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Red blood cell antigen

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https://www.readbyqxmd.com/read/29664201/rare-blood-donor-needed
#1
Richard R Gammon, Harold Alvarez, Nancy Benitez
BACKGROUND: Here, we describe a 14-year-old male with leukocyte adhesion deficiency type 2 who was transferred to a university hospital with anemia (hemoglobin 6 g/dL) and multiple singular abscesses refractory to antimicrobials. CASE REPORT: As leukocyte adhesion deficiency type 2 is associated with Bombay phenotype, the patient's red blood cells (RBCs) were tested with commercial anti-H lectin Ulex europaeus. An allogeneic adsorption with phenotype-matched cells was performed...
April 17, 2018: Transfusion
https://www.readbyqxmd.com/read/29664198/hemoglobin-a-clearance-in-children-with-sickle-cell-anemia-on-chronic-transfusion-therapy
#2
Marianne E M Yee, Cassandra D Josephson, Anne M Winkler, Jennifer Webb, Naomi L C Luban, Traci Leong, Sean R Stowell, John D Roback, Ross M Fasano
BACKGROUND: Chronic transfusion therapy for sickle cell anemia reduces disease complications by diluting sickle-erythrocytes with hemoglobin A (HbA)-containing erythrocytes and suppressing erythropoiesis. Minor antigen mismatches may result in alloimmunization, but it is unknown if antigen mismatches or recipient characteristics influence HbA clearance posttransfusion. STUDY DESIGN AND METHODS: Children with sickle cell anemia on chronic transfusion therapy were followed prospectively for 12 months...
April 17, 2018: Transfusion
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/29662110/identification-of-human-glycosyltransferase-genes-expressed-in-erythroid-cells-predicts-potential-carbohydrate-blood-group-loci
#4
Magnus Jöud, Mattias Möller, Martin L Olsson
Glycans are biologically important structures synthesised by glycosyltransferase (GT) enzymes. Disruptive genetic null variants in GT genes can lead to serious illness but benign phenotypes are also seen, including antigenic differences on the red blood cell (RBC) surface, giving rise to blood groups. To characterise known and potential carbohydrate blood group antigens without a known underlying gene, we searched public databases for human GT loci and investigated their variation in the 1000 Genomes Project (1000 G)...
April 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29642539/in-silico-functional-networks-identified-in-fish-nucleated-red-blood-cells-by-means-of-transcriptomic-and-proteomic-profiling
#5
Sara Puente-Marin, Iván Nombela, Sergio Ciordia, María Carmen Mena, Verónica Chico, Julio Coll, María Del Mar Ortega-Villaizan
Nucleated red blood cells (RBCs) of fish have, in the last decade, been implicated in several immune-related functions, such as antiviral response, phagocytosis or cytokine-mediated signaling. RNA-sequencing (RNA-seq) and label-free shotgun proteomic analyses were carried out for in silico functional pathway profiling of rainbow trout RBCs. For RNA-seq, a de novo assembly was conducted, in order to create a transcriptome database for RBCs. For proteome profiling, we developed a proteomic method that combined: (a) fractionation into cytosolic and membrane fractions, (b) hemoglobin removal of the cytosolic fraction, (c) protein digestion, and (d) a novel step with pH reversed-phase peptide fractionation and final Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometric (LC ESI-MS/MS) analysis of each fraction...
April 9, 2018: Genes
https://www.readbyqxmd.com/read/29624682/abo-incompatibility-and-rhig-immunoprophylaxis-protect-against-non-d-alloimmunization-by-pregnancy
#6
Carolien Zwiers, Joke M Koelewijn, Lisa Vermij, Joost van Sambeeck, Dick Oepkes, Masja de Haas, C Ellen van der Schoot
BACKGROUND: Hemolytic disease of the fetus and newborn (HDFN) is caused by maternal antibodies against fetal red blood cell antigens, most often anti-D, -K, or -c. ABO incompatibility between mother and child and anti-D immunoprophylaxis (RhIG) are known to reduce the risk of D immunization and subsequent HDFN. However, no immunoprophylaxis has been developed to prevent non-D immunizations. STUDY DESIGN AND METHODS: We evaluated whether ABO incompatibility has a preventive effect on formation of non-D alloantibodies, by performing a case-control study including pregnant women with newly detected non-D antibodies, identified within a nationwide data set, immunized during their first pregnancy and/or delivery...
