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Red cell autoantibody

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https://www.readbyqxmd.com/read/29765386/design-of-a-type-1-diabetes-vaccine-candidate-using-edible-plants-expressing-a-major-autoantigen
#1
Edoardo Bertini, Matilde Merlin, Elisa Gecchele, Andrea Puggia, Annalisa Brozzetti, Mauro Commisso, Alberto Falorni, Vittorio Bini, Victor Klymyuk, Mario Pezzotti, Linda Avesani
Type-1 diabetes (T1D) is a metabolic disease involving the autoimmune destruction of insulin-producing pancreatic beta cells. It is often diagnosed by the detection of autoantibodies, typically those recognizing insulin itself or the 65-kDa isoform of glutamic acid decarboxylase (GAD65). Oral insulin can be used to induce systemic immunological tolerance and thus prevent or delay the onset of T1D, suggesting that combination treatments with other autoantigens such as GAD65 could be even more successful. GAD65 has induced oral tolerance and prevented T1D in preclinical studies but it is difficult to produce in sufficient quantities for clinical testing...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29724224/mog-encephalomyelitis-international-recommendations-on-diagnosis-and-antibody-testing
#2
REVIEW
S Jarius, F Paul, O Aktas, N Asgari, R C Dale, J de Seze, D Franciotta, K Fujihara, A Jacob, H J Kim, I Kleiter, T Kümpfel, M Levy, J Palace, K Ruprecht, A Saiz, C Trebst, B G Weinshenker, B Wildemann
Over the past few years, new-generation cell-based assays have demonstrated a robust association of autoantibodies to full-length human myelin oligodendrocyte glycoprotein (MOG-IgG) with (mostly recurrent) optic neuritis, myelitis and brainstem encephalitis, as well as with acute disseminated encephalomyelitis (ADEM)-like presentations. Most experts now consider MOG-IgG-associated encephalomyelitis (MOG-EM) a disease entity in its own right, immunopathogenetically distinct from both classic multiple sclerosis (MS) and aquaporin-4 (AQP4)-IgG-positive neuromyelitis optica spectrum disorders (NMOSD)...
May 3, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29664112/efficacy-of-d-red-blood-cell-transfusion-and-rituximab-therapy-in-autoimmune-hemolytic-anemia-with-anti-d-and-panreactive-autoantibodies-arising-after-hematopoietic-stem-cell-transplant
#3
Keiji Minakawa, Hitoshi Ohto, Hiroyasu Yasuda, Shunichi Saito, Kinuyo Kawabata, Kazuei Ogawa, Kenneth E Nollet, Kazuhiko Ikeda
BACKGROUND: Autoimmune hemolytic anemia (AIHA) is caused by autoantibodies to red blood cells (RBCs), which can be panreactive and/or specific to Rh/other blood group antigens. We report a severe case of AIHA after bone marrow transplantation (BMT) due to autoanti-D triggered by reactivation of Epstein-Barr virus (EBV) infection. A combined strategy of D- RBC transfusion and administration of anti-CD20 monoclonal antibody (MoAb) resolved the hemolysis. CASE REPORT: A 33-year-old male underwent allogeneic BMT from an ABO-identical and HLA-matched unrelated male donor...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29650300/-surgical-treatment-of-an-auto-immune-hemolytic-anemia
#4
J-P Martellosio, C Landron, S Milin, R Sarfati, F Arrivé, C Beuvon, P Roblot
INTRODUCTION: Auto-immune hemolytic anemia (AIHA) is a rare cause of anemia, characterized by autoantibodies directed against self red blood cells. It can be primary or secondary, in particular due to lymphoproliferative diseases. CASE REPORT: We report the case of a 24-year-old woman who presented with a severe macrocytic anemia associated with an ovarian teratoma. CONCLUSION: Ovarian teratoma is a rare cause of secondary AIHA, with only few cases reported...
April 9, 2018: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29608319/warm-autoadsorption-using-zzap
#5
Farai M Tsimba-Chitsva, Amy Caballero, Becky Svatora
The masking of clinically significant alloantibodies by warm autoantibodies presents challenges in pretransfusion testing. The adoption of transfusion practices such as the issuing of "least incompatible" red blood cells (RBCs) without a complete antibody workup is potentially unsafe for patients. Several autoadsorption methods can be used to remove autoantibody reactivity. ZZAP treatment of autologous RBCs is an efficient way to prepare the cells for autoadsorption. Autoadsorbed serum or plasma can then be used to remove autoantibody reactivity and identify clinically significant alloantibodies...
