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https://www.readbyqxmd.com/read/29626294/routine-immunohistochemical-staining-in-membranous-nephropathy-in-situ-detection-of-phospholipase-a2-receptor-and-thrombospondin-type-1-containing-7a-domain
#1
Vincenzo L'Imperio, Federico Pieruzzi, Renato Alberto Sinico, Manuela Nebuloni, Antonio Granata, Andrew Smith, Antonella Radice, Fabio Pagni
BACKGROUND: Membranous nephropathy (MN) can be idiopathic (iMN) or manifest as a result of systemic underlying conditions as a secondary epiphenomenon. For the prognostic and predictive consequences of this discrimination, the routine use of reliable markers is crucial. This large MN series aimed to evaluate the routine and standardized immunohistochemical (IHC) employment of a panel of 3 biomarkers-phospholipase A2 receptor (PLA2R), thrombospondin type-1 domain-containing 7A (THSD7A), and immunoglobulin (Ig)G4-in the differential diagnosis of MN forms, contributing to the validation of the technique and the correct interpretation of reproducible patterns of reactivity...
April 6, 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/29608910/pre-clinical-and-translational-pharmacology-of-a-human-interleukin-22-igg-fusion-protein-for-potential-treatment-of-infectious-or-inflammatory-diseases
#2
Eric G Stefanich, Julie Rae, Siddharth Sukumaran, Jeff Lutman, Annemarie Lekkerkerker, Wenjun Ouyang, Xiaoting Wang, Donna Lee, Dimitry M Danilenko, Lauri Diehl, Kelly M Loyet, Ann Herman
Interleukin (IL)-22 plays protective roles in infections and in inflammatory diseases that have been linked to its meditation of innate immunity via multiple mechanisms. IL-22 binds specifically to its heterodimeric receptor, which is expressed on a variety of epithelial tissues. UTTR1147A is a recombinant fusion protein that links the human cytokine IL-22 with the Fc portion of human immunoglobulin (Ig) G4. Here, we report extensive in vitro and in vivo nonclinical studies that were conducted to characterize the pharmacological activity of UTTR1147A...
March 30, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29465558/analysis-of-clinical-characteristics-and-treatment-of-immunoglobulin-g4-associated-cholangitis-a-retrospective-cohort-study-of-39-iac-patients
#3
Jianchun Xiao, Peiran Xu, Binglu Li, Tao Hong, Wei Liu, Xiaodong He, Chaoji Zheng, Yupei Zhao
Immunoglobulin (Ig)G4-associated cholangitis (IAC) is one of the common organ manifestations of IgG4-related systemic disease (ISD). IAC and autoimmune pancreatitis (AIP) may mimic sclerosing cholangitis, cholangiocarcinoma, or pancreatic carcinoma. Diagnosis is based on a combination of clinical, biochemical, radiological, and histological findings.To study the clinical presentation of and treatment strategy for IAC, we reviewed clinical, serologic, and imaging characteristics, as well as treatment response, in 39 patients with IAC...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390345/a-case-of-immunoglobulin-g4-related-lung-disease-with-bilateral-diffuse-infiltration-a-case-report
#4
Ailing Liu, Qianwen Zhang, Bo Liu, Ning Xu, Aijun Li
RATIONALE: Immunoglobulin (Ig) G4-related disease (IgG4-RD) is a rare and chronic progressive autoimmune disease. It is a novel clinical entity characterized by elevated serum IgG4 concentration and tissue infiltration by IgG4 plasma cells. IgG4-related lung disease (IgG4-RLD) has been described as interstitial pneumonia and inflammatory pseudotumor, with various abnormal radiographic patterns. We report a case of IgG4-related lung disease with bilateral diffuse infiltration. PATIENT CONCERNS: A 65-year-old woman was admitted to our hospital because of cough, sputum, and fever...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29297990/video-assisted-thoracoscopic-surgery-can-help-enable-the-complete-resection-of-a-mediastinal-tumor-caused-by-immunoglobulin-g4-related-disease-and-avoid-the-need-for-postoperative-medication-a-case-report
#5
Tsuyoshi Uchida, Hirochika Matsubara, Satoshi Nagasaka, Satsuki Kina, Tomofumi Ichihara, Hiroyasu Matsuoka, Hiroyuki Nakajima
Immunoglobulin (Ig) G4-related disease has various clinical signs and symptoms, and steroidal therapy with corticosteroids has been found to be effective for treatment. Few cases of IgG4-related disease associated with paravertebral tumor have been reported, and there have been no reports on complete resection of such a tumor. Here, we report a case of IgG4-related disease associated with a paravertebral tumor that was successfully resected without the need for postoperative medication. An 84-year-old woman was admitted to our hospital with a paravertebral tumor...
