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1.
Life Sci Alliance ; 6(1)2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36375842

RESUMEN

Epithelial-mesenchymal transition (EMT) is a cellular mechanism used by cancer cells to acquire migratory and stemness properties. In this study, we show, through in vitro, in vivo, and 3D culture experiments, that the mitochondrial protein LACTB manifests tumor suppressor properties in ovarian cancer. We show that LACTB is significantly down-regulated in epithelial ovarian cancer cells and clinical tissues. Re-expression of LACTB negatively effects the growth of cancer cells but not of non-tumorigenic cells. Mechanistically, we show that LACTB leads to differentiation of ovarian cancer cells and loss of their stemness properties, which is achieved through the inhibition of the EMT program and the LACTB-dependent down-regulation of Snail2/Slug transcription factor. This study uncovers a novel role of LACTB in ovarian cancer and proposes new ways of counteracting the oncogenic EMT program in this model system.


Asunto(s)
Transición Epitelial-Mesenquimal , Neoplasias Ováricas , Factores de Transcripción de la Familia Snail , beta-Lactamasas , Femenino , Humanos , beta-Lactamasas/genética , beta-Lactamasas/metabolismo , Carcinogénesis , Línea Celular Tumoral , Transición Epitelial-Mesenquimal/genética , Proteínas de la Membrana/genética , Proteínas de la Membrana/metabolismo , Proteínas Mitocondriales/genética , Proteínas Mitocondriales/metabolismo , Neoplasias Ováricas/genética , Neoplasias Ováricas/metabolismo , Neoplasias Ováricas/patología , Factores de Transcripción de la Familia Snail/genética , Factores de Transcripción de la Familia Snail/metabolismo
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