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Song Y, Song Q, Tan F, Wang Y, Li C, Liao S, Yu K, Mei Z, Lv L. Seliciclib alleviates ulcerative colitis by inhibiting ferroptosis and improving intestinal inflammation. Life Sci 2024; 351:122794. [PMID: 38866218 DOI: 10.1016/j.lfs.2024.122794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/28/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND Ulcerative colitis (UC) is a chronic, recurrent, non-specific inflammatory disease, and the pathogenesis of the disease remains unclear. Ferroptosis is a form of programmed cell death characterized by the accumulation of iron-dependent lipid peroxides, which are simultaneously closely related to reactive oxygen species (ROS). Although seliciclib is highly effective against immune inflammation, its mechanism on colitis is unclear. This study demonstrated that seliciclib administration partially inhibited ferroptosis, alleviating symptoms and inflammation in experimental colitis. METHODS The mouse UC model was induced by 3.0 % dextran sodium sulfate (DSS) for 7 days and treated with seliciclib (10 mg/kg) for 5 days. In the in vitro model, LPS (100 μg/mL) was used for induction and seliciclib (10 μM) was applied for 2 h. Meanwhile, appropriate histopathology, inflammatory response, oxidative stress, and ferroptosis regulators were measured. RESULTS This study primarily investigated the role of seliciclib in regulating ferroptosis in UC. Bioinformatics analysis indicated that Dual oxidase 2 (DUOX2) may serve a role involved in the ferroptosis of UC. The experimental findings demonstrated that seliciclib alleviates symptoms and inflammation in DSS-induced UC mice and partially mitigates the occurrence of ferroptosis both in vivo and in vitro, possibly through the modulation of DUOX2. CONCLUSIONS Ferroptosis is strongly associated with the development of colitis, and seliciclib plays an essential role in ferroptosis and inflammation in UC. The suppression of ferroptosis in the intestinal epithelium could be a therapeutic approach for UC.
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Affiliation(s)
- Ya Song
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Qian Song
- The Second College of Clinical Medicine, Chongqing Medical University, 1 Yixue Road, Yuzhong, 400016 Chongqing, China.
| | - Fangyan Tan
- Department of Nephrology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Yanhui Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Chuanfei Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Shengtao Liao
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Keqi Yu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China
| | - Zhechuan Mei
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
| | - Lin Lv
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, 74 Linjiang Road, Yuzhong, 400010 Chongqing, China.
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Zhu J, Wu Y, Ge X, Chen X, Mei Q. Discovery and Validation of Ferroptosis-Associated Genes of Ulcerative Colitis. J Inflamm Res 2024; 17:4467-4482. [PMID: 39006497 PMCID: PMC11246036 DOI: 10.2147/jir.s463042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024] Open
Abstract
Background Ulcerative colitis (UC) is a long-lasting idiopathic condition, but its precise mechanisms remain unclear. Meanwhile, evidence has demonstrated that ferroptosis seems to interlock with the progress of UC. This research sought to identify hub genes of UC related to ferroptosis. Methods First, the relevant profiles for this article were obtained from GEO database. From the FerrDb, 479 genes linked to ferroptosis were retrieved. Using analysis of the difference and WGCNA on colonic samples from GSE73661, the remaining six hub genes linked to ferroptosis and UC were discovered. Through logistic regression analyses, the diagnostic model was constructed and was then evaluated by external validation using dataset GSE92415. Afterwards, the correlation between immune cell filtration in UC and hub genes was examined. Finally, a mice model of colitis was established, and the results were verified using qRT-PCR. Results We acquired six hub genes linked to ferroptosis and UC. In order to create a diagnostic model for UC, we used logistic regression analysis to screen three of the six ferroptosis related genes (HIF1A, SLC7A11, and LPIN1). The ROC curve showed that the three hub genes had outstanding potential for disease diagnosis (AUC = 0.976), which was subsequently validated in samples from GSE92415 (AUC = 0.962) and blood samples from GSE3365 (AUC = 0.847) and GSE94648 (AUC = 0.769). These genes might be crucial for UC immunity based upon the results on the immune system. Furthermore, mouse samples examined using qRT-PCR also verified our findings. Conclusion In conclusion, the findings have important implications for ferroptosis and UC, and these hub genes may also offer fresh perspectives on the aetiology and therapeutic approaches of UC.
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Affiliation(s)
- Jiejie Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, People's Republic of China
- Key Laboratory of Digestive Diseases of Anhui Province, Hefei, People's Republic of China
| | - Yumei Wu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, People's Republic of China
- Key Laboratory of Digestive Diseases of Anhui Province, Hefei, People's Republic of China
| | - Xiaoyuan Ge
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, People's Republic of China
- Key Laboratory of Digestive Diseases of Anhui Province, Hefei, People's Republic of China
| | - Xinwen Chen
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, People's Republic of China
- Key Laboratory of Digestive Diseases of Anhui Province, Hefei, People's Republic of China
| | - Qiao Mei
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei City, Anhui Province, People's Republic of China
- Key Laboratory of Digestive Diseases of Anhui Province, Hefei, People's Republic of China
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Escuder-Rodríguez JJ, Liang D, Jiang X, Sinicrope FA. Ferroptosis: Biology and Role in Gastrointestinal Disease. Gastroenterology 2024; 167:231-249. [PMID: 38431204 PMCID: PMC11193643 DOI: 10.1053/j.gastro.2024.01.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 03/05/2024]
Abstract
Ferroptosis is a form of nonapoptotic cell death that involves iron-dependent phospholipid peroxidation induced by accumulation of reactive oxygen species, and results in plasma membrane damage and the release of damage-associated molecular patterns. Ferroptosis has been implicated in aging and immunity, as well as disease states including intestinal and liver conditions and cancer. To date, several ferroptosis-associated genes and pathways have been implicated in liver disease. Although ferroptotic cell death is associated with dysfunction of the intestinal epithelium, the underlying molecular basis is poorly understood. As the mechanisms regulating ferroptosis become further elucidated, there is clear potential to use ferroptosis to achieve therapeutic benefit.
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Affiliation(s)
- Juan-José Escuder-Rodríguez
- Department of Medicine, Gastrointestinal Research Unit, Mayo Clinic Alix School of Medicine, Rochester, Minnesota
| | - Deguang Liang
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York.
| | - Frank A Sinicrope
- Department of Medicine, Gastrointestinal Research Unit, Mayo Clinic Alix School of Medicine, Rochester, Minnesota.
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Li Y, Yan F, Xiang J, Wang W, Xie K, Luo L. Identification and experimental validation of immune-related gene PPARG is involved in ulcerative colitis. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167300. [PMID: 38880160 DOI: 10.1016/j.bbadis.2024.167300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/30/2024] [Accepted: 06/06/2024] [Indexed: 06/18/2024]
Abstract
BACKGROUND The pathophysiology of ulcerative colitis (UC) is believed to be heavily influenced by immunology, which presents challenges for both diagnosis and treatment. The main aims of this study are to deepen our understanding of the immunological characteristics associated with the disease and to identify valuable biomarkers for diagnosis and treatment. METHODS The UC datasets were sourced from the GEO database and were analyzed using unsupervised clustering to identify different subtypes of UC. Twelve machine learning algorithms and Deep learning model DNN were developed to identify potential UC biomarkers, with the LIME and SHAP methods used to explain the models' findings. PPI network is used to verify the identified key biomarkers, and then a network connecting super enhancers, transcription factors and genes is constructed. Single-cell sequencing technology was utilized to investigate the role of Peroxisome Proliferator Activated Receptor Gamma (PPARG) in UC and its correlation with macrophage infiltration. Furthermore, alterations in PPARG expression were validated through Western blot (WB) and immunohistochemistry (IHC) in both in vitro and in vivo experiments. RESULT By utilizing bioinformatics techniques, we were able to pinpoint PPARG as a key biomarker for UC. The expression of PPARG was significantly reduced in cell models, UC animal models, and colitis models induced by dextran sodium sulfate (DSS). Interestingly, overexpression of PPARG was able to restore intestinal barrier function in H2O2-induced IEC-6 cells. Additionally, immune-related differentially expressed genes (DEGs) allowed for efficient classification of UC samples into neutrophil and mitochondrial metabolic subtypes. A diagnostic model incorporating the three disease-specific genes PPARG, PLA2G2A, and IDO1 demonstrated high accuracy in distinguishing between the UC group and the control group. Furthermore, single-cell analysis revealed that decreased PPARG expression in colon tissue may contribute to the polarization of M1 macrophages through activation of inflammatory pathways. CONCLUSION In conclusion, PPARG, a gene related to immunity, has been established as a reliable potential biomarker for the diagnosis and treatment of UC. The immune response it controls plays a key role in the progression and development of UC by enabling interaction between characteristic biomarkers and immune infiltrating cells.
