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Zhang G, Xu J, Du D, Liu Y, Dai L, Zhao Y. Diagnostic values, association with disease activity and possible risk factors of anti-PAD4 in rheumatoid arthritis: a meta-analysis. Rheumatology (Oxford) 2024; 63:914-924. [PMID: 37824204 DOI: 10.1093/rheumatology/kead545] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/02/2023] [Accepted: 09/08/2023] [Indexed: 10/14/2023] Open
Abstract
OBJECTIVE Anti-peptidyl arginine deaminase 4 (anti-PAD4) antibody has been a subject of investigation in RA in the last two decades. This meta-analysis investigated the diagnostic values, association with disease activity and possible risk factors of anti-PAD4 antibody in rheumatoid arthritis. METHOD We searched studies from five databases up to 1 December 2022. Bivariate mixed-effect models were used to pool the diagnostic accuracy indexes, and the summary receiver operating characteristics (SROC) curve was plotted. The quality of diagnostic studies was assessed using QUADAS-2. Non-diagnostic meta-analyses were conducted using the random-effects model. Sensitivity analysis, meta-regression, subgroup analyses and Deeks' funnel plot asymmetry test were used to address heterogeneity. RESULT Finally, 24 journal articles and one letter were included. Anti-PAD4 antibody had a good diagnostic value between RA and healthy individuals, but it might be lower between RA and other rheumatic diseases. Moreover, anti-PAD4 could slightly enhance RA diagnostic sensitivity with a combination of ACPA or ACPA/RF. Anti-PAD4 antibody was positively correlated with HLA-SE and negatively correlated with ever or current smoking in patients with RA. RA patients with anti-PAD4 antibody had higher DAS28, ESR, swollen joint count (SJC) and the possibility of having interstitial lung disease (ILD) and pulmonary fibrosis compared with those without. CONCLUSION Our study suggests that anti-PAD4 antibody is a potentially useful diagnostic biomarker and clinical indicator for RA. Further mechanistic studies are required to understand the impact of HLA-SE and smoking on the production of anti-PAD4 antibody.
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Affiliation(s)
- Guangyue Zhang
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jiayi Xu
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Dongru Du
- West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Lunzhi Dai
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zhao
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
- Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Cui T, Huang Z, Luo K, Nie J, Xv Y, Zeng Z, Liao L, Yang X, Zhou H. Identification of Hub Genes and Prediction of Targeted Drugs for Rheumatoid Arthritis and Idiopathic Pulmonary Fibrosis. Biochem Genet 2024:10.1007/s10528-023-10650-z. [PMID: 38334875 DOI: 10.1007/s10528-023-10650-z] [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: 06/25/2023] [Accepted: 12/25/2023] [Indexed: 02/10/2024]
Abstract
There is a potential link between rheumatoid arthritis (RA) and idiopathic pulmonary fibrosis (IPF). The aim of this study is to investigate the molecular processes that underlie the development of these two conditions by bioinformatics methods. The gene expression samples for RA (GSE77298) and IPF (GSE24206) were retrieved from the Gene Expression Omnibus (GEO) database. After identifying the overlapping differentially expressed genes (DEGs) for RA and IPF, we conducted functional annotation, protein-protein interaction (PPI) network analysis, and hub gene identification. Finally, we used the hub genes to predict potential medications for the treatment of both disorders. We identified 74 common DEGs for further analysis. Functional analysis demonstrated that cellular components, biological processes, and molecular functions all played a role in the emergence and progression of RA and IPF. Using the cytoHubba plugin, we identified 7 important hub genes, namely COL3A1, SDC1, CCL5, CXCL13, MMP1, THY1, and BDNF. As diagnostic indicators for RA, SDC1, CCL5, CXCL13, MMP1, and THY1 showed favorable values. For IPF, COL3A1, SDC1, CCL5, CXCL13, THY1, and BDNF were favorable diagnostic markers. Furthermore, we predicted 61 Chinese and 69 Western medications using the hub genes. Our research findings demonstrate a shared pathophysiology between RA and IPF, which may provide new insights for more mechanistic research and more effective treatments. These common pathways and hub genes identified in our study offer potential opportunities for developing more targeted therapies that can address both disorders.
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Affiliation(s)
- Ting Cui
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Zhican Huang
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Kun Luo
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Jingwei Nie
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Yimei Xv
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Zhu Zeng
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Linghan Liao
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Xin Yang
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China
| | - Haiyan Zhou
- College of Acupuncture-Moxibustion and Tuina, Chengdu University of TCM, Chengdu, 610000, Sichuan, China.
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Nava-Quiroz KJ, López-Flores LA, Pérez-Rubio G, Rojas-Serrano J, Falfán-Valencia R. Peptidyl Arginine Deiminases in Chronic Diseases: A Focus on Rheumatoid Arthritis and Interstitial Lung Disease. Cells 2023; 12:2829. [PMID: 38132149 PMCID: PMC10741699 DOI: 10.3390/cells12242829] [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: 10/14/2023] [Revised: 12/03/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023] Open
Abstract
Protein citrullination is accomplished by a broad enzyme family named Peptidyl Arginine Deiminases (PADs), which makes this post-translational modification in many proteins that perform physiological and pathologic mechanisms in the body. Due to these modifications, citrullination has become a significant topic in the study of pathological processes. It has been related to some chronic and autoimmune diseases, including rheumatoid arthritis (RA), interstitial lung diseases (ILD), multiple sclerosis (MS), and certain types of cancer, among others. Antibody production against different targets, including filaggrin, vimentin, and collagen, results in an immune response if they are citrullinated, which triggers a continuous inflammatory process characteristic of autoimmune and certain chronic diseases. PAD coding genes (PADI1 to PADI4 and PADI6) harbor variations that can be important in these enzymes' folding, activity, function, and half-life. However, few studies have considered these genetic factors in the context of chronic diseases. Exploring PAD pathways and their role in autoimmune and chronic diseases is a major topic in developing new pharmacological targets and valuable biomarkers to improve diagnosis and prevention. The present review addresses and highlights genetic, molecular, biochemical, and physiopathological factors where PAD enzymes perform a major role in autoimmune and chronic diseases.
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Affiliation(s)
- Karol J. Nava-Quiroz
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Tlalpan, Mexico City 14080, Mexico; (K.J.N.-Q.); (G.P.-R.)
- Programa de Doctorado en Ciencias Médicas Odontológicas y de la Salud, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Luis A. López-Flores
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Tlalpan, Mexico City 14080, Mexico; (K.J.N.-Q.); (G.P.-R.)
- Programa de Doctorado en Ciencias Médicas Odontológicas y de la Salud, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico
| | - Gloria Pérez-Rubio
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Tlalpan, Mexico City 14080, Mexico; (K.J.N.-Q.); (G.P.-R.)
| | - Jorge Rojas-Serrano
- Rheumatology Clinic, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Tlalpan, Mexico City 14080, Mexico
| | - Ramcés Falfán-Valencia
- HLA Laboratory, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Tlalpan, Mexico City 14080, Mexico; (K.J.N.-Q.); (G.P.-R.)
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