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Adas MA, Norton S, Balachandran S, Alveyn E, Russell MD, Esterine T, Amlani-Hatcher P, Oyebanjo S, Lempp H, Ledingham J, Kumar K, Galloway JB, Dubey S. Worse outcomes linked to ethnicity for early inflammatory arthritis in England and Wales: a national cohort study. Rheumatology (Oxford) 2022; 62:169-180. [PMID: 35536178 PMCID: PMC9788810 DOI: 10.1093/rheumatology/keac266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/01/2022] [Accepted: 04/19/2022] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE To assess variability in care quality and treatment outcomes across ethnicities in early inflammatory arthritis (EIA). METHODS We conducted an observational cohort study in England and Wales from May 2018 to March 2020, including patients with a suspected/confirmed EIA diagnosis. Care quality was assessed against six metrics defined by national guidelines. Clinical outcomes were measured using DAS28. Outcomes between ethnic groups ('White', 'Black', 'Asian', 'Mixed', 'Other') were compared, and adjusted for confounders. RESULTS A total of 35 807 eligible patients were analysed. Of those, 30 643 (85.6%) were White and 5164 (14.6%) were from ethnic minorities: 1035 (2.8%) Black; 2617 (7.3%) Asian; 238 (0.6%) Mixed; 1274 (3.5%) Other. In total, 12 955 patients had confirmed EIA, of whom 11 315 were White and 1640 were from ethnic minorities: 314 (2.4%) Black; 927 (7.1%) Asian; 70 (0.5%) Mixed; 329 (2.5%) Other. A total of 14 803 patients were assessed by rheumatology within three weeks, and 5642 started treatment within six weeks of referral. There were no significant differences by ethnicity. Ethnic minority patients had lower odds of disease remission at three months [adjusted odds ratio 0.79 (95% CI: 0.65, 0.96)] relative to White patients. Ethnic minorities were significantly less likely to receive initial treatment withMTX[0.68 (0.52, 0.90)] or with glucocorticoids [0.63 (0.49, 0.80)]. CONCLUSION We demonstrate that some ethnic minorities are less likely to achieve disease remission in three months following EIA diagnosis. This is not explained by delays in referral or time to treatment. Our data highlight the need for investigation into the possible drivers of these inequitable outcomes and reappraisal of EIA management pathways.
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Affiliation(s)
| | | | | | - Edward Alveyn
- Centre for Rheumatic Disease, Department of Inflammatory Biology
| | - Mark D Russell
- Centre for Rheumatic Disease, Department of Inflammatory Biology
| | | | | | | | - Heidi Lempp
- Centre for Rheumatic Disease, Department of Inflammatory Biology
| | - Joanna Ledingham
- Rheumatology Department, Portsmouth Hospitals University NHS Trust, Portsmouth
| | - Kanta Kumar
- Institute of Clinical Sciences, University of Birmingham, Birmingham
| | - James B Galloway
- Correspondence to: James Galloway, Weston Education Centre, 10 Cutcombe Road, SE5 9RJ London, UK. E-mail:
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Goni E, Regel I, Mahajan UM, Amodio A, De Marchi G, Beyer G, Zuppardo RA, Di Leo M, Lanzillotta M, Bonatti F, Kauke T, Dick A, Weiss FU, Schönermarck U, Lerch MM, Frulloni L, Cavestro GM, Mayerle J. HLA-DRB1∗16 and -DQB1∗05 alleles are strongly associated with autoimmune pancreatitis in a cohort of hundred patients. Pancreatology 2022; 22:466-471. [PMID: 35379557 DOI: 10.1016/j.pan.2022.03.015] [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: 12/03/2021] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES Autoimmune diseases are often associated with human leukocyte antigen (HLA) haplotypes, indicating that changes in major histocompatibility complex (MHC)-dependent self-peptide or antigen presentation contribute to autoimmunity. In our study, we aimed to investigate HLA alleles in a large European cohort of autoimmune pancreatitis (AIP) patients. METHODS Hundred patients with AIP, diagnosed and classified according to the International Consensus Diagnostic Criteria (ICDC), were prospectively enrolled in the study. Forty-four patients with chronic pancreatitis (CP) and 254 healthy subjects served as control groups. DNA was isolated from blood samples and two-digit HLA typing was performed with sequence-specific primer (SSP-) PCR. HLA allele association strength to AIP was calculated as odds ratio. RESULTS We uncovered a strong enrichment of HLA-DQB1 homozygosity in type 1 and type 2 AIP patients. Moreover, a significantly increased incidence of the HLA-DRB1∗16 and HLA-DQB1∗05 alleles and a concomitant lack of the HLA-DRB1∗13 allele was detected in AIP type 1 and type 2 patients. In contrast, the HLA-DQB1∗02 allele was underrepresented in the 'not otherwise specified' (NOS) AIP subtype. We detected no significant difference in the HLA-DRB3, HLA-DRB4 and HLA-DRB5 allele frequency in our cohort. CONCLUSIONS Although AIP type 1 and type 2 are characterized by distinct histopathological characteristics, both subtypes are associated with the same HLA alleles, indicating that the disease might rely on similar immunogenic mechanisms. However, AIP NOS represented another subclass of AIP.
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Affiliation(s)
- Elisabetta Goni
- Department of Medicine II, University Hospital, LMU, Munich, Germany
| | - Ivonne Regel
- Department of Medicine II, University Hospital, LMU, Munich, Germany.
| | | | - Antonio Amodio
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - Giulia De Marchi
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - Georg Beyer
- Department of Medicine II, University Hospital, LMU, Munich, Germany
| | - Raffaella Alessia Zuppardo
- Gastroenterology and Gastrointestinal Endoscopy, Division of Experimental Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - Milena Di Leo
- Gastroenterology and Gastrointestinal Endoscopy, Division of Experimental Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - Marco Lanzillotta
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, uniRAR, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco Bonatti
- Department of Medicine and Surgery, Medical Genetics Unit, University of Parma, Italy
| | - Teresa Kauke
- Division of Transfusion Medicine, Cellular Therapeutics and Hemostaseology, University Clinic LMU, Munich, Germany
| | - Andrea Dick
- Division of Transfusion Medicine, Cellular Therapeutics and Hemostaseology, University Clinic LMU, Munich, Germany
| | - Frank Ulrich Weiss
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Ulf Schönermarck
- Department of Medicine IV, University Hospital, LMU, Munich, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Greifswald, Germany
| | - Luca Frulloni
- Department of Medicine, Pancreas Center, University of Verona, Verona, Italy
| | - Giulia Martina Cavestro
- Gastroenterology and Gastrointestinal Endoscopy, Division of Experimental Oncology, Vita-Salute San Raffaele University, Milan, Italy
| | - Julia Mayerle
- Department of Medicine II, University Hospital, LMU, Munich, Germany
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Durez P, Westhovens R, Baeke F, Elbez Y, Robert S, Ahmad HA. Identification of poor prognostic joint locations in an early rheumatoid arthritis cohort at risk of rapidly progressing disease: a post-hoc analysis of the Phase III AGREE study. BMC Rheumatol 2022; 6:24. [PMID: 35418172 PMCID: PMC9009012 DOI: 10.1186/s41927-022-00252-4] [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: 08/20/2021] [Accepted: 02/09/2022] [Indexed: 11/23/2022] Open
Abstract
Background Rheumatoid arthritis (RA) is a heterogeneous disease with established poor prognostic factors such as seropositivity, joint damage, and high disease activity at an early, treatment-naïve stage of disease. However, few studies have examined if specific joint locations are correlated with these factors in such a population. This analysis explored the potential correlation of individual swollen and erosive joints with other disease characteristics at baseline and with remission rates in a post-hoc analysis of the Phase III randomized AGREE study. Methods Methotrexate (MTX)-naïve, erosive, RF- and/or ACPA-positive early RA patients (N = 509) were retrospectively evaluated. Baseline joint swelling was analyzed for large and small joints. Baseline erosions were analyzed for wrist, MCP1–5, IP1, PIP2–5 and MTP1–5. Remission rates were assessed after 6 months of treatment with abatacept (ABA) + MTX (N = 256) or MTX (N = 253). The following statistical tests were used: Chi-Square or Fisher’s exact test (categorical variables); Student’s t-test or Wilcoxon rank-sum test (continuous variables); continuity-corrected Chi-square test (efficacy remission endpoints). Results Baseline swelling was most frequent in wrist (91.9%) and MCP2 joint (89.1%), while baseline erosion was most frequent in MTP5 joint (43.5%). Swollen shoulder was significantly correlated (p < 0.0001) with swelling of almost all other large or medium joints. Baseline swelling in the knee, temporomandibular joint (TMJ), wrist and elbow was highly correlated (p < 0.001) with higher tender and swollen joint counts, higher DAS28(CRP) and higher SDAI and CDAI. Baseline swelling was not correlated with erosion per joint, except for MCP2. The largest difference in mean Boolean remission rates at 6 months was in patients with baseline swollen wrist favoring ABA + MTX (14.0% vs 4.4%; p < 0.001). Conclusions Swelling in the large and medium joints (knee, TMJ, elbow and wrist) was highly correlated with severe disease activity while MCP2 swelling seemed to be correlated with joint damage. The correlation of joint locations at an early, treatment-naïve stage with poor prognostic factors, higher disease activity and joint damage, could establish a rapidly progressing anatomical pattern in early RA. Trial registration: ClinicalTrials.gov NCT00122382, registered July 2005. Supplementary Information The online version contains supplementary material available at 10.1186/s41927-022-00252-4.
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Affiliation(s)
- Patrick Durez
- Institut de Recherche Expérimentale Et Clinique (IREC), Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Service de rhumatologie, 1200, Bruxelles, Belgium.
| | - Rene Westhovens
- Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, KU Leuven, Leuven, Belgium
| | - Femke Baeke
- Bristol-Myers Squibb, Braine L'Alleud, Belgium
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Wang DW, Pang XT, Zhang H, Gao HX, Leng YF, Chen FQ, Zhang R, Feng Y, Sun ZL. Gut microbial dysbiosis in rheumatoid arthritis: a systematic review protocol of case-control studies. BMJ Open 2022; 12:e052021. [PMID: 35365513 PMCID: PMC8977794 DOI: 10.1136/bmjopen-2021-052021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Rheumatoid arthritis (RA) has a huge societal impact due to the high prevalence, irreversible joint damage and systemic complications. Gut microbiota plays an important role in the pathogenesis and progression of RA by regulating the host immune system. Restoring intestinal homeostasis by altering the microbiota could be an attractive strategy for the prevention and treatment of RA. However, the signature features of microbial dysbiosis in RA are still controversial. Therefore, we aim to elucidate the characteristic change in the diversity and composition of gut microbiota in RA. METHODS AND ANALYSIS We will systematically search through PubMed, EMBASE, Web of Science and Cochrane Library, as well as dissertations and conference proceedings. The reference lists of all included studies will be also reviewed to retrieve additional relevant studies. The case-control studies that reported either the relative abundance of bacteria at the phylum or genus level or at least one of the alpha-diversity, beta-diversity indexes in both RA and healthy controls will be included. Eligible studies will be screened independently by two reviewers according to the inclusion criteria. The Newcastle-Ottawa Quality Assessment Scale will be used to assess the quality of the included studies. Data extraction, qualitative and quantitative analysis will be performed within the gut microbial dysbiosis in RA. The expected outcomes will be the identification of the specific changes in composition and diversity of the gut microbiota in patients with RA. The quality of evidence will be assessed by the Grading of Recommendations Assessment, Development and Evaluation framework. ETHICS AND DISSEMINATION Ethical approval is unnecessary as this review does not address the data and privacy of patients. The results will be published in a peer-reviewed scientific journal and conference presentations. PROSPERO REGISTRATION NUMBER CRD42021225229.
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Affiliation(s)
- Dan-Wen Wang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Xiang-Tian Pang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Heng Zhang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Hai-Xia Gao
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yu-Fei Leng
- Animal Surgery Laboratory, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng-Qin Chen
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Rui Zhang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yun Feng
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Zhi-Ling Sun
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
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A previously unappreciated polymorphism in the beta chain of I-A s expressed in autoimmunity-prone SJL mice: Combined impact on antibody, CD4 T cell recognition and MHC class II dimer structural stability. Mol Immunol 2022; 143:17-26. [PMID: 34995990 PMCID: PMC9261112 DOI: 10.1016/j.molimm.2021.12.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/13/2021] [Accepted: 12/26/2021] [Indexed: 01/14/2023]
Abstract
In the process of structure-function studies on the MHC class II molecule expressed in autoimmunity prone SJL mice, I-As, we discovered a disparity from the reported sequence of the MHC class II beta chain. The variant is localized at a highly conserved site of the beta chain, at residue 58. Our studies revealed that this single amino acid substitution of Pro for Ala at this residue, found in I-As, changes the structure of the MHC class II molecule, as evidenced by a loss of recognition by two monoclonal antibodies, and elements of MHC class II conformational stability identified through molecular dynamics simulation. Two other rare polymorphisms in I-As involved in hydrogen bonding potential between the alpha chain and the peptide main chain are located at the same end of the MHC class II binding pocket, studied in parallel may impact the consequences of the β chain variant. Despite striking changes in MHC class II structure, CD4 T cell recognition of influenza-derived peptides was preserved. These disparate findings were reconciled by discovering, through monoclonal antibody blocking approaches, that CD4 T cell recognition by I-As restricted CD4 T cells focused more on the region of MHC class II at the peptide's amino terminus. These studies argue that the conformational variability or flexibility of the MHC class II molecule in that region of I-As select a CD4 T cell repertoire that deviates from the prototypical docking mode onto MHC class II peptide complexes. Overall, our results are consistent with the view that naturally occurring MHC class II molecules can possess polymorphisms that destabilize prototypical features of the MHC class II molecule but that can maintain T cell recognition of the MHC class II:peptide ligand via alternate docking modes.
