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Neutrophils autoinflammatory

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https://www.readbyqxmd.com/read/28220120/neutrophil-extracellular-traps-and-its-implications-in-inflammation-an-overview
#1
REVIEW
Vidal Delgado-Rizo, Marco A Martínez-Guzmán, Liliana Iñiguez-Gutierrez, Alejandra García-Orozco, Anabell Alvarado-Navarro, Mary Fafutis-Morris
In addition to physical barriers, neutrophils are considered a part of the first line of immune defense. They can be found in the bloodstream, with a lifespan of 6-8 h, and in tissue, where they can last up to 7 days. The mechanisms that neutrophils utilize for host defense are phagocytosis, degranulation, cytokine production, and, the most recently described, neutrophil extracellular trap (NET) production. NETs are DNA structures released due to chromatin decondensation and spreading, and they thus occupy three to five times the volume of condensed chromatin...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28191008/the-nlrp3-and-pyrin-inflammasomes-implications-in-the-pathophysiology-of-autoinflammatory-diseases
#2
REVIEW
Carlos de Torre-Minguela, Pablo Mesa Del Castillo, Pablo Pelegrín
Inflammasomes are multiprotein complexes that critically control different aspects of innate and adaptive immunity. Among them we could highlight the release of pro-inflammatory cytokines that induce and maintain the inflammatory response. Usually, inflammasomes result from oligomerization of a nucleotide-binding domain-like receptor (NLR) after sensing different pathogenic or endogenous sterile dangerous signals; however, other proteins such as absent in melanoma 2, retinoic acid-inducible gene I, or pyrin could also form inflammasome platforms...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28186428/eosinophils-regulate-interferon-alpha-production-in-plasmacytoid-dendritic-cells-stimulated-with-components-of-neutrophil-extracellular-traps
#3
Joanna Skrzeczynska-Moncznik, Katarzyna Zabieglo, Jozef P Bossowski, Oktawia Osiecka, Agnieszka Wlodarczyk, Monika Kapinska-Mrowiecka, Mateusz Kwitniewski, Pawel Majewski, Adam Dubin, Joanna Cichy
Eosinophils constitute an important component of helminth immunity and are not only associated with various allergies but are also linked to autoinflammatory disorders, including the skin disease psoriasis. Here we demonstrate the functional relationship between eosinophils and plasmacytoid dendritic cells (pDCs) as related to skin diseases. We previously showed that pDCs colocalize with neutrophil extracellular traps (NETs) in psoriatic skin. Here we demonstrate that eosinophils are found in psoriatic skin near neutrophils and NETs, suggesting that pDC responses can be regulated by eosinophils...
February 10, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28134085/digenic-mefv-tnfrsf1a-autoinflammatory-syndrome-with-relapsing-aseptic-neutrophilic-meningitis-and-chronic-myelitis
#4
Anne Murarasu, Catherine Dodé, Guillaume Sarrabay, Isabelle Klein, Thomas Papo, Karim Sacré
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January 26, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28094164/disorders-characterized-by-predominant-or-exclusive-dermal-inflammation
#5
Mark R Wick
Some cutaneous inflammatory disorders are typified by a predominant or exclusive localization in the dermis. They can be further subdivided by the principal cell types into lymphocytic, neutrophilic, and eosinophilic infiltrates, and mixtures of them are also seen in a proportion of cases. This review considers such conditions. Included among the lymphoid lesions are viral exanthems, pigmented purpuras, gyrate erythemas, polymorphous light eruption, lupus tumidus, and cutaneous lymphoid hyperplasia. Neutrophilic infiltrates are represented by infections, Sweet syndrome, pyoderma gangrenosum, and hidradenitis suppurativa, as well as a group of so-called "autoinflammatory" dermatitides comprising polymorphonuclear leukocytes...