April 6, 2018: Transfusion
https://www.readbyqxmd.com/read/29616672/erythrocyte-phenotype-in-a-pregnant-woman-of-sri-lanka-description-of-the-case-and-complications-related-to-communication-problems
#7
Alvaro Ringressi, Veronica Cunsolo, Francesca Malentacchi, Simone Pozzessere
BACKGROUND: The Bombay phenotype is a rare genetic trait which is characterized by the absence of A, B and H antigens on red cells as well as in body secretions. The serum shows the presence of antibodies against antigen H. Patients with this rare blood type are not easily transfusable. We had observed a woman aged 18, at the 20th week of pregnancy, native of Sri Lanka, with an IgG and IgM class anti-H. We report the case and the clinical issues arisen. MATERIALS AND METHODS: The determination of ABO, Rh[D] group, the indirect antiglobulin test (IAT) were performed in tube techniques and in neutral gel microcolumn...
January 2018: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/29608321/management-of-pregnancy-sensitized-with-anti-inb-with-monocyte-monolayer-assay-and-maternal-blood-donation
#8
Raj Shree, Kimberly K Ma, Lay S Er, Meghan Delaney
Maternal red blood cell (RBC) alloantibodies can cause hemolytic disease of the fetus and newborn (HDFN). Although much is described about common antibodies associated with HDFN, management of a pregnancy complicated by a maternal rare antibody presents several challenges related to assessment of fetal anemia risk, availability of blood for transfusion to the mother and/or the fetus or newborn if needed, and planning for delivery in the case of maternal hemorrhage. Here we report the laboratory medicine workup of a patient who presented for obstetrical care in the United States in the third trimester and had a rare antibody (anti-Inb)...
January 2018: Immunohematology
https://www.readbyqxmd.com/read/29608320/a-brief-overview-of-clinical-significance-of-blood-group-antibodies
#9
Manish J Gandhi, D M Strong, Barbee I Whitaker, Evangelia Petrisli
This review was derived from a presentation made on September 2, 2016 for the first Academy Day presented by the Working Party on Immunohematology at the International Society of Blood Transfusion (ISBT) Congress in Dubai. The focus of this review is to provide a brief overview of the clinical significance of blood group antibodies. Blood group antibodies can be naturally occurring (e.g., anti-A and anti-B through exposure to naturally occurring red blood cell [RBC] antigen-like substances) or can occur via exposure to foreign (donor) RBC antigens through previous transfusions, transplants, or exposure to fetal RBCs during or after pregnancy...
January 2018: Immunohematology
https://www.readbyqxmd.com/read/29604134/b4galnt2-and-xenotransplantation-a-newly-appreciated-xenogeneic-antigen
#10
REVIEW
Guerard Byrne, Saadullah Ahmad-Villiers, Zeji Du, Christopher McGregor
Analysis of non-Gal antibody induced after pig-to-baboon cardiac xenotransplantation identified the glycan produced by porcine beta-1,4-N-acetyl-galactosaminyltransferase 2 (B4GALNT2) as an immunogenic xenotransplantation antigen. The porcine B4GALNT2 enzyme is homologous to the human enzyme, which synthesizes the human SDa blood group antigen. Most humans produce low levels of anti-SDa IgM which polyagglutinates red blood cells from rare individuals with high levels of SDa expression. The SDa glycan is also present on GM2 gangliosides...
