Abstract
Background
Several studies have shown that the TGF-β signaling pathway plays a critical role in colorectal cancer (CRC) pathogenesis. The aim of the current study is to investigate the therapeutic potential of Vactosertib (EW-7197), a selective inhibitor of TGF-β receptor type I, either alone or in combination with the standard first-line chemotherapeutic treatment, 5-Fluorouracil (5-FU), in CRC progression in both cellular and animal models.
Methods
Real-Time PCR, Zymography, enzyme-linked immunosorbent assay (ELISA), Hematoxylin and Eosin (H&E) tissue staining, and Flow cytometry techniques were applied to determine the anti-tumor properties of this novel TGF-β inhibitor in in vitro (CT-26 cell line) and in vivo (inbred BALB/C mice) samples.
Results
Our findings showed that Vactosertib decreased cell proliferation and induced spheroid shrinkage. Moreover, this inhibitor suppressed the cell cycle and its administration either alone or in combination with 5-FU induced apoptosis by regulating the expression of p53 and BAX proteins. It also improved 5-FU anti-cancer effects by decreasing the tumor volume and weight, increasing tumor necrosis, and regulating tumor fibrosis and inflammation in an animal model. Vactosertib also enhanced the inhibitory effect of 5-FU on invasive behavior of CRC cells by upregulating the expression of E-cadherin and inhibiting MMP-9 enzymatic activity.
Conclusion
This study demonstrating the potent anti-tumor effects of Vactosertib against CRC progression. Our results clearly suggest that this inhibitor could be a promising agent reducing CRC tumor progression when administered either alone or in combination with standard treatment in CRC patients.
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Data availability
All data are available from the corresponding author on reasonable request.
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Funding
This study supported by grants awarded by the Biotechnology Development Council of the Islamic Republic of Iran (Grant No. 970306) and Iran National Science Foundation (Grant No. 97014095).
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M.M.B and F.A. initiated, designed and executed the animal experiments and finally drafted the manuscript. F.R. and A.M.A.A. performed the cellular experiments. The oxidation stress tests were done by M.H., AA, R. H., and S.M. partially contributed in executing the project. E.G and M.R edited and reviewed the manuscript. AA was a consultant of this project and also supervised cellular experiments. MK and S.M.H supervised the whole project including the study and performed experiments. They also provided all the chemicals. “The authors declare that all data were generated in-house and that no paper mill was used”.
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All animal experiments were carried out in accordance with the guidelines of National Institute of Health for the Care and Use of Laboratory Animals (NIH Publication No. 80–23; revised 1978) and were approved by the Ethics Committee of Mashhad University of Medical Sciences. All methods are reported in accordance with ARRIVE guidelines for the reporting of animal experiments.
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Binabaj, M.M., Asgharzadeh, F., Rahmani, F. et al. Vactosertib potently improves anti-tumor properties of 5-FU for colon cancer. DARU J Pharm Sci 31, 193–203 (2023). https://doi.org/10.1007/s40199-023-00474-y
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DOI: https://doi.org/10.1007/s40199-023-00474-y