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BMC Complementary Medicine and Therapies · 2025 ·Vol. 25 ·期 1 ·451 · IF 3.4

Potential mechanism underlying HXSJ decoction in the treatment of venous leg ulcers: based on the association between venous leg ulcers and ferroptosis

Pan Sunfeng,Xiong Lie,Li Jiakun,Wang Zhenjun,Su Yujuan,Fang Gaofeng,Zhu Minda,Shi Hanqiang,Li Jiayan,Liu Zhaoyan,Han Chunmao,Shi Yanbo

Background Venous leg ulcer (VLU) is among the most severe clinical manifestations of chronic venous disease (CVD) and imposes substantial burdens on both patients and society. VLU pathogenesis is closely associated with the impairment of vascular endothelial cells. In this study, tissue samples from the patients’ s skins around wound at different stages of CVD were collected during operation and used to elucidate the involvement of ferroptosis in the pathogenesis of VLU. Also the potential mechanism through which Huoxue Shengji (HXSJ) decoction alleviates ferroptosis in human umbilical vein endothelial cells (HUVECs) was investigated. Methods During surgical procedure such as great saphenous vein high ligation and stripping surgery, matched skin tissues from the normal, hyperpigmentation (HPT), lipodermatosclerosis (LDS), and VLU regions were collected from 10 patients with VLU, and the levels of iron and glutathione peroxidase 4 (GPX4) were quantified to evaluate ferroptosis. In vitro, HUVECs were used to iron overload induction using exogenous 100 µM ferric ammonium citrate (FAC) or 100 µM hemin, or ferroptosis induction with 10 µM erastin, and treated with 10 µg/ml HXSJ decoction for 24 h. Subsequently, lipid peroxidation (LPO) damage, mitochondrial function, and key genes involved in ferroptosis were assessed. Results Iron deposition in the affected skin of patients with CVD gradually increased before progression to VLU and significantly decreased during the VLU stage. Moreover, GPX4 expression increased significantly in the HPT stage but was gradually suppressed with further deterioration of CVD. The in vitro results indicated that in both the iron overload and ferroptosis models, HXSJ decoction effectively upregulated the expression of nuclear factor erythroid 2-related factor 2 (Nrf2), solute carrier family 7 member 11 (SLC7A11, xCT), and GPX4, which was accompanied by the inhibition of malondialdehyde and protein carbonylation production, the alleviation of ferrous ion accumulation, and the restoration of mitochondrial function. Conclusions This study demonstrated that iron accumulation-mediated inactivation of GPX4 serves as a crucial mechanism in VLU formation through ferroptosis induction. Notably, the therapeutic mechanism through which HXSJ decoction alleviates ferroptosis involves Nrf2/xCT/GPX4 pathway activation and a reduction in ferrous ion accumulation. These findings may provide novel insights into VLU pathogenesis and give possible reason for developing traditional Chinese medicine therapies targeting ferroptosis and VLUs. Graphical

CAS / MDL: 16009-13-5
✓ 已验证 产品关联 DOI PubMed 高影响因子
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TOXICOLOGY AND APPLIED PHARMACOLOGY · 2025 · IF 3.4

Atraric acid attenuates chronic intermittent hypoxia-induced lung injury by inhibiting ferroptosis through activation of the NRF2 pathway

Jingjing Chen,Lu Zhou,Mengxin Li,Jun Wang,Yaru Chen,Jing Xia,Yue Lin,Huizhen Chen,Zibo Dong

