Mapping of chromosome 17 breakpoints in acute myeloid leukemias.
Oncogene
; 5(10): 1557-63, 1990 Oct.
Article
em En
| MEDLINE
| ID: mdl-1701231
ABSTRACT
The 17q11-21 chromosomal region is frequently involved in non-random structural rearrangements associated with the M1 and M2 subtypes of acute myeloid leukemias (AML), as well as with the 15;17 translocation typical of the promyelocytic subtype. A number of genes have been localized in this region including the c-erbA-1 and c-erbB-2 proto-oncogenes, the genes coding for the granulocyte-colony stimulating factor (G-CSF), the retinoic acid receptor alpha (RAR alpha) and the myeloperoxidase enzyme (MPO). However, the precise location of these genes in relationship to the 17q11-21 breakpoint(s) has not been determined. Using in situ hybridization on metaphase chromosomes, we established the position of the breakpoints in relationship to the c-erbA-1, c-erbB-2, G-CSF, RAR alpha and MPO loci in a series of AML cases bearing 17q11-21 rearrangements. We report (i) that the respective position of the five genes is centromere - c-erbA-1 - G-CSF - c-erbB-2 - RAR alpha - MPO - telomere; (ii) that the breakpoints of the various AML subtypes are variably located between the centromere and c-erbB-2 in M1 and M2; (iii) that the breakpoints are consistently located between c-erbB-2 and RAR alpha/MPO in M3; and (iv) that the breakpoint on chromosome 17 in the 15;17 translocation is located on 17q21 and not on 17q11-12 as previously reported.
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Base de dados:
MEDLINE
Assunto principal:
Cromossomos Humanos Par 17
/
Rearranjo Gênico
/
Leucemia Mieloide
Limite:
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
1990
Tipo de documento:
Article