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Heluany CS, Scharf P, Schneider AH, Donate PB, Dos Reis Pedreira Filho W, de Oliveira TF, Cunha FQ, Farsky SHP. Toxic mechanisms of cigarette smoke and heat-not-burn tobacco vapor inhalation on rheumatoid arthritis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:151097. [PMID: 34695477 DOI: 10.1016/j.scitotenv.2021.151097] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/24/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
Tobacco combustion exposure worsens rheumatoid arthritis (RA). Non-combustible tobacco devices, as heat-not-burn tobacco (HNBT), are emerging as harm reduction to smokers by releasing nicotine and lower combustible tobacco products. Nevertheless, HNBT toxicity remains unclear. Hence, here we investigated the impacts of the tobacco combustible product (cigarette smoke; CS) or HNBT vapor exposures on antigen-induced arthritis (AIA) in C57BL/6 mice. Animals were exposed to airflow, HNBT vapor, or CS during 1 h/twice a day, under the Health Canada Intense (HCI) smoking regime, between days 14 to 20 after the first immunization. At day 21, 16 h after the last exposures, mice were i.a. challenged and the AIA effects were evaluated 24 h later. CS- or HNBT-exposed mice presented equivalent blood nicotine levels. CS exposure worsened articular symptoms, pulmonary inflammation, and expression of lung metallothioneins. Nevertheless, CS or HNBT exposures reduced lymphoid organs' cellularity, splenocyte proliferation and IL-2 secretion. Additional in vitro CS or HNBT exposures confirmed the harmful effects on splenocytes, which were partially mediated by the activation of nicotine/α7nAchR pathway. Associated, data demonstrate the toxic mechanisms of CS or HNBT inhalation at HCI regime on RA, and highlight that further investigations are fundamental to assure the toxicity of emerging tobacco products on the immune system during specific challenges.
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Affiliation(s)
- Cintia Scucuglia Heluany
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Pablo Scharf
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | | | - Paula Barbim Donate
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil
| | | | - Tiago Franco de Oliveira
- Department of Pharmacosciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | - Fernando Queiroz Cunha
- Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, Brazil
| | - Sandra Helena Poliselli Farsky
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil.
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García-Río F, Alcázar-Navarrete B, Castillo-Villegas D, Cilloniz C, García-Ortega A, Leiro-Fernández V, Lojo-Rodriguez I, Padilla-Galo A, Quezada-Loaiza CA, Rodriguez-Portal JA, Sánchez-de-la-Torre M, Sibila O, Martínez-García MA. [Translated article] Biological Biomarkers in Respiratory Diseases. ARCHIVOS DE BRONCONEUMOLOGÍA 2022. [DOI: 10.1016/j.arbres.2022.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tønnessen TC, Melleby AO, Hauge-Iversen IM, Espe EKS, Ahmed MS, Ueland T, Haavardsholm EA, Atkinson SM, Melum E, Attramadal H, Sjaastad I, Vinge LE. Impact of delayed type hypersensitivity arthritis on development of heart failure by aortic constriction in mice. PLoS One 2022; 17:e0262821. [PMID: 35077491 PMCID: PMC8789180 DOI: 10.1371/journal.pone.0262821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 01/05/2022] [Indexed: 11/19/2022] Open
Abstract
Aims Patients with rheumatoid arthritis (RA) have increased risk of heart failure (HF). The mechanisms and cardiac prerequisites explaining this association remain unresolved. In this study, we sought to determine the potential cardiac impact of an experimental model of RA in mice subjected to HF by constriction of the ascending aorta. Methods Aorta was constricted via thoracotomy and placement of o-rings with inner diameter 0.55 mm or 0.66 mm, or sham operated. RA-like phenotype was instigated by delayed-type hypersensitivity arthritis (DTHA) two weeks after surgery and re-iterated after additional 18 days. Cardiac magnetic resonance imaging (MRI) was performed before surgery and at successive time points throughout the study. Six weeks after surgery the mice were euthanized, blood and tissue were collected, organ weights were documented, and expression levels of cardiac foetal genes were analysed. In a supplemental study, DTHA-mice were euthanized throughout 14 days after induction of arthritis, and blood was analysed for important markers and mediators of RA (SAP, TNF-α and IL-6). In order to put the latter findings into clinical context, the same molecules were analysed in serum from untreated RA patients and compared to healthy controls. Results Significant elevations of inflammatory markers were found in both patient- and murine blood. Furthermore, the DTHA model appeared clinically relevant when compared to the inflammatory responses observed in three prespecified RA severity disease states. Two distinct trajectories of cardiac dysfunction and HF development were found using the two o-ring sizes. These differences were consistent by both MRI, organ weights and cardiac foetal gene expression levels. Still, no difference within the HF groups, nor within the sham groups, could be found when DTHA was induced. Conclusion DTHA mediated systemic inflammation did not cause, nor modify HF caused by aortic constriction. This indicates other prerequisites for RA-induced cardiac dysfunction.
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Affiliation(s)
- Theis Christian Tønnessen
- Department of Medicine, Diakonhjemmet Hospital, Oslo, Norway
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- * E-mail:
| | - Arne Olav Melleby
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Institute for Experimental Medical Research and KG Jebsen Center for Cardiac Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Ida Marie Hauge-Iversen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Institute for Experimental Medical Research and KG Jebsen Center for Cardiac Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Emil Knut Stenersen Espe
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Institute for Experimental Medical Research and KG Jebsen Center for Cardiac Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | | | - Thor Ueland
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - Espen Andre Haavardsholm
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway
| | | | - Espen Melum
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Norwegian PSC Research Center, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Research Institute of Internal Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital, Oslo, Norway
- Section for Gastroenterology, Department of Transplantation Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Håvard Attramadal
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Ivar Sjaastad
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Institute for Experimental Medical Research and KG Jebsen Center for Cardiac Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Leif Erik Vinge
- Department of Medicine, Diakonhjemmet Hospital, Oslo, Norway
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Liu YH, Lu YK, Liu XT, Li YL, Hu LK, Gao HY, Yang K, Yan YX. Association of household solid fuel use and long-term exposure to PM 2.5 with arthritis in middle-aged and older population in China: A cohort study. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113104. [PMID: 34953276 DOI: 10.1016/j.ecoenv.2021.113104] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/02/2021] [Accepted: 12/15/2021] [Indexed: 05/26/2023]
Abstract
Air pollutants are common modifiable risk factors for arthritis. To explore the longitudinal effects of air pollution on arthritis based on a cohort study in middle-aged and elder people of China. Data was obtained from the China Health and Retirement Longitudinal Study (CHARLS) from 2011 to 2018. A total of 7449 participants aged 45 years and older were involved in our study. The generalized linear mixed models were conducted to examine the separate and joint effects of household air pollution and outdoor air pollution on arthritis, respectively. We found a strong significant association between air pollution and arthritis incidence. Individuals cooking primarily with solid fuel were more likely in higher risk of arthritis compared with cleaner fuel (OR= 1.15; 95% CI: 1.08-1.23). The group-based trajectory model identified four trajectory groups, compared with group "High-Decreasing rapidly", adjusted ORs of incident arthritis for group "Middle-Decreasing moderately", "Low-Decreasing slowly" and "Low-Stably" were 1.36 (95% CI, 1.03-1.79), 1.36 (95% CI, 1.01-1.83) and 1.81 (95% CI, 1.30-2.52), respectively. These associations were generally higher in participants younger than 65 years. In addition, solid fuel use and PM2.5 exposure had additive and multiplicative effects on arthritis. The results suggested that solid fuel use and long-term PM2.5 exposure were associated with a higher incidence of arthritis. Therefore, it is necessary to restrict solid fuel use to reduce household air pollution and make stronger environmental protection policies to reduce PM2.5 concentration.
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Affiliation(s)
- Yu-Hong Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Ya-Ke Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiang-Tong Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing 100069, China
| | - Yan-Ling Li
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Li-Kun Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Hao-Yu Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Kun Yang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, Beijing 100069, China.
| | - Yu-Xiang Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Capital Medical University, Beijing 100069, China; Municipal Key Laboratory of Clinical Epidemiology, Beijing 100069, China.
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Garcia-Rio F, Alcázar B, Castillo D, Cilloniz C, García-Ortega A, Leiro-Fernández V, Lojo-Rodriguez I, Padilla A, Quezada CA, Rodriguez-Portal JA, Sánchez-de-la-Torre M, Sibila O, Martinez-Garcia MA. Biomarcadores biológicos en las enfermedades respiratorias. Arch Bronconeumol 2022; 58:323-333. [DOI: 10.1016/j.arbres.2022.01.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/11/2022] [Accepted: 01/11/2022] [Indexed: 11/26/2022]
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Huang LJ, Zha JJ, Cao NW, Zhou HY, Chu XJ, Wang H, Li XB, Li BZ. Temperature might increase the hospital admission risk for rheumatoid arthritis patients in Anqing, China: a time-series study. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:201-211. [PMID: 34718869 PMCID: PMC8557265 DOI: 10.1007/s00484-021-02207-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 05/20/2023]
Abstract
Temperature has been studied in relation to many health outcomes. However, few studies have explored its effect on the risk of hospital admission for rheumatoid arthritis (RA). A distributed lag non-linear model (DLNM) was used to analyze associations between mean temperature, diurnal temperature range (DTR), temperature change between neighboring days (TCN), and daily admissions for RA from 2015 to 2019 in Anqing, China. Subgroup analyses based on age, gender, rheumatoid factors, and admission route were performed. In total, 1456 patients with RA were hospitalized. Regarding the cumulative-lag effects of extreme cold temperature (5th percentile = 3℃), the risks of admissions for RA were increased and highest at lag 0-11 (RR = 2.68, 95% CI: 1.23-5.86). Exposing to low (5th percentile = 1.9℃) and high (95th percentile = 14.2℃) DTRs both had increased risks of RA admission, with highest RRs of 1.40 (95% CI: 1.03-1.91) and 1.24 (95% CI: 1.0-1.53) at lag 0 day, respectively. As for TCN, the marginal risk of admission in RA patients was found when exposed to high TCN (95th percentile = 2.9℃) with the largest single-day effect at lag 10 (RR = 1.11, 95% CI: 1.01-1.23). In subgroup analyses, females were more susceptible to extreme cold temperature, low and high DTRs, and high TCN. In regard to extreme cold temperature, significant risk of hospital admission in females only appeared at lag 2 (RR = 1.48, 95% CI: 1.02-2.15) and lag 0-2 (RR = 2.35, 95% CI: 1.11-4.95). It is clear that RA patients exposed to changing temperature may increase risks of admission.
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Affiliation(s)
- Li-Juan Huang
- Medical Department, The Affiliated Anqing Hospital of Anhui Medical University, Anqing, Anhui, China
| | - Jun-Jing Zha
- Medical Department, The Affiliated Anqing Hospital of Anhui Medical University, Anqing, Anhui, China
| | - Nv-Wei Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Hao-Yue Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xiu-Jie Chu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Hua Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xian-Bao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Bao-Zhu Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, 230032, Anhui, China.
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娄 雪, 廖 莉, 李 兴, 王 楠, 刘 爽, 崔 若, 徐 健. [Methylation status and expression of TWEAK gene promoter region in peripheral blood of patients with rheumatoid arthritis]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021; 53:1020-1025. [PMID: 34916675 PMCID: PMC8695153 DOI: 10.19723/j.issn.1671-167x.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To explore the relationship between tumor necrosis factor like weak inducer of apoptosis (TWEAK) gene and the pathogenesis of rheumatoid arthritis (RA) by detecting the DNA methylation level, mRNA expression level and serum protein concentration of TWEAK gene in peripheral blood. METHODS The MassARRAY method was used to detect the DNA methylation level of the TWEAK gene in the peripheral blood of 112 RA patients and 86 matched healthy volunteers. The real-time quantitative polymerase chain reaction method was used to detect the mRNA expression level of the TWEAK gene in the peripheral blood of the subjects. The enzyme-linked immunosorbent assay method was used to detect the serum TWEAK protein concentration of the subjects. The TWEAK gene DNA methylation level, mRNA expression level and serum protein concentration between the RA group and the healthy control group were compared, and the relationship between it and the degree of disease activity analyzed. RESULTS The overall DNA methylation level of TWEAK gene and the DNA methylation levels of CpG_11, CpG_17.18.19.20, CpG_40.41.42 site in the RA group were higher than those in the healthy control group (P=0.002, P=0.01, P=0.006, P=0.002, respectively). The DNA methylation level of CpG_55.56 site in the high disease activity group was higher than that in the medium and low disease activity group (P=0.041). The expression level of TWEAK gene mRNA in the peripheral blood of the RA group was lower than that of the healthy control group (P=0.023). The expression level of TWEAK gene mRNA in the high disease activity group was lower than that in the medium and low disease activity group (P=0.035). The serum TWEAK protein concentration of the RA group was not significantly different from that of the healthy control group (P=0.508), but it was positively correlated with the mRNA expression level (r=0.482, P < 0.001). CONCLUSION The TWEAK gene is closely related to the onset and progression of RA, and its hypermethylation state may be one of the epigenetic mechanisms regulating its low mRNA expression, and it can be used as one of the important indicators for clinical monitoring and evaluation of RA.
