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ACS Biomaterials Science & Engineering · 2025 · IF 5.5

DDTC-Cu(I) Nano-MOF Induces Ferroptosis by Targeting SLC7A11/GPX4 Signal in Colorectal Cancer

Juan Huang,Mingjing Yang,Xingyu Zhou,Jigang Luo,Xiaoxia Yan,Guanghui Lin,Shijie Li,Shihui Liu,Zhuoyue Song,Chunzhi Tang,Nenggui Xu,Tao Liu,Jian Liang

Drug repurposing has received increasing attention in the field of oncology drug development as an alternative strategy to de novo drug synthesis. Disulfiram (DSF) has a long history of clinical application in alcohol withdrawal, and recent studies have revealed that its metabolite diethyldithiocarbamate (DDTC) can be coordinated with copper ions in vivo to form Cu-DDTC complexes with anticancer activity. However, the insufficient in vivo stability of DSF remains a challenge. In this study, the nanomedicine Cu-BTC@DDTC with DDTC-Cu(I) chemical valence and polycrystalline structure was prepared by incorporation of DDTC into the nanosized metal–organic framework (MOF) Cu-BTC. The in vitro cellular evaluation results showed that Cu-BTC@DDTC exhibited high inhibition of tumor cell growth, migration, and invasion. Animal experiments on the xenograft tumor model further demonstrated the excellent antitumor activity and biosafety of Cu-BTC@DDTC, and the antitumor activity was found to be closely related to the regulation of the SLC7A11/GPX4 signaling pathway to induce ferroptosis. This study provides a feasible option for antitumor drug development based on a drug repurposing strategy.

✓ 已验证 产品关联 DOI PubMed 高影响因子
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FREE RADICAL RESEARCH · 2025 · IF 2.9

Dioscin induces ferroptosis to suppress the metastasis of gastric cancer through the SLC7A11/GPX4 axis

Doudou Lu,Ling Yuan,Zhaozhao Wang,Duojie Xu,Fandi Meng,Shumin Jia,Yahong Li,Weiqiang Li,Yi Nan

The prognosis of gastric cancer (GC) remains poor due to metastases and resistance to chemotherapy. Ferroptosis is a novel cell death regulation mode characterized by iron dependence and lipid peroxidation. Dioscin, a compound extracted from the Paris polyphylla rhizomes roots, has been shown to have an inhibitory effect on cancers. However, whether it induces ferroptosis to participate in anti-cancer metastasis remains unclear. The ability of gastric cancer cells to invade and migrate was evaluated by wound healing and transwell assays. Malondialdehyde (MDA), glutathione (GSH) assay kit, and dichlorofluorescin diacetate (DCFH-DA) fluorescent probes were used to detect ferroptosis in gastric cancer cells. The expression levels of glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11) were detected by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot methods. The rescue assay was performed by adding Ferrostatin-1 (Fer-1) co-treatment to verify that Dioscin inhibited gastric cancer metastasis by participating in ferroptosis. Dioscin inhibited gastric cancer cells’ wound healing, migration, and invasion process. In addition, Dioscin increased the level of reactive oxygen species (ROS) and MDA while decreasing GSH level, and induced ferroptosis of gastric cancer cells. Fer-1, an inhibitor of ferroptosis, could reverse the effect of Dioscin. In terms of mechanism, Dioscin induced ferroptosis through SLC7A11/GPX4 axis and was involved in the regulation of inhibiting metastasis of gastric cancer. These results suggested that Dioscin was involved in anti-cancer metastasis by inducing ferroptosis.

