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https://www.readbyqxmd.com/read/29468680/proinflammatory-role-of-blister-fluid-derived-exosomes-in-bullous-pemphigoid
#1
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
https://www.readbyqxmd.com/read/29447637/crohn-disease-associated-neutrophilic-urticarial-dermatosis-report-and-literature-review-of-neutrophilic-urticarial-dermatosis
#2
Zhe Hou, Brian R Hinds, Philip R Cohen
Neutrophilic urticarial dermatosis (NUD) is a useful diagnostic term for urticarial lesions that are less pruritic and more painful than conventional urticaria. The histopathologic features include neutrophilic infiltrates in the interstitial dermis with a higher density than idiopathic urticaria. NUD has been associated with several systemic conditions, which are predominantly autoimmune and autoinflammatory in nature. A woman with Crohn disease who developed NUD is described. Literature reports of other conditions in which neutrophilic urticarial dermatosis have been observed are also reviewed and summarized...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29426067/neutrophils-in-systemic-onset-juvenile-idiopathic-arthritis-display-sepsis-like-features-which-can-be-reverted-by-il-1-blockade
#3
Nienke M Ter Haar, Tamar Tak, Michal Mokry, Rianne C Scholman, Jenny M Meerding, Wilco de Jager, Anouk Verwoerd, Dirk Foell, Thomas Vogl, Johannes Roth, Pieter H C Leliefeld, Jorg van Loosdregt, Leo Koenderman, Sebastiaan J Vastert, Sytze de Roock
OBJECTIVE: Neutrophils are the most abundant innate immune cells in the blood, however little is known about their role in (acquired) chronic autoinflammatory diseases. We investigated neutrophils in systemic onset Juvenile Idiopathic Arthritis (sJIA), a prototypical multifactorial autoinflammatory disease, characterized by arthritis and severe systemic inflammation. METHODS: We analyzed 50 sJIA patients at disease onset and during remission on recombinant IL-1 receptor antagonist (rIL-1RA, anakinra)...
February 9, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29406827/pyoderma-gangrenosum-a-review-of-pathogenesis-and-treatment
#4
Christine Ahn, Deborah Negus, William Huang
Pyoderma gangrenosum (PG) is a complex neutrophilic dermatosis that can occur as an idiopathic disease, in association with systemic conditions such as inflammatory bowel disease, as part of an inherited inflammatory syndrome. It can be challenging to treat, as it occurs in a wide variety of clinical settings and there is a lack of a standardized treatment approach. The main limitations to treatment have been an incomplete understanding of the pathogenesis. However, recent advances have been made in understanding the pathogenesis of this condition, and PG is now considered an autoinflammatory disease process...
February 6, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29333670/pustular-psoriasis-and-related-pustular-skin-diseases
#5
REVIEW
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
https://www.readbyqxmd.com/read/29326099/interleukin-18-diagnostically-distinguishes-and-pathogenically-promotes-human-and-murine-macrophage-activation-syndrome
#6
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
https://www.readbyqxmd.com/read/29229448/characteristics-and-disease-course-in-a-cohort-of-children-with-pfapa-syndrome-in-the-community-of-madrid-spain
#7
María de Las Mercedes Ibáñez Alcalde, Laura Caldevilla Asenjo, Cristina Calvo Rey, Fernando García-Mon Marañés, Daniel Blázquez Gamero, Jesús Saavedra Lozano, María Luisa Navarro Gómez, Teresa Hernández-Sampelayo Matos, Mar Santos Sebastián
INTRODUCTION: PFAPA syndrome is an autoinflammatory disease whose diagnosis is mainly clinical. Several treatments have been proposed; among them, tonsillectomy could be an effective one. MATERIAL AND METHODS: Retrospective multicenter study. Patients included were diagnosed with PFAPA syndrome, according to the Thomas criteria, in 3 hospitals in Madrid between 2009-2013. RESULTS: Thirty-two cases were included. Median age at onset and at diagnosis were 32 months (IQR 24-44) and 47...
December 8, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/29214791/a-case-of-schnitzler-s-syndrome-without-monoclonal-gammopathy-associated-chronic-urticaria-treated-with-anakinra
#8
Min Joo Ahn, Ji Eun Yu, Jiung Jeong, Da Woon Sim, Young Il Koh
Chronic urticaria may often be associated with interleukin (IL)-1-mediated autoinflammatory disease, which should be suspected if systemic inflammation signs are present. Here, we report a case of Schnitzler's syndrome without monoclonal gammopathy treated successfully with the IL-1 receptor antagonist anakinra. A 69-year-old man suffered from a pruritic urticarial rash for 12 years. It became aggravated episodically and was accompanied by high fever, arthralgia, leukocytosis, and an elevated C-reactive protein and erythrocyte sedimentation rate...