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Affiliation(s)
- 雪 娄
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 莉 廖
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 兴珺 李
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 楠 王
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 爽 刘
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 若玫 崔
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - 健 徐
- />昆明医科大学第一附属医院风湿免疫科,昆明 650032Department of Rheumatology and Immunology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
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Lin J, Tang J, Lin J, He Y, Yu Z, Jiang R, Yang B, Ou Q. YY1 regulation by miR-124-3p promotes Th17 cell pathogenicity through interaction with T-bet in rheumatoid arthritis. JCI Insight 2021; 6:e149985. [PMID: 34806650 PMCID: PMC8663781 DOI: 10.1172/jci.insight.149985] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 10/08/2021] [Indexed: 11/17/2022] Open
Abstract
Th17 cells are involved in rheumatoid arthritis (RA) pathogenesis. Our previous studies have revealed that transcription factor Yin Yang 1 (YY1) plays an important role in the pathogenic mechanisms of RA. However, whether YY1 has any role in Th17 cell pathogenicity and what molecular regulatory mechanism is involved remain poorly understood. Here, we found the proportion of pathogenic Th17 (pTh17) cells was significantly higher in RA than in control individuals and showed a potential relationship with YY1 expression. In addition, we also observed YY1 expression was increased in pTh17, and the pTh17 differentiation was hampered by YY1 knockdown. Consistently, knockdown of YY1 decreased the proportion of pTh17 cells and attenuated joint inflammation in collagen-induced arthritis mice. Mechanistically, YY1 could regulate the pathogenicity of Th17 cells through binding to the promoter region of transcription factor T-bet and interacting with T-bet protein. This function of YY1 for promoting pTh17 differentiation was specific to Th17 cells and not to Th1 cells. Moreover, we found miR-124-3p negatively correlated with YY1 in RA patients, and it could bind to 3'-UTR regions of YY1 to inhibit the posttranscriptional translation of YY1. Altogether, these findings indicate YY1 regulation by miR-124-3p could specifically promote Th17 cell pathogenicity in part through interaction with T-bet, and these findings present promising therapeutic targets in RA.
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Affiliation(s)
- Jinpiao Lin
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Jifeng Tang
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Junyu Lin
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yujue He
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Ziqing Yu
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Renquan Jiang
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Bin Yang
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
| | - Qishui Ou
- Department of Laboratory Medicine, Gene Diagnosis Research Center, and
- Fujian Key Laboratory of Laboratory Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China
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Zappe K, Pirker C, Miedl H, Schreiber M, Heffeter P, Pfeiler G, Hacker S, Haslik W, Spiegl-Kreinecker S, Cichna-Markl M. Discrimination between 34 of 36 Possible Combinations of Three C>T SNP Genotypes in the MGMT Promoter by High Resolution Melting Analysis Coupled with Pyrosequencing Using A Single Primer Set. Int J Mol Sci 2021; 22:ijms222212527. [PMID: 34830407 PMCID: PMC8621402 DOI: 10.3390/ijms222212527] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 11/12/2021] [Indexed: 11/22/2022] Open
Abstract
Due to its cost-efficiency, high resolution melting (HRM) analysis plays an important role in genotyping of candidate single nucleotide polymorphisms (SNPs). Studies indicate that HRM analysis is not only suitable for genotyping individual SNPs, but also allows genotyping of multiple SNPs in one and the same amplicon, although with limited discrimination power. By targeting the three C>T SNPs rs527559815, rs547832288, and rs16906252, located in the promoter of the O6-methylguanine-DNA methyltransferase (MGMT) gene within a distance of 45 bp, we investigated whether the discrimination power can be increased by coupling HRM analysis with pyrosequencing (PSQ). After optimizing polymerase chain reaction (PCR) conditions, PCR products subjected to HRM analysis could directly be used for PSQ. By analyzing oligodeoxynucleotide controls, representing the 36 theoretically possible variant combinations for diploid human cells (8 triple-homozygous, 12 double-homozygous, 12 double-heterozygous and 4 triple-heterozygous combinations), 34 out of the 36 variant combinations could be genotyped unambiguously by combined analysis of HRM and PSQ data, compared to 22 variant combinations by HRM analysis and 16 variant combinations by PSQ. Our approach was successfully applied to genotype stable cell lines of different origin, primary human tumor cell lines from glioma patients, and breast tissue samples.
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Affiliation(s)
- Katja Zappe
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria;
| | - Christine Pirker
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, 1090 Vienna, Austria; (C.P.); (P.H.)
- Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria; (H.M.); (M.S.)
| | - Heidi Miedl
- Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria; (H.M.); (M.S.)
- Department of Obstetrics and Gynecology, Medical University of Vienna, 1090 Vienna, Austria
| | - Martin Schreiber
- Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria; (H.M.); (M.S.)
- Department of Obstetrics and Gynecology, Medical University of Vienna, 1090 Vienna, Austria
| | - Petra Heffeter
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, 1090 Vienna, Austria; (C.P.); (P.H.)
- Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria; (H.M.); (M.S.)
| | - Georg Pfeiler
- Department of Obstetrics and Gynecology, Division of Gynecology and Gynecological Oncology, Medical University of Vienna, 1090 Vienna, Austria; (G.P.); (W.H.)
| | - Stefan Hacker
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, 1090 Vienna, Austria;
- Department of Plastic, Reconstructive and Aesthetic Surgery, Landesklinikum Wiener Neustadt, 2700 Wiener Neustadt, Austria
| | - Werner Haslik
- Department of Obstetrics and Gynecology, Division of Gynecology and Gynecological Oncology, Medical University of Vienna, 1090 Vienna, Austria; (G.P.); (W.H.)
| | - Sabine Spiegl-Kreinecker
- Department of Neurosurgery, Medical Faculty, Kepler University Hospital GmbH, Johannes Kepler University Linz, 4040 Linz, Austria;
| | - Margit Cichna-Markl
- Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria;
- Correspondence:
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Shen J, Chen Q, Yang G, He Y. Observation of the curative effect of Guizhi-Shaoyao-Zhimu decoction combined with methotrexate in the treatment of early rheumatoid arthritis based on ultrasonic evaluation: study protocol of a randomized, double-blind, controlled clinical trial. Trials 2021; 22:764. [PMID: 34732237 PMCID: PMC8565030 DOI: 10.1186/s13063-021-05579-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 08/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease with the primary clinical symptoms of joint swelling and pain. Early detection of erosion and synovial inflammation at an active stage resulting from RA can prevent damage to the joints and activity restriction. However, there are still many patients who do not respond to these treatments; the development of newer, safer drugs is urgently needed. Compared to Western medicine, Guizhi-Shaoyao-Zhimu decoction has equal or higher efficacy and safety for RA patients. With the widespread use of musculoskeletal ultrasound (MSUS), this technology holds great value for the degree of joint damage in RA patients, guiding the clinical selection of treatments, and assessing of prognosis. Therefore, we designed a double-blinded randomized controlled clinical trial to measure the safety and efficacy of Guizhi-Shaoyao-Zhimu decoction in treating early-stage RA using MSUS. METHODS This study is a randomized, double-blinded, parallel group, placebo-controlled trial. A total of 152 adult participants with early RA will be enrolled, with balanced treatment allocation (1:1). The experimental intervention will be Guizhi-Shaoyao-Zhimu decoction plus the conventional medicine methotrexate and the control intervention will be placebo plus the conventional drug methotrexate for 3 months. In addition, both groups will receive folic acid during treatment to prevent side effects from methotrexate. The primary outcomes are the erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), hepatic and renal function, visual analog scale, disease activity score in 28 joints, measurement scale for TCM symptoms, and 7-joint ultrasound score. DISCUSSION We designed this double-blinded randomized controlled clinical trial to evaluate the efficacy and safety of Guizhi-Shaoyao-Zhimu decoction in RA patients using MSUS. The results of this trial may provide insights into how to improve the clinical symptoms of RA patients and delay further joint destruction. We hope that this trial may provide preliminary evidence of the efficacy of Guizhi-Shaoyao-Zhimu decoction in treating RA patients and that these results aid researchers, practitioners, and patients alike. AIM The main aim of the study is to clarify the efficacy and safety of Guizhi-Shaoyao-Zhimu decoction in patients with early RA. TRIAL REGISTRATION Chinese Clinical Trials Register ChiCTR2000036141 . Registered on 21 August 2020 (retroactively registered).
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Affiliation(s)
- Jiaying Shen
- Department of Rheumatism, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200021, China
| | - Qianwen Chen
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Guanghui Yang
- Department of Rheumatism, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200021, China.
| | - Yikun He
- Department of Rheumatism, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200021, China.
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Reichardt SD, Amouret A, Muzzi C, Vettorazzi S, Tuckermann JP, Lühder F, Reichardt HM. The Role of Glucocorticoids in Inflammatory Diseases. Cells 2021; 10:cells10112921. [PMID: 34831143 PMCID: PMC8616489 DOI: 10.3390/cells10112921] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
For more than 70 years, glucocorticoids (GCs) have been a powerful and affordable treatment option for inflammatory diseases. However, their benefits do not come without a cost, since GCs also cause side effects. Therefore, strong efforts are being made to improve their therapeutic index. In this review, we illustrate the mechanisms and target cells of GCs in the pathogenesis and treatment of some of the most frequent inflammatory disorders affecting the central nervous system, the gastrointestinal tract, the lung, and the joints, as well as graft-versus-host disease, which often develops after hematopoietic stem cell transplantation. In addition, an overview is provided of novel approaches aimed at improving GC therapy based on chemical modifications or GC delivery using nanoformulations. GCs remain a topic of highly active scientific research despite being one of the oldest class of drugs in medical use.
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Affiliation(s)
- Sybille D. Reichardt
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Agathe Amouret
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Chiara Muzzi
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
| | - Sabine Vettorazzi
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany; (S.V.); (J.P.T.)
| | - Jan P. Tuckermann
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany; (S.V.); (J.P.T.)
| | - Fred Lühder
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Center Göttingen, 37075 Göttingen, Germany;
| | - Holger M. Reichardt
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany; (S.D.R.); (A.A.); (C.M.)
- Correspondence: ; Tel.: +49-551-3963365
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Lee S, Kang S, Eun Y, Won HH, Kim H, Lee J, Koh EM, Cha HS. Machine learning-based prediction model for responses of bDMARDs in patients with rheumatoid arthritis and ankylosing spondylitis. Arthritis Res Ther 2021; 23:254. [PMID: 34627335 PMCID: PMC8501710 DOI: 10.1186/s13075-021-02635-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/27/2021] [Indexed: 01/22/2023] Open
Abstract
Background Few studies on rheumatoid arthritis (RA) have generated machine learning models to predict biologic disease-modifying antirheumatic drugs (bDMARDs) responses; however, these studies included insufficient analysis on important features. Moreover, machine learning is yet to be used to predict bDMARD responses in ankylosing spondylitis (AS). Thus, in this study, machine learning was used to predict such responses in RA and AS patients. Methods Data were retrieved from the Korean College of Rheumatology Biologics therapy (KOBIO) registry. The number of RA and AS patients in the training dataset were 625 and 611, respectively. We prepared independent test datasets that did not participate in any process of generating machine learning models. Baseline clinical characteristics were used as input features. Responders were defined as those who met the ACR 20% improvement response criteria (ACR20) and ASAS 20% improvement response criteria (ASAS20) in RA and AS, respectively, at the first follow-up. Multiple machine learning methods, including random forest (RF-method), were used to generate models to predict bDMARD responses, and we compared them with the logistic regression model. Results The RF-method model had superior prediction performance to logistic regression model (accuracy: 0.726 [95% confidence interval (CI): 0.725–0.730] vs. 0.689 [0.606–0.717], area under curve (AUC) of the receiver operating characteristic curve (ROC) 0.638 [0.576–0.658] vs. 0.565 [0.493–0.605], F1 score 0.841 [0.837–0.843] vs. 0.803 [0.732–0.828], AUC of the precision-recall curve 0.808 [0.763–0.829] vs. 0.754 [0.714–0.789]) with independent test datasets in patients with RA. However, machine learning and logistic regression exhibited similar prediction performance in AS patients. Furthermore, the patient self-reporting scales, which are patient global assessment of disease activity (PtGA) in RA and Bath Ankylosing Spondylitis Functional Index (BASFI) in AS, were revealed as the most important features in both diseases. Conclusions RF-method exhibited superior prediction performance for responses of bDMARDs to a conventional statistical method, i.e., logistic regression, in RA patients. In contrast, despite the comparable size of the dataset, machine learning did not outperform in AS patients. The most important features of both diseases, according to feature importance analysis were patient self-reporting scales. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-021-02635-3.
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Affiliation(s)
- Seulkee Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Seonyoung Kang
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Yeonghee Eun
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Hong-Hee Won
- Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Samsung Medical Center, Seoul, Republic of Korea
| | - Hyungjin Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Jaejoon Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Eun-Mi Koh
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Hoon-Suk Cha
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.
