A pure recombinant staphylokinase-hirudin fusion protein (SFH) was obtained by recombinant genetic engineering and purification techniques. The thrombolytic and anticoagulant activities of SFH were investigated using in vitro coagulation models and chromogenic assays. The results showed that intact SFH had targeted thrombolytic activity, and gained anticoagulant activity when cleaved by FXa. In addition, we investigated the pharmacodynamics of SFH in vivo using a variety of animal models, including a rat inferior vena cava thrombosis model, a rat coronary thrombosis model, a rabbit carotid artery thrombosis model and a canine coronary thrombosis model. We found that SFH had an obvious thrombolytic effect and could prevent and reduce re-embolization after thrombolysis and reduce the serious bleeding side effects caused by the combination of thrombolytic and anticoagulant drugs. The results suggest that SFH can be used for thrombolytic therapy in thromboembolic diseases.

Small

Engineered Microrobots for Targeted Delivery of Bacterial Outer Membrane Vesicles (OMV) in Thrombus Therapy

Article

作者: Tang, Menghuan ; Chen, Qiwei ; Wu, Song ; Jiao, Yanxiao ; Li, Yangyang ; Cong, Zhaoqing ; Thongpon, Phonpilas ; Xie, Leiming

AbstractIn the realm of thrombosis treatment, bioengineered outer membrane vesicles (OMVs) offer a novel and promising approach, as they have rich content of bacterial‐derived components. This study centers on OMVs derived from Escherichia coli BL21 cells, innovatively engineered to encapsulate the staphylokinase‐hirudin fusion protein (SFH). SFH synergizes the properties of staphylokinase (SAK) and hirudin (HV) to enhance thrombolytic efficiency while reducing the risks associated with re‐embolization and bleeding. Building on this foundation, this study introduces two cutting‐edge microrobotic platforms: SFH‐OMV@H for venous thromboembolism (VTE) treatment, and SFH‐OMV@MΦ, designed specifically for cerebral venous sinus thrombosis (CVST) therapy. These platforms have demonstrated significant efficacy in dissolving thrombi, with SFH‐OMV@H showcasing precise vascular navigation and SFH‐OMV@MΦ effectively targeting cerebral thrombi. The study shows that the integration of these bioengineered OMVs and microrobotic systems marks a significant advancement in thrombosis treatment, underlining their potential to revolutionize personalized medical approaches to complex health conditions.

100 项与注射用重组葡激酶-水蛭素融合蛋白(Academy of Military Medical Sciences) 相关的药物交易

登录后查看更多信息

研发状态

10 条进展最快的记录,

后查看更多信息

适应症	最高研发状态	国家/地区	公司	日期
血栓栓塞	临床申请	中国	中国人民解放军军事科学院军事医学研究院	2013-04-03
血栓栓塞	临床申请	中国	武汉光谷人福生物医药有限公司	2013-04-03