Mammalian sterile-like 1 kinase inhibits TGFβ and EGF‑dependent regulation of invasiveness, migration and proliferation of HEC-1-A endometrial cancer cells

Attarha,Sanaz; Andersson,Sonia; Mints,Miriam; Souchelnytskyi,Serhiy

doi:10.3892/ijo.2014.2447

August-2014 Volume 45 Issue 2

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August-2014 Volume 45 Issue 2

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Article

Mammalian sterile-like 1 kinase inhibits TGFβ and EGF‑dependent regulation of invasiveness, migration and proliferation of HEC-1-A endometrial cancer cells

Authors:
- Sanaz Attarha
- Sonia Andersson
- Miriam Mints
- Serhiy Souchelnytskyi
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Affiliations: Department of Oncology-Pathology, Karolinska Institutet, Stockholm, SE-17176, Sweden, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, SE-17176, Sweden
Pages: 853-860
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Published online on: May 19, 2014

https://doi.org/10.3892/ijo.2014.2447
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Abstract

Transforming growth factor-β (TGFβ) and epidermal growth factor (EGF) are two potent regulators of tumorigenesis. Signaling cross-talk of TGFβ and EGF employs a number of regulators which define the impact on cell physiology. MST1 has recently been reported as a regulator of tumorigenesis and differentiation. To investigate the role of mammalian sterile-like 1 (MST1) in TGFβ and EGF signaling, we established transiently MST1‑transfected HEC-1-A endometrial cancer cells, and subjected the cells to treatment with TGFβ1, EGF and their combination. We report MST1 as a negative regulator of combined TGFβ and EGF signaling. We observed that enhanced expression of MST1 inhibited the combined action of TGFβ1 and EGF on cell invasiveness, migration and proliferation. Monitoring of the intracellular regulatory proteins showed that MST1 contribution to the TGFβ-EGF cross-talk may involve focal adhesion kinase and E-cadherin, but not activation of Smad2. Our data unveiled the role of MST1 as a negative feedback for TGFβ1‑ and EGF‑regulated cell invasiveness, migration and proliferation.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Mammalian sterile-like 1 kinase inhibits TGFβ and EGF‑dependent regulation of invasiveness, migration and proliferation of HEC-1-A endometrial cancer cells

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