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Efuni E, Cytryn S, Boland P, Niewold T, Pavlick A, Weber J, Sandigursky S. Risk of Toxicity After Initiating Immune Checkpoint Inhibitor Treatment in Patients With Rheumatoid Arthritis. J Clin Rheumatol 2021; 27:267-271. [PMID: 31977647 PMCID: PMC7374048 DOI: 10.1097/rhu.0000000000001314] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Immune checkpoint inhibitors (ICIs) are increasingly used to treat advanced cancer. Rheumatoid arthritis (RA) is associated with an increased risk of malignancies; however, patients with RA have been excluded from ICI trials. In this study, we evaluated risk of toxicity after initiation of ICI treatment in RA patients. METHODS We conducted a single-institution, medical records review analysis to assess the incidence of immune-related adverse events (irAEs) and autoimmune disease (AID) flares among patients with AIDs treated with ICIs from 2011 to 2018. A subgroup analysis for RA patients was performed with frequencies of irAEs and AID flares reported. RESULTS Twenty-two patients with RA who were treated with ICI for malignancy were identified. At the time of ICI initiation, 86% had inactive RA disease activity. Immune-related adverse events occurred in 7 (32%) of patients, with 2 (9%) developing grade 3 (i.e., severe) irAEs. Immune checkpoint inhibitors were temporarily discontinued because of irAEs in 5 patients (23%), and permanently in 1 patient. Rheumatoid arthritis flares occurred in 12 patients (55%). Of those, 10 (83%) received oral corticosteroids with an adequate treatment response. CONCLUSIONS Our analysis suggests that irAEs following ICI treatment are not increased among RA patients compared with other cancer patients. Heightened RA disease activity during ICI treatment is common, but most adverse events are manageable with oral corticosteroids, and few require permanent ICI discontinuation. A close collaboration between the oncologist and rheumatologist is advisable when considering ICIs in patients with RA.
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Affiliation(s)
- Elizaveta Efuni
- Division of Rheumatology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Samuel Cytryn
- Division of Rheumatology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Patrick Boland
- Division of Rheumatology, Department of Medicine, New York University School of Medicine/NYU Langone Health
- Division of Oncology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Timothy Niewold
- Division of Rheumatology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Anna Pavlick
- Division of Oncology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Jeffrey Weber
- Division of Oncology, Department of Medicine, New York University School of Medicine/NYU Langone Health
| | - Sabina Sandigursky
- Division of Rheumatology, NYU School of Medicine, 301 E 17 Street, Suite 1410, New York, NY 10003
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Bouzit L, Malspeis S, Sparks JA, Cui J, Karlson EW, Yoshida K, Costenbader KH. Assessing improved risk prediction of rheumatoid arthritis by environmental, genetic, and metabolomic factors. Semin Arthritis Rheum 2021; 51:1016-1022. [PMID: 34416623 PMCID: PMC8475497 DOI: 10.1016/j.semarthrit.2021.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/29/2021] [Accepted: 07/06/2021] [Indexed: 01/10/2023]
Abstract
OBJECTIVE We sought to improve seropositive rheumatoid arthritis (RA) risk prediction using a novel weighted genetic risk score (wGRS) and preclinical plasma metabolites associated with RA risk. Predictive performance was compared to previously validated models including RA-associated environmental factors. METHODS This nested case-control study matched incident seropositive RA cases (meeting ACR 1987 or EULAR/ACR 2010 criteria) in the Nurses' Health Studies (NHS) to two controls on age, blood collection features, and post-menopausal hormone use at pre-RA blood draw. Environmental variables were measured at the questionnaire cycle preceding blood draw. Four models were generated and internally validated using a bootstrapped optimism estimate: (a) base with environmental factors (E), (b) environmental, genetic and gene-environment interaction factors (E + G + GEI), c) environmental and metabolic factors (E + M), and d) all factors (E + G + GEI + M). A fifth model including all factors and interaction terms was fit using ridge regression and cross-validation. Models were compared using area under the receiver operating characteristic curve (AUC). RESULTS 150 pre-RA cases and 455 matched controls were included. The E model yielded an optimism-corrected AUC of 0.622. The E + M model did not show improvement over the E model (corrected AUC 0.620). Including genetic factors increased prediction, producing corrected AUCs of 0.677 in the E + G + GEI model and 0.674 in the E + G + GEI + M model. Similarly, the performance of the cross-validated ridge regression model yielded an AUC of 0.657. CONCLUSION Addition of wGRS and gene-environment interaction improved seropositive RA risk prediction models. Preclinical metabolite levels did not significantly contribute to prediction.
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Affiliation(s)
- Lilia Bouzit
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Boston, MA 02115, USA; Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
| | - Susan Malspeis
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jeffrey A Sparks
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jing Cui
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Elizabeth W Karlson
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kazuki Yoshida
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Karen H Costenbader
- Division of Rheumatology, Inflammation and Immunity, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Wang D, Wu Z, Zhao C, Yang X, Wei H, Liu M, Zhao J, Qian M, Li Z, Xiao J. KP-10/Gpr54 attenuates rheumatic arthritis through inactivating NF-κB and MAPK signaling in macrophages. Pharmacol Res 2021; 171:105496. [PMID: 33609696 DOI: 10.1016/j.phrs.2021.105496] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/27/2021] [Accepted: 02/14/2021] [Indexed: 11/26/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease mainly characterized as chronic inflammation of joint. Both genetic and environmental factors play important roles in RA progression. G protein-coupled receptor 54 (GPR54) and Kisspeptins (KPs), the natural GRP54 ligands encoded by Kiss-1 gene are known to play important roles in immune regulation but the precise role of KP-10/GPR54 in RA remains elusive. Kiss1/Gpr54 expression was determined by immunohistochemistry on protein and real-time PCR on RNA from isolated RA-patient synovial tissue and PBMC. Collagen-induced arthritis (CIA) mouse models were used to investigate the effect of KP-10/Gpr54 on the rheumatic arthritis severity in the mice. The signaling pathway involved in KP-10/GPR54 was assessed by western blot and immunofluorescence.In the present study, we demonstrated that GPR54 upregulation in bone marrow-derived macrophages (BMDM) was associated with the severity of RA. In addition, Gpr54-/- increased the inflammatory cytokines induced by lipopolysaccharide (LPS) in BMDM and diseased severity of CIA (n = 10), while KP-10 reduced the LPS-induced inflammatory cytokines in vitro and ameliorated the CIA symptoms in vivo. Furthermore, we demonstrated that KP-10/GPR54 binds to PP2A-C to suppressed LPS induced NF-κB and MAPK signaling in BMDM. All these findings suggest that KP-10/GPR54 may be a novel therapeutic target for the diagnosis and treatment of RA.
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Affiliation(s)
- Dongsheng Wang
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China
| | - Zhixiang Wu
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China
| | - Chenglong Zhao
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China
| | - Xinghai Yang
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China
| | - Haifeng Wei
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China
| | - Mingyao Liu
- East China Normal University and Shanghai Changzheng Hospital Joint Research Center for Orthopedic Oncology, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Science and School of Life sciences, East China Normal University, 200241 Shanghai, China
| | - Jian Zhao
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China.
| | - Ming Qian
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China.
| | - Zhenxi Li
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China.
| | - Jianru Xiao
- Spinal Tumor Center, Department of Orthopedic Oncology, Changzheng Hospital, The Second Military Medical University, No. 415 Fengyang Road, Huangpu District, Shanghai, China.
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Kaur G, Sharma A, Bhatnagar A. Role of oxidative stress in pathophysiology of rheumatoid arthritis: insights into NRF2-KEAP1 signalling. Autoimmunity 2021; 54:385-397. [PMID: 34415206 DOI: 10.1080/08916934.2021.1963959] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis is one of the most prevalent, chronic, inflammatory disorders involving multiple articular and extra-articular complications. Immune deregulation owing to a combinatorial network of cells, inflammatory components, degrading enzymes, angiogenetic factors, exhibiting pleiotropy, synergy, or redundancy, is a critical hallmark for synovial inflammatory milieu reasoning clinical heterogeneity and variability of the disease. As a prototype of autoimmune disease, the pathophysiology of rheumatoid arthritis has been linked to oxidative stress. However, the exact mechanism for these potential driving factors contributing to disease inception and perpetuation is yet elusive. Nuclear factor erythroid 2-related factor 2 - Kelch ECH associating protein 1 (Nrf2-Keap1) pathway, controlled via multifactorial regulation, functions as a ubiquitous, evolutionarily conserved intracellular defense mechanism. Nrf2-Keap1 signalling maintains homeostatic responses against a plethora of environmental or endogenous deviations in cellular growth, death, redox metabolism, inflammation, bone remodelling, detoxification, etc. Administration of antioxidants as an add-on pharmacotherapy along with conventional drugs has been elucidated as a better measure for disease management. Some of the most promising natural and synthetic redox-based therapeutic compounds function as either scavengers of reactive species, or inhibitors of their sources, or activators of an endogenous antioxidant system (Nrf2-Keap1). The present review focuses on the binomial "rheumatoid arthritis-oxidative stress", bringing insights into their pathophysiological interrelationships and Nrf2 signalling, as well as the implications of potential diagnostic oxidative stress biomarkers and therapeutic interventions directed for disease management in patients with rheumatoid arthritis.Highlights:RA has complex etiopathogenesis, evolving from multiple endogenous and exogenous factors with oxidative stress as a critical pathogenic signature.Oxidative damage and damaged compounds could serve as potent biomarkers for disease diagnosis, therapeutic response, and prognosis.One of the supreme cytoprotective signalling cascades, the Nrf2-Keap1 pathway has been known to elicit a protective effect against RA and various other autoimmune, inflammatory, degenerative disorders.Inclusion of natural and synthetic antioxidants has been encouraged by various studies for additional therapy to conventional drugs for better management of the disease.
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Affiliation(s)
- Gurjasmine Kaur
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Aman Sharma
- Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Issilbayeva A, Kushugulova A, Meiramova A, Kozhakhmetov S, Akhmetova Z, Nurgaziyev M, Chulenbayeva L, Babenko D, Kunz J, Ainabekova B. Epidemiological Trends of Rheumatoid Arthritis and PADI4, PTPN22, and HLA-DRB9 Genes Distribution in the Kazakhstan Population. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: The prevalence of rheumatoid arthritis (RA) is 1% in the global population. The lack of epidemiological studies in developing countries makes it difficult to obtain a complete global epidemiological picture of RA. RA develops due to the interaction of multiple genetic and environmental factors, though the contribution of these factors to the various disease occurrence seen in different populations is unclear.
AIM: The aim of our study was to analyze the dynamics of the general prevalence and incidence of RA among the population of Kazakhstan in 2017–2019 as well as to investigate the three most common single-nucleotide polymorphisms (SNP) of RA in the Kazakhstan population.
METHODS: The analysis of statistical data on Form 12 “On the health of the people and the health care system” was carried out. Prevalence and incidence rates were calculated according to generally accepted rules. Demographic data for the Republic of Kazakhstan were obtained from the official website stat.gov.kz. Our study included 70 RA patients and 113 control subjects. Blood samples were collected and genotyped for peptidylarginine deiminase 4 (PADI4), protein tyrosine phosphatase 22, and human leukocyte antigen (HLA)-DRB9 SNPs by reverse transcription polymerase chain reaction.
RESULTS: The prevalence of RA in Kazakhstan in 2017–2019 was 0.36–0.38%, with an incidence rate of 0.085–0.087%, which can be comparable to data of other countries in Central Asia. The allele and genotypes frequency analyses were carried out between patients and controls. The HLA-DRB9 showed significant association of the G allele odds ratio (OR) 1.96 (95% confidence interval [CI]: 1.252–3.081), p= 0.0025 and G/G genotype OR = 3.67 (95% CI: 1.58–8.54), p = 0.00162 with RA in our sample. Strong association between anti-citrullinated protein antibody (ACPA) profile and PADI4 (OR 12.19 [95% CI: 2.19–67.94], p = 0.00115) was found.
CONCLUSION: There was an increase in RA prevalence with age among females and a higher crude prevalence and incidence of RA in the southern regions of Kazakhstan. HLA-DRB9 prevailed in Kazakhstani patients with RA, PADI4 showed association with ACPA-positive RA. Further studies on larger samples are required to confirm our obtained results.
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Zhou S, Lu H, Xiong M. Identifying Immune Cell Infiltration and Effective Diagnostic Biomarkers in Rheumatoid Arthritis by Bioinformatics Analysis. Front Immunol 2021; 12:726747. [PMID: 34484236 PMCID: PMC8411707 DOI: 10.3389/fimmu.2021.726747] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/30/2021] [Indexed: 01/16/2023] Open
Abstract
Background Rheumatoid arthritis (RA) is a chronic systemic autoimmune disorder characterized by inflammatory cell infiltration, leading to persistent synovitis and joint destruction. The pathogenesis of RA remains unclear. This study aims to explore the immune molecular mechanism of RA through bioinformatics analysis. Methods Five microarray datasets and a high throughput sequencing dataset were downloaded. CIBERSORT algorithm was performed to evaluate immune cell infiltration in synovial tissues between RA and healthy control (HC). Wilcoxon test and Least Absolute Shrinkage and Selection Operator (LASSO) regression were conducted to identify the significantly different infiltrates of immune cells. Differentially expressed genes (DEGs) were screened by "Batch correction" and "RobustRankAggreg" methods. Functional correlation of DEGs were analyzed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). Candidate biomarkers were identified by cytoHubba of Cytoscape, and their diagnostic effectiveness was predicted by Receiver Operator Characteristic Curve (ROC) analysis. The association of the identified biomarkers with infiltrating immune cells was explored using Spearman's rank correlation analysis in R software. Results Ten significantly different types of immune cells between RA and HC were identified. A total of 202 DEGs were obtained by intersection of DEGs screened by two methods. The function of DEGs were significantly associated with immune cells. Five hub genes (CXCR4, CCL5, CD8A, CD247, and GZMA) were screened by R package "UpSet". CCL5+CXCR4 and GZMA+CD8A were verified to have the capability to diagnose RA and early RA with the most excellent specificity and sensitivity, respectively. The correlation between immune cells and biomarkers showed that CCL5 was positively correlated with M1 macrophages, CXCR4 was positively correlated with memory activated CD4+ T cells and follicular helper T (Tfh) cells, and GZMA was positively correlated with Tfh cells. Conclusions CCL5, CXCR4, GZMA, and CD8A can be used as diagnostic biomarker for RA. GZMA-Tfh cells, CCL5-M1 macrophages, and CXCR4- memory activated CD4+ T cells/Tfh cells may participate in the occurrence and development of RA, especially GZMA-Tfh cells for the early pathogenesis of RA.
