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You C, Xing J, Sun J, Zhang D, Yan Y, Dong Y. Anti-Inflammatory and Anti-Oxidant Impacts of Lentinan Combined with Probiotics in Ulcerative Colitis. Mol Biotechnol 2023:10.1007/s12033-023-00878-w. [PMID: 37819465 DOI: 10.1007/s12033-023-00878-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 08/29/2023] [Indexed: 10/13/2023]
Abstract
Multi-methods have been developed to control ulcerative colitis. This research targeted to probe that lentinan combined with probiotics suppresses inflammation and oxidative stress responses in a dextran sulfate sodium (DSS)-induced colitis model. A mouse model of colitis was induced through oral administration with 2.5% DSS and treated with lentinan and probiotics independently or in combination. Then, bodyweight and Disease Activity Index (DAI) of mice were determined. Histopathology of colon tissue was analyzed, and apoptosis, inflammation and oxidative stress in the colon tissue of mice were observed. An HT-29 cell model of colitis was established by DSS stimulation and cultured with lentinan and/or probiotics to examine cell proliferation and apoptosis. The data discovered that after DSS induction of colitis, mice developed weight loss, increased DAI score, and shortened the length of colon. Also, severe histopathology of the colon, and increased apoptosis, inflammation and oxidative stress were recognizable. Lentinan could alleviate DSS-induced colitis, and the highest dose was the most significant. Probiotics could also relieve UC in mice, and mixed probiotics had a better therapeutic effect than single probiotics. Lentinan combined with probiotics could further alleviate DSS-induced colitis damage. In addition, lentinan combined with probiotics impaired apoptosis and enhanced proliferation of DSS-treated HT-29 cells. In a word, lentinan combined with probiotics reduces the inflammatory response and oxidative stress of UC.
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Affiliation(s)
- CuiYu You
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - JianFeng Xing
- School of Pharmacy, Xi'an Jiaotong University, Xi'an City, 710061, Shaanxi Province, China
| | - JinYao Sun
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - Di Zhang
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - Yan Yan
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China
| | - YaLin Dong
- Department of Pharmacy, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an City, 710061, Shaanxi Province, China.
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Zhou X, Gao M, De X, Sun T, Bai Z, Luo J, Wang F, Ge J. Bacterium-like particles derived from probiotics: progress, challenges and prospects. Front Immunol 2023; 14:1263586. [PMID: 37868963 PMCID: PMC10587609 DOI: 10.3389/fimmu.2023.1263586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
Bacterium-like particles (BLPs) are hollow peptidoglycan particles obtained from food-grade Lactococcus lactis inactivated by hot acid. With the advantage of easy preparation, high safety, great stability, high loading capacity, and high mucosal delivery efficiency, BLPs can load and display proteins on the surface with the help of protein anchor (PA), making BLPs a proper delivery system. Owning to these features, BLPs are widely used in the development of adjuvants, vaccine carriers, virus/antigens purification, and enzyme immobilization. This review has attempted to gather a full understanding of the technical composition, characteristics, applications. The mechanism by which BLPs induces superior adaptive immune responses is also discussed. Besides, this review tracked the latest developments in the field of BLPs, including Lactobacillus-derived BLPs and novel anchors. Finally, the main limitations and proposed breakthrough points to further enhance the immunogenicity of BLPs vaccines were discussed, providing directions for future research. We hope that further developments in the field of antigen delivery of subunit vaccines or others will benefit from BLPs.
