Constitutive expression of platelet glycoproteins by the human leukemia
cell line K562
AM Gewirtz, D Burger, TA Rado, EJ Benz and R Hoffman
The human leukemia cell line K562 was derived from a patient with chronic
granulocytic leukemia. This cell line has subsequently been shown to
possess phenotypic markers typical of erythroid and myeloid cells. Using a
rabbit antiserum directed against purified platelet glycoproteins (PGPs),
we have obtained evidence for the constitutive expression of PGPs on the
surface of K562 cells. PGPs expressed have been tentatively identified as
IIa and III based on their apparent migration in a 7% sodium dodecylsulfate
polyacrylamide gel. K562 may become an important tool for the study of
early events involved in megakaryocytic differentiation.
Volume 60,
Issue 3,
pp. 785-789,
09/01/1982
Copyright © 1982 by The American Society of Hematology