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Affiliation(s)
- Sheng Zhou
- Department of Orthopedics, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, China
| | - Hongcheng Lu
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Min Xiong
- Department of Orthopedics, Sinopharm Dongfeng General Hospital, Hubei University of Medicine, Shiyan, China
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Mining the capacity of human-associated microorganisms to trigger rheumatoid arthritis-A systematic immunoinformatics analysis of T cell epitopes. PLoS One 2021; 16:e0253918. [PMID: 34185818 PMCID: PMC8241107 DOI: 10.1371/journal.pone.0253918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/15/2021] [Indexed: 12/14/2022] Open
Abstract
Autoimmune diseases, often triggered by infection, affect ~5% of the worldwide population. Rheumatoid Arthritis (RA)–a painful condition characterized by the chronic inflammation of joints—comprises up to 20% of known autoimmune pathologies, with the tendency of increasing prevalence. Molecular mimicry is recognized as the leading mechanism underlying infection-mediated autoimmunity, which assumes sequence similarity between microbial and self-peptides driving the activation of autoreactive lymphocytes. T lymphocytes are leading immune cells in the RA-development. Therefore, deeper understanding of the capacity of microorganisms (both pathogens and commensals) to trigger autoreactive T cells is needed, calling for more systematic approaches. In the present study, we address this problem through a comprehensive immunoinformatics analysis of experimentally determined RA-related T cell epitopes against the proteomes of Bacteria, Fungi, and Viruses, to identify the scope of organisms providing homologous antigenic peptide determinants. By this, initial homology screening was complemented with de novo T cell epitope prediction and another round of homology search, to enable: i) the confirmation of homologous microbial peptides as T cell epitopes based on the predicted binding affinity to RA-related HLA polymorphisms; ii) sequence similarity inference for top de novo T cell epitope predictions to the RA-related autoantigens to reveal the robustness of RA-triggering capacity for identified (micro/myco)organisms. Our study reveals a much larger repertoire of candidate RA-triggering organisms, than previously recognized, providing insights into the underestimated role of Fungi in autoimmunity and the possibility of a more direct involvement of bacterial commensals in RA-pathology. Finally, our study pinpoints Endoplasmic reticulum chaperone BiP as the most potent (most likely mimicked) RA-related autoantigen, opening an avenue for identifying the most potent autoantigens in a variety of different autoimmune pathologies, with possible implications in the design of next-generation therapeutics aiming to induce self-tolerance by affecting highly reactive autoantigens.
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75
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Fazeli MS, Khaychuk V, Wittstock K, Breznen B, Crocket G, Pourrahmat MM, Ferri L. Cardiovascular Disease in Rheumatoid Arthritis: Risk Factors, Autoantibodies, and the Effect of Antirheumatic Therapies. CLINICAL MEDICINE INSIGHTS-ARTHRITIS AND MUSCULOSKELETAL DISORDERS 2021; 14:11795441211028751. [PMID: 34262386 PMCID: PMC8246480 DOI: 10.1177/11795441211028751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/10/2021] [Indexed: 11/21/2022]
Abstract
Objective: To scope the current published evidence on cardiovascular risk factors in rheumatoid arthritis (RA) focusing on the role of autoantibodies and the effect of antirheumatic agents. Methods: Two reviews were conducted in parallel: A targeted literature review (TLR) describing the risk factors associated with cardiovascular disease (CVD) in RA patients; and a systematic literature review (SLR) identifying and characterizing the association between autoantibody status and CVD risk in RA. A narrative synthesis of the evidence was carried out. Results: A total of 69 publications (49 in the TLR and 20 in the SLR) were included in the qualitative evidence synthesis. The most prevalent topic related to CVD risks in RA was inflammation as a shared mechanism behind both RA morbidity and atherosclerotic processes. Published evidence indicated that most of RA patients already had significant CV pathologies at the time of diagnosis, suggesting subclinical CVD may be developing before patients become symptomatic. Four types of autoantibodies (rheumatoid factor, anti-citrullinated peptide antibodies, anti-phospholipid autoantibodies, anti-lipoprotein autoantibodies) showed increased risk of specific cardiovascular events, such as higher risk of cardiovascular death in rheumatoid factor positive patients and higher risk of thrombosis in anti-phospholipid autoantibody positive patients. Conclusion: Autoantibodies appear to increase CVD risk; however, the magnitude of the increase and the types of CVD outcomes affected are still unclear. Prospective studies with larger populations are required to further understand and quantify the association, including the causal pathway, between specific risk factors and CVD outcomes in RA patients.
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Affiliation(s)
| | | | | | - Boris Breznen
- Evidinno Outcomes Research Inc., Vancouver, BC, Canada
| | - Grace Crocket
- Bristol Myers Squibb, Princeton, NJ, USA.,Joulé Inc., Edison, NJ, USA
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Genetic Factors of Predisposition and Clinical Characteristics of Rheumatoid Arthritis in Russian Patients. J Pers Med 2021; 11:jpm11060469. [PMID: 34070522 PMCID: PMC8228085 DOI: 10.3390/jpm11060469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 12/14/2022] Open
Abstract
Rheumatoid arthritis (RA) is a multifactorial disease caused by a genetic predisposition and environmental factors. Predisposing alleles of various genes have a relatively small influence on the disease risk when they appear separately, but in combination, they predispose an individual to RA development. We genotyped 125 patients with RA including 60 SNPs and sequenced coding part of six genes by next-generation sequencing (NGS) technology on a target panel (IAD177464_185). According to our data, the alleles HLA-DRB1*04, HLA-DRB1*01, HLA-B*27, PTPN22 (rs2476601), TNF (rs1800629), TPMT (rs2842934), and IL4 (rs2243250), and genotypes HLA-DRB1*04:04, HLA-DRB1*01:16, PTPN22 (rs2476601), TPMT (rs2842934), were significantly associated with the RA development. Associations with clinical criteria (DAS28-CRP, HAQ-DI, and CDAI) and biochemical factors were investigated. We have shown that the PADI4 genotypes (rs11203367, rs2240340, rs11203366, and rs874881) are significantly associated with the baseline levels of DAS28-CRP, HAQ-DI, and CDAI; genotypes IL23R (rs7530511) and TNFRSF1A (rs748004, rs2228144) with the level of anti citrullinated peptide antibodies (ACPA); the genotypes DHODH (rs3213422) and MTHFR (rs180113) with the concentration of C-reactive protein (CRP); and the genotypes IL2RA (rs2104286), IRAK3 (rs11541076), and IL4R (rs1801275) with the level of rheumatoid factor (RF). Application of targeted NGS panel contributes to expanded genotyping to identify risk groups among the RA patients.
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77
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Ali Y, Khan S, Chen Y, Farooqi N, Islam ZU, Akhtar M, Aamir, Aman A, Shah AA, Jamal M, Jalil F. Association of AFF3 Gene Polymorphism rs10865035 with Rheumatoid Arthritis: A Population-Based Case-Control Study on a Pakistani Cohort. Genet Res (Camb) 2021; 2021:5544198. [PMID: 34104118 PMCID: PMC8147531 DOI: 10.1155/2021/5544198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/09/2021] [Accepted: 04/29/2021] [Indexed: 11/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is one of the complex diseases with the involvement of the genetic as well as environmental factors in its onset and severity. Different genome-wide association and candidate gene studies have shown the role of several genetic variants in multiple loci/genes with ethnical and geographical variations. This study was designed to detect the association of a single-nucleotide polymorphism (SNP) rs10865035 in the AFF3 gene with the genetic background of rheumatoid arthritis (RA) in the Pakistani cohort. A total of 703 individuals, including 409 RA patients and 294 healthy controls, were genotyped using TaqMan assay and Tri primer ARMS-PCR (amplification-refractory mutation system-polymerase chain reaction) methods. The association of rs10865035 with the RA was statistically determined using different models. Interestingly, besides the homozygous recessive model (G/G vs. A/G + A/A) (OR = 1.693(1.06-2.648); P = 0.025), all other models, which included the codominant (χ 2 = 5.169; P = 0.075), homozygous dominant (A/A vs. G/G + A/G) (OR = 0.867 (0.636-1.187); P = 0.41), heterozygous (A/G vs. A/A + GG) (OR = 0.491 (0.667-1.215); P = 0.49), and additive model (OR = 0.826 (0.665-1.027); P = 0.08) showed insignificant distribution of the genotypes among the cases and controls. These findings suggest that the AFF3 gene (rs10865035) has no significant role in the onset of RA in the Pakistani population.
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Affiliation(s)
- Yasir Ali
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Suleman Khan
- Lady Ready Hospital, MTI Peshawar, Peshawar, Pakistan
| | - Yangchao Chen
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, Pakistan
| | - Nadia Farooqi
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Zia-Ul Islam
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Mehran Akhtar
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, Pakistan
| | - Aamir
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Aisha Aman
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Aftab Ali Shah
- Department of Biotechnology, University of Malakand, Chakdara, Pakistan
| | - Muhsin Jamal
- Department of Microbiology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Fazal Jalil
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Rodríguez Portal JA, López Ramírez C, Aguilera Cros C. Rheumatoid Arthritis and Tobacco. Arch Bronconeumol 2021; 57:315-316. [PMID: 32564945 DOI: 10.1016/j.arbres.2020.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 11/16/2022]
Affiliation(s)
- José Antonio Rodríguez Portal
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Hospital Virgen del Rocío, Sevilla, España; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), España.
| | - Cecilia López Ramírez
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Hospital Virgen del Rocío, Sevilla, España; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), España
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Wang H, Wang Y. Association between interleukin-1 alpha rs1800587 polymorphism and rheumatoid arthritis: A meta-analysis. Sci Prog 2021; 104:368504211013647. [PMID: 33950757 PMCID: PMC10455026 DOI: 10.1177/00368504211013647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
No consistent results have been reached on the relationship of interleukin-1 (IL-1) rs1800587 polymorphism with the susceptibility to rheumatoid arthritis (RA) so far. Therefore, the current meta-analysis was designed to thoroughly review relevant studies, in order to examine the relationship of IL-1A rs1800587 polymorphism with RA risk. Electronic databases were retrieved for literature regarding the relationship between IL-1A rs1800587 polymorphism and RA vulnerability according to the inclusion and exclusion criteria. Stata 12.0 software was adopted to examine the enrolled literature. Meanwhile, odds ratio (OR) and corresponding 95% confidence intervals (95% CI) were used to evaluate the association. A total of seven case-control researches (3267 patients and 2960 healthy controls) were eventually enrolled into the current meta-analysis. Our data indicated no correlation of IL-1A rs1800587 polymorphism with RA risk (TT vs CC: OR = 0.90, 95% CI = 0.73-1.11; TC vs CC: OR = 1.02, 95% CI = 0.78-1.34; Dominant model: OR = 1.04, 95% CI = 0.80-1.35; Recessive model: OR = 1.91, 95% CI = 0.74-1.12). Similarly, no association was found in subgroup analysis stratified by ethnicity. Our findings indicated no relationship between IL-1A rs1800587 polymorphism and RA vulnerability.
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Affiliation(s)
- Huaguo Wang
- Department of Clinical Laboratory, Ruian Traditional Chinese Medicine Hospital, Ruian, China
| | - Yi Wang
- Department of Clinical Laboratory, Wenzhou integrated traditional Chinese and Western Medicine Hospital, Wenzhou, China
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Kang JA, Kwak JS, Park SH, Sim KY, Kim SK, Shin Y, Jung IJ, Yang JI, Chun JS, Park SG. ZIP8 exacerbates collagen-induced arthritis by increasing pathogenic T cell responses. Exp Mol Med 2021; 53:560-571. [PMID: 33795795 PMCID: PMC8102558 DOI: 10.1038/s12276-021-00591-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/20/2020] [Accepted: 01/08/2021] [Indexed: 02/01/2023] Open
Abstract
Zinc is a trace element that is essential for immune responses. Therefore, changes in cellular zinc levels in specific immune cells may influence inflammatory autoimmune diseases, such as rheumatoid arthritis (RA). However, the regulation of zinc mobilization in immune cells and its role in the pathogenesis of RA are not fully understood. Thus, we investigated the roles of zinc transporters in RA pathogenesis. We demonstrated that ZIP8 was specifically upregulated in CD4+ T cells that infiltrated the inflamed joint and that ZIP8 deficiency in CD4+ T cells abrogated collagen-induced arthritis. ZIP8 deficiency dramatically affected zinc influx in effector T cells and profoundly reduced T cell receptor (TCR)-mediated signaling, including NF-κB and MAPK signaling, which are pathways that are involved in T helper (Th) 17 cell differentiation. Taken together, our findings suggest that ZIP8 depletion in CD4+ T cells attenuates TCR signaling due to insufficient cellular zinc, thereby reducing the function of effector CD4+ T cells, including Th17 cells. Our results also suggest that targeting ZIP8 may be a useful strategy to inhibit RA development and pathogenesis.