CAS / MDL: 19057-60-4
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Scientific Reports · 2025 ·Vol. 15 ·期 1 ·1-17 · IF 3.9

TXNIP mediates ferroptosis in a bronchopulmonary dysplasia mouse model by regulating the SLC7A11/GPX4 pathway

Chen Dongzhui,Yin Feifei,Yang Pin,Xia Wanrong,Huang Yi,Feng Yue,Yang Li,Lin Shuqiang,Zhang Qiuyue

Bronchopulmonary dysplasia (BPD) is one of the most common respiratory diseases in preterm infants. Studies have shown that ferroptosis is involved in the pathogenesis of BPD, and thioredoxin-interacting protein (TXNIP)-mediated oxidative stress also plays a role in its development. The solute carrier family 7 member 11 (SLC7A11)/glutathione peroxidase 4 (GPX4) signaling pathway is one of the key pathways regulating ferroptosis. This study aimed to investigate the mechanism by which TXNIP regulates SLC7A11/GPX4 pathway-mediated ferroptosis in BPD. Mice were randomly divided into ten treatment groups: Air, Hyperoxia, Hyperoxia + RSL3, Hyperoxia + Ferrostatin-1, Hyperoxia + Ad-shNC, Hyperoxia + Ad-shTXNIP, Hyperoxia + Ad-vector, Hyperoxia + Ad-TXNIP, Hyperoxia + Ad-shSLC7A11, and Hyperoxia + Ad-shTXNIP + Ad-shSLC7A11. Lung tissues were collected for hematoxylin and eosin (H&E) staining to observe pathological changes, and transmission electron microscopy (TEM) was used to examine mitochondrial morphology. Real-time quantitative polymerase chain reaction (qPCR) was performed to measure the mRNA expression of TXNIP, SLC7A11, and GPX4. Western blotting was used to analyze the protein levels of TXNIP, SLC7A11, and GPX4. GPX4 activity was determined using an enzyme-linked immunosorbent assay (ELISA). Additionally, glutathione (GSH), malondialdehyde (MDA), and ferrous iron (Fe 2+ ) levels in lung tissues were measured using corresponding detection kits. H&E staining and TEM confirmed successful modeling of lung injury after hyperoxia. MDA and Fe 2+ increased, GSH decreased, and GPX4 activity declined after hyperoxia. TXNIP mRNA and protein were upregulated by hyperoxia, while SLC7A11 and GPX4 were downregulated. Ferroptosis activation exacerbated lung injury, whereas inhibition alleviated it. TXNIP overexpression using adenovirus serotype 5 (Ad5) aggravated ferroptosis in BPD, and this was ameliorated by TXNIP knockdown. Knockdown of the upstream signal SLC7A11 increased ferroptosis in BPD, and simultaneous knockdown of TXNIP and SLC7A11 reversed the ferroptosis reduction. In conclusion, in the BPD model, TXNIP expression was increased, and TXNIP promoted ferroptosis by downregulating the SLC7A11/GPX4 pathway. These findings suggest that gene therapy targeting TXNIP knockdown using adenovirus as a vector may serve as a therapeutic strategy for BPD.

✓ 已验证 DOI PubMed 高影响因子
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LANGMUIR · 2026 · IF 4.4

Glutathione-Driven Redox Inducer with Disruption of the SLC7A11/GSH/GPX4 Axis for Enhanced Ferroptotic Therapy

Li Sen,Wang Wentao,Chen Yizhang,Shao Qiuze,Yang Zhaoqi,Hua Dong

Non-small-cell lung cancer (NSCLC) is a lethal malignant tumor worldwide. Although ferroptosis offers a promising route for curcumin-mediated non-small-cell lung cancer therapy, its efficacy is often constrained by the robust antioxidant defense maintained by the SLC7A11/GSH/GPX4 axis, which continuously sustains cystine uptake, glutathione biosynthesis, and GPX4-dependent lipid peroxide detoxification, thereby maintaining cellular homeostasis. Herein, we developed a glutathione-responsive metal–organic framework nanoplatform for the co-delivery of curcumin and a GPX4-targeting antisense oligonucleotide (ASO). After cellular internalization, the disulfide-bearing framework underwent GSH-triggered disassembly, enabling synchronized release of curcumin and ASO while depleting the intracellular GSH. Released curcumin increased ROS accumulation and disturbed redox homeostasis, whereas ASO silenced GPX4 expression to concurrently disable the antioxidant defense. Flow cytometry and Western blot assays confirmed significant ROS accumulation and SLC7A11 downregulation, which were detailed by molecular dynamics simulations with putative binding modes. Furthermore, the nanocomposite demonstrated robust anticancer effects in 3D multicellular tumor spheroids with a promoted oxidative imbalance. Taken together, this coordinated intervention disrupted the SLC7A11/GSH/GPX4 antioxidant axis, amplified lipid peroxidation, impaired mitochondrial function, and ultimately enhanced ferroptotic vulnerability.

