Tetraspanin 1 promotes invasiveness of cervical cancer cells

  • Authors:
    • Sebastian Hölters
    • Jelena Anacker
    • Lars Jansen
    • Katrin Beer-Grondke
    • Matthias Dürst
    • Ignacio Rubio
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  • Published online on: June 10, 2013     https://doi.org/10.3892/ijo.2013.1980
  • Pages: 503-512
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Abstract

Tetraspanins are a heterogeneous group of 4-transmembrane proteins that segregate into so-called tetraspanin-enriched microdomains (TEMs) along with other cell surface proteins such as integrins. TEMs of various types are reportedly involved in the regulation of cell growth, migration and invasion of several tumour cell types, both as suppressors or supporting structures. Tetraspanin 1 (Tspan1, NET-1), a member of the transmembrane 4 superfamily (TM4SF) of tetraspanins, is overexpressed in high-grade cervical intraepithelial neoplasia (CIN) and terminal carcinomas but its precise function in the context of carcinoma of the cervix uteri is not known. Here, we present a comprehensive investigation of the role of tetraspanin 1 in the cervical cancer cell lines SiHa and HeLa. We document that tetraspanin 1 increases the invasive potential of cervical cancer cells, whereas proliferation, growth in soft agar and adhesion are largely unaffected. In line with the latter findings, our data exclude the participation of testraspanin in integrin-mediated activation of focal adhesion kinase (FAK), paxillin and phosphoinositide-3-kinase (PI3K) and in EGFR-dependent signalling to the Ras/Erk pathway. In conclusion, our data argue against a role for tetraspanin 1 as a genuine mediator of cell surface receptor signalling but rather document a role for tetraspanin 1 in the control of cervical cancer cell motility and invasion.
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August 2013
Volume 43 Issue 2

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Hölters S, Anacker J, Jansen L, Beer-Grondke K, Dürst M and Rubio I: Tetraspanin 1 promotes invasiveness of cervical cancer cells. Int J Oncol 43: 503-512, 2013.
APA
Hölters, S., Anacker, J., Jansen, L., Beer-Grondke, K., Dürst, M., & Rubio, I. (2013). Tetraspanin 1 promotes invasiveness of cervical cancer cells. International Journal of Oncology, 43, 503-512. https://doi.org/10.3892/ijo.2013.1980
MLA
Hölters, S., Anacker, J., Jansen, L., Beer-Grondke, K., Dürst, M., Rubio, I."Tetraspanin 1 promotes invasiveness of cervical cancer cells". International Journal of Oncology 43.2 (2013): 503-512.
Chicago
Hölters, S., Anacker, J., Jansen, L., Beer-Grondke, K., Dürst, M., Rubio, I."Tetraspanin 1 promotes invasiveness of cervical cancer cells". International Journal of Oncology 43, no. 2 (2013): 503-512. https://doi.org/10.3892/ijo.2013.1980