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https://www.readbyqxmd.com/read/28643686/-pachymeningitis-associated-with-igg4-disease
#1
Dan Zimelewicz Oberman, Carolina Cuello Oderiz, Matteo Baccanelli, Silvia Christiansen, María Cristina Zurrú
Hypertrophic pachymeningitis is an infrequent disorder. It can be idiopathic or secondary to infectious, autoimmune or neoplastic disease. The recently described 〈IgG4-related disease〉 could be the origin of many cases considered cryptogenic. We present the case of a 60-year-old man, with a history of headache and episcleritis in both eyes, with partial response to corticoid therapy. The brain MR study with gadolinium showed enhancement and thickening of the dura mater, extending from lateral wall of left temporal and occipital lobes to ipsilateral tentorium...
2017: Medicina
https://www.readbyqxmd.com/read/28643505/a-case-of-igg4-related-pseudotumor-affecting-ethmoid-orbit-and-anterior-skull-base
#2
Davide Soloperto, Cristoforo Fabbris, Flavia DI Maro, Daniele Marchioni
No abstract text is available yet for this article.
June 22, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28643106/-new-and-old-aspects-of-retroperitoneal-fibrosis
#3
REVIEW
A S Brandt, N M Dreger, E Müller, S Kukuk, S Roth
Retroperitoneal fibrosis (RPF) is an uncommon chronic inflammatory disease of the rear abdomen and it is commonly associated with the complication of uni- or bilateral hydronephrosis. Despite the rarity of this disease, multiple publications concerning etiology, diagnosis, therapy monitoring and both medical and surgical therapy have been published in recent years. Recent research has focused on asbestos exposure as a possible risk factor, the meaning of IgG4-associated RPF, measuring disease activity using different radiological and nuclear medicine procedures, and new approaches to medical therapy...
June 22, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28639844/diagnostic-sensitivity-of-cutoff-values-of-igg4-positive-plasma-cell-number-and-igg4-positive-cd138-positive-cell-ratio-in-typical-multiple-lesions-of-patients-with-igg4-related-disease
#4
Ichiro Mizushima, Kazunori Yamada, Kenichi Harada, Shoko Matsui, Takako Saeki, Satoru Kondo, Masayuki Takahira, Yuko Waseda, Yasuhito Hamaguchi, Hiroshi Fujii, Masakazu Yamagishi, Mitsuhiro Kawano
OBJECTIVES: This study aimed to investigate the diagnostic sensitivity of the cutoff values of IgG4-positive plasma cell (PC) number and IgG4-positive/CD138-positive cell ratio proposed by the International consensus statement (ICS) on the pathology of IgG4-related disease (IgG4-RD) in typical multiple lesions of patients with IgG4-RD. METHODS: We evaluated IgG4-positive PC number and IgG4-positive/CD138-positive cell ratio in 39 samples from 18 IgG4-RD patients having more than two typical lesions of IgG4-RD...
