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Immunoadsorption

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https://www.readbyqxmd.com/read/28163240/cardiomyopathy-an-approach-to-the-autoimmune-background
#1
REVIEW
Niels-Peter Becker, Johannes Müller, Gerd Wallukat, Ingolf Schimke
Autoimmunity is increasingly accepted as the origin or amplifier of various diseases. In contrast to classic autoantibodies (AABs), which induce immune responses resulting in the destruction of the affected tissue, an additional class of AABs is directed against G-protein-coupled receptors (GPCRs; GPCR-AABs). GPCR-AABs functionally affect their related GPCRs for activation of receptor mediated signal cascades. Diseases which are characterized by the presence of GPCR-AABs with evidence for disease-specific pathogenic activity could be named "functional autoantibody disease"...
February 2, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28148778/lipid-rafts-of-mouse-liver-contain-nonextended-and-extended-acetylcholinesterase-variants-along-with-m3-muscarinic-receptors
#2
María Fernanda Montenegro, Juan Cabezas-Herrera, F Javier Campoy, Encarnación Muñoz-Delgado, Cecilio J Vidal
The observation of acetylcholinesterase (AChE) type H (AChEH), which is the predominant AChE variant in visceral organs and immune cells, in lipid rafts of muscle supports functional reasons for the raft targeting of glypiated AChEH The search for these reasons revealed that liver AChE activity is mostly confined to rafts and that the liver is able to make N-extended AChE variants and target them to rafts. These results prompted us to test whether AChE and muscarinic receptors existed in the same raft. Isolation of flotillin-2-rich raft fractions by their buoyancy in sucrose gradients, followed by immunoadsorption and matrix-assisted laser desorption ionization-time of flight-mass spectrometry application, gave the following results: 1) most hepatic AChE activity emanates from AChE-H mRNA, and its product, glypiated AChEH, accumulates in rafts; 2) N-extended N-AChE readthrough variant, nonglypiated N-AChEH, and N-AChE tailed variant were all identified in liver rafts; and 3) M3 AChRs were observed in rafts, and coprecipitation of raft-confined N-AChE and M3 receptors by using anti-M3 antibodies showed that enzyme and receptor reside in the same raft unit...
February 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28110970/-plasma-exchange-in-nephrology-indications-and-technique
#3
Christophe Ridel, Sébastien Kissling, Laurent Mesnard, Alexandre Hertig, Éric Rondeau
Plasma exchange is a non-selective apheresis technique that can be performed by filtration or centrifugation allowing rapid purification of high molecular weight pathogens. An immunosuppressive treatment is generally associated to reduce the rebound effect of the purified substance. Substitution solutes such as human albumin and macromolecules are needed to compensate for plasma extraction. Compensation by viro-attenuated plasma is reserved solely for the treatment of thrombotic microangiopathies or when there is a risk of bleeding, because this product is very allergenic and expensive...
January 16, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28003505/bortezomib-for-treatment-of-therapy-refractory-anti-nmda-receptor-encephalitis
#4
Franziska Scheibe, Harald Prüss, Annerose M Mengel, Siegfried Kohler, Astrid Nümann, Martin Köhnlein, Klemens Ruprecht, Tobias Alexander, Falk Hiepe, Andreas Meisel
OBJECTIVE: We assessed the therapeutic potential of the plasma-cell-depleting proteasome inhibitor bortezomib in severe and therapy-refractory cases of anti-NMDA receptor (anti-NMDAR) encephalitis. METHODS: Five severely affected patients with anti-NMDAR encephalitis with delayed treatment response or resistance to standard immunosuppressive and B-cell-depleting drugs (corticosteroids, IV immunoglobulins, plasma exchange, immunoadsorption, rituximab, cyclophosphamide) who required medical treatment and artificial ventilation on intensive care units were treated with 1-6 cycles of 1...
January 24, 2017: Neurology
https://www.readbyqxmd.com/read/27890513/therapeutic-effect-of-immunoadsorption-and-subsequent-immunoglobulin-substitution-in-patients-with-dilated-cardiomyopathy-results-from-the-observational-prospective-bad-berka-registry
#5
Marc-Alexander Ohlow, Michele Brunelli, Matthias Schreiber, Bernward Lauer
BACKGROUND: Elimination of cardiac autoantibodies, frequently detected in patients with dilated cardiomyopathy (DCM), with immunoadsorption (IA) improves functional capacity and left ventricular (LV) function. This study aimed to prospectively address this issue in a large cohort of unselected patients. METHODS: Consecutive patients undergoing IA followed by IgG substitution were included. Clinical and echocardiographic parameters were assessed at baseline (BL) and 12-month follow-up (FU)...
