Abstract:
BACKGROUND:Porphyromonas gingivalis (Pg) infection causes periodontal disease and exacerbates rheumatoid arthritis (RA). It is reported that inoculation of periodontopathogenic bacteria (i.e., Pg) can alter gut microbiota composition in the animal models. Gut microbiota dysbiosis in human has shown strong associations with systemic diseases, including RA, diabetes mellitus, and inflammatory bowel disease. Therefore, this study investigated dysbiosis-mediated arthritis by Pg oral inoculation in an experimental arthritis model mouse. METHODS:Pg inoculation in the oral cavity twice a week for 6 weeks was performed to induce periodontitis in SKG mice. Concomitantly, a single intraperitoneal (i.p.) injection of laminarin (LA) was administered to induce experimental arthritis (Pg-LA mouse). Citrullinated protein (CP) and IL-6 levels in serum as well as periodontal, intestinal, and joint tissues were measured by ELISA. Gut microbiota composition was determined by pyrosequencing the 16 s ribosomal RNA genes after DNA purification of mouse feces. Fecal microbiota transplantation (FMT) was performed by transferring Pg-LA-derived feces to normal SKG mice. The effects of Pg peptidylarginine deiminase (PgPAD) on the level of citrullinated proteins and arthritis progression were determined using a PgPAD knockout mutant. RESULTS:Periodontal alveolar bone loss and IL-6 in gingival tissue were induced by Pg oral infection, as well as severe joint destruction, increased arthritis scores (AS), and both IL-6 and CP productions in serum, joint, and intestinal tissues. Distribution of Deferribacteres and S24-7 was decreased, while CP was significantly increased in gingiva, joint, and intestinal tissues of Pg-inoculated experimental arthritis mice compared to experimental arthritis mice without Pg inoculation. Further, FMT from Pg-inoculated experimental arthritis mice reproduced donor gut microbiota and resulted in severe joint destruction with increased IL-6 and CP production in joint and intestinal tissues. The average AS of FMT from Pg-inoculated experimental arthritis was much higher than that of donor mouse. However, inoculation of the PgPAD knockout mutant inhibited the elevation of arthritis scores and ACPA level in serum and reduced CP amount in gingival, joint, and intestinal tissues compared to Pg wild-type inoculation. CONCLUSION:Pg oral infection affected gut microbiota dysbiosis and joint destruction via increased CP generation.
journal_name
Arthritis Res Therjournal_title
Arthritis research & therapyauthors
Hamamoto Y,Ouhara K,Munenaga S,Shoji M,Ozawa T,Hisatsune J,Kado I,Kajiya M,Matsuda S,Kawai T,Mizuno N,Fujita T,Hirata S,Tanimoto K,Nakayama K,Kishi H,Sugiyama E,Kurihara Hdoi
10.1186/s13075-020-02348-zsubject
Has Abstractpub_date
2020-10-19 00:00:00pages
249issue
1eissn
1478-6354issn
1478-6362pii
10.1186/s13075-020-02348-zjournal_volume
22pub_type
杂志文章abstract:INTRODUCTION:The aim of this study was to investigate the effect of three years of tumor necrosis factor-alpha (TNF-α) blocking therapy on bone turnover as well as to analyze the predictive value of early changes in bone turnover markers (BTM) for treatment discontinuation in patients with ankylosing spondylitis (AS). ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3823
更新日期:2012-04-30 00:00:00
abstract:INTRODUCTION:Degeneration of the intervertebral disc (IVD) is characterized by marked degradation and restructuring of the annulus fibrosus (AF). Although several matrix metalloproteinases (MMPs) have been found to be more prevalent in degenerate discs, their coordination and function within the context of the disease ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4224
更新日期:2013-04-27 00:00:00
abstract:INTRODUCTION:We aimed to understand the changes in cartilage lubricin expression and immunolocalisation in responsed to treadmill running with different intensities in a rat model. METHODS:A total of 24 male Wistar rats were randomly assigned into groups of control (CON), low-intensity running (LIR), moderate-intensit...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4101
更新日期:2012-11-24 00:00:00
abstract:BACKGROUND:In previous studies, we demonstrated that the NEMO score, i.e. the cumulative number of microhaemorrhages (MHEs) and microthromboses (MTs), observed in nailfold videocapillaroscopy was a good indicator of the steady state level of disease activity (DA) in patients with systemic sclerosis (SSc) when the Europ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-2032-6
更新日期:2019-11-29 00:00:00
abstract:INTRODUCTION:Primary Sjögren's syndrome (pSS) is a chronic autoimmune disease with complex etiopathogenesis. Despite extensive studies to understand the disease process utilizing human and mouse models, the intersection between these species remains elusive. To address this gap, we utilized a novel systems biology appr...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4081
更新日期:2012-11-01 00:00:00
abstract:INTRODUCTION:The pleiotropic cytokine interleukin-6 (IL-6) plays an important role in the pathogenesis of different diseases, including rheumatoid arthritis (RA). ALX-0061 is a bispecific Nanobody® with a high affinity and potency for IL-6 receptor (IL-6R), combined with an extended half-life by targeting human serum a...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0651-0
更新日期:2015-05-20 00:00:00
