scholarly journals Human leukocyte antigen (HLA) class I antibodies and transfusion support in paediatric HLA‐matched haematopoietic cell transplant for sickle cell disease

2019 ◽  
Vol 189 (1) ◽  
pp. 162-170 ◽  
Author(s):  
Robert S. Nickel ◽  
John T. Horan ◽  
Allistair Abraham ◽  
Muna Qayed ◽  
Ann Haight ◽  
...  
Keyword(s):  
Sickle Cell Disease ◽  
Human Leukocyte Antigen ◽  
Sickle Cell ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Class I ◽  
Cell Transplant ◽  
Cell Disease ◽  
Leukocyte Antigen ◽  
Haematopoietic Cell

Human leukocyte antigen distribution and genomic ancestry in Brazilian patients with sickle cell disease

HLA ◽  
2017 ◽  
Vol 90 (4) ◽  
pp. 211-218 ◽  
Author(s):  
M. C. F. da Silva-Malta ◽  
P. S. Rodrigues ◽  
L. W. Zuccherato ◽  
F. C. B. de Souza ◽  
E. M. F. L. Domingues ◽  
...  
Keyword(s):  
Sickle Cell Disease ◽  
Human Leukocyte Antigen ◽  
Sickle Cell ◽  
Human Leukocyte ◽  
Cell Disease ◽  
Leukocyte Antigen

scholarly journals Non‐myeloablative human leukocyte antigen‐matched related donor transplantation in sickle cell disease: outcomes from three independent centres

2021 ◽  
Vol 192 (4) ◽  
pp. 761-768
Author(s):  
Mohsen Alzahrani ◽  
Moussab Damlaj ◽  
Neal Jeffries ◽  
Bader Alahmari ◽  
Avani Singh ◽  
...  
Keyword(s):  
Sickle Cell Disease ◽  
Human Leukocyte Antigen ◽  
Sickle Cell ◽  
Human Leukocyte ◽  
Cell Disease ◽  
Leukocyte Antigen ◽  
Disease Outcomes ◽  
Related Donor

scholarly journals Multiple sclerosis: disease modifying therapy and the human leukocyte antigen

2018 ◽  
Vol 76 (10) ◽  
pp. 697-704 ◽  
Author(s):  
Lineu Cesar Werneck ◽  
Paulo José Lorenzoni ◽  
Cláudia Suemi Kamoi Kay ◽  
Rosana Herminia Scola
Keyword(s):  
Multiple Sclerosis ◽  
Human Leukocyte Antigen ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Class I ◽  
Interferon Β ◽  
Leukocyte Antigen ◽  
Specific Subset ◽  
Hla Type ◽  
Disease Modifying

ABSTRACT Objective: To investigate the potential relationship between the human leukocyte antigen (HLA) type (class I and II) and the response to several disease-modifying therapies (DMTs) in patients with multiple sclerosis (MS). Methods: We analyzed clinical data of 87 patients with MS at the beginning and end of each type of DMT including the disease duration, Expanded Disability Status Scale and Multiple Sclerosis Severity Score (MSSS). Genotyping of HLA-DRB1, HLA-DPB1, HLA-DQB1, HLA-A, HLA-B and HLA-C alleles were identified using high-resolution techniques. Statistical correlation between the HLA type and response to DMTs was done using the initial and final MSSS. Results: Statistical relationships (p < 0.05) were found for only 15 of 245 alleles tested. There was a reduction in the MSSS for patients treated with corticosteroids (DRB1*15:01, DPB1*04:01, DQB1*02:01 and DQB1*03:01), azathioprine (DRB1*03:01, DPB1*04:01, DQB1*03:02, DQB1*06:02, HLA-C*07:02), interferon β-1a 22 mcg (DRB1*11:04, DQB1*03:01 and DQB1*03:02), interferon β-1a 30 mcg (DPB1*02:01, HLA-C*05:01) and interferon β-1b (DQB1*02:01). Conclusion: These findings suggest a few relationships between the HLA and response to DMTs in the disability for some types of HLA class I and II alleles in a specific subset of MS patients.

scholarly journals Human Leukocyte Antigen (HLA) class I and II datasets for sudanese

Data in Brief ◽  
2019 ◽  
Vol 24 ◽  
pp. 104027
Author(s):  
Ameer Mohamed Dafalla ◽  
Hisham Atan Edinur ◽  
Mohammed Abdelwahed ◽  
Almutaz Abbas Elemam ◽  
Amel Abdeen Ibrahim ◽  
...  
Keyword(s):  
Human Leukocyte Antigen ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Class I ◽  
Leukocyte Antigen

scholarly journals A Viral, Transporter Associated with Antigen Processing (TAP)-independent, High Affinity Ligand with Alternative Interactions Endogenously Presented by the Nonclassical Human Leukocyte Antigen E Class I Molecule

