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Slc7a11
Exploration · 2024 · IF 0

A pH responsive nanocomposite for combination sonodynamic-immunotherapy with ferroptosis and calcium ion overload via SLC7A11/ACSL4/LPCAT3 pathway

Xue Bai,Jun Kang,Silong Wei,Yun Wang,Yangsui Liu,Bo Yuan,Qian Lu,Huansong Li,Jun Yan,Xi Yang,Jin Chang

Sonodynamic therapy offers a non-invasive approach to induce the death of tumor cells. By harnessing ultrasound waves in tandem with sonosensitizers, this method produces reactive oxygen species (ROS) that inflict oxidative damage upon tumor cells, subsequently causing their demise. Ferroptosis is a regulatory form of cell death that differs from other forms, characterized by iron accumulation, ROS accumulation, and lipid peroxidation. In the presented research, a nanoparticle formulation, parthenolide/ICG-CaCO 3 @lipid (PTL/ICG-CaCO 3 @Lip), has been engineered to amplify ferroptosis in tumor cells, positioning it as a potent agent for sonodynamic cancer immunotherapy. This nanoparticle significantly augments ROS levels within tumor cells, inducing oxidative stress that leads to cell death. The therapeutic potential of PTL/ICG-CaCO 3 @Lip, both in vivo and in vitro, has been convincingly demonstrated. Furthermore, RNA-seq analysis insights revealed that PTL/ICG-CaCO 3 @Lip facilitates tumor cell ferroptosis by regulating P53 to downregulate SLC7A11 protein expression, thereby inhibiting the glutamate-cystine antiporter system Xc − and stimulating ACSL4/LPCAT3 pathways. This pioneering work uncovers an innovative strategy for combatting tumors, leveraging enhanced oxidative stress to promote cell ferroptosis, and paves the way for groundbreaking cancer immunotherapeutic interventions.

研究领域: 肿瘤学 · 生物医学工程 · 药理学 · 分子生物学
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JOURNAL OF CONTROLLED RELEASE · 2024 · IF 10.5

Apigenin-7-glucoside-loaded nanoparticle alleviates intestinal ischemia-reperfusion by ATF3/SLC7A11-mediated ferroptosis

Xuerong Zhao,Zhuoya Wang,Guanlin Wu,Lianhong Yin,Lina Xu,Ning Wang,Jinyong Peng

Intestinal ischemia reperfusion injury (II/R injury) is a common and intractable pathophysiological process in critical patients, for which exploring new treatments and mechanisms is of great importance to improve treatment outcomes. Apigenin-7-O-Glucoside (AGL) is a sugar derivative of apigenin natural product with various pharmacological activities to protect against intestinal diseases . In this study, we synthesized two amphiphilic molecules, namely DTPA-N10–10 and mPEG-TK-DA, which can scavenge free radicals and reactive oxygen species (ROS). They were successfully encapsulated AGL through self-assembly, resulting in the formation of multi-site ROS scavenging nanoparticles called PDN@AGL. In vitro and in vivo experiments demonstrated that PDN@AGL could protect intestinal tissues by reducing lipid peroxidation, lowering ROS levels and inhibiting ferroptosis during II/R injury. Furthermore, our study revealed, for the first time, that the regulation of the ATF3/SLC7A11 pathway by PDN@AGL may play a crucial role in mitigating II/R injury. In conclusion, our study confirmed the beneficial effects of PDN@AGL in combating II/R injury through the ATF3/SLC7A11-mediated regulation of ferroptosis and oxidative stress. These findings lay the groundwork for the potential application of PDN@AGL in the treatment of II/R injury.

