响应MMP-9的水凝通过抑制内皮细胞的铁亡来促进糖尿病伤口愈合
Chuanlu Lin1,2, Yiqiang Hu1,2, Ze Lin1,2
1Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Bioactive materials
|October 10, 2024
概括
丁甲 (CA) 通过激活TRPA1通道来抑制糖尿病伤口中的铁亡. 这种新的水凝配方 (CA@HA-Gel) 通过减少细胞死亡来促进糖尿病伤口愈合.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 铁亡,一种调节的细胞死亡,显著影响糖尿病伤口的进展.
- 向铁灭症为糖尿病伤口治疗提供了一个有希望的治疗途径.
研究的目的:
- 为了研究金甲 (CA) 的潜力,一个TRPA1激动剂,在减轻糖尿病伤口中的ferroptosis.
- 开发和评估一种MMP-9响应的水凝,用于持续向糖尿病伤口部位输送CA.
主要方法:
- 在体外评估高葡萄糖诱导的内皮细胞铁和CA的抑制作用.
- 涉及TRPA1激活,Ca2+流入,CaMKII和Nrf2通路的机制研究.
- 开发和体内测试可注射混合水凝 (CA@HA-Gel) 用于在糖尿病伤口中持续释放CA.
主要成果:
- 高葡萄糖诱导内皮细胞铁,损害细胞功能.
- CA治疗抑制了铁灭,增强了内皮细胞的迁移,增殖和管形成.
- CA@HA-Gel有效地提供了CA,抑制了铁亡,并显著加快了糖尿病伤口愈合.
结论:
- 通过TRPA1激活,CA通过调节CaMKII/Nrf2/GPX4通路有效抑制内皮细胞铁亡.
- 开发的CA@HA-Gel水凝在治疗与铁死相关的疾病,特别是糖尿病性伤口方面具有显著的治疗潜力.
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