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Fe/Ni layered double hydroxide biocatalysts inhibit tumor growth through ROS and ferroptosis signaling pathway by Qiwen Pan; Fei Lin; Ruiqi Liu; Yilin Li; Xinyue Zhang; Rui Luo; Lingling Cai; Yang Liu; Wuguo Deng; Liru He is a Engineering article available to read on EtoBox.

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Nanocatalysts provide a platform for developing anti-tumor strategies by activating intratumoral chemical catalysis to produce highly toxic reactive oxygen species (ROS). However, the biological effect of nanocatalysts on tumor cells, which is pivotal for effective nanotherapy treatment, remains poorly understood. Herein, we present a general and facile method of synthesizing Fe/Ni-layered double hydroxides (LDHs) for enhanced apoptosis- and ferroptosis-induced cancer nano-therapy, as well as a potential mechanism underlying the anti-tumor effect based on transcriptome sequencing. An analysis of the chemical structure suggests that the Fe atoms interact strongly with the Ni atoms in Fe/Ni-LDH. Compared with Fe-OH and Ni-OH, Fe/Ni-LDH exhibited significantly better ROS-catalytic activity, with a Vmax of 5.015 × 10−2 μM·s−1, and generated massive amounts of •OH and O2 •− radicals, enabling outstanding chemo-dynamic therapy. Both in vitro and in vivo experiments indicated a robust apoptosis-induced cell death pathway, increased intracellular oxidative stress, and accumulation of lipid peroxide (LPO), promoting ferroptosis-involved cancer-cell death, which was further confirmed by tran

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Author

Qiwen Pan; Fei Lin; Ruiqi Liu; Yilin Li; Xinyue Zhang; Rui Luo; Lingling Cai; Yang Liu; Wuguo Deng; Liru He

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)