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Kim JY, Lee S, Kim G, Shin HJ, Lee EJ, Lee CS, Yoon S, Lee E, Lim A, Kim SH. Ameliorating effect of 2'-fucosyllactose and 6'-sialyllactose on lipopolysaccharide-induced intestinal inflammation. J Dairy Sci 2024; 107:4147-4160. [PMID: 38490539 DOI: 10.3168/jds.2024-24325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 02/08/2024] [Indexed: 03/17/2024]
Abstract
Human milk oligosaccharides (HMO) affect gut microbiota during neonatal development, particularly with respect to the immune system. Bovine milk-based infant formulas have low oligosaccharide contents. Thus, efforts to fortify infant formulas with HMO are being undertaken. Two major HMO, 2'-fucosyllactose (2'-FL) and 6'-sialyllactose (6'-SL), exert anti-inflammatory effects; however, the associations between anti-inflammatory effects induced by 2'-FL and 6'-SL cotreatment and gut microbiota composition and metabolite modulation remain unclear. Therefore, in this study, we evaluated the effects of a mixture of these HMO. To determine the optimal HMO ratio for anti-inflammatory effects and elucidate its mode of action, LPS-induced inflammatory HT-29 epithelial cells and intestinal-inflamed suckling mice were treated with various mixtures of 2'-FL and 6'-SL. A 2'-FL:6'-SL ratio of 5:1 was identified as the most effective pretreatment HMO mixture in vitro; thus, this ratio was selected and used for low-, middle-, and high-dose treatments for subsequent in vivo studies. In vivo, high-dose HMO treatment restored LPS-induced inflammation symptoms, such as BW loss, colon length reduction, histological structural damage, and intestinal gene expression related to inflammatory responses. High-dose HMO was the only treatment that modulated the major phyla Bacteroidetes and Firmicutes and the genera Ihubacter, Mageeibacillus, and Saccharofermentans. These changes in microbial composition were correlated with intestinal inflammation-related gene expression and short-chain fatty acid production. To our knowledge, our study is the first to report the effects of Ihubacter, Mageeibacillus, and Saccharofermentans on short-chain fatty acid levels, which can subsequently affect inflammatory cytokine and tight junction protein levels. Conclusively, the HMO mixture exerted anti-inflammatory effects through changes in microbiota and metabolite production. These findings suggest that supplementation of infant formula with HMO may benefit formula-fed infants by forming unique microbiota contributing to neonatal development.
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Affiliation(s)
- J-Y Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea; Institute of Life Science and Natural Resources, Korea University, Seoul 02841, Republic of Korea
| | - S Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - G Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - H J Shin
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - E J Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - C S Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea; Institute of Life Science and Natural Resources, Korea University, Seoul 02841, Republic of Korea
| | - S Yoon
- Lotte R&D Center, Seoul 07207, Republic of Korea
| | - E Lee
- Lotte R&D Center, Seoul 07207, Republic of Korea
| | - A Lim
- Lotte R&D Center, Seoul 07207, Republic of Korea
| | - S H Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea; Institute of Life Science and Natural Resources, Korea University, Seoul 02841, Republic of Korea.
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Zhou S, Zhou H, Qian J, Han J, Zhang Y, Li Y, Zhang M, Cong J. Compound prebiotics as prophylactic and adjunctive treatments ameliorate DSS-induced colitis through gut microbiota modulation effects. Int J Biol Macromol 2024; 270:132362. [PMID: 38750864 DOI: 10.1016/j.ijbiomac.2024.132362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 04/29/2024] [Accepted: 05/11/2024] [Indexed: 05/19/2024]
Abstract
The prophylactic and adjunctive impacts of compound prebiotics (CP), comprising galacto-oligosaccharides, fructo-oligosaccharides, and isomalto-oligosaccharides, on colitis remain unclear. This study aimed to elucidate the effects of CP on dextran sodium sulfate (DSS)-induced colitis via modulation of the gut microbiota. Mice received prophylactic CP (PCP) for three weeks and DSS in the second week. In the third week, therapeutic CP, mesalazine, and a combination of CP and mesalazine (CPM) were administered to mice with DSS-induced colitis. The administration of PCP and CPM was found to ameliorate colitis, as evidenced by increases in body weight and colon length, elevation of the anti-inflammatory cytokine IL-10, and reductions in the disease activity index, histological scores, and levels of pro-inflammatory cytokines in mice with DSS-induced colitis on days 14 or 21. Furthermore, an increase in the relative abundance of probiotics (Ligilactobacillus, Bifidobacterium, and Limosilactobacillus), alpha diversity indices, short-chain fatty acids (SCFA) contents, and microbial network complexity was observed following PCP or CPM treatment. Correlation analysis revealed positive associations between these probiotics and both SCFA and IL-10, and negative associations with pro-inflammatory cytokines. This study highlighted the potential of CP as novel prophylactic and adjunctive treatments for alleviating DSS-induced intestinal inflammation and maintaining gut microbiota homeostasis.
