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Bai F, Wang C, Fan X, Fang L, Li L, Zhang X, Yu K, Liu L, Guo L, Yang X. Novel biomarkers related to oxidative stress and immunity in chronic kidney disease. Heliyon 2024; 10:e27754. [PMID: 38515668 PMCID: PMC10955299 DOI: 10.1016/j.heliyon.2024.e27754] [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: 02/27/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024] Open
Abstract
Introduction The incidence of chronic kidney disease (CKD) has been increasing in recent years, gradually becoming a global health crisis. Due to limited treatment options, novel molecular pathways are urgently required to advance the treatment and diagnosis of CKD. Materials and methods The characteristics of differentially expressed genes (DEGs) in CKD patients were analyzed using Gene Expression Omnibus (GEO) database, and genes related to oxidative stress were retrieved from the Genecard database. Subsequently, a comprehensive approach was applied, including immune infiltration analysis, weighted gene co-expression network analysis (WGCNA) and protein-protein interaction (PPI) network analysis, to identify hub genes among differentially expressed immune-related oxidative stress genes (DEIOSGs). Validation of hub genes was performed using an external data set, and diagnostic potential capability was evaluated through receiver operating curve (ROC) analysis. In animal experiments, the expression of hub genes in CKD was confirmed by inducing a CKD model through a 5/6 nephrectomy procedure. Finally, the relationship between these hub genes and clinical characteristics were assessed using the Nephroseq v5 database. Results 29 DEIOSGs were identified by comprehensive bioinformatics analysis. PPI analysis screened the hub genes NCF2, S100A9, and SELL. ROC analysis demonstrated excellent diagnostic efficacy. Further validation from other databases and animal experiments confirmed a substantial upregulation in the expression of hub genes in CKD. Additionally, clinical correlation analysis established a clear link between hub gene expression and renal function deterioration. Conclusions Our study confirms NCF2, S100A9, and SELL as diagnostic biomarkers associated with immune response and oxidative stress in CKD, suggesting their potential as novel targets for CKD diagnosis and treatment.
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Affiliation(s)
- Fang Bai
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Chunjie Wang
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Xin Fan
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Lin Fang
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Luyao Li
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Xiaoning Zhang
- Department of Nephrology, Shengli Oilfield Central Hospital, Dongying, 257034, Shandong, China
| | - Kuipeng Yu
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Department of Blood Purification, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Basic Medical Sciences, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Lei Liu
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Department of Blood Purification, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Ling Guo
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Department of Blood Purification, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
| | - Xiangdong Yang
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
- Department of Blood Purification, Qilu Hospital of Shandong University, Jinan, 250012, Shandong, China
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Tackling Inflammatory Bowel Diseases: Targeting Proinflammatory Cytokines and Lymphocyte Homing. Pharmaceuticals (Basel) 2022; 15:ph15091080. [PMID: 36145301 PMCID: PMC9502105 DOI: 10.3390/ph15091080] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are characterized by chronic inflammatory disorders that are a result of an abnormal immune response mediated by a cytokine storm and immune cell infiltration. Proinflammatory cytokine therapeutic agents, represented by TNF inhibitors, have developed rapidly over recent years and are promising options for treating IBD. Antagonizing interleukins, interferons, and Janus kinases have demonstrated their respective advantages in clinical trials and are candidates for anti-TNF therapeutic failure. Furthermore, the blockade of lymphocyte homing contributes to the excessive immune response in colitis and ameliorates inflammation and tissue damage. Factors such as integrins, selectins, and chemokines jointly coordinate the accumulation of immune cells in inflammatory regions. This review assembles the major targets and agents currently targeting proinflammatory cytokines and lymphatic trafficking to facilitate subsequent drug development.
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Nie K, Zhang C, Deng M, Luo W, Ma K, Xu J, Wu X, Yang Y, Wang X. A Series of Genes for Predicting Responses to Anti-Tumor Necrosis Factor α Therapy in Crohn's Disease. Front Pharmacol 2022; 13:870796. [PMID: 35517818 PMCID: PMC9065476 DOI: 10.3389/fphar.2022.870796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/21/2022] [Indexed: 12/25/2022] Open
Abstract
Background: Patients with Crohn’s disease (CD) experience severely reduced quality of life, particularly those who do not respond to conventional therapies. Antitumor necrosis factor (TNF)α is commonly used as first-line therapy; however, many patients remain unresponsive to this treatment, and the identification of response predictors could facilitate the improvement of therapeutic strategies. Methods: We screened Gene Expression Omnibus (GEO) microarray cohorts with different anti-TNFα responses in patients with CD (discovery cohort) and explored the hub genes. The finding was confirmed in independent validation cohorts, and multiple algorithms and in vitro cellular models were performed to further validate the core predictor. Results: We screened four discovery datasets. Differentially expressed genes between anti-TNFα responders and nonresponders were confirmed in each cohort. Gene ontology enrichment revealed that innate immunity was involved in the anti-TNFα response in patients with CD. Prediction analysis of microarrays provided the minimum misclassification of genes, and the constructed network containing the hub genes supported the core status of TLR2. Furthermore, GSEA also supports TLR2 as the core predictor. The top hub genes were then validated in the validation cohort (GSE159034; p < 0.05). Furthermore, ROC analyses demonstrated the significant predictive value of TLR2 (AUC: 0.829), TREM1 (AUC: 0.844), and CXCR1 (AUC: 0.841). Moreover, TLR2 expression in monocytes affected the immune–epithelial inflammatory response and epithelial barrier during lipopolysaccharide-induced inflammation (p < 0.05). Conclusion: Bioinformatics and experimental research identified TLR2, TREM1, CXCR1, FPR1, and FPR2 as promising candidates for predicting the anti-TNFα response in patients with Crohn’s disease and especially TLR2 as a core predictor.
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Affiliation(s)
- Kai Nie
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Chao Zhang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Minzi Deng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Weiwei Luo
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Kejia Ma
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Jiahao Xu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xing Wu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yuanyuan Yang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xiaoyan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China.,Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
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