January 3, 2018: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/29222587/gastrointestinal-manifestation-of-immunoglobulin-g4-related-disease-clarification-through-a-multicenter-survey
#6
Kenji Notohara, Terumi Kamisawa, Kazushige Uchida, Yoh Zen, Mitsuhiro Kawano, Satomi Kasashima, Yasuharu Sato, Masahiro Shiokawa, Takeshi Uehara, Hajime Yoshifuji, Hiroko Hayashi, Koichi Inoue, Keisuke Iwasaki, Hiroo Kawano, Hiroyuki Matsubayashi, Yukitoshi Moritani, Katsuhiko Murakawa, Yoshio Oka, Masatoshi Tateno, Kazuichi Okazaki, Tsutomu Chiba
BACKGROUND: Several reports on immunoglobulin (Ig)G4-related disease (IgG4-RD) with gastrointestinal involvement (IgG4-related gastrointestinal disease; IgG4-GID) have been published, although this entity has not been fully established clinicopathologically. Thus, we carried out a multicenter survey. METHODS: Patients with possible IgG4-GID who underwent resection were collected. Histologic slides were reevaluated, and eight cases with diffuse lymphoplasmacytic infiltration but without numerous neutrophils, granulations or epithelioid granulomas were further analyzed...
December 8, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/29072949/igg4-related-disease-a-reminder-for-practicing-pathologists
#7
REVIEW
Steven C Weindorf, John Karl Frederiksen
IgG4-related disease (IgG4-RD) is a systemic autoimmune fibroinflammatory disease that produces sclerotic, tumefactive masses containing dense lymphoplasmacytic infiltrates rich in immunoglobulin (Ig) G4+ plasma cells. Initially characterized as a form of autoimmune pancreatitis, the distinctive histopathology of IgG4-RD has now been described in almost every organ system. However, because the clinical manifestations of IgG4-RD are diverse and nonspecific, the disease may go unsuspected until a biopsy or resection specimen is obtained to diagnose a presumed malignancy...
November 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28980311/frequent-immunoglobulin-g4-expression-in-a-common-variant-of-primary-cutaneous-marginal-zone-b-cell-lymphoma
#8
Jing Ru Sun, Lin Nong, Xiao Qing Liu, Ping Tu, Yang Wang
Immunoglobulin (Ig)G4 expression was recently observed in a proportion of primary cutaneous marginal zone B-cell lymphoma (PCMZL) with plasmacytic differentiation. IgG4-related disease is characterised by polyclonal lymphoplasmacytic infiltration with IgG4 expression, storiform fibrosis and obliterative phlebitis in histopathology. Here we report three cases of common variants of PCMZL with predominant and varied IgG4 expression, suggesting there is an underlying clonal progression between these two entities...
October 4, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28922375/elevated-igg4-serum-levels-in-patients-with-cystic-fibrosis
#9
Axelle Clerc, Quitterie Reynaud, Stéphane Durupt, Colette Chapuis-Cellier, Raphaële Nové-Josserand, Isabelle Durieu, Jean Christophe Lega
OBJECTIVE: Serum immunoglobulin (Ig) G4 elevation has been associated with several pathological conditions other than IgG4-related disease (IgG4-RD). In cystic fibrosis (CF), an elevation of specific IgG4 has been associated with colonization and infection by Pseudomonas aeruginosa. IgG4 elevation may be a marker of chronic infection or inflammatory stimulation. The aim of this study was to explore the prevalence of elevated IgG4 levels in CF and its correlation with the major clinical and microbiological features found in CF patients...
2017: PloS One
https://www.readbyqxmd.com/read/28905689/igg4-related-cholangiopathy-and-its-mimickers-a-case-report-and-review-highlighting-the-importance-of-early-diagnosis
#10
Kyle Geary, Cemal Yazici, Anita Seibold, Grace Guzman
Immunoglobulin (Ig) G4 (IgG4)-related disease is a recently described clinical entity that can involve multiple organs. It is an autoimmune disorder characterized by a dense lymphoplasmacytic infiltrate, storiform fibrosis, and obliterative phlebitis. A key distinguishing factor is its dramatic response to steroid therapy. Although best described in cases of autoimmune pancreatitis, IgG4-related disease has also been implicated in patients with cholangitis and is now commonly referred to as IgG4-related cholangiopathy...