March 31, 2018: Xenotransplantation
https://www.readbyqxmd.com/read/29596498/analyses-of-genome-wide-association-data-cytokines-and-gene-expression-in-african-americans-with-benign-ethnic-neutropenia
#11
Bashira A Charles, Matthew M Hsieh, Adebowale A Adeyemo, Daniel Shriner, Edward Ramos, Kyung Chin, Kshitij Srivastava, Neil A Zakai, Mary Cushman, Leslie A McClure, Virginia Howard, Willy A Flegel, Charles N Rotimi, Griffin P Rodgers
BACKGROUND: Benign ethnic neutropenia (BEN) is a hematologic condition associated with people of African ancestry and specific Middle Eastern ethnic groups. Prior genetic association studies in large population showed that rs2814778 in Duffy Antigen Receptor for Chemokines (DARC) gene, specifically DARC null red cell phenotype, was associated with BEN. However, the mechanism of this red cell phenotype leading to low white cell count remained elusive. METHODS: We conducted an extreme phenotype design genome-wide association study (GWAS), analyzed ~16 million single nucleotide polymorphisms (SNP) in 1,178 African-Americans individuals from the Reasons for Geographic and Racial Differences in Stroke (REGARDS) study and replicated from 819 African-American participants in the Atherosclerosis Risk in Communities (ARIC) study...
2018: PloS One
https://www.readbyqxmd.com/read/29593462/abo-rhesus-and-kell-antigens-alleles-and-haplotypes-in-west-bengal-india
#12
Debapriya Basu, Suvro Sankha Datta, Celina Montemayor, Prasun Bhattacharya, Krishnendu Mukherjee, Willy A Flegel
Background: Few studies have documented the blood group antigens in the population of eastern India. Frequencies of some common alleles and haplotypes were unknown. We describe phenotype, allele, and haplotype frequencies in the state of West Bengal, India. Methods: We tested 1,528 blood donors at the Medical College Hospital, Kolkata. The common antigens of the ABO, Rhesus, and Kell blood group systems were determined by standard serologic methods in tubes. Allele and haplotype frequencies were calculated with an iterative method that yielded maximum-likelihood estimates under the assumption of a Hardy-Weinberg equilibrium...
January 2018: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29593460/association-of-il-6-c-572g-gene-polymorphism-with-anti-e-production
#13
Jeong-Shi Lin, Li-Hsuan Lee, Hsueng-Mei Liu, Ying-Ju Chen, Tzeon-Jye Chiou
Background: Interleukin 6 (IL-6) is involved in regulation of immunoglobulin production. The aim of this study was to investigate the association between IL-6 single nucleotide polymorphisms (SNPs) in the IL-6 promoter and anti-E in red blood cell (RBC) transfusion recipients. Methods: 50 healthy subjects, 54 patients with RBC alloantibody anti-E (responders), and 45 patients without alloantibody (non-responders) were recruited. All patients were E antigen-negative...
January 2018: Transfusion Medicine and Hemotherapy
https://www.readbyqxmd.com/read/29593033/human-group-c-rotavirus-vp8-s-recognize-type-a-histo-blood-group-antigens-as-ligands
#14
Xiaoman Sun, Lihong Wang, Jianxun Qi, Dandi Li, Mengxuan Wang, Xin Cong, Ruchao Peng, Wengang Chai, Qing Zhang, Hong Wang, Hongling Wen, George F Gao, Ming Tan, Zhaojun Duan
Group/species C rotaviruses (RVCs) have been identified as important pathogens of acute gastroenteritis (AGE) in children, family-based outbreaks, as well as animal infections. However, little is known regarding their host-specific interaction, infection, and pathogenesis. In this study, we performed serial studies to characterize the function and structural features of a human G4P[lsqb]2[rsqb] RVC VP8* that is responsible for host receptor interaction. Glycan microarrays demonstrated that the human RVC VP8* recognizes type A histo-blood antigens (HBGAs), which was confirmed by synthetic glycan-/saliva-based binding assays, and hemagglutination of red blood cells, establishing a paradigm of RVC VP8*-glycan interactions...
