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Autoinflammatory disorder

Rohan Ameratunga, Daman Langguth, David Hawkes
The autoimmune/autoinflammatory syndrome induced by adjuvants (ASIA) was first described in 2011. The aluminium containing adjuvants of vaccines were stated to be one of the main causes of the condition. Other disorders associated with ASIA include siliconosis, Gulf war syndrome, sick building syndrome and the macrophagic myositis syndrome. We have recently reviewed ASIA as defined by its authors. We have shown that the definition of ASIA is imprecise and includes all patients with an autoimmune disorder as well as potentially the entire population...
March 8, 2018: Autoimmunity Reviews
Rob J W Arts, Leo A B Joosten, Mihai G Netea
During induction of trained immunity, monocytes and macrophages undergo a functional and transcriptional reprogramming toward increased activation. Important rewiring of cellular metabolism of the myeloid cells takes place during induction of trained immunity, including a shift toward glycolysis induced through the mTOR pathway, as well as glutaminolysis and cholesterol synthesis. Subsequently, this leads to modulation of the function of epigenetic enzymes, resulting in important changes in chromatin architecture that enables increased gene transcription...
2018: Frontiers in Immunology
Stephen Keddie, Shirley D'Sa, David Foldes, Aisling S Carr, Mary M Reilly, Michael P T Lunn
POEMS syndrome is a rare and disabling autoinflammatory condition characterised by a typical peripheral neuropathy and the presence of a monoclonal plasma cell disorder. The acronym 'POEMS' represents the complex and multisystem features of the disease, including polyneuropathy, organomegaly, endocrinopathy, a monoclonal plasma cell disorder and skin disease. The diagnosis of POEMS is a significant challenge because of the heterogeneity of clinical presentations and variation of POEMS features. Patients are often misdiagnosed with another cause of inflammatory neuropathy and receive one or more ineffective immunomodulatory medications, resulting in delayed diagnosis and further clinical deterioration before a diagnosis is made...
March 6, 2018: Practical Neurology
Mikhail M Kostik, Evgeny N Suspitsin, Marina N Guseva, Anastasia S Levina, Anastasia Y Kazantseva, Anna P Sokolenko, Evgeny N Imyanitov
NLRP12-related autoinflammatory disease (NLRP12-AID) is an exceptionally rare autosomal dominant disorder caused by germline mutations in NLRP12 gene. Very few patients with NLRP12-AD have been identified worldwide; therefore, there is a scarcity of data on phenotypic presentation of this syndrome. Here we provide evidence that NLRP12-AID may have clinical manifestations characteristic for primary immune deficiencies (PID). 246 children with periodic fever (PF) of unknown origin were subjects to the next generation sequencing (NGS) analysis; 213 of these patients had signs of primary immunodeficiency (PID) manifested by recurrent infections, while 33 kids had isolated PF...
March 2, 2018: Rheumatology International
Maria Zerkaoui, Fatima Zahra Laarabi, Yousra Ajhoun, Bouchra Chkirate, Abdelaziz Sefiani
BACKGROUND: Familial Mediterranean fever is an autoinflammatory disease of unknown etiology, characterized clinically by recurrent attacks of sudden-onset fever with arthralgia and/or thoracoabdominal pain and pathogenetically by autosomal recessive inheritance due to a mutation in the MEFV gene. Behçet's disease is an inflammatory disease characterized by recurrent oral and genital aphthous ulcerations, uveitis, and skin lesions. Preliminarily, our literature review suggested that patients with familial Mediterranean fever who also have Behçet's disease have only a single mutated familial Mediterranean fever gene...
