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Speciale A, Molonia MS, Muscarà C, Cristani M, Salamone FL, Saija A, Cimino F. An overview on the cellular mechanisms of anthocyanins in maintaining intestinal integrity and function. Fitoterapia 2024; 175:105953. [PMID: 38588905 DOI: 10.1016/j.fitote.2024.105953] [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: 02/02/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/10/2024]
Abstract
Structural and functional changes of the intestinal barrier, as a consequence of a number of (epi)genetic and environmental causes, have a main role in penetrations of pathogens and toxic agents, and lead to the development of inflammation-related pathological conditions, not only at the level of the GI tract but also in other extra-digestive tissues and organs. Anthocyanins (ACNs), a subclass of polyphenols belonging to the flavonoid group, are well known for their health-promoting properties and are widely distributed in the human diet. There is large evidence about the correlation between the human intake of ACN-rich products and a reduction of intestinal inflammation and dysfunction. Our review describes the more recent advances in the knowledge of cellular and molecular mechanisms through which ACNs can modulate the main mechanisms involved in intestinal dysfunction and inflammation, in particular the inhibition of the NF-κB, JNK, MAPK, STAT3, and TLR4 proinflammatory pathways, the upregulation of the Nrf2 transcription factor and the expression of tight junction proteins and mucins.
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Affiliation(s)
- Antonio Speciale
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
| | - Maria Sofia Molonia
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy; "Prof. Antonio Imbesi" Foundation, University of Messina, Messina 98100, Italy.
| | - Claudia Muscarà
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
| | - Mariateresa Cristani
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
| | - Federica Lina Salamone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
| | - Antonella Saija
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
| | - Francesco Cimino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno D'Alcontres 31, Messina 98166, Italy.
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Wang X, Liu J, Wei J, Zhang Y, Xu Y, Yue T, Yuan Y. Protective Mechanism of Eurotium amstelodami from Fuzhuan Brick Tea against Colitis and Gut-Derived Liver Injury Induced by Dextran Sulfate Sodium in C57BL/6 Mice. Nutrients 2024; 16:1178. [PMID: 38674869 PMCID: PMC11054642 DOI: 10.3390/nu16081178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024] Open
Abstract
The study explored the potential protective impact of the probiotic fungus Eurotium amstelodami in Fuzhuan brick tea on ulcerative colitis, along with the underlying mechanism. A spore suspension of E. amstelodami was administered to C57BL/6 mice to alleviate DSS-induced colitis. The findings indicated that administering E. amstelodami evidently enhanced the ultrastructure of colonic epithelium, showing characteristics such as enhanced TJ length, reduced microvilli damage, and enlarged intercellular space. After HLL supplementation, the activation of the liver inflammation pathway, including TLR4/NF-kB and NLRP3 inflammasome caused by DSS, was significantly suppressed, and bile acid metabolism, linking liver and gut, was enhanced, manifested by restoration of bile acid receptor (FXR, TGR5) level. The dysbiosis of the gut microbes in colitis mice was also restored by HLL intervention, characterized by the enrichment of beneficial bacteria (Lactobacillus, Bifidobacterium, Akkermansia, and Faecalibaculum) and fungi (Aspergillus, Trichoderma, Wallemia, Eurotium, and Cladosporium), which was closely associated with lipid metabolism and amino acid metabolism, and was negatively correlated with inflammatory gene expression. Hence, the recovery of gut microbial community structure, implicated deeply in the inflammatory index and metabolites profile, might play a crucial role in the therapeutic mechanism of HLL on colitis.
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Affiliation(s)
- Xin Wang
- College of Health Management, Shangluo University, Shangluo 726000, China; (X.W.); (J.L.)
- Shaanxi Union Research Center of University and Enterprise for Healthy and Wellness Industry, Shangluo 726000, China
| | - Jinhu Liu
- College of Health Management, Shangluo University, Shangluo 726000, China; (X.W.); (J.L.)
- Shaanxi Union Research Center of University and Enterprise for Healthy and Wellness Industry, Shangluo 726000, China
| | - Jianping Wei
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (J.W.); (Y.Z.); (T.Y.)
| | - Yuxiang Zhang
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (J.W.); (Y.Z.); (T.Y.)
| | - Yunpeng Xu
- Shangluo Characteristic Industry and Leisure Agriculture Guidance Center, Shangluo 726000, China;
| | - Tianli Yue
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (J.W.); (Y.Z.); (T.Y.)
| | - Yahong Yuan
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (J.W.); (Y.Z.); (T.Y.)
