Arsenic induced complete remission in a refractory T-ALL patient with a distinct T-cell clonal evolution without molecular complete remission: A case report

  • Authors:
    • Suijing Wu
    • Ling Xu
    • Xin Huang
    • Suxia Geng
    • Yan Xu
    • Shaohua Chen
    • Lijian Yang
    • Xiuli Wu
    • Janyu Weng
    • Xin Du
    • Yangqiu Li
  • View Affiliations

  • Published online on: May 5, 2016     https://doi.org/10.3892/ol.2016.4529
  • Pages: 4123-4130
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Abstract

Currently, arsenic trioxide therapy is widely used for the treatment of acute promyelocytic leukemia (APL), relapsed and refractory adult T-cell leukemia/lymphoma and myelodysplastic syndrome. Regarding the broad antitumor activity of arsenic, certain studies have been undertaken to test its efficacy in treating acute T-cell lymphoblastic leukemia (T‑ALL) cell lines and patients; however, to the best of our knowledge, no reports document that arsenic is able to induce the remission of T‑ALL patients. The present study reports the case of young male patient diagnosed with T‑ALL, with no significant response to common chemotherapy regimens, who finally achieved complete remission without minimal residual disease (as detected by flow cytometry) due to arsenic treatment. This result is encouraging, and the present study has shown that malignant TCRαβ+ cell clones can be detected at the molecular level using reverse transcription-polymerase chain reaction (PCR) combined with the GeneScan technique. The result is mainly based on the T‑cell receptor (TCR) Vβ1 clone (a 190-base pair PCR product that with the same complementarity determining region 3 length can be detected for all samples collected during various statuses) and on undetectable TCR Vγ subfamily members, at the time of disease diagnosis. It is important to analyze the dynamically changing TCR pool in leukemia patients during therapy. Although the molecular mechanism through which arsenic contributes to malignant clone elimination remains unclear in the case presented, the use of arsenic is expected to be effective for clinically treating refractory and relapsed T-ALL patients.
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June-2016
Volume 11 Issue 6

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Wu S, Xu L, Huang X, Geng S, Xu Y, Chen S, Yang L, Wu X, Weng J, Du X, Du X, et al: Arsenic induced complete remission in a refractory T-ALL patient with a distinct T-cell clonal evolution without molecular complete remission: A case report. Oncol Lett 11: 4123-4130, 2016.
APA
Wu, S., Xu, L., Huang, X., Geng, S., Xu, Y., Chen, S. ... Li, Y. (2016). Arsenic induced complete remission in a refractory T-ALL patient with a distinct T-cell clonal evolution without molecular complete remission: A case report. Oncology Letters, 11, 4123-4130. https://doi.org/10.3892/ol.2016.4529
MLA
Wu, S., Xu, L., Huang, X., Geng, S., Xu, Y., Chen, S., Yang, L., Wu, X., Weng, J., Du, X., Li, Y."Arsenic induced complete remission in a refractory T-ALL patient with a distinct T-cell clonal evolution without molecular complete remission: A case report". Oncology Letters 11.6 (2016): 4123-4130.
Chicago
Wu, S., Xu, L., Huang, X., Geng, S., Xu, Y., Chen, S., Yang, L., Wu, X., Weng, J., Du, X., Li, Y."Arsenic induced complete remission in a refractory T-ALL patient with a distinct T-cell clonal evolution without molecular complete remission: A case report". Oncology Letters 11, no. 6 (2016): 4123-4130. https://doi.org/10.3892/ol.2016.4529