Chem. Commun., 2026, Accepted Manuscript DOI: 10.1039/D6CC02834A, Communication Jiayun Guan, Xusheng Jiang, Yilin Lv, Yajin Xue, Jingyi Zhang, Haiwei Ji, Guo Li, Xiaobo Zhou, Minfeng Yang, Qi Wang A dual-responsive fluorescent probe was developed for real-time monitoring of NO2- and NAD(P)H dynamics. Imaging reveals an E. coli-driven metabolic feedforward loop in bladder cancer, whereby bacteria-derived NO2- upregulates host...