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Li Z, He H, Ni M, Wang Z, Guo C, Niu Y, Xing S, Song M, Wang Y, Jiang Y, Yu L, Li M, Xu H. Microbiome-Metabolome Analysis of the Immune Microenvironment of the Cecal Contents, Soft Feces, and Hard Feces of Hyplus Rabbits. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5725442. [PMID: 36466090 PMCID: PMC9713467 DOI: 10.1155/2022/5725442] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 08/16/2022] [Indexed: 01/14/2024]
Abstract
The intestinal microbiota and its metabolites play vital roles in host growth, development, and immune regulation. This study analyzed the microbial community distribution and the cytokine and short-chain fatty acid (SCFA) content of cecal contents (Con group), soft feces (SF group), and hard feces (HF group) of 60-day-old Hyplus rabbits and verified the effect of soft feces on the cecal immune microenvironment by coprophagy prevention (CP). The results showed that there were significant differences in the levels of phylum and genus composition, cytokines, and SCFAs among the Con group, SF group, and HF group. The correlation analysis of cytokines and SCFAs with differential microbial communities showed that Muribaculaceae, Ruminococcaceae_UCG-014, Ruminococcaceae_NK4A214_group, and Christensenellaceae_R-7_Group are closely related to cytokines and SCFAs. After CP treatment, the contents of propionic acid, butyric acid, IL-4, and IL-10 in cecum decreased significantly, whereas TNF-α and IL-1β increased significantly. Moreover, the inhibition of coprophagy led to the downregulation of the expression levels of tight junction proteins (Claudin-1, Occludin, and ZO-1) related to intestinal inflammation and intestinal barrier function, and the ring-like structure of ZO-1 was disrupted. In conclusion, coprophagy can not only help rabbits obtain more probiotics and SCFAs but also play an essential role in improving the immune microenvironment of cecum.
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Affiliation(s)
- Zhichao Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Hui He
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Mengke Ni
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhouyan Wang
- Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Chaohui Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yufang Niu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Shanshan Xing
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Mingkun Song
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yaling Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Yixuan Jiang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Lei Yu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Ming Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Huifen Xu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
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