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文章编号: 1672-6987(2025)06-0012-10 DOI: 10.16351/j.1672-6987.2025.06.002
孟晓飞, 叶素娟*(青岛科技大学 化学与分子工程学院, 山东 青岛 266042)
摘要: 采用荧光成像技术,合成金纳米粒子(AuNP)为载体,功能核酸分子和三苯基膦(TPP)为靶向配体进行可控自组装,制备双靶向双响应纳米载药探针。通过特异性识别细胞内特征分子,引发药物分子的释放和光热效应的产生,实现化学-光热方法精准协同治疗。原位实验结果表明,单一化学或光热疗法细胞凋亡率分别为25%和17%,而协同方法细胞凋亡结果显示为55%,该结果大于单一治疗的两者之和,证明探针具有增强的协同治疗作用。该方法实现了双信号成像指导的协同靶向诊疗,为重大疾病的预防性干预和治疗提供灵敏、快速、便捷的新的诊疗一体化工具。
关键词: TPP; 双信号成像; miRNA; 药物释放
中图分类号: O 652.1 文献标志码: A
引用格式: 孟晓飞, 叶素娟. 双靶向双信号开关DNA纳米探针的构建及其在精准化学-光热协同治疗的应用[J]. 青岛科技大学学报(自然科学版), 2025, 46(6): 12-21.
MENG Xiaofei, YE Sujuan. Construction of dual-targeted dual signal-switching DNA nanoprobes and application of precise chemical-photothermal synergistic therapy[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2025, 46(6): -.
Construction of Dual-Targeted Dual Signal-Switching DNA Nanoprobes and Application of Precise Chemical-Photothermal Synergistic Therapy
MENG Xiaofei, YE Sujuan(College of Chemisty and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: A dual-targeted and double-response drug release nanoprobes was fabricated guided by fluorescence optical imaging technology. A Au nanoparticles (AuNP) is synthesized and used as carrier, functional nucleic acid molecules and triphenylphosphine (TPP) as the targeting ligand, the drug-release and photothermal effect was triggered through the specific recognition of intracelluar characteristic molecule. Under near-infrared irradiation (NIR), the ICG is activated to convert light energy into heat energy to kill tumor cells. As shown in vivo experiments, cell apoptosis rates were 25% and 17% for chemical or photothermal therapy alone, while 55% for combination therapy, which was greater than the sum of the two for single therapy, proving enhanced synergistic therapeutic effect, good photothermal properties and photothermal stability. This method realizes integrated targeted diagnosis and treatment guided by highly sensitive molecular recognition, dual-signal imaging, and providing a new treatment tool for preventive intervention and treatment of serious diseases.
Key words: TPP; dual-signal imaging; miRNA; drug release
收稿日期: 2024-11-18
基金项目: 国家自然科学基金项目 (22274085).
作者简介: 孟晓飞(1997—),女,硕士研究生. * 通信联系人.