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A H2O2-responsive theranostic platform for chemiluminescence detection and synergistic therapy of tumors†
Yun Yu,Bo-Ru Xie,Xin-Hua Liu,Jing-Jie Ye,Han Cheng,Zhenlin Zhong,Xian-Zheng Zhang
Journal of Materials Chemistry B Pub Date : 02/09/2022 00:00:00 , DOI:10.1039/D2TB00015F
Abstract

Chemiluminescence substances that respond to hydrogen peroxide (H2O2) in a tumor microenvironment have the potential to achieve accurate tumor imaging. Here, Pluronic F-127 (PF127) and polymers containing oxalate ester (POE) were assembled by hydrophilic and hydrophobic forces to form nanoparticles to load the anti-tumor drug lapachone (Lapa) and rubrene. The Lapa-loaded H2O2-responsive nanoparticles (L-HPOX) could track tumors in vivo through H2O2-related chemiluminescence. With the presence of H2O2 in the tumor microenvironment, L-HPOX would collapse and release the loaded drug for anti-tumor therapy. After treatment with 5,6-dimethylxanthenone-4-acetic acid (DMXAA), the inflammatory level and H2O2 content increased. Thus, L-HPOX exhibited good capabilities of tumor imaging and treatment. Importantly, the immune system was also activated for anti-metastatic activity. This intelligent and efficient chemiluminescent tumor theranostic nanoplatform will find great potential for precise and efficient tumor treatment.

Graphical abstract: A H2O2-responsive theranostic platform for chemiluminescence detection and synergistic therapy of tumors
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