研究领域: 药理学 · 纳米技术 · 胃肠病学 · 分子生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY · 2021 · IF 6.291

LncRNA OIP5-AS1 inhibits ferroptosis in prostate cancer with long-term cadmium exposure through miR-128-3p/SLC7A11 signaling

Yangyi Zhang,Shanqi Guo,Shuo Wang,Xiaojian Li,Dingkun Hou,Hongzheng Li,Lili Wang,Yong Xu,Baojie Ma,Haitao Wang,Xingkang Jiang

Previous studies suggest that cadmium (Cd) is one of the causative factors of prostate cancer (PCa), but the effect of chronic Cd exposure on PCa progression remains unclear. Besides, whether long noncoding RNAs (lncRNAs) are involved in the regulation of prolonged exposure to Cd in PCa needs to be elucidated. In the present study, we found that the serum concentration of Cd in PCa patients was positively correlated with the Gleason score and tumor-node-metastasis (TNM) classification. To simulate chronic Cd exposure in PCa, we subjected PC3 and DU145 cells to long-term, low-dose Cd exposure and further examined tumor behavior. Functional studies identified that chronic Cd exposure promoted cell growth and ferroptosis resistance in vitro and in vivo. Furthermore, we found that lncRNA OIP5-AS1 expression was greatly elevated in PC3 and DU145 cells upon chronic Cd exposure. Dysregulation of OIP5-AS1 expression mediated cell growth and Cd-induced ferroptosis. Mechanistically, we demonstrated that OIP5-AS1 served as an endogenous sponge of miR-128-3p to regulate the expression of SLC7A11, a surrogate marker of ferroptosis. Moreover, miR-128-3p decreased cell viability by enhancing ferroptosis. Taken together, our data indicate that lncRNA OIP5-AS1 promotes PCa progression and ferroptosis resistance through miR-128-3p/SLC7A11 signaling.

CAS / MDL: 10108-64-2
研究领域: 肿瘤学 · 分子生物学 · 毒理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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JOURNAL OF NEUROSCIENCE RESEARCH · 2023 · IF 4.2

Iron overload facilitates neonatal hypoxic–ischemic brain damage via SLC7A11-mediated ferroptosis

Xuying Tan,Ting Zhang,Xuejiao Ding,Xiaopeng Zhao,Qianjun Liu,Zhenglong Xia,Qihua Cao,Feng Yan,Li Chen,Mingwei Zhu,Yaping Tang,Yanyan Song

Oxidative damage and cell death are involved in the pathogenesis of hypoxic–ischemic brain damage (HIBD). Ferroptosis is a newly identified mode of cell death that results from the oxidative damage induced by excessive iron. In HIBD, iron accumulates in brain tissues due to the massive destruction of red blood cells and increased permeability of the blood brain barrier vasculature, which can trigger ferroptosis. Ferroptosis is implicated in various diseases involving neuronal injury; however, the roles of iron and ferroptosis in HIBD have not been identified. In the present study, we investigated the role of iron overload in neuronal ferroptosis both in HIBD rat models and in oxygen- and glucose-deprived (OGD) SH-SY5Y cells. We observed that iron deposition in the cerebral cortex was significantly increased in HIBD rats. Features of ferroptosis such as shrunken mitochondria, increased MDA (malondialdehyde) levels, and reduced solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4) expression were observed in the cerebral cortex of HIBD rats. Administration of an iron chelator in HIBD rats upregulated SLC7A11 expression and alleviated neuronal ferroptosis in cerebral cortex tissue. Additionally, overexpression of SLC7A11 in SH-SY5Y cells increased cell viability and attenuated OGD-induced ferroptosis. Our results demonstrate that iron overload induces neuronal ferroptosis by inhibiting SLC7A11 expression in HIBD. Inhibition of neuronal ferroptosis may be a promising strategy to alleviate brain damage in HIBD.

