TY - JOUR
T1 - Acute leukemia with t(10;11)(p11-p15;q13-q23)
AU - Secco, Christiane
AU - Wiernik, Peter H.
AU - Bennett, John M.
AU - Paietta, Elisabeth
N1 - Funding Information:
authors and do not necessarily represent the official views of the National Cancer Institute. Further support was provided by the Chemotherapy Foundation.
Funding Information:
This publication was supported by NCI, DHHS grants CA21115 [ECOG Operations Office), CA14958 (Einstein Cancer Center), CA11083 (University of Rochester), and P30CA13330 (Einstein Cancer Center). Its contents are solely the responsibility of the
PY - 1996/1
Y1 - 1996/1
N2 - We report six patients with acute leukemia characterized by the presence of a t(10;11) (p11-p15;q13-q23), either as sole cytogenetic abnormality (three patients) or as part of a complex abnormal karyotype. The morphologic and cytochemical features of four patients were consistent with FAB-M5A, while two patients presented with FAB-L1 characteristics. By immunophenotyping, myeloid leukemia was diagnosed in five patients, including one patient with FAB-L1 leukemia who typed as terminal transferase (TdT)+, CD7 T-cell antigen+ acute myelomonocytic leukemia. Differentiated acute myeloid leukemia (AML) with expression of terminal transferase was found in two of the other cases and monocytic leukemia in two, with co-expression of T-cell antigens in one of them. The second FAB-L1 patient typed as undifferentiated acute lymphocytic leukemia (ALL) expressing myeloid antigens. Serial phenotypic studies in patient 3 during the course of the disease demonstrated a switch from monocytic to lymphoid morphology at the time of first and second relapse, which was paralleled by the appearance of a pre-T ALL immunophenotype with co-expression of the myeloid antigen CD33. These phenotypic changes occurred without apparent alteration in the genotype since t(10;11)(p11.2;q23) remained the only cytogenetic aberration at all stages of the disease. Our observations suggest that the (10;11) variant of 11q aberrations occurs in a bipotential myelomonocytic/T-lymphoid stem cell.
AB - We report six patients with acute leukemia characterized by the presence of a t(10;11) (p11-p15;q13-q23), either as sole cytogenetic abnormality (three patients) or as part of a complex abnormal karyotype. The morphologic and cytochemical features of four patients were consistent with FAB-M5A, while two patients presented with FAB-L1 characteristics. By immunophenotyping, myeloid leukemia was diagnosed in five patients, including one patient with FAB-L1 leukemia who typed as terminal transferase (TdT)+, CD7 T-cell antigen+ acute myelomonocytic leukemia. Differentiated acute myeloid leukemia (AML) with expression of terminal transferase was found in two of the other cases and monocytic leukemia in two, with co-expression of T-cell antigens in one of them. The second FAB-L1 patient typed as undifferentiated acute lymphocytic leukemia (ALL) expressing myeloid antigens. Serial phenotypic studies in patient 3 during the course of the disease demonstrated a switch from monocytic to lymphoid morphology at the time of first and second relapse, which was paralleled by the appearance of a pre-T ALL immunophenotype with co-expression of the myeloid antigen CD33. These phenotypic changes occurred without apparent alteration in the genotype since t(10;11)(p11.2;q23) remained the only cytogenetic aberration at all stages of the disease. Our observations suggest that the (10;11) variant of 11q aberrations occurs in a bipotential myelomonocytic/T-lymphoid stem cell.
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U2 - 10.1016/0165-4608(95)00165-4
DO - 10.1016/0165-4608(95)00165-4
M3 - Article
C2 - 8616782
AN - SCOPUS:0029883768
SN - 0165-4608
VL - 86
SP - 31
EP - 34
JO - Cancer Genetics and Cytogenetics
JF - Cancer Genetics and Cytogenetics
IS - 1
ER -