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Affiliation(s)
- Yang Li
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Fangfang Yan
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Jing Xiang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Wenjian Wang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Kangping Xie
- The First Clinical College, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang, Guangdong 524023, China.
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5
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Wang H, Mao W, Zhang Y, Feng W, Bai B, Ji B, Chen J, Cheng B, Yan F. NOX1 triggers ferroptosis and ferritinophagy, contributes to Parkinson's disease. Free Radic Biol Med 2024; 222:331-343. [PMID: 38876456 DOI: 10.1016/j.freeradbiomed.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
The progressive loss of dopaminergic neurons in the midbrain is the hallmark of Parkinson's disease (PD). A newly emerging form of lytic cell death, ferroptosis, has been implicated in PD. However, it remains unclear in terms of PD-associated ferroptosis underlying causative genes and effective therapeutic approaches. This research explored the underlying mechanism of ferroptosis-related genes in PD. Here, Firstly, we found NOX1 associated with ferroptosis differently in PD patients by bioinformatics analysis. In vitro and in vivo models of PD were constructed to explore the underlying mechanism. qPCR, Western blot analysis, immunohistochemistry, immunofluorescence, Ferro orange, and BODIPY C11 were utilized to analyze the levels of ferroptosis. Transcriptomics sequencing was to investigate the downstream pathway and the analysis of immunoprecipitation to validate the upstream factor. In conclusion, NOX1 upregulation and activation of ferroptosis-related neurodegeneration, therefore, might be useful as a clinical therapeutic agent.
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Affiliation(s)
- Huiqing Wang
- School of Medicine, Southeast University, Nanjing, Jiangsu, 210009, People's Republic of China
| | - Wenwei Mao
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Yuhan Zhang
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Wenhui Feng
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Bo Bai
- Jining Medical University, Jining, 272067, People's Republic of China
| | - Bingyuan Ji
- Institute of Precision Medicine, Jining Medical University, Jining, 272067, People's Republic of China
| | - Jing Chen
- Neurobiology Institute, Jining Medical University, 272067, Jining, People's Republic of China; Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Baohua Cheng
- Neurobiology Institute, Jining Medical University, 272067, Jining, People's Republic of China; College of Basic Medicine, Jining Medical University, Jining, 272067, People's Republic of China.
| | - Fuling Yan
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, No. 87 Dingjiaqiao Road, Nanjing, 210009, People's Republic of China.
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Wang Y, Hao Y, Yuan L, Tian H, Sun X, Zhang Y. Ferroptosis: a new mechanism of traditional Chinese medicine for treating ulcerative colitis. Front Pharmacol 2024; 15:1379058. [PMID: 38895617 PMCID: PMC11184165 DOI: 10.3389/fphar.2024.1379058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
Ulcerative colitis (UC), a subtype of inflammatory bowel disease, manifests with symptoms such as abdominal pain, diarrhea, and mucopurulent, bloody stools. The pathogenesis of UC is not fully understood. At present, the incidence of UC has increased significantly around the world. Conventional therapeutic arsenals are relatively limited, with often poor efficacy and many adverse effects. In contrast, traditional Chinese medicine (TCM) holds promise due to their notable effectiveness, reduced recurrence rates, and minimal side effects. In recent years, significant progress has been made in the basic research on TCM for UC treatment. It has been found that the inhibition of ferroptosis through the intervention of TCM can significantly promote intestinal mucosal healing and reverse UC. The mechanism of action involves multiple targets and pathways. Aim of the review This review summarizes the experimental studies on the targeted regulation of ferroptosis by TCM and its impact on UC in recent years, aiming to provide theoretical basis for the prevention, treatment, and further drug development for UC. Results Ferroptosis disrupts antioxidant mechanisms in intestinal epithelial cells, damages the intestinal mucosa, and participates in the pathological process of UC. TCM acts on various pathways such as Nrf2/HO-1 and GSH/GPX4, blocking the pathological progression of ferroptosis in intestinal epithelial cells, inhibiting pathological damage to the intestinal mucosa, and thereby alleviating UC. Conclusion The diverse array of TCM single herbs, extracts and herbal formulas facilitates selective and innovative research and development of new TCM methods for targeting UC treatment. Although progress has been made in studying TCM compound formulas, single herbs, and extracts, there are still many issues in clinical and basic experimental designs, necessitating further in-depth scientific exploration and research.
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Affiliation(s)
- Yingyi Wang
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yanwei Hao
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lingling Yuan
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huaie Tian
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xuhui Sun
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yi Zhang
- Department of Gastroenterology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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7
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Yang Y, Lin Q, Zhu X, Shao X, Li S, Li J, Wu J, Jin H, Qi C, Jiang N, Zhang K, Wang Q, Gu L, Ni Z. Activation of lipophagy is required for RAB7 to regulate ferroptosis in sepsis-induced acute kidney injury. Free Radic Biol Med 2024; 218:120-131. [PMID: 38583680 DOI: 10.1016/j.freeradbiomed.2024.04.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Sepsis-induced acute kidney injury (S-AKI) is the most common type of acute kidney injury (AKI), accompanied by elevated morbidity and mortality rates. This study investigated the mechanism by which lipid droplets (LDs) degraded via autophagy (lipophagy)required for RAB7 regulated ferroptosis in the pathogenesis of S-AKI. Here, we constructed the S-AKI model in vitro and in vivo to elucidate the potential relationship of lipophagy and ferroptosis, and we first confirmed that the activation of lipophagy promoted renal tubular epithelial cell ferroptosis and renal damage in S-AKI. The results showed that lipopolysaccharide (LPS) induced a marked increase in lipid peroxidation and ferroptosis, which were rescued by ferrstain-1 (Fer-1), an inhibitor of ferroptosis. In addition, LPS induced the remarkable activation of RAB7-mediated lipophagy. Importantly, silencing RAB7 alleviated LPS-induced lipid peroxidation and ferroptosis. Thus, the present study demonstrated the potential significant role of ferroptosis and lipophagy in sepsis-induced AKI, and contributed to better understanding of the pathogenesis and treatment targets of AKI.
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Affiliation(s)
- Yuanting Yang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Qisheng Lin
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Xuying Zhu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Xinghua Shao
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Shu Li
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jialin Li
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Jingkui Wu
- Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201200, China
| | - Haijiao Jin
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Chaojun Qi
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Na Jiang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Kaiqi Zhang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Qin Wang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Leyi Gu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Zhaohui Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Shanghai Peritoneal Dialysis Research Center, Ren Ji Hospital, Uremia Diagnosis and Treatment Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
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8
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Yang Q, Xia Y, Chen K, Wang Y, Song D, Zhu J, Tong J, Shen Y. Blue light induced ferroptosis via STAT3/GPX4/SLC7A11/FTH1 in conjunctiva epithelium in vivo and in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 255:112908. [PMID: 38663336 DOI: 10.1016/j.jphotobiol.2024.112908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/28/2024] [Accepted: 04/12/2024] [Indexed: 05/13/2024]
Abstract
The prevalence of Light-emitting diodes (LEDs) has exposed us to an excessive amount of blue light (BL) which causes various ophthalmic diseases. Previous studies have shown that conjunctiva is vulnerable to BL. In this study, we aimed to investigate the underlying mechanism of BL-induced injury in conjunctiva. We placed C57BL/6 mice and human conjunctival epithelial cell lines (HCECs) under BL (440 nm ± 15 nm, 0.2 mW/cm2) to establish a BL injury model in vivo and in vitro. Immunohistochemistry and MDA assay were used to identify lipid peroxidation (LPO) in vivo. HE staining was applied to detect morphological damage of conjunctival epithelium. DCFH-DA, C11-BODIPY 581/591, Calcein-AM, and FeRhoNox™-1 probes were performed to identify ferroptosis levels in vitro. Real-time qPCR and Western blotting techniques were employed to uncover signaling pathways of blue light-induced ferroptosis. Our findings demonstrated that BL affected tear film instability and induced conjunctival epithelium injury in vivo. Ferrostatin-1 significantly alleviated blue light-induced ferroptosis in vivo and in vitro. BL downregulates the levels of solute carrier family 7 member 11 (SLC7A11), Ferritin heavy chain (FTH1), and glutathione peroxidase (GPX4) by inhibiting the activation and translocation of the Signal transducer and activator of transcription 3 (STAT3) from inducing Fe2+ burst, ROS and LPO accumulation, ultimately resulting in ferroptosis. This study will offer new insight into BL-induced conjunctival injury and LED-induced dry eye.
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Affiliation(s)
- Qianjie Yang
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yutong Xia
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Kuangqi Chen
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Yinhao Wang
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Dongjie Song
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jiru Zhu
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jianping Tong
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Ye Shen
- Department of Ophthalmology, the First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China.
