (hsa-miR-27a-5p,miR-29a-3p,miR-1271-5p) 并逆转了LPS诱导的变化.

结论:

塔克罗利斯通过调节炎症H-RPE细胞中的PI3K/AKT/mTOR-miRNA轴来证明视网膜纤维化的治疗潜力.
塔克罗利斯抑制了关键的纤维化和增殖基因,并恢复了调节性微RNA的表达.
这项研究表明,塔克罗利斯是控制H-RPE驱动PVR重塑的有希望的策略.

关键词:

皮质 - 介质细胞过渡.在H-RPE细胞中.在PI3K/AKT/mTOR路径中.在PVR中,PVR是PVR.视网膜纤维化视网膜纤维化塔克罗利慕斯可以使用.

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