Combined Effect of Iodine Contrast Media, Cisplatin and External Beam Radiotherapy on Anaplastic Thyroid Cancer Cells

S Nadi; A Shabestani Monfared; E Zabihi; A Mahmoudzadeh; N Eyvazzadeh; R Tahamtan

Combined Effect of Iodine Contrast Media, Cisplatin and External Beam Radiotherapy on Anaplastic Thyroid Cancer Cells

J Biomed Phys Eng. 2019 Apr 1;9(2):217-226. eCollection 2019 Apr.

Authors

S Nadi¹, A Shabestani Monfared², E Zabihi³, A Mahmoudzadeh⁴, N Eyvazzadeh⁵, R Tahamtan⁶

Affiliations

¹ MSc Student of Radiobiology and Radiation Protection, Cellular and Molecular Biology Research Centre, Babol University of Medical Sciences, Babol, Iran.
² Professor of Medical Physics, Cellular and Molecular Biology Research Centre, Babol University of Medical Sciences, Babol, Iran.
³ PharmD, Phd, Cellular and Molecular Biology Research Centre, Babol University of Medical Sciences, Babol, Iran.
⁴ Phd Immunology, Department of Bioscience and Biotechnology Malek-Ashtar University of Technology. Tehran, Iran.
⁵ Phd of medical physic, Radiation Research Center, Faculty of Paramedicine, Aja University of Medical Sciences, Tehran, Iran.
⁶ MSc of Radiobiology and Radiation Protection, Babol University of Medical Sciences, Babol, Iran.

PMID: 31214527
PMCID: PMC6538913

Abstract

Introduction: The current study investigated the combination of high Z atoms (iodine-, platinium-based drugs) with using low energy irradiation (120kvp) in Anaplastic Thyroid cancer cells.

Material and methods: For this purpose, eight groups were designed: control (CNT), different concentrations of Iodine contrast media (ICM), irradiation with various doses, Cis-platin (CDDP) with different concentrations, (ICM + CDDP), (ICM + RAD), (CDDP + RAD) and (ICM + CDDP + RAD). The viability was measured by MTT and Colony assay. In MTT assay, the viability of 8305c cells RAD (2 Gy)+ICM (10mg/mL) group was significantly lower than those treated with RAD or ICM alone. CDDP +ICM+RAD group significantly decreased the viability. In colony assay, cells in ICM + RAD (2 Gy) group reduced the number of colonies more significant than RAD group. The difference of colony forming ability between CDDP and CDDP + RAD (2 Gy) was significant. The difference of ICM + CDDP + RAD (2 Gy) and CDDP +RAD (2 Gy) group was significant. All data were statistically analysed using one-way analysis of variance (ANOVA) followed by Chafe's multi-comparisons tests. All data were presented as mean ± standard deviation (SD) and analysed using statistical package for social sciences (SPSS 16). Significance was considered to be p<0.05.

Results: In MTT assay, the viability of 8305c cells RAD (2 Gy) + ICM (10mg/mL) group was significantly lower than those treated with RAD or ICM alone. CDDP + ICM + RAD group significantly decreased the viability. In colony assay, cells in ICM + RAD (2 Gy) group reduced the number of colonies more significantly than RAD group. The difference of colony forming ability between CDDP and CDDP + RAD (2 Gy) was significant. The difference of ICM + CDDP + RAD (2 Gy) and CDDP + RAD (2 Gy) group was significant.

Conclusion: Exposure of ATC to ICM in the presence of CDDP increases tissue X-rays absorbance by Auger electrons and photo electrons leading to more fatal effects against the tumour.

Keywords: Cisplatin; Iodine Contrast Media; Photoelectric; Radiotherapy; Anaplastic Thyroid Carcinoma.