✓ 已验证 DOI 高影响因子
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LIFE SCIENCES · 2026 · IF 5.1

HHcy promotes hypertension by activating ferroptosis via suppression of the renal H₂S-SLC7A11/GPX4 axis

Pan Huang,Kexin Zhang,Ying Chen,Jiaxin Cheng,Shuangshuang Yang,Lin Shi,Yajuan Wang,Qin Zhang

Elevated homocysteine (Hcy) is an independent risk factor for hypertension, and kidney is an important organ for Hcy metabolism and blood pressure regulation, and its damage is closely related to the process of hypertension. Recent evidence suggests that ferroptosis, an oxidative stress-related form of cell death, contributes significantly to hypertensive organ damage. However, whether Hcy aggravates renal injury in H-type hypertension by destroying renal hydrogen sulfide (H 2 S) metabolism and driving ferroptosis is still lack of direct evidence. In this study, the H-type hypertensive rat model induced by high methionine diet combined with HK-2 cell model was studied. We observed a significant increase in blood pressure and plasma Hcy in the Hcy group, accompanied by renal dysfunction and renal tubular injury. Specifically, in the renal tissue of Hcy group rats, the levels of KIM-1, Fe 2+ and malondialdehyde (MDA) were increased, glutathione/glutathione disulfide (GSH/GSSG) ratio decreased, SLC7A11 expression was down-regulated, and GPX4 activity was inhibited. Concurrently, H 2 S levels and cystathionine-beta-synthase (CBS) activity were decreased. In vitro experiments using HK-2 cells confirmed that Hcy could down-regulate the expression of CBS, cystathionine-gamma-lyase (CSE), SLC7A11, GPX4 and GSH/GSSG ratio, and up-regulate MDA and reactive oxygen species (ROS) levels. Treatment with H 2 S donor (NaHS) or ferroptosis inhibitors (Ferrostatin-1, Fer-1) could rescue these changes. Collectively, our results demonstrate that high Hcy promotes hypertension by suppressing endogenous H 2 S generation, downregulating the SLC7A11/GPX4 signaling axis, and inducing ferroptosis. These findings reveal a new mechanism by which Hcy aggravates hypertension by inhibiting H 2 S synthesis and inducing ferroptosis.

CAS / MDL: 207683-19-0
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Cardiovascular Diabetology · 2024 ·Vol. 23 ·期 1 ·1-19 · IF 8.5

Irisin attenuates type 1 diabetic cardiomyopathy by anti-ferroptosis via SIRT1-mediated deacetylation of p53

Tang Yuan-juan,Zhang Zhen,Yan Tong,Chen Ken,Xu Guo-fan,Xiong Shi-qiang,Wu Dai-qian,Chen Jie,Jose Pedro A.,Zeng Chun-yu,Fu Jin-juan

Background Diabetic cardiomyopathy (DCM) is a serious complication in patients with type 1 diabetes mellitus (T1DM), which still lacks adequate therapy. Irisin, a cleavage peptide off fibronectin type III domain-containing 5, has been shown to preserve cardiac function in cardiac ischemia–reperfusion injury. Whether or not irisin plays a cardioprotective role in DCM is not known. Methods and results T1DM was induced by multiple low-dose intraperitoneal injections of streptozotocin (STZ). Our current study showed that irisin expression/level was lower in the heart and serum of mice with STZ-induced TIDM. Irisin supplementation by intraperitoneal injection improved the impaired cardiac function in mice with DCM, which was ascribed to the inhibition of ferroptosis, because the increased ferroptosis, associated with increased cardiac malondialdehyde (MDA), decreased reduced glutathione (GSH) and protein expressions of solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4), was ameliorated by irisin. In the presence of erastin, a ferroptosis inducer, the irisin-mediated protective effects were blocked. Mechanistically, irisin treatment increased Sirtuin 1 (SIRT1) and decreased p53 K382 acetylation, which decreased p53 protein expression by increasing its degradation, consequently upregulated SLC7A11 and GPX4 expressions. Thus, irisin-mediated reduction in p53 decreases ferroptosis and protects cardiomyocytes against injury due to high glucose. Conclusion This study demonstrated that irisin could improve cardiac function by suppressing ferroptosis in T1DM via the SIRT1-p53-SLC7A11/GPX4 pathway. Irisin may be a therapeutic approach in the management of T1DM-induced cardiomyopathy.