February 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/27855355/seizure-control-and-cognitive-improvement-via-immunotherapy-in-late-onset-epilepsy-patients-with-paraneoplastic-versus-gad65-autoantibody-associated-limbic-encephalitis
#6
N Hansen, G Widman, J-A Witt, J Wagner, A J Becker, C E Elger, C Helmstaedter
OBJECTIVE: To determine the efficacy of immunotherapy in limbic encephalitis (LE) associated epilepsies with autoantibodies against intracellular antigens in the forms of paraneoplastic autoantibodies versus glutamic acid decarboxylase 65 (GAD)-autoantibodies. METHODS: Eleven paraneoplastic-antibodies+ and eleven age- and gender-matched GAD-antibodies+ patients with LE were compared regarding EEG, seizure frequency, MRI volumetry of the brain, and cognition. All patients received immunotherapy with corticosteroids add-on to antiepileptic therapy...
December 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27807630/-role-of-plasmapheresis-and-immunoadsorption-in-salvage-therapy-of-rheumatological-diseases
#7
M Boser, J T Kielstein
Many rheumatological diseases are either caused by specific known proteins, such as antibodies or mediated by a plethora of cytokines. Both the unspecific immunosuppressive therapy and the specific action of biologics usually require time to be effective; therefore, extracorporeal forms of treatment are increasingly being employed in severe forms of rheumatological diseases as well as in patients who cannot tolerate pharmacological treatment or where the risk of pharmacological treatment may outweigh the potential benefits...
December 2016: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/27796550/hodgkin-s-lymphoma-associated-with-paraneoplastic-cerebellar-degeneration-in-children-a-case-report-and-review-of-the-literature
#8
Serdal Gungor, Betul Kilic, Mujgan Arslan, Unsal Ozgen, Josep Dalmau
Paraneoplastic cerebellar degeneration (PCD) can occur severely and appear as subacute cerebellar syndrome. PCD may be associated with small cell lung cancer, adenocarcinoma, breast cancer, ovarian carcinoma, and Hodgkin's lymphoma. An 11-year-old male was admitted with acute cerebellar ataxia, dysarthria, and diplopia. Mediastinal conglomerated lymph nodes were depicted in a chest computed tomography (CT) examination, and diagnosis of stage IV Hodgkin's lymphoma was obtained after a lymph node biopsy. The antibodies against Purkinje cells (anti-Tr antibody) were positive immunohistochemically...
October 29, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27795961/the-cxcl10-cxcr3-axis-and-cardiac-inflammation-implications-for-immunotherapy-to-treat-infectious-and-noninfectious-diseases-of-the-heart
#9
REVIEW
Raffaele Altara, Ziad Mallat, George W Booz, Fouad A Zouein
Accumulating evidence reveals involvement of T lymphocytes and adaptive immunity in the chronic inflammation associated with infectious and noninfectious diseases of the heart, including coronary artery disease, Kawasaki disease, myocarditis, dilated cardiomyopathies, Chagas, hypertensive left ventricular (LV) hypertrophy, and nonischemic heart failure. Chemokine CXCL10 is elevated in cardiovascular diseases, along with increased cardiac infiltration of proinflammatory Th1 and cytotoxic T cells. CXCL10 is a chemoattractant for these T cells and polarizing factor for the proinflammatory phenotype...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27788819/safety-and-efficacy-of-immunoadsorption-in-heart-transplantation-program
#10
T Gazdic, I Malek, L Pagacova, A Slavcev, L Voska, M Hegarova, L Hoskova, M Kubanek, J Pirk
BACKGROUND: Antibody-mediated rejection (AMR) is a serious complication of organ transplantation, and its treatment is complex. The aim of this study was to assess immunoadsorption (IA) for treatment-immunized patients before heart transplantation (HTX) and as the first step of AMR treatment after HTX. METHODS: The cohort consisted of 10 patients (8 men, 2 women; age range, 20-57 years). For 3 of these patients, IA was included in the desensitization protocol before HTX; for 7 patients, IA was the first step of the treatment protocol...