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Affiliation(s)
- Xinyao Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Mingchun Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinqi De
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Tong Sun
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Zhikun Bai
- School of Basic Medical Sciences, Youjiang Medical University for Nationalities, Baise, China
| | - Jilong Luo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Fang Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, The Chinese Academy of Agricultural Sciences, Harbin, China
| | - Junwei Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Zoonosis, Harbin, China
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Wang L, Wang C, Peng Y, Zhang Y, Liu Y, Liu Y, Yin Y. Research progress on anti-stress nutrition strategies in swine. Animal Nutrition 2023; 13:342-360. [DOI: 10.1016/j.aninu.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/04/2023] [Accepted: 03/30/2023] [Indexed: 04/09/2023]
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Santos-Marcos JA, Mora-Ortiz M, Tena-Sempere M, Lopez-Miranda J, Camargo A. Interaction between gut microbiota and sex hormones and their relation to sexual dimorphism in metabolic diseases. Biol Sex Differ 2023; 14:4. [PMID: 36750874 DOI: 10.1186/s13293-023-00490-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/30/2023] [Indexed: 02/09/2023] Open
Abstract
Metabolic diseases, such as obesity, metabolic syndrome (MetS) and type 2 diabetes (T2D), are now a widespread pandemic in the developed world. These pathologies show sex differences in their development and prevalence, and sex steroids, mainly estrogen and testosterone, are thought to play a prominent role in this sexual dimorphism. The influence of sex hormones on these pathologies is not only reflected in differences between men and women, but also between women themselves, depending on the hormonal changes associated with the menopause. The observed sex differences in gut microbiota composition have led to multiple studies highlighting the interaction between steroid hormones and the gut microbiota and its influence on metabolic diseases, ultimately pointing to a new therapy for these diseases based on the manipulation of the gut microbiota. This review aims to shed light on the role of sexual hormones in sex differences in the development and prevalence of metabolic diseases, focusing on obesity, MetS and T2D. We focus also the interaction between sex hormones and the gut microbiota, and in particular the role of microbiota in aspects such as gut barrier integrity, inflammatory status, and the gut-brain axis, given the relevance of these factors in the development of metabolic diseases.
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Baillo A, Villena J, Albarracín L, Tomokiyo M, Elean M, Fukuyama K, Quilodrán-Vega S, Fadda S, Kitazawa H. Lactiplantibacillus plantarum Strains Modulate Intestinal Innate Immune Response and Increase Resistance to Enterotoxigenic Escherichia coli Infection. Microorganisms 2022; 11:microorganisms11010063. [PMID: 36677354 PMCID: PMC9863675 DOI: 10.3390/microorganisms11010063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Currently, probiotic bacteria with not transferable antibiotic resistance represent a sustainable strategy for the treatment and prevention of enterotoxigenic Escherichia coli (ETEC) in farm animals. Lactiplantibacillus plantarum is among the most versatile species used in the food industry, either as starter cultures or probiotics. In the present work, the immunobiotic potential of L. plantarum CRL681 and CRL1506 was studied to evaluate their capability to improve the resistance to ETEC infection. In vitro studies using porcine intestinal epithelial (PIE) cells and in vivo experiments in mice were undertaken. Expression analysis indicated that both strains were able to trigger IL-6 and IL-8 expression in PIE cells in steady-state conditions. Furthermore, mice orally treated with these strains had significantly improved levels of IFN-γ and TNF-α in the intestine as well as enhanced activity of peritoneal macrophages. The ability of CRL681 and CRL1506 to beneficially modulate intestinal immunity was further evidenced in ETEC-challenge experiments. In vitro, the CRL1506 and CRL681 strains modulated the expression of inflammatory cytokines (IL-6) and chemokines (IL-8, CCL2, CXCL5 and CXCL9) in ETEC-stimulated PIE cells. In vivo experiments demonstrated the ability of both strains to beneficially regulate the immune response against this pathogen. Moreover, the oral treatment of mice with lactic acid bacteria (LAB) strains significantly reduced ETEC counts in jejunum and ileum and prevented the spread of the pathogen to the spleen and liver. Additionally, LAB treated-mice had improved levels of intestinal IL-10 both at steady state and after the challenge with ETEC. The protective effect against ETEC infection was not observed for the non-immunomodulatory TL2677 strain. Furthermore, the study showed that L. plantarum CRL1506 was more efficient than the CRL681 strain to modulate mucosal immunity highlighting the strain specific character of this probiotic activity. Our results suggest that the improved intestinal epithelial defenses and innate immunity induced by L. plantarum CRL1506 and CRL681 would increase the clearance of ETEC and at the same time, protect the host against detrimental inflammation. These constitute valuable features for future probiotic products able to improve the resistance to ETEC infection.