January 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29191346/neutrophilic-dermatoses-kids-are-not-just-little-people
#9
Grace L Lee, Amy Y-Y Chen
Neutrophilic dermatoses are a group of inflammatory skin disorders characterized by an overactive innate immune system with dysregulation of neutrophils without underlying infectious etiology. The major representative conditions discussed are Sweet syndrome; pyoderma gangrenosum; neutrophilic eccrine hidradenitis; palmoplantar eccrine hidradenitis; subcorneal pustular dermatoses; bowel-associated dermatosis arthritis syndrome; and synovitis, acne, pustulosis, hyperostosis, and osteitis. We will also discuss other neutrophilic conditions present almost exclusively in the pediatric population, including congenital erosive and vesicular dermatosis with reticulated supple scarring and the recently described group of autoinflammatory diseases...
November 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/29163546/glucose-6-phosphatase-catalytic-subunit-3-g6pc3-deficiency-associated-with-autoinflammatory-complications
#10
Anoop Mistry, Thomas Scambler, David Parry, Mark Wood, Gabriela Barcenas-Morales, Clive Carter, Rainer Doffinger, Sinisa Savic
G6PC3 deficiency typically causes severe congenital neutropenia, associated with susceptibility to infections, cardiac and urogenital abnormalities. However, here we describe two boys of Pakistani origin who were found to have G6PC3 deficiency due to c.130 C>T mutation, but who have clinical phenotypes that are typical for a systemic autoinflammatory syndrome. The index case presented with combination of unexplained fevers, severe mucosal ulcers, abdominal symptoms, and inflammatory arthritis. He eventually fully responded to anti-TNF therapy...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29148036/function-and-mechanism-of-the-pyrin-inflammasome
#11
REVIEW
Rosalie Heilig, Petr Broz
Pyrin, encoded by the MEFV gene, is an intracellular pattern recognition receptor that assembles inflammasome complexes in response to pathogen infections. Mutations in the MEFV gene have been linked to autoinflammatory diseases such as Familial Mediterranean Fever (FMF) or pyrin-associated autoinflammation with neutrophilic dermatosis (PAAND). Recent insights have now revealed how pyrin is activated during infection, providing a molecular basis for the understanding of such disease-causing mutations in pyrin...
November 16, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/29034454/successful-treatment-of-sapho-syndrome-with-apremilast
#12
S Adamo, J Nilsson, A Krebs, U Steiner, A Cozzio, L E French, A G A Kolios
Synovitis, acne, pustulosis, hyperostosis and osteitis (SAPHO) syndrome is a rare disease with inflammatory osteoarticular and skin involvement. The pathogenesis of SAPHO syndrome remains unclear, but evidence suggests it may be an autoinflammatory disease triggered upon exposure to infectious agents in genetically predisposed individuals. Induction of the IL-23/Th17 axis as well as neutrophil activation seem to play a key role, and therapies targeting these immunological pathways, including TNF-inhibitors, ustekinumab, secukinumab and the IL-1 inhibitor anakinra are potential treatment options that need further investigation...
October 16, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28835462/a-novel-pyrin-associated-autoinflammation-with-neutrophilic-dermatosis-mutation-further-defines-14-3-3-binding-of-pyrin-and-distinction-to-familial-mediterranean-fever
#13
Fiona Moghaddas, Rafael Llamas, Dominic De Nardo, Helios Martinez-Banaclocha, Juan J Martinez-Garcia, Pablo Mesa-Del-Castillo, Paul J Baker, Vanessa Gargallo, Anna Mensa-Vilaro, Scott Canna, Ian P Wicks, Pablo Pelegrin, Juan I Arostegui, Seth L Masters
OBJECTIVE: Pyrin-Associated Autoinflammation with Neutrophilic Dermatosis (PAAND) is a recently described monogenic autoinflammatory disease. The causal p.S242R MEFV mutation disrupts a binding motif of the regulatory 14-3-3 proteins within pyrin. Here, we investigate a family with clinical features consistent with PAAND in whom the novel p.E244K MEFV mutation, located in the +2 site of the 14-3-3 binding motif in pyrin, has been found. METHODS: Multiplex cytokine analyses were performed on p...