Chronic Intermittent Hypoxia (CIH) is a central pathological feature of diseases such as obstructive sleep apnea hypopnea syndrome (OSAHS), which induces oxidative stress in lung tissues and leads to lung injury. Atraric acid (AA), a lichen-derived compound, has been reported to possess anti-inflammatory and antioxidant activities. In this study, we investigated the functions and mechanisms of AA in CIH-induced lung injury by constructing a CIH mouse model and an in vitro hypoxia/reoxygenation model in MLE-12 cells. Various methods were employed, including hematoxylin and eosin (H&E) staining, biochemical assay kits, quantitative polymerase chain reaction (qPCR) analysis, protein blotting, immunofluorescence, and flow cytometry. The results showed that AA pretreatment significantly attenuated pathological injury of mouse lung tissue, reduced pulmonary edema, reactive oxygen species (ROS) and malondialdehyde production, as well as the depletion of total antioxidant capacity, catalase and glutathione, and lowered the expression levels of inflammatory factors. Mechanistic studies showed that AA up-regulated solute transport family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4) expression and down-regulated prostaglandin-endoperoxide synthase 2 (PTGS2) through activation of the Nrf2 signaling pathway, whereas the Nrf2 inhibitor ML385 completely blocked this protective effect. In conclusion, the present study demonstrates that AA targets the Nrf2 axis, attenuated CIH-induced inflammation, alleviates ROS accumulation, and blocks the vicious cycle of oxidative stress, ferroptosis, and inflammation, making it a promising therapeutic strategy for the treatment of CIH-induced lung injury.

CAS / MDL: 4707-47-5
研究领域: 药理学 · 分子生物学 · 呼吸病学 · 生物化学 · 细胞生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Communications Biology · 2025 ·Vol. 8 ·期 1 ·1-16 · IF 5.1

Per2 deficiency in microglia alleviates motor dysfunction by inhibiting ferroptosis in spinal cord injury

Bie Pengfei,Su Dongpo,Gao Yang,Wu Liang,Niu Zhanfeng,Zhao Yanbin,He He,Jiang Zhanfeng,Zeng Zhong,Zhang Yaolin,Fan Heng,Xia Hechun

Microglia play significant roles in spinal cord injury (SCI) progression. Previous studies have suggested that ferroptosis plays a crucial role in exacerbating neuronal death following SCI; however, the role of microglial ferroptosis in SCI and the underlying mechanisms remain elusive. Here, we elucidate that lipid droplets accumulate in microglia to facilitate microglial ferroptosis after SCI. Notably, microglial ferroptosis peaks at 3 days post-injury, after which it decreases. Microglial Period 2 (Per2) expression is elevated after SCI in vivo; this change is highly synchronized with the changes in microglial ferroptosis. Microglia-specific Per2 knockout promoted neurological function recovery by suppressing microglial ferroptosis. In vitro, Per2 overexpression and deficiency amplified and mitigated microglial ferroptosis, respectively. RNA-seq indicated that Gpx4 was downregulated by Per2. Coimmunoprecipitation demonstrated that Per2 directly interacted with PPARα. Overall, our results indicate that Per2 determines the susceptibility of microglial ferroptosis via the PPARα-Gpx4 axis after SCI.

CAS / MDL: 8001-30-7
研究领域: 神经科学 · 细胞生物学 · 分子生物学 · 免疫学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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CHEMICO-BIOLOGICAL INTERACTIONS · 2023 · IF 5.1

Shikonin suppresses small cell lung cancer growth via inducing ATF3-mediated ferroptosis to promote ROS accumulation