March 1, 2018: Journal of Medical Case Reports
Hui Fang, Shuai Shao, Man Jiang, Erle Dang, Shengxian Shen, Jieyu Zhang, Pei Qiao, Caixia Li, Gang Wang
Bullous pemphigoid is an autoimmune inflammatory disorder characterised by the presence of autoantibodies against bullous pemphigoid autoantigens, leading to dermal-epidermal separation with consequent blister formation. However, whether and how the components of blister fluid exacerbate the progression of bullous pemphigoid is unclear. Exosomes are nanometre-sized vesicles released from cells into the body fluid, where they can transmit signals throughout the body. In the present study, we isolated and characterised exosomes from the blister fluids of patients with bullous pemphigoid, evaluated their proinflammatory role, and identified the underlying molecular mechanisms...
February 22, 2018: Journal of Pathology
Stephanie R Harrison, Thomas Scambler, Lylia Oubussad, Chi Wong, Miriam Wittmann, Michael F McDermott, Sinisa Savic
Tumor necrosis factor (TNF)-receptor-associated periodic fever syndrome (TRAPS) is a rare monogenic autoinflammatory disorder characterized by mutations in the TNFRSF1A gene, causing TNF-receptor 1 (TNFR1) misfolding, increased cellular stress, activation of the unfolded protein response (UPR), and hyperresponsiveness to lipopolysaccharide (LPS). Both microRNA (miR)-146a and miR-155 provide negative feedback for LPS-toll-like receptor 2/4 signaling and cytokine production, through regulation of nuclear factor kappa B (NF-κB)...
2018: Frontiers in Immunology
Fawaz Awad, Eman Assrawi, Camille Louvrier, Claire Jumeau, Sophie Georgin-Lavialle, Gilles Grateau, Serge Amselem, Irina Giurgea, Sonia-Athina Karabina
Inflammasomes are intracellular multiprotein signaling complexes, mainly present in myeloid cells. They commonly assemble around a cytoplasmic receptor of the nucleotide-binding leucine-rich repeat containing receptor (NLR) family, although other cytoplasmic receptors like pyrin have been shown to form inflammasomes. The nucleation of the multiprotein scaffolding platform occurs upon detection of a microbial, a danger or a homeostasis pattern by the receptor that will, most commonly, associate with the adaptor protein ASC (apoptosis-associated speck-like protein containing a CARD) through homotypic domain interactions resulting in recruitment of procaspase-1...
February 18, 2018: Pharmacology & Therapeutics
Fatma Yazılıtaş, Özlem Aydoğ, Sare Gülfem Özlü, Evrim Kargın Çakıcı, Tülin Güngör, Fehime Kara Eroğlu, Gökçe Gür, Mehmet Bülbül
Familial Mediterranean fever (FMF), the most common hereditary autoinflammatory disorder is characterized by recurrent episodes of fever, serositis, arthritis. The major long-term result is amyloidosis. Colchicine remains the principle of the treatment; it not only prevents the acute attacks but also prevents the long-term complications such as amyloidosis; 5-10% of the patients are unresponsive to treatment. Recently new therapeutic options as anti-interleukin 1 agents are successfully used for the patients who do not respond to colchicine treatment...
February 15, 2018: Rheumatology International
Hacer Orsdemir Hortu, Emin Karaca, Betul Sozeri, Nesrin Gulez, Balahan Makay, Cumhur Gunduz, Tahir Atik, Ismihan Merve Tekin, Sevket Erbil Unsal, Cogulu Ozgur
Familial Mediterranean fever (FMF) is an inherited autoinflammatory disorder that can result in attacks with accompanying recurrent episodes of fever, serositis, and skin rash. MiRNAs are demonstrated to be associated with a number of other diseases; however, no comprehensive study has revealed its association with FMF disease. The aim is to investigate the role of microRNAs in FMF. We included 51 patients with genetically diagnosed FMF who had clinical symptoms and 49 healthy volunteers. Fifteen miRNAs that were found to be associated with autoinflammatory diseases and have a part in immune response were evaluated...