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9
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Long D, Mao C, Huang Y, Xu Y, Zhu Y. Ferroptosis in ulcerative colitis: Potential mechanisms and promising therapeutic targets. Biomed Pharmacother 2024; 175:116722. [PMID: 38729051 DOI: 10.1016/j.biopha.2024.116722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/01/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024] Open
Abstract
Ulcerative colitis (UC) is a complex immune-mediated chronic inflammatory bowel disease. It is mainly characterized by diffuse inflammation of the colonic and rectal mucosa with barrier function impairment. Identifying new biomarkers for the development of more effective UC therapies remains a pressing task for current research. Ferroptosis is a newly identified form of regulated cell death characterized by iron-dependent lipid peroxidation. As research deepens, ferroptosis has been demonstrated to be involved in the pathological processes of numerous diseases. A growing body of evidence suggests that the pathogenesis of UC is associated with ferroptosis, and the regulation of ferroptosis provides new opportunities for UC treatment. However, the specific mechanisms by which ferroptosis participates in the development of UC remain to be more fully and thoroughly investigated. Therefore, in this review, we focus on the research advances in the mechanism of ferroptosis in recent years and describe the potential role of ferroptosis in the pathogenesis of UC. In addition, we explore the underlying role of the crosslinked pathway between ferroptosis and other mechanisms such as macrophages, neutrophils, autophagy, endoplasmic reticulum stress, and gut microbiota in UC. Finally, we also summarize the potential compounds that may act as ferroptosis inhibitors in UC in the future.
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Affiliation(s)
- Dan Long
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Chenhan Mao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yingtao Huang
- The First Clinical Medical College, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, China
| | - Yin Xu
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China.
| | - Ying Zhu
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China.
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10
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Mo M, Pan L, Deng L, Liang M, Xia N, Liang Y. Iron Overload Induces Hepatic Ferroptosis and Insulin Resistance by Inhibiting the Jak2/stat3/slc7a11 Signaling Pathway. Cell Biochem Biophys 2024:10.1007/s12013-024-01315-8. [PMID: 38801513 DOI: 10.1007/s12013-024-01315-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
Recent studies showed that patients with iron overload had increased risk of insulin resistance or diabetes. Ferroptosis is a new type of cell death mainly caused by iron-dependent oxidative damage. In the present study, we investigated potential mechanisms of iron overload induced hepatic ferroptosis and insulin resistance through in vivo and in vitro experiments. In vivo, the mice models of iron overload were established by intraperitoneal injection of iron dextran. The changes of body weight, serum ferritin and blood glucose were measured. Hematoxylin-eosin (HE) and Perl's stainings were used to observe the pathological changes and iron deposition in the liver of mice. In vitro, HepG2 cells were treated with ferric ammonium citrate (FAC, 9 mmol/L, 24 h) to establish the cell models of iron overload. The labile iron pool, cell viability, glucose consumption and glycogen contents were measured. The ultrastructure of mitochondria was observed by transmission electron microscope (TEM). The malondialdehyde (MDA) and glutathione (GSH) kits were used to detect lipid peroxidation in liver tissues of mice and HepG2 cells. RT-PCR and Western blot were used to detect the mRNA and protein expression levels of ferroptosis factors and JAK2/STAT3 signaling pathway. In this study, we used the iron chelator deferasirox in mice and HepG2 cells. Iron overload caused weight loss, elevated serum ferritin, fasting blood glucose, fasting insulin, HOMA-IR, impaired glucose tolerance, and decreased insulin sensitivity in mice. HE staining and Perls staining showed clumps of iron deposition in the liver of iron overload mice. Iron overload could reduce the glucose consumption, increase MDA contents of HepG2 cells, while reduce glycogen and GSH contents in liver tissues of mice and HepG2 cells. TEM showed deletion of mitochondrial ridge and rupture of outer membrane in HepG2 cells with iron overload. Iron chelator deferasirox could significantly improve the above indicators, which might be related to the activation of JAK2/STAT3/SLC7A11 signaling pathway and hepatic ferroptosis. Iron overload could induce hepatic ferroptosis and insulin resistance by inhibiting the JAK2/STAT3/SLC7A11 signaling pathway, and the iron chelator deferasirox might improve hepatic insulin resistance induced by iron overload.
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Affiliation(s)
- Manqiu Mo
- Geriatric Department of Endocrinology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ling Pan
- Department of Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ling Deng
- Department of Endocrinology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Min Liang
- Geriatric Department of Endocrinology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ning Xia
- Geriatric Department of Endocrinology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
| | - Yuzhen Liang
- Department of Endocrinology, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China.
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11
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Ma B, Hu X, Ai X, Zhang Y. Research progress of ferroptosis and inflammatory bowel disease. Biometals 2024:10.1007/s10534-024-00604-2. [PMID: 38713412 DOI: 10.1007/s10534-024-00604-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/09/2024] [Indexed: 05/08/2024]
Abstract
Inflammatory bowel disease (IBD) is a non-specific chronic inflammatory disorder of the gastrointestinal tract, imposing significant burdens on both society and individuals. As a new type of regulated cell death (RCD), ferroptosis is different from classic RCDs such as apoptosis and necrosis in cell morphology, biochemistry and genetics. The main molecular mechanisms of ferroptosis include dysregulation of iron metabolism, impaired antioxidant capacity, mitochondrial dysfunction, accumulation of lipid-associated super-oxides, and membrane disruption. In recent years, increasing evidence has shown that ferroptosis is involved in the pathophysiology of inflammatory bowel disease. However, the exact roles and underlying molecular mechanisms have not been fully elucidated. This article reviews the mechanism of ferroptosis in the occurrence and development of inflammatory bowel disease, in order to provide new ideas for the pathophysiological research of inflammatory bowel disease. Additionally, we discuss potential strategies for the prevention and treatment of inflammatory bowel disease by targeting ferroptosis.
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Affiliation(s)
- Baolian Ma
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Xiaoxue Hu
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Xiaowen Ai
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China
| | - Yonglan Zhang
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, China.
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12
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Wang M, Wang Z, Li Z, Qu Y, Zhao J, Wang L, Zhou X, Xu Z, Zhang D, Jiang P, Fan B, Liu Y. Targeting programmed cell death in inflammatory bowel disease through natural products: New insights from molecular mechanisms to targeted therapies. Phytother Res 2024. [PMID: 38706097 DOI: 10.1002/ptr.8216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 03/14/2024] [Accepted: 04/11/2024] [Indexed: 05/07/2024]
Abstract
Inflammatory bowel disease (IBD) is an autoimmune disorder primarily characterized by intestinal inflammation and recurrent ulceration, leading to a compromised intestinal barrier and inflammatory infiltration. This disorder's pathogenesis is mainly attributed to extensive damage or death of intestinal epithelial cells, along with abnormal activation or impaired death regulation of immune cells and the release of various inflammatory factors, which contribute to the inflammatory environment in the intestines. Thus, maintaining intestinal homeostasis hinges on balancing the survival and functionality of various cell types. Programmed cell death (PCD) pathways, including apoptosis, pyroptosis, autophagy, ferroptosis, necroptosis, and neutrophil extracellular traps, are integral in the pathogenesis of IBD by mediating the death of intestinal epithelial and immune cells. Natural products derived from plants, fruits, and vegetables have shown potential in regulating PCD, offering preventive and therapeutic avenues for IBD. This article reviews the role of natural products in IBD treatment by focusing on targeting PCD pathways, opening new avenues for clinical IBD management.
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Affiliation(s)
- Mengjie Wang
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhiyuan Wang
- People's Hospital of Zhengzhou, Zhengzhou, China
| | - Zhichao Li
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuan Qu
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jiting Zhao
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Lei Wang
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xinpeng Zhou
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ziqi Xu
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Di Zhang
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ping Jiang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Bing Fan
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ying Liu
- The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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13
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Sun S, Mao Y, Le S, Zheng M, Li M, Chen Y, Chen J, Fan Y, Lv B. Biological characteristics of molecular subtypes of ulcerative colitis characterized by ferroptosis and neutrophil infiltration. Sci Rep 2024; 14:9510. [PMID: 38664443 PMCID: PMC11045816 DOI: 10.1038/s41598-024-60137-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Clinical ulcerative colitis (UC) is a heterogeneous condition. Moreover, medical interventions are nonspecific, and thus, treatment responses are inconsistent. The aim of this study was to explore the molecular subtypes and biological characteristics of UC based on ferroptosis and neutrophil gene sets. Multiple intestinal mucosa gene expression profiles of UC patients in the Gene Expression Omnibus (GEO) database were downloaded. Unsupervised clustering methods were used to identify potential molecular subtypes based on ferroptosis and neutrophil gene sets. Multiple immune infiltration algorithms were used to evaluate the biological characteristics of the molecular subtypes. Machine learning identifies hub genes for molecular subtypes and analyses their diagnostic efficacy for UC and predictive performance for drug therapy. The relevant conclusions were verified by clinical samples and animal experiments. Four molecular subtypes were identified according to the ferroptosis and neutrophil gene sets: neutrophil, ferroptosis, mixed and quiescent. The subtypes have different biological characteristics and immune infiltration levels. Multiple machine learning methods jointly identified four hub genes (FTH1, AQP9, STEAP3 and STEAP4). Receiver operating characteristic (ROC) curve analysis revealed that the four hub genes could be used as diagnostic markers for UC. The clinical response profile data of infliximab treatment patients showed that AQP9 and STEPA4 were reliable predictors of infliximab treatment response. In human samples the AQP9 and STEAP4 protein were shown to be increased in UC intestinal samples. In animal experiments, the ferroptosis and neutrophil phenotype were confirmed. Dual analysis of ferroptosis and neutrophil gene expression revealed four subgroups of UC patients. The molecular subtype-associated hub genes can be used as diagnostic markers for UC and predict infliximab treatment response.
