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:: Volume 15, Issue 1 (1-2017) ::
Int J Radiat Res 2017, 15(1): 15-23 Back to browse issues page
Genotype-phenotype association of TGF-β1 and GST with chemo-radiotherapy induced toxicity
H. V. Goutham, K. D. Mumbrekar, N. Hitendra, B. M. Vadhiraja, D. J. Fernandes, B. S. Satish Rao
Department of Radiation Biology & Toxicology, School of Life Sciences, Manipal University, Manipal, Karnataka, India , satishraomlsc@gmail.com or rao.satish@manipal.edu
Abstract:   (5804 Views)

Background: Normal tissue toxicity continues to remain as a major challenge for radiation oncologists for delivering the total dose to the tumour cells in cancer patients. Cellular, molecular and plasma based early biomarkers to predict the overreactions and non-overreactions of normal tissue toxicity before the initiation of radiotherapy can be valuable for personalised treatment. The aim of the current study was to analyse the interrelationship between polymorphisms in Glutathione S- Transferases (GSTs) and Transforming Growth Factor-β1 (TGF-ß1), the plasma level/activity of these proteins with the development of chemo-radiotherapy induced oral mucositis and skin reaction in head and neck cancer (HNC) patients. Materials and Methods: We analysed polymorphisms in TGF-β1 and GST by restriction digestion of the PCR amplified products and we also assessed circulating TGF-β1 levels and GST activity by Enzyme Linked Immunosorbent Assay (ELISA). Results: The results indicate that pre-radiotherapy plasma TGF-β1 levels and total GST activity has no correlation with radiation induced normal tissue skin reaction and oral mucositis in HNC patients. Conclusion: The selected polymorphisms in TGF-β1 and GST had no influence on TGF-β1 levels and total GST activity. Plasma TGF-β1 and GST activity was not affected by the presence of selected polymorphisms and lacks significance in predicting skin reaction and oral mucositis prior to chemo-radiotherapy.

Keywords: Single nucleotide polymorphism, TGF-β1, glutathione S- Transferase, oral mucositis, skin reaction, chemo-radiotherapy.
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Type of Study: Short Report | Subject: Radiation Biology
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Goutham H V, Mumbrekar K D, Hitendra N, Vadhiraja B M, Fernandes D J, Satish Rao B S. Genotype-phenotype association of TGF-β1 and GST with chemo-radiotherapy induced toxicity . Int J Radiat Res. 2017; 15 (1) :15-23
URL: http://ijrr.com/article-1-1882-en.html

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Volume 15, Issue 1 (1-2017) Back to browse issues page
International Journal of Radiation Research
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