June 22, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28638447/serum-igg4-igg-ratio-predicts-recurrence-of-patients-with-hepatocellular-carcinoma-after-curative-resection
#5
Jiong Wu, Xiao-Lu Ma, Lu Tian, Chun-Yan Zhang, Bei-Li Wang, Yu-Yi Hu, Xing-Hui Gao, Yan Zhou, Min-Na Shen, Yin-Fei Peng, Bai-Shen Pan, Jian Zhou, Jia Fan, Xin-Rong Yang, Wei Guo
Aim: IgG4 is associated with a Th1-to-Th2 switch, which plays a vital role in metastasis, in patients with malignances; thus, we aimed to investigate its clinical significance in predicting hepatocellular carcinoma (HCC) recurrence in the present study. Methods: The correlation between serum IgG4:IgG ratio and recurrence was analyzed in a cohort of 195 patients undergoing curative resection in 2012. Another 100 patients were analyzed in a prospective independent cohort during 2012-2013 to validate the value of serum IgG4...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28634480/fc-galactosylation-of-human-immunoglobulin-gamma-isotypes-improves-c1q-binding-and-enhances-complement-dependent-cytotoxicity
#6
Benjamin Peschke, Christian W Keller, Patrick Weber, Isaak Quast, Jan D Lünemann
Binding of the complement component C1q to the CH2 domain of antigen-bound immunoglobulin gamma (IgG) activates the classical complement pathway and depends on its close proximity to Fc fragments of neighboring antibodies. IgG subclasses contain a highly conserved asparagine 297 (N)-linked biantennary glycan within their CH2 domains, the core structure of which can be extended with terminal galactose and sialic acid residues. To investigate whether Fc-glycosylation regulates effector functions of human IgG subclasses, we cloned the antigen-binding region of the CD20-specific monoclonal antibody rituximab into IgG isotype expression vectors...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28634283/phase-ib-study-of-utomilumab-pf-05082566-a-4-1bb-cd137-agonist-in-combination-with-pembrolizumab-mk-3475-in-patients-with-advanced-solid-tumors
#7
Anthony W Tolcher, Mario Sznol, Siwen Hu-Lieskovan, Kyriakos P Papadopoulos, Amita Patnaik, Drew Rasco, Donna Di Gravio, Bo Huang, Dhiraj Gambhire, Ying Chen, Aron Thall, Nuzhat Pathan, Emmett V Schmidt, Laura Q M Chow
Purpose:  This phase Ib study (NCT02179918) evaluated the safety, antitumor activity, pharmacokinetics, and pharmacodynamics of utomilumab, a fully human IgG2 mAb agonist of the T-cell costimulatory receptor 4-1BB/CD137 in combination with the humanized, PD-1-blocking IgG4 mAb pembrolizumab in patients with advanced solid tumors. <p>Experimental Design:  Utomilumab (0.45-5.0 mg/kg) and pembrolizumab (2 mg/kg) were administered intravenously every 3 weeks. Utomilumab dose escalation was conducted using the time-to-event-continual reassessment method...
June 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28626192/increased-18-f-fdg-uptake-in-igg4-related-coronary-periarterial-pseudotumor
#8
Yumiko Kanzaki, Hideaki Morita, Nobukazu Ishizaka
No abstract text is available yet for this article.
2017: Internal Medicine
https://www.readbyqxmd.com/read/28626183/desquamative-interstitial-pneumonia-complicated-with-igg4-related-lung-disease
#9
Hideaki Yamakawa, Yoshihiro Suido, Shinko Sadoyama, Yumie Yamanaka, Satoshi Ikeda, Hideya Kitamura, Tomohisa Baba, Koji Okudela, Tamiko Takemura, Takashi Ogura
As an idiopathic interstitial pneumonia, desquamative interstitial pneumonia (DIP) is an uncommon form of interstitial lung disease and is considered to be a smoking- or dust inhalation-related interstitial pneumonia in the majority of cases. However, the details regarding immunoglobulin G4 (IgG4)-related lung disease remain unclear and controversial. We herein report the first case of DIP complicated with IgG4-related lung disease. Even if a patient has a smoking history, we emphasize the importance of exploring the association between DIP and IgG4-related lung disease to clarify the pathogenesis of these two disorders...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28625638/development-of-psoriatic-arthritis-during-nivolumab-therapy-for-metastatic-non-small-cell-lung-cancer-clinical-outcome-analysis-and-review-of-the-literature
#10
Juan Ruiz-Bañobre, Eva Pérez-Pampín, Jorge García-González, Antonio Gómez-Caamaño, Francisco Javier Barón-Duarte, Rafael López-López, Francisca Vázquez-Rivera
Lung cancer is the leading cause of cancer-related death worldwide. The most common type, non-small cell lung cancer (NSCLC), is further divided into two main types, squamous cell and non-squamous cell (which includes adenocarcinoma). Nivolumab, a fully human IgG4 programmed death-1 immune checkpoint inhibitor antibody, has shown not only an overall survival advantage when compared to docetaxel, but also a relatively good side-effect profile among patients with previously treated advanced squamous and non-squamous NSCLC...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28621822/cdna-microarray-analysis-identifies-nr4a2-as-a-novel-molecule-involved-in-the-pathogenesis-of-sj%C3%A3-gren-s-syndrome
#11
Hiroyuki Takahashi, Hiroto Tsuboi, Hiromitsu Asashima, Tomoya Hirota, Yuya Kondo, Masafumi Moriyama, Isao Matsumoto, Seiji Nakamura, Takayuki Sumida
OBJECTIVE: To examine genes expressed specifically in labial salivary glands (LSGs) of patients with Sjögren's syndrome (SS) in comparison with those of patients with IgG4-related disease (IgG4-RD) and to identify the genes involved in the pathogenesis of SS. METHODS: Gene expression in LSGs of SS patients, IgG4-RD patients and healthy controls (HC) was analyzed by cDNA microarray. Quantitative PCR (qPCR) was used to validate the up-regulation of differentially expressed genes (DEGs) in SS...
