High expression of ubiquitin carboxyl‑terminal hydrolase 22 is associated with poor prognosis in hepatitis B virus‑associated liver cancer

  • Authors:
    • Yong Liao
    • Xingsi Liang
    • Wenjin Liang
    • Zeming Li
    • Yan Wang
    • Lin Wang
    • Siqi Zhen
    • Bo Tang
    • Zhenran Wang
  • View Affiliations

  • Published online on: March 15, 2019     https://doi.org/10.3892/ol.2019.10154
  • Pages: 5159-5168
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Abstract

Deubiquitinating enzymes regulate protein activity and cell homeostasis by removing ubiquitin moieties from various substrates. Ubiquitin carboxyl‑terminal hydrolase 22 (USP22) is a member of the deubiquitinating protease family and is associated with the development of several tumor types. A previous study demonstrated that USP22 is highly expressed in liver cancer, and its high expression is associated with resistance to chemotherapy. However, the role of USP22 in hepatitis B virus (HBV)‑associated liver cancer has not yet been elucidated. The current study demonstrated that USP22 was highly expressed in the tissues of patients with HBV‑associated liver cancer, and its high expression was associated with clinicopathological characteristics, including tumor size, clinical stage and prognosis. Further results indicated that USP22 may regulate the proliferative and apoptotic abilities of HepG2.2.15 cells. Additionally, investigation into the underlying mechanism, using small interfering RNA, revealed that the downregulation of USP22 inhibited proliferation and promoted apoptosis though the phosphoinositide 3‑kinase/protein kinase B signaling pathway. Therefore, USP22 has the potential to be used as an independent predictor of patient prognosis, as well as a therapeutic target for the treatment of HBV‑associated liver cancer.
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June 2019
Volume 17 Issue 6

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

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APA
Liao, Y., Liang, X., Liang, W., Li, Z., Wang, Y., Wang, L. ... Wang, Z. (2019). High expression of ubiquitin carboxyl‑terminal hydrolase 22 is associated with poor prognosis in hepatitis B virus‑associated liver cancer. Oncology Letters, 17, 5159-5168. https://doi.org/10.3892/ol.2019.10154
MLA
Liao, Y., Liang, X., Liang, W., Li, Z., Wang, Y., Wang, L., Zhen, S., Tang, B., Wang, Z."High expression of ubiquitin carboxyl‑terminal hydrolase 22 is associated with poor prognosis in hepatitis B virus‑associated liver cancer". Oncology Letters 17.6 (2019): 5159-5168.
Chicago
Liao, Y., Liang, X., Liang, W., Li, Z., Wang, Y., Wang, L., Zhen, S., Tang, B., Wang, Z."High expression of ubiquitin carboxyl‑terminal hydrolase 22 is associated with poor prognosis in hepatitis B virus‑associated liver cancer". Oncology Letters 17, no. 6 (2019): 5159-5168. https://doi.org/10.3892/ol.2019.10154