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Article

Amygdalin inhibits the growth of renal cell carcinoma cells in vitro

  • Authors:
    • Eva Juengel
    • Anita Thomas
    • Jochen Rutz
    • Jasmina Makarevic
    • Igor Tsaur
    • Karen Nelson
    • Axel Haferkamp
    • Roman A. Blaheta
  • View Affiliations / Copyright

    Affiliations: Department of Urology, Goethe-University Hospital, D-60590 Frankfurt am Main, Germany, Department of Vascular and Endovascular Surgery, Goethe-University Hospital, D-60590 Frankfurt am Main, Germany
  • Pages: 526-532
    |
    Published online on: December 21, 2015
       https://doi.org/10.3892/ijmm.2015.2439
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Abstract

Although amygdalin is used by many cancer patients as an antitumor agent, there is a lack of information on the efficacy and toxicity of this natural compound. In the present study, the inhibitory effect of amygdalin on the growth of renal cell carcinoma (RCC) cells was examined. Amygdalin (10 mg/ml) was applied to the RCC cell lines, Caki-1, KTC-26 and A498, for 24 h or 2 weeks. Untreated cells served as controls. Tumor cell growth and proliferation were determined using MTT and BrdU tests, and cell cycle phases were evaluated. Expression of the cell cycle activating proteins cdk1, cdk2, cdk4, cyclin A, cyclin B, cyclin D1 and D3 as well as of the cell cycle inhibiting proteins p19 and p27 was examined by western blot analysis. Surface expression of the differentiation markers E- and N-cadherin was also investigated. Functional blockade by siRNA was used to determine the impact of several proteins on tumor cell growth. Amygdalin treatment caused a significant reduction in RCC cell growth and proliferation. This effect was correlated with a reduced percentage of G2/M-phase RCC cells and an increased percentage of cells in the G0/1-phase (Caki-1 and A498) or cell cycle arrest in the S-phase (KTC-26). Furthermore, amygdalin induced a marked decrease in cell cycle activating proteins, in particular cdk1 and cyclin B. Functional blocking of cdk1 and cyclin B resulted in significantly diminished tumor cell growth in all three RCC cell lines. Aside from its inhibitory effects on growth, amygdalin also modulated the differentiation markers, E- and N-cadherin. Hence, exposing RCC cells to amygdalin inhibited cell cycle progression and tumor cell growth by impairing cdk1 and cyclin B expression. Moreover, we noted that amygdalin affected differentiation markers. Thus, we suggest that amygdalin exerted RCC antitumor effects in vitro.
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Copy and paste a formatted citation
Spandidos Publications style
Juengel E, Thomas A, Rutz J, Makarevic J, Tsaur I, Nelson K, Haferkamp A and Blaheta RA: Amygdalin inhibits the growth of renal cell carcinoma cells in vitro. Int J Mol Med 37: 526-532, 2016.
APA
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K. ... Blaheta, R.A. (2016). Amygdalin inhibits the growth of renal cell carcinoma cells in vitro. International Journal of Molecular Medicine, 37, 526-532. https://doi.org/10.3892/ijmm.2015.2439
MLA
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K., Haferkamp, A., Blaheta, R. A."Amygdalin inhibits the growth of renal cell carcinoma cells in vitro". International Journal of Molecular Medicine 37.2 (2016): 526-532.
Chicago
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K., Haferkamp, A., Blaheta, R. A."Amygdalin inhibits the growth of renal cell carcinoma cells in vitro". International Journal of Molecular Medicine 37, no. 2 (2016): 526-532. https://doi.org/10.3892/ijmm.2015.2439
Copy and paste a formatted citation
x
Spandidos Publications style
Juengel E, Thomas A, Rutz J, Makarevic J, Tsaur I, Nelson K, Haferkamp A and Blaheta RA: Amygdalin inhibits the growth of renal cell carcinoma cells in vitro. Int J Mol Med 37: 526-532, 2016.
APA
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K. ... Blaheta, R.A. (2016). Amygdalin inhibits the growth of renal cell carcinoma cells in vitro. International Journal of Molecular Medicine, 37, 526-532. https://doi.org/10.3892/ijmm.2015.2439
MLA
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K., Haferkamp, A., Blaheta, R. A."Amygdalin inhibits the growth of renal cell carcinoma cells in vitro". International Journal of Molecular Medicine 37.2 (2016): 526-532.
Chicago
Juengel, E., Thomas, A., Rutz, J., Makarevic, J., Tsaur, I., Nelson, K., Haferkamp, A., Blaheta, R. A."Amygdalin inhibits the growth of renal cell carcinoma cells in vitro". International Journal of Molecular Medicine 37, no. 2 (2016): 526-532. https://doi.org/10.3892/ijmm.2015.2439
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