Abstract:
:Epigenetic alteration of tumor suppression gene is one of the most significant indicators in human esophageal squamous cell carcinoma (ESCC). In this study, we identified a novel ESCC hypermethylation biomarker ZNF132 by integrative computational analysis to comprehensive genome-wide DNA methylation microarray dataset. We validated the hypermethylation status of ZNF132 in 91 Chinese Han ESCC patients and adjacent normal tissues with methylation target bisulfite sequencing (MTBS) assay. Meanwhile, ZNF132 gene silencing mediated by hypermethylation was confirmed in both solid tissues and cancer cell lines. What is more, we found that in vitro overexpression of ZNF132 in ESCC cells could significantly reduce the abilities of the cell in growth, migration and invasion, and tumorigenicity of cells in a nude mouse model. We validated the Sp1-binding site in the ZNF132 promoter region with chromatin immunoprecipitation assay and demonstrated that the hypermethylation status could reduce the Sp1 transcript factor activity. Our results suggest that ZNF132 plays an important role in the development of ESCC as a tumor suppressor gene and support the underlying mechanism caused by the DNA hypermethylation-mediated Sp1-binding decay and gene silencing.
journal_name
Cell Death Disjournal_title
Cell death & diseaseauthors
Jiang D,He Z,Wang C,Zhou Y,Li F,Pu W,Zhang X,Feng X,Zhang M,Yecheng X,Xu Y,Jin L,Guo S,Wang J,Wang Mdoi
10.1038/s41419-018-1236-zsubject
Has Abstractpub_date
2018-12-18 00:00:00pages
1issue
1issn
2041-4889pii
10.1038/s41419-018-1236-zjournal_volume
10pub_type
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