February 13, 2018: Clinical Rheumatology
Hanna Bonnekoh, Jörg Scheffel, Naotomo Kambe, Karoline Krause
The concept of autoinflammation was proposed to define a new class of immune disorders categorized by self-directed inflammation that is driven via activation of innate immune pathways. Within innate immunity, inflammasomes serve as intracellular signaling platforms to endogenous danger molecules and pathogens. Their key function is the cleavage of pro-interleukin-1β (pro-IL-1β) into its active form to promote inflammation and programmed cell death. A growing number of inflammasome sensors were described, among which NLR family pyrin domain containing 3 (NLRP3) is the best-studied sensor...
March 2018: Immunological Reviews
Allen D DeSena, Thuy Do, Grant S Schulert
BACKGROUND: Autoinflammatory disorders are distinguished by seemingly random episodes of systemic hyperinflammation, driven in particular by IL-1. Recent pre-clinical work has shown a key role for IL-1 in epilepsy in animal models, and therapies for autoinflammation including IL-1 blockade are proposed for refractory epilepsy. CASE PRESENTATION: Here, we report an adolescent female with signs of persistent systemic inflammation and epilepsy unresponsive to multiple anti-epileptic drugs (AED)...
February 9, 2018: Journal of Neuroinflammation
Masashi Akiyama, Takuya Takeichi, John A McGrath, Kazumitsu Sugiura
Classifying inflammatory skin diseases is challenging, especially for the expanding group of disorders triggered by genetic factors resulting in hyperactivated innate immunity that result in overlapping patterns of dermal and epidermal inflammation with hyperkeratosis. For such conditions, the umbrella term "autoinflammatory keratinization diseases" (AIKD) has been proposed. AIKD encompasses diseases with mixed pathomechanisms of autoinflammation and autoimmunity, and includes IL-36 receptor antagonist (IL-36Ra)-related pustulosis, CARD14-mediated pustular psoriasis, pityriasis rubra pilaris (PRP) type V, and familial keratosis lichenoides chronica (KLC)...
February 1, 2018: Journal of Dermatological Science
Kathryn B Manheimer, Felix Richter, Lisa J Edelmann, Sunita L D'Souza, Lisong Shi, Yufeng Shen, Jason Homsy, Marko T Boskovski, Angela C Tai, Joshua Gorham, Christopher Yasso, Elizabeth Goldmuntz, Martina Brueckner, Richard P Lifton, Wendy K Chung, Christine E Seidman, J G Seidman, Bruce D Gelb
Mosaicism due to somatic mutations can cause multiple diseases including cancer, developmental and overgrowth syndromes, neurodevelopmental disorders, autoinflammatory diseases, and atrial fibrillation. With the increased use of next generation sequencing technology, multiple tools have been developed to identify low-frequency variants, specifically from matched tumor-normal tissues in cancer studies. To investigate whether mosaic variants are implicated in congenital heart disease (CHD), we developed a pipeline using the cancer somatic variant caller MuTect to identify mosaic variants in whole-exome sequencing (WES) data from a cohort of parent/affected child trios (n = 715) and a cohort of healthy individuals (n = 416)...
February 7, 2018: Human Genetics
Hachung Chung, Jorg J A Calis, Xianfang Wu, Tony Sun, Yingpu Yu, Stephanie L Sarbanes, Viet Loan Dao Thi, Abigail R Shilvock, H-Heinrich Hoffmann, Brad R Rosenberg, Charles M Rice
Type I interferon (IFN) is produced when host sensors detect foreign nucleic acids, but how sensors differentiate self from nonself nucleic acids, such as double-stranded RNA (dsRNA), is incompletely understood. Mutations in ADAR1, an adenosine-to-inosine editing enzyme of dsRNA, cause Aicardi-Goutières syndrome, an autoinflammatory disorder associated with spontaneous interferon production and neurologic sequelae. We generated ADAR1 knockout human cells to explore ADAR1 substrates and function. ADAR1 primarily edited Alu elements in RNA polymerase II (pol II)-transcribed mRNAs, but not putative pol III-transcribed Alus...