December 14, 2016: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/27943240/autoinflammation-in-pyoderma-gangrenosum-and-its-syndromic-form-pash
#6
A Marzano, G Damiani, I Ceccherini, E Berti, M Gattorno, M Cugno
BACKGROUND: Pyoderma gangrenosum (PG) is a rare skin disease characterized clinically by ulcers with undermined borders, and histologically by neutrophil-rich infitrates. PG may occur alone, in syndromic forms or associated with systemic diseases as inflammatory bowel diseases and hematological or rheumatological disorders. OBJECTIVES: Although some autoinflammatory diseases present with PG, to date, a specific genetic background related to autoinflammation has not been proven for PG...
December 10, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27905098/are-neutrophilic-dermatoses-autoinflammatory-disorders
#7
REVIEW
T K Satoh, M Mellett, E Contassot, L E French
Neutrophils constitute essential players in inflammatory responses and are the first line of defence against harmful stimuli. However, dysregulation of neutrophil homeostasis can result in excessive inflammation and subsequent tissue damage. Neutrophilic dermatoses are a spectrum of inflammatory disorders characterized by skin lesions resulting from a neutrophil-rich inflammatory infiltrate in the absence of infection. The exact molecular pathophysiology of neutrophilic dermatoses has long been poorly understood...
November 30, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27796411/-pyoderma-gangrenosum-and-sweet-s-syndrome-cutaneous-manifestations-of-autoinflammatory-disorders
#8
B Meier, J-T Maul, L E French
Pyoderma gangrenosum and Sweet's syndrome are rare diseases that belong to the group of neutrophilic dermatoses and share several common characteristics. Although the two disorders differ clinically from each other, both diseases show pronounced dermal infiltration of neutrophils without evidence of primary vasculitis and respond well to immunosuppressive drugs. In addition, both diseases are often associated with other systemic and hematological disorders. Recent findings show that the neutrophil dermatoses can be considered as cutaneous manifestations of autoinflammation, demonstrating an interesting new aspect in the development of the diseases and additional therapeutic avenues...
December 2016: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/27755121/vasculitis-in-the-autoinflammatory-diseases
#9
Hagit Peleg, Eldad Ben-Chetrit
PURPOSE OF REVIEW: This article addresses the prevalence and relationship between autoinflammatory diseases and vasculitis. RECENT FINDINGS: Autoimmune diseases (AIDs) are a group of syndromes characterized by episodes of unprovoked inflammation due to dysregulation of the innate immune system. Despite the common occurrence of rashes and other skin lesions in these diseases, vasculitis is reported in only a few. On the other hand, neutrophilic dermatoses are more prevalent...
January 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/27723901/neutrophil-extracellular-traps-in-health-and-disease
#10
Paul Hasler, Stavros Giaglis, Sinuhe Hahn
Polymorphonuclear neutrophil granulocytes are the first responders of the immune system to threats by invading microorganisms. In the traditional view, they combat the intruders by phagocytosis and externalisation of granules containing lytic and microbicidal factors. A dozen years ago, this concept was expanded by the observation that neutrophils may react to bacteria by extruding their nuclear chromosomal DNA with attached nuclear and cytoplasmic constituents to form extracellular reticular structures. Since they trapped and immobilised the microbes, they were designated neutrophil extracellular traps (NETs), and their ensuing cell death NETosis...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27678529/insights-from-mendelian-interferonopathies-comparison-of-candle-savi-with-ags-monogenic-lupus
#11
REVIEW
Hanna Kim, Gina A Montealegre Sanchez, Raphaela Goldbach-Mansky
Autoinflammatory disorders are sterile inflammatory conditions characterized by episodes of early-onset fever and disease-specific patterns of organ inflammation. Recently, the discoveries of monogenic disorders with strong type I interferon (IFN) signatures caused by mutations in proteasome degradation and cytoplasmic RNA and DNA sensing pathways suggest a pathogenic role of IFNs in causing autoinflammatory phenotypes. The IFN response gene signature (IGS) has been associated with systemic lupus erythematosus (SLE) and other autoimmune diseases...