abstract:INTRODUCTION:A number of occupational risk factors are discussed in relation to the development and progress of knee joint diseases (for example, working in a kneeling or squatting posture, lifting and carrying heavy weights). Besides the occupational factors, a number of individual risk factors are important. The dist...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3015
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:Sulfur compounds isolated from garlic exert anti-inflammatory properties. We recently isolated thiacremonone, a novel sulfur compound from garlic. Here, we investigated the anti-inflammatory and arthritis properties of thiacremonone through inhibition of NF-kappaB since NF-kappaB is known to be a target mo...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2819
更新日期:2009-01-01 00:00:00
abstract:INTRODUCTION:Prostaglandin D synthase (PGDS) is responsible for the biosynthesis of PGD and J series, which have been shown to exhibit anti-inflammatory and anticatabolic effects. Two isoforms have been identified: hematopoietic- and lipocalin-type PGDS (H-PGDS and L-PGDS, respectively). The aims of this study were to ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2581
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Ankylosing spondylitis (AS) shares many characteristics with inflammatory bowel disease (IBD). Intestinal microbiota most likely plays an important role in the development of IBDs and may also be involved in the pathogenesis of AS. We aimed to define and compare the fecal microbiota composition in patients w...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-2018-4
更新日期:2019-11-27 00:00:00
abstract:BACKGROUND:In this study, we evaluated the impact of obesity and/or overweight on the achievement of minimal disease activity (MDA) in patients with psoriatic arthritis (PsA) and patients with rheumatoid arthritis (RA) receiving an anti-rheumatic treatment. Obesity can be considered a low-grade, chronic systemic inflam...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,meta分析,评审
doi:10.1186/s13075-016-1194-8
更新日期:2016-12-13 00:00:00
abstract:INTRODUCTION:The purpose of this study was to evaluate and compare the serum levels and local expression of resistin in patients with idiopathic inflammatory myopathies to controls, and to determine the relationship between resistin levels, inflammation and disease activity. METHODS:Serum resistin levels were determin...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3836
更新日期:2012-05-11 00:00:00
abstract:INTRODUCTION:We and others have previously shown that antibodies against cyclic citrullinated proteins (anti-CCP) precede the development of rheumatoid arthritis (RA) and in a more recent study we reported that individuals who subsequently developed RA had increased concentrations of several cytokines and chemokines ye...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3237
更新日期:2011-02-03 00:00:00
abstract:INTRODUCTION:The objective was to study the potential genetic contribution of Toll-like receptor (TLR) genes in rheumatoid arthritis (RA). TLRs bind to pathogen-associated molecular patterns, and TLR genes influence both proinflammatory cytokine production and autoimmune responses. Host-pathogen interactions are involv...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2589
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Accumulation of advanced glycation end-products (AGEs) is involved in age-related osteoarthritis (OA). Glyoxalase (Glo)-1 is the main enzyme involved in the removal of AGE precursors, especially carboxymethyl-lysine (CML). We aimed to investigate the expression of several AGEs and Glo-1 in human OA cartilage...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-018-1801-y
更新日期:2019-01-11 00:00:00
abstract:INTRODUCTION:Familial Mediterranean fever (FMF) is a hereditary autoinflammatory disease characterized by recurrent self-limiting fever and serositis that mainly affects Mediterranean populations. Many patients with FMF have been reported in Japan due to increasing recognition of this condition and the availability of ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-014-0439-7
更新日期:2014-09-27 00:00:00
abstract::B lymphocytes play several critical roles in the pathogenesis of rheumatoid arthritis. They are the source of the rheumatoid factors and anticitrullinated protein antibodies, which contribute to immune complex formation and complement activation in the joints. B cells are also very efficient antigen-presenting cells, ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar1010
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Nitric oxide and prostaglandin E2 (PGE2play pivotal roles in both the pathogenesis of osteoarthritis and catabolic processes in articular cartilage. These mediators are influenced by both IL-1beta and mechanical loading, and involve alterations in the inducible nitric oxide synthase (iNOS) and cyclo-oxygenas...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2389
更新日期:2008-01-01 00:00:00
abstract:RESULTS:Anti-CarP antibodies were detected in 117 patients with RA (37.9%), ACPA in 190 patients (61.4%) and RF in 202 patients (65.3%). Two (2.04%) of the NHS were positive for anti-CarP, one NHS (1.02%) was positive for ACPA and three NHS were positive for RF (3.06%). Among disease controls, anti-CarP antibodies were...
