Evidence that several high-frequency human blood group antigens reside on
phosphatidylinositol-linked erythrocyte membrane proteins
MJ Telen, WF Rosse, CJ Parker, MK Moulds and JJ Moulds
Department of Medicine, Duke University Medical Center, Durham, NC 27710.
Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired disorder
associated with absence of expression of phosphatidylinositol (PI)- linked
membrane proteins from circulating hematopoietic cells of multiple
lineages. Recent work demonstrated that decay accelerating factor, one such
PI-linked protein, bears the Cromer-related blood group antigens. This
study demonstrated that other high incidence antigens, including Cartwright
(Yta/Ytb), Holley-Gregory (Hy/Gya), John Milton Hagen (JMH), and Dombrock
(Doa/Dob), are absent from the complement-sensitive (PNH III) erythrocytes
of patients with PNH. The relatively normal, complement-insensitive
erythrocytes from the same patients express these antigens normally.
Therefore, these antigens most likely reside on PI-linked proteins absent
from PNH III, but not PNH I, erythrocytes.
Volume 75,
Issue 7,
pp. 1404-1407,
04/01/1990
Copyright © 1990 by The American Society of Hematology