CAS / MDL: 571203-78-6
研究领域: 内分泌学 · 心脏病学 · 分子生物学 · 药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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CANCER RESEARCH · 2025 · IF 16.6

CLK2 Regulates the KEAP1/NRF2 and p53 Pathways to Suppress Ferroptosis in Colorectal Cancer

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.

CAS / MDL: 138-14-7
研究领域: 癌症生物学 · 分子生物学 · 细胞死亡 · 信号转导 · 肿瘤学 · 药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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PATHOLOGY RESEARCH AND PRACTICE · 2025 · IF 3.2

β-Ionone promotes ferroptosis of human gastric cancer cells by inhibiting the Wnt/β-catenin pathway in vitro and in vivo

Ting-Ting Yang,Xin-Xin Ma,Xuan Zhang,Zhen-Qing Han,Shuang Zhang,Qi Wang,Hong-Wei Dong,Jia-Ren Liu

β-Ionone (BI) has shown the potent inhibitory malignant progression of multiple tumors including gastric cancer in vitro and in vivo. However, the mechanism by which BI inhibits gastric cancer remains to be clarified, especially in ferroptosis, which is a new form of programmed cell death. The aim of this study was to investigate whether BI could induce ferroptosis in gastric cancer and the underlying mechanisms. The results manifested that BI obviously inhibited cell viability and increased the Fe 2 + level, total reactive oxygen species (ROS) and lipid ROS levels and the malondialdehyde (MDA) concentrations, but reduced the mitochondrial membrane potential (MMP) and the expression of SLC7A11 and GPX4 in MKN45 cells and AGS cells ( P  < 0.05 or P  < 0.01). Besides, BI also arrested cell cycle and decreased the expression of Cyclin D1 and CDK4 ( P  < 0.05 or P  < 0.01). Mechanistically, BI reduced the levels of β-catenin and pGSK-3β/GSK-3β in MKN45 cells and AGS cells ( P  < 0.05 or P  < 0.01). Nevertheless, pretreatment with lithium chloride (LiCl), an inhibitor of GSK-3β, reversed BI-induced ferroptosis and cell cycle arrested in MKN45 cells ( P  < 0.05). In addition, BI effectively inhibited the growth of gastric cancer xenografts and downregulated the levels of GPX4, SLC7A11, PCNA, β-catenin and pGSK-3β/GSK-3β ( P  < 0.05 or P  < 0.01). Collectively, our study reveals that BI inhibits proliferation of gastric cancer cells by induction ferroptosis via the Wnt/β-catenin signaling pathway and provides a novel therapy for gastric cancer.

CAS / MDL: 111-30-8 64-17-5 64-19-7
研究领域: 肿瘤学 · 细胞生物学 · 药理学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Food & Function · 2021 ·Vol. 12 ·期 24 ·12671-12682 · IF 5.396

Sesamin attenuates PM2.5-induced cardiovascular injury by inhibiting ferroptosis in rats

Jing-yi Ren,Bo-wen Yin,Xiang Li,Si-qi Zhu,Jin-liang Deng,Yi-ting Sun,Zhen-ao Zhang,Zi-hao Guo,Huan-ting Pei,Fan Zhang,Rui-qiang Li,Feng-ge Chen,Yu-xia Ma

