Abstract:Idiopathic aplastic anemia (IAA) is a rare autoimmune bone marrow failure disorder initiated by a human leukocyte antigen (HLA)-restricted T-cell response to unknown antigens. Immunogenetic patterns associated with self-antigenic presentation remain unclear. Herein we analyzed the molecular landscape of HLA complexes and T-cell receptor (TCR) repertoires of a large cohort of IAA patients and controls. We show that antigen binding sites of class II HLA molecules in IAA are characterized by a high level of stru… Show more
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