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Article

Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma

  • Authors:
    • Zhen Li
    • Zesong Yang
    • Xi Peng
    • Ying Li
    • Qiong Liu
    • Jianbin Chen
  • View Affiliations / Copyright

    Affiliations: Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China, Department of Hematology, Chongqing Three Gorges Central Hospital, Chongqing, P.R. China, Department of Emergency, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
  • Pages: 832-838
    |
    Published online on: May 29, 2014
       https://doi.org/10.3892/mmr.2014.2285
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Abstract

The gene encoding protocadherin-10 (PCDH10), a member of the cadherin superfamily, has been recently identified as a tumor suppressor gene (TSG). PCDH10 plays important roles in the apoptosis of tumor cells in some cancer types. However, the exact role of PCDH10 in multiple myeloma (MM) is largely unknown. Increasing evidence has suggested that the activation of nuclear factor-κB (NF-κB) is crucial for apoptosis in myeloma cells. In this study, we investigated the pro-apoptotic effect of PCDH10 on myeloma cells and whether this effect may involve inhibition of the NF-κB pathway. We report here, for the first time to the best of our knowledge, that PCDH10 markedly induces apoptosis of myeloma cells, accompanied by an increase in activated caspase-3 and poly-ADP‑ribose polymerase (PARP) levels, and inhibited expression of anti‑apoptotic proteins. We also demonstrate that PCDH10 inhibits the activation of NF-κB, by inhibiting the expression of the inhibitor of nuclear factor-κB (IκB) kinase subunits (IKKs) and the phosphorylation of IκBα. Moreover, the constitutive NF-κB DNA-binding activity and the expression of the NF-κB‑regulated proteins cyclooxygenase-2 (COX-2), vascular endothelial growth factor (VEGF) and intercellular adhesion molecule 1 (ICAM-1) were inhibited by PCDH10 in MM cells. These results suggest that PCDH10 induces myeloma cell apoptosis, probably by inhibiting the NF-κB pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Li Z, Yang Z, Peng X, Li Y, Liu Q and Chen J: Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma. Mol Med Rep 10: 832-838, 2014.
APA
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., & Chen, J. (2014). Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma. Molecular Medicine Reports, 10, 832-838. https://doi.org/10.3892/mmr.2014.2285
MLA
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., Chen, J."Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma". Molecular Medicine Reports 10.2 (2014): 832-838.
Chicago
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., Chen, J."Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma". Molecular Medicine Reports 10, no. 2 (2014): 832-838. https://doi.org/10.3892/mmr.2014.2285
Copy and paste a formatted citation
x
Spandidos Publications style
Li Z, Yang Z, Peng X, Li Y, Liu Q and Chen J: Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma. Mol Med Rep 10: 832-838, 2014.
APA
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., & Chen, J. (2014). Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma. Molecular Medicine Reports, 10, 832-838. https://doi.org/10.3892/mmr.2014.2285
MLA
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., Chen, J."Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma". Molecular Medicine Reports 10.2 (2014): 832-838.
Chicago
Li, Z., Yang, Z., Peng, X., Li, Y., Liu, Q., Chen, J."Nuclear factor-κB is involved in the protocadherin-10-mediated pro-apoptotic effect in multiple myeloma". Molecular Medicine Reports 10, no. 2 (2014): 832-838. https://doi.org/10.3892/mmr.2014.2285
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