October 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/27609179/monogenic-polyarteritis-the-lesson-of-ada2-deficiency
#12
REVIEW
Roberta Caorsi, Federica Penco, Francesca Schena, Marco Gattorno
The deficiency of Adenosine Deaminase 2 (DADA2) is a new autoinflammatory disease characterised by an early onset vasculopathy with livedoid skin rash associated with systemic manifestations, CNS involvement and mild immunodeficiency.This condition is secondary to autosomal recessive mutations of CECR1 (Cat Eye Syndrome Chromosome Region 1) gene, mapped to chromosome 22q11.1, that encodes for the enzymatic protein adenosine deaminase 2 (ADA2). By now 19 different mutations in CECR1 gene have been detected...
September 8, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27604144/the-role-of-interleukin-1-in-inflammatory-and-malignant-human-skin-diseases-and-the-rationale-for-targeting-interleukin-1-alpha
#13
REVIEW
Mayassa J Bou-Dargham, Zahraa I Khamis, Armand B Cognetta, Qing-Xiang Amy Sang
Inflammation plays a major role in the induction and progression of several skin diseases. Overexpression of the major epidermal proinflammatory cytokines interleukin (IL) 1 alpha (IL-1α) and 1 beta (IL-1β) is positively correlated with symptom exacerbation and disease progression in psoriasis, atopic dermatitis, neutrophilic dermatoses, skin phototoxicity, and skin cancer. IL-1β and the interleukin-1 receptor I (IL-1RI) have been used as a therapeutic target for some autoinflammatory skin diseases; yet, their system-wide effects limit their clinical usage...
January 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/27559085/biallelic-hypomorphic-mutations-in-a-linear-deubiquitinase-define-otulipenia-an-early-onset-autoinflammatory-disease
#14
Qing Zhou, Xiaomin Yu, Erkan Demirkaya, Natalie Deuitch, Deborah Stone, Wanxia Li Tsai, Hye Sun Kuehn, Hongying Wang, Dan Yang, Yong Hwan Park, Amanda K Ombrello, Mary Blake, Tina Romeo, Elaine F Remmers, Jae Jin Chae, James C Mullikin, Ferhat Güzel, Joshua D Milner, Manfred Boehm, Sergio D Rosenzweig, Massimo Gadina, Steven B Welch, Seza Özen, Rezan Topaloglu, Mario Abinun, Daniel L Kastner, Ivona Aksentijevich
Systemic autoinflammatory diseases are caused by mutations in genes that function in innate immunity. Here, we report an autoinflammatory disease caused by loss-of-function mutations in OTULIN (FAM105B), encoding a deubiquitinase with linear linkage specificity. We identified two missense and one frameshift mutations in one Pakistani and two Turkish families with four affected patients. Patients presented with neonatal-onset fever, neutrophilic dermatitis/panniculitis, and failure to thrive, but without obvious primary immunodeficiency...
September 6, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27515780/recurrent-lipoatrophic-panniculitis-of-children
#15
A Torrelo, L Noguera-Morel, A Hernández-Martín, D Clemente, J M Barja, L Buzón, D Azorín, A A de Jesús, J C López-Robledillo, I Colmenero, H Kutzner, R Goldbach-Mansky, L Requena
BACKGROUND: Recurrent panniculitis in children with lipoatrophy has been loosely described and reported under different names, but has never been systematically evaluated by immunohistochemical stains. OBJECTIVE: To depict the profile of children with recurrent idiopathic panniculitis. METHODS: Study of clinical, histopathological and immunohistochemical features in five cases with recurrent idiopathic panniculitis. RESULTS: Five children with repeated attacks of painful subcutaneous nodules in association with fever, malaise and abdominal pain or arthralgia, with subsequent lipoatrophy were reviewed...