January 12, 2018: Cell
H Bachelez
Patients with pustular psoriasis or related pustular diseases may have genetic abnormalities impairing the function of key players of the innate skin immune system. Recently, identification of these abnormalities has changed the paradigm of several of these diseases. These include generalized pustular psoriasis, palmoplantar pustular psoriasis and acrodermatitis continua of Hallopeau, and also drug-induced acute exanthematous generalized pustular eruption. Identified mutations in IL36RN, CARD14 and AP1S3 in different groups of patients lead to enhanced inflammatory cascade in several cellular subtypes including keratinocytes, and to the recruitment and activation of neutrophils and macrophages...
January 15, 2018: British Journal of Dermatology
M Schmalzing, M Aringer, M Bornhäuser, J Atta
Myelodysplastic syndromes (MDS) represent a heterogeneous group of clonal hematopoietic stem cell disorders. They are characterized by inefficient hematopoiesis leading to peripheral cytopenia of one or more lineages and a variable risk of transformation into acute myeloid leukemia. They may either arise de novo as well as following exposition to environmental toxins, previous radiotherapy or chemotherapy or in the context of autoinflammatory diseases and related therapy. Characteristic cytogenetic abnormalities, along with the numbers of hematopoietic lineages affected and bone marrow blasts, enable an assessment of the risk of leukemic transformation...
October 2017: Zeitschrift Für Rheumatologie
Eric S Weiss, Charlotte Girard-Guyonvarc'h, Dirk Holzinger, Adriana A de Jesus, Zeshan Tariq, Jennifer Picarsic, Eduardo J Schiffrin, Dirk Foell, Alexei A Grom, Sandra Ammann, Stephan Ehl, Tomoaki Hoshino, Raphaela Goldbach-Mansky, Cem Gabay, Scott W Canna
Hemophagocytic Lymphohistiocytosis (HLH) and Macrophage Activation Syndrome (MAS) are life-threatening hyperferritinemic systemic inflammatory disorders. Though profound cytotoxic impairment causes familial HLH (fHLH), the mechanisms driving non-fHLH and MAS are largely unknown. MAS occurs in patients with suspected rheumatic disease, but the mechanistic basis for its distinction is unclear. Recently, a syndrome of recurrent MAS with infantile enterocolitis caused by NLRC4 inflammasome hyperactivity highlighted the potential importance of Interleukin (IL)-18...
January 11, 2018: Blood
Andrea Taddio, Giovanna Ferrara, Antonella Insalaco, Manuela Pardeo, Massimo Gregori, Martina Finetti, Serena Pastore, Alberto Tommasini, Alessandro Ventura, Marco Gattorno
BACKGROUND: Chronic Non-Bacterial Osteomyelitis (CNO) is an inflammatory disorder that primarily affects children. Although underestimated, its incidence is rare. For these reasons, no diagnostic and no therapeutic guidelines exist. The manuscript wants to give some suggestions on how to deal with these patients in the every-day clinical practice. MAIN BODY: CNO is characterized by insidious onset of bone pain with local swelling. Systemic symptoms such as fever, skin involvement and arthritis may be sometimes present...
December 29, 2017: Pediatric Rheumatology Online Journal
Sigrun Ruth Hofmann, Fanny Böttger, Ursula Range, Christian Lück, Henner Morbach, Hermann Joseph Girschick, Meinolf Suttorp, Christian Michael Hedrich
Objectives: Chronic recurrent multifocal osteomyelitis (CRMO), the most severe form of chronic nonbacterial osteomyelitis (CNO), is an autoinflammatory bone disorder. In the absence of diagnostic criteria or biomarkers, CNO/CRMO remains a diagnosis of exclusion. The aim of this study was to identify biomarkers for diagnosing multifocal disease (CRMO). Study design: Sera from 71 pediatric CRMO patients, 11 patients with osteoarticular infections, 62 patients with juvenile idiopathic arthritis (JIA), 7 patients with para-infectious or reactive arthritis, and 43 patients with acute leukemia or lymphoma, as well as 59 healthy individuals were collected...
2017: Frontiers in Pediatrics
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