CD19 expression in acute leukemia is not restricted to the cytogenetically aberrant populations.

Abstract:

:Aberrant expression of the B lymphoid marker, CD19, in acute myeloid leukemia (AML) has frequently been associated with t(8;21)(q22;q22). However, AML cases lacking t(8;21) may occasionally express CD19. We asked whether CD19 expression is restricted to the karyotypically abnormal leukemic cells in primary leukemia samples. We compared, by fluorescence in situ hybridization, CD19-positive and CD19-negative cells from nine patients with acute leukemia: three non-t(8;21) AML, three t(8;21) AML and three cases of acute lymphoblastic leukemia. There were no significant differences in karyotypic pattern between the CD19-positive and CD19-negative leukemic cells, raising the concern that therapeutically targeting CD19 for acute leukemia may not eradicate all malignant clones.

journal_name

Leuk Lymphoma

journal_title

Leukemia & lymphoma

authors

Francis J,Dharmadhikari AV,Sait SN,Deeb G,Wallace PK,Thompson JE,Wang ES,Wetzler M

doi

10.3109/10428194.2012.754096

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

1517-20

issue

7

eissn

1042-8194

issn

1029-2403

journal_volume

54

pub_type

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