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Affiliation(s)
- Shaopeng Sun
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Yuqing Mao
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Sihua Le
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mingxu Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Menglin Li
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Yifei Chen
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Jiajia Chen
- Department of Nursing, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China
| | - Yihong Fan
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Bin Lv
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
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14
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Ding X, Yan F, Wang W, Qin J, Luo L. Integration of transcriptomics and metabolomics identify biomarkers of aberrant lipid metabolism in ulcerative colitis. Int Immunopharmacol 2024; 131:111865. [PMID: 38489972 DOI: 10.1016/j.intimp.2024.111865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
BACKGROUND The incidence of ulcerative colitis (UC) continues to rise globally, but effective therapeutic targets are still lacking. In recent years, numerous studies have indicated that lipid therapies could offer a novel perspective for UC treatment. Given the absence of prior research utilizing high-throughput data to identify target genes associated with lipid metabolism, we conducted this work. METHODS The training set for this study was derived from four datasets within the Gene Expression Omnibus (GEO), encompassing a total of 357 UC patients. We employed four machine learning methods (LASSO, SVM, RF, and Boruta) to jointly identify core biomarkers in these patients, whose aberrant expression needed to be validated in independent datasets and in dextrose sulfate sodium salt (DSS)-induced UC mouse models. Regarding metabolomics, we detected abnormal oxidized lipids in the serum of UC mouse using liquid chromatography-tandem mass spectrometry (LC-MS/MS) in conjunction with orthogonal partial least squares-discriminant analysis (OPLS-DA). RESULTS Phospholipase A2 Group IIA (PLA2G2A) was first identified as a possible biomarker for UC, with AUC values of 0.810 and 1.000 in the two validation sets, while in animal models the gene showed similarly significant up-regulation in damaged intestinal mucosa. Further analysis of this gene showed that it was positively correlated with 17 immune cell types and histological severity. Additionally, we pioneered the development of a lipid metabolism score in UC research, which outperformed all individual genes in terms of disease diagnostic efficacy (AUC values of 0.980 and 1.000 for the two validation sets, respectively). Finally, the metabolomics study also identified 31 significantly abnormal oxidized lipids, including 12-HHT and DHA. CONCLUSIONS PLA2G2A is a key therapeutic target for UC, and oxidized lipids such as 12-HHT can serve as potential serologic indicators for diagnosis.
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Affiliation(s)
- Xuexuan Ding
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Fangfang Yan
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Wenjian Wang
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine. Guangdong Medical University, Zhanjiang, Guangdong, 524023, China
| | - Jingtong Qin
- The First Clinical College, Guangdong Medical University, Zhanjiang 524023, Guangdong, China
| | - Lianxiang Luo
- The Marine Biomedical Research Institute of Guangdong Zhanjiang, School of Ocean and Tropical Medicine. Guangdong Medical University, Zhanjiang, Guangdong, 524023, China.
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15
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Li B, Zhang X, Zhang Q, Zheng T, Li Q, Yang S, Shao J, Guan W, Zhang S. Nutritional strategies to reduce intestinal cell apoptosis by alleviating oxidative stress. Nutr Rev 2024:nuae023. [PMID: 38626282 DOI: 10.1093/nutrit/nuae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024] Open
Abstract
The gut barrier is the first line of defense against harmful substances and pathogens in the intestinal tract. The balance of proliferation and apoptosis of intestinal epithelial cells (IECs) is crucial for maintaining the integrity of the intestinal mucosa and its function. However, oxidative stress and inflammation can cause DNA damage and abnormal apoptosis of the IECs, leading to the disruption of the intestinal epithelial barrier. This, in turn, can directly or indirectly cause various acute and chronic intestinal diseases. In recent years, there has been a growing understanding of the vital role of dietary ingredients in gut health. Studies have shown that certain amino acids, fibers, vitamins, and polyphenols in the diet can protect IECs from excessive apoptosis caused by oxidative stress, and limit intestinal inflammation. This review aims to describe the molecular mechanism of apoptosis and its relationship with intestinal function, and to discuss the modulation of IECs' physiological function, the intestinal epithelial barrier, and gut health by various nutrients. The findings of this review may provide a theoretical basis for the use of nutritional interventions in clinical intestinal disease research and animal production, ultimately leading to improved human and animal intestinal health.
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Affiliation(s)
- Baofeng Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Xiaoli Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qianzi Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Tenghui Zheng
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Qihui Li
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Siwang Yang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Jiayuan Shao
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Wutai Guan
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Shihai Zhang
- Guangdong Province Key Laboratory of Animal Nutrition Control, College of Animal Science, South China Agricultural University, Guangzhou, China
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16
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Ye Y, Liu L, Jing Y, Yao S, Yang M, Dai X, Piao M, Xu X, Feng Z, Wang X, Liu Y, Miao J, Gao X, Yu Q, Cao X. Ferroptosis: A therapeutic opportunity of inflammatory bowel disease. Chin Med J (Engl) 2024; 137:874-876. [PMID: 38391159 PMCID: PMC10997284 DOI: 10.1097/cm9.0000000000002998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Indexed: 02/24/2024] Open
Affiliation(s)
- Yulin Ye
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Limin Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Yang Jing
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Shuangzhe Yao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Mo Yang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Xin Dai
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Meiyu Piao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Xin Xu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Zelin Feng
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Xiaoli Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Yifei Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Junming Miao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Xingjie Gao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Tianjin Medical University, Tianjin 300070, China
| | - Qingxiang Yu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
| | - Xiaocang Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin 300070, China
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17
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Pandey R, Chiu CC, Wang LF. Immunotherapy Study on Non-small-Cell Lung Cancer (NSCLC) Combined with Cytotoxic T Cells and miRNA34a. Mol Pharm 2024; 21:1364-1381. [PMID: 38291993 PMCID: PMC10915804 DOI: 10.1021/acs.molpharmaceut.3c01040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 02/01/2024]
Abstract
Immunotherapy has emerged as a promising approach for cancer treatment, and the use of microRNAs (miRNAs) as therapeutic agents has gained significant attention. In this study, we investigated the effectiveness of immunotherapy utilizing miRNA34a and Jurkat T cells in inducing cell death in non-small-cell lung cancer cells, specifically A549 cells. Moreover, we explored the impact of Jurkat T cell activation and miRNA34a delivery using iron oxide nanorods (IONRs) on the killing of cancer cells. A549 cells were cocultured with both activated and inactivated Jurkat T cells, both before and after the delivery of miRNA34a. Surprisingly, our results revealed that even inactive Jurkat T cells were capable of inducing cell death in cancer cells. This unexpected observation suggested the presence of alternative mechanisms by which Jurkat T cells can exert cytotoxic effects on cancer cells. We stimulated Jurkat T cells using anti-CD3/CD28 and analyzed their efficacy in killing A549 compared to that of the inactive Jurkat T cells in conjunction with miRNA34a. Our findings indicated that the activation of Jurkat T cells significantly enhanced their cytotoxic potential against cancer cells compared to their inactive counterparts. The combined treatment of A549 cells with activated Jurkat T cells and miRNA34a demonstrated the highest level of cancer cell death, suggesting a synergistic effect between Jurkat T cell activation and miRNA therapy. Besides the apoptosis mechanism for the Jurkat T cells' cytotoxic effects on A549 cells, we furthermore investigated the ferroptosis pathway, which was found to have an impact on the cancer cell killing due to the presence of miRNA34a and IONRs as the delivery agent inside the cancer cells.