2012 ◽  
Vol 287 (42) ◽  
pp. 34895-34903 ◽  
Author(s):  
Elena Lorente ◽  
Susana Infantes ◽  
David Abia ◽  
Eilon Barnea ◽  
Ilan Beer ◽  
...  
Keyword(s):  
Human Leukocyte Antigen ◽  
Antigen Processing ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Class I ◽  
Structural Motif ◽  
Leukocyte Antigen ◽  
High Affinity ◽  
Hla Class I Molecules ◽  
Infected Cells

The transporter associated with antigen processing (TAP) enables the flow of viral peptides generated in the cytosol by the proteasome and other proteases to the endoplasmic reticulum, where they complex with nascent human leukocyte antigen (HLA) class I. Later, these peptide-HLA class I complexes can be recognized by CD8+ lymphocytes. Cancerous cells and infected cells in which TAP is blocked, as well as individuals with unusable TAP complexes, are able to present peptides on HLA class I by generating them through TAP-independent processing pathways. Here, we identify a physiologically processed HLA-E ligand derived from the D8L protein in TAP-deficient vaccinia virus-infected cells. This natural high affinity HLA-E class I ligand uses alternative interactions to the anchor motifs previously described to be presented on nonclassical HLA class I molecules. This octameric peptide was also presented on HLA-Cw1 with similar binding affinity on both classical and nonclassical class I molecules. In addition, this viral peptide inhibits HLA-E-mediated cytolysis by natural killer cells. Comparison between the amino acid sequences of the presenting HLA-E and HLA-Cw1 alleles revealed a shared structural motif in both HLA class molecules, which could be related to their observed similar cross-reactivity affinities. This motif consists of several residues located on the floor of the peptide-binding site. These data expand the role of HLA-E as an antigen-presenting molecule.

scholarly journals Co-evolution of Human Leukocyte Antigen (HLA) Class I Ligands with Killer-Cell Immunoglobulin-Like Receptors (KIR) in a Genetically Diverse Population of Sub-Saharan Africans

PLoS Genetics ◽  
2013 ◽  
Vol 9 (10) ◽  
pp. e1003938 ◽  
Author(s):  
Paul J. Norman ◽  
Jill A. Hollenbach ◽  
Neda Nemat-Gorgani ◽  
Lisbeth A. Guethlein ◽  
Hugo G. Hilton ◽  
...  
Keyword(s):  
Human Leukocyte Antigen ◽  
Killer Cell ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Class I ◽  
Diverse Population ◽  
Leukocyte Antigen ◽  
Sub Saharan

scholarly journals In silico investigation of binding affinities between human leukocyte antigen class I molecules and SARS-CoV-2 virus spike and ORF1ab proteins

2021 ◽  
Author(s):  
Spyros A. Charonis ◽  
Effie-Photini Tsilibary ◽  
Apostolos P. Georgopoulos
Keyword(s):  
Human Leukocyte Antigen ◽  
In Silico ◽  
Human Leukocyte ◽  
Hla Class I ◽  
Hla Class Ii ◽  
Class I ◽  
Binding Affinities ◽  
S Protein ◽  
Leukocyte Antigen ◽  
Hla Class I Molecules

Aim: The novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019, a global pandemic. There is hence an urgent need for effective approaches to understand the mechanism of viral interaction with immune cells that lead to viral elimination and subsequent long-term immunity. The first, immediate response to the viral infection involves mobilization of native immunity and human leukocyte antigen (HLA) class I mechanisms to kill infected cells and eliminate the virus. The second line of defense involves the activation of HLA class II system for the production of antibodies against the virus which will add to the elimination of the virus and prevent future infections. In a previous study, investigated the relations between SARS-CoV-2 spike glycoprotein (S protein) and HLA class II alleles were investigaed; here report on the relations of the S protein and the open reading frame 1ab (ORF1ab) of SARS-CoV-2 to HLA class I alleles. Methods: An in silico sliding window approach was used to determine exhaustively the binding affinities of linear epitopes of 10 amino acid length (10-mers) to each of 61 common (global frequency ≥ 0.01) HLA class I molecules (17, 24 and 20 from gene loci A, B and C, respectively). A total of 8,354 epitopes were analyzed; 1,263 from the S protein and 7,091 from ORF1ab. Results: HLA-A genes were the most effective at binding SARS-CoV-2 epitopes for both spike and ORF1ab proteins. Good binding affinities were found for all three genes and were distributed throughout the length of the S protein and ORF1ab polyprotein sequence. Conclusions: Common HLA class I molecules, as a population, are very well suited to binding with high affinity to SARS-CoV-2 spike and ORF1ab proteins and hence should be effective in aiding the early elimination of the virus.

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