December 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28715916/drug-management-of-neutrophilic-dermatoses
#14
REVIEW
Simone Garcovich, Clara De Simone, Emilio Berti, Angelo Valerio Marzano
Neutrophilic dermatoses are a heterogenous group of chronic, cutaneous inflammatory conditions characterized by the accumulation of neutrophils in the skin and by systemic inflammation. Neutrophilic dermatoses can be idiopathic or associated with other inflammatory or systemic diseases, including the group of the hereditary, autoinflammatory syndromes. Clinical management is challenging, due to limited clinical evidence and lack of clinical practice guidelines. Areas covered: This review provides an overview of current therapeutic management of the three prototypical neutrophilic dermatoses, aseptic pustulosis of the folds, Sweet syndrome and pyoderma gangrenosum...
October 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28688013/a-comprehensive-review-of-neutrophilic-diseases
#15
REVIEW
Angelo V Marzano, Alessandro Borghi, Daniel Wallach, Massimo Cugno
Neutrophilic dermatoses are a group of conditions characterized by the accumulation of neutrophils in the skin and clinically presenting with polymorphic cutaneous lesions, including pustules, bullae, abscesses, papules, nodules, plaques and ulcers. In these disorders, the possible involvement of almost any organ system has lead to coin the term 'neutrophilic diseases'. Neutrophilic diseases have close clinicopathological similarities with the autoinflammatory diseases, which present with recurrent episodes of inflammation in the affected organs in the absence of infection, allergy and frank autoimmunity...
July 7, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28668093/serum-cytokine-profile-in-pediatric-sweet-s-syndrome-a-case-report
#16
Yoshihiko Takano, Hisanori Fujino, Akihiro Yachie, Shin-Ichi Sumimoto
BACKGROUND: Sweet's syndrome is characterized by fever, leukocytosis, and tender erythematous papules or nodules. It is a rare condition, particularly in the pediatric population, and has recently been proposed to be an autoinflammatory disease that occurs due to innate immune system dysfunction, involving several cytokines, which causes abnormally increased inflammation. To the best of our knowledge, no report has documented the cytokine profile in a pediatric patient with Sweet's syndrome...
July 2, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28588495/a-brief-history-of-il-1-and-il-1-ra-in-rheumatology
#17
Jean-Michel Dayer, Francesca Oliviero, Leonardo Punzi
The history of what, in 1979, was called interleukin-1 (IL-1), orchestrator of leukocyte inter-communication, began many years before then, initially by the observation of fever induction via the endogenous pyrogen (EP) (1974) and then in rheumatology on the role in tissue destruction in rheumatoid diseases via the induction of collagenase and PGE2 in human synovial cells by a mononuclear cell factor (MCF) (1977). Since then, the family has exploded to presently 11 members as well as many membrane-bound and soluble receptor forms...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28588486/potential-of-il-1-il-18-and-inflammasome-inhibition-for-the-treatment-of-inflammatory-skin-diseases
#18
REVIEW
Gabriele Fenini, Emmanuel Contassot, Lars E French
In 2002, intracellular protein complexes known as the inflammasomes were discovered and were shown to have a crucial role in the sensing of intracellular pathogen- and danger-associated molecular patterns (PAMPs and DAMPs). Activation of the inflammasomes results in the processing and subsequent secretion of the pro-inflammatory cytokines IL-1β and IL-18. Several autoinflammatory disorders such as cryopyrin-associated periodic syndromes and Familial Mediterranean Fever have been associated with mutations of genes encoding inflammasome components...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28528454/new-insights-into-pericarditis-mechanisms-of-injury-and-therapeutic-targets
#19
REVIEW
Bo Xu, Serge C Harb, Paul C Cremer
PURPOSE OF REVIEW: This review article aims to provide a contemporary insight into the pathophysiological mechanisms of and therapeutic targets for pericarditis, drawing distinction between autoinflammatory and autoimmune pericarditis. RECENT FINDINGS: Recent research has focused on the distinction between autoinflammatory and autoimmune pericarditis. In autoinflammatory pericarditis, viruses can activate the sensor molecule of the inflammasome, which results in downstream release of cytokines, such as interleukin-1, that recruit neutrophils and macrophages to the site of injury...
July 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28500690/tumour-necrosis-factor-receptor-associated-periodic-syndrome-mimicking-chronic-spontaneous-urticaria
#20
LETTER
S Aurich, J C Simon, R Treudler
No abstract text is available yet for this article.
May 13, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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