1
|
Pu J, Chen D, Tian G, He J, Zheng P, Huang Z, Mao X, Yu J, Luo Y, Luo J, Yan H, Wu A, Yu B. All-trans retinoic acid alleviates transmissible gastroenteritis virus-induced intestinal inflammation and barrier dysfunction in weaned piglets. J Anim Sci Biotechnol 2024; 15:22. [PMID: 38331814 PMCID: PMC10854194 DOI: 10.1186/s40104-023-00978-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 12/17/2023] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Transmissible gastroenteritis virus (TGEV) is one of the main pathogens causing severe diarrhea of piglets. The pathogenesis of TGEV is closely related to intestinal inflammation. All-trans retinoic acid (ATRA) is the main active metabolite of vitamin A, which has immunomodulatory and anti-inflammatory properties. However, it is unclear whether ATRA can alleviate TGEV-induced intestinal inflammation and barrier dysfunction in piglets. This study aimed to investigate the effects of ATRA on growth performance, diarrhea, intestinal inflammation and intestinal barrier integrity of TGEV-challenged piglets. METHODS In a 19-d study, 32 weaned piglets were randomly divided into 4 treatments: Control group (basal diet), TGEV group (basal diet + TGEV challenge), TGEV + ATRA5 group (basal diet + 5 mg/d ATRA + TGEV challenge) and TGEV + ATRA15 group (basal diet + 15 mg/d ATRA + TGEV challenge). On d 14, piglets were orally administered TGEV or the sterile medium. RESULTS Feeding piglets with 5 and 15 mg/d ATRA alleviated the growth inhibition and diarrhea induced by TGEV (P < 0.05). Feeding piglets with 5 and 15 mg/d ATRA also inhibited the increase of serum diamine oxidase (DAO) activity and the decrease of occludin and claudin-1 protein levels in jejunal mucosa induced by TGEV, and maintained intestinal barrier integrity (P < 0.05). Meanwhile, 5 mg/d ATRA feeding increased the sucrase activity and the expressions of nutrient transporter related genes (GLUT2 and SLC7A1) in jejunal mucosa of TGEV-challenged piglets (P < 0.05). Furthermore, 5 mg/d ATRA feeding attenuated TGEV-induced intestinal inflammatory response by inhibiting the release of interleukin (IL)-1β, IL-8 and tumor necrosis factor-α (TNF-α), and promoting the secretion of IL-10 and secretory immunoglobulin A (sIgA) (P < 0.05). Feeding 5 mg/d ATRA also down-regulated the expressions of Toll-like receptors and RIG-I like receptors signaling pathway related genes (TLR3, TLR4, RIG-I, MyD88, TRIF and MAVS) and the phosphorylation level of nuclear factor-κB-p65 (NF-κB p65), and up-regulated the inhibitor kappa B alpha (IκBα) protein level in jejunal mucosa of TGEV-challenged piglets (P < 0.05). CONCLUSIONS ATRA alleviated TGEV-induced intestinal barrier damage by inhibiting inflammatory response, thus improving the growth performance and inhibiting diarrhea of piglets. The mechanism was associated with the inhibition of NF-κB signaling pathway mediated by TLR3, TLR4 and RIG-I.
Collapse
Affiliation(s)
- Junning Pu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Gang Tian
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, 611130, Sichuan, People's Republic of China.
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, 611130, Chengdu, Sichuan, People's Republic of China.
