Open Access

Deficiency of SUMO-specific protease 1 induces arsenic trioxide-mediated apoptosis by regulating XBP1 activity in human acute promyelocytic leukemia

  • Authors:
    • Fei‑Fei Wang
    • Ming‑Zhu Liu
    • Yi Sui
    • Qing Cao
    • Bo Yan
    • Mei‑Ling Jin
    • Xi Mo
  • View Affiliations

  • Published online on: September 21, 2016     https://doi.org/10.3892/ol.2016.5162
  • Pages: 3755-3762
  • Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Small ubiquitin-like modifier (SUMO)/sentrin‑specific protease 1 (SENP1), a member of the SENP family, is highly expressed in several neoplastic tissues. However, the effect of SENP1 in acute promyelocytic leukemia (APL) has not been elucidated. In the present study, it was observed that SENP1 deficiency had no effect on the spontaneous apoptosis or differentiation of NB4 cells. Arsenic trioxide (As2O3) could induce the upregulation of endoplasmic reticulum (ER) stress, resulting in the apoptosis of NB4 cells. Additionally, knockdown of SENP1 significantly increased As2O3‑induced apoptosis in NB4 cells transfected with small interfering RNA targeting SENP1. SENP1 deficiency also increased the accumulation of SUMOylated X-box binding protein 1 (XBP1), which was accompanied by the downregulation of the messenger RNA expression and transcriptional activity of the XBP1 target genes endoplasmic reticulum‑localized DnaJ 4 and Sec61a, which were involved in ER stress and closely linked to the apoptosis of NB4 cells. Taken together, these results revealed that the specific de‑SUMOylation activity of SENP1 for XBP1 was involved in the ER stress‑mediated apoptosis caused by As2O3 treatment in NB4 cells, thus providing insight into potential therapeutic targets for APL treatment via manipulating XBP1 signaling during ER stress by targeting SENP1.
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November-2016
Volume 12 Issue 5

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

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Spandidos Publications style
Wang FF, Liu MZ, Sui Y, Cao Q, Yan B, Jin ML and Mo X: Deficiency of SUMO-specific protease 1 induces arsenic trioxide-mediated apoptosis by regulating XBP1 activity in human acute promyelocytic leukemia. Oncol Lett 12: 3755-3762, 2016
APA
Wang, F., Liu, M., Sui, Y., Cao, Q., Yan, B., Jin, M., & Mo, X. (2016). Deficiency of SUMO-specific protease 1 induces arsenic trioxide-mediated apoptosis by regulating XBP1 activity in human acute promyelocytic leukemia. Oncology Letters, 12, 3755-3762. https://doi.org/10.3892/ol.2016.5162
MLA
Wang, F., Liu, M., Sui, Y., Cao, Q., Yan, B., Jin, M., Mo, X."Deficiency of SUMO-specific protease 1 induces arsenic trioxide-mediated apoptosis by regulating XBP1 activity in human acute promyelocytic leukemia". Oncology Letters 12.5 (2016): 3755-3762.
Chicago
Wang, F., Liu, M., Sui, Y., Cao, Q., Yan, B., Jin, M., Mo, X."Deficiency of SUMO-specific protease 1 induces arsenic trioxide-mediated apoptosis by regulating XBP1 activity in human acute promyelocytic leukemia". Oncology Letters 12, no. 5 (2016): 3755-3762. https://doi.org/10.3892/ol.2016.5162