January 2018: Immunohematology
https://www.readbyqxmd.com/read/29582550/consensus-opinion-on-diagnosis-and-management-of-thrombotic-microangiopathy-in-australia-and-new-zealand
#6
REVIEW
Lucy C Fox, Solomon J Cohney, Joshua Y Kausman, Jake Shortt, Peter D Hughes, Erica M Wood, Nicole M Isbel, Theo de Malmanche, Anne Durkan, Pravin Hissaria, Piers Blombery, Thomas D Barbour
Thrombotic microangiopathy (TMA) arises in a variety of clinical circumstances with the potential to cause significant dysfunction of the kidneys, brain, gastrointestinal tract and heart. TMA should be considered in all patients with thrombocytopenia and anaemia, with an immediate request to the haematology laboratory to look for red cell fragments on a blood film. Whilst TMA of any aetiology generally demands prompt treatment, this is especially so in thrombotic thrombocytopenic purpura (TTP) and atypical haemolytic uraemic syndrome (aHUS), where organ failure may be precipitous, irreversible and fatal...
March 27, 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/29563682/anti-kp-a-alloantibody-development-of-a-rare-alloantibody-in-a-non-hodgkin-s-lymphoma-patient-of-indian-origin
#7
Sadhana Mangwana, Vivek Gangwar
The Kell blood group system is complex, contains many antigens, highly immunogenic, and potent in triggering immune reactions. Antibodies to Kell blood group system are the most common immune red cell antibodies, following ABO and Rh. However, among the anti-Kell antibodies; anti-Kpa is extremely rare. We report an interesting case of Anti-Kpa in a 59-year-old female patient of Non-Hodgkin's Lymphoma, post radiotherapy, who first developed warm autoantibody and later developed anti-Kpa alloantibody on multiple transfusions...
January 2018: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/29563670/prevalence-of-irregular-red-cell-antibody-in-healthy-blood-donors-attending-a-tertiary-care-hospital-in-north-india
#8
Raj Nath Makroo, Saroj Rajput, Soma Agarwal, Mohit Chowdhry, Bindu Prakash, Prashant Karna
BACKGROUND: Alloantibodies may be detected in blood donors who have either been transfused previously or female donors with previous obstetric events. These antibodies can occasionally cause severe transfusion reaction, if a large amount of plasma or whole blood is transfused, as in massive transfusions and pediatric patients. AIMS: The present study aims to assess the prevalence of red cell antibodies in healthy blood donors at a tertiary care hospital-based blood bank in India...
January 2018: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/29553439/red-blood-cell-alloantibodies-in-multiply-transfused-patients-in-the-occupied-palestinian-territory-a-pilot-study
#9
Ahmad Yaseen, Sa'd Suleiman, Omar Abu Zenah, Adham Abu Taha
BACKGROUND: Red blood-cell transfusion has greatly reduced the mortality and morbidity in multiply transfused patients with thalassaemia and sickle cell disease. However, this can result in red blood-cell isoimmunisation with autoantibodies and alloantibodies, which can lead to serious complications such as delayed haemolytic transfusion reaction. The aim of this study was to assess the frequency and types of alloantibodies in multiply transfused patients living in the north of the West Bank...
February 21, 2018: Lancet
https://www.readbyqxmd.com/read/29512373/good-s-syndrome-association-of-the-late-onset-combined-immunodeficiency-with-thymoma-review-of-literature-and-case-report
#10
Marzieh Tavakol, Seyed Alireza Mahdaviani, Mir Reza Ghaemi, Mohammad Vaezi, Atosa Dorudinia, Hamidreza Jamaati, Ali Akbar Velayati
Good's syndrome, the adult onset hypogammaglobulinemia associated with thymoma has been explained about six decades ago. It generally presents with recurrent infections and several paraneoplastic syndromes including myasthenia gravis, pure red cell aplasia, connective tissue disorders, superior vena cava, Horner's syndrome, lichen planus and inflammatory bowel disease. Lack of B cell, dysfunction of T cell, CD4+ T cell lymphopenia, reversed CD4/CD8+ T cell ratio, autoantibodies against Th17 related cytokines have been respected as the pathogenesis of the immune dysregulation this syndrome...