August 12, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27446090/inhibitors-of-serine-proteases-in-regulating-the-production-and-function-of-neutrophil-extracellular-traps
#16
REVIEW
Pawel Majewski, Monika Majchrzak-Gorecka, Beata Grygier, Joanna Skrzeczynska-Moncznik, Oktawia Osiecka, Joanna Cichy
Neutrophil extracellular traps (NETs), DNA webs released into the extracellular environment by activated neutrophils, are thought to play a key role in the entrapment and eradication of microbes. However, NETs are highly cytotoxic and a likely source of autoantigens, suggesting that NET release is tightly regulated. NET formation involves the activity of neutrophil elastase (NE), which cleaves histones, leading to chromatin decondensation. We and others have recently demonstrated that inhibitors of NE, such as secretory leukocyte protease inhibitor (SLPI) and SerpinB1, restrict NET production in vitro and in vivo...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27405029/chronic-nonbacterial-osteomyelitis-with-fdg-avid-rib-destruction-and-extensive-lymphadenopathy
#17
Yiyan Liu
Chronic nonbacterial osteomyelitis is a rare entity of unknown etiology and most likely an autoinflammatory disease. A 45-year-old man complained of a growing painful mass of the right chest wall. FDG PET/CT demonstrated a large destructive rib lesion with intense uptake and extensive FDG avid lymphadenopathy, which mimicked a malignant or metastatic disease. Both CT guided core-needle and excisional biopsies showed reactive/regenerative/granulomatous changes coupled with focal neutrophils and marrow atrophy, consistent with chronic osteomyelitis...
September 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27358310/schnitzler-syndrome-without-a-monoclonal-gammopathy-a-case-report
#18
Michelle Urbanski, Karen Holfeld, Ardyth Milne, Mariam Abbas
BACKGROUND: Schnitzler syndrome (SS) is a rare autoinflammatory disorder characterized by a recurrent urticarial rash and a monoclonal immunoglobulin M gammopathy, as well as 2 of the following minor criteria: recurrent fever (>38°C), objective signs of abnormal bone remodeling, elevated C-reactive protein level or leukocytosis, and a neutrophilic infiltrate on skin biopsy. Alternatively, a monoclonal immunoglobulin G gammopathy may be present along with 3 minor criteria for diagnosis...
June 29, 2016: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27351923/induction-of-myeloid-derived-suppressor-cells-in-cryopyrin-associated-periodic-syndromes
#19
Marlene Ballbach, Tobias Hall, Alina Brand, Davide Neri, Anurag Singh, Iris Schaefer, Eva Herrmann, Sandra Hansmann, Rupert Handgretinger, Jasmin Kuemmerle-Deschner, Dominik Hartl, Nikolaus Rieber
Cryopyrin-associated periodic syndromes (CAPS) are caused by mutations in the NLRP3 gene leading to overproduction of IL-1β and other NLRP3 inflammasome products. Myeloid-derived suppressor cells (MDSCs) represent a novel innate immune cell subset capable of suppressing T-cell responses. As inflammasome products were previously found to induce MDSCs, we hypothesized that NLRP3 inflammasome-dependent factors induce the generation of MDSCs in CAPS. We studied neutrophilic MDSCs, their clinical relevance, and MDSC-inducing factors in a unique cohort of CAPS patients under anti-IL-1 therapy...
2016: Journal of Innate Immunity
https://www.readbyqxmd.com/read/27333294/secretory-activity-of-neutrophils-correlates-with-genotype-in-familial-mediterranean-fever
#20
Faekah Gohar, Banu Orak, Tilmann Kallinich, Marion Jeske, Mareike Lieber, Horst von Bernuth, Arnd Giese, Elisabeth Weissbarth-Riedel, Johannes-Peter Haas, Frank Dressler, Dirk Holzinger, Peter Lohse, Ulrich Neudorf, Elke Lainka, Claas Hinze, Katja Masjosthusmann, Christoph Kessel, Toni Weinhage, Dirk Foell, Helmut Wittkowski
Objectives Familial Mediterranean Fever (FMF) is an autoinflammatory disorder caused by pyrin-encoding MEFV gene mutations. Patients present with recurrent but self-limiting episodes of acute inflammation and often have persistent subclinical inflammation. The pathophysiology is only partially understood, but neutrophil overactivation is a hallmark of the disease. S100A12 is a neutrophil-derived pro-inflammatory danger signal that is strongly elevated in active FMF. We characterised neutrophilic secretory activity in vitro and investigated the association of S100A12 with disease activity and genotype in FMF patients...
June 22, 2016: Arthritis & Rheumatology
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