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Detection and Prediction of Macrophage Activation Syndrome in Still's Disease.

ABSTRACT: Distinguishing between macrophage activation syndrome (MAS) and a simple flare of Still's disease (SD) may be challenging. We sought to clarify the clinical features and outcome of MAS in SD and to explore predictive factors of MAS development. Demographic and clinical data, treatments, and outcomes were recorded in a cohort of 206 SD patients. SD patients with and without MAS were compared. To explore predictive factors for the development of MAS, patients were compared at the time of SD diagnosis. Twenty (9.7%) patients experienced MAS, which was inaugural in 12 cases. Patients with MAS were more likely to have hepatomegaly (OR, 3.71; 95% CI, 1.14-11.2; p = 0.03) and neurological symptoms (OR, 4.43; 95% CI, 1.08-15.3; p = 0.04) than patients without MAS. Cytopenias, abnormal liver tests, and coagulation disorders were significantly more frequent in patients with MAS; lactate dehydrogenase and serum ferritin levels were significantly higher. An optimized threshold of 3500 μg/L for serum ferritin yielded a sensitivity (Se) of 85% and a negative predictive value (NPV) of 97% for identifying patients with/without MAS. Survival analysis showed that a high ferritin level at the time of SD diagnosis was predictive of MAS development (p < 0.001). Specific factors, including neurological symptoms, cytopenias, elevated LDH, and coagulopathy, may contribute to the early detection of MAS. Extreme hyperferritinemia at the onset of SD is a prognostic factor for the development of MAS.

SUBMITTER: Javaux C

PROVIDER: S-EPMC8745834 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Macrophage activation syndrome in a patient with adult-onset Still's disease following first COVID-19 vaccination with BNT162b2.

Project description:BackgroundAdult-onset Still's disease (AOSD) is an autoinflammatory multi-systemic syndrome. Macrophage activation syndrome (MAS) is a potentially life-threatening complication of AOSD with a mortality rate of 10-20%. Especially viral infection is thought to be a common trigger for development of MAS. On the other hand, the occurrence of MAS following vaccinations is extremely rare and has been described in a few cases after measles or influenza vaccinations and more recently after ChAdOx1 nCoV-19 (COVID-19 viral vector vaccine, Oxford-AZ).Case presentationWe report the case of a twenty-year-old female with adult-onset Still's disease (AOSD), who developed a MAS six days after receiving her first COVID-19 vaccine dose of BNT162b2 (mRNA vaccine, BioNTech/Pfizer) with ferritin levels of 136,680 µg/l (ref.: 13-150 µg/l).ConclusionsTo the best of our knowledge, this is the first case report of development of MAS in a patient with preexisting AOSD after vaccination in general, and SARS-CoV-2 vaccination in particular. The new mRNA vaccines have generally shown a reassuring safety profile, but it has been shown that nucleic acids in general, including mRNA can act as pathogen-associated molecular patterns that activate toll-like receptors with extensive production of pro-inflammatory cytokines and further activation of immune cells. Proving an interferon 1 response in our patient directly after vaccination, we think that in this particular case the vaccination might have acted as trigger for the development of MAS. Even if it remains difficult to establish causality in the case of rare adverse events, especially in patients with autoimmune or autoinflammatory conditions, these complications are important to monitor and register, but do not at all diminish the overwhelming positive benefit-risk ratio of licensed COVID-19 vaccines.

| S-EPMC8712099 | biostudies-literature

Adult-Onset Still's Disease Presenting as Macrophage-Activation Syndrome With Critical Illness in the Third Trimester of Pregnancy: A Case Report.

Project description:We report a case of a young woman with adult-onset Still's disease presenting as macrophage-activation syndrome complicated by shock and respiratory failure during the third trimester of pregnancy.Case summaryA previously healthy 26-year-old woman at 35 weeks of gestation presented with 1 week of constitutional symptoms and was found to be febrile, tachycardic, and hypotensive. She delivered a healthy neonate by cesarean section. Following delivery, she had worsening hypotension and fevers despite fluid resuscitation and antibiotics, and developed progressive hypoxemia requiring up to 60% Fio2, with bilateral upper-lobe predominant opacities on chest CT. She also had laboratory derangements including anemia, thrombocytopenia, low fibrinogen, elevated ferritin, and abnormal liver chemistries. After extensive testing to exclude infections, hemolysis, and other pertinent disorders, the development of polyarthralgias and a characteristic rash fulfilled criteria for adult-onset Still's disease complicated by macrophage-activation syndrome. Her condition improved with immunosuppressive therapy.ConclusionTo our knowledge, this is the first report of new-onset adult-onset Still's disease during the third trimester of pregnancy, which presented as macrophage-activation syndrome. In the context of late pregnancy, macrophage-activation syndrome can mimic or raise concern for hemolysis, elevated liver enzymes, and low platelet syndrome and other peripartum disorders. Furthermore, the characteristic articular symptoms of adult-onset Still's disease may be mild and/or delayed, and pulmonary involvement with severe hypoxemia can occur. Clinicians should consider this diagnosis when evaluating a pregnant patient with unexplained fever and multiorgan dysfunction.