journal_title:Arthritis research & therapy
pub_type: 已发布勘误
doi:10.1186/s13075-016-1205-9
更新日期:2016-12-16 00:00:00
abstract:BACKGROUND:Our previous study found that circulating and urinary levels of high mobility group box-1 (HMGB1) were closely associated with disease activity in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). Moreover, HMGB1 participates in ANCA-induced neutrophil activation. Cross-re...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1339-4
更新日期:2017-06-06 00:00:00
abstract:INTRODUCTION:IL-10 is a very important anti-inflammatory cytokine. However, the role of this cytokine in T cells in the pathogenesis of collagen-induced arthritis is unclear. The purpose of this study was to define the role of IL-10 signaling in T cells in the pathogenesis of collagen-induced arthritis. METHODS:IL-10 ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3545
更新日期:2011-01-01 00:00:00
abstract::Pegloticase is a powerful but underutilized weapon in the rheumatologist's armamentarium. The drug's immunogenicity leads to neutralizing antibody formation and rapid loss of efficacy in roughly one-half of all patients, which remains an impediment to broader use. New data, however, suggest that drug survival might im...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar4572
更新日期:2014-05-30 00:00:00
abstract:BACKGROUND:The mechanisms underlying tolerance induction and maintenance in autoimmune arthritis remain elusive. In a mouse model of rheumatoid arthritis, collagen type II (CII)-induced arthritis, we explore the contribution of B cells to antigen-specific tolerance. METHODS:To generate expression of the CII-peptide sp...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-016-1037-7
更新日期:2016-06-14 00:00:00
abstract::The objective of this study was to evaluate the safety and possible efficacy of IFN-beta-1a for the treatment of patients with rheumatoid arthritis (RA). Twenty-two patients with active RA were enrolled in a phase II randomized, double-blind, placebo-controlled trial of 30 microg IFN-beta-1a by weekly self-injection f...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar1026
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Differential diagnosis among psoriatic arthritis (PsA) and seronegative rheumatoid arthritis (Abneg RA) can be challenging particularly in the clinical setting of peripheral phenotype and autoantibodies seronegativity. The aim of the study was to identify synovial tissue (ST) biomarkers differentially expres...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1898-7
更新日期:2019-05-09 00:00:00
abstract:INTRODUCTION:Brain-derived neurotrophic factor (BDNF) was first identified in the intervertebral disc (IVD) when its molecular upregulation was observed in sections of nucleus pulposus cultured under conditions of increased osmolarity. BDNF is now known to be involved in a number of biologic functions, including regula...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2456
更新日期:2008-01-01 00:00:00
abstract::TNF receptor-associated periodic syndrome (TRAPS) is a dominantly inherited disease caused by missense mutations in the TNF receptor 1 (TNFR1) gene. Patients suffer from periodic bouts of severe abdominal pain, localised inflammation, migratory rashes, and fever. More than 40 individual mutations have been identified,...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2197
更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:Studies investigating genetic risk factors for susceptibility to rheumatoid arthritis (RA) studied anti-citrullinated peptide antibody (CCP)-positive RA more frequently than anti-CCP-negative RA. One of the reasons for this is the perception that anti-CCP-negative RA may include patients that fulfilled cri...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3505
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) is a sometimes life-threatening complication in RA patients. SKG mice develop not only arthritis but also an ILD resembling RA-ILD. We previously reported that tofacitinib, a JAK inhibitor, facilitates the expansion of myeloid-derived suppres...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1963-2
更新日期:2019-08-06 00:00:00
abstract:BACKGROUND:Interstitial lung disease (ILD) is the principal cause of death in polymyositis/dermatomyositis (PM/DM). Here we investigated prognostic factors for death and serious infection in PM/DM-ILD using the multicenter database. METHODS:We retrospectively reviewed baseline demographic, clinical and laboratory find...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1506-7
更新日期:2018-01-11 00:00:00