CAS / MDL: 1185-57-5
研究领域: 神经科学 · 细胞生物学 · 儿科 · 药理学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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Biomolecules · 2025 ·Vol. 15 ·期 10 ·1353 · IF 4.8

METTL3-Driven m6A Epigenetic Remodeling of lncRNA-AU020206 Stabilizes SLC7A11 via YTHDC2 Attenuates Apoptosis and Ferroptosis in Cerebral Ischemia/Reperfusion Injury

Hao Zhang,Yajin Guan,Meng Li,Yilin Wu,Xiaoou Sun

Cerebral ischemia/reperfusion (I/R) injury is a devastating neurological disorder with limited treatment options. Emerging evidence suggests that the N6-methyladenosine (m6A) modification and its regulatory factors play pivotal roles in the pathophysiology of I/R. This study aimed to elucidate the function of METTL3-mediated m6A modification of the long non-coding RNA (lncRNA) AU020206 in ferroptosis during cerebral I/R injury and to identify potential molecular targets for neuroprotection. A murine model of middle cerebral artery occlusion/reperfusion (MCAO/R) and N2a cells subjected to oxygen–glucose deprivation/reoxygenation (OGD/R) were established to assess m6A levels and ferroptosis-related changes. Effects of METTL3 overexpression and lncRNA-AU020206 silencing on neuronal apoptosis, inflammation, and ferroptosis were investigated in vitro and in vivo. The interaction between lncRNA-AU020206 and YTHDC2 and the resulting regulation of SLC7A11 mRNA stability and GPX4 expression were evaluated using molecular and biochemical assays. Both MCAO/R mice and OGD/R-treated N2a cells exhibited decreased m6A levels and upregulation of lncRNA-AU020206 accompanied by enhanced ferroptosis. METTL3 overexpression increased the m6A modification of AU020206, promoting its degradation and attenuating neuronal injury, whereas silencing AU020206 or overexpressing YTHDC2 decreased SLC7A11 mRNA stability and enhanced ferroptosis. Restoring the expression of SLC7A11/GPX4 can enhance cell viability, alleviate neuronal apoptosis, and reduce Fe2+overload. Disruption of the METTL3–AU020206–YTHDC2 axis abolished these neuroprotective effects. METTL3-mediated m6A modification of lncRNA-AU020206 restrained ferroptosis and neuronal injury in cerebral I/R by maintaining the stability of the SLC7A11/GPX4 axis via interactions with YTHDC2. Targeting this epitranscriptomic signalling pathway may represent a promising therapeutic strategy for the treatment of ischemic stroke and related neurological disorders.

CAS / MDL: 39450-01-6 A377916
研究领域: 神经生物学 · 表观遗传学 · 分子生物学 · 脑血管病学 · 细胞死亡机制 · RNA代谢 · 转化医学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS · 2025 · IF 3

Astaxanthin-loaded polylactic acid-glycolic acid nanoparticles alleviates atherosclerosis by suppressing macrophage ferroptosis via the NRF2/SLC7A11/GPX4 pathway

Mengying Jin,Xiao Chen,Lanzhuoying Zheng,Yuanyuan Peng,Mingying Lin,Ke Liang,Xinran Liu,Zihan Xu,Yiming Yang,Baozhu Wei,Jing Wan

Background Astaxanthin (ASX), a fat-soluble carotenoid mainly sourced from Haematococcus pluvialis, shows promise for clinical applications in chronic inflammatory diseases. This study investigates whether ASX can mitigate atherosclerosis (AS) by modulating macrophage ferroptosis and provides astaxanthin-loaded polylactic acid-glycolic acid nanoparticles (ASX-PLGA NPs) as comparison. Method ApoE−/− mice were fed a high-fat diet with ASX or statin intervention. Plaque area, lipid aggregation, collagen content, and ferroptosis-related indicators were assessed. Moreover, ASX-PLGA NPs were synthesized and characterized and were used to pretreat macrophages induced with oxidized low-density lipoprotein (ox-LDL). Indicators linked to ferroptosis and oxidative stress were detected. Finally, the expression of nuclear factor erythroid -related factor 2 (NRF2) was evaluated. Results ASX intervention significantly delayed the progression of AS plaques, characterized by reductions in plaque area and increased collagen fibers. The observed improvements in AS were consistent with statins. ASX-PLGA NPs demonstrate good safety and stability and have better therapeutic effects than ASX alone. Indicators linked to ferroptosis and oxidative stress were significantly improved in groups containing ASX in vivo and vitro. Additionally, ASX facilitated the nuclear translocation of NRF2, which could be attenuated with ML385, a specific inhibitor of NRF 2. Conclusion ASX-PLGA NPs have better therapeutic effects than ASX alone. The regulation of NRF2/SLC7A11/GPX4 represents a novel mechanism by which ASX can counteract ferroptosis and impede AS progression.