| S-EPMC8148416 | biostudies-literature

Macrophage Activation Syndrome

Project description: Not available

| S-EPMC7123081 | biostudies-literature

Total metabolic lesion volume of lymph nodes measured by <sup>18</sup>F-FDG PET/CT: a new predictor of macrophage activation syndrome in adult-onset Still's disease.

Project description:BackgroundTo investigate the potential utility of quantitative parameters obtained by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the assessment of disease severity and the occurrence of macrophage activation syndrome (MAS) in adult-onset Still's disease (AOSD).MethodsFifty-seven patients with AOSD who underwent pre-treatment 18F-FDG PET/CT were recruited in this study and compared with 60 age- and sex-matched healthy controls. Clinical features and laboratory data were recorded. The systemic score was assessed to determine the disease severity. The maximal standardized uptake value (SUVmax), metabolic lesion volume (MLV), and total lesion glycolysis (TLG) were used to evaluate the involved organs and tissues that abnormally accumulated 18F-FDG. Multivariate analysis was performed to identify the PET/CT-derived risk factors contributing to the AOSD-related MAS, and their diagnostic efficiency was evaluated.ResultsHigh 18F-FDG accumulation was observed in the bone marrow (SUVmax median, 5.10), spleen (SUVmax median, 3.70), and lymph nodes (LNs, SUVmax median, 5.55). The SUVmax of the bone marrow (rho = 0.376, p = 0.004), SUVmax of the spleen (rho = 0.450, p < 0.001), TLGtotal of LNs (rho = 0.386, p = 0.017), and MLVtotal of LNs (rho = 0.391, p = 0.015) were correlated with the systemic score. The SUVmax of the spleen (p = 0.017), TLGtotal of LNs (p = 0.045), and MLVtotal of LNs (p = 0.012) were higher in patients with MAS than in those without MAS. A MLVtotal of LNs > 62.2 (OR 27.375, p = 0.042) was an independent predictive factor for MAS with a sensitivity of 80.0% and a specificity of 93.9%.ConclusionsThe glucose metabolic level of the spleen could be an effective and easy-to-use imaging indicator of disease severity, and MLVtotal of LNs > 62.2 was a strong predictor of MAS occurrence in patients with AOSD.

| S-EPMC8008587 | biostudies-literature

A genetic role for macrophage migration inhibitory factor (MIF) in adult-onset Still's disease.

Project description:IntroductionAdult-onset still's disease (AOSD) is a rare systemic inflammatory disorder in which abnormalities in inflammatory cytokines production appear to play a pathophysiological role. Our previous work has reported increased expression of macrophage migration inhibitory factor (MIF) and revealed its correlation with disease severity and activity in AOSD. A -173 G/C single nucleotide polymorphism (SNP) (rs755622) and a -794 CATT₅₋₈ repeat (rs5844572) in the MIF promoter have been reported. In this study, we sought to explore the relationship between functional MIF promoter polymorphisms and MIF expression in AOSD.Methods100 patients and 200 controls were recruited in the study. A polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay was utilized to analyze the -173 G/C SNP (rs755622) and PCR-based size discrimination assay was applied to detect the -794 CATT₅₋₈ repeat (rs5844572) in the MIF promoter. Plasma MIF levels were measured by ELISA. MIF mRNA levels were quantified by real-time reverse transcription (RT)-PCR. Bisulfate genomic sequencing was employed to evaluate DNA methylation status within the MIF promoter.ResultsWe identified that the frequencies of MIF -794 CATT₅ (P = 0.001) allele and the expression of MIF (P <0.001) were increased in patients compared to healthy controls. Plasma levels of MIF in patients with CC genotype were higher than those of patients with GC or GG genotypes (P = 0.05). In patients with established AOSD, a higher frequency of -794 CATT₇ containing MIF genotypes was observed in those with liver dysfunction (P = 0.009). Haplotype analysis revealed a higher representation of the MIF haplotype defined by -173*C/-794 CATT₅ (C5) in AOSD patients (P = 0.001).ConclusionFunctional promoter polymorphisms in the MIF gene influence plasma MIF levels in AOSD and may contribute to disease susceptibility or clinical presentation of AOSD.

| S-EPMC4060242 | biostudies-literature

Repeated TLR9 stimulation results in macrophage activation syndrome-like disease in mice.