Xinyu Qian,Lin Zhu,Mengzhen Xu,Haoli Liu,Xinyan Yu,Qiuyue Shao,Jing Qin

Small cell lung cancer (SCLC) is a subtype of lung cancer with a very poor overall survival rate due to its extremely high proliferation and metastasis predilection. Shikonin is an active ingredient extracted from the roots of Lithospermum erythrorhizon, and exerts multiple anti-tumor functions in many cancers. In the present study, the role and underlying mechanism of shikonin in SCLC were investigated for the first time. We found that shikonin effectively suppressed cell proliferation , apoptosis , migration, invasion, and colony formation and slightly induced apoptosis in SCLC cells. Further experiment indicated the shikonin could also induced ferroptosis in SCLC cells. Shikonin treatment effectively suppressed the activation of ERK, the expression of ferroptosis inhibitor GPX4 , and elevated the level of 4-HNE, a biomarker of ferroptosis. Both total ROS and lipid ROS were increased, while the GSH levels were decreased in SCLC cells after shikonin treatment. More importantly, our data identified that the function of shikonin was dependent on the up-regulation of ATF3 by performing rescue experiments using shRNA to silence the expression of ATF3, especially in the total and lipid ROS accumulaiton. Xenograft model was established using SBC-2 cells, and the results revealed that shikonin also significantly inhibited tumor growth by inducing ferroptosis. Finally, our data further confirmed that shikonin activated ATF3 transcription by impairing the recruitment of HDAC1 mediated by c-myc on the ATF3 promoter , and subsequently elevating of histone acetylation . Our data documented that shikonin suppressed SCLC by inducing ferroptosis in a ATF3-dependent manner. Shikonin upregulated the expression of ATF3 expression via promoting the histone acetylation by inhibiting c-myc-mediated HDAC1 binding on ATF3 promoter.

CAS / MDL: 548-62-9
研究领域: 肿瘤学 · 分子生物学 · 细胞生物学 · 药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY · 2023 · IF 6.8

Ferroptosis mediates decabromodiphenyl ether-induced liver damage and inflammation

Yan Wang,Yue Zhang,Jinglong Xue,Leqiang Gao,Xiangyang Li,Moxuan Zhao,Dong Zhao,Xianqing Zhou

Decabromodiphenyl ether (BDE-209) is an environmental toxin. Increasing evidence showed that BDE-209 exposure induced liver injury, but the mechanism still remains unknown. The present study explored the effect and mechanism of ferroptosis on hepatotoxicity triggered by BDE-209 in vivo and in vitro . In vivo experiment, ICR mice were exposed to BDE-209 for 50 days, and then recovered for 50 days; HepG2 and L02 cells were treated with BDE-209 or/and ferrostatin-1 (Fer-1) for establishing in vitro model. In vivo , the results showed that BDE-209 accumulated in liver and induced liver damage, increased Fe 2+ and MDA contents, and blocked the activation of SLC7A11/GSH/GPX4 pathway in liver; BDE-209 also activated IKK/IκB/NF-κB pathway and elevated inflammatory cytokines levels in liver after exposure for 50 days. After BDE-209 stopping exposure 50 days, the severity of liver damage, ferroptosis and inflammatory response were still higher than the corresponding control group. In vitro , ferroptosis inhibitor Fer-1 rescued ferroptotic damage and attenuated cell death in BDE-209-treated HepG2 and L02 cells. In addition, Fer-1 reversed the activation of IKK/IκB/NF-κB pathway and the increase of pro-inflammatory cytokines levels in BDE-209-treated HepG2 and L02 cells. Together, the above results suggested that BDE-209 induced tissue damage and inflammatory response by activating ferroptosis through increasing iron-dependent lipid peroxidation and blocking the activation of SLC7A11/GSH/GPX4 pathway in liver, indicating that ferroptosis is a potential mechanism for BDE-209-induced hepatotoxicity.

研究领域: 毒理学 · 肝病学 · 细胞生物学 · 环境科学
✓ 已验证 DOI PubMed 高影响因子
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PHYTOMEDICINE · 2025 · IF 8.3

Yinaoxin granule alleviates cerebral ischemia-reperfusion injury by ferroptosis inhibition through Nrf2 pathway activation

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.

CAS / MDL: 67-47-0
研究领域: 神经科学 · 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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Bioengineering & Translational Medicine · 2025 · IF 5.7

Engineering biomimetic nanovesicles for PEBP1 mRNA delivery to inhibit ferroptosis in abdominal aortic aneurysm

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.