October 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27785045/buerger-s-disease-providing-integrated-care
#11
REVIEW
Peter Klein-Weigel, Theresa Sophie Volz, Leonora Zange, Jutta Richter
Buerger's disease, also known as thromboangiitis obliterans (TAO), is a segmental inflammatory disease affecting small- and medium-sized vessels, which is strongly associated with tobacco use. Although the etiology is still unknown, recent studies suggest an immunopathogenesis. Diagnosis is based on clinical and angiomorphologic criteria, including age, history of smoking, clinical presentation with distal extremity ischemia, and the absence of other risk factors for atherosclerosis, autoimmune disease, hypercoagulable states, or embolic disease...
2016: Journal of Multidisciplinary Healthcare
https://www.readbyqxmd.com/read/27773903/efficacy-of-potassium-bromide-in-the-treatment-of-drug-resistant-epilepsy-a-case-of-new-onset-refractory-status-epilepticus
#12
Jun Takei, Ran Takei, Satoshi Nozuma, Keiichi Nakahara, Osamu Watanabe, Hiroshi Takashima
A 40-year-old man presented with a series of generalized tonic-clonic seizures after febrile illness. He developed status epilepticus and required mechanical ventilation with anesthetics. Steroid pulse, intravenous immunoglobulin, and immunoadsorption therapy were administrated, and the status epilepticus improved; however, drug-resistant seizures remained. Despite the use of several antiepileptic drugs, seizures frequently occurred. Additional administration of potassium bromide resulted in significant suppression of seizures...
November 29, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27742269/efficacy-of-single-extended-and-goal-directed-immunoadsorption-in-abo-incompatible-living-related-donor-liver-transplantation
#13
R N Makroo, Soma Agrawal, Mohit Chowdhry, Brinda Kakkar, Uday K Thakur
BACKGROUND: Liver transplantation is one of the solid organs most commonly being transplanted across the world. The indications, affordability and accessibility have grown manifold. To increase the donor pool, inclusion of ABO incompatible liver donors is being considered. To enhance the graft functioning and survival, immunoadsorption apheresis to reduce the ABO hemagglutination titres are on the rise. CASE REPORT: We report three cases ABO incompatible liver transplantation with immunoadsorption protocol...
December 2016: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/27667488/-clinical-features-and-treatment-of-hashimoto-encephalopathy
#14
Yoshimitsu Maki, Hiroshi Takashima
Hashimoto encephalopathy (HE) is characterized by heterogeneous neurological symptoms. HE is diagnosed based on three criteria-the presence of antithyroid antibodies, neurological symptoms from the cerebrum and/or cerebellum, and a positive response to immunotherapy. We clinically analyzed 18 patients (3 men, 15 women; age range, 38-81years) diagnosed with HE in our hospital from May 2013 to January 2016. Eleven patients showed sensory abnormalities such as strong pain, deep muscle pain, dysesthesia, paresthesia, or neuralgia...
September 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/27616206/endomyocardial-proteomic-signature-corresponding-to-the-response-of-patients-with-dilated-cardiomyopathy-to-immunoadsorption-therapy
#15
Gourav Bhardwaj, Marcus Dörr, Praveen Kumar Sappa, Sabine Ameling, Vishnu Dhople, Leif Steil, Karin Klingel, Klaus Empen, Daniel Beug, Uwe Völker, Stephan B Felix, Elke Hammer
: Dilated cardiomyopathy (DCM) is a disease of the myocardium with reduced left ventricular ejection fraction (LVEF). Cardiac autoantibodies (AAbs) play a causal role in the development and progression of DCM. Removal of AAbs using immunoadsorption (IA/IgG) has been shown as a therapeutic option to improve cardiac function. However, the response to therapy differs significantly among patients. The reasons for this variability are not completely understood. Hitherto, no potential biomarker is available to predict improvement of cardiac function after therapy accurately...
September 9, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27604620/immunoadsorption-or-plasma-exchange-in-the-treatment-of-autoimmune-encephalitis-a-pilot-study
#16
Josephine Heine, Lam-Thanh Ly, Ina Lieker, Torsten Slowinski, Carsten Finke, Harald Prüss, Lutz Harms
Therapeutic apheresis has emerged as a major treatment option for autoantibody-associated inflammatory diseases of the nervous system. This includes patients with autoimmune encephalitides caused by antibodies against neuronal proteins. Plasma exchange (PE) and immunoadsorption (IA) constitute two possibilities to eliminate pathogenic antibodies from patients' plasma, but their efficacy and safety has not been prospectively assessed in larger patient groups of autoimmune encephalitides. In a prospective observational case control study, we, therefore, investigated the disease courses and treatment effects of 21 patients with autoimmune encephalitis associated with NMDAR, LGI1, CASPR2, GAD, mGluR5 and Hu antibodies...