| |
Collapse
|
2
|
Jin Z, Shen M, Wang L, Wang C, Gao M, Yu G, Chang Z, Zhang X. Antibacterial and immunoregulatory activity of an antimicrobial peptide hepcidin in loach (Misgurnus anguillicaudatus). Int J Biol Macromol 2023; 242:124833. [PMID: 37207751 DOI: 10.1016/j.ijbiomac.2023.124833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/21/2023]
Abstract
Antimicrobial peptides (AMPs) are members of humoral immunity and particpate in resisting microbial invasion. In this study, an AMP gene hepcidin was obtained from the oriental loach Misgurnus anguillicaudatus and named Ma-Hep. This Ma-Hep encodes a peptide of 90 amino acids, with a predicted active peptide segment (Ma-sHep) of 25 amino acids at C terminus. Stimulation by a bacterial pathogen Aeromonas hydrophila resulted in significant up-regulation of Ma-Hep transcripts in loach midgut, head kidney, and gill. Ma-Hep and Ma-sHep proteins were expressed in Pichia pastoris and their antibacterial activity was examined. Results showed that Ma-sHep possessed stronger antibacterial activity against various Gram-positive and Gram-negative bacteria, compared to Ma-Hep. Scanning electron microscopy showed that Ma-sHep might kill bacteria by destroying bacterial cell membranes. Moreover, we found that Ma-sHep had an inhibitory effect on blood cell apoptosis induced by A. hydrophila and facilitated the bacterial phagocytosis and clearance in loach. Histopathological analysis indicated Ma-sHep could protect liver and gut of loach from bacterial infection. Ma-sHep has high thermal stability and PH stability, which is conducive to further feed addition. Feed supplemented with Ma-sHep expressing yeast improved the intestinal flora of loach by increasing the dominant bacteria and decreasing the harmful bacteria. Feed supplemented with Ma-sHep expressing yeast also regulated the expression of inflammatory related factors in various tissues of loach and reduced the mortality of loach upon bacterial infection. These findings show that the antibacterial peptide Ma-sHep is involved in the antibacterial defense of loach and can be used as a candidate for new antimicrobial agents in aquaculture.
Collapse
Affiliation(s)
- Zeyu Jin
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Manli Shen
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Liuen Wang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Cui Wang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Miaomiao Gao
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Guoying Yu
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhongjie Chang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan 453007, China.
| | - Xiaowen Zhang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan center for outstanding overseas scientists of pulmonary fibrosis, College of Life Science, Institute of Biomedical Science, Henan Normal University, Xinxiang, Henan 453007, China; Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology, Henan Normal University, Xinxiang 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang 453007, Henan, China.
| |
Collapse
|
3
|
Wang K, Chen D, Yu B, He J, Mao X, Huang Z, Yan H, Wu A, Luo Y, Zheng P, Yu J, Luo J. Eugenol alleviates transmissible gastroenteritis virus-induced intestinal epithelial injury by regulating NF-κB signaling pathway. Front Immunol 2022; 13:921613. [PMID: 36052062 PMCID: PMC9427193 DOI: 10.3389/fimmu.2022.921613] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/29/2022] [Indexed: 01/13/2023] Open
Abstract
Increasing evidence supports the ability of eugenol to maintain intestinal barrier integrity and anti-inflammatory in vitro and in vivo; however, whether eugenol alleviates virus-mediated intestinal barrier damage and inflammation remains a mystery. Transmissible gastroenteritis virus (TGEV), a coronavirus, is one of the main causative agents of diarrhea in piglets and significantly impacts the global swine industry. Here, we found that eugenol could alleviate TGEV-induced intestinal functional impairment and inflammatory responses in piglets. Our results indicated that eugenol improved feed efficiency in TGEV-infected piglets. Eugenol not only increased serum immunoglobulin concentration (IgG) but also significantly decreased serum inflammatory cytokine concentration (TNF-α) in TGEV-infected piglets. In addition, eugenol also significantly decreased the expression of NF-κB mRNA and the phosphorylation level of NF-κB P65 protein in the jejunum mucosa of TGEV-infected piglets. Eugenol increased villus height and the ratio of villus height to crypt depth in the jejunum and ileum, and decreased serum D-lactic acid levels. Importantly, eugenol increased tight junction protein (ZO-1) and mRNA expression levels of nutrient transporter-related genes (GluT-2 and CaT-1) in the jejunum mucosa of TGEV-infected piglets. Meanwhile, compared with TGEV-infected IPEC-J2 cells, treatment with eugenol reduced the cell cytopathic effect, attenuated the inflammatory response. Interestingly, eugenol did not increase the expression of ZO-1 and Occludin in IPEC-J2 cells. However, western blot and immunofluorescence results showed that eugenol restored TGEV-induced down-regulation of ZO-1 and Occludin, while BAY11-7082 (The NF-κB specific inhibitor) enhanced the regulatory ability of eugenol. Our findings demonstrated that eugenol attenuated TGEV-induced intestinal injury by increasing the expression of ZO-1 and Occludin, which may be related to the inhibition of NF-κB signaling pathway. Eugenol may offer some therapeutic opportunities for coronavirus-related diseases.
Collapse
Affiliation(s)
- Kang Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Aimin Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
- Key Laboratory of Animal Disease-resistant Nutrition, Sichuan Agricultural University, Chengdu, China
- *Correspondence: Junqiu Luo,
| |
Collapse
|