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2014-March Volume 31 Issue 3

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Article

Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia

  • Authors:
    • Fen Zhou
    • Yunyun Xu
    • Yining Qiu
    • Xiaoyan Wu
    • Zhiquan Zhang
    • Runming Jin
  • View Affiliations / Copyright

    Affiliations: Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
  • Pages: 1373-1379
    |
    Published online on: January 8, 2014
       https://doi.org/10.3892/or.2014.2969
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Abstract

Our previous study demonstrated that the dominant-negative Ikaros isoform 6 (Ik6) is overexpressed in Chinese children with newly diagnosed B-acute lymphoblastic leukemia (B-ALL) and is strongly associated with a poor outcome. The purpose of the present study was to further explore the function of Ik6 in B-ALL. The association between Ik6 expression as detected by real-time PCR and efficacy of chemotherapy was evaluated. The effect of the alteration in Ik6 on leukemic cell lines was assessed by in vitro gain-of-function and loss-of-function techniques. PCR analysis showed that Ik6 expression was decreased when patients completed induction chemotherapy and reached complete remission. Ik6 expression was significantly increased when patients suffered relapse. Stable transfection of Ik6 into the Nalm-6 cell line revealed that Ik6 enhanced proliferation of Nalm-6 cells through the promotion of G0/G1-to-S-phase transition and enhanced chemoresistance to chemotherapeutics through anti-apoptotic effects. However, Ik6 expression did not affect the invasion of Nalm-6 cells. In contrast, silencing of Ik6 in Sup-B15 cells significantly inhibited proliferation and increased chemosensitivity. The present study suggests that Ik6 may be a biological marker of chemosensitivity and relapse and Ik6 may provide a potential therapeutic strategy for ALL.
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Copy and paste a formatted citation
Spandidos Publications style
Zhou F, Xu Y, Qiu Y, Wu X, Zhang Z and Jin R: Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia. Oncol Rep 31: 1373-1379, 2014.
APA
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., & Jin, R. (2014). Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia. Oncology Reports, 31, 1373-1379. https://doi.org/10.3892/or.2014.2969
MLA
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., Jin, R."Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia". Oncology Reports 31.3 (2014): 1373-1379.
Chicago
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., Jin, R."Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia". Oncology Reports 31, no. 3 (2014): 1373-1379. https://doi.org/10.3892/or.2014.2969
Copy and paste a formatted citation
x
Spandidos Publications style
Zhou F, Xu Y, Qiu Y, Wu X, Zhang Z and Jin R: Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia. Oncol Rep 31: 1373-1379, 2014.
APA
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., & Jin, R. (2014). Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia. Oncology Reports, 31, 1373-1379. https://doi.org/10.3892/or.2014.2969
MLA
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., Jin, R."Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia". Oncology Reports 31.3 (2014): 1373-1379.
Chicago
Zhou, F., Xu, Y., Qiu, Y., Wu, X., Zhang, Z., Jin, R."Ik6 expression provides a new strategy for the therapy of acute lymphoblastic leukemia". Oncology Reports 31, no. 3 (2014): 1373-1379. https://doi.org/10.3892/or.2014.2969
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