Collagen gel droplet-embedded culture drug sensitivity testing in squamous cell carcinoma cell lines derived from human oral cancers: Optimal contact concentrations of cisplatin and fluorouracil

  • Authors:
    • Kaname Sakuma
    • Akira Tanaka
    • Izumi Mataga
  • View Affiliations

  • Published online on: October 11, 2016     https://doi.org/10.3892/ol.2016.5238
  • Pages: 4643-4650
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Abstract

The collagen gel droplet-embedded culture drug sensitivity test (CD‑DST) is an anticancer drug sensitivity test that uses a method of three-dimensional culture of extremely small samples, and it is suited to primary cultures of human cancer cells. It is a useful method for oral squamous cell carcinoma (OSCC), in which the cancer tissues available for testing are limited. However, since the optimal contact concentrations of anticancer drugs have yet to be established in OSCC, CD‑DST for detecting drug sensitivities of OSCC is currently performed by applying the optimal contact concentrations for stomach cancer. In the present study, squamous carcinoma cell lines from human oral cancer were used to investigate the optimal contact concentrations of cisplatin (CDDP) and fluorouracil (5‑FU) during CD‑DST for OSCC. CD‑DST was performed in 7 squamous cell carcinoma cell lines derived from human oral cancers (Ca9‑22, HSC‑3, HSC‑4, HO‑1‑N‑1, KON, OSC‑19 and SAS) using CDDP (0.15, 0.3, 1.25, 2.5, 5.0 and 10.0 µg/ml) and 5‑FU (0.4, 0.9, 1.8, 3.8, 7.5, 15.0 and 30.0 µg/ml), and the optimal contact concentrations were calculated from the clinical response rate of OSCC to single‑drug treatment and the in vitro efficacy rate curve. The optimal concentrations were 0.5 µg/ml for CDDP and 0.7 µg/ml for 5‑FU. The antitumor efficacy of CDDP at this optimal contact concentration in CD‑DST was compared to the antitumor efficacy in the nude mouse method. The T/C values, which were calculated as the ratio of the colony volume of the treatment group and the colony volume of the control group, at the optimal contact concentration of CDDP and of the nude mouse method were almost in agreement (P<0.05) and predicted clinical efficacy, indicating that the calculated optimal contact concentration is valid. Therefore, chemotherapy for OSCC based on anticancer drug sensitivity tests offers patients a greater freedom of choice and is likely to assume a greater importance in the selection of treatment from the perspectives of function preservation and quality of life, as well as representing a treatment option for unresectable, intractable or recurrent cases.
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December-2016
Volume 12 Issue 6

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Sakuma K, Tanaka A and Mataga I: Collagen gel droplet-embedded culture drug sensitivity testing in squamous cell carcinoma cell lines derived from human oral cancers: Optimal contact concentrations of cisplatin and fluorouracil. Oncol Lett 12: 4643-4650, 2016
APA
Sakuma, K., Tanaka, A., & Mataga, I. (2016). Collagen gel droplet-embedded culture drug sensitivity testing in squamous cell carcinoma cell lines derived from human oral cancers: Optimal contact concentrations of cisplatin and fluorouracil. Oncology Letters, 12, 4643-4650. https://doi.org/10.3892/ol.2016.5238
MLA
Sakuma, K., Tanaka, A., Mataga, I."Collagen gel droplet-embedded culture drug sensitivity testing in squamous cell carcinoma cell lines derived from human oral cancers: Optimal contact concentrations of cisplatin and fluorouracil". Oncology Letters 12.6 (2016): 4643-4650.
Chicago
Sakuma, K., Tanaka, A., Mataga, I."Collagen gel droplet-embedded culture drug sensitivity testing in squamous cell carcinoma cell lines derived from human oral cancers: Optimal contact concentrations of cisplatin and fluorouracil". Oncology Letters 12, no. 6 (2016): 4643-4650. https://doi.org/10.3892/ol.2016.5238