Related Experiment Video
Updated: Jul 1, 2026
04:01
Revealing the Ferroptotic Phenotype of Medulloblastoma
Published on: March 15, 2024
Metal-organic framework-based fuel-driven chemical reaction network for ferroptosis therapy
Ding Guo1,2, Qian Lin1, Quanyi Jin1
1Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, PR China.
Journal of Nanobiotechnology
|June 29, 2026
Summary
This study introduces novel nanoparticles that overcome cancer's ferroptosis defenses by inhibiting multiple pathways. This approach significantly inhibits tumor growth, offering a promising new cancer treatment strategy.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Cancer Therapy
Background:
- Ferroptosis is a promising cancer treatment, but its efficacy is limited by three main defense pathways: glutathione (GSH)-glutathione peroxidase 4 (GPX4), ferroptosis suppressor protein 1 (FSP1)-ubiquinol (CoQH2), and dihydroorotate dehydrogenase (DHODH)-CoQH2.
- Overcoming these defense mechanisms is crucial for effective ferroptosis-based cancer therapies.
Purpose of the Study:
- To design a novel drug delivery system (SRF@Au@M NPs) based on MIL-100(Fe) that can predictably break the three ferroptosis defense systems in tumor cells.
- To investigate the synergistic effects of sorafenib, gold nanoparticles, and a novel redox-CRN for enhanced ferroptosis induction.
Main Methods:
- Fabrication of SRF@Au@M NPs via size optimization of MIL-100(Fe), sorafenib loading, in-situ gold nanoparticle growth, and surface modification.
- Investigating the mechanism of SRF@Au@M NPs in releasing sorafenib, generating reactive oxygen species (ROS), and disrupting NAD(P)H metabolic homeostasis.
- Evaluating the therapeutic efficacy of SRF@Au@M NPs in 4T1 tumor cells and tumor-bearing mice models.
Main Results:
- SRF@Au@M NPs effectively released sorafenib, inhibited GPX4 activity, and disrupted carbohydrate metabolism.
- A novel redox-CRN was established, continuously generating ROS and consuming NADH, leading to the inhibition of FSP1-CoQH2 and DHODH-CoQH2 pathways.
- SRF@Au@M NPs induced a potent ferroptosis storm in 4T1 tumor cells, achieving 92.5% tumor growth inhibition in mice.
Conclusions:
- The developed SRF@Au@M NPs successfully broke the three ferroptosis defense pathways by leveraging chemical reaction network principles.
- This strategy provides a new paradigm for ferroptosis activation and demonstrates significant potential for cancer treatment.
- The study highlights the importance of targeting multiple defense mechanisms for enhanced therapeutic outcomes in cancer therapy.
Related Concept Videos
01:31Ferromagnetism
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
01:46Electron Transport Chain: Complex I and II
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
01:16Necrosis
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...