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Affiliation(s)
- Richa Pandey
- Department
of Medicinal and Applied Chemistry, Kaohsiung
Medical University, No. 100 Shih-Chuan first Road, Kaohsiung 80708, Taiwan
| | - Chien-Chih Chiu
- Department
of Biotechnology, Kaohsiung Medical University, No. 100 Shih-Chuan first Road, Kaohsiung 80708, Taiwan
- Department
of Medical Research, Kaohsiung Medical University
Hospital, No.100 Tzyou
first Road, Kaohsiung 80708, Taiwan
| | - Li-Fang Wang
- Department
of Medicinal and Applied Chemistry, Kaohsiung
Medical University, No. 100 Shih-Chuan first Road, Kaohsiung 80708, Taiwan
- Department
of Medical Research, Kaohsiung Medical University
Hospital, No.100 Tzyou
first Road, Kaohsiung 80708, Taiwan
- Institute
of Medical Science and Technology, National
Sun Yat-Sen University, No.70 Lien-Hai Road, Kaohsiung 804201, Taiwan
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18
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Ye Y, Liu L, Feng Z, Liu Y, Miao J, Wei X, Li H, Yang J, Cao X, Zhao J. The ERK-cPLA2-ACSL4 axis mediating M2 macrophages ferroptosis impedes mucosal healing in ulcerative colitis. Free Radic Biol Med 2024; 214:219-235. [PMID: 38367927 DOI: 10.1016/j.freeradbiomed.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/08/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Ulcerative colitis (UC) is a chronic gastrointestinal disease that can be managed with 5-aminosalicylic acid (5-ASA), the standard treatment for UC. However, the effectiveness of 5-ASA is not always optimal. Our study revealed that despite 5-ASA treatment, cells continued to experience excessive ferroptosis, which may hinder mucosal healing in UC and limit the success of this treatment approach in achieving disease remission. We found that combining 5-ASA with the ferroptosis inhibitor Fer-1 led to a significant inhibition of ferroptosis in macrophages present in the colon tissue, along with an increase in the proportion of M2 macrophages, suggesting that targeting ferroptosis in M2 macrophages could be a potential therapeutic strategy for alleviating UC. Our study also demonstrated that M2 macrophages are more susceptible to ferroptosis compared to M1 macrophages, and this susceptibility is associated with the activated arachidonic acid (AA) metabolism pathway mediated by ERK-cPLA2-ACSL4. Additionally, we found that the expression of cPLA2 gene pla2g4a was increased in the colon of UC patients compared to healthy controls. Furthermore, targeted metabolomics analysis revealed that the combination treatment group, as opposed to the 5-ASA treatment group, exhibited the ability to modulate AA metabolism. Overall, our findings emphasize the importance of addressing macrophage ferroptosis in order to enhance macrophage anti-inflammation, improve mucosal healing, and achieve better therapeutic outcomes for patients with UC.
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Affiliation(s)
- Yulin Ye
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Limin Liu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Zelin Feng
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Yifei Liu
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Junming Miao
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Xinyue Wei
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Huizhen Li
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Jie Yang
- Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), and Key Laboratory of Cellular and Molecular Immunology, The Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics, Tianjin Medical University, Tianjin, China; State Key Laboratory of Experimental Hematology, Tianjin, China.
| | - Xiaocang Cao
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
| | - Jingwen Zhao
- Department of Gastroenterology and Hepatology, General Hospital, Tianjin Medical University, Tianjin, China; Tianjin Institute of Digestive Diseases, Tianjin, China; Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
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19
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Yang Q, Zhang P, Han L, Shi P, Zhao Z, Cui D, Hong K. Mitochondrial-related genes PDK2, CHDH, and ALDH5A1 served as a diagnostic signature and correlated with immune cell infiltration in ulcerative colitis. Aging (Albany NY) 2024; 16:3803-3822. [PMID: 38376420 PMCID: PMC10929806 DOI: 10.18632/aging.205561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/17/2024] [Indexed: 02/21/2024]
Abstract
We conducted an investigation to determine the potential of mitochondrial-related genes as diagnostic biomarkers in ulcerative colitis (UC), while also examining their association with immune cell infiltration. To achieve this, we acquired four datasets pertaining to UC, which included gene expression arrays and clinical data, from the GEO database. Subsequently, we selected three signature genes (PDK2, CHDH, and ALDH5A1) to construct a diagnostic model for UC. The nomogram and ROC curves exhibited exceptional diagnostic efficacy. Following this, quantitative real-time polymerase chain reaction and western blotting assays validated the decreased mRNA and protein expression of PDK2, CHDH, and ALDH5A1 in the model of UC cells and dextran sulfate sodium salt (DSS)-induced mice colitis tissues, aligning with the findings in the risk model. This investigation suggested a negative correlation between the expression of ALDH5A1, CHDH, and PDK2 and the infiltration of M1 macrophages. Then, immunofluorescence analysis confirmed the augmented expression of CD86 in the tissue of mice subjected to DSS, while a diminished expression of ALDH5A1, CHDH, and PDK2 was observed. Consequently, it can be inferred that targeting mitochondria-associated genes, namely PDK2, CHDH, and ALDH5A1, holds potential as a viable strategy for prognostic prediction and the implementation of immune therapy for UC.
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Affiliation(s)
- Qian Yang
- Department of Gastroenterology, Guizhou Provincial People’s Hospital, Medical College of Guizhou University, Guiyang, Guizhou, China
| | - Peng Zhang
- Department of Urology, Guizhou Provincial People’s Hospital, Guiyang, Guizhou, China
| | - Lu Han
- Department of Gastroenterology, Guizhou Provincial People’s Hospital, Medical College of Guizhou University, Guiyang, Guizhou, China
| | - Pengshuang Shi
- Department of Gastroenterology, Guizhou Provincial People’s Hospital, Medical College of Guizhou University, Guiyang, Guizhou, China
| | - Zhifang Zhao
- Department of Gastroenterology, Guizhou Provincial People’s Hospital, Medical College of Guizhou University, Guiyang, Guizhou, China
| | - Dejun Cui
- Department of Gastroenterology, Guizhou Provincial People’s Hospital, Medical College of Guizhou University, Guiyang, Guizhou, China
| | - Kunqiao Hong
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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Zhang W, Li Z, Li H, Zhang D. Identification of differentially expressed genes associated with ferroptosis in Crohn's disease. Exp Ther Med 2024; 27:89. [PMID: 38274342 PMCID: PMC10809353 DOI: 10.3892/etm.2024.12378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/17/2023] [Indexed: 01/27/2024] Open
Abstract
Ferroptosis-related genes may play a critical regulatory role in the pathogenesis of Crohn's disease (CD). The purpose of the present study was to identify genes expressed in CD that are associated with ferroptosis, and to provide guidance in the diagnosis and therapy of CD. CD mRNA expression data were initially gathered from the Gene Expression Omnibus (GEO) database. GSE75214 and GSE102133 datasets were selected as the major targets and were analyzed for differentially expressed genes (DEGs). Subsequently, R software was used to analyze the common genes among the DEGs between CD and ferroptosis-related genes. Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genome pathway analysis were conducted to identify related pathways and functions. Protein-protein interaction (PPI) analysis was performed to identify target genes. The DSigDB website was used to predict potential target drugs for hub genes. Reverse transcription-quantitative (RT-q) PCR was employed to detect the expression of these ferroptosis-related genes in clinical samples obtained from healthy controls and patients with CD. According to the two GEO datasets, 13 ferroptosis DEGs (11 upregulated genes and two downregulated genes) were identified in CD with thresholds of P<0.05 and |log2 fold change|>1, and were selected for further analysis. PPI analysis indicated the mutual effects among these genes and filtered out five hub genes. The top 10 potential targeted drugs were selected. The qPCR results showed that the expression levels of three genes, namely, IL-6, prostaglandin-endoperoxide synthase 2 (PTGS2) and dual oxidase 2 (DUOX2), were different between CD samples and healthy samples. This result was consistent with the results obtained from the bioinformatics analysis. In conclusion, bioinformatics analysis identified a total of 13 ferroptosis-associated genes in CD. Further verification by qPCR showed that IL-6, PTGS2 and DUOX2 may affect the process of CD by regulating ferroptosis. These findings might provide new biomarkers, diagnostic and therapeutic markers for CD.