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Affiliation(s)
- Jung-Ah Kang
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- Infectious Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Ji-Sun Kwak
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Sang-Heon Park
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyu-Young Sim
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seul Ki Kim
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Youngnim Shin
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - In Jung Jung
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Jeong-In Yang
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Jang-Soo Chun
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
- Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
- National Creative Research Initiatives Center for Osteoarthritis Pathogenesis, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
| | - Sung-Gyoo Park
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
- Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea.
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Selman M, Pardo A. When things go wrong: exploring possible mechanisms driving the progressive fibrosis phenotype in interstitial lung diseases. Eur Respir J 2021; 58:13993003.04507-2020. [PMID: 33542060 DOI: 10.1183/13993003.04507-2020] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/27/2021] [Indexed: 02/06/2023]
Abstract
Interstitial lung diseases (ILDs) comprise a large and heterogeneous group of disorders of known and unknown aetiology characterised by diffuse damage of the lung parenchyma. In recent years it has become evident that patients with different types of ILD are at risk of developing progressive pulmonary fibrosis, known as progressive fibrosing ILD (PF-ILD). This is a phenotype that behaves similar to idiopathic pulmonary fibrosis, the archetypical example of progressive fibrosis. PF-ILD is not a distinct clinical entity but describes a group of ILDs with similar clinical behaviour. This phenotype may occur in diseases displaying distinct aetiologies and different biopathology during their initiation and development. Importantly, these entities may have the potential for improvement or stabilisation prior to entering the progressive fibrosing phase. The crucial questions are: 1) why does a subset of patients develop a progressive and irreversible fibrotic phenotype even with appropriate treatment? and 2) what are the possible pathogenic mechanisms driving progression? Here, we provide a framework highlighting putative mechanisms underlying progression, including genetic susceptibility, ageing, epigenetics, structural fibrotic distortion, aberrant composition and stiffness of the extracellular matrix, and the emergence of distinct pro-fibrotic cell subsets. Understanding the cellular and molecular mechanisms behind PF-ILD will provide the basis for identifying risk factors and appropriate therapeutic strategies.
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Affiliation(s)
- Moisés Selman
- Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico
| | - Annie Pardo
- Facultad de Ciencias, Universidad Nacional Autónoma de Mexico, Mexico City, Mexico
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Mousavi MJ, Karami J, Aslani S, Tahmasebi MN, Vaziri AS, Jamshidi A, Farhadi E, Mahmoudi M. Transformation of fibroblast-like synoviocytes in rheumatoid arthritis; from a friend to foe. AUTO- IMMUNITY HIGHLIGHTS 2021; 12:3. [PMID: 33546769 PMCID: PMC7863458 DOI: 10.1186/s13317-020-00145-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/20/2020] [Indexed: 02/07/2023]
Abstract
Swelling and the progressive destruction of articular cartilage are major characteristics of rheumatoid arthritis (RA), a systemic autoimmune disease that directly affects the synovial joints and often causes severe disability in the affected positions. Recent studies have shown that type B synoviocytes, which are also called fibroblast-like synoviocytes (FLSs), as the most commonly and chiefly resident cells, play a crucial role in early-onset and disease progression by producing various mediators. During the pathogenesis of RA, the FLSs' phenotype is altered, and represent invasive behavior similar to that observed in tumor conditions. Modified and stressful microenvironment by FLSs leads to the recruitment of other immune cells and, eventually, pannus formation. The origins of this cancerous phenotype stem fundamentally from the significant metabolic changes in glucose, lipids, and oxygen metabolism pathways. Moreover, the genetic abnormalities and epigenetic alterations have recently been implicated in cancer-like behaviors of RA FLSs. In this review, we will focus on the mechanisms underlying the transformation of FLSs to a cancer-like phenotype during RA. A comprehensive understanding of these mechanisms may lead to devising more effective and targeted treatment strategies.
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Affiliation(s)
- Mohammad Javad Mousavi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Department of Hematology, Faculty of Allied Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Jafar Karami
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Department of Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Saeed Aslani
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Arash Sharafat Vaziri
- Joint Reconstruction Reseach Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmadreza Jamshidi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Elham Farhadi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
- Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mahdi Mahmoudi
- Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
- Inflammation Research Center, Tehran University of Medical Sciences, Tehran, Iran.
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Zhi L, Liang J, Huang W, Ma J, Qing Z, Wang X. Circ_AFF2 facilitates proliferation and inflammatory response of fibroblast-like synoviocytes in rheumatoid arthritis via the miR-375/TAB2 axis. Exp Mol Pathol 2021; 119:104617. [PMID: 33535081 DOI: 10.1016/j.yexmp.2021.104617] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 12/10/2020] [Accepted: 01/26/2021] [Indexed: 02/07/2023]
Abstract
Circular RNAs (circRNAs) have been implicated in the pathological regulation of human diseases by acting as microRNA (miRNA) sponges to affect gene expression. CircRNA Fragile Mental Retardation 2 (circ_AFF2) was dysregulated in rheumatoid arthritis (RA), but little is known about its specific function and hidden molecular mechanism in RA. Circ_AFF2, miR-375 and TAK1-binding 2 (TAB2) expression levels were determined through the quantitative real-time polymerase chain reaction (qRT-PCR). Flow cytometry was performed to analyze cell cycle and apoptosis. Cell proliferation detection was conducted by 3-(4, 5-dimethylthiazol-2-y1)-2, 5-diphenyl tetrazolium bromide (MTT) assay. The protein levels were measured using western blot. Inflammatory response was evaluated by enzyme-linked immunosorbent assay (ELISA). RNA pull-down assay was used to select the miRNA target of circ_AFF2. The interaction between miR-375 and circ_AFF2 or TAB2 was analyzed using the dual-luciferase reporter assay. Contrasted to normal samples and fibroblast-like synoviocytes (FLS), circ_AFF2 expression was upregulated in RA blood samples and FLS-RA cells. Cell cycle, proliferation and inflammatory response were blocked while apoptosis was promoted in FLS-RA after the downregulation of circ_AFF2. In addition, circ_AFF2 could interact with miR-375 and the function of circ_AFF2 was achieved by sponging miR-375 in FLS-RA cells. Moreover, TAB2 was a target of miR-375 and miR-375 repressed RA progression by decreasing TAB2 expression in FLS-RA cells. More importantly, circ_AFF2 promoted the expression of TAB2 by targeting miR-375. These findings clarified that circ_AFF2 induced cell progression, inflammatory response in FLS-RA cells via the miR-375/TAB2 axis. Circ_AFF2 could be used as a biomarker in the diagnosis and treatment of RA.
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Affiliation(s)
- Liqiang Zhi
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jingqi Liang
- Department of Foot and Ankle Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wei Huang
- Department of Orthopaedics Trauma, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jianbing Ma
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhong Qing
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xi Wang
- Department of Joint Surgery, Xi'an Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Wang W, Chen Q, Wang J, Li T, Song G, Tao K, Liu J, Wu Z. The level of thymic stromal lymphopoietin and its gene polymorphism are associated with rheumatoid arthritis. Immunobiology 2021; 226:152055. [PMID: 33535091 DOI: 10.1016/j.imbio.2021.152055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/17/2020] [Accepted: 01/11/2021] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To study the correlation between TSLP gene SNPs and RA in a Han Chinese population. METHODS The genotypes of TSLP genes rs11466749, rs11466750 and rs10073816 among 197 RA patients and 197 controls were analysed by direct sequencing. ELISA was used to detect the plasma TSLP level. Logistic regression analysis was also conducted to identify risk factors for RA. RESULTS The rs11466749 locus GG genotype (OR = 5.30, 95% CI: 1.76-15.95, P < 0.01), dominant model (OR = 1.68, 95% CI: 1.03-2.73, P = 0.04), recessive model (OR = 5.15, 95% CI: 1.72-15.43, P < 0.01), and G allele (OR = 2.02, 95% CI: 1.33-3.09, P < 0.01) were associated with an increased risk of RA. The rs1073816 locus AA genotype (OR = 4.58, 95% CI: 1.49-14.01, P < 0.01), dominant model (OR = 1.75, 95% CI: 1.09-2.79, P = 0.03), recessive model (OR = 4.27, 95% CI: 1.40-13.00, P = 0.03) and A allele (OR = 1.94, 95% CI: 1.29-2.91, P < 0.01) were associated with an increased risk of RA. The rs1073816 locus GA genotype (OR = 0.29, 95% CI: 0.18-0.45, P < 0.01), dominant model (OR = 0.32, 95% CI: 0.21-0.49, P < 0.01) and A allele (OR = 0.45, 95% CI: 0.32-0.63, P < 0.01) were related to a decreased risk of RA susceptibility. The rs1466749 locus GG genotype, rs11466750 AA genotype, and rs10073816 GG genotype were independent risk factors for RA (P < 0.05). The AUC of plasma TSLP level in the diagnosis of RA was 0.8661 (95% CI: 0.8301-0.9002, P < 0.001). There were statistically significant differences in plasma TSLP levels among subjects with different genotypes at rs11466749, rs11466750, and rs10073816 in the TSLP gene (P < 0.05). CONCLUSION Plasma TSLP levels are a potential molecular marker of RA. SNPs at rs11466749, rs11466750 and rs10073816 of the TSLP gene are related to the susceptibility of the Han Chinese population to RA.
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Affiliation(s)
- Weifeng Wang
- Department of Central Laboratory, Clinical Medicine Scientific and Technical Innovation Park, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200435, China
| | - Qiudan Chen
- Department of Central Laboratory, Clinical Laboratory, Jing'an District Center Hospital of Shanghai, Fudan University, Shanghai 200040, China
| | - Jianguang Wang
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Tianming Li
- School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Guanglei Song
- Department of Central Laboratory, Center of Naval Spectial Medicine, Naval Medical University, Shanghai 200052, China
| | - Kun Tao
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Junjian Liu
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Zhong Wu
- Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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Wu CY, Yang HY, Luo SF, Lai JH. From Rheumatoid Factor to Anti-Citrullinated Protein Antibodies and Anti-Carbamylated Protein Antibodies for Diagnosis and Prognosis Prediction in Patients with Rheumatoid Arthritis. Int J Mol Sci 2021; 22:ijms22020686. [PMID: 33445768 PMCID: PMC7828258 DOI: 10.3390/ijms22020686] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/04/2021] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic systemic inflammatory disease mainly involving synovial inflammation and articular bone destruction. RA is a heterogeneous disease with diverse clinical presentations, prognoses and therapeutic responses. Following the first discovery of rheumatoid factors (RFs) 80 years ago, the identification of both anti-citrullinated protein antibodies (ACPAs) and anti-carbamylated protein antibodies (anti-CarP Abs) has greatly facilitated approaches toward RA, especially in the fields of early diagnosis and prognosis prediction of the disease. Although these antibodies share many common features and can function synergistically to promote disease progression, they differ mechanistically and have unique clinical relevance. Specifically, these three RA associating auto-antibodies (autoAbs) all precede the development of RA by years. However, while the current evidence suggests a synergic effect of RF and ACPA in predicting the development of RA and an erosive phenotype, controversies exist regarding the additive value of anti-CarP Abs. In the present review, we critically summarize the characteristics of these autoantibodies and focus on their distinct clinical applications in the early identification, clinical manifestations and prognosis prediction of RA. With the advancement of treatment options in the era of biologics, we also discuss the relevance of these autoantibodies in association with RA patient response to therapy.
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Affiliation(s)
- Chao-Yi Wu
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 33303, Taiwan;
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
| | - Huang-Yu Yang
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Shue-Fen Luo
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan;
| | - Jenn-Haung Lai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan;
- Graduate Institute of Medical Science, National Defense Medical Center, Taipei 114, Taiwan
- Correspondence: ; Tel.: +886-2-8791-8382; Fax: +886-2-8791-8382
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Ferreira HB, Melo T, Paiva A, Domingues MDR. Insights in the Role of Lipids, Oxidative Stress and Inflammation in Rheumatoid Arthritis Unveiled by New Trends in Lipidomic Investigations. Antioxidants (Basel) 2021; 10:antiox10010045. [PMID: 33401700 PMCID: PMC7824304 DOI: 10.3390/antiox10010045] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is a highly debilitating chronic inflammatory autoimmune disease most prevalent in women. The true etiology of this disease is complex, multifactorial, and is yet to be completely elucidated. However, oxidative stress and lipid peroxidation are associated with the development and pathogenesis of RA. In this case, oxidative damage biomarkers have been found to be significantly higher in RA patients, associated with the oxidation of biomolecules and the stimulation of inflammatory responses. Lipid peroxidation is one of the major consequences of oxidative stress, with the formation of deleterious lipid hydroperoxides and electrophilic reactive lipid species. Additionally, changes in the lipoprotein profile seem to be common in RA, contributing to cardiovascular diseases and a chronic inflammatory environment. Nevertheless, changes in the lipid profile at a molecular level in RA are still poorly understood. Therefore, the goal of this review was to gather all the information regarding lipid alterations in RA analyzed by mass spectrometry. Studies on the variation of lipid profile in RA using lipidomics showed that fatty acid and phospholipid metabolisms, especially in phosphatidylcholine and phosphatidylethanolamine, are affected in this disease. These promising results could lead to the discovery of new diagnostic lipid biomarkers for early diagnosis of RA and targets for personalized medicine.
