Document Type : Research Paper
Authors
1
Ph. D. in Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
2
Professor of Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
3
Associate Professor of Biochemistry, Cellular Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran & Associate Professor of Biochemistry, Microbiology and Molecular Genetics Department, Michigan State
4
Professor of Biochemistry, Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5
Ph. D. Student in Exercise Physiology, Faculty of Sport Sciences, University of Birjand, Birjand, Iran
Abstract
Studies show that exercise training and bioactive component of saffron can reduce apoptosis and cachexia caused by cancer. The present study aimed to investigate the effects of four weeks of high-intensity interval training (HIIT) and consumption of saffron aqueous extract (SAE) on the expression of some cachexia-related genes (SIRT1, hTERT, and p53) in the gastrocnemius muscle of mice carrying 4T1 breast cancer cell line. For this purpose, 44 female BALB/c mice were randomly divided into HIIT, SAE, HIIT + SAE, control and sham groups. Following 48h of the last intervention session, mice were euthanized, and the gastrocnemius muscle removed for further analyses. The results showed that the expression of the SIRT-1 gene in the HIIT group was significantly higher than the control and SAE + HIIT groups (P=0.03 and P=0.02, respectively). Also, the gene expression of hTERT in the HIIT group was significantly higher than the other groups (p < 0.05) and in the SAE group was significantly higher than the SAE + HIIT group (P=0.01). Furthermore, the gene expression of p53 in the HIIT and SAE + HIIT groups was lower than the SAE group (P=0.003 and P=0.004, respectively). Based on the results, it seems that HIIT has a positive role in reducing cancer-induced cachexia by regulating higher expression of SIRT1 and hTERT and lower expression of p53 and may be effective in reducing cancer-induced muscle wasting.
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