February 2018: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29482710/cold-agglutinins-in-peripheral-blood-with-atypical-cells-with-an-owl-eye-appearance-in-bone-trephine
#11
Ayesha Majeed Memon, Farheen Karim
Autoimmune hemolytic anemia (AIHA) is a form of hemolytic anemia in which red cells lysis occurs due to presence of an autoantibody. Association of AIHA is well known with lymphoproliferative disorders, especially with non-Hodgkin's lymphoma. However, AIHA in association with Hodgkin's lymphoma is seen occasionally. Of the AIHA associated with Hodgkin's lymphoma, most are of warm type or mixed type. Cold AIHA, as seen in our case, is very rare in Hodgkin's lymphoma.
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29419916/consensus-opinion-on-diagnosis-and-management-of-thrombotic-microangiopathy-in-australia-and-new-zealand
#12
REVIEW
Lucy C Fox, Solomon J Cohney, Joshua Y Kausman, Jake Shortt, Peter D Hughes, Erica M Wood, Nicole M Isbel, Theo de Malmanche, Anne Durkan, Pravin Hissaria, Piers Blombery, Thomas D Barbour
Thrombotic microangiopathy (TMA) arises in a variety of clinical circumstances with the potential to cause significant dysfunction of the kidneys, brain, gastrointestinal tract and heart. TMA should be considered in all patients with thrombocytopenia and anaemia, with an immediate request to the haematology laboratory to look for red cell fragments on a blood film. Whilst TMA of any aetiology generally demands prompt treatment, this is especially so in thrombotic thrombocytopenic purpura (TTP) and atypical haemolytic uraemic syndrome (aHUS), where organ failure may be precipitous, irreversible and fatal...
February 8, 2018: Nephrology
https://www.readbyqxmd.com/read/29378150/dithiothreitol-treatment-of-red-blood-cells
#13
Carolina B Bub
Dithiothreitol (DTT), a reducing reagent, has multiple applications in blood bank testing. DTT disrupts the bridging of the disulfide bonds between amino acid residues necessary for structural conformation of some proteins and the bonds holding an IgM molecule in the pentameric formation. DTT treatment of red blood cells (RBCs) can denature or modify certain blood group antigens-in particular, those in the Kell, Lutheran, YT, JMH, LW, Cromer, Indian, Dombrock, and Knops systems-and prevent recognition by the corresponding antibodies...
December 2017: Immunohematology
https://www.readbyqxmd.com/read/29350115/-haemolysis-role-of-the-direct-antiglobulin-test-and-eluate
#14
H M Hamer, E A Beckers, Y M Henskens
Haemolytic anaemia is the result of an abnormal breakdown of red blood cells. The direct antiglobulin test (DAT), also known as the direct Coombs test, can be used to determine the cause of the haemolysis. The DAT distinguishes between immune and non-immune causes of haemolysis. However, the DAT should not be used in screening for haemolysis. When the DAT is performed without an indication for in vivo haemolysis, there is a high risk of false-positive results. To increase the specificity of the DAT, the eluate can be tested to determine the specificity of the autoantibodies...
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29296731/human-and-murine-splenic-neutrophils-are-potent-phagocytes-of-igg-opsonized-red-blood-cells
#15
Sanne M Meinderts, Per-Arne Oldenborg, Boukje M Beuger, Thomas R L Klei, Johanna Johansson, Taco W Kuijpers, Takashi Matozaki, Elise J Huisman, Masja de Haas, Timo K van den Berg, Robin van Bruggen
Red blood cell (RBC) clearance is known to occur primarily in the spleen, and is presumed to be executed by red pulp macrophages. Erythrophagocytosis in the spleen takes place as part of the homeostatic turnover of RBCs to remove old RBCs. It can be strongly promoted by immunoglobulin G (IgG) opsonization of RBCs, a condition that can occur as a consequence of autoantibody or alloantibody formation. The purpose of our study was to investigate which phagocytes are involved in IgG-mediated RBC clearance in the human spleen...
