Gut Microbes
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2025
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IF 11
Yingjuan He,Gaomei Zhao,Xue Ouyang,Shaobo Wang,Yin Chen,Chenwenya Li,Yongwu He,Jining Gao,Songling Han,Jinghong Zhao,Junping Wang,Cheng Wang
Ionizing radiation-induced intestinal injury (IRIII) is a catastrophic disease lack of sufficient medical countermeasures currently. Regulation of the gut microbiota through dietary adjustments is a potential strategy to mitigate IRIII. Time-restricted feeding (TRF) is an emerging behavioral nutrition intervention with pleiotropic health benefits. Whether this dietary pattern influences the pathogenesis of IRIII remains vague. We evaluated the impact of TRF on intestinal radiosensitivity in this study and discovered that only daytime TRF (DTRF), not nighttime TRF, could ameliorate intestinal damage in mice that received a high dose of IR. Faecal metagenomic and metabolomic studies revealed that the intestinal creatine level was increased by approximate 9 times by DTRF, to which the Bifidobacterium pseudolongum enrichment contribute. Further investigations showed that creatine could activate the energy sensor AMP-activated protein kinase in irradiated enterocytes and induce phosphorylation of acetyl-CoA carboxylase, resulting in reduced production of polyunsaturated fatty acids and reduced ferroptosis after IR. The administration of creatine mitigated IRIII and reduced bacteremia and proinflammatory responses. Blockade of creatine import compromised the ferroptosis inhibition and mitigation of DTRF on IRIII. Our study demonstrates a radioprotective dietary mode that can reshape the gut microbiota and increase intestinal creatine, which can suppress IR-induced ferroptosis, thereby providing effective countermeasures for IRIII prevention.
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PHYTOMEDICINE
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2025
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IF 8.3
Jingyu Weng,Lang Liu,Shuming Li,Yuangui Yang,Rui Zhou,Zhen Zhang,Yanru Liu,Lin Chen,Zeyu Feng,Zhishu Tang,Hongbo Xu
Background Lipid peroxide accumulation plays significant roles in cerebral ischemia-reperfusion injury (CIRI) through various mechanisms, including ferroptosis. Preserving the neuronal metabolic equilibrium and averting cell death during cerebral Ischemia-reperfusion are pivotal for protecting brain function. Yinaoxin granule (YNX) is a widely used Chinese herbal preparations for treating cerebrovascular diseases, but pharmacological mechanism remains ambiguous.. Purpose The aim in this study was to assess the effectiveness of YNX in treating CIRI and to investigate the underlying mechanisms. Methods The active ingredients of YNX were quantified using high-performance liquid chromatography. To explore the effects of YNX on CIRI and ferroptosis, both an in vitro oxygen-glucose deprivation and reperfusion model and a middle cerebral artery occlusion and reperfusion rat model were used. To assess the neuroprotective effects of YNX in the latter, neurological scores and cerebral blood flow were evaluated. Neuronal damage was determined through 2,3,5-triphenyltetrazolium chloride, Nissl, and H&E staining. Ferroptosis-related markers, including ferrous ion, glutathione, 4-hydroxynonenal, and malondialdehyde were also investigated. Furthermore, the gene expression and protein levels of solute carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPX4) and glutamate-cysteine ligase modulator (GCLM) were determined. Results YNX enhanced neurological scores and cerebral blood flow, reduced infarct volume, and rescued necrotic neurons in rats. Additionally, YNX mitigated lipid peroxidation and upregulated the SLC7A11, GCLM, and GPX4 levels. The absence of Nrf2 rendered neurons more susceptible to ischemia-reperfusion damage and abrogated the anti-ferroptotic neuroprotective effects of YNX. Conclusion YNX activates the Nrf2 pathway, resulting in the transcription of genes associated with antioxidants, including SLC7A11, GCLM, and GPX4. This suggests that YNX reduces lipid peroxidation and alleviates ferroptosis-induced CIRI.