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Affiliation(s)
- Helena Beatriz Ferreira
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Tânia Melo
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (T.M.); (M.d.R.D.); Tel.: +351-234-370-698 (M.d.R.D.)
| | - Artur Paiva
- Unidade de Gestão Operacional em Citometria, Centro Hospitalar e Universitário de Coimbra (CHUC), 3004-561 Coimbra, Portugal;
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-370 Coimbra, Portugal
- Instituto Politécnico de Coimbra, ESTESC-Coimbra Health School, Ciências Biomédicas Laboratoriais, 3046-854 Coimbra, Portugal
| | - Maria do Rosário Domingues
- Mass Spectrometry Center & QOPNA/LAQV-REQUIMTE, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (T.M.); (M.d.R.D.); Tel.: +351-234-370-698 (M.d.R.D.)
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Bilal M, Qindeel M, Nunes LV, Duarte MTS, Ferreira LFR, Soriano RN, Iqbal HMN. Marine-Derived Biologically Active Compounds for the Potential Treatment of Rheumatoid Arthritis. Mar Drugs 2020; 19:10. [PMID: 33383638 PMCID: PMC7823916 DOI: 10.3390/md19010010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/05/2020] [Accepted: 12/10/2020] [Indexed: 02/05/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease with a prevalence rate of up to 1% and is significantly considered a common worldwide public health concern. Commercially, several traditional formulations are available to treat RA to some extent. However, these synthetic compounds exert toxicity and considerable side effects even at lower therapeutic concentrations. Considering the above-mentioned critiques, research is underway around the world in finding and exploiting potential alternatives. For instance, marine-derived biologically active compounds have gained much interest and are thus being extensively utilized to confront the confines of in practice counterparts, which have become ineffective for 21st-century medical settings. The utilization of naturally available bioactive compounds and their derivatives can minimize these synthetic compounds' problems to treat RA. Several marine-derived compounds exhibit anti-inflammatory and antioxidant properties and can be effectively used for therapeutic purposes against RA. The results of several studies ensured that the extraction of biologically active compounds from marine sources could provide a new and safe source for drug development against RA. Finally, current challenges, gaps, and future perspectives have been included in this review.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
| | - Maimoona Qindeel
- Department of Pharmacy, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Leonardo Vieira Nunes
- Department of Medicine, Federal University of Juiz de Fora, Juiz de Fora-MG 36036-900, Brazil;
| | | | - Luiz Fernando Romanholo Ferreira
- Graduate Program in Process Engineering, Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju-Sergipe 49032-490, Brazil;
- Institute of Technology and Research (ITP), Tiradentes University (UNIT), Av. Murilo Dantas, 300, Farolândia, Aracaju-Sergipe 49032-490, Brazil
| | - Renato Nery Soriano
- Division of Physiology and Biophysics, Department of Basic Life Sciences, Federal University of Juiz de Fora, Governador Valadares-MG 35010-180, Brazil;
| | - Hafiz M. N. Iqbal
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, Mexico
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Aghakhani S, Zerrouk N, Niarakis A. Metabolic Reprogramming of Fibroblasts as Therapeutic Target in Rheumatoid Arthritis and Cancer: Deciphering Key Mechanisms Using Computational Systems Biology Approaches. Cancers (Basel) 2020; 13:E35. [PMID: 33374292 PMCID: PMC7795338 DOI: 10.3390/cancers13010035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 12/29/2022] Open
Abstract
Fibroblasts, the most abundant cells in the connective tissue, are key modulators of the extracellular matrix (ECM) composition. These spindle-shaped cells are capable of synthesizing various extracellular matrix proteins and collagen. They also provide the structural framework (stroma) for tissues and play a pivotal role in the wound healing process. While they are maintainers of the ECM turnover and regulate several physiological processes, they can also undergo transformations responding to certain stimuli and display aggressive phenotypes that contribute to disease pathophysiology. In this review, we focus on the metabolic pathways of glucose and highlight metabolic reprogramming as a critical event that contributes to the transition of fibroblasts from quiescent to activated and aggressive cells. We also cover the emerging evidence that allows us to draw parallels between fibroblasts in autoimmune disorders and more specifically in rheumatoid arthritis and cancer. We link the metabolic changes of fibroblasts to the toxic environment created by the disease condition and discuss how targeting of metabolic reprogramming could be employed in the treatment of such diseases. Lastly, we discuss Systems Biology approaches, and more specifically, computational modeling, as a means to elucidate pathogenetic mechanisms and accelerate the identification of novel therapeutic targets.
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Affiliation(s)
- Sahar Aghakhani
- GenHotel, University of Evry, University of Paris-Saclay, Genopole, 91000 Evry, France; (S.A.); (N.Z.)
- Lifeware Group, Inria Saclay, 91120 Palaiseau, France
| | - Naouel Zerrouk
- GenHotel, University of Evry, University of Paris-Saclay, Genopole, 91000 Evry, France; (S.A.); (N.Z.)
| | - Anna Niarakis
- GenHotel, University of Evry, University of Paris-Saclay, Genopole, 91000 Evry, France; (S.A.); (N.Z.)
- Lifeware Group, Inria Saclay, 91120 Palaiseau, France
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Wang M, Zhou Y, Huang W, Zeng Y, Li X. Association between matrix metalloproteinase-1 (MMP-1) protein level and the risk of rheumatoid arthritis and osteoarthritis: a meta-analysis. Braz J Med Biol Res 2020; 54:e10366. [PMID: 33331536 PMCID: PMC7727110 DOI: 10.1590/1414-431x202010366] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/26/2020] [Indexed: 12/22/2022] Open
Abstract
Recent publications have investigated the potential role of the protein level of matrix metalloproteinase-1 (MMP-1) in the susceptibility to rheumatoid arthritis (RA) and osteoarthritis (OA). However, no unanimous conclusion was obtained. Therefore, we carried out a meta-analysis to explore the association between MMP-1 expression and these two clinical disorders. After database searching and screening, we enrolled a total of eighteen articles for the pooled analysis. We observed a significant association between RA cases and controls in the whole population [SMD (standard mean difference)=1.01, P=0.017]. There were similar positive results in the subgroup analysis of “population-based control” (SMD=1.50, P=0.032) and “synovial fluid” (SMD=1.32, P=0.049). In addition, we observed an increased risk in OA cases, compared with controls, in the overall analysis (SMD=0.47, P=0.004) and subsequent subgroup analysis of “knee OA” (SMD=0.86, P<0.001), “Asian/China” (SMD=0.76, P=0.003), “cartilage-Asian/China” (SMD=1.21, P<0.001), and “synovial fluid-Asian/China” (SMD=0.73, P=0.004). In summary, a high protein level of MMP-1 in synovial fluid may be associated with the susceptibility to RA, and the high MMP-1 level in the cartilage tissue or synovial fluid may be related to the pathogenesis of knee OA in the Chinese population. This should be confirmed by larger sample sizes.
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Affiliation(s)
- Maopeng Wang
- Department of Orthopedics, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
| | - You Zhou
- Department of Orthopedics, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Wei Huang
- Department of Orthopedics, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Yong Zeng
- Department of Orthopedics, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
| | - Xinzhi Li
- Department of Orthopedics, Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei, China
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Barinotti A, Radin M, Cecchi I, Foddai SG, Rubini E, Roccatello D, Sciascia S, Menegatti E. Genetic Factors in Antiphospholipid Syndrome: Preliminary Experience with Whole Exome Sequencing. Int J Mol Sci 2020; 21:E9551. [PMID: 33333988 PMCID: PMC7765384 DOI: 10.3390/ijms21249551] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/11/2020] [Accepted: 12/13/2020] [Indexed: 12/18/2022] Open
Abstract
As in many autoimmune diseases, the pathogenesis of the antiphospholipid syndrome (APS) is the result of a complex interplay between predisposing genes and triggering environmental factors, leading to a loss of self-tolerance and immune-mediated tissue damage. While the first genetic studies in APS focused primarily on the human leukocytes antigen system (HLA) region, more recent data highlighted the role of other genes in APS susceptibility, including those involved in the immune response and in the hemostatic process. In order to join this intriguing debate, we analyzed the single-nucleotide polymorphisms (SNPs) derived from the whole exome sequencing (WES) of two siblings affected by APS and compared our findings with the available literature. We identified genes encoding proteins involved in the hemostatic process, the immune response, and the phospholipid metabolism (PLA2G6, HSPG2, BCL3, ZFAT, ATP2B2, CRTC3, and ADCY3) of potential interest when debating the pathogenesis of the syndrome. The study of the selected SNPs in a larger cohort of APS patients and the integration of WES results with the network-based approaches will help decipher the genetic risk factors involved in the diverse clinical features of APS.
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Affiliation(s)
- Alice Barinotti
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10125 Turin, Italy
| | - Massimo Radin
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
| | - Irene Cecchi
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
| | - Silvia Grazietta Foddai
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10125 Turin, Italy
| | - Elena Rubini
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
| | - Dario Roccatello
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
- Nephrology and Dialysis, Department of Clinical and Biological Sciences, S. Giovanni Bosco Hospital and University of Turin, 10154 Turin, Italy
| | - Savino Sciascia
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
- Nephrology and Dialysis, Department of Clinical and Biological Sciences, S. Giovanni Bosco Hospital and University of Turin, 10154 Turin, Italy
| | - Elisa Menegatti
- Center of Research of Immunopathology and Rare Diseases—Coordinating Center of Piemonte and Aosta Valley Network for Rare Diseases, S. Giovanni Bosco Hospital, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy; (A.B.); (M.R.); (I.C.); (S.G.F.); (E.R.); (D.R.); (E.M.)
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10125 Turin, Italy
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Castro-Santos P, Olloquequi J, Verdugo RA, Gutiérrez MA, Pinochet C, Quiñones LA, Díaz-Peña R. HLA-DRB1*07:01 and * 08:02 Alleles Confer a Protective Effect Against ACPA-Positive Rheumatoid Arthritis in a Latin American Admixed Population. BIOLOGY 2020; 9:biology9120467. [PMID: 33327594 PMCID: PMC7765073 DOI: 10.3390/biology9120467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/11/2020] [Accepted: 12/13/2020] [Indexed: 06/12/2023]
Abstract
HLA-DRB1 shared epitope (SE) alleles are important genetic contributors for the risk of developing anti-citrullinated protein antibodies (ACPA)-positive rheumatoid arthritis (RA), particularly in Caucasians. We aimed to analyze the contribution of HLA-DRB1 alleles and single nucleotide polymorphisms (SNPs) within the major histocompatibility complex (MHC) region to the susceptibility to develop ACPA-positive RA in a Latin American (LA) population with admixed ancestry. A total of 289 ACPA-positive RA patients and 510 controls were enrolled in this study. The presence of HLA-DRB1*04:01, *09:01 and *10:01 was increased in ACPA-positive RA patients compared with healthy controls (p < 0.0001, p < 0.001 and p < 0.01, respectively), whereas DRB1*07:01 and *08:02 was associated with a decreased risk of ACPA-positive RA (p < 0.001 and p < 0.01, respectively). These results showed a strong correlation with estimates from studies in Asians but not in Caucasian populations. The present study describes the protective effects of the HLA-DRB1*07:01 and *08:02 alleles in ACPA-positive RA patients in a LA population for the first time. Identifying relationships between HLA-DRB1 alleles and RA is important for identifying disease associations in different ethnic groups in order to reach a better understanding of RA worldwide.
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Affiliation(s)
- Patricia Castro-Santos
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 3460000, Chile; (P.C.-S.); (J.O.)
- Inmunología, Centro de Investigaciones Biomédicas (CINBIO), Universidad de Vigo, 36310 Vigo, Spain
| | - Jordi Olloquequi
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 3460000, Chile; (P.C.-S.); (J.O.)
| | - Ricardo A. Verdugo
- Programa de Genética Humana, ICBM, Facultad de Medicina, Universidad de Chile, Santiago 8389100, Chile;
- Departamento de Oncología Básico-Clínico, Facultad de Medicina, Universidad de Chile, Santiago 8389100, Chile
| | - Miguel A. Gutiérrez
- Rheumatology, Almirante Nef Naval Hospital, Viña del Mar, Valparaíso 2340000, Chile;
- School of Medicine, Valparaíso University, Valparaíso 2340000, Chile
| | | | - Luis A. Quiñones
- Laboratory of Chemical Carcinogenesis and Pharmacogenetics, Department of Basic-Clinical Oncology, Faculty of Medicine, University of Chile, Santiago 8320000, Chile
- Latin American Network for Implementation and Validation of Clinical Pharmacogenomics Guidelines (RELIVAF-CYTED), 28015 Madrid, Spain
| | - Roberto Díaz-Peña
- Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Talca 3460000, Chile; (P.C.-S.); (J.O.)
