Immunomics in Pediatric Rheumatic Diseases.
Ontology highlight
ABSTRACT:
SUBMITTER: Tay SH
PROVIDER: S-EPMC6558393 | biostudies-literature | 2019
REPOSITORIES: biostudies-literature
Publications
Immunomics in Pediatric Rheumatic Diseases.
Tay Shi Huan SH Yaung Katherine Nay KN Leong Jing Yao JY Yeo Joo Guan JG Arkachaisri Thaschawee T Albani Salvatore S
Frontiers in medicine 20190529
The inherent complexity in the immune landscape of pediatric rheumatic disease necessitates a holistic system approach. Uncertainty in the mechanistic workings and etiological driving forces presents difficulty in personalized treatments. The development and progression of immunomics are well suited to deal with this complexity. Immunomics encompasses a spectrum of biological processes that entail genomics, transcriptomics, epigenomics, proteomics, and cytomics. In this review, we will discuss h ...[more]
Similar Datasets
Project description:This article highlights efforts in pediatric rheumatology related to optimizing the care provided to patients with pediatric rheumatic diseases and describes various approaches to improve health outcomes.Recent studies report low rates of remission, frequent occurrence of comorbidities, disease damage, and decreased health-related quality of life in pediatric rheumatic diseases. The Pediatric Rheumatology Care and Outcomes Improvement Network is a quality improvement learning network that has demonstrated improvement in the process of care measures through use of a centralized patient registry, and interventions, including previsit planning, population management, shared decision making, and patient/parent engagement. A pediatric rheumatology patient-powered research network was established to enable patient and caregiver participation in setting research priorities and to facilitate data sharing to answer research questions. Quality measure development and benchmarking are proceeding in multiple pediatric rheumatic diseases.The review summarizes the current efforts to improve care delivery and outcomes in pediatric rheumatic diseases through a learning health system approach that harnesses knowledge from the clinical encounter to serve quality improvement, research, and discovery. Incorporating standard approaches to medication treatment plans may reduce variation in care, including using the patient voice to design research studies to bring focus on more patient relevant outcomes.http://links.lww.com/COR/A28.
| S-EPMC5175576 | biostudies-literature
Project description:BackgroundIn pediatric rheumatic diseases (PRD), adalimumab is dosed using fixed weight-based bands irrespective of methotrexate co-treatment, disease activity (DA) or other factors that might influence adalimumab pharmacokinetics (PK). In rheumatoid arthritis (RA) adalimumab exposure between 2-8 mg/L is associated with clinical response. PRD data on adalimumab is scarce. Therefore, this study aimed to analyze adalimumab PK and its variability in PRD treated with/without methotrexate.MethodsA two-center prospective study in PRD patients aged 2-18 years treated with adalimumab and methotrexate (GA-M) or adalimumab alone (GA) for ≥ 12 weeks was performed. Adalimumab concentrations were collected 1-9 (maximum concentration; Cmax), and 10-14 days (minimum concentration; Cmin) during ≥ 12 weeks following adalimumab start. Concentrations were analyzed with enzyme-linked immunosorbent assay (lower limit of quantification: 0.5 mg/L). Log-normalized Cmin were compared between GA-M and GA using a standard t-test.ResultsTwenty-eight patients (14 per group), diagnosed with juvenile idiopathic arthritis (71.4%), non-infectious uveitis (25%) or chronic recurrent multifocal osteomyelitis (3.6%) completed the study. GA-M included more females (71.4%; GA 35.7%, p = 0.13). At first study visit, children in GA-M had a slightly longer exposure to adalimumab (17.8 months [IQR 9.6, 21.6]) compared to GA (15.8 months [IQR 8.5, 30.8], p = 0.8). Adalimumab dosing was similar between both groups (median dose 40 mg every 14 days) and observed DA was low. Children in GA-M had a 27% higher median overall exposure compared to GA, although median Cmin adalimumab values were statistically not different (p = 0.3). Cmin values ≥ 8 mg/L (upper limit RA) were more frequently observed in GA-M versus GA (79% versus 64%). Overall, a wide range of Cmin values was observed in PRD (0.5 to 26 mg/L).ConclusionThis study revealed a high heterogeneity in adalimumab exposure in PRD. Adalimumab exposure tended to be higher with methotrexate co-treatment compared to adalimumab monotherapy although differences were not statistically significant. Most children showed adalimumab exposure exceeding those reported for RA with clinical response, particularly with methotrexate co-treatment. This highlights the need of further investigations to establish model-based personalized treatment strategies in PRD to avoid under- and overexposure.Trial registrationNCT04042792 , registered 02.08.2019.
