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Bai J, Wang S, Xu F, Dong M, Wang J, Sun X, Xiao G. L. reuteri JMR-01 adjuvant 12C 6+ irradiation exerts anti-colon carcinoma effects by modulating the gut microbiota in mice. Int J Radiat Biol 2023; 99:779-790. [PMID: 36731457 DOI: 10.1080/09553002.2023.2142979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Probiotics such as Lactobacillus could modulate the intestinal microbiota and have been considered as an effective strategy for ameliorating colon carcinoma. Nevertheless, its efficiency remains the biggest challenge. METHODS We investigated the therapeutic efficacy of Lactobacillus reuteri JMR-01 adjuvant 12C6+ irradiation on CT-26 syngeneic mouse models. Meanwhile, intestinal flora and innate immunity were examined to outline mechanisms. RESULTS Anti-proliferation effect of live probiotic combined with inactivated probiotic JMR-01 (LP + IP) on CT-26 reached a maximum of 39.55% among other experiment groups at 24 h when the ratio of cell to CFU was 1:1 in vitro. These activities have been fully validated in vivo, tumor-bearing mice treated by 12C6+ irradiation combining with living and inactivated probiotics JMR-01 (IR + LP + IP) for 50-day held the highest survival rate (71.4%) and complete remission rate (14.3%). We also demonstrated significant fluctuation in gut microbiota, including the decreased abundance of Bacteroides fragilis and Clostridium perfringens related to tumorigenesis and development, and the increased abundance of Lactobacillus and Bifidobacterium closely associated with health restoration in fecal of mice treated with JMR-01 LP + IP adjuvant 12C6+ irradiation (IR + LP + IP). Similarly, the decreasing nitroreductase activities and increasing short chain fatty acids (SCFAs) concentrations were observed in IR + LP + IP group compared with tumor control group, which further confirmed the changes of gut microbiota. Additionally, we found that the strongest stimulation index of splenocyte (2.47) and the phagocytosis index peritoneal macrophage (3.68) were achieved by LP + IP compared with single live JMR-01 (LP) and inactivated JMR-01 (IP). CONCLUSIONS JMR-01 LP + IP adjuvant 12C6+ irradiation could mitigate cancer progression by modulating innate immunity as well as intestinal flora.
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Affiliation(s)
- Jin Bai
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China.,College of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, PR China
| | - Shuyang Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China.,College of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, PR China.,Institute of Biology, Gansu Academy of Sciences, Lanzhou, PR China
| | - Fuqiang Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China.,College of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, PR China
| | - Miaoyin Dong
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China
| | - Junkai Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China
| | - Xisi Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China.,College of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, PR China
| | - Guoqing Xiao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, PR China.,College of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, PR China
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Chen Y, Yang B, Zhao J, Ross RP, Stanton C, Zhang H, Chen W. Exploiting lactic acid bacteria for colorectal cancer: a recent update. Crit Rev Food Sci Nutr 2022; 64:5433-5449. [PMID: 36530047 DOI: 10.1080/10408398.2022.2154742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Colorectal cancer (CRC) is the third most common cancer in the world. Currently, chemotherapy and radiotherapy used to treat CRC exhibit many side effects, hence, it is an urgent need to design effective therapies to prevent and treat CRC. Lactic acid bacteria (LAB) can regulate gut microbiota, intestinal immunity, and intestinal mechanical barrier, which is becoming a hot product for the prevention and treatment of CRC, whereas comprehensive reviews of their anti-CRC mechanisms are limited. This review systematically reveals the latest incidence, mortality, risk factors, and molecular mechanisms of CRC, then summarizes the roles of probiotics in alleviating CRC in animal and clinical studies and critically reviews the possible mechanisms by which these interventions exert their activities. It then shows the limitations in mechanisms and clinical studies, and the suggestions for future research are also put forward, which will play an important role in guiding and promoting the basic and clinical research of remising CRC by LAB and the development of LAB products.
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Affiliation(s)
- Yang Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Bo Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi, China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi, China
| | - R Paul Ross
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi, China
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Catherine Stanton
- International Joint Research Center for Probiotics & Gut Health, Jiangnan University, Wuxi, China
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Cork, Ireland
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, China
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Lactiplantibacillus plantarum inhibits colon cancer cell proliferation as function of its butyrogenic capability. Biomed Pharmacother 2022; 149:112755. [PMID: 35276466 DOI: 10.1016/j.biopha.2022.112755] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 11/21/2022] Open
Abstract
Lactobacilli have been shown to inhibit or suppress cancer cell growth through the release of strain-specific bioactive metabolites and their inclusion in functional foods could exert a health promoting activity on human health. Herein, we examined the antiproliferative activity of the Lactiplantibacillus plantarum strains S2T10D and O2T60C, which have been previously shown to exert different butyrogenic activities. Human HT-29 cells were employed as an in vitro colon cancer model and both bacterial strains were found to inhibit their growth. However, the strain S2T10D showed a greater antiproliferative activity which, interestingly, was correlated to its butyrogenic capability. Noteworthy, for the non-butyrogenic strain O2T60C, the growth inhibitory capability was rather limited. Furthermore, both the butyrate-containing supernatant of S2T10D and glucose-deprived cell culture medium supplemented with the same concentration of butyrate found in S2T10D supernatant, induced a pH-independent cancer cell growth inhibition accompanied by downregulation of cyclin D1 at mRNA level. The downregulation of cyclin D1 gene expression was accompanied by cell cycle arrest in G2/M phase and decrease of cyclin B1 and D1 protein levels. This in vitro study underlines the impact of Lpb. plantarum in the growth inhibition of cancer cells, and proposes butyrate-mediated cell cycle regulation as a potential involved mechanism. Since the production of butyric acid in Lpb. plantarum has been proven strain-dependent and differentially boosted by specific prebiotic compounds, our results open future research paths to determine whether this metabolic activity could be modulated in vivo by enhancing this antiproliferative effects on cancer cells.
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