CAS / MDL: 26780-50-7
研究领域: 医学 · 药理学 · 生物化学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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JOURNAL OF ETHNOPHARMACOLOGY · 2025 · IF 5.4

Cryptotanshinone alleviates cerebral ischemia reperfusion injury by regulating ferroptosis through the PI3K/AKT/Nrf2 and SLC7A11/GPX4 signaling pathway

Nana Gao,Zongyu Huang,Jianjie Xie,Shuang Gao,Biaobiao Wang,Huicong Feng,Cuifen Bao,He Tian,Xia Liu

Ethnopharmacological relevance The Cryptotanshinone (CT) is a kind of Chinese medicine extracted from salvia miltiorrhiza, which has various pharmacological activities and is widely used in the treatment of diseases. Aim of the study The objective is to delve into the mechanism by which cryptotanshinone (CT) exerts its effects on rats with the middle cerebral artery occlusion/reperfusion (MCAO/R) model. Additionally, it aims to further assess the interplay between inflammation and oxidative stress, along with the underlying mechanism of CT's anti-ferroptosis function. Materials and methods We constructed the middle cerebral artery occlusion/reperfusion (MCAO/R) model in rats. The effects of cryptotanshinone (CT) were evaluated using 2,3,5 - triphenyltetrazolium chloride (TTC) staining, behavioral assays, immunofluorescence, hematoxylin - eosin (HE) staining, and Nissl staining. Additionally, in vitro, cell viability was assessed by the Cell Counting Kit - 8 (CCK - 8) assay following experimental dosing. Oxygen - glucose deprivation/oxidation (OGD/R) models were established in PC12 and BV2 cells. Flow cytometry was employed to detect cellular reactive oxygen species (ROS) expression. The activities of superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-px), andMitochondrial Membrane Potential Assay Kit with JC-1(JC-1) were measured using biochemical methods. Inflammatory factor levels were determined using enzyme-linked immunosorbent assay (ELISA) kits. Immunoblotting was used to detect the levels of rat phosphatidylinositol 3 - kinase (PI3K), phosphorylated-PI3K (P-PI3K), protein kinase B (AKT), phosphorylated - AKT (P-AKT), nuclear factor erythroid 2related factor 2 (Nrf2), solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4). Results In rats with the MCAO/R model, CT demonstrated the ability to decrease ROS levels, enhance the activity of glutathione (GSH), mitigate inflammation, augment the activity of glutathione peroxidase 4 (GPX4), inhibit ferroptosis, safeguard neurons, and facilitate the restoration of nerve function. Results from network pharmacology indicated that the action of CT might be mediated via the PI3K/Akt signaling pathway. Simultaneously, in-vivo investigations revealed that CT curbs ferroptosis through the PI3K/AKT/Nrf2 and SLC7A11/GPX4 signaling pathways. Conclusion CT can inhibit ferroptosis by inhibiting the vicious cycle between oxidative stress and inflammation, protect neurons and promote motor function recovery.

