Affiliation:
1. Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology the NMPA and State Key Laboratory of Respiratory Disease the Fifth Affiliated Hospital and School of Pharmaceutical Sciences Guangzhou Medical University Guangzhou 511436 China
2. Marshall Laboratory of Biomedical Engineering International Cancer Center Laboratory of Evolutionary Theranostics (LET) School of Biomedical Engineering Shenzhen University Health Science Center Shenzhen 518060 China
3. Breast Tumor Center Sun Yat‐Sen Memorial Hospital Sun Yat‐Sen University Guangzhou 510275 China
Abstract
AbstractTraditional starvation treatment strategies, which involve glucose oxidase and drug‐induced thrombi, often suffer from aggravated tumor hypoxia and have failed to improve antitumor efficacy in combination with oxygen‐dependent photodynamic therapy (PDT). Herein, glucose transporter 1 inhibitor genistein (Gen) and photosensitizer chlorin e6 (Ce6) are integrated to construct carrier‐free self‐assembled nanoparticles defined as GC NPs, for starvation therapy‐amplified PDT of tumor. GC NPs with regular morphology and stability are screened out by component adjustment, while the function of each component is preserved. On the one hand, Gen released from GC NPs can cut off tumor glucose uptake by inhibiting the glucose transporter 1 to restrict tumor growth, achieving starvation therapy. On the other hand, they are able to decrease the amount of oxygen consumed by tumor respiration and amplify the therapeutic effect of PDT. In vitro and in vivo experiments verify the excellent synergistic antitumor therapeutic efficacy of GC NPs without any apparent toxicity. Moreover, fluorescence and photoacoustic imaging provide guidance for in vivo PDT, demonstrating the excellent tumor enrichment efficiency of GC NPs. It is believed that this starvation therapy‐amplified PDT strategy by carrier‐free self‐assembled GC NPs holds promising clinical prospects.
Funder
National Natural Science Foundation of China
Subject
Pharmaceutical Science,Biomedical Engineering,Biomaterials
Cited by
12 articles.
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