{"title":"以乳酸杆菌为基础的益生菌鸡尾酒通过改变肠道代谢抑制结肠炎相关的癌症。","authors":"Weiyi Wang, Ying Xu, Yimin Chu, Haiqin Zhang, Lu Zhou, Haijin Zhu, Ji Li, Zixu Zhang, Jinnian Cheng, Fengli Zhou, Daming Yang, Weisong Xu, Haixia Peng","doi":"10.62347/USLL6631","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>Dysbiosis of intestinal microbiome is an important colorectal cancer (CRC) pathogenetic mechanism. Lactobacillus-based probiotic cocktail could inhibit colitis-associated cancer (CAC) by alleviating intestinal dysbiosis. The intestinal microbial metabolites have been linked with CRC etiology. However, the link between Lactobacillus-based probiotic cocktail and the alteration of intestinal metabolism and their functional mechanisms during CAC process is still poorly understood.</p><p><strong>Methods: </strong>For assessing protective effects of the probiotic cocktail, azomethanes/dextran sodium sulfate (AOM/DSS) induced CAC mice were pretreated with the probiotic cocktail. Colon of C57BL/6 mice were used to assess inflammation and tumorigenesis. Comparative analysis was performed for determining how the probiotic altered intestinal metabolism and gene expression. Meanwhile, intestinal microbiota alterations were analyzed. The concluding integrated analysis of intestinal metabolism and gene expression as well as intestinal microbiota was presented.</p><p><strong>Results: </strong>Pretreatment with the probiotic alleviated intestinal inflammation and limited the formation of tumors. Oncogenes were down-regulated and cancer suppressor genes were up-regulated after probiotic pretreatment. Pretreatment with the probiotic induced a rise of Lactobacillus-dominated genera and a reduction of potential pathogenic bacteria Parasutterella, Helicobacter and Muribaculum, and affected expression of intestinal metabolites that involved 37 metabolic pathways. Lactobacillus-associated intestinal metabolite variations involve five metabolic pathways - arginine and proline metabolism, histidine metabolism, pyrimidine metabolism, purine metabolism, and tyrosine metabolism.</p><p><strong>Conclusions: </strong>Pretreatment with Lactobacillus-based probiotic cocktail protected mice from CAC by interfering with intestinal metabolites that affected the cancer suppressor genes and oncogenes' expression. Furthermore, Lactobacillus affected five metabolite pathways, which was important mechanism for probiotic anti-inflammatory and anti-tumorigenesis.</p>","PeriodicalId":13943,"journal":{"name":"International journal of clinical and experimental pathology","volume":"18 7","pages":"317-334"},"PeriodicalIF":0.9000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12343454/pdf/","citationCount":"0","resultStr":"{\"title\":\"Lactobacillus-based probiotic cocktail inhibits colitis-associated cancer by altering intestinal metabolism.\",\"authors\":\"Weiyi Wang, Ying Xu, Yimin Chu, Haiqin Zhang, Lu Zhou, Haijin Zhu, Ji Li, Zixu Zhang, Jinnian Cheng, Fengli Zhou, Daming Yang, Weisong Xu, Haixia Peng\",\"doi\":\"10.62347/USLL6631\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>Dysbiosis of intestinal microbiome is an important colorectal cancer (CRC) pathogenetic mechanism. Lactobacillus-based probiotic cocktail could inhibit colitis-associated cancer (CAC) by alleviating intestinal dysbiosis. The intestinal microbial metabolites have been linked with CRC etiology. However, the link between Lactobacillus-based probiotic cocktail and the alteration of intestinal metabolism and their functional mechanisms during CAC process is still poorly understood.</p><p><strong>Methods: </strong>For assessing protective effects of the probiotic cocktail, azomethanes/dextran sodium sulfate (AOM/DSS) induced CAC mice were pretreated with the probiotic cocktail. Colon of C57BL/6 mice were used to assess inflammation and tumorigenesis. Comparative analysis was performed for determining how the probiotic altered intestinal metabolism and gene expression. Meanwhile, intestinal microbiota alterations were analyzed. The concluding integrated analysis of intestinal metabolism and gene expression as well as intestinal microbiota was presented.</p><p><strong>Results: </strong>Pretreatment with the probiotic alleviated intestinal inflammation and limited the formation of tumors. Oncogenes were down-regulated and cancer suppressor genes were up-regulated after probiotic pretreatment. Pretreatment with the probiotic induced a rise of Lactobacillus-dominated genera and a reduction of potential pathogenic bacteria Parasutterella, Helicobacter and Muribaculum, and affected expression of intestinal metabolites that involved 37 metabolic pathways. Lactobacillus-associated intestinal metabolite variations involve five metabolic pathways - arginine and proline metabolism, histidine metabolism, pyrimidine metabolism, purine metabolism, and tyrosine metabolism.