CD38 is expressed in acute lymphoblastic leukemia (ALL) and acute myelogeno
us leukemia (AML) blasts and its prognostic significance is unknown. We inv
estigated CD38 expression in 304 AML and 138 ALL patients. CD38 was lower i
n AML-M3 compared to other FAB subtypes (5% vs. 41%; P < 0.001), but was si
milar among ALL subtypes (56.6%; P = 0.69). Ph + ALL and AML with t(15;17)
patients showed lower CD38 expression than the other cytogenetic groups. Ov
erall survival favored AML and ALL patients with higher CD38 levels. Multiv
ariate analysis revealed CD38 expression to be an independent outcome predi
ctor in AML, but not in ALL. (C) 2000 Elsevier Science Ltd. All rights rese
rved.