CENP‐50 is required for papilloma development in the two‐stage skin carcinogenesis model

CENP‐50/U is a component of the CENP‐O complex (CENP‐O/P/Q/R/U) and localizes to the centromere throughout the cell cycle. Aberrant expression of CENP‐50/U has been reported in many types of cancers. However, as Cenp‐50/U‐deficient mice die during early embryogenesis, its functions remain poorly und...

Descripción completa

Detalles Bibliográficos
Autores principales: Saito, Megumi, Kagawa, Naoko, Okumura, Kazuhiro, Munakata, Haruka, Isogai, Eriko, Fukagawa, Tatsuo, Wakabayashi, Yuichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Original Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7419024/
https://www.ncbi.nlm.nih.gov/pubmed/32535988
http://dx.doi.org/10.1111/cas.14533
Descripción
Sumario:CENP‐50/U is a component of the CENP‐O complex (CENP‐O/P/Q/R/U) and localizes to the centromere throughout the cell cycle. Aberrant expression of CENP‐50/U has been reported in many types of cancers. However, as Cenp‐50/U‐deficient mice die during early embryogenesis, its functions remain poorly understood in vivo. To investigate the role of Cenp‐50/U in skin carcinogenesis, we generated Cenp‐50/U conditional knockout (K14Cre(ER)‐Cenp‐50/U (fl/fl)) mice and subjected them to the 7,12‐dimethylbenz(a)anthracene (DMBA)/terephthalic acid (TPA) chemical carcinogenesis protocol. As a result, early‐stage papillomas decreased in Cenp‐50/U‐deficient mice. In contrast, Cenp‐50/U‐deficient mice demonstrated almost the same carcinoma incidence as control mice. Furthermore, mRNA expression analysis using DMBA/TPA‐induced papillomas and carcinomas revealed that Cenp‐50/U expression levels in papillomas were significantly higher than in carcinomas. These results suggest that Cenp‐50/U functions mainly in early papilloma development and it has little effect on malignant conversion.

Ejemplares similares