1
|
Cristea D, Trandafir M, Bojinca VC, Ciontea AS, Andrei MM, Popa A, Lixandru BE, Militaru CM, Nascutiu AM, Predeteanu D, Ionescu R, Popescu C, Cotar AI, Popa MI, Spandidos DA, Codita I. Usefulness of complex bacteriological and serological analysis in patients with spondyloarthritis. Exp Ther Med 2019; 17:3465-3476. [PMID: 30988725 PMCID: PMC6447817 DOI: 10.3892/etm.2019.7336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 02/14/2019] [Indexed: 12/17/2022] Open
Abstract
Spondyloarthritis (SpA) is a group of associated chronic systemic inflammatory immune-mediated rheumatic diseases affecting axial and peripheral joints and entheses. The aim of the present study was to identify what parameters are useful to determine in order to better understand the correlation between the disease activity/severity and the microbiological results/immune status against intestinal and/or urogenital pathogens. Microorganisms known to trigger SpA, including Klebsiella spp., Yersinia spp., Salmonella spp., Campylobacter spp. and Chlamydia spp., were analyzed in various specimens (stool, urine, synovial fluid and serum) collected from 27 randomly selected SpA patients and 26 healthy controls using a combined direct and indirect approach relying on conventional culture technique and nucleic acid-based assays together with serological testing by ELISA. Although Escherichia coli derived from phylogroup A prevailed in the gut microflora of the patients and controls, differences were observed regarding the representatives of the other phylogroups with a higher prevalence of E.coli members of phylogenetic group B1 in the stool specimens of patients. Antibodies against the targeted species were detected in SpA patients and controls, and the serological profiles of the former were more diverse and complex. In conclusion, the detection of anti-bacterial antibodies combined with other specific laboratory investigations should be more extensively used to monitor SpA patients in association with their symptoms and in order to determine and administer more effective therapeutics.
Collapse
Affiliation(s)
- Daniela Cristea
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Marius Trandafir
- 'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania.,Department of Internal Medicine and Rheumatology, Hospital Sfanta Maria, Bucharest 011172, Romania
| | - Violeta Claudia Bojinca
- 'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania.,Department of Internal Medicine and Rheumatology, Hospital Sfanta Maria, Bucharest 011172, Romania
| | - Adriana Simona Ciontea
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Melania Mihaela Andrei
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Andrei Popa
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Brandusa Elena Lixandru
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Cornelia Madalina Militaru
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Alexandra Maria Nascutiu
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania.,'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania
| | - Denisa Predeteanu
- Department of Internal Medicine and Rheumatology, Hospital Sfanta Maria, Bucharest 011172, Romania
| | - Ruxandra Ionescu
- 'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania.,Department of Internal Medicine and Rheumatology, Hospital Sfanta Maria, Bucharest 011172, Romania
| | - Claudiu Popescu
- 'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania.,'Dr Ion Stoia' Clinical Center for Rheumatic Diseases, Bucharest 030167, Romania
| | - Ani Ioana Cotar
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania
| | - Mircea Ioan Popa
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania.,'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, Faculty of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Irina Codita
- 'Cantacuzino' National Medico-Military Institute for Research and Development, Bucharest 0050096, Romania.,'Carol Davila' University of Medicine and Pharmacy, Bucharest 050474, Romania
| |
Collapse
|
2
|
Quirke AM, Fisher BAC, Kinloch AJ, Venables PJ. Citrullination of autoantigens: upstream of TNFα in the pathogenesis of rheumatoid arthritis. FEBS Lett 2011; 585:3681-8. [PMID: 21704035 DOI: 10.1016/j.febslet.2011.06.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 06/06/2011] [Accepted: 06/07/2011] [Indexed: 12/23/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterised by synovial inflammation and destruction of joints. Over 20 years ago, tumour necrosis factor alpha (TNFα) was identified as a key player in a cytokine network, whose multifunctional effects could account for both the inflammation and destruction in RA. The remarkable efficacy of TNF inhibitors in the treatment of RA has resulted in extensive research addressing the regulation of TNFα production responsible for this excessive production. The discovery of autoimmunity to citrullinated protein/peptide antigens (ACPA) has led the concept that ACPA may be the essential link between disease susceptibility factors and the production of TNFα, which ultimately accounts for the disease phenotype. In this review we will consider (1) the mechanisms of citrullination, both physiological and pathological, (2) how known genetic and environmental factors could drive this peculiar form of autoimmunity and (3) how the immune response could lead to excessive production of TNFα by the synovial cells and ultimately to the disease phenotype (Fig. 1).
Collapse
Affiliation(s)
- Anne-Marie Quirke
- Kennedy Institute of Rheumatology, Imperial College London, London, UK
| | | | | | | |
Collapse
|