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Affiliation(s)
- Siyu Zhou
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Hongxia Zhou
- Department of Cardiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Jia Qian
- Department of Oncology, Qingdao Central Hospital, University of Health and Rehabilitation Sciences, Qingdao 266000, China
| | - Jiaqi Han
- Department of Cardiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - Yun Zhang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China
| | - Ying Li
- Shanxi Zhendong Wuhe Medical Care Hall Co., Changzhi, Shanxi, China
| | - Meiping Zhang
- Shanxi Zhendong Wuhe Medical Care Hall Co., Changzhi, Shanxi, China
| | - Jing Cong
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266000, China.
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Song Y, Lei H, Cao Z, Zhang C, Chen C, Wu M, Zhang H, Du R, Lijun L, Chen X, Zhang L. Long-Term Triclocarban Exposure Induced Enterotoxicity by Triggering Intestinal AhR-Mediated Inflammation and Disrupting Microbial Community in Mice. Chem Res Toxicol 2024; 37:658-668. [PMID: 38525689 DOI: 10.1021/acs.chemrestox.4c00042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Exposure to triclocarban (TCC), a commonly used antibacterial agent, has been shown to induce significant intestine injuries and colonic inflammation in mice. However, the detailed mechanisms by which TCC exposure triggered enterotoxicity remain largely unclear. Herein, intestinal toxicity effects of long-term and chronic TCC exposure were investigated using a combination of histopathological assessments, metagenomics, targeted metabolomics, and biological assays. Mechanically, TCC exposure caused induction of intestinal aryl hydrocarbon receptor (AhR) and its transcriptional target cytochrome P4501A1 (Cyp1a1) leading to dysfunction of the gut barrier and disruption of the gut microbial community. A large number of lipopolysaccharides (LPS) are released from the gut lumen into blood circulation owing to the markedly increased permeability and gut leakage. Consequently, toll-like receptor-4 (TLR4) and NF-κB signaling pathways were activated by high levels of LPS. Simultaneously, classic macrophage phenotypes were switched by TCC, shown with marked upregulation of macrophage M1 and downregulation of macrophage M2 that was accompanied by striking upregulation of proinflammatory factors such as Il-1β, Il-6, Il-17, and Tnf-α in the intestinal lamina propria. These findings provide new evidence for the TCC-induced enterotoxicity.
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Affiliation(s)
- Yuchen Song
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hehua Lei
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zheng Cao
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cui Zhang
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chuan Chen
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengjing Wu
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, Guangxi, China
| | - Huabao Zhang
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
| | - Ruichen Du
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liu Lijun
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyu Chen
- The People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi Academy of Medical Sciences, Nanning 530021, Guangxi, China
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Imaging, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, Chinese Academy of Sciences (CAS), Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Wang L, Wu S, Chen T, Xiong L, Wang F, Song H, Zhou J, Wei S, Ren B, Shen X. A quinoa peptide protects impaired mucus barriers in colitis mice by inhibiting NF-κB-TRPV1 signaling and regulating the gut microbiota. Food Funct 2024; 15:1223-1236. [PMID: 38226896 DOI: 10.1039/d3fo04905a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Inflammatory bowel diseases (IBD) are chronic inflammatory conditions that lead to the disruption of the colonic mucus barrier. Quinoa has a well-balanced profile of essential amino acids and exhibits excellent anti-inflammatory effects. We recently explored the beneficial effects and relevant mechanisms of a novel quinoa peptide TPGAFF on impaired mucus barriers in mice with chemically induced colitis. Our findings demonstrated that TPGAFF, administered in low and high doses for 28 days, effectively attenuated the pathological phenotype and reduced intestinal permeability in colitis mice. TPGAFF demonstrated its protective abilities by restoring the impaired mucus barrier, inhibiting the activation of inflammatory signaling and reducing inflammatory cytokine levels. Moreover, TPGAFF positively influenced the composition of the gut microbiota by reducing inflammation-related microbes. Additionally, TPGAFF inhibited the activation of TRPV1 nociceptor and decreased the levels of neuropeptides. Conclusively, our results indicated that oral administration of TPGAFF may be an optional approach for the treatment of mucus barrier damage.
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Affiliation(s)
- Luanfeng Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Shufeng Wu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Tong Chen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Ling Xiong
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Fang Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Jianxin Zhou
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Shixiang Wei
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Bo Ren
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Xinchun Shen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
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