Antitumor effects of curcumin in pediatric rhabdomyosarcoma in combination with chemotherapy and phototherapy in vitro

  • Authors:
    • Christine Sorg
    • Evi Schmid
    • Nicolá Bortel
    • Jörg Fuchs
    • Verena Ellerkamp
  • View Affiliations

  • Published online on: December 10, 2020     https://doi.org/10.3892/ijo.2020.5155
  • Pages: 266-274
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Abstract

Rhabdomyosarcoma (RMS), the most common pediatric soft tissue sarcoma, has an unfavorable outcome in advanced tumor stages with less than 30% failure‑free survival. Curcumin (CUR) is a promising drug in complementary oncology with few side effects but proven efficacy in various adult oncological entities. The present study analyzed the effects of CUR on pediatric (RMS) cell lines in vitro. RMS cell lines (RD and RH30), and skeletal muscle cells (SKMC) were treated with different doses of CUR (1.5‑30 µM) alone, with phototherapy (PDT, 488 nm) or in combination with vincristine (VCR) or dactinomycin (DAC). MTT assays were used for analysis of RMS tumor cell viability. Clonal cell growth was assessed via colony forming assays and migration of the cells was analyzed with scratch tests. Annexin V staining was used to determine apoptosis in flow cytometry. Possible RMS resistance towards CUR after long‑term treatment was analyzed with MTT assays. CUR decreased cell viability in all assessed RMS cell lines in a concentration‑dependent manner with IC50=14‑20 µM. CUR enhanced the effects of the cytotoxic drugs VCR or DAC, and led to reduced migration and increased cell apoptosis. In combination with PDT, CUR decreased the cell viability in minute quantities with up to a 10‑fold lower IC50 than without PDT. CUR effectively inhibited the malignant properties of pediatric RMS cells and should be focused on as a useful additional agent in standard chemotherapy of RMS in children.

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February-2021
Volume 58 Issue 2

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Spandidos Publications style
Sorg C, Schmid E, Bortel N, Fuchs J and Ellerkamp V: Antitumor effects of curcumin in pediatric rhabdomyosarcoma in combination with chemotherapy and phototherapy in vitro. Int J Oncol 58: 266-274, 2021
APA
Sorg, C., Schmid, E., Bortel, N., Fuchs, J., & Ellerkamp, V. (2021). Antitumor effects of curcumin in pediatric rhabdomyosarcoma in combination with chemotherapy and phototherapy in vitro. International Journal of Oncology, 58, 266-274. https://doi.org/10.3892/ijo.2020.5155
MLA
Sorg, C., Schmid, E., Bortel, N., Fuchs, J., Ellerkamp, V."Antitumor effects of curcumin in pediatric rhabdomyosarcoma in combination with chemotherapy and phototherapy in vitro". International Journal of Oncology 58.2 (2021): 266-274.
Chicago
Sorg, C., Schmid, E., Bortel, N., Fuchs, J., Ellerkamp, V."Antitumor effects of curcumin in pediatric rhabdomyosarcoma in combination with chemotherapy and phototherapy in vitro". International Journal of Oncology 58, no. 2 (2021): 266-274. https://doi.org/10.3892/ijo.2020.5155