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Article

Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility

  • Authors:
    • Anne-Kristin Vahle
    • Britta Domikowsky
    • Christian Schwöppe
    • Hermann Krähling
    • Sabine Mally
    • Michael Schäfers
    • Sven Hermann
    • Victor Shahin
    • Jörg Haier
    • Albrecht Schwab
    • Christian Stock
  • View Affiliations / Copyright

    Affiliations: Institute of Physiology II, University of Münster, D-48149 Münster, Germany, Department of General and Visceral Surgery, University of Münster, D-48149 Münster, Germany, Department of Hematology and Oncology, University of Münster, D-48149 Münster, Germany, European Institute of Molecular Imaging, University of Münster, D-48149 Münster, Germany
  • Pages: 78-90
    |
    Published online on: October 31, 2013
       https://doi.org/10.3892/ijo.2013.2158
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Abstract

The activity of the Na+/H+ exchanger NHE1 is required for human melanoma cell adhesion and migration. The goal of the present study was to suppress mouse melanoma (B16V) cell invasion in vivo by inhibiting NHE1. Intravital observations in mobilized left liver lobes of laparotomized male Sprague-Dawley rats disclosed that five minutes after intra-arterial administration of the B16V cell suspension, cells adhered to the endothelia of liver sinusoidal capillaries and started to migrate into the surrounding liver tissue. In the presence of the NHE1-specific inhibitor cariporide, migration/invasion was reduced by about 50% while adhesion was not lowered. Time-lapse video microscopy and adhesion/invasion assays revealed that in vitro, blockade of NHE1 by cariporide i) significantly decreased the migratory speed of the cells and ii) completely inhibited the invasive behavior of both an artificial, basement membrane-like and a dermis-like matrix. Cells were more motile on the basement membrane and more invasive on the dermis-like matrix. Small-animal PET (positron-emission tomography) analyses of B16V metastasis in female C57BL/6 mice showed that, although NHE1 inhibition hardly affected the percentage of animals developing metastases or relapses, metastases seem to get directed to the lungs in cariporide-treated animals while animals feeding on the standard diet show metastases spread all over the body. We conclude that i) B16V cells prefer to invade a dermis-like rather than a basement membrane-like matrix; ii) the extracellular matrix (ECM) composition strongly impacts on NHE1-dependent in vitro cell motility and invasion; and iii) the lungs are metastasis‑prone and impair the efficiency of cariporide due to their ECM composition and the pulmonary interstitial (extravascular) pH.
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Copy and paste a formatted citation
Spandidos Publications style
Vahle A, Domikowsky B, Schwöppe C, Krähling H, Mally S, Schäfers M, Hermann S, Shahin V, Haier J, Schwab A, Schwab A, et al: Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility. Int J Oncol 44: 78-90, 2014.
APA
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M. ... Stock, C. (2014). Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility. International Journal of Oncology, 44, 78-90. https://doi.org/10.3892/ijo.2013.2158
MLA
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M., Hermann, S., Shahin, V., Haier, J., Schwab, A., Stock, C."Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility". International Journal of Oncology 44.1 (2014): 78-90.
Chicago
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M., Hermann, S., Shahin, V., Haier, J., Schwab, A., Stock, C."Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility". International Journal of Oncology 44, no. 1 (2014): 78-90. https://doi.org/10.3892/ijo.2013.2158
Copy and paste a formatted citation
x
Spandidos Publications style
Vahle A, Domikowsky B, Schwöppe C, Krähling H, Mally S, Schäfers M, Hermann S, Shahin V, Haier J, Schwab A, Schwab A, et al: Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility. Int J Oncol 44: 78-90, 2014.
APA
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M. ... Stock, C. (2014). Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility. International Journal of Oncology, 44, 78-90. https://doi.org/10.3892/ijo.2013.2158
MLA
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M., Hermann, S., Shahin, V., Haier, J., Schwab, A., Stock, C."Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility". International Journal of Oncology 44.1 (2014): 78-90.
Chicago
Vahle, A., Domikowsky, B., Schwöppe, C., Krähling, H., Mally, S., Schäfers, M., Hermann, S., Shahin, V., Haier, J., Schwab, A., Stock, C."Extracellular matrix composition and interstitial pH modulate NHE1-mediated melanoma cell motility". International Journal of Oncology 44, no. 1 (2014): 78-90. https://doi.org/10.3892/ijo.2013.2158
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