Document Detail

Coexistence of Philadelphia chromosome positive cells with and without der(9) deletion in a patient with chronic myelogenous leukemia.
MedLine Citation:
PMID:  16434314     Owner:  NLM     Status:  MEDLINE    
Recently, large deletions adjacent to the Philadelphia (Ph) translocation breakpoint on the derivative chromosome 9 have been reported to be found in a substantial number of patients with chronic myelogenous leukemia (CML). The existence of der(9) deletion is reported as a powerful indicator of a poor prognosis. So far, der(9) deletion is considered to be generated when the Ph translocation occurs, because when der(9) deletion is found, it is detected in all the Ph-positive (Ph+) cells of a particular CML patient. On FISH examination of 47 Vietnamese CML patients, we found 11 patients carrying der(9) deletion. Among these, two patients harbored Ph+ metaphase cells with der(9) deletion and also Ph+ cells without it. In CML patients with der(9) deletion, reportedly no ABL/BCR transcript is detected. In these two patients, the proportion of Ph+ cells without der(9) deletion was much smaller than that of the cells with der(9) deletion. Nevertheless, we detected a ABL/BCR (1b-b4) transcript in the two patients. This is further evidence for the existence of Ph+ cells without der(9) deletion. It is possible that in some CML patients, der(9) deletion is generated in the progression of the disease.
Phan Thi Xinh; Hoang Anh Vu; Huynh Nghia; Nguyen Tan Binh; Tran Van Be; Tran Van Binh; Katsushi Tokunaga; Yuko Sato
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Cancer genetics and cytogenetics     Volume:  164     ISSN:  0165-4608     ISO Abbreviation:  Cancer Genet. Cytogenet.     Publication Date:  2006 Jan 
Date Detail:
Created Date:  2006-01-25     Completed Date:  2006-03-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7909240     Medline TA:  Cancer Genet Cytogenet     Country:  United States    
Other Details:
Languages:  eng     Pagination:  122-7     Citation Subset:  IM    
Division of Ultrafine Structure, Department of Pathology, Research Institute of International Medical Center of Japan, Toyama 1-21-1, Shinjuku-ku, Tokyo 162-0052, Japan.
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MeSH Terms
Chromosome Aberrations
Chromosome Deletion*
Fusion Proteins, bcr-abl / genetics
In Situ Hybridization, Fluorescence
Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy,  genetics*,  pathology*
Middle Aged
Reg. No./Substance:
0/Fusion Proteins, bcr-abl

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