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CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Bowen Jia,Yuchen Yao,Yejia Xu,Yang Zhao,Jing Li,Yumeng Wu,Xiaofeng Zeng,Shijun Hong,Qianqian Li,Xuexia Liu,Chengliang Luo
Traumatic brain injury (TBI) is a major global health issue, causing blood–brain barrier disruption, neuroinflammation, and neuronal damage. Current therapies are limited and failed to address key pathological mechanisms like ferroptosis, oxidative stress, and inflammation, highlighting the need for novel treatments. Recent advances in nanomedicine, particularly nanozymes, offer promising solutions. Copper-based ultrasmall nanozymes, with excellent catalytic activity and biocompatibility, have shown potential in mitigating ferroptosis and oxidative stress. In this study, we developed polyethylene glycol-modified Cu 5.4 O (Cu 5.4 O-PEG), a nanomaterial with superior blood–brain barrier penetration and biocompatibility. Cu 5.4 O-PEG demonstrated no cytotoxicity and significantly reduced oxidative stress and ferroptosis in both in vitro and in vivo models, improving motor and cognitive functions in murine TBI models. The therapeutic effects were mediated through multiple mechanisms, including inhibition of the Fenton reaction, scavenging of reactive oxygen species (ROS), and reducing iron deposition, effectively limiting tissue damage. Proteomic analysis revealed modulation of ferroptosis-related proteins and activation of protective pathways related to transferrin receptor 1 (TfR1). Furthermore, using AAV-mediated knockdown of TfR1 in mice, we observed significant reductions in lipid peroxidation markers such as ACSL4, COX2, and 4HNE, indicating a decrease in iron-induced damage. Histological analysis showed reduced iron deposition, and improved neuronal morphology in TfR1 knockdown mice underwent TBI, indicating knockdown of TfR1 could alleviate TBI-indued ferroptosis and iron-dependent neurodegeneration. Taken together, these data imply that Cu 5.4 O-PEG presents a neuroprotective strategy for improving cerebral recovery after TBI, at least partly by inhibiting TfR1-mediated ferroptosis.
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Antioxidants
·
2025
·Vol. 14
·期 5
·576
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IF 6.6
Jiaming Chen,Yuting Fu,Shaoping Weng,Jianguo He,Chuanfu Dong
Scale drop disease virus (SDDV) poses an escalating threat to global aquaculture, prompting an urgent need for research. Our study found that SDDV infection upregulates genes related to iron, oxidative stress, and lipid metabolism, causing iron overload, reactive oxygen species (ROS) accumulation, and ultimately ferroptosis. Among the tested antioxidants, vitamin C (VC) demonstrated the most potent inhibitory effect in mandarin fish, reducing SDDV-induced mortality by 37.5%. qPCR and IFA results showed that VC effectively suppressed SDDV infection; decreased ROS, lipid peroxidation (LPO), and iron levels; and enhanced glutathione peroxidase 4 (GPX4) expression in infected cells. Mechanistically, VC’s inhibitory effect was reversed by the nuclear factor erythroid 2-related factor 2 (Nrf2) inhibitor ML-385, indicating an Nrf2-dependent pathway. VC promoted Nrf2 nuclear translocation and activated downstream antioxidant genes. Moreover, VC modulated inflammation by regulating pro- and anti-inflammatory factors. These findings suggest VC as a promising therapeutic for SDDV infection.
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INTERNATIONAL IMMUNOPHARMACOLOGY
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2024
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IF 4.8
Xiuju Liu,Yuhui Sun,Xue Lv,Mengmeng Song,Jian Sun,Yulan Sun
Lung carcinoma is a frequently encountered cancerous growth that affects the respiratory tract and has a high occurrence rate globally. In light of the ongoing worldwide health emergency, the significance of efficient therapeutic agents and strategies is of utmost importance. A meticulous control of the cell cycle is crucial for comprehending the pathophysiology and molecular causes of lung cancer, as well as for the formulation of efficacious therapeutic medicines. The mechanism by which cells synchronize cell cycle with cell survival and death is still not fully understood. In this study, we demonstrate that the halting of the cell cycle has a strong inhibitory impact on ferroptosis, a specific type of controlled cell death triggered by excessive lipid peroxidation at the membranes of cells. Ferroptosis is halted through the mechanism of cell cycle arrest, which involves the deposition of intracellular lipids mediated by diacylglycerol acyltransferase (DGAT). Excessive amounts of polyunsaturated fatty acids (PUFAs) are stored as triacylglycerols (TAGs) within inactive cells. As a result, inhibiting DGAT causes a rearrangement of PUFAs from TAGs to phospholipids and makes arrested cells more susceptible to ferroptosis. We demonstrate that certain lung cancer cells that are resistant to antimitotic drugs and have a slow-cycling behavior exhibit an increase in lipid droplets. Furthermore, we find that the growth of tumors resistant to 5-fluorouracil, lorlatinib, and docetaxel can be effectively suppressed by a combination treatment involving the use of ferroptosis inducers and DGAT inhibitors, which induces ferroptosis. Collectively, these findings demonstrate the involvement of cell cycle arrest in conferring resistance to ferroptosis and propose a potential therapeutic approach for addressing the challenge of slow-cycling malignancies that exhibit resistance to ferroptosis.