June 13, 2017: Blood Advances
https://www.readbyqxmd.com/read/29296728/cold-agglutinin-disease-burden-a-longitudinal-analysis-of-anemia-medications-transfusions-and-health-care-utilization
#16
Megan Mullins, Xiaohui Jiang, Lauren C Bylsma, Jon P Fryzek, Heidi Reichert, Evan C Chen, Shivaani Kummar, Adam Rosenthal
Cold agglutinin disease (CAD), a rare disease and subtype of autoimmune hemolytic anemia, is characterized by autoantibodies that bind to red blood cells at low temperatures. There is no established standard of care for CAD treatment and CAD cohort studies are limited by the rarity of the condition. The objectives of this study are to present the longitudinal experience of a CAD cohort from the United States, with a focus on anemia severity, use of medications and transfusions, and health care resource utilization...
May 23, 2017: Blood Advances
https://www.readbyqxmd.com/read/29174516/retracted-delayed-hemolytic-transfusion-reaction-and-hyperhemolysis-syndrome-without-detectable-alloantibodies-or-autoantibodies-in-a-patient-with-sickle-cell-disease-a-fatal-case-report-and-literature-review
#17
Basile Nsimba
L'éditeur a le regret de vous informer que cet article a déjà été publié dans: Journal of Blood Disorders & Transfusion, 2017, 8:4. DOI: 10.4172/2155-9864.1000388. Cette seconde publication faite par erreur a été retirée.
November 22, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/29163471/innate-b-1-b-cells-are-not-enriched-in-red-blood-cell-autoimmune-mice-importance-of-b-cell-receptor-transgenic-selection
#18
Amanda L Richards, Heather L Howie, Linda M Kapp, Jeanne E Hendrickson, James C Zimring, Krystalyn E Hudson
Autoimmune hemolytic anemia (AIHA) results from breakdown of humoral tolerance to RBC antigens. Past analyses of B-cell receptor transgenic (BCR-Tg) mice that recognize RBC autoantigens led to a paradigm in which autoreactive conventional B-2 B cells are deleted whereas extramedullary B-1 B cells escape deletion due to lack of exposure to RBCs. However, BCR-Tg mice utilized to shape the current paradigm were unable to undergo receptor editing or class-switching. Given the importance of receptor editing as mechanism to tolerize autoreactive B cells during central tolerance, we hypothesized that expansion of autoreactive B-1 B cells is a consequence of the inability of the autoreactive BCR to receptor edit...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29135841/severe-warm-autoimmune-hemolytic-anemia-in-a-7-month-old-infant-associated-with-a-mycoplasma-pneumoniae-infection
#19
Cierra Wandro, Leili Dolatshahi, Douglas Blackall
A 7-month-old female infant had clinical and laboratory evidence of severe warm autoimmune hemolytic anemia. She also had clinical evidence of an upper respiratory tract infection with molecular detection of Mycoplasma pneumoniae. Although reticulocytopenic initially, she responded to red blood cell transfusion, steroids, and intravenous immunoglobulin and remains well today. With the increasing use of multiplex respiratory viral and bacterial pathogen detection systems, the rare association described in this report may prove to be more common than previously thought and may provide insight into the pathogenesis and clinical consequences of red blood cell autoantibodies...
November 13, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29100558/immunohaematological-complications-in-patients-with-sickle-cell-disease-after-haemopoietic-progenitor-cell-transplantation-a-prospective-single-centre-observational-study
#20
Elizabeth S Allen, Kshitij Srivastava, Matthew M Hsieh, Courtney D Fitzhugh, Harvey G Klein, John F Tisdale, Willy A Flegel
BACKGROUND: Haemopoietic progenitor cell (HPC) transplantation can cure sickle cell disease. Non-myeloablative conditioning typically results in donor-derived erythrocytes and stable mixed chimerism of recipient-derived and donor-derived leucocytes. Exposure to donor antigens from the HPC graft and new red cell antibodies induced by transfusion can lead to immunohaematological complications. We assessed the incidence of such complications among HPC transplant recipients with sickle cell disease...
November 2017: Lancet Haematology
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