Volume 25, Issue 7 2400575
Research Article

Drug-Loaded Mitochondrial Targeted Nanoparticles for Tumor Imaging and PDT/PTT Combined Chemotherapy in Muscle-Invasive Bladder Cancer

Yuandi Huang

Yuandi Huang

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Zeyu Li

Zeyu Li

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Heping Qiu

Heping Qiu

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Chongxing Shen

Chongxing Shen

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Jianwu Wang

Jianwu Wang

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Benhuang Yan

Benhuang Yan

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Jinjin Li

Jinjin Li

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Qiang Fang

Qiang Fang

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

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Weibing Li

Corresponding Author

Weibing Li

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

E-mail: [email protected]; [email protected]; [email protected]

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Chunmeng Shi

Corresponding Author

Chunmeng Shi

Institute of Rocket Force Medicine, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, 400038 China

E-mail: [email protected]; [email protected]; [email protected]

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Yi Zhi

Corresponding Author

Yi Zhi

Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120 China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 31 March 2025

Abstract

Neoadjuvant chemotherapy combined with radical cystectomy is the standard treatment for muscle-invasive bladder cancer (MIBC). While cisplatin-based regimens reduce postoperative recurrence, their severe toxicity often limits clinical application. Moreover, the need for urinary diversion after radical cystectomy significantly impacts quality of life, leading to reluctance toward surgery. Therefore, developing tumor-targeted therapies and alternative treatment strategies for MIBC is of great clinical significance. In this study, the IR780 iodide multifunctional dye is conjugated to alginate polysaccharide and developed a novel cisplatin-loaded nanoparticle. Then, the tumor targeting and antitumor effects of the nanoparticles are evaluated in vitro and in vivo. The results show that the nanoparticles have sufficient drug loading, enhanced tumor targeting, and good photothermal effect. Furthermore, they shows potential for tumor imaging and diagnostic applications in a mouse model of MIBC. This study proposes a potentially effective treatment for MIBC by combining near-infrared localized phototherapy with systemic chemotherapy to eliminate malignant tissue.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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