Generation of FISH Probes Using Laser Microbeam Microdissection and Application to Clinical Molecular Cytogenetics

  • Shim, Sung-Han (Department of Medical Genetics, College of Medicine, College of Medicine, Hanyang University) ;
  • Kyhm, Jee-Hong (Department of Medical Genetics, College of Medicine, College of Medicine, Hanyang University) ;
  • Chung, Sung-Ro (Department of Obstetrics and Gynecology, College of Medicine, Hanyang University) ;
  • Kim, Seung-Ryong (Department of Obstetrics and Gynecology, College of Medicine, Hanyang University) ;
  • Park, Moon-Il (Department of Obstetrics and Gynecology, College of Medicine, Hanyang University) ;
  • Lee, Chul-Hoon (Department of Medical Genetics, College of Medicine, College of Medicine, Hanyang University) ;
  • Cho, Youl-Hee (Department of Medical Genetics, College of Medicine, College of Medicine, Hanyang University)
  • 발행 : 2007.07.31

초록

Chromosome microdissection and the reverse FISH technique is one of the most useful methods for the identification of structurally abnormal chromosomes. In particular, the laser microbeam microdissection (LMM) method allows rapid isolation of a target chromosome or a specific region of chromosomes without damage of genetic materials and contamination. Isolated chromosomes were directly amplified by the degenerate oligonucleotide-primed polymerase chain reaction (DOP-PCR), and then the FISH probes labeled with spectrum green- or spectrum red-dUTP were generated by nick-translation. Whole chromosome painting (WCP) probes were successfully generated from only 5 copies of the chromosome. With this method, we produced 24 WCP probes for each human chromosome. We also tried to characterize a marker chromosome, which seemed to be originated from chromosome 11 on conventional banding technique. The marker chromosomes were isolated by the LMM method and analyzed by reverse FISH. We elucidated that the marker chromosome was originated from the short arm of chromosome 5 ($5p11{\to}pter$). A fully automated and computer-controlled LMM method is a very simple laboratory procedure, and enables rapid and precise characterization of various chromosome abnormalities.

키워드

참고문헌

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