在新血管性眼病中,Ref-1过度表达,并且可以通过新型抑制剂向
Anbukkarasi Muniyandi1,2, Gabriella D Hartman2,3,4, Kamakshi Sishtla1,2,5
1Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA.
Angiogenesis
|January 5, 2025
概括
减少氧化因子-1 (Ref-1/APE1) 对于眼睛新血管化至关重要. 通过APX2009抑制Ref-1显示出治疗新血管与年龄相关的黄斑变性 (nAMD) 的治疗潜力.
科学领域:
- 眼科医生 眼科 眼科
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 降解氧化因子-1 (Ref-1/APE1) 是一种对氧化反应敏感的转录因子激活剂,涉及到眼部新血管化.
- 关键的神经血管眼病,如神经血管与年龄相关的黄斑变性 (nAMD),涉及炎症和血管生成,这些过程可能由Ref-1调节.
- 以前的研究表明Ref-1在眼内皮细胞生长和胆道新血管化 (CNV) 中的作用.
研究的目的:
- 进一步研究Ref-1在新血管眼病中的作用.
- 在眼部新血管化模型中评估抑制Ref-1的氧化还原功能的治疗潜力.
主要方法:
- 在人类nAMD和小鼠新血管化模型 (激光诱导的CNV,Vldlr-/-SRN) 中量化Ref-1表达.
- 使用NMR和对接,证明Ref-1与抑制剂APX2009的相互作用.
- 在体内对内皮细胞和体内对L-CNV和SRN的小鼠模型中的活体中评估APX2009的疗效.
主要成果:
- 人类nAMD和小鼠新血管化模型中Ref-1的表达很高.
- 小分子抑制剂APX2009有效地阻断了内皮细胞中的血管性特征.
- 内APX2009改善了激光诱导的CNV,而全身APX2009降低了Vldlr-/-小鼠的脑下新血管化和下调CA9表达.
结论:
- Ref-1的氧化还原功能是眼球血管生成的关键调节者.
- 通过APX2009证明的Ref-1的抑制,对于治疗nAMD和其他神经血管眼睛疾病具有显著的治疗潜力.
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