OBJECTIVES: Our previous studies have demonstrated that the Damage Associated Molecular Pattern (DAMP) protein, S100A4, is overexpressed in the involved skin and peripheral blood of patients with SSc. It is associated with skin and lung involvement, and disease activity. By contrast, lack of S100A4 prevented the development of experimental dermal fibrosis. Herein we aimed to evaluate the effect of murine anti-S100A4 mAb 6B12 in the treatment of preestablished experimental dermal fibrosis. METHODS: The effects of 6B12 were assessed at therapeutic dosages in a modified bleomycin-induced dermal fibrosis mouse model by evaluating fibrotic (dermal thickness, proliferation of myofibroblasts, hydroxyproline content, phosphorylated Smad3-positive cell count) and inflammatory (leukocytes infiltrating the lesional skin, systemic levels of selected cytokines and chemokines) outcomes, and transcriptional profiling (RNA sequencing). RESULTS: Treatment with 7.5 mg/kg 6B12 attenuated and might even reduce pre-existing dermal fibrosis induced by bleomycin as evidenced by reduction in dermal thickness, myofibroblast count and collagen content. These antifibrotic effects were mediated by the downregulation of TGF-β/Smad signalling and partially by reducing the number of leukocytes infiltrating the lesional skin and decrease in the systemic levels of IL-1α, eotaxin, CCL2 and CCL5. Moreover, transcriptional profiling demonstrated that 7.5 mg/kg 6B12 also modulated several profibrotic and proinflammatory processes relevant to the pathogenesis of SSc. CONCLUSION: Targeting S100A4 by the 6B12 mAb demonstrated potent antifibrotic and anti-inflammatory effects on bleomycin-induced dermal fibrosis and provided further evidence for the vital role of S100A4 in the pathophysiology of SSc.
- MeSH
- alarminy * MeSH
- bleomycin toxicita MeSH
- fibróza MeSH
- kůže * patologie MeSH
- lidé MeSH
- modely nemocí na zvířatech MeSH
- monoklonální protilátky farmakologie MeSH
- myši MeSH
- S100 kalcium vázající protein A4 genetika MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- myši MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
OBJECTIVES: We aimed to evaluate cardiovascular (CV) risk in patients with idiopathic inflammatory myopathies (IIM) compared with healthy controls (HC) and to assess its association with disease-specific features. METHODS: Ninety IIM patients and 180 age-/sex-matched HC were included. Subjects with a history of CV disease (angina pectoris, myocardial infarction and cerebrovascular/peripheral arterial vascular events) were excluded. All participants were prospectively recruited and underwent examinations of carotid intima-media thickness (CIMT), pulse wave velocity (PWV), ankle-brachial index (ABI), and body composition. The risk of fatal CV events was evaluated by the Systematic COronary Risk Evaluation (SCORE) and its modifications. RESULTS: Compared with HC, IIM patients had a significantly higher prevalence of traditional CV risk factors, carotid artery disease (CARD), abnormal ABI and PWV. After propensity score matching (using traditional CV risk factors), the prevalence of CARD and pathological PWV remained significantly higher in IIM than HC. No significant difference in SCORE was observed. The most unfavourable CV risk profile was observed in patients with necrotizing myopathy, especially in statin-induced anti-HMGCR+ patients. The calculated CV risk scores by SCORE, SCORE2 and SCORE multiplied by the coefficient 1.5 (mSCORE) were reclassified according to CIMT and the presence of carotid plaques. SCORE was demonstrated to be most inaccurate in predicting CV risk in IIM. Age, disease activity, lipid profile, body composition parameters and blood pressure were the most significant predictors of CV risk in IIM patients. CONCLUSION: Significantly higher prevalence of traditional risk factors and subclinical atherosclerosis was observed in IIM patients compared with HC.
- MeSH
- analýza pulzové vlny MeSH
- intimomediální šíře tepenné stěny MeSH
- kardiovaskulární nemoci * epidemiologie etiologie MeSH
- lidé MeSH
- myozitida * epidemiologie MeSH
- nemoci arterie carotis * MeSH
- rizikové faktory kardiovaskulárních chorob MeSH
- rizikové faktory MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
There is increasing knowledge in the recognition of individuals at risk for progression to rheumatoid arthritis (RA) before the clinical manifestation of the disease. This prodromal phase preceding the manifestation of RA may represent a "window of opportunity" for preventive interventions that may transform the clinical approach to this disease. However, limited evidence exists in support of effective interventions to delay the onset or even halt the manifestation of RA. Given the multifactorial nature of RA development and disease progression, the latest guidelines for established RA stress the use of integrative interventions and multidisciplinary care strategies, combining pharmacologic treatment with non-pharmacological approaches. Accordingly, individuals at risk of RA could be offered an integrative, multifactorial intervention approach. Current data point toward pharmacological intervention reverting the subclinical inflammation and delay in the disease onset. In addition, targeting life style modifiable factors (smoking cessation, dental health, physical activity, and diet) may presumably improve RA prognosis in individuals at risk, mainly by changes in epigenetics, autoantibodies, cytokines profiles, and microbiome. Nonetheless, the benefits of multidisciplinary interventions to halt the manifestation of RA in at-risk individuals remain unknown. As there is a growing knowledge of possible pharmacological intervention in the preclinical phase, this narrative review aims to provide a comprehensive overview of non-pharmacological treatments in individuals at risk of RA. Considering the mechanisms preceding the clinical manifestation of RA we explored all aspects that would be worth modifying and that would represent an integrative non-pharmacological care for individuals at risk of RA.