April 2018: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28807307/significance-of-anti-carla-salivary-iga-antibody-in-first-grazing-season-cattle-naturally-infected-with-gastrointestinal-nematodes
#11
Aurélie Merlin, Richard Shaw, Alain Chauvin, Nathalie Bareille, Christophe Chartier
A carbohydrate larval surface antigen (CarLA) present on infective larvae of all trichostrongylid nematodes is a target antigen for host immunoglobulins (Ig). Levels of anti-CarLA salivary IgA antibody (CarLA-IgA) have been shown to be correlated to the level of protective immunity to GIN in sheep and deer but no information is available in cattle. The first objective of this study was to assess the pattern of CarLA-IgA response in 7 groups (G1-G7) of first grazing season cattle (FGSC) naturally infected with gastrointestinal nematodes...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28668244/prolonged-effect-of-allergen-sublingual-immunotherapy-for-house-dust-mites-in-elderly-patients
#12
Andrzej Bozek, Liwia Starczewska-Dymek, Jerzy Jarzab
BACKGROUND: The prolonged effect of allergen immunotherapy is unknown, especially in older patients. OBJECTIVE: To analyze the 3-year effect of sublingual allergen-specific immunotherapy (SLIT) to house dust mites in elderly patients with allergic rhinitis. METHODS: Forty-seven elderly patients (65.78 ± 4.89 years old) underwent SLIT to house dust mites and were monitored for 3 years and compared with a placebo group. SLIT was performed with the use of oral Staloral 300 SR Der p and Der f 50/50% extract (Stallergens Greer, London, United Kingdom) or placebo...
July 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28549475/kimura-s-disease-affecting-the-axillary-lymph-nodes-a-case-report
#13
Kenji Kuroda, Shinichiro Kashiwagi, Hitoshi Teraoka, Haruhito Kinoshita, Mikio Nanbara, Eiji Noda, Takaaki Chikugo, Kosei Hirakawa, Masaichi Ohira
BACKGROUND: Kimura's disease (KD; eosinophilic granuloma of soft tissue) is an inflammatory granulomatous disorder of unknown cause with eosinophilic infiltration that occurs mainly in soft tissue. KD occurs mainly in the head and neck, but development in the axillary region is very rare. CASE PRESENTATION: A 74-year-old Japanese woman was evaluated for a mass that she noted in the left axillary region. On physical examination, there was a palpable, thumb-sized, hard, elastic, freely movable mass in the left axilla...
May 26, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28434701/upregulated-interleukins-il-6-il-10-and-il-13-in-immunoglobulin-g4-related-aortic-aneurysm-patients
#14
Satomi Kasashima, Atsuhiro Kawashima, Yoh Zen, Satoru Ozaki, Fuminori Kasashima, Masamitsu Endo, Yasushi Matsumoto, Kengo Kawakami
OBJECTIVE: Immunoglobulin (Ig) G4-related aortic aneurysms (IgG4-AAs) are a special aortic aneurysm among IgG4-related diseases (IgG4-RDs), which are inflammatory and fibrous conditions characterized by tumorous swelling of affected organs and high serum IgG4 concentrations. Recently, IgG4-RD pathogenesis was shown to be associated with T-helper-2 (Th2) and regulatory T (Treg) dominant cytokine production, such as interleukin (IL)-4, IL-10, and IL-13. IL-6 is a key proinflammatory cytokine contributing to lymphocyte and plasmacyte maturation and to atherosclerosis and aneurysm development...
April 20, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28382562/biomarkers-to-predict-prognosis-and-response-to-checkpoint-inhibitors
#15
REVIEW
Takeshi Yuasa, Hitoshi Masuda, Shinya Yamamoto, Noboru Numao, Junji Yonese
Nivolumab is a fully human immunoglobulin (Ig) G4 antibody that selectively inhibits the programmed death 1 (PD-1) immune checkpoint molecule, and has recently been launched for the treatment of renal cell cancer (RCC) in Japan. Based on its promising anti-tumor efficacy and manageable safety profile demonstrated in the phase III Checkmate 025 trial, nivolumab therapy is rapidly being introduced in metastatic RCC clinical practice. The phase Ia study of atezolizumab, which is a humanized anti-PD-ligand 1 (PD-L1) monoclonal IgG1 antibody, also demonstrated excellent treatment results...