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BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
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2024
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IF 2.5
Shuangliu Chen,Yalan Pan,Yang Guo,Xiaoxian Sun,Xue Bai,Mengmin Liu,Lining Wang,Jiřimutu Xiao,Cheng Chen,Yong Ma
This study utilized bioinformatics and data mining techniques to explore the molecular mechanism of curcumin in treating osteoporosis (OP) through the lens of ferroptosis, thereby identifying novel therapeutic targets. The datasets GSE35958, GSE35956, GSE7429, and GSE7158 were obtained from the Gene Expression Omnibus (GEO) database. GSE35958 and GSE35956 were employed as training sets for data integration, while GSE7429 and GSE7158 served as independent validation sets. Through retrieval from the FerrDb database, iron death-related genes (FRGs) were identified, and the differentially expressed genes (DEGs) were intersected to obtain differentially expressed FRGs (DEFRGs). Subsequently, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted, followed by the construction of a Protein-Protein Interaction (PPI) network to identify Hub genes. The DGIdb database was utilized to predict candidate drugs associated with the Hub genes, and molecular docking and in vitro experiments confirmed that curcumin targets the Hub genes EGFR and PTGS2.Through in vitro testing of curcumin on BMSC cells, researchers examined cell vitality, iron death, osteogenic differentiation, mineralization, and the impact on EGFR and PTGS2 levels. The analysis yielded 2212 DEGs, 484 FRGs, with 45 FDEGs at the intersection. GO analysis revealed involvement in regulating mitochondrial proteins, amino acid transport across plasma membranes, and protein ubiquitination. KEGG pathway analysis indicated associations with iron death, FoxO signaling, mTOR signaling, cell aging, osteoclast differentiation, and GSH metabolism. Utilizing the MCC algorithm, five Hub genes were identified: MAPK3, PTGS2, TGFB1, CYBB, and EGFR, showing diagnostic potential for iron death. Curcumin displayed affinity for EGFR and PTGS2, mitigating iron-induced effects on BMSCs such as increased reactive oxygen species, Fe3+ levels, and decreased mitochondrial membrane potential. Furthermore, curcumin reversed these effects, suggesting EGFR and PTGS2 as targets for curcumin to inhibit BMSC ferroptosis and potentially delay osteoporosis development. Maintaining iron homeostasis and targeting BMSC ferroptosis could offer therapeutic avenues for iron overload-induced osteoporosis.
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JOURNAL OF CONTROLLED RELEASE
·
2025
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IF 11.5
Fei Wu,Chunxue Song,Hanxiao Yin,Ronglong Chen,Guanyu Huang,Jiajun Zhang,Haimin Chen,Li Lin,Junqiang Yin,Lisi Xie,Weihai Liu
Poor bioavailability and dose-limiting cardiotoxicity persistently hinder the clinical application of bufalin (BF). Conventional BF-based nanoagents have shown promise in tackling these challenges, yet advanced nanostrategies with further improved performance and clinical accessibility still await development. Herein, we introduce a novel cooperative nanoparadigm based on disulfide-linked bufalin homodimeric prodrugs (SBF) and metal phenolic networks (MPNs). This strategy achieves high drug-loading capacity and structural stability. Stability perturbation experiments reveal that hydrophobic interactions, electrostatic adsorption, and coordination bonds synergistically drive co-assembly of SBF and MPNs. The resultant nanopartieles (MSBNAs) exhibit prolonged circulation kinetics, tumor-selective accumulation, and pH/GSH dual-responsive properties, effectively mitigating BF-induced cardiotoxicity. Further antitumor mechanistic investigations unveil that MSBNAs amplify BF-induced ferroptosis through a dual assault of oxidative stress and iron overload induced jointly by MPNs-delivered exogenous iron and BF-triggered endogenous iron. This increased ferroptosis endows MSBNAs with superior suppression of tumor growth and lung metastasis, maintaining excellent biocompatibility without cardiotoxicity. Our work not only establishes a promising candidate platform to surmount the therapeutic hurdles of BF but also enriches the design landscapes of co-assembled nanomedicines, thereby laying a foundation for the clinical translation of BF and other antitumor drugs.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2025