</p><p><strong>Conclusions: </strong>Pretreatment with Lactobacillus-based probiotic cocktail protected mice from CAC by interfering with intestinal metabolites that affected the cancer suppressor genes and oncogenes' expression. Furthermore, Lactobacillus affected five metabolite pathways, which was important mechanism for probiotic anti-inflammatory and anti-tumorigenesis.</p>\",\"PeriodicalId\":13943,\"journal\":{\"name\":\"International journal of clinical and experimental pathology\",\"volume\":\"18 7\",\"pages\":\"317-334\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2025-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12343454/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International journal of clinical and experimental pathology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.62347/USLL6631\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/1/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q4\",\"JCRName\":\"ONCOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International journal of clinical and experimental pathology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.62347/USLL6631","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"ONCOLOGY","Score":null,"Total":0}
Lactobacillus-based probiotic cocktail inhibits colitis-associated cancer by altering intestinal metabolism.
Objective: Dysbiosis of intestinal microbiome is an important colorectal cancer (CRC) pathogenetic mechanism. Lactobacillus-based probiotic cocktail could inhibit colitis-associated cancer (CAC) by alleviating intestinal dysbiosis. The intestinal microbial metabolites have been linked with CRC etiology. However, the link between Lactobacillus-based probiotic cocktail and the alteration of intestinal metabolism and their functional mechanisms during CAC process is still poorly understood.
Methods: For assessing protective effects of the probiotic cocktail, azomethanes/dextran sodium sulfate (AOM/DSS) induced CAC mice were pretreated with the probiotic cocktail. Colon of C57BL/6 mice were used to assess inflammation and tumorigenesis. Comparative analysis was performed for determining how the probiotic altered intestinal metabolism and gene expression. Meanwhile, intestinal microbiota alterations were analyzed. The concluding integrated analysis of intestinal metabolism and gene expression as well as intestinal microbiota was presented.
Results: Pretreatment with the probiotic alleviated intestinal inflammation and limited the formation of tumors. Oncogenes were down-regulated and cancer suppressor genes were up-regulated after probiotic pretreatment. Pretreatment with the probiotic induced a rise of Lactobacillus-dominated genera and a reduction of potential pathogenic bacteria Parasutterella, Helicobacter and Muribaculum, and affected expression of intestinal metabolites that involved 37 metabolic pathways. Lactobacillus-associated intestinal metabolite variations involve five metabolic pathways - arginine and proline metabolism, histidine metabolism, pyrimidine metabolism, purine metabolism, and tyrosine metabolism.
Conclusions: Pretreatment with Lactobacillus-based probiotic cocktail protected mice from CAC by interfering with intestinal metabolites that affected the cancer suppressor genes and oncogenes' expression. Furthermore, Lactobacillus affected five metabolite pathways, which was important mechanism for probiotic anti-inflammatory and anti-tumorigenesis.
期刊介绍:
The International Journal of Clinical and Experimental Pathology (IJCEP, ISSN 1936-2625) is a peer reviewed, open access online journal. It was founded in 2008 by an international group of academic pathologists and scientists who are devoted to the scientific exploration of human disease and the rapid dissemination of original data. Unlike most other open access online journals, IJCEP will keep all the traditional features of paper print that we are all familiar with, such as continuous volume and issue numbers, as well as continuous page numbers to keep our warm feelings towards an academic journal. Unlike most other open access online journals, IJCEP will keep all the traditional features of paper print that we are all familiar with, such as continuous volume and issue numbers, as well as continuous page numbers to keep our warm feelings towards an academic journal.