CAS / MDL: 35825-57-1
研究领域: 药理学 · 神经科学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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ACS Nano · 2025 · IF 16

Synchronously Evoking Disulfidptosis and Ferroptosis via Systematical Glucose Deprivation Targeting SLC7A11/GSH/GPX4 Antioxidant Axis

Mengsi Zhang,Hao Zheng,Xuanqi Zhu,Shuwei Liu,Hao Jin,Yang Chen,Lanlan Wan,Songling Zhang,Hao Zhang

Disulfidptosis and ferroptosis are recently identified programmed cell deaths for tumor therapy, both of which highly depend on the intracellular cystine/cysteine transformation on the cystine transporter solute carrier family 7 member 11/glutathione/glutathione peroxidase 4 (SLC7A11/GSH/GPX4) antioxidant axis. However, disulfidptosis and ferroptosis are usually asynchronous due to the opposite effect of cystine transport on them. Herein, systematic glucose deprivation, by both inhibiting upstream glucose uptake and promoting downstream glucose consumption, is proposed to synchronously evoke disulfidptosis and ferroptosis. As an example, Au nanodots and Fe-apigenin (Ap) complexes coloaded FeOOH nanoshuttles (FeOOH@Fe-Ap@Au NSs) are employed to regulate the SLC7A11/GSH/GPX4 axis for performing disulfidptosis- and ferroptosis-mediated tumor therapy synchronously. In this scenario, Au nanodots exhibit glucose oxidase-like activity when consuming massive glucose. Meanwhile, Ap can inhibit glucose uptake by downregulating glucose transporter 1, depriving glucose fundamentally. The systematical glucose deprivation limits the supplement of NADPH and suppresses cystine/cysteine transformation on the SLC7A11/GSH/GPX4 axis, thus solving the contradiction of cystine transport on disulfidptosis and ferroptosis. In addition, the efficient delivery of exogenous iron ions by FeOOH@Fe-Ap@Au NSs and self-supplied H2O2 through Au nanodots-catalytic glucose oxidation facilitate intracellular Fenton reaction and therewith help to amplify ferroptosis. As a result of synchronous occurrence of disulfidptosis and ferroptosis, FeOOH@Fe-Ap@Au NSs exhibit good efficacy in an ovarian cancer therapeutic model.

研究领域: 肿瘤治疗 · 分子生物学 · 纳米医学 · 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 · 2024 · IF 7.1

Isoliquiritigenin alleviates myocardial ischemia-reperfusion injury by regulating the Nrf2/HO-1/SLC7A11/GPX4 axis in mice

Deshan Yao,Liuxiang Bao,Sichuan Wang,Meng Tan,Yuanyuan Xu,Tianxu Wu,Zhengang Zhang,Kaizheng Gong

Ischemia-reperfusion (I/R) injury, a multifaceted pathological process, occurs when the prolongation of reperfusion duration triggers ferroptosis-mediated myocardial damage. Isoliquiritigenin (ISL), a single flavonoid from licorice, exhibits a wide range of pharmacological impacts, but its function in ferroptosis caused by myocardial I/R injury remains unclear. This study delved into the protective effect of ISL on myocardial I/R injury-induced ferroptosis and its mechanism. Neonatal mouse cardiomyocytes (NMCM) underwent hypoxia/reoxygenation (H/R) to simulate the pathological process of myocardial I/R. ISL significantly attenuated H/R-triggered production of reactive oxygen species in NMCM, reduced the expression of malondialdehyde and the activity of lactate dehydrogenase, enhanced superoxide dismutase and catalase activity, and increased the expression of nuclear factor E2-related factor 2 (Nrf2) and its downstream heme oxygenase 1 (HO-1), thereby mitigating oxidative stress damage. CCK8 experiment revealed that the ferroptosis inhibitor Ferrostatin-1 significantly improved myocardial cell viability after 24 h of reoxygenation, and ISL treatment showed a similar effect. ISL reduced intracellular free iron accumulation, up-regulated glutathione peroxidase 4 (GPX4) and solute carrier family 7 member 11 (SLC7A11) expression, and inhibited lipid peroxidation accumulation, thereby alleviating ferroptosis. The Nrf2-specific inhibitor ML385 counteracted ISL's defensive role against H/R-triggered oxidative stress damage and ferroptosis. In vivo experiments further confirmed that by regulating the translocation of Nrf2 into the nucleus, ISL treatment increased the levels of HO-1, GPX4, and SLC7A11, inhibited the expression of ACSL4, Drp1 to exert the antioxidant role, alleviated mitochondrial damage, and ferroptosis, ultimately reducing myocardial infarction area and injury induced by I/R. ML385 nearly abolished ISL's protective impact on the I/R model by inhibiting Nrf2 function. In summary, ISL is capable of mitigating oxidative stress, mitochondrial damage, and cardiomyocyte ferroptosis caused by I/R, thereby reducing myocardial injury. A key mechanism includes triggering the Nrf2/HO-1/SLC7A11/GPX4 pathway to prevent oxidative stress damage and cardiomyocyte ferroptosis caused by I/R.

