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Liu YH, Shen MM, Wu YC, Luo KZ, Zhang JK, Wang Z, Chen ZY, Li J, Wu SY, Lin NM, Zhang C, Li YL. Triacanthine enhances the sensitivity of colorectal cancer cells to 5-fluorouracil by regulating RRM2. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 126:155204. [PMID: 38342015 DOI: 10.1016/j.phymed.2023.155204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 02/13/2024]
Abstract
BACKGROUND According to the literatures, triacanthine is isolated from the leaves of Gleditsia triacanthos L. and acts as an anti-hypertensive agent, also cardiotonic, antispasmodic and a respiratory analeptic. The 5-fluorouracil (5-FU) is widely used to treat the patients of colorectal cancer (CRC), but the resistance to 5-FU treatment restricts the therapeutic efficacy of CRC patients. PURPOSE This study aims to explore a novel therapeutics regimen overcoming CRC resistance to 5-FU. METHODS The cell proliferation of CRC cells was determined by SRB and colony formation assay. Transwell and wound-healing assay were applied to explore the potential metastatic abilities of CRC cells. qRT-PCR and Western blot were performed to evaluate the level of indicated mRNAs and proteins respectively. Xenograft assay was used to explore the anti-CRC effect of triacanthine. RESULTS Triacanthine statistically restrained CRC proliferation both in vitro and in vivo. Triacanthine induced cell cycle G1/G0 phase arrest in CRC cells. Meanwhile, triacanthine also inhibited the migrative and invasive abilities of CRC cells. A Venn diagram was generated showing that O-6-Methylguanine-DNA Methyltransferase (MGMT) might be a molecular target of triacanthine in treating CRC. Furthermore, triacanthine plus 5-FU significantly suppressed the cell proliferation of CRC cells compared with single agent treatment alone, and highly synergistic anti-cancer effects were scored when 5-FU was combined with triacanthine in CRC cells. In addition, triacanthine sensitized the anti-cancer activity of 5-FU via regulating Ribonucleotide Reductase Regulatory Subunit M2 (RRM2). MGMT or RRM2 might be novel biomarkers for evaluating the therapeutical efficiency of 5-FU in CRC patients. CONCLUSION We firstly demonstrated triacanthine suppressed cell proliferation and metastasis abilities and found the novel molecular targets of triacanthine in CRC cells. This is the first study to evaluate the anti-cancer efficiency of triacanthine plus 5-FU. Our study has revealed triacanthine as a pertinent sensitizer to 5-FU, and provided novel strategies for predicting outcomes and reversing resistance of 5-FU therapy.
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Affiliation(s)
- Ye-Han Liu
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Min-Min Shen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China; Department of Drug Clinical Trial Institution, Huzhou Central Hospital, Huzhou, Zhejiang 313000, China
| | - Yu-Chen Wu
- Department of Clinical Medicine, The First School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Kai-Zhi Luo
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China; College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | - Jian-Kang Zhang
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China
| | - Zheng Wang
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China; College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zi-Yi Chen
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China
| | - Jie Li
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China
| | - Si-Yao Wu
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China
| | - Neng-Ming Lin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, China; Department of Clinical Pharmacy, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou First People's Hospital, Hangzhou, Zhejiang 310006, China
| | - Chong Zhang
- School of Medicine, Hangzhou City University, No.51 Huzhou Street, Hangzhou, Zhejiang 310015, China.
| | - Yang-Ling Li
- Department of Clinical Pharmacy, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou First People's Hospital, Hangzhou, Zhejiang 310006, China.
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