March 28, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29582441/d-immunized-blood-donors-who-are-female-and-who-possess-at-least-one-hla-drb1-15-allele-show-a-propensity-for-high-serum-rhig-production
#15
Joanne C G Tan, Fang Fang Yuan, Jackie Daley, Katherine Marks, Robert L Flower, Wayne B Dyer
BACKGROUND: D- individuals with previous D-incompatible pregnancies and/or blood transfusions, as well as those who are actively immunized with small-volume D+ red blood cells (RBCs), are stimulated to produce RhIG. Many factors could influence the stimulation of immunoglobulin production in response to foreign antigen (such as antigen immunogenicity and genetic factors), and it is unknown whether genetic markers could potentially identify responder anti-D donors. STUDY DESIGN AND METHODS: Anti-D donors were assigned a responder profile based on their serum RhIG levels (n = 431)...
March 26, 2018: Transfusion
https://www.readbyqxmd.com/read/29573055/effect-of-cross-match-on-packed-cell-volume-after-transfusion-of-packed-red-blood-cells-in-transfusion-na%C3%A3-ve-anemic-cats
#16
Brittany Sylvane, Jennifer Prittie, Ann E Hohenhaus, Erik Tozier
BACKGROUND: Novel feline RBC antigens might contribute to decreased efficacy of RBC transfusion and increased incidence of acute transfusion reactions (ATR). OBJECTIVES: To examine the effect of major cross-match in transfusion-naïve anemic cats on the incidence of acute immunologic transfusion reaction and transfusion efficacy for up to 24 hours after transfusion. ANIMALS: Forty-eight client owned transfusion-naïve anemic cats. METHODS: Prospective, randomized, controlled study...
March 23, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29570817/red-blood-cell-alloimmunization-in-sickle-cell-disease-assessment-of-transfusion-protocols-during-two-time-periods
#17
Sally A Campbell-Lee, Kristina Gvozdjan, K Mia Choi, Yi-Fan Chen, Santosh L Saraf, Lewis L Hsu, Victor R Gordeuk, Ronald G Strauss, Darrell J Triulzi
BACKGROUND: Prevention of red blood cell (RBC) alloimmunization in patients with sickle cell disease (SCD) focuses on phenotypic RBC matching. We assessed alloimmunization among transfused patients with SCD after implementing leukoreduction and prophylactic antigen matching (PAM). STUDY DESIGN AND METHODS: Retrospective review of transfusion and medical records for SCD patients 18 months to 81 years of age was performed covering two 5-year periods: Period 1, no PAM, occasional leukoreduction, and Period 2, consistent leukoreduction and extended PAM (Rh, Kell, S, Fy, Jk) for patients already alloimmunized...
March 23, 2018: Transfusion
https://www.readbyqxmd.com/read/29565746/packed-red-blood-cell-transfusion-modulates-myeloid-dendritic-cell-activation-and-inflammatory-response-in-vitro
#18
Katrina K Ki, Helen M Faddy, Robert L Flower, Melinda M Dean
Transfusion of packed red blood cells (PRBCs) modulates patients' immune responses and clinical outcomes; however, the underpinning mechanism(s) remain unknown. The potential for PRBC to modulate myeloid dendritic cells (mDC) and blood DC antigen 3 was assessed using an in vitro transfusion model. In parallel, to model processes activated by viral or bacterial infection, toll-like receptor agonists polyinosinic:polycytidylic acid or lipopolysaccharide were added. Exposure to PRBC upregulated expression of CD83 and downregulated CD40 and CD80 on both DC subsets, and it suppressed production of interleukin (IL)-6, IL-8, IL-12, tumor necrosis factor-α, and interferon-gamma-inducible protein-10 by these cells...
March 2018: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/29563684/detection-of-antibodies-to-co-trimoxazole-preservative-drug-interfering-with-routine-red-cell-antibody-screening
#19
Deepti Sachan, S Aswin Kumar
Drug-dependent antibodies can rarely cause interference in pretransfusion antibody screening. The diluents for commercial reagent red blood cells contain different antibiotics, such as chloramphenicol, neomycin sulfate, and gentamycin as a preservative. The presence of antibodies to a given drug in patient may lead to positive results when performing antibody identification. We present a rare case of detection of anti-co-trimoxazole antibody during routine antibody screening in a female patient undergoing neurosurgery...
January 2018: Asian Journal of Transfusion Science
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
#20
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
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