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Affiliation(s)
- Ayelen Baillo
- Laboratory of Technology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina
| | - Julio Villena
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Correspondence: (J.V.); (S.F.); (H.K.)
| | - Leonardo Albarracín
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina
| | - Mikado Tomokiyo
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Livestock Immunology Unit, International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
| | - Mariano Elean
- Laboratory of Immunobiotechnology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina
| | - Kohtaro Fukuyama
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Livestock Immunology Unit, International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
| | - Sandra Quilodrán-Vega
- Laboratory of Food Microbiology, Faculty of Veterinary Sciences, University of Concepción, Chillán 3820572, Chile
| | - Silvina Fadda
- Laboratory of Technology, Reference Centre for Lactobacilli (CERELA-CONICET), Tucuman CP4000, Argentina
- Correspondence: (J.V.); (S.F.); (H.K.)
| | - Haruki Kitazawa
- Food and Feed Immunology Group, Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Livestock Immunology Unit, International Education and Research Center for Food and Agricultural Immunology (CFAI), Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan
- Correspondence: (J.V.); (S.F.); (H.K.)
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Liu Y, Gu W, Liu X, Zou Y, Wu Y, Xu Y, Han D, Wang J, Zhao J. Joint Application of Lactobacillus plantarum and Bacillus subtilis Improves Growth Performance, Immune Function and Intestinal Integrity in Weaned Piglets. Vet Sci 2022; 9:vetsci9120668. [PMID: 36548829 PMCID: PMC9781797 DOI: 10.3390/vetsci9120668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
This study was conducted to explore the effects of the joint application of Lactobacillus plantarum and Bacillus subtilis on growth performance, immune function, antioxidant capacity, intestinal integrity, and gut microbiota composition in weaned piglets. The piglets were allocated randomly into 4 dietary groups, which were a control diet (NC), NC + 150 ppm mucilage sulfate (PC), and 3 additional diets containing 1 kg/t (LT), 1.5 kg/t (MT), or 2 kg/t (HT) mixture of Lactobacillus plantarum and Bacillus subtilis, respectively. Results showed that joint application of Lactobacillus plantarum and Bacillus subtilis increased ADFI and ADG of weaned piglets in d 14~28 and d 28~42 (p < 0.05), and decreased serum concentrations of DAO, IL-1β, TNF-α, and IL-2. The LT group increased jejunal and colonic sIgA contents compared with the PC group (p < 0.05). Groups of MT and HT increased colonic mRNA expression of host defense peptides and tight junction proteins compared with the NC and PC groups. The joint application of Lactobacillus plantarum and Bacillus subtilis increased the abundance of colonic Lactobacillus compared with NC and PC groups (p < 0.10). In conclusion, the joint application of Lactobacillus plantarum and Bacillus subtilis as an antibiotics alternative improved growth performance via promoting immune function and intestinal integrity of weaned piglets.
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Affiliation(s)
- Yisi Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Wei Gu
- Shandong Provincial Key Laboratory of Animal Microecological Agent, Shandong Baolai Leelai Bioengineering Co., Ltd., Tai’an 271000, China
| | - Xiaoyi Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Youwei Zou
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yujun Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Youhan Xu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Dandan Han
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Junjun Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jinbiao Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- Correspondence: ; Tel.: +86-156-0091-1358
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Li K, Yang M, Tian M, Jia L, Du J, Wu Y, Li L, Yuan L, Ma Y. Lactobacillus plantarum 17-5 attenuates Escherichia coli-induced inflammatory responses via inhibiting the activation of the NF-κB and MAPK signalling pathways in bovine mammary epithelial cells. BMC Vet Res 2022; 18:250. [PMID: 35764986 PMCID: PMC9238091 DOI: 10.1186/s12917-022-03355-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 06/21/2022] [Indexed: 11/10/2022] Open
Abstract
Background Mastitis is one of the most prevalent diseases and causes considerable economic losses in the dairy farming sector and dairy industry. Presently, antibiotic treatment is still the main method to control this disease, but it also brings bacterial resistance and drug residue problems. Lactobacillus plantarum (L. plantarum) is a multifunctional probiotic that exists widely in nature. Due to its anti-inflammatory potential, L. plantarum has recently been widely researched in complementary therapies for various inflammatory diseases. In this study, the apoptotic ratio, the expression levels of various inflammatory mediators and key signalling pathway proteins in Escherichia coli-induced bovine mammary epithelial cells (BMECs) under different doses of L. plantarum 17–5 intervention were evaluated. Results The data showed that L. plantarum 17–5 reduced the apoptotic ratio, downregulated the mRNA expression levels of TLR2, TLR4, MyD88, IL1β, IL6, IL8, TNFα, COX2, iNOS, CXCL2 and CXCL10, and inhibited the activation of the NF-κB and MAPK signalling pathways by suppressing the phosphorylation levels of p65, IκBα, p38, ERK and JNK. Conclusions The results proved that L. plantarum 17–5 exerted alleviative effects in Escherichia coli-induced inflammatory responses of BMECs. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03355-9.
