Multifunctional H2S-activated metal-organic framework systems for targeted colorectal cancer imaging and synergistic copper-induced tumor regression
Nannan Zheng , Qinghui Wang , Zhiyue Cao , Chao Yu , Renkai Zhang , Kaiyan Xiang , Haoguang Wu , Kai Li , Qianqian Ni , Qiuyue Ma , Jing Mu , Xiaoyuan Chen , Liangcan He , Shaoqin Liu
BMEMat ›› 2026, Vol. 4 ›› Issue (1) : e70029
Stimuli-responsive nanomaterials offer significant potential for enhancing diagnostic accuracy, optimizing therapeutic efficacy, and advancing precision theranostics. Hydrogen sulfide (H2S) was found to be upregulated in colorectal cancer, which endows it with an ideal endogenous trigger for tumor targeting. Here, we introduce a novel class of H2S-activated metal-organic framework (MOF) systems specifically designed for targeted colorectal cancer imaging and synergistic copper-induced tumor regression. The Cu-MOF nanoplatform demonstrated a rapid response to H2S at the tumor site, producing copper sulfide with strong near infrared absorption and activated PA signals. In vivo studies demonstrated remarkable tumor inhibition in an orthotopic colon cancer model with minimal side effects. The copper-based MOFs theranostic nanosystem effectively reduced protein lipoylation and Fe-S cluster protein levels (FDX1), triggering cuproptosis. This study presents a novel strategy for designing multifunctional nanoparticles for synergistic PA/CDT/PTT/cuproptosis theranostics.
colorectal cancer / Cu-MOFs-DOX / H2S response / photoacoustic imaging / photothermal therapy
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2025 The Author(s). BMEMat published by John Wiley & Sons Australia, Ltd on behalf of Shandong University.
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