The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Chongqing Key Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing 400016, China.
Biomater Sci. 2024 Jun 11;12(12):3163-3174. doi: 10.1039/d4bm00149d.
The current treatment for venous thrombosis during pregnancy is ineffective, primarily, due to the unique physiology of pregnant women. Most clinical medications have fetal side effects when they circulate in the body. We first synthesized nanomaterials (Cur-PFP@PC) using poly lactic-co-glycolic acid (PLGA) as the base material, with curcumin (Cur) and perfluoropentane (PFP) as core components. Subsequently, we encapsulated Cur-PFP@PC into the platelet membrane to synthesize P-Cur-PFP@PC. Under ultrasound guidance, in combination with low-intensity focused ultrasound (LIFU), PFP underwent a phase change, resulting in thrombolysis. The generated microbubbles enhanced the signal impact of ultrasound, and P-Cur-PFP@PC showed better performance than Cur-PFP@PC. P-Cur-PFP@PC can target thrombosis treatment, achieve visually and precisely controlled drug release, and repair damaged blood vessels, thus avoiding the adverse effects associated with traditional long-term drug administration.
目前针对孕妇静脉血栓的治疗方法效果不佳,主要是因为孕妇具有独特的生理特点。大多数临床药物在体内循环时会对胎儿产生副作用。我们首先使用聚乳酸-羟基乙酸共聚物(PLGA)作为基础材料合成了纳米材料(Cur-PFP@PC),以姜黄素(Cur)和全氟戊烷(PFP)作为核心成分。随后,我们将 Cur-PFP@PC 封装到血小板膜中,合成了 P-Cur-PFP@PC。在超声引导下,结合低强度聚焦超声(LIFU),PFP 发生相变,引发溶栓作用。生成的微泡增强了超声的信号影响,并且 P-Cur-PFP@PC 比 Cur-PFP@PC 表现出更好的性能。P-Cur-PFP@PC 可以靶向治疗血栓,实现可视化和精确控制药物释放,并修复受损的血管,从而避免传统长期药物治疗带来的不良影响。