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Affiliation(s)
- Ke Li
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Ming Yang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Mengyue Tian
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan, 056038, Hebei, China
| | - Li Jia
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Jinliang Du
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China.,Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Yinghao Wu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Lianmin Li
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Lining Yuan
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China
| | - Yuzhong Ma
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, 071001, Hebei, China.
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Wei CX, Wu JH, Huang YH, Wang XZ, Li JY. Lactobacillus plantarum improves LPS-induced Caco2 cell line intestinal barrier damage via cyclic AMP-PKA signaling. PLoS One 2022; 17:e0267831. [PMID: 35639684 PMCID: PMC9154120 DOI: 10.1371/journal.pone.0267831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 04/17/2022] [Indexed: 11/18/2022] Open
Abstract
Lactobacillus plantarum (LP) has been shown to exhibit protective effects on intestinal barrier function in septic rats, although the regulatory mechanism has not been established. We determined whether LP imparts such protective effects in a lipopolysaccharide (LPS)-induced Caco2 cell monolayer model and whether cAMP-PKA signaling is the underlying mechanism of action. The cyclic adenosine monophosphate (cAMP) agonist, forskolin (FSK), and the protein kinase A (PKA) inhibitor, HT89, were used to study the protective effect of LP on the destruction of the tight junction (TJ) structure of cells treated with LPS and the corresponding changes in cAMP-PKA signaling. Our experimental results demonstrated that LP promoted the expression of TJ proteins between Caco2 cells after LPS treatment, and increased the electrical barrier detection (TEER) between Caco2 cells. Moreover, transmission electron microscopy (TEM) revealed that the TJ structural integrity of cells treated with LPS + LP was improved compared to cells treated with LPS alone. In addition, our findings were consistent between the FSK and LP intervention group, while HT89 inhibited LP influence. Taken together, our results indicate that LP has an improved protective effect on LPS-induced damage to the monolayer membrane barrier function of Caco2 cells and is regulated by the cAMP-PKA pathway.
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Affiliation(s)
- Chen-Xiang Wei
- Department of Gastroenterology and Fujian Institute of Digestive Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, P.R. China
| | - Ju-Hua Wu
- Digestive Endoscopy Center, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, P.R. China
| | - Yue-Hong Huang
- Department of Gastroenterology and Fujian Institute of Digestive Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, P.R. China
| | - Xiao-Zhong Wang
- Department of Gastroenterology and Fujian Institute of Digestive Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, P.R. China
- * E-mail: (XZW); (JYL)
| | - Jian-Ying Li
- Department of Gastroenterology and Fujian Institute of Digestive Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, P.R. China
- * E-mail: (XZW); (JYL)
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Liu J, Feng X, Li B, Sun Y, Jin T, Feng M, Ni Y, Liu M. Lactobacillus rhamnosus GR-1 Alleviates Escherichia coli-Induced Inflammation via NF-κB and MAPKs Signaling in Bovine Endometrial Epithelial Cells. Front Cell Infect Microbiol 2022; 12:809674. [PMID: 35310848 PMCID: PMC8924357 DOI: 10.3389/fcimb.2022.809674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/09/2022] [Indexed: 11/13/2022] Open
Abstract
Escherichia coli counts as a major endometritis-causing pathogen among dairy cows, which lowered the economic benefits of dairy farming seriously. Probiotic consumption has been reported to impart beneficial effects on immunomodulation. However, the inflammatory regulation mechanism of probiotics on endometritis in dairy cows remains unexplored. The current work aimed to clarify the mechanism whereby Lactobacillus rhamnosus GR-1 (L. rhamnosus GR-1) resists bovine endometrial epithelial cells (BEECs) inflammatory injury induced by E. coli. The model of cellular inflammatory injury was established in the BEECs, which comes from the uterus of healthy dairy cows using E. coli. The outcome of L. rhamnosus GR-1 addition on inflammation was evaluated in BEECs with E. coli-induced endometritis. The underlying mechanisms of anti-inflammation by L. rhamnosus GR-1 were further explored in E. coli-stimulated BEECs. In accordance with the obtained results, the use L. rhamnosus GR-1 alone could not cause the change of inflammatory factors, while L. rhamnosus GR-1 could significantly alleviate the expression of E. coli-induced inflammatory factors. Based on further study, L. rhamnosus GR-1 significantly hindered the TLR4 and MyD88 expression stimulated by E. coli. Moreover, we observed that in BEECs, L. rhamnosus GR-1 could inhibit the E. coli-elicited expressions of pathway proteins that are associated with NF-κB and MAPKs. Briefly, L. rhamnosus GR-1 can effectively protect against E. coli-induced inflammatory response that may be closely related to the inhibition of TLR4 and MyD88 stimulating NF-κB and MAPKs.