- MeSH
- autoprotilátky MeSH
- lidé MeSH
- prognóza MeSH
- revmatoidní artritida * terapie farmakoterapie MeSH
- zánět MeSH
- životní styl MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
Revmatologie zažívá v posledních letech významný pokrok, který je důsledkem zdůrazňování časné diagnostiky a uplatňo- vání principů léčby k cíli, stejně jako nových imunopatogenetických poznatků a dostupnosti širokého spektra biologických a cílených syntetických léčivých přípravků. V tomto sdělení přinášíme nové poznatky z oblasti diagnostiky a léčby vybraných revmatických onemocnění, a to konkrétně revmatoidní artritidy, spondyloartritid, systémového lupus erythematodes, systémové sklerodermie, idiopatických zánětlivých myopatií, systémových vaskulitid, revmatické polymyalgie a obrov- skobuněčné arteriiitidy a také osteoartrózy. Toto sdělení si klade za cíl přinést souhrn nejnovějších poznatků a trendů v diagnostice a léčbě těchto revmatických onemocnění, které mají zásadní vliv na kvalitu života pacientů.
Rheumatology has experienced significant advances in recent years as a result of the emphasis on early diagnosis and the application of treat-to-target principles, as well as new immunopathogenetic findings and the availability of a wide range of biologic and targeted synthetic drugs. In this communication, we present new findings in the diagnosis and treatment of selected rheumatic diseases, specifically rheumatoid arthritis, spondyloarthritis, systemic lupus erythematosus, systemic scleroderma, idiopathic inflammatory myopathies, systemic vasculitis, rheumatic polymyalgia and giant cell arteritis, and osteoarthritis. This communication aims to provide a summary of the latest findings and trends in the diagnosis and treatment of these rheumatic diseases, which have a major impact on the quality of life of patients.
- MeSH
- ANCA-asociované vaskulitidy diagnóza farmakoterapie MeSH
- antirevmatika aplikace a dávkování farmakologie terapeutické užití MeSH
- axiální spondyloartritida diagnóza farmakoterapie komplikace MeSH
- biologická terapie metody MeSH
- imunoterapie adoptivní metody MeSH
- inhibitory Janus kinas aplikace a dávkování farmakologie terapeutické užití MeSH
- intravenózní imunoglobuliny aplikace a dávkování terapeutické užití MeSH
- methotrexát aplikace a dávkování terapeutické užití MeSH
- monoklonální protilátky aplikace a dávkování farmakologie terapeutické užití MeSH
- myozitida diagnóza farmakoterapie imunologie MeSH
- obrovskobuněčná arteritida diagnóza farmakoterapie MeSH
- osteoartróza diagnóza farmakoterapie MeSH
- polymyalgia rheumatica diagnóza terapie MeSH
- psoriatická artritida diagnóza farmakoterapie komplikace MeSH
- revmatické nemoci * diagnóza farmakoterapie komplikace MeSH
- revmatoidní artritida diagnóza farmakoterapie komplikace MeSH
- rizikové faktory MeSH
- systémová sklerodermie diagnóza farmakoterapie komplikace MeSH
- systémový lupus erythematodes diagnóza farmakoterapie komplikace MeSH
OBJECTIVE: Interleukin (IL)-40 is a new cytokine related to immune system function and malignancies. Recently, an association of IL-40 with rheumatoid arthritis (RA) and externalisation of neutrophil extracellular traps (NETosis) was found. As neutrophils are implicated in RA development, we investigated IL-40 in early stages of RA (ERA). METHODS: IL-40 was determined in serum of treatment naïve patients with ERA at baseline (n=60) and 3 months after initiation of conventional therapy and in healthy controls (HC; n=60). Levels of IL-40, cytokines and NETosis markers were measured by ELISA. NETosis was visualised by immunofluorescence. In vitro experiments were performed on peripheral blood neutrophils from ERA patients (n=14). Cell-free DNA was analysed in serum and supernatants. RESULTS: Serum IL-40 was elevated in ERA compared with HC (p<0.0001) and normalised after 3 months of therapy (p<0.0001). Baseline serum IL-40 correlated with rheumatoid factor (IgM) (p<0.01), anti-cyclic citrullinated peptide (p<0.01) autoantibodies and NETosis markers (proteinase 3; neutrophil elastase (NE); myeloperoxidase) (p<0.0001). Levels of NE significantly decreased after therapy (p<0.01) and correlated with the decrease of serum IL-40 (p<0.05). In vitro, neutrophils enhanced IL-40 secretion following NETosis induction (p<0.001) or after exposure to IL-1β, IL-8 (p<0.05), tumour necrosis factor or lipopolysaccharide (p<0.01). Recombinant IL-40 up-regulated IL-1β, IL-6 and IL-8 (p<0.05 for all) in vitro. CONCLUSION: We showed that IL-40 is significantly up-regulated in seropositive ERA and decreases after conventional therapy. Moreover, neutrophils are an important source of IL-40 in RA, and its release is potentiated by cytokines and NETosis. Thus, IL-40 may play a role in ERA.
- MeSH
- autoprotilátky MeSH
- cytokiny MeSH
- interleukin-8 MeSH
- interleukiny MeSH
- lidé MeSH
- neutrofily * MeSH
- revmatoidní artritida * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
