Persistence of E2A/PBX1 transcripts in t(1;19) childhood acute lymphoblastic leukemia: Correlation with chemotherapy intensity and clinical outcome

Carlo Lanza, Enrico Gottardi, Gianluca Gaidano, Claudia Vivenza, Adele Parziale, Fatima Perfetto, Marinella Fornaci, Elena Barisone, Enrico Madon, Giuseppe Basso, Giuseppe Saglio

Research output: Contribution to journalArticlepeer-review

Abstract

The occurrence of t(1;19) translocation was investigated by reverse transcriptase-polymerase chain reaction (RT-PCR) for the E2A/PBX1 hybrid message in a panel of 37 consecutive childhood acute lymphoblastic leukemias (ALLs). Three patients with B-precursor ALL were found to be positive at diagnosis and were re-tested during follow-up to assess the presence of minimal residual disease (MRD). Two of them became PCR-negative during treatment, whereas one remains positive 3 years after diagnosis. Since all three patients are presently in clinical and hematological complete remission, PCR detection of persistent E2A/PBX1 transcript does not seem to affect significantly the DFS at 3 years. However, the predictivity for an eventual late relapse still remains to be assessed.

Original languageEnglish
Pages (from-to)441-443
Number of pages3
JournalLeukemia Research
Volume20
Issue number5
DOIs
Publication statusPublished - May 1996
Externally publishedYes

Keywords

  • ALL
  • Childhood
  • E2A/PBX1
  • MRD
  • PCR
  • t(1;19)

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