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

[Article in Chinese]

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



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.


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


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.


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.

[PubMed - indexed for MEDLINE]
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