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Serum- and Glucocorticoid-induced Kinase Sgk1 Directly Promotes the Differentiation of Colorectal Cancer Cells and Restrains Metastasis.
Lee, Lennard Y W; Woolley, Connor; Starkey, Thomas; Biswas, Sujata; Mirshahi, Tia; Bardella, Chiara; Segditsas, Stefania; Irshad, Shazia; Tomlinson, Ian.
Afiliação
  • Lee LYW; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom. L.lee.2@bham.ac.uk.
  • Woolley C; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
  • Starkey T; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
  • Biswas S; Cancer Cell Biology Group, Oxford Centre for Cancer Gene Research, Wellcome Centre for Human Genetics, University of Oxford, Oxford, United Kingdom.
  • Mirshahi T; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
  • Bardella C; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
  • Segditsas S; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
  • Irshad S; Molecular Mechanisms of Colorectal Cancer Group, Nuffield Department of Medicine, Oxford, United Kingdom.
  • Tomlinson I; Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, United Kingdom.
Clin Cancer Res ; 25(2): 629-640, 2019 01 15.
Article em En | MEDLINE | ID: mdl-30322876
ABSTRACT

PURPOSE:

The molecular events that determine intestinal cell differentiation are poorly understood and it is unclear whether it is primarily a passive event or an active process. It is clinically important to gain a greater understanding of the process, because in colorectal cancer, the degree of differentiation of a tumor is associated with patient survival. SGK1 has previously been identified as a gene that is principally expressed in differentiated intestinal cells. In colorectal cancer, there is marked downregulation of SGK1 compared with normal tissue.Experimental

Design:

An inducible SGK1 viral overexpression system was utilized to induce reexpression of SGK1 in colorectal cancer cell lines. Transcriptomic and phenotypic analyses of these colorectal cancer lines was performed and validation in mouse and human cohorts was performed.

RESULTS:

We demonstrate that SGK1 is upregulated in response to, and an important controller of, intestinal cell differentiation. Reexpression of SGK1 in colorectal cancer cell lines results in features of differentiation, decreased migration rates, and inhibition of metastasis in an orthotopic xenograft model. These effects may be mediated, in part, by SGK1-induced PKP3 expression and increased degradation of MYC.

CONCLUSIONS:

Our results suggest that SGK1 is an important mediator of differentiation of colorectal cells and may inhibit colorectal cancer metastasis.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Colorretais / Proteínas Serina-Treonina Quinases / Proteínas Imediatamente Precoces Tipo de estudo: Prognostic_studies Limite: Animals / Female / Humans Idioma: En Revista: Clin Cancer Res Assunto da revista: NEOPLASIAS Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Neoplasias Colorretais / Proteínas Serina-Treonina Quinases / Proteínas Imediatamente Precoces Tipo de estudo: Prognostic_studies Limite: Animals / Female / Humans Idioma: En Revista: Clin Cancer Res Assunto da revista: NEOPLASIAS Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Reino Unido