Journal of Traditional Chinese Medicine ›› 2023, Vol. 43 ›› Issue (3): 466-473.DOI: 10.19852/j.cnki.jtcm.20230214.001

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Sanwu Baisan decoction (三物白散) inhibits colorectal cancer progression in mice by remodeling gut microbiota and tumorigenesis

JIANG Yiqian1, ZHOU Xibin1,2, PU Wenyuan1(), ZHOU Chunxiang1()   

  1. 1 Department of Febrile Disease, Basic Medicine College, Nanjing University of Chinese Medicine, Nanjing 210046, China
    2 Department of Traditional Chinese Medicine, Second Military Medical University, Shanghai 200433, China
  • Received:2022-02-18 Accepted:2022-05-25 Online:2023-06-15 Published:2023-02-14
  • Contact: Dr. PU Wenyuan, Department of Traditional Chinese Medicine, Second Military Medical University, Shanghai 200433, China. wenyuanpu@njucm.edu.cn. Telephone: +86-19951948590; +86-15950577300
    Prof. ZHOU Chunxiang, Department of Traditional Chinese Medicine, Second Military Medical University, Shanghai 200433, China. chunxiangzhou@njucm.edu.cn
  • Supported by:
    National Natural Science Foundation-funded Project: the Biological Mechanism of Lingguizhugan Decoction Treating Alzheimer's Disease via Regulating Brain Lymphatic Drainage System(82074504);Priority Academic Program Development of Jiangsu Higher Education Institutions (Integration of Chinese and Western Medicine);Natural Science Foundation of the Jiangsu Higher Education Institutions-funded Project: to Explore the Mechanism of Sanwubai San Regulating Gut Microbiota Against Colorectal Cancer By IL-23/ΓδT17/IL-17 Axis(19KJB360003)

Abstract:

OBJECTIVE: To uncover the anti-tumor effects and potential mechanism of Sanwu Baisan Decoction (三物白散, SWB) in treatment of colorectal cancer (CRC) in mice.

METHODS: Therapeutic effect was evaluated based on body weight gain, tumor volume, tumor growth inhibition rate, and histological changes and apoptosis in the tumor tissues. Anti-tumor immunity was studied by measuring plasma levels of anti-tumor cytokines, interleukin 6 (IL-6), interleukin 17 (IL-17), and interferon γ (IFN-γ). Gut morphological changes were evaluated by histological staining and tight junction proteins expressions. Gut microbiota composition was analyzed by 16S rRNA gene sequencing. Classical toll-like receptor 4 (TLR-4)/ cyclooxygenase 2 (COX-2)/ prostaglandin E2 (PGE-2) pathway was examined in colon tissue and tumor samples.

RESULTS: SWB presented high anti-tumor efficacy of CRC in mice, which manifested as decreased tumor volume and increased tumor growth inhibition rate. This anti-tumor effect of SWB was associated with elevated plasma levels of anti-tumor immune cytokines (IL-6, IL-17, and IFN-γ). Further studies showed that SWB also increases the expression of occluding and promotes the abundance of gut probiotics, Clostridium_XIVa, Enterorhabdus, and uncultured_bacterium. Moreover, results suggested that the anti-tumor effects of SWB might associate with inducing cancer cell apoptosis and inhibiting the TLR-4/COX-2/PGE-2 pathway in both colon tissue and tumor samples.

CONCLUSION: SWB shows strong anti-tumor efficiency in mice with colorectal carcinoma, possibly through promoting the secretion of anti-tumor immune cytokines, inducing cancer apoptosis, maintaining the gut microbiota, and inhibiting tumorigenesis by inhibiting the TLR-4/COX-2/PGE-2 pathway.

Key words: colorectal neoplasms, carcinogenesis, apoptosis, gastrointestinal microbiome, dysbiosis, Sanwu Baisan decoction

Cite this article

JIANG Yiqian, ZHOU Xibin, PU Wenyuan, ZHOU Chunxiang. Sanwu Baisan decoction (三物白散) inhibits colorectal cancer progression in mice by remodeling gut microbiota and tumorigenesis[J]. Journal of Traditional Chinese Medicine, 2023, 43(3): 466-473.