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佩奥尼弗洛林减轻了TGF-β2介导的细胞外基质重塑和氧化应激,在人类的脊髓网状细胞中

Yongmei Hu¹, Kui Ge¹, Yan Du²

¹Department of Ophthalmology, The First People's Hospital of Jiangxia District, Wuhan, No.1 Wenhua Avenue, Zhifang Street, Jiangxia District, Wuhan, 430200, China.

International ophthalmology

|May 25, 2024

概括

佩奥尼佛林 (PAE) 通过抑制TGF-β2信号传递,降低了状网细胞中的细胞外基质沉积和氧化应激. 这表明PAE可能是治疗青光眼的潜在疗法.

科学领域:

眼科医生眼科眼科
细胞生物学细胞生物学
药理学药理学是指药理学的学科.

背景情况:

转化生长因子-β2 (TGF-β2) 是初级开角玻璃眼病原体的关键细胞因子.
佩奥尼佛洛林 (PAE) 具有抗氧化,抗纤维和抗炎性质,可以保护眼细胞.
这项研究研究了PAE在TGF-β2介导的细胞外基质 (ECM) 在状网 (TM) 细胞的重塑中的作用.

研究的目的:

为了确定PAE对TGF-β2诱导的TGF-β2诱导的细胞外基质沉积在人体脊髓网 (HTM) 细胞中的作用.
调查潜在的机制,包括氧化应激和Smad2/3信号通路.

主要方法:

人类TM细胞被TGF-β2和PAE治疗,TGF-β受体抑制剂作为阳性对照.
使用CellROX绿色染料测量了细胞内活性氧物种 (ROS).
西部涂抹,RT-qPCR和免疫光测试评估了信号分子,ECM组件表达 (原Iα1,原4α1,CTGF) 和F-actin应激纤维.

主要成果:

在HTM细胞中,PAE显著减弱了TGF-β2诱导的氧化应激和Smad2/3信号激活.
PAE抑制了由TGF-β2.2诱导的原蛋白1α1,原蛋白4α1和CTGF的上调.
PAE降低了TGF-β2介导的原I/IV表达和F-actin应激纤维的形成.

结论:

佩奥尼佛洛林有效地减轻TGF-β2诱导的细胞外基质沉积和状网状细胞中的氧化应激.
该机制涉及Smad2/3信号通路的失活.
通过准ECM重塑,PAE显示出作为治疗眼的治疗剂的潜力.

关键词:

细胞外基质沉积的细胞外基质沉积.佩奥尼弗洛林是一种.主要的开放角度光眼 (Glaucoma)斯马德2/3 在线观看在TGF-β2中.

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