Passenger lymphocyte thrombocytopenia due to human platelet antigen 3a antibodies: Case report and review of literature

Transfusion ◽  
2020 ◽  
Vol 60 (10) ◽  
pp. 2185-2188
Author(s):  
Winnifred French ◽  
Matthew Hopkins ◽  
Anthony Poles ◽  
Aleksandar Mijovic

2019 ◽  
Vol 80 ◽  
pp. 59
Author(s):  
Justin Kreuter ◽  
Micah Zuccarelli ◽  
Patti Duellman ◽  
Laurie L. Wakefield ◽  
Manish J. Gandhi


2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
O. P. Arewa ◽  
S. Nahirniak ◽  
G. Clarke

Posttransfusion purpura (PTP) is an uncommon, but potentially fatal, transfusion reaction characterized by profound thrombocytopenia and bleeding. PTP is caused by alloimmunization to human platelet specific antigens following blood component transfusion. Although there is evidence of a wide serological spectrum of culprit antibodies implicated, Anti-human-platelet-antigen- (HPA-) 1a is the most common antibody in cases reported. We report a case of posttransfusion purpura in an African American. The patient was negative for HPA-1a antibodies, but anti-HPA-1b was identified with a platelet phenotype of HPA-1a/HPA-1a. Although less common, HPA-1b antibody may be an important consideration in posttransfusion purpura diagnosed in patients of African descent.





1993 ◽  
Vol 69 (05) ◽  
pp. 485-489 ◽  
Author(s):  
Isabelle Djaffar ◽  
Didier Vilette ◽  
Dominique Pidard ◽  
Jean-Luc Wautier ◽  
Jean-Philippe Rosa

SummaryThe human platelet antigen (HPA) 3 system is expressed on GPIIb, one subunit of GPIIb-IIIa, the platelet fibrinogen receptor. It was recently shown that HPA-3 was associated with an Ile843/Ser polymorphism. To investigate further HPA-3 determinant structure, we localized an HPA-3a determinant, recognized by the alloantiserum Leka, within the last 29 amino acids of GPIIbα. This region encompasses the polymorphic Ile843, which, as expected, is substituted into Ser in Leka-negative individuals, as shown by DNA sequence after polymerase chain reaction on platelet RNA. In addition, contribution of glycosylation to the determinant structure was demonstrated since the Leka antigenicity was strongly decreased after specifically removing nonterminal O-linked sugars, but not terminal sialic acids. We have thus refined the localization of an HPA-3a determinant within the last 29 amino acids, including Ile843, of GPIIb heavy chain, and shown that the Leka HPA-3a determinant is dependent, in part, upon the serine-linked carbohydrates adjacent to Ile/Ser843.



1997 ◽  
Vol 78 (02) ◽  
pp. 964-965 ◽  
Author(s):  
Karl H Reuner ◽  
Michael Elgas ◽  
Michael Kaps ◽  
Andreas Ruf ◽  
Heinrich Patscheke


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Sang Mee Hwang ◽  
Mi Jung Kim ◽  
Ho Eun Chang ◽  
Yun Ji Hong ◽  
Taek Soo Kim ◽  
...  

CD109 gene encodes a glycosylphosphatidylinositol-linked glycoprotein found in a subset of platelets and endothelial cell, and human platelet antigen (HPA) 15 is found on CD109. We evaluated the HPA genotype and/or the CD109 mRNA expression on two peripheral blood stem cells (PBSC), two peripheral bloods (PB), 12 granulocyte products, natural killer (NK)-92, B-lymphocyte (CO88BV59-1), K-562 leukemia cell line, human embryonic stem cell (hESC), and human fibroblasts (HF). HPA genotyping was performed by SNaPshot assay and CD109 mRNA expression was evaluated by real-time PCR with SYBR green and melting curve analysis. Genotype HPA-15a/-15a was found in PBSC#1 and two granulocyte products, and HPA-15a/-15b was found in PBSC#2, eight granulocyte products, NK-92, K-562, hESC, and HF, and HPA-15b/-15b was found in two granulocyte products. CD109 mRNA expression was highly increased in HF and increased in CD34+ and CD34− PBSCs and some granulocyte products, compared to the PB. However, the increase of expression level varied among the PBSC and granulocyte products. The CD109 mRNA expression of NK-92, K-562, hESC, and CO 88BV59-1 was not detected. HPA genotype was evaluated in various cells and the expression of CD109, which contains HPA 15, was different among cell lines and high in HF and PBSCs.



Vox Sanguinis ◽  
2007 ◽  
Vol 93 (3) ◽  
pp. 241-249 ◽  
Author(s):  
R. Fontão-Wendel ◽  
L. C. N. Silva ◽  
C. B. R. Saviolo ◽  
B. Primavera ◽  
S. Wendel




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