Rumen microbiota-host transcriptome interaction mediates the protective effects of trans-10, cis-12 CLA on facilitating weaning transition of lambs
文献类型: 外文期刊
作者: Yang, Chunlei 1 ; Deng, Xiangfei 1 ; Lund, Peter 2 ; Liu, Haixia 3 ; Ding, Xingwang 3 ; Fu, Zhengwei 1 ; Zhang, Naifeng 4 ; Li, Jinjun 5 ; Dong, Lifeng 4 ;
作者机构: 1.Zhejiang Univ Technol, Coll Biotechnol & Bioengn, Hangzhou 310014, Peoples R China
2.Aarhus Univ, Dept Anim Sci, AU Foulum, DK-8830 Tjele, Denmark
3.Jiangsu Agrianim Husb Vocat Coll, Taizhou 225300, Peoples R China
4.Chinese Acad Agr Sci, Inst Feed Res, Sino US Joint Lab Nutr & Metab Ruminant, Beijing 100081, Peoples R China
5.Zhejiang Acad Agr Sci, Inst Food Sci, Hangzhou 310021, Peoples R China
关键词: Trans-10; cis-12 conjugated linoleic acid; Rumen microbiota; Epithelial transcriptome; Peroxisome proliferator-activated receptor; gamma; Weaning stress
期刊名称:ANIMAL NUTRITION ( 影响因子:6.3; 五年影响因子:6.9 )
ISSN: 2405-6383
年卷期: 2023 年 12 卷
页码:
收录情况: SCI
摘要: Developing alternatives to antibiotics for prevention of gastrointestinal dysbiosis in early-weaning farmed animals is urgently needed. This study was to explore the potential effects of trans-10, cis-12 conjugated linoleic acid (CLA) on maintaining ruminal homeostasis of young ruminants during the weaning transition period. Thirty neonatal lambs were selected (6 lambs per group) and euthanized for rumen microbial and epithelial analysis. The lambs were weaned at 28 d and experienced the following 5 treatments: euthanized on d 28 as the pre-weaning control (CON0), fed starter feed for 5 (CON5) or 21 (CON21) d, fed starter feed with 1% of CLA supplemented for 5 (CLA5) or 21 (CLA21) d. Results showed that the average daily weight gain and dry matter intake were significantly higher in CLA5 than CON5 group. As compared with the CON5 and CON21 group, the relative abundances of volatile fatty acid (VFA) producing bacteria including Bacteroides, Treponema, Parabacteroides and Anaerovibrio, as well as the concentrations of acetate, butyrate and total VFA were significantly increased in CLA5 and CLA21 group, respectively. Integrating microbial profiling and epithelial transcriptome results showed that 7 down -regulated inflammatory signaling-related host genes IL2RA, CXCL9, CD4, CCR4, LTB, SPP1, and BCL2A1 with CLA supplementation were significantly negatively correlated with both VFA concentration and VFA producing bacteria, while 3 (GPX2, SLC27A2 and ALDH3A1) and 2 (GSTM3 and GSTA1) upregulated metabolism-related genes, significantly positively correlated with either VFA concentration or VFA producing bacteria, respectively. To confirm the effects of CLA on epithelial signal transduction, in vitro experiment was further conducted by treating rumen epithelial cells without or with IL-17A thorn TNF-a for 12 h after pretreatment of 100 mM CLA or not (6 replicates per treatment). The results demonstrated the anti-inflammatory effect of CLA via suppressing the protein expression of NF-KB p-p65/p65 with the activation of peroxisome proliferator-activated receptor gamma (PPARg). In conclusion, CLA supple-mentation enhanced the ruminal microbiota-driven transcriptional regulation in healthy rumen epithelial development via rumen VFA production, and CLA may therefore serve as an alternative way to alleviate early-weaning stress and improve physiological and metabolic conditions of young ruminants.(c) 2023 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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