Assessment of CD40 and CD40L expression in rheumatoid arthritis patients, association with clinical features and DAS28

AbstractThe predominance of the effector mechanisms by CD4  + T cells is a characteristic of inflammatory autoimmune diseases such as rheumatoid arthritis (RA). The CD40/CD40L costimulatory pathway contributes to these pathogenic mechanisms by promoting autoantibody production and inflammation. Aberrant expression of CD40 and CD40L in RA patients has be en shown, the latter prevailing in females. However, contrasting results have emerged regarding the clinical associations of these findings. We determined the association of CD40 and CD40L expression with the clinical activity evaluated through DAS28 in RA patients. A total of 38 female RA patients and 10 age- and sex-matched control subjects were included. CD40 and CD40L mRNA expression was quantified by real-time qPCR, cell surface proteins were determined by flow cytometry, and protein soluble forms were determined by ELISA. The expansion of a CD4 + T cell subpopulation expressing CD40 was identified in the RA group. In addition, high frequencies of CD4 + CD40L + T cells expressing high levels of CD40L, increased levels of sCD40L and overexpression ofCD40L mRNA were observed in these patients. Moreover, there was a gradual increase in CD40L when data were stratified according to DAS28, except for very active patients. No correlation was observed between the levels of mRNA, cell surface protein and soluble protein of CD40 and CD40L with the clinical features of RA patie...
Source: Clinical and Experimental Medicine - Category: Research Source Type: research

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M. Yassine For a long time, viruses have been shown to modify the clinical picture of several autoimmune diseases, including type 1 diabetes (T1D), systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), Sjögren’s syndrome (SS), herpetic stromal keratitis (HSK), celiac disease (CD), and multiple sclerosis (MS). Best examples of viral infections that have been proposed to modulate the induction and development of autoimmune diseases are the infections with enteric viruses such as Coxsackie B virus (CVB) and rotavirus, as well as influenza A viruses (IAV), and herpesviruses. Other viruses that ...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
Authors: Wang P, Mao YM, Liu LN, Zhao CN, Li XM, Pan HF Abstract A growing body of data suggests that semaphorins are involved in both normal and pathological immune responses, as well as autoimmune pathologies. To investigate the plasma semaphorin 3A (Sema3A) and semaphorin 7A (Sema7A) levels in systemic lupus erythematosus (SLE) patients and their correlation with clinical manifestations and laboratory indexes, a two-step method was applied. First, 80 SLE patients and 80 healthy controls were recruited for comparing serum Sema3A and Sema7A concentrations. Second, 40 rheumatoid arthritis (RA) patients and 40 sj&ou...
Source: Immunological Investigations - Category: Allergy & Immunology Tags: Immunol Invest Source Type: research
Publication date: Available online 12 August 2019Source: Pharmacological ResearchAuthor(s): Charalampos Skarlis, Nikolaos Marketos, Clio P. MavraganiAbstractThe use of biologic disease modifying antirheumatic drugs (bDMARDs) in systemic autoimmune diseases such as rheumatoid arthritis and at a lesser extent in lupus, has been well established. In Sjögren's syndrome (SS), despite the shared pathogenetic mechanisms with other autoimmune disorders, traditional immunomodulatory drugs have failed to address the main clinical features of the disease and use of biologics has been limited so far. Over the last years, our bett...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
Background: Rheumatoid arthritis is a type of systemic and complex autoimmune disease characterized by chronic joint inflammation. Spleen tyrosine kinase (Syk) inhibitors are regarded as an effective alternative to existing drugs for the treatment of this disease. However, studies evaluating fostamatinib, a new Syk inhibitor, are either invalid or insufficient. Through a systematic review and meta-analysis, we evaluated the efficacy and safety of fostamatinib at different dosages in rheumatoid arthritis patients that display an inadequate response to methotrexate or disease-modifying antirheumatic drugs. Methods: Randomi...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Abstract The TGF-β superfamily of cytokines plays pivotal roles in the regulation of immune responses protecting against or contributing to diseases, such as, allergy, autoimmunity and cancer. Activin-A, a member of the TGF-β superfamily, was initially identified as an inducer of follicle-stimulating hormone secretion. Extensive research over the past decades illuminated fundamental roles for activin-A in essential biologic processes, including embryonic development, stem cell maintenance and differentiation, haematopoiesis, cell proliferation and tissue fibrosis. Activin-A signals through two type I and...
Source: Journal of Autoimmunity - Category: Allergy & Immunology Authors: Tags: J Autoimmun Source Type: research
ConclusionAnti-DFS70 antibody was more prevalent in the subsets of SARD than BD. This result may be related to the demographic formation of study groups and individual immunological status. More comprehensive studies are needed to investigate the importance of the anti-DFS70 antibody for SARD.Key Points• This study draws attention to the importance of anti-DFS70 antibodies in the diagnostic algorithm in systemic autoimmune rheumatic diseases.• This study emphasizes the further investigation of anti-DFS70 antibodies in undifferentiated connective tissue diseases.• This study emphasizes the need to verify the ...
Source: Clinical Rheumatology - Category: Rheumatology Source Type: research
Rheumatoid arthritis (RA) is one of the most common autoimmune diseases. One hypothesis is that inflammation in the respiratory tract results in autoantibody formation that later leads to disease. Kronzer et al. set out to narrow the knowledge gaps related to the oral-respiratory factors that may mediate RA pathogenesis.
Source: The Rheumatologist - Category: Rheumatology Authors: Tags: Conditions Rheumatoid Arthritis Arthritis & Rheumatology asthma lungs respiratory Rheumatoid Arthritis (RA) Smoking Source Type: research
Profound and debilitating fatigue is the most common complaint reported among individuals with autoimmune disease, such as systemic lupus erythematosus, multiple sclerosis, type 1 diabetes, celiac disease, chronic fatigue syndrome, and rheumatoid arthritis. Fatigue is multi-faceted and broadly defined, which makes understanding the cause of its manifestations especially difficult in conditions with diverse pathology including autoimmune diseases. In general, fatigue is defined by debilitating periods of exhaustion that interfere with normal activities. The severity and duration of fatigue episodes vary, but fatigue can cau...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study aimed to investigate and evaluate the therapeutic effect of RAM with or without Methotrexate (MTX) against adjuvant-induced arthritis in rats. Complete Freund's adjuvant (CFA)-induced arthritic rats were treated for three consecutive weeks with MTX or RAM alone and MTX-RAM co-therapy. Arthritic score, gait score, ankle diameter, paw thickness, angiogenic, inflammatory cytokines, bone erosion markers, and apoptotic markers were assessed to evaluate the anti-arthritic effect. RAM monotherapy exhibited anti-inflammatory, anti-angiogenic and anti-apoptotic effects similar to MTX alone to treat RA in the current stud...
Source: Toxicology and Applied Pharmacology - Category: Toxicology Authors: Tags: Toxicol Appl Pharmacol Source Type: research
ConclusionThe occurrence of a flare/IRAE is frequent but mostly manageable without ICI discontinuation in patients with PAD. Immunosuppressive therapy at baseline was associated with poorer outcomes.This article is protected by copyright. All rights reserved.
Source: Arthritis and Rheumatology - Category: Rheumatology Authors: Tags: Full Length Source Type: research
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