December 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27562458/clinical-outcomes-with-abo-antibody-titer-variability-in-a-multicenter-study-of-abo-incompatible-kidney-transplantation-in-the-united-kingdom
#17
Andrew Bentall, A Nicholas R Barnett, Manjit Braitch, Nicos Kessaris, Will McKane, Chas Newstead, Gavin McHaffie, Alison Brown, Sian Griffin, Nizam Mamode, David Briggs, Simon Ball
BACKGROUND: ABO blood group-incompatible kidney transplantation (ABOiKTx) outcomes are good, but complications are more common than in conventional transplantation. Regimens that use extracorporeal antibody removal therapy (EART) and enhanced immunosuppression are guided by titration of ABO blood group antibodies (using hemagglutination [HA] dilution assays), and these assays vary significantly in performance between centers. This study aims to describe the differences in titer measurement and the effect on clinical practice and outcomes...
August 26, 2016: Transfusion
https://www.readbyqxmd.com/read/27540536/treatment-of-large-plasma-volumes-using-specific-immunoadsorption-to-desensitize-abo-incompatible-kidney-transplant-candidates
#18
Lionel Rostaing, Asma Allal, Arnaud Del Bello, Federico Sallusto, Laure Esposito, Nicolas Doumerc, Bénédicte Debiol, Audrey Delas, Xavier Game, Nassim Kamar
BACKGROUND: ABO-incompatible (ABOi) kidney-transplantation has very good long-term results, i.e. similar to those observed for living-kidney ABO-compatible transplantation. This is because patients are desensitized at pretransplant using apheresis and rituximab therapy, with tacrolimus-based immunosuppression. OBJECTIVES: To assess the efficacy of a single, pretransplant (Day -1), specific immunoadsorption session using Glycosorb® columns (anti-A or anti-B; Glycorex Sweden) to treat large volumes of plasma (up to 18 L)...
July 2016: Journal of Nephropathology
https://www.readbyqxmd.com/read/27523076/removal-characteristics-of-immunoadsorption-with-the-immusorba-tr-350-column-using-conventional-and-selective-plasma-separators
#19
Atsushi Ohkubo, Tomokazu Okado, Satoko Miyamoto, Keigo Goto, Motoki Yamamoto, Takuma Maeda, Ayako Itagaki, Hiroshi Seshima, Naoki Kurashima, Eisei Sohara, Shinichi Uchida, Tatemitsu Rai
In Japan, immunoadsorption (IA) is performed using a conventional plasma separator and Immusorba TR-350 column (TR-350) for the treatment of neurological immune diseases. By this method, TR-350 has the limited maximal capacity of the immunoglobulin G (IgG) adsorption, and fibrinogen (Fbg) is reduced remarkably. Evacure EC-4A10 (EC-4A) is a selective plasma separator and the sieving coefficients of IgG and Fbg using EC-4A were 0.5 and 0, respectively. Here, we investigated the removal characteristics of IgG and Fbg in IA by TR-350 using two different plasma membrane separators: conventional plasma separator (PE-IA) and EC-4A (EC-IA)...
August 2016: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27488202/rapid-reduction-of-antibodies-and-improvement-of-disease-activity-by-immunoadsorption-in-chinese-patients-with-severe-systemic-lupus-erythematosus
#20
Jinxian Huang, Guoxiang Song, Zhihua Yin, Weizhen He, Lijun Zhang, Weihong Kong, Zhizhong Ye
This was an exploratory analysis comparing the safety and efficacy of immunoadsorption (IAS) combination therapy in severe systemic lupus erythematosus (SLE) receiving corticosteroid pulse and immunosuppressant treatment. Patients enrolled all had predominant organ involvement including proteinuria, thrombocytopenia, pericardial effusion, and cerebral involvement requiring corticosteroid pulse treatment. Fifty-two patients in study group received IAS plus corticosteroid and cyclophosphamide treatment. Fifty-two patients in non-IAS group received corticosteroid and cyclophosphamide treatment...
September 2016: Clinical Rheumatology
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