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IF 6.2
Jie Zhou,Yurou Li,Chen Xi,Wupei Pan,Qin Yu,Zhengping Wu
Fumonisin B1 (FB1) is a common mycotoxin known to cause hepatotoxicity in various species. However, whether ferroptosis is involved in its toxicity remains unclear, and effective interventions are lacking. Apigenin (AG) is a natural antioxidant with recognized cytoprotective properties. In this study, we investigated ferroptosis in FB1-induced liver injury and explored AG’s protective effects via the Nrf2/FSP1 pathway. FB1 triggered ferroptosis in hepatocytes, evidenced by decreased ubiquinol (CoQ10H2), Nrf2, and ferroptosis suppressor protein 1 (FSP1) levels, and increased Fe2+ levels, NAD+/NADH ratio, and lipid peroxidation (LPO). Both ferrostatin-1 and AG attenuated FB1-induced ferroptosis by upregulating CoQ10H2 and suppressing LPO, with effects similar to those of Nrf2 or FSP1 overexpression. However, knockdown of either Nrf2 or FSP1 abolished AG’s protective effects against FB1-induced ferroptosis. Collectively, this study reveals a novel mechanism by which AG activates the Nrf2/FSP1 pathway to counteract FB1-induced hepatotoxicity, suggesting its potential as a hepatoprotective agent against environmental toxins.
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Bioengineering & Translational Medicine
·
2025
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IF 5.7
Lulu Chen,Bicheng Chen,Xiang Su
An abdominal aortic aneurysm (AAA) is a life-threatening vascular condition characterized by the dilation of the abdominal aorta, with ferroptosis playing a significant role in its pathogenesis. This study investigates the therapeutic potential of engineering biomimetic nanovesicles to deliver phosphatidylethanolamine-binding protein 1 (PEBP1) mRNA for inhibiting ferroptosis in vascular smooth muscle cells (VSMCs) and preventing AAA progression. Differential gene expression analysis of the AAA transcriptomic dataset GSE57691 identified 243 differentially expressed genes (DEGs), intersecting with 12 ferroptosis-related genes. Single-cell analysis of dataset GSE237230 highlighted PEBP1 as a key gene in VSMCs. Overexpression of PEBP1 in VSMCs enhanced proliferation, reduced reactive oxygen species (ROS) and iron levels, and inhibited apoptosis and ferroptosis via the NRF2/GPX4 axis. The engineered biomimetic nanovesicles demonstrated significant uptake by VSMCs and effective delivery of PEBP1 mRNA. In vivo studies confirmed that these nanovesicles substantially inhibited AAA progression in mice. This study presents a novel bioengineering approach for AAA treatment by targeting ferroptosis through PEBP1 mRNA delivery, offering a promising molecular strategy for the prevention and management of AAA.
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CANCER RESEARCH
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2025
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IF 16.6
Zhou Hai-Meng,Liu Yi,Shi Feng,Qiu Hao-Wen,Li Le,Shu Qi-Peng,Liu Yu-Ying,Wang Bai-Qi,Gao Meng,Du Run-Lei,Ke Shao-Bo,Zhang Xiao-Dong
Ferroptosis, a form of regulated cell death driven by iron-dependent lipid peroxidation, plays a crucial role in colorectal cancer (CRC) progression and therapeutic response. The NRF2 pathway is one of the critical axes in ferroptosis regulation, which governs oxidative stress resistance and iron homeostasis through its downstream targets, including HMOX1, SLC7A11, and others. However, HMOX1 and SLC7A11 exhibit contrasting roles in ferroptosis, with HMOX1 promoting ferroptosis via iron accumulation and lipid peroxidation, while SLC7A11 inhibits ferroptosis by enhancing antioxidant defenses. Here, we identified CLK2 as a key regulator of the delicate balance of the opposing effects of HMOX1 and SLC7A11. CLK2 stabilized KEAP1 to suppress NRF2 activity, resulting in the downregulation of HMOX1 and SLC7A11. Simultaneously, CLK2 downregulated p53, thereby relieving p53-mediated repression of SLC7A11. The dual regulation by CLK2 disrupted the balance between HMOX1 and SLC7A11, leading to excessive activation of HMOX1 in the absence of CLK2, ultimately sensitizing CRC cells to ferroptosis. Additionally, CLK2 promoted CRC proliferation and tumorigenesis in patient-derived organoids, cell lines, and mouse models. Furthermore, combining the ferroptosis inducer Erastin with Oxaliplatin significantly enhanced anti-tumor efficacy in CLK2-deficient xenograft models. Together, this study establishes CLK2 as a critical inhibitor of ferroptosis via the KEAP1/NRF2/HMOX1 and p53/SLC7A11 axes, supporting its potential as a therapeutic target for CRC.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2025
