Liu Min, Liu Siyuan, Bai Yafan, Zhang Mingru, Zhang Duo, Sun Ruijin, Wang Guyan, Ma Yulong
Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong 226001, China.
Biomater Res. 2024 Dec 3;28:0108. doi: 10.34133/bmr.0108. eCollection 2024.
Ischemic stroke poses a global health challenge, necessitating effective therapeutic interventions given the limited time window for thrombolytic therapy. Here, we present Res@LDH, a novel nanohybrid therapeutic agent boasting a dual reactive oxygen species scavenging efficiency of approximately 90%. Comprising Ge-containing layered double hydroxide nanosheets (Ge-LDH) as a drug nanocarrier and resveratrol as a neuroprotective agent, Res@LDH demonstrates enhanced permeability across the blood-brain barrier, ensuring high biocompatibility and stability. We explored the potential of Res@LDH in mitigating oxidative stress injury induced by middle cerebral artery occlusion and reperfusion in mice, as well as HO-induced cytotoxicity in HT22 cells. Our experiments unveil Res@LDH's capacity to ameliorate neurological deficits, reduce the infarction volume, mitigate blood-brain barrier disruption, exhibit a robust antioxidant activity, and dampen the release of proinflammatory cytokines. Moreover, Res@LDH treatment markedly attenuates microglial and astrocytic activation. Leveraging a pioneering synthetic approach harnessing Ge-LDH and resveratrol, Res@LDH emerges as a promising strategy for addressing ischemia-reperfusion injury, offering a concise solution to current therapeutic challenges.
缺血性中风对全球健康构成挑战,鉴于溶栓治疗的时间窗口有限,需要有效的治疗干预措施。在此,我们展示了Res@LDH,一种新型纳米杂合治疗剂,其具有约90%的双重活性氧清除效率。Res@LDH由含锗层状双氢氧化物纳米片(Ge-LDH)作为药物纳米载体和白藜芦醇作为神经保护剂组成,表现出增强的血脑屏障通透性,确保了高生物相容性和稳定性。我们探讨了Res@LDH在减轻小鼠大脑中动脉闭塞和再灌注诱导的氧化应激损伤以及HO诱导的HT22细胞细胞毒性方面的潜力。我们的实验揭示了Res@LDH改善神经功能缺损、减少梗死体积、减轻血脑屏障破坏、表现出强大的抗氧化活性以及抑制促炎细胞因子释放的能力。此外,Res@LDH治疗显著减轻小胶质细胞和星形胶质细胞的活化。利用一种利用Ge-LDH和白藜芦醇的开创性合成方法,Res@LDH成为解决缺血再灌注损伤的一种有前景的策略,为当前的治疗挑战提供了一个简洁的解决方案。