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Immunoadsorption

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https://www.readbyqxmd.com/read/28734583/kidney-transplantation-from-hla-incompatible-live-donors-efficiency-and-outcome-of-32-patients-after-desensitisation
#1
Constantino Fernández, María Calvo, Natacha Leite, Andrés López, Tamara Ferreiro, Roi Ribera, Rocío Seijo, Ángel Alonso
Desensitisation is a procedure undergone by the recipient of a kidney transplant from a donor who is cross-match positive. The aim of this study was to present the outcomes from our hospital of kidney transplant recipients from HLA-incompatible live donors after desensitisation. We studied 32 patients aged 46±14 years with a mean fluorescence intensity (MFI) versus class I HLA of 7979±4089 and 6825±4182 MFI versus class II and relative intensity scale (RIS) of 8.9±7.6. The complement-dependent cytotoxicity (CDC) cross-matching test was positive in 18 patients, flow cytometry was positive in 7 patients and donor-specific antibodies (DEA) were detected in 7...
July 19, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28730386/erratum-to-changes-of-myocardial-gene-expression-and-protein-composition-in-patients-with-dilated-cardiomyopathy-after-immunoadsorption-with-subsequent-immunoglobulin-substitution
#2
Sabine Ameling, Gourav Bhardwaj, Elke Hammer, Daniel Beug, Leif Steil, Yvonne Reinke, Kerstin Weitmann, Markus Grube, Christiane Trimpert, Karin Klingel, Reinhard Kandolf, Wolfgang Hoffmann, Matthias Nauck, Marcus Dörr, Klaus Empen, Stephan B Felix, Uwe Völker
No abstract text is available yet for this article.
July 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28692534/blood-neuron-derived-exosomes-as-biomarkers-of-cognitive-impairment-in-hiv
#3
Bing Sun, Pranjali Dalvi, Linda Abadjian, Norina Tang, Lynn Pulliam
OBJECTIVE: To investigate proteins associated with neuronal damage in plasma neuron-derived exosomes (NDE) of HIV-infected subjects as a liquid biomarker for cognitive impairment. METHODS: Plasma NDE were isolated using precipitation and immunoadsorption with antibody to a cell surface specific neuronal marker. Total exosomes and NDE were enumerated, characterized and proteins extracted and targets quantified by ELISA. RESULTS: Plasma NDE from 23 HIV seropositive individuals of which 11 had mild cognitive impairment, and 12 HIV seronegative controls of which 3 had cognitive impairment were isolated...
July 7, 2017: AIDS
https://www.readbyqxmd.com/read/28680648/treating-refractory-post-herpetic-anti-n-methyl-d-aspartate-receptor-encephalitis-with-rituximab
#4
Christine Strippel, Constanze Mönig, Kristin S Golombeck, Andre Dik, Kathrin Bönte, Stjepana Kovac, Andreas Schulte-Mecklenbeck, Heinz Wiendl, Sven G Meuth, Andreas Johnen, Catharina C Gross, Nico Melzer
Herpes simplex virus-1 has been identified as the trigger factor in certain cases of NMDA-receptor autoimmune encephalitis. We report on a 67-year-old female patient, who was severely affected by post-herpetic NMDA-receptor autoimmune encephalitis. Her symptoms did not improve under methylprednisolone pulse therapy and plasma exchange under acyclovir prophylaxis. She received protein A immunoadsorption and a long-term immunosuppression with rituximab. Under treatment, activated T-cells as well as B- and plasma cells decreased in peripheral blood and cerebrospinal fluid, and anti-NMDA-R IgG titers in serum and cerebrospinal fluid declined with near complete cessation of intrathecal autoantibody synthesis...
July 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28664838/treatment-of-antibody-mediated-rejection-of-kidney-grafts-with-bortezomib-and-or-rituximab-compared-to-standard-regimen-experience-of-slovene-national-center
#5
Teja Oblak, Jelka Lindič, Jakob Gubenšek, Radoslav Kveder, Andreja Aleš Rigler, Andrej Škoberne, Željka Večerić Haler, Špela Borštnar, Nuša Avguštin, Rafael Ponikvar, Gregor Mlinšek, Dušan Ferluga, Nika Kojc, Uroš Godnov, Damjan Kovač
BACKGROUND: The aim of our study was to determine outcomes of standard treatment of antibody-mediated rejection (ABMR) of kidney grafts as compared to the addition of bortezomib or rituximab. METHODS: The cohort of this retrospective study included patients treated for ABMR of kidney grafts at our national center in the period of 2005 - 2017, divided into two groups: standard (ST) group treated standardly with plasmapheresis or immunoadsorption, intravenous immunoglobulins, and corticosteroids, and BR group treated with the addition of bortezomib and/or rituximab...