CAS / MDL: 9002-93-1
研究领域: 生物医学工程 · 纳米技术 · 分子生物学 · 心血管疾病研究 · 基因治疗
✓ 已验证 产品关联 DOI PubMed 高影响因子
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BIOMATERIALS · 2024 · IF 12.8

A ferroptosis amplifier based on triple-enhanced lipid peroxides accumulation strategy for effective pancreatic cancer therapy

Mengyao Chen,Xiaohan Tong,Yanting Sun,Chunyan Dong,Chen Li,Chunhui Wang,Minyi Zhang,Yixuan Wen,Pinting Ye,Ruihao Li,Jie Wan,Shujing Liang,Shuo Shi

As an iron dependent regulatory cell death process driven by excessive lipid peroxides (LPO), ferroptosis is recognized as a powerful weapon for pancreatic cancer (PC) therapy. However, the tumor microenvironment (TME) with hypoxia and elevated glutathione (GSH) expression not only inhibits LPO production, but also induces glutathione peroxidase 4 (GPX4) mediated LPO clearance, which greatly compromise the therapeutic outcomes of ferroptosis. To address these issues, herein, a novel triple-enhanced ferroptosis amplifier (denoted as Zal@HM-PTBC) is rationally designed. After intravenous injection, the overexpressed H 2 O 2 /GSH in TME induces the collapse of Zal@HM-PTBC and triggers the production of oxygen and reactive oxygen species (ROS), which synergistically amplify the degree of lipid peroxidation (broaden sources). Concurrently, GSH consumption because of the degradation of the hollow manganese dioxide (HM) significantly weakens the activity of GPX4, resulting in a decrease in LPO clearance (reduce expenditure). Moreover, the loading and site-directed release of zalcitabine further promotes autophagy-dependent LPO accumulation (enhance effectiveness). Both in vitro and in vivo results validated that the ferroptosis amplifier demonstrated superior specificity and favorable therapeutic responses. Overall, this triple-enhanced LPO accumulation strategy demonstrates the ability to facilitate the efficacy of ferroptosis, injecting vigorous vitality into the treatment of PC.

CAS / MDL: 17814-85-6
研究领域: 癌症生物学 · 药理学 · 治疗学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Theranostics · 2019 · IF 8.063

Aldehyde dehydrogenase 1A1 confers erlotinib resistance via facilitating the reactive oxygen species-reactive carbonyl species metabolic pathway in lung adenocarcinomas

Hui-Min Lei,Ke-Ren Zhang,Cong Hui Wang,Yang Wang,Guang-Lei Zhuang,Li-Ming Lu,Jian Zhang,Ying Shen,Hong-Zhuan Chen,Liang Zhu