| S-EPMC10763375 | biostudies-literature
Project description:Globally, the coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), appeared to have a milder clinical course in children compared to adults. As severe forms of COVID-19 in adults included an aberrant systemic immune response, children with chronic systemic inflammatory diseases were cautiously followed. No evidence for a specific susceptibility was identified in this pediatric population. European and US Pediatricians started to notice cases of myocarditis, sharing some features with toxic shock syndrome, Kawasaki disease, and macrophage activation syndrome in otherwise healthy patients. Multisystem Inflammatory Syndrome in Children (MIS-C) and Pediatric Inflammatory Multisystem Syndrome (PIMS) have designated this new entity in the US and Europe, respectively. The spectrum of severity ranged from standard hospitalization to pediatric intensive care unit management. Most patients had a clinical history of exposure to COVID-19 patients and/or SARS-COV2 biological diagnosis. Clinical presentations include fever, cardiac involvement, gastro-intestinal symptoms, mucocutaneous manifestations, hematological features, or other organ dysfunctions. The temporal association between the pandemic peaks and outbreaks of PIMS seems to be in favor of a post-infectious, immune-mediated mechanism. Thus, SARS-CoV2 can rarely be associated with severe systemic inflammatory manifestations in previously healthy children differently from adults highlighting the specific need for COVID-19 research in the pediatric population.
| S-EPMC7746854 | biostudies-literature
Project description:BackgroundThe purpose of this study was to identify reproductive health knowledge gaps and topics that concern adolescent and young adult (AYA) women with pediatric rheumatic diseases and their parents.MethodsData collection occurred in two cohorts. In the first cohort, young women (15-20 years old) with pediatric-onset rheumatic conditions and their parents were recruited from a single, academic pediatric rheumatology center. In the second cohort, young women (18-25 years old) with pediatric-onset rheumatic conditions were recruited from a national conference for families with pediatric rheumatic diseases. This resulted in 20 adolescents and young adults (18.3 ± 2.4 years old), and 7 parent focus group participants. Focus group leaders facilitated discussions centered on reproductive health topics that participants identified as important, their sources of knowledge, and preferences for patient education and ongoing follow-up. Data were summarized independently by 4 researchers to reduce potential bias and subsequently analyzed using rapid qualitative analysis.ResultsAll participants, regardless of diagnosis, medication, current sexual activity, or current intention to have children, expressed concern about the effect of their rheumatic condition and medications on fertility, risks to mother and child during and after pregnancy, and obtaining safe and effective contraception. Additionally, some participants discussed the burden of disease and its potential impact on motherhood. Finally, participants raised concern around the effect of disease and medication on routine reproductive health care, such as menstrual cycles, feminine self-care, and preventive exams. Three themes emerged: 1) participants had been advised to avoid unplanned pregnancy, however reported receiving inadequate explanation to support this instruction, 2) participants conceptualized reproductive health as tied to rheumatic disease management and thus suggested ways to include family members in discussion, and 3) rheumatology practitioners were not considered a resource of reproductive health information.ConclusionsYoung women and their parents reported dissatisfaction with the availability, quantity, and quality of reproductive health information they received, particularly when related to their pediatric-onset rheumatic disease. These findings provide an initial step in understanding the patient perspective of reproductive health in rheumatology, and how to address these concerns in the care of young women with rheumatic diseases.