2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28661087/efficacy-of-substance-removal-by-immunoadsorption-with-a-selective-plasma-separator
#6
Norio Hanafusa, Hiroko Yamamoto, Masaki Tamachi, Toshihiro Torato, Satoko Sakurai, Ken Tsuchiya, Kosaku Nitta, Masaomi Nangaku
Immunoadsorption with a tryptophan-conjugated column has a limited capacity and reduces fibrinogen. We speculated that immunoadsorption with a selective plasma separator has higher efficiency in removing immunoglobulins than ordinary immunoadsorption without affecting coagulation factors. This study investigated the efficacy of immunoadsorption with a selective plasma separator in vitro. The sieving coefficients, the pool concentration, and the adsorbed amount were investigated serially with up to 5 L of processed plasma...
June 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28648573/personalized-treatment-with-immunoadsorption-and-intravenous-immunoglobulin-in-a-case-of-severe-rh-alloimmunization-during-pregnancy-unresponsive-to-plasma-exchange
#7
Anna Colpo, Tiziana Tison, Maria Teresa Gervasi, Cinzia Vio, Maria Vicarioto, Giustina De Silvestro, Piero Marson
INTRODUCTION: Despite prophylaxis, a small proportion of RhD-negative women may develop anti-D antibodies after a sensitizing event occurring during pregnancy or delivery of a D-positive baby. Intrauterine transfusion (IUT) is the treatment of choice in case of fetal anemia, but it cannot be performed early during pregnancy. Combined treatment with therapeutic plasma-exchange (TPE) and intravenous immunoglobulin (IVIG) can avoid or delay IUT. Immunoadsorption (IA) could represent a more effective treatment in selected cases...
June 6, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28602810/apheresis-to-treat-systemic-vasculitis
#8
Julie Moussi-Frances, Marion Sallée, Noémie Jourde-Chiche
Apheresis has been used in the treatment of severe systemic vasculitides, in conjunction with immunosuppressive therapies, for over 40 years. The aim is to rapidly remove autoantibodies or circulating immune complexes from the plasma. The two main indications at present are vasculitis associated with antineutrophil cytoplasmic antibodies (ANCAs) manifesting as severe renal involvement and/or intraalveolar hemorrhage and antiglomerular basement membrane disease (Goodpasture syndrome). The ongoing PLEXIVAS randomized controlled trial is assessing plasmapheresis to treat ANCA-associated vasculitis with or without severe renal involvement or intraalveolar hemorrhage...
June 7, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28585408/increased-risk-of-infection-associated-death-with-incompatible-kidney-transplantations
#9
Christian Morath, Martin Zeier, Caner Süsal
In times of organ shortage, transplantation over the blood group A/B and HLA antibody barriers helps increasing the living donor pool in kidney transplantation. Waiting times are reduced while patient survival may be improved. By desensitization, both blood group A/B as well as HLA antibodies are eliminated from the patient's circulation using plasmapheresis, double filtration plasmapheresis or selective or unselective immunoadsorption. In addition, antibody production and posttransplant antibody rebound are prevented by powerful immunosuppression and induction therapy with or without B-cell eliminating anti-CD20 antibody rituximab...
June 6, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28554587/a-novel-method-for-abo-incompatible-heart-transplantation
#10
Alex Robertson, Richard Issitt, Richard Crook, Kenth Gustafsson, Ayad Eddaoudi, Victor Tsang, Michael Burch
BACKGROUND: Since 1996, ABO-incompatible heart transplantation has been undertaken by performing whole-body plasma exchange to remove isohemagglutinins using the cardiopulmonary bypass (CPB) circuit at the time of transplantation. This requires large volumes of donated blood and blood products, causes hemodynamic instability during the exchange transfusion, and limits practical use to small children. We sought to determine the efficacy of anti-A/B immunoadsorption within the CPB circuit on removal of isohemagglutinins in an ex vivo setting before its use clinically...
