Minimal residual disease with TEL-AML1 fusion transcript in childhood acute lymphoblastic leukaemia with t(12;21)

Noriko Satake, Hirofumi Kobayashi, Yukiko Tsunematsu, Hajime Kawasaki, Yasuo Horikoshi, Shoichi Koizumi, Yasuhiko Kaneko

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

We analysed the TEL-AML1 transcript using reverse transcription- polymerase chain reaction (RT-PCR) in order to detect minimal residual disease (MRD) in seven children with t(12;21)-associated B-lineage ALL. Leukaemic cells with the TEL-AML1 transcript appear to be very sensitive to chemotherapy, and may be eradicated in most patients if adequate chemotherapy is given. However, a small number of patients with t(12:21) ALL may relapse under the currently used chemotherapy, and we believe that RT-PCR for detecting MRD with the transcript is a suitable tool for monitoring the efficacy of chemotherapy or impending relapse in these patients. We analysed the TFL-AML1 transcript using reverse transcription-polymerase chain reaction (RT-PCR) in order to detect minimal residual disease (MRD) in seven children with t(12;21)-associated B-lineage ALL. Two sets of primers, TEL exon 5 and AML1 exon 3 or 4, detected two types of transcript in four patients and two other types in two other patients. The two different translocation breakpoints in the AML1 gene with or without splicing out of AML1 exon 3 seemed to result in these four types of transcript in leukaemia samples.

Original languageEnglish (US)
Pages (from-to)607-611
Number of pages5
JournalBritish Journal of Haematology
Volume97
Issue number3
StatePublished - 1997
Externally publishedYes

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Keywords

  • 12;21 translocation
  • childhood acute lymphoblastic leukaemia
  • minimal residual disease
  • RT-PCR
  • TEL-AML1 fusion transcript

ASJC Scopus subject areas

  • Hematology

Cite this

Satake, N., Kobayashi, H., Tsunematsu, Y., Kawasaki, H., Horikoshi, Y., Koizumi, S., & Kaneko, Y. (1997). Minimal residual disease with TEL-AML1 fusion transcript in childhood acute lymphoblastic leukaemia with t(12;21). British Journal of Haematology, 97(3), 607-611.