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Affiliation(s)
- Wenquan Zhang
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhaoshui Li
- Qingdao Medical College, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Hongbo Li
- Department of The First General Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266011, P.R. China
| | - Dianliang Zhang
- Department of The First General Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong 266011, P.R. China
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21
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Yang Y, Pang F, Zhou M, Guo X, Yang Y, Qiu W, Liao C, Chen Y, Tang C. Electroacupuncture Reduces Inflammatory Bowel Disease in Obese Mice by Activating the Nrf2/HO-1 Signaling Pathways and Repairing the Intestinal Barrier. Diabetes Metab Syndr Obes 2024; 17:435-452. [PMID: 38299195 PMCID: PMC10829509 DOI: 10.2147/dmso.s449112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/20/2024] [Indexed: 02/02/2024] Open
Abstract
Background Electroacupuncture (EA) is used to treat inflammatory bowel disease (IBD). Nevertheless, the precise mechanisms by which this approach safeguards against obesity-induced intestinal barrier damage has not been fully understood. Objective This study aimed to assess whether EA could ameliorate intestinal barrier damage that had been reversed in a mouse model of obesity induced by a high-fat diet (HFD) and whether this repair is correlated with ferroptosis and gut microbiota enhancement. Methods To assess the potential of EA to prevent obesity and restore the intestinal barrier, we divided in C57BL/6J mice into two groups; one was fed with HFD and another one with a normal diet. Samples of stool, blood, fat, and intestinal epithelium were then evaluated, along with body weight. Results Following EA, we observed a significant reduction in body weight, fat accumulation, and serum triglyceride (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) levels; an increase was seen in high-density lipoprotein cholesterol (HDL-C) levels. EA also activated the Nrf2 signaling pathway; upregulated the expression of GPX4, FTH1, and SLC7A11; and downregulated the expression of TFR1. In addition, the administration of EA resulted in a notable modification of the gut microbiota composition, characterized by a decrease in the Firmicutes to Bacteroidetes ratio. Conclusion EA had beneficial effects on weight loss and showed potential ability to repair the intestinal barrier by activating the Nrf2 signaling pathway, inhibiting intestinal inflammation and ferroptosis, and regulating the intestinal microbiota to treat IBD caused by HFD-induced obesity.
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Affiliation(s)
- Yunhao Yang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Fang Pang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
- Institute of Sports Biology, Shaanxi Normal University, Xi’an, Shaanxi, People’s Republic of China
| | - Min Zhou
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Xiao Guo
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Yan Yang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Wei Qiu
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Cai Liao
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Yang Chen
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
| | - Chenglin Tang
- College of Traditional Chinese Medicine, Chongqing Medical University, Chongqing, People’s Republic of China
- Chongqing Key Laboratory of Traditional Chinese Medicine for Prevention and Cure of Metabolic Diseases, Chongqing, People’s Republic of China
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Chen T, Jin N, Zhang Q, Li Z, Wang Q, Fang X. Auraptene Mitigates Colitis Induced by Dextran Sulfate Sodium in Mice by Regulating Specific Intestinal Flora and Repairing the Intestinal Barrier. Inflammation 2024:10.1007/s10753-023-01965-5. [PMID: 38236384 DOI: 10.1007/s10753-023-01965-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/11/2023] [Accepted: 12/29/2023] [Indexed: 01/19/2024]
Abstract
Auraptene (AUT) is widely known to possess both antioxidant and anti-inflammatory properties. This study attempted to evaluate the protective effects of AUT in dextran sodium sulfate (DSS)-induced colitis in mice and to determine the underlying molecular mechanisms. Our results suggest that AUT substantially minimizes the severity and worsening of DSS-induced colitis in mice, indicated by the lengthening of the colon, lower disease activity index, reduced oxidation levels, and attenuated inflammatory factors. Molecular studies revealed that AUT reduces the nuclear translocation of nuclear factor-κB (NF-κB), thereby inhibiting the expression of inflammatory factors. Additionally, AUT promotes the diversity of the intestinal flora in mice with colitis by increasing the number of beneficial bacteria such as Lactobacillaceae and lowering the number of harmful bacteria. In conclusion, AUT mitigates DSS-induced colitis by maintaining the integrity of the intestinal barrier and modulating the levels of the intestinal microbial species.
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Affiliation(s)
- Tong Chen
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Naizhong Jin
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Qi Zhang
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Zhongming Li
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Qiutao Wang
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Xuedong Fang
- Department of Gastrointestinal Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, 130033, China.
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Tang H, Li P, Guo X. Ferroptosis-Mediated Immune Microenvironment and Therapeutic Response in Inflammatory Bowel Disease. DNA Cell Biol 2023; 42:720-734. [PMID: 37943983 DOI: 10.1089/dna.2023.0260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disorder characterized by dysregulated immune responses in the gastrointestinal tract. One intriguing aspect of IBD is the potential involvement of ferroptosis, but the mechanism remains incompletely understood. In this study, 27 ferroptosis-related genes (FRGs) were identified differentially expressed between IBD and non-IBD control samples. We used CIBERSORT to compare alterations in the mucosal immune microenvironment between the above two group samples, and found that M1 macrophages and neutrophil infiltration increased in IBD. Two clusters based on consensus clustering of 27 FRGs led to significant changes in the abundance of CD4 memory resting T cells, M2 macrophages, and resting mast cells. Subsequently, 23 hub genes were identified, which could distinguish IBD samples into two distinct clusters with noticeable differences in immune therapy response. Furthermore, scRNA sequencing data based on these 23 hub genes uncovered the highest ferroptosis scores in CD8+ T effector memory (Tem) cells, and their expression underwent significant changes along the differentiation trajectory of CD8+ Tem cells. The random forest model identified eight decisive genes, out of which ferroptosis-related hub genes (SEMA3E, SLC46A1, AC092652.1, DACT2, IL17C, and KRTAP5.2) were confirmed by RT-qPCR in the IBD mouse model. This study reveals ferroptosis-mediated immune microenvironment in IBD and provides multiple potential targets for IBD treatment.
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Affiliation(s)
- Haiming Tang
- Department of Anorectal Surgery, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Peng Li
- Department of Anorectal Surgery, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiutian Guo
- Department of Anorectal Surgery, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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24
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Cheng J, Liu D, Huang Y, Chen L, Li Y, Yang Z, Fu S, Hu G. Phlorizin Mitigates Dextran Sulfate Sodium-Induced Colitis in Mice by Modulating Gut Microbiota and Inhibiting Ferroptosis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:16043-16056. [PMID: 37856155 DOI: 10.1021/acs.jafc.3c01497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Phlorizin (PHZ) is the main active component of apple peel and presents a potential application value. In the past few years, some reports have suggested that PHZ may have antioxidant and anti-inflammatory effects. Herein, we have attempted to assess the protective effects of PHZ on dextran sodium sulfate (DSS)-induced colitis in mice and to determine the underlying molecular mechanisms. Our results suggested that early intervention with PHZ (20, 40, and 80 mg/kg) significantly reduced the severity of DSS-induced colitis in mice, as presented by a longer colon, improved tight junction protein, decreased disease activity index, and attenuated inflammatory factors. Additionally, early intervention with + (20, 40, and 80 mg/kg) significantly inhibited ferroptosis by decreasing the surrogate ferroptosis marker levels (MDA and Iron Content). Additionally, PHZ (80 mg/kg) increased the diversity of intestinal flora in colitic mice by elevating the levels of beneficial bacteria (Lactobacillaceae and Muribaculaceae) and reducing the levels of harmful bacteria (Lachnospiraceae). This indirectly led to an increase in the amount of short-chain fatty acids. A fecal microbial transplantation (FMT) test was conducted to show that PHZ (80 mg/kg) ameliorated ulcerative colitis (UC) by regulating gut dysbiosis. In conclusion, early intervention with PHZ decreased DSS-induced colitis in mice by preserving their intestinal barrier and regulating their intestinal flora.
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Affiliation(s)
- Ji Cheng
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Dianfeng Liu
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Yaping Huang
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Lisha Chen
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Ying Li
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Zhanqing Yang
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shoupeng Fu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Guiqiu Hu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
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25
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Liu X, Xu C, Xiao W, Yan N. Unravelling the role of NFE2L1 in stress responses and related diseases. Redox Biol 2023; 65:102819. [PMID: 37473701 PMCID: PMC10404558 DOI: 10.1016/j.redox.2023.102819] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/02/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023] Open
Abstract
The nuclear factor erythroid 2 (NF-E2)-related factor 1 (NFE2L1, also known as Nrf1) is a highly conserved transcription factor that belongs to the CNC-bZIP subfamily. Its significance lies in its control over redox balance, proteasome activity, and organ integrity. Stress responses encompass a series of compensatory adaptations utilized by cells and organisms to cope with extracellular or intracellular stress initiated by stressful stimuli. Recently, extensive evidence has demonstrated that NFE2L1 plays a crucial role in cellular stress adaptation by 1) responding to oxidative stress through the induction of antioxidative responses, and 2) addressing proteotoxic stress or endoplasmic reticulum (ER) stress by regulating the ubiquitin-proteasome system (UPS), unfolded protein response (UPR), and ER-associated degradation (ERAD). It is worth noting that NFE2L1 serves as a core factor in proteotoxic stress adaptation, which has been extensively studied in cancer and neurodegeneration associated with enhanced proteasomal stress. In these contexts, utilization of NFE2L1 inhibitors to attenuate proteasome "bounce-back" response holds tremendous potential for enhancing the efficacy of proteasome inhibitors. Additionally, abnormal stress adaptations of NFE2L1 and disturbances in redox and protein homeostasis contribute to the pathophysiological complications of cardiovascular diseases, inflammatory diseases, and autoimmune diseases. Therefore, a comprehensive exploration of the molecular basis of NFE2L1 and NFE2L1-mediated diseases related to stress responses would not only facilitate the identification of novel diagnostic and prognostic indicators but also enable the identification of specific therapeutic targets for NFE2L1-related diseases.