Objective: This study aimed to elucidate the pharmacological effects of sesamin (Ses) and its mechanism of action towards PM2.5-induced cardiovascular injuries. Method: Forty Sprague Dawley (SD) rats were randomly divided into five groups: a saline control group; a PM2.5 exposure group; and low-, middle-, and high-dose Ses pretreatment groups. The SD rats were pretreated with different concentrations of Ses for 21 days. Afterward, the rats were exposed to ambient PM2.5 by intratracheal instillation every other day for a total of three times. The levels of inflammatory markers, including tumor necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1β), and interleukin-6 (IL-6), and indicators related to oxidative responses, such as total superoxide dismutase (SOD), reduced glutathione (GSH), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA), were measured in the blood and heart. The expression of ferroptosis-related proteins in heart tissues was determined via western blot and immunohistochemistry. Results: Ses pretreatment substantially ameliorated cardiovascular injuries in rats as evidenced by the decrease in the pathological score and collagen area. The decreased levels of SOD, GSH, and GSH-Px in the heart and serum were inhibited by Ses. In addition, Ses not only notably increased the activity of antioxidant enzymes but also reduced the levels of MDA, CK, LDH, CK-MB, IL-6, TNF-α, IL-1β, and IL-6. Furthermore, Ses pretreatment upregulated the expression levels of GPX4, SLC7A11, TFRC, and FPN1 and inhibited the expression levels of FTH1 and FTL. Conclusion: Ses pretreatment could ameliorate PM2.5-induced cardiovascular injuries perhaps by inhibiting ferroptosis. Therefore, Ses pretreatment may be a novel strategy for the prevention and treatment of PM2.5-induced cardiovascular injury.

研究领域: 药理学 · 心脏病学 · 毒理学 · 环境健康
✓ 已验证 DOI PubMed 高影响因子
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Biomaterials Advances · 2026 · IF 6.7

Acid-responsive cobalt-doped ZIF-8 nanoplatform potentiates ferroptosis in osteosarcoma by disrupting the PSMD14/SLC7A11 axis

Yong Zheng,Yong Tao,Fuqiang Tan,Keyi Feng,Fei Xie,Shasha Shi,Yunsheng Ou

In vitro : CPP reduced 143B cell viability by ~50% at 30 µg/mL with low toxicity to normal osteoblasts. • In vivo : CPP reduced xenograft tumor volume by ~80% and showed good biosafety in histology and serum tests. • Mechanism: CPP induced ROS accumulation, GSH depletion, SLC7A11/GPX4 downregulation, and ferroptotic mitochondrial damage. Ferroptosis induction represents a promising antitumor strategy, yet osteosarcoma cells frequently resist ferroptosis through the PSMD14-mediated stabilization of SLC7A11. Here, we report an acid-responsive cobalt-doped ZIF-8 nanoplatform loaded with 1, 10-phenanthroline and coated with PEG (denoted as CPP) that simultaneously amplifies oxidative stress and dismantles the PSMD14/SLC7A11 antioxidant axis. Upon exposure to the acidic tumor microenvironment, the ZIF-8 framework degrades, releasing Co 2+ ions that catalyze Fenton-like reactions to generate hydroxyl radicals (•OH) and initiate lipid peroxidation. Concurrently, 1, 10-phenanthroline chelates the catalytic Zn 2+ of PSMD14, abolishing its deubiquitinase activity and thereby promoting ubiquitin-dependent degradation of SLC7A11, which depletes intracellular glutathione (GSH). Physicochemical characterization confirmed the successful construction of CPP nanoparticles (~100 nm) with a drug loading efficiency of 14.76% and pH-triggered Co 2+ release. In vitro , CPP was efficiently internalized by 143B osteosarcoma cells and exhibited dose-dependent cytotoxicity with markedly elevated reactive oxygen species (ROS), malondialdehyde (MDA) accumulation, lipid peroxidation, mitochondrial depolarization, and downregulation of SLC7A11 and GPX4, collectively supporting ferroptosis. CPP also significantly suppressed osteosarcoma cell invasion. In a subcutaneous 143B xenograft model, intravenous CPP administration reduced tumor volume by approximately 80% relative to controls, with pronounced tumor necrosis, proliferation inhibition, and decreased SLC7A11/GPX4 expression in tumor tissues, while maintaining favorable biosafety. These findings establish CPP as a dual-action nanoplatform for ferroptosis-based osteosarcoma therapy.