Background: Acquired resistance to epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (TKIs) such as erlotinib is a major challenge to achieve an overall clinical benefit of the targeted therapy. Recently, aldehyde dehydrogenase 1 (ALDH1) induction has been found to render lung adenocarcinomas resistant to EGFR-TKIs, and targeting ALDH1A1 becomes a novel strategy to overcome resistance. However, the molecular mechanism underlying such effect remains poorly understood. Methods: Comprehensive assays were performed in a panel of lung adenocarcinoma cell lines and xenografts that acquired resistance to erlotinib. Cancer phenotype was evaluated by cell viability, apoptosis, migration, and epithelial-mesenchymal transition analysis in vitro , tumorsphere formation analysis ex vivo , and tumor growth and dissemination analysis in vivo . Reactive oxygen species (ROS) and reactive carbonyl species (RCS) were detected based on fluorescent oxidation indicator and liquid chromatography coupled to mass spectrometry, respectively. Protein target was suppressed by RNA interference and pharmacological inhibition or ecto-overexpressed by lentivirus-based cloning. Gene promoter activity was measured by dual-luciferase reporting assay. Results: Knockdown or pharmacological inhibition of ALDH1A1 overcame erlotinib resistance in vitro and in vivo . ALDH1A1 overexpression was sufficient to induce erlotinib resistance. Metabolomic analysis demonstrated lower ROS-RCS levels in ALDH1A1-addicted, erlotinib-resistant cells; in line with this, key enzymes for metabolizing ROS and RCS, SOD2 and GPX4, respectively, were upregulated in these cells. Knockdown of SOD2 or GPX4 re-sensitized the resistant cells to erlotinib and the effect was abrogated by ROS-RCS scavenging and mimicked by ROS-RCS induction. The ALDH1A1 overexpressed cells, though resisted erlotinib, were more sensitive to SOD2 or GPX4 knockdown. The ALDH1A1 effect on erlotinib resistance was abrogated by ROS-RCS induction and mimicked by ROS-RCS scavenging. Detection of GPX4 and SOD2 expression and analysis of promoter activities of GPX4 and SOD2 under the condition of suppression or overexpression of ALDH1A1 demonstrated that the RCS-ROS-metabolic pathway was controlled by the ALDH1A1-GPX4-SOD2 axis. The ROS-RCS metabolic dependence mechanism in ALDH1A1-induced resistance was confirmed in vivo . Analysis of public databases showed that in patients undergoing chemotherapy, those with high co-expression of ALDH1A1, GPX4, and SOD2 had a lower probability of survival. Conclusions: ALDH1A1 confers erlotinib resistance by facilitating the ROS-RCS metabolic pathway. ALDH1A1-induced upregulation of SOD2 and GPX4, as well as ALDH1A1 itself, mitigated erlotinib-induced oxidative and carbonyl stress, and imparted the TKI resistance. The elucidation of previously unrecognized metabolic mechanism underlying erlotinib resistance provides new insight into the biology of molecular targeted therapies and help to design improved pharmacological strategies to overcome the drug resistance.

CAS / MDL: 564-25-0
研究领域: 肿瘤学 · 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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JOURNAL OF PHARMACOLOGICAL SCIENCES · 2022 · IF 3.578

Artesunate induces ferroptosis via modulation of p38 and ERK signaling pathway in glioblastoma cells

Qingxin Song,Shanxin Peng,Fengyuan Che,Xiaosong Zhu

Ferroptosis is implicated in various tumors, including glioblastoma. Artesunate (ART), an anti-malarial drug, exerted antitumor properties in several cancer types. However, the role of ferroptosis in the inhibiting effect of artesunate on glioblastoma remains unclear. The purpose of this study was to investigate the effects of ART on the ferroptosis of glioblastoma and to elucidate the underlying mechanisms. We found that ART inhibited the proliferation of glioblastoma cells in vitro and glioblastoma tumorigenesis in vivo . Characteristic changes of ferroptosis were observed in ART group, including GSH depletion, lipid peroxidation and iron overload. Meanwhile, the protein level of GPX4 were lower in ART group than that in control group. Ferrostatin-1, a ferroptosis inhibitor, could rescue the cell death induced by ART in U251 cells. Further examination of the mechanism revealed that the effect of ART on ferroptosis was partially governed by regulating iron homeostasis and p38 and ERK signaling pathway. These findings support that ART triggers ferroptosis in glioblastoma and might be a potential therapeutic agent for glioblastoma treatment.

研究领域: 肿瘤学 · 药理学 · 细胞生物学 · 分子生物学
✓ 已验证 DOI PubMed 高影响因子
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PHYTOMEDICINE · 2025 · IF 8.3

Sophoricoside ameliorates LPS/D-GalN-induced acute liver failure by inhibiting ferroptosis via activation of the Nrf2/GPX4 signaling pathway

Shaowei Zheng,Ya Gao,Houkang Cao,Kai Guo,Wenxiu Wang,Guiying Lu,Shasha Wang,Mingli Zhong,Bo Li,Kefeng Zhang,Riming Wei,Jianzhao Wu