| S-EPMC7433038 | biostudies-literature
Project description:The impact of the COVID-19 pandemic, and implemented restrictions on the frequency of pediatric rheumatic diseases remain unknown, while they have probably prevented common infections in children. We present the effects of the COVID-19 on our pediatric rheumatology practice in a main referral center. We retrospectively reviewed the medical records of patients presenting to pediatric rheumatology department in 4 years before March 2020 and compared it to the pandemic year (March 2020–March 2021). Since there was an overall decrease in patient numbers, we calculated the percentage according to the total number of that year. A total of 32,333 patients were evaluated. The mean annual number of patients decreased by 42% during the COVID-19 pandemic. When follow-up visits (25,156) were excluded, there were 2818 new diagnoses of rheumatic diseases. In the pre-pandemic period, familial Mediterranean fever (FMF) (n = 695, 28.1%) was the most frequent, whereas in the pandemic period multisystem inflammatory syndrome in children (MIS-C) (n = 68, 19.2%) was the most common diagnosis. There were no significant differences in the percentages of juvenile idiopathic arthritis, autoimmune diseases, rare autoinflammatory diseases, and other vasculitides. However, there was a significant decrease in patients diagnosed with FMF, IgA vasculitis (IgAV), acute rheumatic fever (ARF), classic Kawasaki disease (KD), and macrophage activation syndrome (MAS) (all p < 0.05). During the pandemic year, the percentage of most common diseases did not differ. On the other hand, we suggest that the decreases in IgAV, KD (classic), and MAS, which parallels the decrease in ARF, confirm the role of infections in the pathogenesis for these diseases. Supplementary Information The online version contains supplementary material available at 10.1007/s00296-021-05027-7.
| S-EPMC8561687 | biostudies-literature
Project description:ObjectiveCurrent management of patients with pediatric rheumatic diseases (PRD) should aim at achieving the best possible well-being. To identify sociodemographic/clinical characteristics, needed paramedical services and school accommodations associated with well-being in patients at inclusion in a French health network Réseau pour les Rhumatismes Inflammatoires Pédiatriques (RESRIP) that supports coordination of the patient's health pathway. To evaluate the evolution of well-being over time in this patients benefiting from such support.MethodsPatients > 3 years old enrolled in RESRIP (2013-2020) were included. At enrollment, data were collected on sociodemographic/clinical characteristics, ongoing medications, and paramedical and educational actions to be implemented by RESRIP. Well-being during the last 6 months was reported with a standardized questionnaire at enrollment and every 6 months. A well-being score was calculated with scores ranging from 0 to 18, 18 corresponding to absolute well-being. Patients were followed up from inclusion until June 2020.ResultsIn total, 406 patients were included and followed up for 36 months on average: 205 juvenile idiopathic arthritis, 68 connective tissue diseases, 81 auto-inflammatory diseases and 52 other diseases. The well-being score did not differ between the groups and improved significantly, by 0.04 score units, every 6 months (95% confidence interval [0.03; 0.06]). At inclusion, use of homeopathy, need for implementation of hypnosis or psychological support, occupational therapy or for adjustment of school tests were associated with worse well-being score.ConclusionWell-being seems associated more with the impact of chronic illness than the type of PRD underlining the importance of a comprehensive patient care.
| S-EPMC9990204 | biostudies-literature
Project description:BackgroundTranscriptome profiling of blood cells is an efficient tool to study the gene expression signatures of rheumatic diseases. This study aims to improve the early diagnosis of pediatric rheumatic diseases by investigating patients' blood gene expression and applying machine learning on the transcriptome data to develop predictive models.MethodsRNA sequencing was performed on whole blood collected from children with rheumatic diseases. Random Forest classification models were developed based on the transcriptome data of 48 rheumatic patients, 46 children with viral infection, and 35 controls to classify different disease groups. The performance of these classifiers was evaluated by leave-one-out cross-validation. Analyses of differentially expressed genes (DEG), gene ontology (GO), and interferon-stimulated gene (ISG) score were also conducted.ResultsOur first classifier could differentiate pediatric rheumatic patients from controls and infection cases with high area-under-the-curve (AUC) values (AUC = 0.8 ± 0.1 and 0.7 ± 0.1, respectively). Three other classifiers could distinguish chronic recurrent multifocal osteomyelitis (CRMO), juvenile idiopathic arthritis (JIA), and interferonopathies (IFN) from control and infection cases with AUC ≥ 0.8. DEG and GO analyses reveal that the pathophysiology of CRMO, IFN, and JIA involves innate immune responses including myeloid leukocyte and granulocyte activation, neutrophil activation and degranulation. IFN is specifically mediated by antibacterial and antifungal defense responses, CRMO by cellular response to cytokine, and JIA by cellular response to chemical stimulus. IFN patients particularly had the highest mean ISG score among all disease groups.ConclusionOur data show that blood transcriptomics combined with machine learning is a promising diagnostic tool for pediatric rheumatic diseases and may assist physicians in making data-driven and patient-specific decisions in clinical practice.
