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Article

The role of the WWOX gene in leukemia and its mechanisms of action

  • Authors:
    • Zhaolei Cui
    • Donghong Lin
    • Feng Cheng
    • Lingqing Luo
    • Lingying Kong
    • Jianping Xu
    • Jianda Hu
    • Fenghua Lan
  • View Affiliations / Copyright

    Affiliations: Department of Clinical Laboratory, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian 350004, P.R. China
  • Pages: 2154-2162
    |
    Published online on: March 22, 2013
       https://doi.org/10.3892/or.2013.2361
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Abstract

The WW domain-containing oxidoreductase (WWOX) gene which encompasses the common human fragile site FRA16D has been proposed as a putative tumor suppressor gene, and loss of WWOX expression has been found in several types of solid cancer. As the role of WWOX in human leukemia has not yet been fully elucidated, the present study examined the expression of WWOX in patients with different types of leukemia as well as in leukemia-derived cell lines. Based on the data, WWOX mRNA (WWOX) and protein (Wwox) were significantly reduced or absent in the leukemia patients as well as in the cell lines. In addition, a recombinant expression vector, pGC-FU-WWOX, was constructed and transfected WWOX cDNA into Jurkat cells (acute T-lymphoblastic leukemia) and K562 cells (chronic myeloid leukemia in erythroid crisis) which all lack endogenous Wwox. In vitro experiments indicated that restoration of Wwox in Jurkat and K562 cells significantly suppressed proliferation and colony formation. Of note, apoptosis was also induced by Wwox restoration. Furthermore, we traced the mechanisms underlying this process and found that Wwox restoration could trigger the mitochondrial pathway in leukemia. Our data provide evidence that WWOX exerts a role as a tumor suppressor gene in leukemia, possibly by inhibiting proliferation and promoting apoptosis via the mitochondrial pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Cui Z, Lin D, Cheng F, Luo L, Kong L, Xu J, Hu J and Lan F: The role of the WWOX gene in leukemia and its mechanisms of action. Oncol Rep 29: 2154-2162, 2013.
APA
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J. ... Lan, F. (2013). The role of the WWOX gene in leukemia and its mechanisms of action. Oncology Reports, 29, 2154-2162. https://doi.org/10.3892/or.2013.2361
MLA
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J., Hu, J., Lan, F."The role of the WWOX gene in leukemia and its mechanisms of action". Oncology Reports 29.6 (2013): 2154-2162.
Chicago
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J., Hu, J., Lan, F."The role of the WWOX gene in leukemia and its mechanisms of action". Oncology Reports 29, no. 6 (2013): 2154-2162. https://doi.org/10.3892/or.2013.2361
Copy and paste a formatted citation
x
Spandidos Publications style
Cui Z, Lin D, Cheng F, Luo L, Kong L, Xu J, Hu J and Lan F: The role of the WWOX gene in leukemia and its mechanisms of action. Oncol Rep 29: 2154-2162, 2013.
APA
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J. ... Lan, F. (2013). The role of the WWOX gene in leukemia and its mechanisms of action. Oncology Reports, 29, 2154-2162. https://doi.org/10.3892/or.2013.2361
MLA
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J., Hu, J., Lan, F."The role of the WWOX gene in leukemia and its mechanisms of action". Oncology Reports 29.6 (2013): 2154-2162.
Chicago
Cui, Z., Lin, D., Cheng, F., Luo, L., Kong, L., Xu, J., Hu, J., Lan, F."The role of the WWOX gene in leukemia and its mechanisms of action". Oncology Reports 29, no. 6 (2013): 2154-2162. https://doi.org/10.3892/or.2013.2361
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