Epigenetic Regulation of Gfi1 in Endocrine-Related Cancers: A Role Regulating Tumor Growth
Authors
Ashour Fernández, Nadia; Angulo Cuesta, Javier; González-Corpas , Ana; Orea , María J.; Toledo Lobo, María Del Val; [et al.]Identifiers
Permanent link (URI): http://hdl.handle.net/10017/59008DOI: 10.3390/ijms21134687
ISSN: 1422-0067
Date
2020-06-30Affiliation
Universidad de Alcalá. Departamento de Biología de Sistemas. Unidad docente Bioquímica y Biología molecularFunders
Instituto de Salud Carlos III
Bibliographic citation
International Journal of Molecular Sciences, 2020, v. 21, n. 13, p. 4687-
Keywords
Prostate cancer
Breast cancer
Gfi1
DNA methylation
Project
info:eu-repo/grantAgreement/ISCIII//PI16%2F594/ES//
info:eu-repo/grantAgreement/ISCIII//PI11%2F608/ES//
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Rights
© 2020 by the authors
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Access rights
info:eu-repo/semantics/openAccess
Abstract
Prostate and breast cancer constitute the most common cancers among men and women worldwide. The aging population is one of the main risk factors for prostate and breast cancer development and accumulating studies link aging with epigenetic changes. Growth factor independence-1 (Gfi1) is a transcriptional repressor with an important role in human malignancies, including leukemia, colorectal carcinoma, and lung cancer, but its role in prostate and breast cancer is unknown. We have found that Gfi1 epigenetic silencing is a common event in prostate and breast cancer. Gfi1 re-expression in prostate and breast cancer cell lines displaying Gfi1 epigenetic silencing decreases cell proliferation, reduced colony formation density, and tumor growth in nude mice xenografts. In addition, we found that Gfi1 repress alpha 1-anti-trypsin (AAT) and alpha 1-anti-chymotrypsin (ACT) expression, two genes with important functions in cancer development, suggesting that Gfi1 silencing promotes tumor growth by increasing AAT and ACT expression in our system. Finally, Gfi1 epigenetic silencing could be a promising biomarker for prostate cancer progression because it is associated with shorter disease-free survival. In conclusion, our findings strongly indicate that Gfi1 epigenetic silencing in prostate and breast cancer could be a crucial step in the development of these two-well characterized endocrine related tumors.
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epigenic_regulation_IJMS_2020.pdf | 2.189Mb |
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