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Affiliation(s)
- Xingzhu Liu
- Queen Mary College, Nanchang University, Nanchang, Jiangxi, 330031, China; School of Biological and Biomedical Sciences, Queen Mary University of London, London, United Kingdom
| | - Chang Xu
- Queen Mary College, Nanchang University, Nanchang, Jiangxi, 330031, China; School of Biological and Biomedical Sciences, Queen Mary University of London, London, United Kingdom
| | - Wanglong Xiao
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China
| | - Nianlong Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang, Jiangxi, 330006, China.
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26
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Chen C, Lan B, Xie G, Liu Z. Analysis and identification of ferroptosis-related genes in ulcerative colitis. Scand J Gastroenterol 2023; 58:1422-1433. [PMID: 37530128 DOI: 10.1080/00365521.2023.2240927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 07/21/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND Previous studies have shown that ferroptosis is associated with the pathogenesis of ulcerative colitis (UC). Therefore, this study aimed to identify key ferroptosis-related genes (FRGs) associated with the diagnosis of UC. METHODS UC-related expression datasets were downloaded from the Gene Expression Omnibus (GEO) database. First, Weighted Gene Co-expression Network Analysis (WGCNA) was used to identify UC-related genes (UCRGs). Differentially expressed genes (DEGs) between normal and UC groups were screened in GSE87466, and DEGs were subjected to an intersection analysis with FRGs and UCRGs to obtain ferroptosis-related DEGs (FR DEGs). Then a protein-protein interaction (PPI) network was constructed for FR DEGs. The hub genes were extracted based on the degree, Maximum Neighborhood Component (MNC), closeness, and Maximal Clique Centrality (MCC). Biomarkers with diagnostic values were screened by support vector machine (SVM) and the least absolute shrinkage and selection operator (LASSO) algorithms. Next, the infiltration of immune cells was compared between UC and normal groups, and the correlation between different immune cells and diagnostic genes was analyzed. The biological functions, classical pathways, and intermolecular interaction networks of diagnostic genes were characterized utilizing ingenuity pathway analysis (IPA). Finally, a TF-mRNA network was constructed and potential small-molecule compounds were screened. RESULTS Thirty-six FR DEGs were obtained, and these were enriched in biological processes such as positive regulation of cytokine production, cytokine-mediated signalling pathway, long-chain fatty acid-CoA ligase activity, etc. Among 18 hub genes, five genes (ALOX5, TIMP1, TNFAIP3, SOCS1, DUOX2) were captured with diagnostic values for UC, and they displayed significant differences between UC and normal groups. Sixteen immune cell infiltrates were significantly different between UC and normal groups, such as activated dendritic cells and resting dendritic cells. TNFAIP3 and ALOX5 were positively correlated with neutrophils, and TIMP1, SOCS1, ALOX5, and DUOX2 were negatively correlated with M2 macrophages. IPA showed that diagnostic genes were related to 43 function modules and activated 17 pathways. The constructed TF-mRNA regulatory network comprised three diagnostic genes and 17 differentially expressed TFs. Potential small-molecule compounds including helveticoside and cymarin were identified. CONCLUSION Our findings yielded several promising FRGs for UC, providing a scientific reference for further studies on the pathogenesis of UC.
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Affiliation(s)
- Chen Chen
- Department of Gastroenterology, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Bo Lan
- Department of Pharmacy, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Guanghong Xie
- Department of Emergency Internal Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
| | - Zhaoyang Liu
- Department of Emergency Internal Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, P.R. China
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Li X, Qi H, Zhang X, Liang H, Zeng N. Jing-Fang n-butanol extract and its isolated JFNE-C inhibit ferroptosis and inflammation in LPS induced RAW264.7 macrophages via STAT3/p53/SLC7A11 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023:116689. [PMID: 37315642 DOI: 10.1016/j.jep.2023.116689] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine has accumulated valuable experience in the treatment of inflammatory diseases caused by Ferroptosis. Jing Jie and Fang Feng are two warm acrid exterior-resolving medicinal herbs that play an important role in the prevention and treatment of inflammatory diseases. The pairing of the two forms a drug pair (Jing-Fang) that shows significant advantages in fighting oxidative stress and inflammation. Whereas, the underlying mechanism needs to be further improved. AIM OF THE STUDY In this study, the anti-inflammatory effect of Jing-Fang n-butanol extract (JFNE) and its isolate C (JFNE-C) on LPS-induced RAW264.7 cells and the regulation effect on ferroptosis were investigated, and also the mechanism of STAT3/p53/SLC7A11 signal pathway-related to ferroptosis. MATERIALS AND METHODS Jing-Fang n-butanol extract (JFNE) and its active isolate (JFNE-C) were extracted and isolated. LPS-induced inflammation model in RAW264.7 cells was established to assess the anti-inflammatory effect and ferroptosis mechanism of JFNE and JFNE-C. The levels of interleukin 6 (IL-6), interleukin 1β (IL-1β) and tumor necrosis factor α (TNF-α) were measured. The activity levels of antioxidant substances such as glutathione (GSH), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) were measured. Flow cytometry, immunofluorescence and transmission electron microscopy were used to assess ROS level, ferrous iron content and mitochondrial morphological changes. Through administration of Ferrostatin-1 (Fer-1), an ferroptosis inhibitor, to verify the role of JFNE and JFNE-C in regulating ferroptosis in resistance to the inflammatory response. Western blotting was used to determine whether the JFNE and JFNE-C exerted effectiveness by modulating the STAT3/p53/SLC7A11 signaling pathway. In addition, the important role of STAT3/p53/SLC7A11 signaling pathway in drug regulation of ferroptosis and inflammatory response was further validated by administration of S3I-201 (STAT3 inhibitor). Finally, high performance liquid chromatography-mass spectrometry (HPLC-MS) was used to determine the major active components of JFNE and JFNE-C. RESULTS The results showed that treated with JFNE-C significantly reduced the contents of interleukin 6 (IL-6), interleukin 1β (IL-1β) and tumor necrosis factor α (TNF-α) in the supernatant of LPS-induced RAW264.7 cells. The pretreatment with JFNE and JFNE-C significantly decreased intracellular oxidative stress levels, including reductions of ROS and MDA levels, and increases of GSH-Px, SOD and GSH levels. In addition, JFNE and JFNE-C obviously reduced intracellular ferrous iron level, and JFNE-C was effective in alleviating mitochondrial damage which includes mitochondrial shrinkage, increase of mitochondrial membrane density and reduction and absence of cristae. Further results indicated that JFNE-C showed a reduction of p53 and p-p53 protein levels in LPS-induced RAW264.7 cells, while significantly increasing the protein expression levels of STAT3, p-STAT3, SLC7A11 and GPX4. Besides, JFNE-C contains key active substances such as 5-O-Methylvisammioside, Hesperidin and Luteolin. Remarkably, this is different from JFNE, which is rich in nutrients such as sucrose, choline and various amino acids. CONCLUSION These results suggest that JFNE and JFNE-C may exert anti-inflammatory effect through activating the STAT3/p53/SLC7A11 signaling pathway to inhibit ferroptosis.
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Affiliation(s)
- Xiangyu Li
- State Key Laboratory of Southwestern Chinese Medicine Resources; School of Pharmacy, Chengdu University of TCM, Chengdu, 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
| | - Hu Qi
- State Key Laboratory of Southwestern Chinese Medicine Resources; School of Pharmacy, Chengdu University of TCM, Chengdu, 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Xiongwei Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources; School of Pharmacy, Chengdu University of TCM, Chengdu, 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Huan Liang
- State Key Laboratory of Southwestern Chinese Medicine Resources; School of Pharmacy, Chengdu University of TCM, Chengdu, 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China
| | - Nan Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources; School of Pharmacy, Chengdu University of TCM, Chengdu, 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, 611137, China.
