血栓
组织纤溶酶原激活剂
药物输送
医学
药理学
溶栓
血小板
血小板活化
渗透(HVAC)
炎症
药品
癌症研究
免疫学
心肌梗塞
内科学
材料科学
纳米技术
复合材料
作者
Xingping Quan,Xiao Liang,Yuan‐Fu Ding,Yan Han,Junyan Li,Mengchen Yuan,Yiyang Li,Zhen Yuan,Ruibing Wang,Yonghua Zhao
出处
期刊:ACS Nano
[American Chemical Society]
日期:2023-03-27
卷期号:17 (7): 6519-6533
被引量:19
标识
DOI:10.1021/acsnano.2c11865
摘要
Thrombolysis with tissue plasminogen activator (tPA) provides the most common therapy for ischemic stroke onset within the past 4.5 h. However, enhanced neutrophil infiltration and secondary blood-brain barrier injury caused by tPA administration have limited its therapeutic application, and tPA treatment is often accompanied by hemorrhagic transformation. To overcome the limitations of thrombolysis by tPA, maximize the therapeutic efficacy, and improve the safety, herein, we report a cryo-shocked platelet-based cell-hitchhiking drug delivery system, which consists of cryo-shocked platelet (CsPLT) and reactive oxygen species (ROS)-responsive liposomes loaded with thrombolytic tPA and anti-inflammation drug aspirin (ASA). CsPLT and liposomes were facilely conjugated via host–guest interactions. Under the guidance of CsPLT, it selectively accumulated in the thrombus site and quickly released the therapeutic payloads in response to the high ROS. tPA subsequently exhibited localized thrombolytic activity to suppress the expansion of thrombus, while ASA assisted in the inactivation of reactive astrogliosis, microglial/macrophage, and obstruction of neutrophil infiltration. This cryo-shocked platelet-hitchhiking tPA/ASA delivery system not only improves the thrombus-targeting efficiency of the two drugs for highly localized thrombolytic effects and anti-inflammation actions and platelets inactivation but also provides insights to the development of targeted drug delivery systems for thromboembolic disease treatment.
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