August 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28284351/is-musk-myasthenia-gravis-linked-to-igg4-related-disease
#16
Pooja Raibagkar, Judith A Ferry, John H Stone
Immunoglobulin (Ig) G4-related disease (IgG4-RD) is an immune-mediated inflammatory condition that affects a wide variety of sites, including the nervous system, where it can involve the meninges or the pituitary gland, and cause perineural mass lesions. A large subset of acetylcholine receptor antibody (Ab)-negative myasthenia gravis (MG) patients has muscle-specific tyrosine kinase (MuSK) Abs, generally of the IgG4 subclass. There has not been any association found between IgG4-RD and MuSK MG yet. We report the first case of MuSK MG associated with lymphadenopathy with histopathology consistent with IgG4-RD...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28260715/immunoglobulin-g4-related-sclerosing-cholangitis-diagnosed-by-liver-biopsy-a-case-report
#17
REVIEW
Mitsuhiro Furuta, Hiroki Eguchi, Yoshiya Takeda, Kunihiro Fushiki, Takeshi Yasuda, Yuriko Onozawa, Masanobu Katayama, Motoo Tanaka, Tadashi Shigematsu, Masamichi Bamba
Patients with immunoglobulin (Ig) G4-related sclerosing cholangitis typically have a high serum IgG4 level. However, here we describe our experience of a patient with a normal serum IgG4 level for whom the cholangitis was diagnosed by liver biopsy. A 61-year-old male presented with elevated liver enzymes and a normal serum IgG4 level. The hilar, intrahepatic, and upper extrahepatic bile ducts were stenotic, with no evidence of a pancreatic lesion. We therefore performed a liver biopsy to differentiate between cholangiocarcinoma and primary sclerosing cholangitis...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28223204/increases-in-ige-eosinophils-and-mast-cells-can-be-used-in-diagnosis-and-to-predict-relapse-of-igg4-related-disease
#18
Emma L Culver, Ross Sadler, Adrian C Bateman, Mateusz Makuch, Tamsin Cargill, Berne Ferry, Rob Aalberse, Eleanor Barnes, Theo Rispens
BACKGROUND & AIMS: IgG subclass 4-related disease (IgG4-RD) is characterized by increased serum levels of IgG4 and infiltration of biliary, pancreatic, and other tissues by IgG4-positive plasma cells. We assessed the prevalence of allergy and/or atopy, serum, and tissue IgE antibodies, and blood and tissue eosinophils in patients with IgG4-RD. We investigated the association between serum IgE and diagnosis and relapse of this disease. METHODS: We performed a prospective study of 48 patients with IgG4-RD, 42 patients with an increased serum level of IgG4 with other inflammatory and autoimmune conditions (disease control subjects), and 51 healthy individuals (healthy control subjects) recruited from Oxford, United Kingdom from March 2010 through March 2014, and followed for a median of 41 months (range, 3-73 months)...
September 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28151793/igg4-expression-in-primary-cutaneous-marginal-zone-lymphoma-a-multicenter-study
#19
Aieska De Souza, Judith A Ferry, Daniel R Burghart, Marianne Tinguely, Amrita Goyal, Lyn M Duncan, Heinz Kutzner, Werner Kempf
BACKGROUND: Primary cutaneous marginal zone lymphoma (PCMZL) is the second most common B-cell lymphoma of the skin. A recent study has demonstrated a strikingly high prevalence of immunoglobulin (Ig)G4 expression in PCMZL with plasmacytic differentiation. OBJECTIVE: The objective was to investigate the incidence of IgG4 expression in PCMZL, and its correlation with clinical and immunophenotypic features. MATERIALS AND METHODS: Multicenter study that utilized immunohistochemistry and in-situ hybridization to evaluate the expression of IgG4, Ig light (κ and λ), and heavy chains (IgM, IgG), and the ratio of T (CD3+) and B (CD20+) cells in biopsy specimens from 30 patients with PCMZL and to correlate these findings with the clinical features...
February 1, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28105357/immunoglobulin-g4-mediated-sclerosing-cholangitis-as-a-risk-factor-for-cholangiocarcinoma-a-case-report
#20
Karin E Koopman, Elisabeth Bloemena, Geert Kazemier, Michael Klemt-Kropp
Immunoglobulin (Ig)G4-mediated disease is a systemic autoimmune disease, which occasionally presents solely as sclerosing cholangitis (SC). IgG4-mediated SC is challenging to diagnose, as it may mimic cholangiocarcinoma radiologically, and carcinoma cells may produce IgG4. The diagnosis of IgG4-mediated disease is based on histological consensus criteria and response to corticosteroids. In addition to the radiological and histological overlap between IgG4-mediated SC and cholangiocarcinoma, IgG4-mediated SC may be considered as a risk factor for the development of cholangiocarcinoma...
December 2016: Molecular and Clinical Oncology
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