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Phosphorylation-dependent stabilization of MZF1 upregulates N-cadherin expression during protein kinase CK2-mediated epithelial-mesenchymal transition

Authors
 Hyeonseok Ko  ;  Seongrak Kim  ;  Kyungmi Yang  ;  Kunhong Kim 
Citation
 Oncogenesis, Vol.7(3) : 27, 2018 
Journal Title
 Oncogenesis 
Issue Date
2018
Abstract
Epithelial-mesenchymal transition (EMT) is a critical process in invasion and metastasis of cancer cells. E-cadherin to N-cadherin switching is considered a molecular hallmark of EMT. Recently, we reported that increased CK2 activity fully induces E-cadherin to N-cadherin switching, but the molecular mechanisms of N-cadherin upregulation are unknown. In this study, we examined how N-cadherin is upregulated by CK2. N-cadherin promoter analysis and ChIP analysis identified and confirmed myeloid zinc finger 1 (MZF1) as an N-cadherin transcription factor. Molecular analysis showed that MZF1 directly interacts with CK2 and is phosphorylated at serine 27. Phosphorylation stabilizes MZF1 and induces transcription of N-cadherin. MZF1 knockdown (MKD) in N-cadherin-expressing cancer cells downregulates N-cadherin expression and reverts the morphology from spindle and fibroblast-like to a rounded, epithelial shape. In addition, we showed that that MKD reduced the motility and invasiveness of N-cadherin-expressing cancer cells. Collectively, these data indicate that N-cadherin upregulation in CK2-mediated E-cadherin to N-cadherin switching is dependent on phosphorylation-mediated MZF1 stabilization. CK2 could be a good therapeutic target for the prevention of metastasis.
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DOI
10.1038/s41389-018-0035-9
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Biochemistry and Molecular Biology (생화학-분자생물학교실)
Yonsei Authors
김건홍(Kim, Kun Hong) ORCID logo https://orcid.org/0000-0001-5639-6372
김성락(Kim, Seong Rak)
양경미(Yang, Kyung Mi)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/162207
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