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IF 5.6
Jiashuai Yan,Di Wu,Biwen Zhu,Xiaoqi Guan,Xue Zhang,Yibing Guo,Yuhua Lu
As a highly aggressive solid tumor, pancreatic ductal adenocarcinoma (PDAC) is featured by a conspicuous tumor microenvironment (TME) with abundant extracellular matrix (ECM) deposition, such as collagen and hyaluronic acid (HA). Accompanying with the pathological process, the dense matrix caused stiffen microenvironment, which leads to poor chemotherapy. Therefore, understanding the potential mechanism of mechanical microenvironment on PDAC chemoresistance is of great significance. To this end, 3D printed methacrylated gelatin (GelMA) and hyaluronic acid methacryloyly (HAMA) hydrogel model was fabricated to resemble the mechanical microenvironment of PDAC. The results presented that the PDAC cell lines (MIA-PaCa2 and PANC-1) embedded in the hydrogel were distinctively less sensitive to gemcitabine compared to tissue culture plate (TCP) group. Interestingly, immunofluorescence staining and qRT-PCR assay demonstrated that the NRF2 level was elevated, which further upregulated the downstream effectors, such as SLC7A11 and GPX4. Meanwhile, the GSH concentration and GPX4 activity of hydrogel group were increased, while the lipid peroxidation level was reduced, which indicated that the matrix stiffness microenvironment mediated ferroptosis phenotype. Furthermore, RNA interference experiment elaborated that shNRF2 group showcased significantly enhanced sensitivity to gemcitabine, which demonstrated that the biomimetic microenvironment modulated chemoresistance through ferroptosis. All in all, the 3D printed model may serve as a new platform for illustrating the underlying mechanism of the TME induced chemoresistance, and also proposed a novel therapeutic strategy for PDAC through NRF2 inhibition, which effectively promotes ferroptosis to overcome chemoresistance.
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Heliyon
·
2024
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IF 3.4
Wen-Juan Tang,Di Xu,Ming-Xing Liang,Guan-Qun Wo,Wen-Quan Chen,Jin-Hai Tang,Wei Zhang
Triple-negative breast cancer (TNBC) is more prone to recurrence and metastasis relative to other subtypes of breast cancer, leading to an extremely poor prognosis. The increasing potential chemoresistance of TNBC patients is mainly due to that tumor cells escape from apoptosis. In recent years, statins have demonstrated extensive anti-tumor effects. It is worth noting that statins have more effective anti-tumor effects on TNBC cells and drug-resistant breast cancer cells. Therefore, this study examines the superior cytotoxic effects of statins on TNBC cell lines and further explores their potential therapeutic mechanisms. We detected different cell phenotypes and found that statins significantly reduced the cell viability of TNBC cells. Specifically, pitavastatin showed an obvious induction in cell death, cell cycle arrest and oxidative stress in TNBC MDA-MB-231 cells. The reversal effect of iron chelator desferrioxamine (DFO) on the morphological and molecular biological changes induced by pitavastatin has revealed a new mode of cell death induced by pitavastatin: ferroptosis. This ferroptotic effect was strengthened by the decreased expression of glutathione peroxidase 4 (GPx4) as well as newly discovered ferroptosis suppressor protein 1 (FSP1). The data showed that ferroptotic death of MDA-MB-231 cells is autophagy-dependent and mediated by the mevalonate pathway. Finally, we found that therapeutic oral doses of statins can inhibit the growth of transplanted tumors, which establishes statins as a potential treatment for TNBC patients. In conclusion, we found pitavastatin could induce autophagy-dependent ferroptosis in TNBC cells via the mevalonate pathway which may become a potential adjuvant treatment option for TNBC patients.
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