RT journal article T1 Gold nanorod-assisted theranostic solution for nonvisible residual disease in bladder cancer A1 Armanetti, Paolo A1 Locatelli, Irene A1 Venegoni, Chiara A1 Alchera, Elisa A1 Campanella, Beatrice A1 Pederzoli, Filippo A1 Maturi, Mirko A1 Locatelli, Erica A1 Tortorella, Silvia A1 Curnis, Flavio A1 Corti, Angelo A1 Lucianò, Roberta A1 Onor, Massimo A1 Salonia, Andrea A1 Montorsi, Francesco A1 Moschini, Marco A1 Popov, Viktor A1 Jose, Jithin A1 Comes Franchini, Mauro A1 Hin Ooi, Ean A1 Menichetti, Luca A1 Alfano, Massimo A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica AB Residual nonvisible bladder cancer after proper treatment caused by technological and therapeutic limitations is responsible for tumor relapse and progression. This study aimed to demonstrate the feasibility of a solution for simultaneous detection and treatment of bladder cancer lesions smaller than one millimeter. The α5β1 integrin was identified as a specific marker in 81% of human high-grade nonmuscle invasive bladder cancers and used as a target for the delivery of targeted gold nanorods (GNRs). In a preclinical model of orthotopic bladder cancer expressing the α5β1 integrin, the photoacoustic imaging of targeted GNRs visualized lesions smaller than one millimeter, and their irradiation with continuous laser was used to induce GNR-assisted hyperthermia. Necrosis of the tumor mass, improved survival, and computational modeling were applied to demonstrate the efficacy and safety of this solution. Our study highlights the potential of the GNR-assisted theranostic strategy as a complementary solution in clinical practice to reduce the risk of nonvisible residual bladder cancer after current treatment. Further validation through clinical studies will support the findings of the present study. PB National Academy of Sciences of the United States of America SN 1091-6490 YR 2024 FD 2024 LK http://hdl.handle.net/10498/37096 UL http://hdl.handle.net/10498/37096 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 21-sep-2026