Project description:Hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome (MAS) are 2 similar diseases characterized by a cytokine storm, overwhelming inflammation, multiorgan dysfunction, and death. Animal models of HLH suggest that disease is driven by IFN-? produced by CD8? lymphocytes stimulated by persistent antigen exposure. In these models and patients with "primary" HLH, the antigen persists due to genetic defects, resulting in ineffective cytotoxic responses by CD8? T cells and poor pathogen clearance. However, infectious triggers are often not identified in patients with MAS, and some patients with HLH or MAS lack defects in cytotoxic T cell killing. Herein, we show that repeated stimulation of TLR9 produced an HLH/MAS-like syndrome on a normal genetic background, without exogenous antigen. Like previous HLH models, TLR9-induced MAS was IFN-? dependent; however, unlike other models, disease did not require lymphocytes. We further showed that IL-10 played a protective role in this model and that blocking IL-10 signaling led to the development of hemophagocytosis. IL-10 may therefore be an important target for the development of effective therapeutics for MAS. Our data provide insight into MAS-like syndromes in patients with inflammatory diseases in which there is chronic innate immune activation but no genetic defects in cytotoxic cell function.

| S-EPMC3104738 | biostudies-literature

Monocyte gene expression in adult-onset Still's disease

Project description:Adult-onset Still’s disease (AOSD) is a rare autoinflammatory disease, characterized by fever, rash, arthritis and other systemic inflammatory manifestations like hepatosplenomegaly and serositis. One of the most serious complications AOSD is macrophage activation syndrome (MAS), a life-threatening condition caused by excessive activation of immune system and a cytokine storm. Clinical features of MAS include continuous high fever, hepatosplenomegaly, liver dysfunction, lymphadenopathy, hyperferritinemia, and hemophagocytosis. The prevalence of MAS in AOSD patients is estimated to be between 10–19%, but the mortality rate of AOSD-associated MAS is approximately 10–20%. The precise mechanism by which AOSD develops to MAS remains unclear. There is an unmet need to investigate the pathogenesis of MAS in AOSD in order to identify novel biomarkers and therapeutic targets to improve disease prognosis.

2023-12-22 | GSE247993 | GEO

Neutrophil gene expression in adult-onset Still's disease

Project description:Adult-onset Still’s disease (AOSD) is a rare autoinflammatory disease, characterized by fever, rash, arthritis and other systemic inflammatory manifestations like hepatosplenomegaly and serositis. Neutrophil activation is the hallmark of AOSD. Here we aimed to identify candidate biomarker and to validate its association with clinical manifestations in AOSD. Transcriptome analysis of neutrophils from treatment-naïve active AOSD patients and healthy donors was performed. Using cut-offs of >2.0 fold change with p<0.05, we identified 864 DEGs in neutrophils from patients with active AOSD compared to healthy donors, including 442 and 422 upregulated and downregulated genes in active AOSD, respectively. By gene ontology (GO) analysis, we identified several strongly enriched terms of biological process. The most significantly indicated GO term was neutrophil degranulation.

2020-05-22 | GSE150996 | GEO

Acute Myocarditis Revealing Adult-Onset Still's Disease.

Project description:A 34-year-old man presented with fever, palpitations, maculopapular rash, pharyngitis, left cheilitis, and bilateral gonalgia. High-sensitivity troponin I concentration was 4,900 ng/l. Transthoracic echocardiogram revealed reduced global longitudinal strain. Cardiac magnetic resonance imaging showed acute myocarditis. Adult-onset Still's disease was diagnosed, and treatment with intravenous corticosteroids and tocilizumab was initiated. (Level of Difficulty: Beginner.).

| S-EPMC8311366 | biostudies-literature

Macrophage activation syndrome in the era of biologic therapy.

Project description:Macrophage activation syndrome (MAS) refers to acute overwhelming inflammation caused by a 'cytokine storm'. Although increasingly recognized as a life-threatening complication of various rheumatic diseases, clinically, MAS is strikingly similar to primary and secondary forms of haemophagocytic lymphohistiocytosis (HLH). Not surprisingly, many rheumatologists prefer the term secondary HLH rather than MAS to describe this condition, and efforts to change the nomenclature are in progress. The pathophysiology of MAS remains elusive, but observations in animal models, as well as data on the effects of new anticytokine therapies on rates and clinical presentations of MAS in patients with systemic juvenile idiopathic arthritis (sJIA), provide clues to the understanding of this perplexing clinical phenomenon. In this Review, we explore the latest available evidence and discuss potential diagnostic challenges in the era of increasing use of biologic therapies.

| S-EPMC5851441 | biostudies-literature

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