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Hypoxia, which leads to dysfunctional cell metabolism, and complement activation both play central roles in the pathogenesis of rheumatoid arthritis (RA). Recent studies have reported that mice deficient for the complement-inhibitory protein CD59 show enhanced susceptibility to antigen-induced
BACKGROUND
Hypoxia is a feature of the inflamed synovium in rheumatoid arthritis (RA). Intra-articular injection of hyaluronan (HA) may be considered a potential way to treat RA. However, the exact molecular mechanism of HA on decreased cellular responses to hypoxic environment is unclear. The
OBJECTIVE
To investigate the effect of decreased alpha-enolase (ENO1) expression on rheumatoid arthritis fibroblasts-like synoviocytes (RA-FLSs) proliferation in response to hypoxia, and elucidate the possible mechanisms involved.
METHODS
RA-FLSs and osteoarthritis fibroblasts-like synoviocytes
UNASSIGNED
Rheumatoid arthritis (RA) is an auto-immune disease characterized by chronic inflammation of multiple joints. Hypoxia is a constant feature of synovial microenvironment in RA. Fibroblast-like synoviocytes (FLSs), which are potent effector cells in RA. It has been reported that large
The aim of present study was to investigate the effect of chronic intermittent hypobaric hypoxia (CIHH) on collagen-induced arthritis (CIA) in rat. Fifty male adult Sprague-Dawley rats were randomly divided into 5 groups: CIHH pre-treatment group (Pre-T), pre-control group (Pre-C), CIHH
Rheumatoid arthritis (RA) is known to be associated with increased risks of hypoxia-related diseases, whose progresses are critically determined by HIF-1alpha. The authors hypothesized that the hypoxia-related complications of RA are associated with HIF-1alpha deregulation by some factor(s) in RA
OBJECTIVE
To determine the relationship between hypoxia and the expression of Ets-1 and hypoxia-inducible factor 1alpha (HIF-1alpha) in both normal and inflamed joints. Adjuvant-induced arthritis (AIA) was used as the model system, since it mirrors many aspects of the pathology of rheumatoid
BACKGROUND
Rheumatoid arthritis (RA) is characterised by invasion of cartilage, bone and tendon by inflamed synovium. Previous studies in our laboratory have shown that hypoxia is a feature of RA synovitis. In the present study, we investigated the consequences of hypoxia on angiogenesis and
Rheumatoid arthritis (RA) is a destructive chronic autoimmune disease characterized by synovium inflammation, cartilage destruction, bone erosion and the presence of autoantibodies. Hypoxia is a prominent micro-environmental feature in a range of disorders including RA. A combination of increased
The hypoxic microenvironment is a clinicopathological characteristic of many diseases, such as rheumatoid arthritis (RA). As a transcription factor activating the gene expression involved in processes such as cell metabolism and angiogenesis, hypoxia-inducible factor (HIF) has a central function in
Rheumatoid arthritis (RA) is the most common type of autoimmune arthritis. Hypoxia-inducible factor-1α (HIF-1α) as a transcription factor in response to hypoxia suggests that it could be a potential therapeutic target for the treatment of RA. In this study, we assessed whether the HIF pathway
Angiogenesis plays an important role in the pathogenesis of inflammatory diseases, including rheumatoid arthritis (RA). The site and extent of inflammation and subsequent joint destruction in the rheumatoid synovium is dependent on the development of new vasculature. Inhibition of angiogenesis,
Impaired apoptosis of rheumatoid arthritis (RA)‑fibroblast‑like synoviocytes (FLS) is pivotal in the process of RA. Peptidyl arginine deiminase type IV (PADI4) is associated with autoantibody regulation via histone citrullination in RA. The present study aimed to investigate the role of PADI4 in the
It was established in rat experiments that adaptation to altitude hypoxia leads to the enhancement of immune response to sheep red blood cells and to an increase in the serum lysozyme level. Adaptation to altitude hypoxia also suppresses adjuvant arthritis and prevents arthritis-induced inhibition
The commensal microbiota is one of the environmental triggers of rheumatoid arthritis (RA). Recent studies have identified the characteristics of the gut microbiota in patients with RA. However, it is still unclear how the microbiota can be modulated to slow down disease progression. In the present