Potentiation of mitotane action by rosuvastatin: New insights for adrenocortical carcinoma management

  • Authors:
    • Geoffrey Boulate
    • Larbi Amazit
    • Annabelle Naman
    • Atmane Seck
    • Angelo Paci
    • Anne Lombes
    • Eric Pussard
    • Eric Baudin
    • Marc Lombes
    • Ségolène Hescot
  • View Affiliations

  • Published online on: April 3, 2019     https://doi.org/10.3892/ijo.2019.4770
  • Pages: 2149-2156
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Abstract

Mitotane (also termed o,p'‑DDD) is the most effective therapy for advanced adrenocortical carcinoma (ACC). Mitotane‑induced dyslipidemia is treated with statins. Mitotane and statins are known to exert anti‑proliferative effects in vitro; however, the effects of statins have never been directly evaluated in patients with ACC and ACC cells, at least to the best of our knowledge. Thus, in this study, we aimed to examine the effects of the rosuvastatin on ACC cells. It has been shown that the combined use of mitotane and statins significantly increases the tumor control rate in patients with ACC; however, it would be of interest to elucidate the molecular mechanisms involved in this potentiation. In this study, we examined the effects of mitotane, rosuvastatin and their combination in NCI‑H295R human ACC cells using proliferation assays, gene expression analyses and free intracellular cholesterol measurements. The results revealed that mitotane dose‑dependently reduced cell viability, induced apoptosis and increased intracellular free cholesterol levels, considered as one of the key features of mitotane action, while rosuvastatin alone reduced cell viability and increased apoptosis at high concentrations. We also demonstrated that rosuvastatin potentiated the effects of mitotane by reducing cell viability, inducing apoptosis, increasing intracellular free cholesterol levels, and by decreasing the expression of 3‑hydroxy‑3‑methylglutaryl‑CoA reductase (HMGCR) and ATP binding cassette subfamily a member 1 (ABCA1), genes involved in cholesterol metabolism, and inhibiting steroidogenesis. Collectively, potentiating the effects of mitotane with the use of rosuvastatin may provide novel therapeutic strategies for ACC, given that the combination of these drugs, pending clinical validation, may lead to the better management of ACC.

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June 2019
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Copy and paste a formatted citation
APA
Boulate, G., Amazit, L., Naman, A., Seck, A., Paci, A., Lombes, A. ... Hescot, S. (2019). Potentiation of mitotane action by rosuvastatin: New insights for adrenocortical carcinoma management. International Journal of Oncology, 54, 2149-2156. https://doi.org/10.3892/ijo.2019.4770
MLA
Boulate, G., Amazit, L., Naman, A., Seck, A., Paci, A., Lombes, A., Pussard, E., Baudin, E., Lombes, M., Hescot, S."Potentiation of mitotane action by rosuvastatin: New insights for adrenocortical carcinoma management". International Journal of Oncology 54.6 (2019): 2149-2156.
Chicago
Boulate, G., Amazit, L., Naman, A., Seck, A., Paci, A., Lombes, A., Pussard, E., Baudin, E., Lombes, M., Hescot, S."Potentiation of mitotane action by rosuvastatin: New insights for adrenocortical carcinoma management". International Journal of Oncology 54, no. 6 (2019): 2149-2156. https://doi.org/10.3892/ijo.2019.4770