Possible correlation between fusion pattern of BCR/ABL mRNA and clinical response to α-interferon in chronic myelogenous leukemia

Tokiko Inoue, Arinobu Tojo, Daisuke Tsuchimoto, Shinichiro Okamoto, Hiromi Ogura, Kenzaburo Tani, Keiya Ozawa, Masabumi Shibuya, Shigetaka Asano

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Abstract

Twenty six patients with Philadelphia chromosome (Ph1) positive chronic myelogenous leukemia (CML) treated with IFN-α were classified on the basis of the fusion pattern of BCR/ABL chimeric mRNA determined by a reverse-transcriptase-polymerase chain reaction (RT-PCR) method. The relationship between the fusion pattern of BCR/ABL mRNA and the clinical outcome was also analysed. Twelve patients showed M-bcr exon 3/ABL exon 2 (B3/A2) chimeric mRNA and nine had M-bcr exon 2/ABL exon 2 (B2/A2) mRNA. Eleven of the 12 patients with B3/A2 achieved complete hematological response with IFN-α therapy, as did three of the nine patients with B2/A2. The mean duration to blastic crisis was significantly longer in the B3/A2 patients (mean 52.4 months) than in the B2/A2 patients (mean 26.2 months) (p<0.01). These results suggest that the fusion pattern of BCR/ABL mRNA may affect the therapeutic response to IFN-α and clinical outcome in CML patients.

Original languageEnglish
Pages (from-to)948-951
Number of pages4
JournalLeukemia
Volume6
Issue number9
Publication statusPublished - 1992 Sep
Externally publishedYes

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Leukemia, Myelogenous, Chronic, BCR-ABL Positive
Interferons
Exons
Messenger RNA
Philadelphia Chromosome
Reverse Transcriptase Polymerase Chain Reaction

ASJC Scopus subject areas

  • Hematology
  • Cancer Research

Cite this

Possible correlation between fusion pattern of BCR/ABL mRNA and clinical response to α-interferon in chronic myelogenous leukemia. / Inoue, Tokiko; Tojo, Arinobu; Tsuchimoto, Daisuke; Okamoto, Shinichiro; Ogura, Hiromi; Tani, Kenzaburo; Ozawa, Keiya; Shibuya, Masabumi; Asano, Shigetaka.

In: Leukemia, Vol. 6, No. 9, 09.1992, p. 948-951.

Research output: Contribution to journalArticle

Inoue, T, Tojo, A, Tsuchimoto, D, Okamoto, S, Ogura, H, Tani, K, Ozawa, K, Shibuya, M & Asano, S 1992, 'Possible correlation between fusion pattern of BCR/ABL mRNA and clinical response to α-interferon in chronic myelogenous leukemia', Leukemia, vol. 6, no. 9, pp. 948-951.
Inoue, Tokiko ; Tojo, Arinobu ; Tsuchimoto, Daisuke ; Okamoto, Shinichiro ; Ogura, Hiromi ; Tani, Kenzaburo ; Ozawa, Keiya ; Shibuya, Masabumi ; Asano, Shigetaka. / Possible correlation between fusion pattern of BCR/ABL mRNA and clinical response to α-interferon in chronic myelogenous leukemia. In: Leukemia. 1992 ; Vol. 6, No. 9. pp. 948-951.
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AU - Ogura, Hiromi

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