May 5, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28553052/reusing-immunoadsorption-column-making-the-abo-incompatible-renal-transplant-affordable
#11
P K Jha, A K Tiwari, S K Sethi, V Kher
No abstract text is available yet for this article.
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28553039/baseline-anti-blood-group-antibody-titers-and-their-response-to-desensitization-and-kidney-transplantation
#12
B V Shah, P Rajput, Z A Virani, S Warghade
In recent years, immunological barriers historically considered as absolute contraindications to transplantation are being reevaluated. One such barrier is the ABO blood group incompatibility. With better understanding of immunological mechanisms and effective various regimens for controlling it, ABO-incompatible (ABO-I) kidney transplantation is now being performed with increasing frequency. For good outcome, most important is to achieve and maintain low anti-blood group antibody titers (ABGATs). Twenty-two patients with ABO-I donors have been studied...
May 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28508563/safety-aspects-of-immunoadsorption-in-igg-removal-using-a-single-use-multiple-pass-protein-a-immunoadsorber-ligasorb-clinical-investigation-in-healthy-volunteers
#13
Sven Süfke, Hendrik Lehnert, Ingrid Uhlenbusch-Körwer, Frank Gebauer
Therapeutic apheresis and immunoadsorption are used to deplete efficiently pathogenic autoantibodies in crises in several acute autoimmune driven diseases. This prospective, non-comparative cohort study was conducted at a single study center under standardized conditions in 10 healthy volunteers. Efficient immunoglobulin G (IgG) removal (-86% versus baseline) was achieved after 3 apheresis treatments on 3 consecutive days. The treatments were well tolerated. Safety laboratory parameters did not show unexpected or pathological changes...
May 15, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28485075/a-prospective-study-comparing-tryptophan-immunoadsorption-with-therapeutic-plasma-exchange-for-the-treatment-of-chronic-inflammatory-demyelinating-polyneuropathy
#14
Ina Lieker, Torsten Slowinski, Lutz Harms, Katrin Hahn, Juliane Klehmet
BACKGROUND: Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare paralyzing inflammatory neuropathy with probably autoimmune origin. While plasma exchange (PE) constitutes a first-line treatment option for CIDP, there is only little known about the efficacy and safety of immunoadsorption (IA), a more selective apheresis procedure with assumed better tolerability. METHODS: In this prospective-randomized pilot trial, patients were randomly assigned to receive 6 sessions of PE (n = 10) or IA (n = 10) treating equal plasma volumes...
May 9, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28382424/plasma-exchange-for-the-patients-with-dilated-cardiomyopathy-in-children-is-safe-and-effective-in-improving-both-cardiac-function-and-daily-activities
#15
Takeshi Moriguchi, Keiichi Koizumi, Kenichi Matsuda, Norikazu Harii, Junko Goto, Daiki Harada, Hisanori Sugawara, Minako Hoshiai, Hiroaki Kise, Akiyasu Baba
Autoantibodies against cardiac proteins play an important role in the development of dilated cardiomyopathy (DCM). The efficacy and safety of apheresis such as immunoadsorption (IA) or plasma exchange (PE) to remove such antibodies have been reported in adult DCM patients. However, apheresis for pediatric DCM has not been performed because of technical difficulty due to relatively low blood volume and instability of hemodynamics. As we have experiences of preforming apheresis on hemodynamically unstable children, we have preformed ten courses of PE on seven child DCM patients including both patients in chronic and acute phase to assess the safety and efficacy to PE...
April 5, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28379034/lipoprotein-apheresis-in-the-treatment-of-dyslipidaemia-the-czech-republic-experience
#16
V Bláha, M Bláha, M Lánská, D Solichová, L Kujovská Krčmová, E Havel, P Vyroubal, Z Zadák, P Žák, L Sobotka
In 1984, we started using therapeutic plasmapheresis (plasma exchange) as a method of extracorporeal lipoprotein elimination for the treatment of hypercholesterolemic patients. We evaluated the results of long-term therapy in 14 patients, 8 men and 6 women. The average age was 55.6+/-13.2 (range 28-70), median 59.5 years. 14 patients were diagnosed with familial hypercholesterolemia (FH): 5 homozygous, 9 heterozygous. Ten patients in the group were treated using immunoadsorption lipoprotein apheresis and 4 using hemorheopheresis...
