题目： | A Two-Pronged Nanostrategy of Iron Metabolism Disruption to Synergize Tumor Therapy by Triggering the Paraptosis–Apoptosis Hybrid Pathway |
作者： | Huali Lei1, Guanghui Hou1*, Lin Liu2, Zifan Pei1, Youdong Chen1, Yujie Lu1, Nalin Yang1, Shumin Sun1, and Liang Cheng1* |
单位： | 1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China. 2Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China. |
摘要： | Iron metabolism has emerged as a promising target for cancer therapy; however, the innate metabolic compensatory capacity of cancer cells significantly limits the effectiveness of iron metabolism therapy. Herein, bioactive gallium sulfide nanodots (GaSx), with dual functions of "reprogramming" and "interfering" iron metabolic pathways, were successfully developed for tumor iron metabolism therapy. The constructed GaSx nanodots ingeniously harness hydrogen sulfide (H2S) gas, which is released in response to the tumor microenvironment, to reprogram the inherent transferrin receptor 1 (TfR1)-ferroportin 1 (FPN1) iron metabolism axis in cancer cells. Concurrently, the gallium ions (Ga3+) derived from GaSx act as a biochemical "Trojan horse", mimicking the role of iron and displacing it from essential biomolecular binding sites, thereby influencing the fate of cancer cells. By leveraging the dual mechanisms of Ga3+-mediated iron disruption and H2S-facilitated reprogramming of iron metabolic pathways, GaSx prompted the initiation of a paraptosis–apoptosis hybrid pathway in cancer cells, leading to marked suppression of tumor proliferation. Importantly, the dysregulation of iron metabolism induced by GaSx notably increased tumor cell susceptibility to both chemotherapy and immune checkpoint blockade (ICB) therapy. This study underscores the therapeutic promise of gas-based interventions and metal ion interference strategies for the tumor metabolism treatment. |
影响因子： | 15.8 |
分区情况： | 一区 |
链接： | https://doi.org/10.1021/acsnano.4c06199 责任编辑：杜欣 |