Trifluoromethyl-pyrrolidone phthalocyanine nanoparticles for targeted lipid droplet imaging and in vitro photodynamic therapy in breast cancer cells
文献类型： 外文期刊
作者： Chen, Xiuqin 1 ; Chen, Guizhi 1 ; Dong, Shiqing 3 ; Qiu, Liting 1 ; Qiu, Ruoyi 1 ; Han, Xiangyu 1 ; Wang, Zihui 1 ; Wang, Kun 3 ; Peng, Yiru 1 ;
作者机构： 1.Fujian Normal Univ, Coll Chem & Mat, Fujian Prov Key Lab Adv Mat Oriented Chem Engn, Fujian Prov Key Lab Polymer Mat, Fuzhou, Peoples R China
2.Fujian Acad Agr Sci, Inst Plant Protect, Fuzhou, Peoples R China
3.Fujian Normal Univ, Key Lab Optoelect Sci & Technol Med, Prov Key Lab Photon Technol, Minist Educ, Fuzhou, Peoples R China
关键词： Pyrrolidone; Trifluoromethylation; Phthalocyanine; Lipid droplet; Two-photon imaging; Photodynamic therapy
期刊名称：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY （ 影响因子：4.6； 五年影响因子：4.3 ）
ISSN： 1386-1425
年卷期： 2025 年 325 卷
页码：
收录情况： SCI
摘要： Lipid droplets (LDs) serve as vital subcellular organelles, crucial for the maintenance of lipid and energy homeostasis within cells. Their visualization is of significant value for elucidating the intricate interactions between LDs and other cellular organelles. Despite the importance of LDs, the literature on the utilization of phthalocyanine-based photosensitizers for targeted LD imaging and two-photon imaging-guided photodynamic therapy (PDT) remains sparse. In this study, we have designed and synthesized trifluoromethyl-pyrrolidone silicon phthalocyanine (PyCF3SiPc). 3 SiPc). To enhance the water solubility of PyCF3SiPc 3 SiPc and improve its tumor cells accumulation, we employed 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(poly(ethylene sn-glycero-3-phosphoethanolamine-N-[methoxy(poly(ethylene glycol))-2000] (DSPE-mPEG2000) 2000 ) as a nanocarrier, thereby formulating DSPE@PyCF3SiPc nanoparticles. Our in vitro experiments in MCF-7 cells demonstrated that DSPE@PyCF3SiPc 3 SiPc selectively targets and visualizes LDs, offering a reliable tool for tracking their dynamic movement. Moreover, DSPE@PyCF3SiPc 3 SiPc demonstrates considerable phototoxicity against MCF-7 cells subjected to PDT underscoring its potential as an effective therapeutic agent. In conclusion, DSPE@PyCF3SiPc 3 SiPc presents itself as a promising novel probe for the dual purpose of monitoring the dynamic movement of LDs and guiding imaging-assisted PDT. The development of this nanoparticle system not only advances our understanding of LD biology but also paves the way for innovative therapeutic strategies in oncology.
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