Targeted H2S-Mediated Gas Therapy with pH-Sensitive Release Property for Myocardial Ischemia-Reperfusion Injury by Platelet Membrane

被引:2
作者
Liu, Lin [1 ,2 ]
Yao, Yucen [2 ,3 ]
Liu, Yang [1 ,2 ]
Hong, Bingrong [1 ,2 ]
Li, Ziqing [1 ,2 ]
Chen, Xuejun [1 ,2 ]
Zhang, Yaofeng [1 ]
Fu, Hongbo [1 ]
Yang, Degong [2 ,4 ]
Yang, Chunrong [1 ,2 ]
机构
[1] Shantou Univ, Affiliated Hosp 2, Dept Pharm, Med Coll, Shantou 515041, Peoples R China
[2] Shantou Univ, Dept Pharm, Med Coll, Shantou 515041, Peoples R China
[3] Jiamusi Univ, Coll Pharm, Jiamusi 154007, Peoples R China
[4] Shantou Univ, Affiliated Hosp 1, Dept Pharm, Dept Dermatol,Med Coll, Shantou, Peoples R China
基金
中国国家自然科学基金;
关键词
HYDROGEN-SULFIDE; INFARCTION; ACCUMULATION; INFLAMMATION; MONOCYTES; SELECTIN;
D O I
10.34133/bmr.0061
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Management of myocardial ischemia-reperfusion injury (MIRI) in reperfusion therapy remains a major obstacle in the field of cardiovascular disease, but current available therapies have not yet been achieved in mitigating myocardial injury due to the complex pathological mechanisms of MIRI. Exogenous delivery of hydrogen sulfide (H2S) to the injured myocardium can be an effective strategy for treating MIRI due to the multiple physiologic functions of H2S, including anti-inflammatory, anti-apoptotic, and mitochondrial protective effects. Here, to realize the precise delivery and release of H2S, we proposed the targeted H2S-mediated gas therapy with pH-sensitive release property mediated by platelet membranes (PMs). In this study, a biomimetic functional poly(lactic-co-ethanolic acid) nanoparticle (RAPA/JK-1-PLGA@PM) was fabricated by loading rapamycin (RAPA; mTOR inhibitor) and JK-1 (H2S donor) and then coated with PM. In vitro observations were conducted including pharmaceutical evaluation, H2S release behaviors, hemolysis analysis, serum stability, cellular uptake, cytotoxicity, inhibition of myocardial apoptosis, and anti-inflammation. In vivo examinations were performed including targeting ability, restoration of cardiac function, inhibition of pathological remodeling, and anti-inflammation. RAPA/JK-1-PLGA@PM was successfully prepared with good size distribution and stability. Utilizing the natural infarct-homing ability of PM, RAPA/JK-1-PLGA@PM could be effectively targeted to the damaged myocardium. RAPA/JK-1-PLGA@PM continuously released H2S triggered by inflammatory microenvironment, which could inhibit cardiomyocyte apoptosis, realize the transition of pro-inflammation, and alleviate myocardial injury demonstrated in hypoxia/reoxygenation myocardial cell in vitro. Precise delivery and release of H2S attenuated inflammatory response and cardiac damage, promoted cardiac repair, and ameliorated cardiac function proven in MIRI mouse model in vivo. This research outlined the novel nanoplatform that combined immunosuppressant agents and H2S donor with the pH-sensitive release property, offering a promising therapeutic for MIRI treatment that leveraged the synergistic effects of gas therapy.
引用
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页数:15
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