Background Acute liver failure (ALF) is associated with ferroptosis and currently lacks specific drugs and therapies. Previous studies have shown the hepatoprotective activity of Sophoricoside (SOP) in diverse models of hepatic injury. However, the role of SOP in ALF caused by lipopolysaccharide (LPS)/D-galactosamine (D-GalN) is still unknown. Purpose To investigate the therapeutic effects of SOP on ALF and its underlying mechanisms of action. Methods In vivo , an ALF mouse model was established using LPS and D-GalN. RNA sequencing was used to identify differentially expressed genes, which were subsequently confirmed by Western blot and qRT-PCR. In vitro , erastin was used to induce ferroptosis in HepG2 cells. Subsequently, the cells were treated with SOP, the nuclear factor erythroid 2-related factor 2 (Nrf2) inhibitor ML385, and the glutathione peroxidase 4 (GPX4) inhibitor RSL3. Additionally, siRNA was utilized for Nrf2 knockdown. Measurements of biochemical markers, reactive oxygen species (ROS) levels, alterations in mitochondrial membrane potential, qRT-PCR, and Western blot analysis were used to confirm the effectiveness and mechanism of SOP. Finally, the interaction between SOP and Nrf2 was verified through molecular docking, surface plasmon resonance (SPR), and cellular thermal shift assay (CETSA). Results In vivo , experimental analysis revealed that SOP ameliorated liver injury, hepatocyte Fe 2+ accumulation, and oxidative stress. RNA sequencing analysis indicated that SOP reversed the abnormal expression of genes related to Nrf2 and the ferroptosis pathway. In vitro , SOP ameliorated erastin-induced oxidative stress, ROS accumulation, and mitochondrial membrane potential loss. After the application of pharmacological inhibitors and siRNA knockdown, the SOP’s inhibitory effect on ferroptosis was antagonized. Conclusion SOP alleviated ALF by activating the Nrf2/GPX4 signaling pathway, thereby mitigating oxidative stress and ferroptosis.

CAS / MDL: 1772-03-8
研究领域: 药理学 · 分子生物学 · 肝病学 · 细胞生物学 · 生物化学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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FREE RADICAL BIOLOGY AND MEDICINE · 2026 · IF 8

Computational-Experimental Integration Reveals PPARγ/Nrf2-GPX4 Dual-Targeting by Combined Selenomethionine-Magnolol as a Novel Therapy for Sarcopenic Obesity

Zhe Li,Bingbing Liu,Lianghong Zhou,Na Chen,Yi Wang,Su Yang,Xinyi Fan,Yuan Wang,Xiaodong Chen

Sarcopenic obesity (SO), characterized by concurrent muscle loss and excessive adiposity, lacks effective interventions. This study investigated the enhanced effects of the selenomethionine (Se-Met) and magnolol (Mag) combination against SO using an integrated computational-experimental approach. Network pharmacology and molecular docking predicted peroxisome proliferator-activated receptor γ (PPARγ) and the nuclear factor erythroid 2-related factor 2 - glutathione peroxidase 4 (Nrf2 - GPX4) axis as core targets, which was corroborated by single-cell transcriptomic data analysis showing their co-expression in muscle progenitor cells. In high-fat diet ‌(HFD)-fed mice, the combined Se-Met and Mag treatment ameliorated metabolic dysregulation, reduced intramuscular lipid deposition, and improved muscle function more effectively than monotherapies. In C2C12 myotubes, the combination co-activated PPARγ to enhance lipid clearance and potentiated the Nrf2-GPX4 antioxidant axis. Notably, it modulated ferroptosis-related signaling by downregulating acyl-CoA synthetase long-chain family member 4 (ACSL4) and upregulating ferritin heavy chain 1 (FTH1) and heme oxygenase-1 (HO-1), an effect abolished by Nrf2 inhibition. Pharmacological inhibition of either PPARγ or Nrf2 reversed the protective benefits. Our findings reveal that Se-Met and Mag in combination target PPARγ and Nrf2-GPX4 pathways while regulating ferroptosis-related signaling to alleviate ferroptosis-associated markers, with phenotypic characteristics consistent with ferroptosis inhibition, thereby offering a novel nutraceutical strategy for SO.

✓ 已验证 DOI PubMed 高影响因子
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