2. Academic Validation
  3. Dietary D-xylose promotes intestinal health by inducing phage production in Escherichia coli

Dietary D-xylose promotes intestinal health by inducing phage production in Escherichia coli

  • NPJ Biofilms Microbiomes. 2023 Oct 11;9(1):79. doi: 10.1038/s41522-023-00445-w.
Jie Hu 1,  Yifan Wu 1,  Luyuan Kang 1,  Yisi Liu 1,  Hao Ye 2,  Ran Wang 3,  Jinbiao Zhao 1,  Guolong Zhang 4,  Xilong Li 5,  Junjun Wang 1,  Dandan Han 6
Affiliations

Affiliations

  • 1 State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.
  • 2 Department of Animal Sciences, Wageningen University & Research, NL-6700, AH, Wageningen, the Netherlands.
  • 3 Key Laboratory for Control Technology and Standard for Agro-product Safety and Quality, Ministry of Agriculture and Rural Affairs, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing, China.
  • 4 Department of Animal and Food Sciences, Oklahoma State University, Stillwater, OK, USA.
  • 5 Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Institute of Feed Research, Chinese Academy of Agricultural Sciences, Beijing, China.
  • 6 State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, China. handandan@cau.edu.cn.
PMID: 37821428 DOI: 10.1038/s41522-023-00445-w
Abstract

Elimination of specific enteropathogenic Microorganisms is critical to gut health. However, the complexity of the gut community makes it challenging to target specific Bacterial organisms. Accumulating evidence suggests that various foods can change the abundance of intestinal bacteria by modulating prophage induction. By using pathogenic Escherichia coli (E. coli) ATCC 25922 as a model in this research, we explored the potential of dietary modulation of prophage induction and subsequent Bacterial survival. Among a panel of sugars tested in vitro, D-xylose was shown to efficiently induce prophages in E. coli ATCC 25922, which depends, in part, upon the production of D-lactic acid. In an enteric mouse model, prophage induction was found to be further enhanced in response to propionic acid. Dietary D-xylose increased the proportion of Clostridia which converted D-lactic acid to propionic acid. Intestinal propionic acid levels were diminished, following either oral gavage with the dehydrogenase gene (ldhA)-deficient E. coli ATCC 25922 or depletion of intestinal Clostridia by administration of streptomycin. D-Xylose metabolism and exposure to propionic acid triggered E. coli ATCC 25922 SOS response that promoted prophage induction. E. coli ATCC 25922 mutant of RecA, a key component of SOS system, exhibited decreased phage production. These findings suggest the potential of using dietary components that can induce prophages as antimicrobial alternatives for disease control and prevention by targeted elimination of harmful gut bacteria.

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