LY75 Ablation Mediates Mesenchymal-Epithelial Transition (MET) in Epithelial Ovarian Cancer (EOC) Cells Associated with DNA Methylation Alterations and Suppression of the Wnt/ß-Catenin Pathway.
Int J Mol Sci
; 21(5)2020 Mar 07.
Article
em En
| MEDLINE
| ID: mdl-32156068
ABSTRACT
Growing evidence demonstrates that epithelial-mesenchymal transition (EMT) plays an important role in epithelial ovarian cancer (EOC) progression and spreading; however, its molecular mechanisms remain poorly defined. We have previously shown that the antigen receptor LY75 can modulate EOC cell phenotype and metastatic potential, as LY75 depletion directed mesenchymal-epithelial transition (MET) in EOC cell lines with mesenchymal phenotype. We used the LY75-mediated modulation of EMT as a model to investigate for DNA methylation changes during EMT in EOC cells, by applying the reduced representation bisulfite sequencing (RRBS) methodology. Numerous genes have displayed EMT-related DNA methylation patterns alterations in their promoter/exon regions. Ten selected genes, whose DNA methylation alterations were further confirmed by alternative methods, were further identified, some of which could represent new EOC biomarkers/therapeutic targets. Moreover, our methylation data were strongly indicative for the predominant implication of the Wnt/ß-catenin pathway in the EMT-induced DNA methylation variations in EOC cells. Consecutive experiments, including alterations in the Wnt/ß-catenin pathway activity in EOC cells with a specific inhibitor and the identification of LY75-interacting partners by a proteomic approach, were strongly indicative for the direct implication of the LY75 receptor in modulating the Wnt/ß-catenin signaling in EOC cells.
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Base de dados:
MEDLINE
Assunto principal:
Neoplasias Ovarianas
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Antígenos CD
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Antígenos de Histocompatibilidade Menor
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Receptores de Superfície Celular
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Metilação de DNA
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Lectinas Tipo C
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Beta Catenina
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Transição Epitelial-Mesenquimal
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Via de Sinalização Wnt
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Carcinoma Epitelial do Ovário
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article