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[Establishment and application of multiplex FISH in detection of the complex chromosome abnormalities in leukemia].

[Article in Chinese]

Author information

  • 1State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Ruijin Hospital, Shanghai Second Medical University, Shanghai, 200025 P.R. China. sjchen@.stn.sh.cn

Abstract

OBJECTIVE:

To set up the technical system of multiplex fluorescence in situ hybridization M-FISH and to explore its application in detection of the complex chromosome abnormalities in leukemia.

METHODS:

The complex chromosome abnormalities of two leukemia patients were analyzed by the combination use of classical cytogenetics, chromosome painting (CP), FISH and M-FISH.

RESULTS:

In a case of acute lymphoblastic leukemia-L2, the complex karyotype: 46,XY,der(2)t(2;9),der(9)t(9;12;22) was identified by M-FISH, which was detected as 46,XY,der(9)t(9;12) by classical cytogenetics; In a case of acute monocytic leukemia-M5, the complex chromosome abnormalities: 46,XY,der(2)t(2;17), der(10)t(10;11;17), der(11)t(11;?) was revealed by M-FISH, which was confirmed by CP and FISH, and mixed lineage leukemia (MLL) gene was also found involved in this complex chromosome translocation.

CONCLUSION:

M-FISH was proved to be a powerful tool to examine the complicated karyotypes and hopefully to elucidate nearly all chromosomal aberrations in leukemia and other cancers.

PMID:
12362309
[PubMed - indexed for MEDLINE]
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