研究领域: 药理学 · 心脏病学 · 分子生物学 · 细胞生物学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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MOLECULES · 2025 ·Vol. 31 ·期 1 ·79 · IF 4.6

α-Linolenic Acid Alleviates Diabetic Cardiomyopathy by Activating AMPK-STAT3 Pathway to Inhibit Ferritinophagy and Enhance SLC7A11-GPX4 Antioxidant Axis

Ziqian Zhang,Xue Bai,Qian Du,Jianhong Yang

Diabetic cardiomyopathy (DCM) is a severe complication of diabetes, in which ferroptosis is a key pathogenic mechanism. This study examines how alpha-linolenic acid (ALA), a plant-derived omega-3 polyunsaturated fatty acid, protects against damage from ferroptosis in DCM. Using an in vitro model of H9C2 cardiomyocytes treated with high glucose/palmitate, combined with a high-fat diet and mouse model of low-dose streptozotocin (STZ)-induced diabetes, this research demonstrates for the first time that ALA significantly alleviates cardiac dysfunction and prevents ferroptosis. Mechanistically, ALA inhibits STAT3 phosphorylation by activating the AMPK signaling pathway, thereby reducing NCOA4-mediated ferritinophagy and mitigating mitochondrial iron overload and reactive oxygen species accumulation. It also enhances the function of the SLC7A11/GSH/GPX4 axis, reducing lipid peroxidation (LPO)-induced ferroptosis. Collectively, these findings indicate that ALA protects against diabetic cardiomyopathy by coordinating the regulation of ferritinophagy and antioxidant defense through the AMPK-STAT3 pathway, offering a potential therapeutic strategy for disease management.

CAS / MDL: 463-40-1
研究领域: 心血管病学 · 内分泌学 · 分子生物学 · 代谢性疾病 · 氧化应激 · 细胞死亡机制 · 营养干预
✓ 已验证 产品关联 DOI PubMed 高影响因子
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COLLOIDS AND SURFACES B-BIOINTERFACES · 2023 · IF 5.8

DDTC-Cu(I) based metal-organic framework (MOF) for targeted melanoma therapy by inducing SLC7A11/GPX4-mediated ferroptosis

Chan Li,Sheng Zhou,Chuncheng Chen,Lijun Zhu,Shijie Li,Zhuoyue Song,Jian Liang,Chunzhi Tang,Nenggui Xu,Tao Liu,Shihui Liu

Disulfiram (DSF), a drug for alcohol withdrawal , has attracted extensive scientific attention due to its potential to treat cancer. The metabolite of DSF, diethyl dithiocarbamate (DDTC), forms a Cu-DDTC complex in vivo with copper ions , which has been shown to be a proteasome inhibitor with high antitumor activity . However, the in vivo stability of Cu-DDTC complexes remains a challenge. In this study, the nanomedicine [email protected] with high antitumor activity was prepared by using the nanoscale metal-organic framework (MOF) Cu-BTC as a carrier and loading diethyldithiocarbamate (DDTC) through coordination interaction. The results showed that [email protected] had high drug loading and adequate stability, and exhibited DDTC-Cu(I) chemical valence characteristics and polycrystalline structure features. In vitro cytocompatibility investigation and animal xenograft tumor model evaluation demonstrated the anti-cancer potential of [email protected] , especially the combination of [email protected] with low-dose cisplatin showed significant antitumor effect and biosafety. This study provides a feasible protocol for developing antitumor drugs based on the drug repurposing strategy.