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28
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Zhu D, Wu H, Jiang K, Xu Y, Miao Z, Wang H, Ma Y. Zero-Valence Selenium-Enriched Prussian Blue Nanozymes Reconstruct Intestinal Barrier against Inflammatory Bowel Disease via Inhibiting Ferroptosis and T Cells Differentiation. Adv Healthc Mater 2023; 12:e2203160. [PMID: 36651877 DOI: 10.1002/adhm.202203160] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/13/2023] [Indexed: 01/19/2023]
Abstract
The structural disruption of mechanical barrier and dysfunction of immune barrier in intestinal, are important factors, that aggravate inflammatory bowel disease (IBD). To tackle this challenge, a multifunctional nanozyme capable of scavenging reactive oxygen species (ROS) and inhibiting ferroptosis or T cells differentiation for IBD therapy is here reported. In this work, zero-valence selenium-enriched Prussian blue nanozymes (Se-HMPB nanozymes) are prepared via the hard template method. PB nanozymes with multi-enzyme activities can effectively scavenge various ROS in inflammatory tissues. Meanwhile, the presence of selenium element endows the glutathione peroxidase activity of Se-HMPB nanozymes, which can inhibit ferroptosis and reverse the lipid peroxidation of intestinal epithelial cells to protect the intestinal mechanical barrier in ulcerative colitis (UC) model. In addition, selenium supplementation can realize efficient inhibition on the differentiation of T cells in Crohn's disease (CD) model, regulating the intestinal immune barrier. Thus, the Se-HMPB nanozymes reconstructed intestinal barrier via inhibiting ferroptosis and T cells differentiation in UC and CD models, depicting great potential to alleviate IBD.
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Affiliation(s)
- Dongdong Zhu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Haitao Wu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230032, P. R. China
| | - Kai Jiang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Yifeng Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Zhaohua Miao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Hua Wang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230032, P. R. China
| | - Yan Ma
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Provincial Institute of Translational Medicine, Anhui Medical University, Hefei, 230032, P. R. China
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Luo L, Zhang S, Guo N, Li H, He S. ACSF2-mediated ferroptosis is involved in ulcerative colitis. Life Sci 2023; 313:121272. [PMID: 36509196 DOI: 10.1016/j.lfs.2022.121272] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/26/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
AIMS To investigate the role of ferroptosis-related genes in the induction into ulcerative colitis (UC) and provide new strategies for the prevention and treatment of UC. MATERIALS AND METHODS We screened the UC dataset from the GEO database and obtained ferroptosis-related genes from FerrDB and GeneCards. The R package "CancerSubtypes" was performed to identify the UC subtypes, followed by Short Time-series Expression Miner (STEM) analysis. The key genes were further screened by machine learning algorithms (LASSO and SVM-RFE). WB and IHC verified the changes in the expression content of ACSF2 in vivo and in vitro models. The changes in intracellular ROS and Fe2 + levels were detected. KEY FINDINGS Through bioinformatics analysis, we selected the ferroptosis-related gene ACSF2 (acyl CoA synthetase family member 2), which is significantly associated with immune-related pathways "Toll-like receptor signaling pathway", "NF-kappa B signaling pathway" and "NOD-like receptor signaling pathway". The expression of ACSF2 was significantly down-regulated in UC animals, Salmonella typhimurium colitis models and cell models, while the ferroptosis inhibitor Fer-1 reversed the expression of ACSF2 in LPS-induced cell models, indicating that the ferroptosis-related gene ACSF2 plays an important role in mediating ferroptosis and inflammation, and is expected to become a new target for further research. SIGNIFICANCE Ferroptosis is closely associated with the development of UC, and the ferroptosis-related gene ACSF2 can be used as a potential biomarker for the diagnosis and treatment of UC.
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Affiliation(s)
- Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, Guangdong 524023, China; The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, Guangdong 524023, China.
| | - Suzhou Zhang
- The First Clinical College, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Nuoqing Guo
- The First Clinical College, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Huizhen Li
- The First Clinical College, Guangdong Medical University, Zhanjiang, Guangdong 524023, China
| | - Shasha He
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing 100000, China.
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Gao Y, Zhang Z, Du J, Yang X, Wang X, Wen K, Sun X. Xue-Jie-San restricts ferroptosis in Crohn's disease via inhibiting FGL1/NF-κB/STAT3 positive feedback loop. Front Pharmacol 2023; 14:1148770. [PMID: 37153794 PMCID: PMC10154545 DOI: 10.3389/fphar.2023.1148770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/11/2023] [Indexed: 05/10/2023] Open
Abstract
Crohn's disease (CD) is an incurable inflammatory bowel disease due to unclear etiology and pathogenesis. Accumulating evidences have shown the harmful role of ferroptosis in CD onset and development. Additionally, fibrinogen-like protein 1 (FGL1) has been verified to be a potential therapeutic target of CD. Xue-Jie-San (XJS) is an effective prescription for treating CD. However, its therapeutic mechanism has not been fully elucidated. This study aimed to determine whether XJS alleviating CD via regulating ferroptosis and FGL1 expression. A colitis rat model was induced by 2,4,6-trinitrobenzene sulfonic acid and treated with XJS. The disease activity indices of the colitis rats were scored. Histopathological damage was assessed using HE staining. ELISA was performed to examine inflammatory cytokines. Transmission electron microscopy was utilized to observe ultrastructure changes in intestinal epithelial cells (IECs). Iron load was evaluated by examining iron concentrations, the expressions of FPN, FTH and FTL. Lipid peroxidation was investigated through detecting the levels of ROS, 4-HNE, MDA and PTGS2. Furthermore, the SLC7A11/GSH/GPX4 antioxidant system and FGL1/NF-κB/STAT3 signaling pathway were examined. The results showed that colitis was dramatically ameliorated in the XJS-treated rats as evidenced by relief of clinical symptoms and histopathological damages, downregulation of pro-inflammatory cytokines IL-6, IL-17 and TNF-α, and upregulation of anti-inflammatory cytokine IL-10. Furthermore, XJS administration led to ferroptosis inhibition in IECs by reducing iron overload and lipid peroxidation. Mechanistically, XJS enhanced the SLC7A11/GSH/GPX4 antioxidant system negatively regulated by the FGL1/NF-κB/STAT3 positive feedback loop. In conclusion, XJS might restrain ferroptosis in IECs to ameliorate experimental colitis by inhibition of FGL1/NF-κB/STAT3 positive feedback loop.
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Deng L, He S, Guo N, Tian W, Zhang W, Luo L. Molecular mechanisms of ferroptosis and relevance to inflammation. Inflamm Res 2022; 72:281-299. [PMID: 36536250 PMCID: PMC9762665 DOI: 10.1007/s00011-022-01672-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Inflammation is a defensive response of the organism to irritation which is manifested by redness, swelling, heat, pain and dysfunction. The inflammatory response underlies the role of various diseases. Ferroptosis, a unique modality of cell death, driven by iron-dependent lipid peroxidation, is regulated by multifarious cellular metabolic pathways, including redox homeostasis, iron processing and metabolism of lipids, as well as various signaling pathways associated with diseases. A growing body of evidence suggests that ferroptosis is involved in inflammatory response, and targeting ferroptosis has great prospects in preventing and treating inflammatory diseases. MATERIALS AND METHODS Relevant literatures on ferroptosis, inflammation, inflammatory factors and inflammatory diseases published from January 1, 2010 to now were searched in PubMed database. CONCLUSION In this review, we summarize the regulatory mechanisms associated with ferroptosis, discuss the interaction between ferroptosis and inflammation, the role of mitochondria in inflammatory ferroptosis, and the role of targeting ferroptosis in inflammatory diseases. As more and more studies have confirmed the relationship between ferroptosis and inflammation in a wide range of organ damage and degeneration, drug induction and inhibition of ferroptosis has great potential in the treatment of immune and inflammatory diseases.
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Affiliation(s)
- Liyan Deng
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Shasha He
- grid.24696.3f0000 0004 0369 153XBeijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100000 China
| | - Nuoqing Guo
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Wen Tian
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Weizhen Zhang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China. .,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, 524023, Guangdong, China.
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β-Caryophyllene Acts as a Ferroptosis Inhibitor to Ameliorate Experimental Colitis. Int J Mol Sci 2022; 23:ijms232416055. [PMID: 36555694 PMCID: PMC9784863 DOI: 10.3390/ijms232416055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Macrophage infiltration is one of the main pathological features of ulcerative colitis (UC) and ferroptosis is a type of nonapoptotic cell death, connecting oxidative stress and inflammation. However, whether ferroptosis occurs in the colon macrophages of UC mice and whether targeting macrophage ferroptosis is an effective approach for UC treatment remain unclear. The present study revealed that macrophage lipid peroxidation was observed in the colon of UC mice. Subsequently, we screened several main components of essential oil from Artemisia argyi and found that β-caryophyllene (BCP) had a good inhibitory effect on macrophage lipid peroxidation. Additionally, ferroptotic macrophages were found to increase the mRNA expression of tumor necrosis factor alpha (Tnf-α) and prostaglandin-endoperoxide synthase 2 (Ptgs2), while BCP can reverse the effects of inflammation activated by ferroptosis. Further molecular mechanism studies revealed that BCP activated the type 2 cannabinoid receptor (CB2R) to inhibit macrophage ferroptosis and its induced inflammatory response both in vivo and in vitro. Taken together, BCP potentially ameliorated experimental colitis inflammation by inhibiting macrophage ferroptosis. These results revealed that macrophage ferroptosis is a potential therapeutic target for UC and identified a novel mechanism of BCP in ameliorating experimental colitis.
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