June 16, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28617941/association-of-igg4-and-free-light-chain-with-idiopathic-pleural-effusion
#12
Yoriyuki Murata, Keisuke Aoe, Yuka Mimura-Kimura, Tomoyuki Murakami, Keiji Oishi, Tsuneo Matsumoto, Hiroshi Ueoka, Kazuto Matsunaga, Masafumi Yano, Yusuke Mimura
The cause of pleural effusion remains uncertain in approximately 15% of patients despite exhaustive evaluation. As recently described IgG4-related disease is a fibroinflammatory disorder that can affect various organs including the lungs, we investigate whether idiopathic pleural effusion includes IgG4-associated etiology. Between 2000 and 2012, we collected 830 pleural fluid samples and reviewed 35 patients with pleural effusions undiagnosed after pleural biopsy at Yamaguchi-Ube Medical Center. Importantly, IgG4 immunostaining revealed infiltration of IgG4-positive plasma cells in the pleura of 12 patients (34%, IgG4+ group)...
June 15, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28615123/quantification-of-equine-immunoglobulin-a-in-serum-and-secretions-by-a-fluorescent-bead-based-assay
#13
Christiane L Schnabel, Susanna Babasyan, Heather Freer, Bettina Wagner
Only few quantitative reports exist about the concentrations and induction of immunoglobulin A (IgA) in mucosal secretions of horses. Despite this, it is widely assumed that IgA is the predominant immunoglobulin on mucosal surfaces in the horse. Here, two new monoclonal antibodies (mAbs) against equine IgA, clones 84-1 and 161-1, were developed and characterized in detail. Both IgA mAbs specifically bound monomeric and dimeric equine IgA in different applications, such as Western blots and fluorescent bead-based assays...
June 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28614225/immunoglobulin-g4-related-disease-preceded-by-lung-involvement-a-case-report
#14
Miki Abo, Hazuki Takato, Satoshi Watanabe, Kazumasa Kase, Tamami Sakai, Hayato Koba, Johsuke Hara, Takashi Sone, Hideharu Kimura, Kazuo Kasahara
RATIONALE: Immunoglobulin G4-related disease (IgG4-RD) is a systemic condition involving various organs and vessels including the pancreas, bile duct, salivary glands, periorbital tissues, kidneys, lungs, lymph nodes, meninges, and aorta. Recently, some cases of IgG4-RD have been reported, in which only pulmonary lesions were present. It is not known whether IgG4-RD can be diagnosed on the basis of pulmonary lesions only, because increases in serum IgG4 levels and infiltration of IgG4-positive plasma cells into the lung tissue also occur in other inflammatory conditions...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28614220/rituximab-was-used-to-treat-recurrent-igg4-related-hypophysitis-with-ophthalmopathy-as-the-initial-presentation-a-case-report-and-literature-review
#15
Wei-Jun Gu, Qian Zhang, Jian Zhu, Jie Li, Shi-Hui Wei, Yi-Ming Mu
RATIONALE: Immunoglobulin G4 (IgG4)-related hypophysitis is a type of IgG4-related disease (IgG4-RD), which is characterized by plasma cells infiltration in the pituitary causing functional changes and (or) space-occupying effect in the pituitary. IgG4-related hypophysitis is sensitive to hormone therapy in most patients, but recurrence is very likely. PATIENT CONCERNS: Here, we report a 57-year-old male patient with bilateral eye redness as the initial presentation...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28613137/measurement-of-the-igg2-response-to-pneumococcal-capsular-polysaccharides-may-identify-an-antibody-deficiency-in-individuals-referred-for-immunological-investigation
#16
Antony Parker, Juan Irure Ventura, Dawn Sims, Ainara Echeverría de Carlos, Ricardo Gómez de la Torre, Lourdes Tricas Aizpún, J Gonzalo Ocejo-Vinyals, Marcos López-Hoyos, Gregg Wallis, Stephen Harding
IgG2 is the most efficient subclass for providing protection against pneumococcal pathogens. We hypothesised that some individuals may be unable to mount an effective pneumococcal capsular polysaccharide (PCP) IgG2 response despite having a normal PCP IgG concentration (PCP IgG2 deficient). The median pre-vaccination PCP IgG2 concentration was significantly lower in individuals referred for immunological investigation compared to healthy controls (2.8 mg/L range, 95% CI 1.1-88 vs 29.5mg/L, 95% CI 13.5-90, p=0...