CAS / MDL: 20427-59-2 554-95-0
研究领域: 药学 · 纳米技术 · 肿瘤学 · 材料科学
✓ 已验证 产品关联 DOI PubMed 高影响因子
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES · 2024 · IF 7.7

Lycium barbarum polysaccharide alleviates ferroptosis in Sertoli cells through NRF2/SLC7A11/GPX4 pathway and ameliorates DEHP-induced male reproductive damage in mice

Hong Yang,Liyang Ding,Bo Xu,Zhen Zhang,Wenjie Dai,Tiantian He,Ling Liu,Xing Du,Xufeng Fu

Di-(2-ethylhexyl)phthalate (DEHP) is a common plasticizer that has been shown to significantly negatively affect male reproductive health. On the other hand, Lycium barbarum polysaccharide (LBP) has been shown to improve reproductive function. Therefore, we hypothesized that LBP may ameliorate DEHP-induced male reproductive damage. Herein, we found that LBP could alleviate DEHP-induced testicular damage and sperm abnormalities. Furthermore, histomorphological analysis of mice testis revealed that LBP primarily ameliorated the DEHP-induced male reproductive damage by targeting Sertoli cells. Moreover, the detection of the function-related genes of Sertoli cells confirmed this finding. The serum of mice in the Control, DEHP, and DEHP+LBP groups was analyzed using non-targeted metabolomics to further elucidate the mechanism of action of LBP in improving DEHP-induced male reproductive damage. According to the results, the differential metabolites were mainly enriched in the glutamate metabolism pathway, implying that LBP may alleviate the ferroptosis-related DEHP-induced testicular injury. Related ferroptosis markers were also found in mice testis. These findings collectively suggest that LBP may ameliorate DEHP-induced testicular injury via alleviating ferroptosis in Sertoli cells. To clarify the specific mechanism, we constructed a cell model in vitro by treating TM4 cells (the Sertoli cell line) with LBP and MEHP (the in vivo DEHP metabolite). Our findings revealed that LBP can improve the function of DEHP-affected Sertoli cells. Furthermore, the analysis of lipid peroxidation, Fe 2+ content, and ferroptosis-related protein expressions demonstrated that LBP could ameliorate MEHP-induced ferroptosis in TM4 cells. To clarify the specific mechanism, glutamate metabolism-related proteins involved in the ferroptosis pathway were detected. According to the results, there were significant changes in the expression of NRF2, SLC7A11 and GPX4 proteins, which are involved in the ferroptosis glutamate metabolism pathway. Furthermore, supplementation of NRF2, SLC7A11, and GPX4 inhibitors (ML385, Erastin, and RSL3, respectively) blocked the therapeutic effect of LBP in alleviating MEHP-induced ferroptosis in TM4 cells, implying that LBP could also ameliorate MEHP-induced ferroptosis via the NRF2/SLC7A11/GPX4 pathway. In summary, these findings show that LBP can alleviate DEHP/MEHP-induced ferroptosis through the NRF2/SLC7A11/GPX4 pathway, ameliorating Sertoli cell dysfunction and improving the DEHP-induced male reproductive damage. Therefore, the clinical administration of LBP could be an effective strategy for preventing DEHP-induced male reproductive injury.

研究领域: 生殖生物学 · 毒理学 · 药理学 · 细胞生物学
✓ 已验证 DOI PubMed 高影响因子
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