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Sonodynamic and magnetic targeting platelet-membrane biomimetic platform for glioblastoma therapy

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机构: [1]Chengdu Second Peoples Hosp, Dept Ultrasound Imaging, Chengdu, Peoples R China [2]Publ Hlth Clin Ctr Chengdu, Dept Clin Lab, Chengdu, Peoples R China [3]Sichuan Prov Orthoped Hosp, Dept Funct Examinat, Chengdu, Peoples R China [4]Univ Elect Sci & Technol China, Sichuan Canc Hosp & Inst, Sichuan Clin Res Ctr Canc, Sichuan Canc Ctr,Dept Clin Lab, Chengdu, Peoples R China
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关键词: focused ultrasound platelet microbubble magnetic targeting glioblastoma

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Background Due to the presence of the blood-brain barrier, the efficacy of chemotherapy for glioblastoma has remained suboptimal. Even drugs capable of crossing the BBB, such as temozolomide, exhibit limited therapeutic outcomes owing to insufficient targeting.Methods Here, we developed a platelet membrane-hybridized biomimetic microbubble by loading superparamagnetic iron oxide and temozolomide-embedded polymers, constructing an ultrasound-controlled platelet membrane-inspired magnetic targeting drug delivery platform (ST-PM). Extensive in vitro and in vivo experimental results demonstrate that ST-PM exhibits inhibitory effects on glioblastoma under the combined action of a magnetic field and focused ultrasound.Results The results demonstrated that ST-PM significantly enhanced microbubble stability in vivo while preserving both the magnetic targeting capability of magnetic drugs and the ultrasound-sensitizing properties of microbubbles. In orthotopic tumor mouse models, ST-PM exhibited superior tumor-targeting efficiency and markedly inhibited tumor growth. Furthermore, H&E staining of major organs confirmed the biosafety of ST-PM.Conclusion The platelet membrane enhances the stability of drug-loaded microbubbles, facilitating targeted drug accumulation at the lesion site. These findings propose a novel treatment strategy with clinical translation potential for glioblastoma management.

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基金编号: 2022-YF05-02120-SN

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出版当年[2025]版:
大类 | 3 区 生物学
小类 | 3 区 生物工程与应用微生物 4 区 工程:生物医学
最新[2025]版:
大类 | 3 区 生物学
小类 | 3 区 生物工程与应用微生物 4 区 工程:生物医学
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出版当年[2024]版:
Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q2 ENGINEERING, BIOMEDICAL
最新[2024]版:
Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Q2 ENGINEERING, BIOMEDICAL

影响因子: 最新[2024版] 最新五年平均 出版当年[2024版] 出版当年五年平均 出版前一年[2024版]

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第一作者机构: [1]Chengdu Second Peoples Hosp, Dept Ultrasound Imaging, Chengdu, Peoples R China
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