June 14, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28612666/igg4-related-sclerosing-disease-of-the-breast-in-a-male-patient
#17
Taisia Vitkovski, Galina S Marder, Dominic A Filardi, Ekta Gupta, Frank Breuer
IgG4-related sclerosing disease of the breast is a rare entity with 10 reports in the literature. We report the first case in a male patient. A 48-year-old male presented with 4-week history of palpable right upper outer quadrant breast mass associated with skin puckering. He reported a family history of breast cancer in his aunt. Ultrasound and mammography showed a spiculated 2.5-cm mass associated with skin retraction with extension to the pectoralis muscle. Ultrasound-guided core biopsy was performed. The findings were interpreted as acute and chronic inflammatory process...
June 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28612430/igg-subclasses-of-fviii-inhibitors-in-an-argentine-cohort-of-severe-hemophilia-a-patients-analysis-by-flow-cytometry
#18
M B Irigoyen, L Primiani, M Felippo, M Candela, M M E de Bracco, N V Galassi
INTRODUCTION: FVIII inhibitors consist of a polyclonal population of antibodies. Previous studies have demonstrated different distribution of IgG subclasses. IgG4 was associated to high level of FVIII inhibitors and failure of immune tolerance induction (ITI) treatment. This study monitored the relative distribution of IgG subclasses of anti-FVIII in patients with severe hemophilia A (SHA). METHODS: Anti-FVIII antibodies were measured employing an immunomethod, developed in our laboratory, that combines flow cytometry (FC) with microspheres coupled (FVIII-m) or not (Control-m) to FVIII...
June 14, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28610663/eculizumab-c5-complexes-express-a-c5a-neoepitope-in-vivo-consequences-for-interpretation-of-patient-complement-analyses
#19
Per H Nilsson, Anub Mathew Thomas, Grethe Bergseth, Alice Gustavsen, Elena B Volokhina, Lambertus P van den Heuvel, Andreas Barratt-Due, Tom E Mollnes
The complement system has obtained renewed clinical focus due to increasing number of patients treated with eculizumab, a monoclonal antibody inhibiting cleavage of C5 into C5a and C5b. The FDA approved indications are paroxysmal nocturnal haemoglobinuria and atypical haemolytic uremic syndrome, but many other diseases are candidates for complement inhibition. It has been postulated that eculizumab does not inhibit C5a formation in vivo, in contrast to what would be expected since it blocks C5 cleavage. We recently revealed that this finding was due to a false positive reaction in a C5a assay...
June 10, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28607901/igg4-related-disease-igg4-rd-presenting-as-a-mass-in-the-carotid-triangle-masquerading-paraganglioma
#20
T Ramadass, V Balaji, S K J Sheba, K S Vali Ahmed, Raees Abdurahiman
IgG4-related disease (IgG4-RD) which is a protein disorder presented as a mass in the right carotid triangle in a 30 year male patient, who underwent battery of tests is described. The radiologist opined the mass as paraganglioma and the spindle shaped character of the mass also suggested neurogenic tumor in differential diagnosis. Reference to vascular surgeon also opined the same, and adviced for incisional biopsy. Histopathology report suggested IgG4-RD and immunochemistry confirmed the final diagnosis...
June 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
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