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Dai X, Yang D, Bao J, Zhang Q, Ding J, Liu M, Ding M, Liu M, Liang J, Jia X. Er Miao San, a traditional Chinese herbal formula, attenuates complete Freund's adjuvant-induced arthritis in rats by regulating Th17/Treg cells. PHARMACEUTICAL BIOLOGY 2020; 58:157-164. [PMID: 32037930 PMCID: PMC7034067 DOI: 10.1080/13880209.2020.1720745] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Context: Er Miao San (EMS) is a traditional Chinese medicine composed of Atractylodis Rhizoma and Phellodendri Cortex in a 1:1 weight ratio. EMS has been used to treat rheumatism in China for many years.Objective: To evaluate the anti-arthritic activity of EMS extract on adjuvant-induced arthritis (AA) in Sprague-Dawley rats and to clarify its mechanisms of action.Materials and methods: EMS (0.75, 1.5 and 3 g/kg, once daily) was orally administered from day 18 after immunization to day 31. The effects of EMS on AA rats were evaluated by histopathological examination, paw swelling and polyarthritis index. The proliferation of fibroblast-like synoviocyte (FLS) and T cells was detected by CCK-8. The percentages of Th17 cells and Treg cells in splenocytes were determined by flow cytometry. Levels of cytokines in serum were detected by ELISA.Results: EMS treatment significantly decreased the paw volume (from 1.20 to 0.81), polyarthritis index (from 9.56 to 4.46) and alleviated ankle joint histopathology in AA rats. EMS inhibited the proliferation of FLS and T cells. Furthermore, EMS treatment decreased Th17 cells (from 4.62 to 2.08%) and increased Treg cells (from 2.77 to 4.75%) in splenocytes. The levels of IL-17A, TNF-α and IL-6 were remarkably decreased in the serum of EMS-treated rats, whereas the levels of IL-10 and TGF-β1 were significantly increased.Conclusions: EMS exhibits anti-arthritic activity in the AA model by regulating the balance of cytokines and the ratio of Th17 and Treg cells. These insights may provide an experimental basis for the clinical treatment of RA.
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Affiliation(s)
- Xing Dai
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- The First Clinical Medical College, Anhui Medical University, Hefei, China
| | - Dongping Yang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Jinping Bao
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Qiying Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Jiemin Ding
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Min Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Meihuizi Ding
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Mengli Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Juan Liang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Xiaoyi Jia
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- CONTACT Xiaoyi Jia School of Pharmacy, Anhui University of Chinese Medicine, Hefei230012, China
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93
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Wang W, Hu W, Xue S, Chen Q, Jiang Y, Zhang H, Zuo W. Vitamin D and Lung Cancer; Association, Prevention, and Treatment. Nutr Cancer 2020; 73:2188-2200. [PMID: 33225744 DOI: 10.1080/01635581.2020.1844245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Lung cancer is one of the common types of malignant disorders and the most prevalent cause of cancer-related mortality in the world. Although a wide range of approaches has been examined, strategies in prevention and treatment of lung cancer are still inadequate. Studies show that Vitamin D (VitD) is involved in various biological pathways and has been associated with the etiopathogenesis of several diseases, like cancers. In Vitro and In Vivo experiments have disclosed that VitD plays immunomodulatory and anti-tumor functions. Several lines of evidence have indicated that VitD is involved in the inflammatory settings of the lung. Epidemiological studies have reported that sufficient levels of VitD might be critical in the prevention of lung cancer. Polymorphisms in the genes encoding the different molecules involved in the signaling of VitD might affect the lung cancer risk as well as the quality and quantity of responses to different treatments. In this review article, we intended to clarify the implications of VitD in the normal biology and physiology of the lung and discuss diverse line of evidence about the possible role of VitD in the prevention or treatment of lung cancer.
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Affiliation(s)
- Weijie Wang
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
| | - Wentao Hu
- Department of Thoracic Surgery, Ningbo First Hospital, Ningbo, P.R. China
| | - Shihang Xue
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
| | - Qi Chen
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
| | - Yongsheng Jiang
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
| | - Haina Zhang
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
| | - Wei Zuo
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, P.R. China
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Masoumi M, Bashiri H, Khorramdelazad H, Barzaman K, Hashemi N, Sereshki HA, Sahebkar A, Karami J. Destructive Roles of Fibroblast-like Synoviocytes in Chronic Inflammation and Joint Damage in Rheumatoid Arthritis. Inflammation 2020; 44:466-479. [PMID: 33113036 DOI: 10.1007/s10753-020-01371-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/06/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022]
Abstract
Fibroblast-like synoviocytes (FLSs) are important non-immune cells located mostly in the inner layer of the synovium. Indeed, these cells are specialized mesenchymal cells, implicated in collagen homeostasis of the articular joint and provide extracellular matrix (ECM) materials for cartilage and contribute to joint destruction via multiple mechanisms. RA FLS interactions with immune and non-immune cells lead to the development and organization of tertiary structures such as ectopic lymphoid-like structures (ELSs), tertiary lymphoid organs (TLOs), and secretion of proinflammatory cytokines. The interaction of RA FLS cells with immune and non-immune cells leads to stimulation and activation of effector immune cells. Pathological role of RA FLS cells has been reported for many years, while molecular and cellular mechanisms are not completely understood yet. In this review, we tried to summarize the latest findings about the role of FLS cells in ELS formation, joint destruction, interactions with immune and non-immune cells, as well as potential therapeutic options in rheumatoid arthritis (RA) treatment. Our study revealed data about interactions between RA FLS and immune/non-immune cells as well as the role of RA FLS cells in joint damage, ELS formation, and neoangiogenesis, which provide useful information for developing new approaches for RA treatment.
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Affiliation(s)
- Maryam Masoumi
- Clinical Research Development Center, Shahid Beheshti Hospital, Qom University of Medical Sciences, Qom, Iran
| | - Hamidreza Bashiri
- Department of Rheumatology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Khorramdelazad
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Molecular Medicine Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.,Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Khadijeh Barzaman
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Nader Hashemi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hale Abdoli Sereshki
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran. .,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. .,Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland.
| | - Jafar Karami
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. .,Department of Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran.
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Marrelli M, Amodeo V, Perri MR, Conforti F, Statti G. Essential Oils and Bioactive Components against Arthritis: A Novel Perspective on Their Therapeutic Potential. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9101252. [PMID: 32977657 PMCID: PMC7598204 DOI: 10.3390/plants9101252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 05/03/2023]
Abstract
Essential oils (EOs) are known to possess a number of beneficial properties. Their antimicrobial, anti-inflammatory, antioxidant, antidiabetic, and cancer-preventing activities have been extensively reported. Due to their wide use as food preservers and additives, as well as their use in agriculture, perfumes, and make-up products, these complex mixtures of volatile compounds have gained importance from a commercial point of view, not only in the pharmaceutical industry, but also in agronomic, food, cosmetic, and perfume industries. An analysis of the recent scientific literature allowed us to highlight the presence of an increasing number of studies on the potential antiarthritic properties of EOs and their main constituents, which seems to suggest a new interesting potential therapeutic application. The aim of this review is to examine the current knowledge on the beneficial effects of essential oils in the treatment of arthritic diseases, providing an overview of the reports on the in vivo and in vitro effects of EOs. Furthermore, this review critically examines the recent findings on the potential roles of the main components of EOs in the exerted beneficial effects. Obtained negative results are also reported.
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96
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Role of Infections in the Pathogenesis of Rheumatoid Arthritis: Focus on Mycobacteria. Microorganisms 2020; 8:microorganisms8101459. [PMID: 32977590 PMCID: PMC7598258 DOI: 10.3390/microorganisms8101459] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 12/16/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic inflammatory autoimmune disease characterized by chronic erosive polyarthritis. A complex interaction between a favorable genetic background, and the presence of a specific immune response against a broad-spectrum of environmental factors seems to play a role in determining susceptibility to RA. Among different pathogens, mycobacteria (including Mycobacterium avium subspecies paratuberculosis, MAP), and Epstein–Barr virus (EBV), have extensively been proposed to promote specific cellular and humoral response in susceptible individuals, by activating pathways linked to RA development. In this review, we discuss the available experimental and clinical evidence on the interplay between mycobacterial and EBV infections, and the development of the immune dysregulation in RA.
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97
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Association study of CCR6 rs3093024 with Rheumatoid Arthritis in a Pakistani cohort. Saudi J Biol Sci 2020; 27:3354-3358. [PMID: 33304142 PMCID: PMC7715036 DOI: 10.1016/j.sjbs.2020.08.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/24/2020] [Accepted: 08/30/2020] [Indexed: 12/20/2022] Open
Abstract
C-C Chemokine receptor 6 (CCR6), an important protein in inflammatory and immunological responses, has been previously reported to be associated with rheumatoid arthritis (RA). Therefore, in order to replicate these findings, a case-control study was conducted on 500 subjects (including 250 RA patients and 250 healthy controls) of Pakistani origin. The aim of this study was to determine the association of CCR6 rs3093024 variant with RA and identify its role in splicing events using bioinformatics tools. The clinical and demographic characteristics of the patients were collected using a well-designed questionnaire. The genotype frequencies of CCR6 rs3093024 variant were determined using tetra-primer ARMS-PCR (amplification of refractory mutation system-polymerase chain reaction) method. A significant difference was found between CCR6 rs3093024 genotype frequencies [P = 0.0016, χ2 = 12.915]. Similarly, a significant difference in the allele frequencies between RA patients and healthy controls was also observed [P = 0.0003 and OR (95% CI) = 0.63 (0.49–0.80)]. The stratification of patients showed that there was a significant increase in AA genotype against AG + GG in patients [P = 0.0014, OR (95% CI) = 2.0 (1.32–3.02)]. Furthermore, using bioinformatics analysis, it was found that CCR6 rs3093024 variant might create a potential splicing enhancer motif (SF2/ASF (IgM-BRCA1) with score of 77.92; Threshold 70.53), which might have important impact on the product of this gene. This study suggests that the A variant of CCR6 rs3093024 variant is significantly associated with RA-risk and its G variant is protective in Pakistani population but a multi-cohort large sized population study is needed to elucidate these results. Moreover, functional studies are needed to highlight the effects of this polymorphism on the function of CCR6 gene.
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98
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Amino Acid Metabolism in Rheumatoid Arthritis: Friend or Foe? Biomolecules 2020; 10:biom10091280. [PMID: 32899743 PMCID: PMC7563518 DOI: 10.3390/biom10091280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023] Open
Abstract
In mammals, amino acid metabolism has evolved to act as a critical regulator of innate and adaptive immune responses. Rheumatoid arthritis (RA) is the most common form of inflammatory arthropathy sustained by autoimmune responses. We examine here the current knowledge of tryptophan and arginine metabolisms and the main immunoregulatory pathways in amino acid catabolism, in both RA patients and experimental models of arthritis. We found that l-tryptophan (Trp) metabolism and, in particular, the kynurenine pathway would exert protective effects in all experimental models and in some, but not all, RA patients, possibly due to single nucleotide polymorphisms in the gene coding for indoleamine 2,3-dioxygenase 1 (IDO1; the enzyme catalyzing the rate-limiting step of the kynurenine pathway). The function, i.e., either protective or pathogenetic, of the l-arginine (Arg) metabolism in RA was less clear. In fact, although immunoregulatory arginase 1 (ARG1) was highly induced at the synovial level in RA patients, its true functional role is still unknown, possibly because of few available preclinical data. Therefore, our analysis would indicate that amino acid metabolism represents a fruitful area of research for new drug targets for a more effective and safe therapy of RA and that further studies are demanding to pursue such an important objective.
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99
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Mo XB, Sun YH, Zhang YH, Lei SF. Integrative analysis highlighted susceptibility genes for rheumatoid arthritis. Int Immunopharmacol 2020; 86:106716. [DOI: 10.1016/j.intimp.2020.106716] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/15/2020] [Accepted: 06/15/2020] [Indexed: 01/06/2023]
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100
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Zhang Q, Liu Q, Lin C, Baima Y, Li H, Gong H, Lin J. The prevalence of rheumatoid arthritis in middle-aged and elderly people living in Naqu City, Tibet, Autonomous Region of China. J Orthop Surg Res 2020; 15:338. [PMID: 32811526 PMCID: PMC7436952 DOI: 10.1186/s13018-020-01883-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/12/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE To estimate the prevalence of rheumatoid arthritis (RA) in the Tibet Autonomous Region (China). METHODS A population-based cross-sectional survey was conducted on 1458 residents of Luoma Town, Tibet Autonomous Region, who were aged ≥ 40 years old. We interviewed participants using questionnaires, and rheumatoid factor (RF), anti-citrullinated protein antibodies (ACPA), and C-reactive protein (CRP) were determined. The identification of RA in this study was on the basis of criteria issued by the 2010 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) guideline. RESULTS Herein, 782 participants completed all items of RA. The overall prevalence of RA was 4.86%, and the prevalence was higher in women than that in men (7.14% vs. 2.56%, p = 0.005). The age-standardized prevalence of RA was 6.30% (95% confidence interval (CI) 4.20-8.64%), which was 2.46% (95% CI 1.04%, 4.10%) and 9.59% (95% CI 5.93%, 13.77%) in men and women, respectively. CONCLUSION The prevalence of RA is relatively higher in the Tibet than that in other areas of China.
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Affiliation(s)
- Qingxi Zhang
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, 11th Xizhimen South Street, Beijing, China
- Arthritis Institute, Peking University, Beijing, China
| | - Qiang Liu
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, 11th Xizhimen South Street, Beijing, China
- Arthritis Institute, Peking University, Beijing, China
| | - Chutong Lin
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, 11th Xizhimen South Street, Beijing, China
- Arthritis Institute, Peking University, Beijing, China
| | - Yangjin Baima
- Department of Rheumatism, Tibet Autonomous Region People's Hospital, Tibet, China
| | - Hu Li
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, 11th Xizhimen South Street, Beijing, China
- Arthritis Institute, Peking University, Beijing, China
| | - Hongqiang Gong
- Tibet Center for Disease Control and Prevention, No. 21, North Linkuo Road, Chengguan District, Lhasa City, 850000, Tibet Autonomous Region Tibet, China.
| | - Jianhao Lin
- Arthritis Clinic & Research Center, Peking University People's Hospital, Peking University, 11th Xizhimen South Street, Beijing, China.
- Arthritis Institute, Peking University, Beijing, China.
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