April 5, 2017: Physiological Research
https://www.readbyqxmd.com/read/28331448/antibody-mediated-rejection-a-review
#17
Jorge Carlos Garces, Sixto Giusti, Catherine Staffeld-Coit, Humberto Bohorquez, Ari J Cohen, George E Loss
BACKGROUND: Chronic antibody injury is a serious threat to allograft outcomes and is therefore the center of active research. In the continuum of allograft rejection, the development of antibodies plays a critical role. In recent years, an increased recognition of molecular and histologic changes has provided a better understanding of antibody-mediated rejection (AMR), as well as potential therapeutic interventions. However, several pathways are still unknown, which accounts for the lack of efficacy of some of the currently available agents that are used to treat rejection...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28319594/long-term-cardiovascular-autonomic-and-clinical-changes-after-immunoglobulin-g-immunoadsorption-therapy-in-autoimmune-autonomic-ganglionopathy
#18
Franca Barbic, Franca Dipaola, Francesca Andreetta, Enrico Brunetta, Laura Dalla Vecchia, Renato Mantegazza, Raffaello Furlan, Carlo Antozzi
: A 63-year-old male was diagnosed with autoimmune autonomic ganglionopathy based on the finding of plasma antibodies to the nicotinic acetylcholine receptor (nAChR) of autonomic ganglia. He complained of mouth and eye dryness, dysphagia, severe constipation, erectile dysfunction, urgency, frequent urination, habitual orthostatic syncope and presyncope. A remarkable symptomatic orthostatic hypotension without changes in heart rate was present. We here describe the 3-year time course of the changes in spectral indices of cardiovascular autonomic control LF/HF and LFSAP, dysautonomia symptoms intensity and anti-nAChR antibodies following repetitive selective immunoadsorptions...
July 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28290809/-role-of-autoantibodies-against-1-adrenergic-receptor-in-cardiovascular-disease
#19
M V Kostyukevich, K A Zykov, N A Mironova, O Y Agapova, A Y Shevelev, E E Efremov, T N Vlasik, S P Golitsyn
According to current knowledge, autoantibodies against 1-adrenergic receptors may be involved in pathogenesis of different cardiovascular diseases and are mostly studied in patients with Chagas disease, dilated cardiomyopathy and heart rhythm disorders. They may play an important role in cardiomyocyte apoptosis, alteration of their chrono- and inotropic effects and electrophysiological characteristics. Their effects are transduced via 1-adrenergic receptors and depend on multiple factors as ligand properties, durability of its coupling with the receptor, amount of receptors on the cell surface, their affinity and conformation...
December 2016: Kardiologiia
https://www.readbyqxmd.com/read/28254561/extracorporeal-ige-immunoadsorption-in-allergic-asthma-safety-and-efficacy
#20
RANDOMIZED CONTROLLED TRIAL
Christian Lupinek, Kurt Derfler, Silvia Lee, Thomas Prikoszovich, Oliver Movadat, Eva Wollmann, Carolin Cornelius, Milena Weber, Renate Fröschl, Regina Selb, Katharina Blatt, Dubravka Smiljkovic, Volker Schoder, René Cervenka, Thomas Plaichner, Gottfried Stegfellner, Hans Huber, Rainer Henning, Justyna Kozik-Jaromin, Thomas Perkmann, Verena Niederberger, Ventzislav Petkov, Peter Valent, Adelheid Gauly, Hans Peter Leinenbach, Ingrid Uhlenbusch-Koerwer, Rudolf Valenta
BACKGROUND: Prevention of IgE-binding to cellular IgE-receptors by anti-IgE (Omalizumab) is clinically effective in allergic asthma, but limited by IgE threshold-levels. To overcome this limitation, we developed a single-use IgE immunoadsorber column (IgEnio). IgEnio is based on a recombinant, IgE-specific antibody fragment and can be used for the specific extracorporeal desorption of IgE. OBJECTIVE: To study safety and efficacy of IgEnio regarding the selective depletion of IgE in a randomized, open-label, controlled pilot trial in patients with allergic asthma and to investigate if IgEnio can bind IgE-Omalizumab immune complexes...
March 2017: EBioMedicine
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