Downregulation of ZNF365 by methylation predicts poor prognosis in patients with colorectal cancer by decreasing phospho‑p53 (Ser15) expression

Wang,Chan; Liu,Shuiping; Kuang,Yeye; Hu,Xiaotong; Fang,Xiao

doi:10.3892/ol.2020.11946

Downregulation of ZNF365 by methylation predicts poor prognosis in patients with colorectal cancer by decreasing phospho‑p53 (Ser15) expression

Authors:
- Chan Wang
- Shuiping Liu
- Yeye Kuang
- Xiaotong Hu
- Xiao Fang
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Affiliations: Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China, Department of Cancer Pharmacology and Key Laboratory of Elemene Class Anti‑Cancer Chinese Medicine of Zhejiang Province, Holistic Integrative Pharmacy Institutes, College of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang 310012, P.R. China, Department of Anesthesiology and Key Laboratory of Biotherapy of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
Published online on: August 5, 2020 https://doi.org/10.3892/ol.2020.11946
Article Number: 85
Copyright: © Wang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

ZNF365 is a transcription factor that plays important roles in different types of cancer, such as colorectal cancer, breast cancer and hepatocellular carcinoma. ZNF365 can promote stalled replication fork recovery to prevent genomic instability, which is a notable feature of sporadic and hereditary types of cancers. However, the function of ZNF365 in the tumor progression of colorectal cancer (CRC) remains unclear. Thus, immunohistochemical staining was used to investigate the association between ZNF365 expression and the clinicopathological characteristics of patients with colorectal cancer. The results demonstrated that ZNF365 protein was strongly expressed in the nucleus and cytoplasm of normal colorectal mucosa. Furthermore ZNF365, which is methylated and downregulated in most cancer cell lines and tissues, was significantly associated with lymph node metastasis (P=0.015), depth of invasion (P=0.031) and histopathological grading (P=0.042). A positive correlation was observed between ZNF365 expression and phosphorylated (P)‑p53 (Ser15) protein expression (r=0.18; P=0.038). Survival analysis indicated that patients with high ZNF365 expression had a higher survival rate than those with low ZNF365 expression (P=0.009), suggesting that ZNF365 may be an independent prognostic factor for survival in colorectal cancer (P=0.046). Taken together, the results of the present study demonstrated that ZNF365 was frequently inactivated by promoter methylation and independently predicted poor prognosis in patients with colorectal cancer by downregulating P‑p53 (Ser15) expression.

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