Neonatal alloimmune thrombocytopenia due to HLA-A2 antibody. 1992

M P Chow, and K J Sun, and C H Yung, and H Y Hu, and J L Tzeng, and T D Lee
Department of Medicine, Veterans General Hospital, Taipei, Taiwan, Republic of China.

A male, full-term baby with thrombocytopenia was born by a G3P2A1 mother who was not associated with autoimmune disease. Platelet antibody screening was positive by using lymphocytotoxicity test, platelet suspension immunofluorescence test and solid-phase red cell adherence test. The identified HLA antibody was of A2 specificity. It was confirmed by testing the mother's and the baby's sera against the lymphocytes and platelets of 10 HLA-A2-positive donors. The possibility of platelet-specific antibody as the cause of neonatal alloimmune thrombocytopenia was ruled out by testing against platelets of 10 HLA-A2-negative donors and the known platelet-specific antigens utilizing immobilized, purified platelet glycoprotein as targets. The mother's serum reacted strongly with both the father's and the baby's platelets and lymphocytes. This neonatal thrombocytopenia was most likely due to the maternal HLA antibody, which was induced by her antecedent gestations.

UI MeSH Term Description Entries
D007158 Immunologic Techniques Techniques used to demonstrate or measure an immune response, and to identify or measure antigens using antibodies. Antibody Dissociation,Immunologic Technic,Immunologic Technics,Immunologic Technique,Immunological Technics,Immunological Techniques,Technic, Immunologic,Technics, Immunologic,Technique, Immunologic,Techniques, Immunologic,Antibody Dissociations,Dissociation, Antibody,Dissociations, Antibody,Immunological Technic,Immunological Technique,Technic, Immunological,Technics, Immunological,Technique, Immunological,Techniques, Immunological
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007518 Isoantibodies Antibodies from an individual that react with ISOANTIGENS of another individual of the same species. Alloantibodies
D008297 Male Males
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013921 Thrombocytopenia A subnormal level of BLOOD PLATELETS. Thrombopenia,Thrombocytopenias,Thrombopenias
D015789 HLA-A2 Antigen A specific HLA-A surface antigen subtype. Members of this subtype contain alpha chains that are encoded by the HLA-A*02 allele family. HLA Class I Histocompatibility Antigen, A-2 alpha Chain,HLA-A2,Antigen, HLA-A2,HLA A2 Antigen,HLA Class I Histocompatibility Antigen, A 2 alpha Chain
D016824 Antigens, Human Platelet Human alloantigens expressed only on platelets, specifically on platelet membrane glycoproteins. These platelet-specific antigens are immunogenic and can result in pathological reactions to transfusion therapy. Antigens, Platelet-Specific,Human Platelet Antigen,Human Platelet Antigens,Platelet Alloantigen,Platelet Alloantigens,Platelet-Specific Antigen,Platelet-Specific Antigens,Alloantigen, Platelet,Alloantigens, Platelet,Antigen, Human Platelet,Antigen, Platelet-Specific,Antigens, Platelet Specific,Platelet Antigen, Human,Platelet Antigens, Human,Platelet Specific Antigen,Platelet Specific Antigens
D039661 Integrin beta3 An integrin beta subunit of approximately 85-kDa in size which has been found in INTEGRIN ALPHAIIB-containing and INTEGRIN ALPHAV-containing heterodimers. Integrin beta3 occurs as three alternatively spliced isoforms, designated beta3A-C. Antigens, CD61,CD61 Antigens,Integrin beta3A,Integrin beta3B,Integrin beta3C,Platelet Membrane Glycoprotein IIIa,CD61 Antigen,GPIIIa,Platelet GPIIIa,Platelet Glycoprotein IIIa,beta(3) Integrin,beta3 Integrin,beta3A Integrin,beta3B Integrin,beta3C Integrin,Antigen, CD61,Glycoprotein IIIa, Platelet,Integrin, beta3,Integrin, beta3A,Integrin, beta3B,Integrin, beta3C,beta3, Integrin

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