Abstract:
:Acute promyelocytic leukemias (APLs) are characterized by a translocation that involves chromosomes 15 and 17. The translocation breakpoints have recently been identified and shown to involve the RAR-alpha gene on 17 and myl on 15. Here we report Southern blotting analysis of 26 APLs, including cases with normal karyotypes and atypical morphology, which showed RAR-alpha rearrangements in 92% cases, myl rearrangements in 73%, and either RAR-alpha or myl rearrangements in 100%. Despite a negative clinical and morphologic picture, DNA rearrangement analysis showed that neoplastic promyelocytes persisted in the bone marrow of two patients sampled after induction chemotherapy. Therefore, the RAR-alpha and myl rearrangements provide molecular markers for accurately diagnosing APLs and monitoring the course of the disease during and after chemotherapy.
journal_name
Bloodjournal_title
Bloodauthors
Biondi A,Rambaldi A,Alcalay M,Pandolfi PP,Lo Coco F,Diverio D,Rossi V,Mencarelli A,Longo L,Zangrilli Dsubject
Has Abstract,Author List Incompletepub_date
1991-04-01 00:00:00pages
1418-22issue
7eissn
0006-4971issn
1528-0020journal_volume
77pub_type
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