✓ 已验证 DOI PubMed 高影响因子
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Cell Communication and Signaling · 2024 ·Vol. 22 ·期 1 ·1-20 · IF 8.2

Mitochondria-derived methylmalonic acid aggravates ischemia–reperfusion injury by activating reactive oxygen species-dependent ferroptosis

Guo Junchen,Wang Shanjie,Wan Xin,Liu Xiaoxuan,Wang Zeng,Liang Chenchen,Zhang Zhenming,Wang Ye,Yan Miao,Wu Pengyan,Fang Shaohong,Yu Bo

Ferroptosis is a regulatory cell death process pivotal in myocardial ischemia–reperfusion (I/R) injury. However, the precise mechanism underlying myocardial ferroptosis remains less known. In this study, we investigated the pathophysiological mechanisms of methylmalonic acid (MMA) associated with ferroptosis activation in cardiomyocytes after I/R. We found an increase level of MMA in patients with acute myocardial injury after reperfusion and AC16 cells under hypoxia/reoxygenation (H/R) condition. MMA treatment was found to be associated with excessive oxidative stress in cardiomyocytes, leading to ferroptosis-related myocardial injury. In mice with I/R injury, MMA treatment aggravated myocardial oxidative stress and ferroptosis, which amplified the myocardial infarct size and cardiac dysfunction. Mechanistically, MMA promoted NOX2/4 expression to increase reactive oxygen species (ROS) production in cardiomyocytes, aggravating myocardial injury. Notably, the increased ROS further activated ferroptosis by inhibiting solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4) expression. In addition, MMA decreased the ectopic nuclear distribution of nuclear factor E2-related factor 2 (NRF2) by increasing the interaction between NRF2 and kelch-like ECH-associated protein 1 (KEAP1). This impeded the activation of GPX4/SLC7A11, downstream of NRF2, activating ferroptosis and aggravating myocardial cell injury. Collectively, our study indicates that MMA activates oxidative stress and ROS generation, which induces ferroptosis to exacerbate cardiomyocyte injury in an I/R model. These findings may provide a new perspective for the clinical treatment of I/R injury and warrant further investigation.

研究领域: 心脏病学 · 细胞生物学 · 病理生理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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EUROPEAN JOURNAL OF PHARMACOLOGY · 2024 · IF 4.2

Protecting against ferroptosis in hyperuricemic nephropathy: The potential of ferrostatin-1 and its inhibitory effect on URAT1

Yongmei Li,Fengxin Zheng,Shiqi Zhong,Kunlu Zhao,Hui Liao,Jiacheng Liang,Qiang Zheng,Huicong Wu,Shifan Zhang,Ying Cao,Ting Wu,Jianxin Pang

Hyperuricemic nephropathy (HN) is characterized by renal fibrosis and tubular necrosis caused by elevated uric acid levels. Ferroptosis, an iron-dependent type of cell death, has been implicated in the pathogenesis of kidney diseases. The objective of this study was to explore the role of ferroptosis in HN and the impact of a ferroptosis inhibitor, ferrostatin-1 (Fer-1). The study combined adenine and potassium oxonate administration to establish a HN model in mice and treated HK-2 cells with uric acid to simulate HN conditions. The effects of Fer-1 on the renal function, fibrosis, and ferroptosis-associated molecules were investigated in HN mice and HK-2 cells treated with uric acid. The HN mice presented with renal dysfunction characterized by elevated tissue iron levels and diminished antioxidant capacity. There was a significant decrease in the mRNA and protein expression levels of SLC7A11, GPX4, FTL-1 and FTH-1 in HN mice. Conversely, treatment with Fer-1 reduced serum uric acid, serum creatinine, and blood urea nitrogen, while increasing uric acid levels in urine. Fer-1 administration also ameliorated renal tubule dilatation and reduced renal collagen deposition. Additionally, Fer-1 also upregulated the expression levels of SLC7A11, GPX4, FTL-1, and FTH-1, decreased malondialdehyde and iron levels, and enhanced glutathione in vivo and in vitro . Furthermore, we first found that Fer-1 exhibited a dose-dependent inhibition of URAT1, with the IC 50 value of 7.37 ± 0.66 μM. Collectively, the current study demonstrated that Fer-1 effectively mitigated HN by suppressing ferroptosis, highlighting the potential of targeting ferroptosis as a therapeutic strategy for HN.

研究领域: 肾病学 · 药理学 · 细胞生物学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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