| S-EPMC9575227 | biostudies-literature
Project description:Objective. Colchicine is an alkaloid that is used to alleviate acute gout and to prevent acute attacks of familial Mediterranean fever (FMF). However, it is not beneficial when given during the occurrence of an acute episode of FMF. It is believed that colchicine exerts its anti-inflammatory effect through direct interaction with microtubules. We aim to study the molecular basis of colchicine action by analysing the effect of this drug on global gene expression of HUVEC (human umbilical vein endothelial cell line) cells. Methods. HUVEC cells were exposed to various concentrations of colchicine and were harvested at different time points. Ribonucleic acid was extracted, amplified, reverse transcribed and hybridized to complementary deoxyribonucleic acid microarrrays containing more than 40,000 probes to human expressed sequence tags. This approach enabled us to have a global look at the transcriptional response induced by colchicine treatment. Results. Colchicine changed the expression of many genes in HUVEC cells following exposure to a concentration of 100 ng/ml or higher. Following short exposure (30 or 120 min), colchicine affected genes known to be involved in the cell cycle and its regulation. However, change in expression of genes involved in neutrophil migration or other inflammatory processes were observed mainly after 12 to 24 h. Conclusions. The anti-inflammatory effect of colchicine may be mediated not only through direct interaction with microtubules but also through changes at the transcriptional level. This latter effect apparently requires a higher concentration and a longer time to occur. This can explain the observation that colchicine does not have an immediate effect when given during an acute attack of FMF. A dose response design type examines the relationship between the size of the administered dose and the extent of the response of the organism(s). Using regression correlation
2006-01-24 | E-GEOD-4090 | biostudies-arrayexpress
Project description:There has been a progressive interest on modifications of the human defense system following insults occurring in the interface between our body and the external environment, as they may provoke or worsen disease states. Studies suggest that billions of germs, which compose the gut microbiota influence one's innate and adaptive immune responses at the intestinal level, but these microorganisms may also impact rheumatic diseases. The microbiota of the skin, respiratory, and urinary tracts may also be relevant in rheumatology. Evidence indicates that changes in the gut microbiome alter the pathogenesis of immune-mediated diseases such as rheumatoid arthritis and ankylosing spondylitis but also of other disorders like atherosclerosis and osteoarthritis. Therapeutic strategies to modify the microbiota, including probiotics and fecal microbiota transplantation, have been received with skepticism, which, in turn, has drawn attention back to previously developed interventions such as antibiotics. Helminths adapted to humans over the evolution process, but their role in disease modulation, particularly immune-mediated diseases, remains to be understood. The present review focuses on data concerning modifications of the immune system induced by interactions with microbes and pluricellular organisms, namely helminths, and their impact on rheumatic diseases. Practical aspects, including specific microbiota-targeted therapies, are also discussed.
| S-EPMC7203059 | biostudies-literature
Project description:Inflammatory rheumatic diseases (IRDs), encompassing a broad spectrum of chronic disorders, typically necessitate prolonged therapeutic intervention. Nevertheless, these diseases can sometimes manifest as severe emergencies requiring prompt and extensive medical intervention. Urgent intervention is essential for effectively recognizing and managing these situations, as they have the potential to be life-threatening and can result in severe morbidity and mortality. Emergencies in IRDs can occur with different frequencies and manifestations, including nervous system issues, severe infections, thrombosis-emboli, renal crises, gastrointestinal issues, and cardiovascular events. The fact that these events can occur across different IRDs underscores the necessity for heightened awareness and readiness among healthcare professionals. The pathophysiologic mechanisms that cause rheumatic emergencies are complex and involve multiple factors. These emergencies frequently arise due to the interplay between the inflammatory characteristics of rheumatic diseases and different systemic triggers. Early detection and treatment can have a substantial impact on an individual's prognosis in cases of severe and life-threatening disorders that require prompt recognition. Rapid decision-making and urgent care are required to effectively address rheumatic emergencies, as well as the implementation of a diagnostic flowchart. This article provides an overview of the emergencies linked to IRDs, classifying and assessing them individually. This article aims to enhance healthcare professionals' knowledge and awareness of critical situations by examining current recommendations and pathophysiological information. Implementing standardized diagnostic and treatment methods, providing patient education, and conducting continuing research into the underlying mechanisms are essential for enhancing the management of these critical situations and improving patient outcomes.
| S-EPMC11343811 | biostudies-literature