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Yang KM, Zhu C, Wang L, Cao ST, Yang XF, Gao KG, Jiang ZY. Early supplementation with Lactobacillus plantarum in liquid diet modulates intestinal innate immunity through toll-like receptor 4-mediated mitogen-activated protein kinase signaling pathways in young piglets challenged with Escherichia coli K88. J Anim Sci 2021; 99:6259343. [PMID: 33928383 DOI: 10.1093/jas/skab128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022] Open
Abstract
This study was conducted to investigate the effects of early supplementation during 4 to 18 d of age with Lactobacillus plantarum (LP) in liquid diets on intestinal innate immune response in young piglets infected with enterotoxigenic Escherichia coli (ETEC) K88. Seventy-two barrow piglets at 4 d old were assigned to basal or LP-supplemented liquid diet (5 × 1010 CFU·kg-1). On day 15, piglets from each group were orally challenged with either ETEC K88 (1 × 108 CFU·kg-1) or the same amount of phosphate-buffered saline. The intestinal mucosa, mesenteric lymph node (MLN), and spleen samples were collected on day 18. Here, we found that LP pretreatment significantly decreased the mRNA relative expression of inflammatory cytokines (interleukin [IL]-1β, IL-8, and tumor necrosis factor-α), porcine β-defensin 2 (pBD-2), and mucins (MUC1 and MUC4) in the jejunal mucosa in piglets challenged with ETEC K88 (P < 0.05). Moreover, LP significantly decreased the ileal mucosa mRNA relative expression of IL-8 and MUC4 in young piglets challenged with ETEC K88 (P < 0.05). Furthermore, the piglets of the LP + ETEC K88 group had lower protein levels of IL-8, secretory immunoglobulin A, pBD-2, and MUC4 in the jejunal mucosa than those challenged with ETEC K88 (P < 0.05). Besides, LP supplementation reduced the percentage of gamma/delta T cells receptor (γδTCR) and CD172a+ (SWC3+) cells in MLN and the percentage of γδTCR cells in the spleen of young piglets after the ETEC K88 challenge. Supplementation with LP in liquid diets prevented the upregulated protein abundance of toll-like receptor (TLR) 4, phosphorylation-p38, and phosphorylation-extracellular signal-regulated protein kinases in the jejunal mucosa induced by ETEC K88 (P < 0.05). In conclusion, LP supplementation in liquid diet possesses anti-inflammatory activity and modulates the intestinal innate immunity during the early life of young piglets challenged with ETEC K88, which might be attributed to the suppression of TLR4-mediated mitogen-activated protein kinase signaling pathways. Early supplementation with LP in liquid diets regulates the innate immune response, representing a promising immunoregulation strategy for maintaining intestinal health in weaned piglets.
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Affiliation(s)
- Kuanmin M Yang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
| | - Cui Zhu
- School of Life Sciences and Engineering, Foshan University, Foshan 528225, P.R. China
| | - Li Wang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
| | - Shuting T Cao
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
| | - Xuefen F Yang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
| | - Kaiguo G Gao
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
| | - Zongyong Y Jiang
- State Key Laboratory of Livestock and Poultry Breeding, Key Laboratory of Animal Nutrition and Feed in South China, Ministry of Agriculture and Rural Affairs, Guangdong, China. Key Laboratory of Animal Breeding and Nutrition, Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Institute of Animal Science, China, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, P.R. China
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