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Wang L, Li M, Gu Y, Shi J, Yan J, Wang X, Li B, Wang B, Zhong W, Cao H. Dietary flavonoids-microbiota crosstalk in intestinal inflammation and carcinogenesis. J Nutr Biochem 2024; 125:109494. [PMID: 37866426 DOI: 10.1016/j.jnutbio.2023.109494] [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: 09/27/2022] [Revised: 02/20/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Colorectal cancer (CRC) is currently the third leading cancer and commonly develops from chronic intestinal inflammation. A strong association was found between gut microbiota and intestinal inflammation and carcinogenic risk. Flavonoids, which are abundant in vegetables and fruits, can inhibit inflammation, regulate gut microbiota, protect gut barrier integrity, and modulate immune cell function, thereby attenuating colitis and preventing carcinogenesis. Upon digestion, about 90% of flavonoids are transported to the colon without being absorbed in the small intestine. This phenomenon increases the abundance of beneficial bacteria and enhances the production of short-chain fatty acids. The gut microbe further metabolizes these flavonoids. Interestingly, some metabolites of flavonoids play crucial roles in anti-inflammation and anti-tumor effects. This review summarizes the modulatory effect of flavonoids on gut microbiota and their metabolism by intestinal microbe under disease conditions, including inflammatory bowel disease, colitis-associated cancer (CAC), and CRC. We focus on dietary flavonoids and microbial interactions in intestinal mucosal barriers as well as intestinal immune cells. Results provide novel insights to better understand the crosstalk between dietary flavonoids and gut microbiota and support the standpoint that dietary flavonoids prevent intestinal inflammation and carcinogenesis.
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Affiliation(s)
- Lei Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China; Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Mengfan Li
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Yu Gu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Junli Shi
- Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Jing Yan
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China; Department of Nutrition, the Second Affiliated Hospital, Air Force Medical University, Xi'an, China
| | - Xin Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Bingqing Li
- Department of Gastroenterology and Hepatology, The Affiliated Hospital of Chengde Medical College, Hebei, China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China
| | - Weilong Zhong
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
| | - Hailong Cao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Diseases, Tianjin Key Laboratory of Digestive Diseases, Tianjin, China.
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Ijinu TP, De Lellis LF, Shanmugarama S, Pérez-Gregorio R, Sasikumar P, Ullah H, Buccato DG, Di Minno A, Baldi A, Daglia M. Anthocyanins as Immunomodulatory Dietary Supplements: A Nutraceutical Perspective and Micro-/Nano-Strategies for Enhanced Bioavailability. Nutrients 2023; 15:4152. [PMID: 37836436 PMCID: PMC10574533 DOI: 10.3390/nu15194152] [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: 09/07/2023] [Revised: 09/21/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
Anthocyanins (ACNs) have attracted considerable attention for their potential to modulate the immune system. Research has revealed their antioxidant and anti-inflammatory properties, which play a crucial role in immune regulation by influencing key immune cells, such as lymphocytes, macrophages, and dendritic cells. Moreover, ACNs contribute towards maintaining a balance between proinflammatory and anti-inflammatory cytokines, thus promoting immune health. Beyond their direct effects on immune cells, ACNs significantly impact gut health and the microbiota, essential factors in immune regulation. Emerging evidence suggests that they positively influence the composition of the gut microbiome, enhancing their immunomodulatory effects. Furthermore, these compounds synergize with other bioactive substances, such as vitamins and minerals, further enhancing their potential as immune-supporting dietary supplements. However, detailed clinical studies must fully validate these findings and determine safe dosages across varied populations. Incorporating these natural compounds into functional foods or supplements could revolutionize the management of immune-related conditions. Personalized nutrition and healthcare strategies may be developed to enhance overall well-being and immune resilience by fully understanding the mechanisms underlying the actions of their components. Recent advancements in delivery methods have focused on improving the bioavailability and effectiveness of ACNs, providing promising avenues for future applications.
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Affiliation(s)
- Thadiyan Parambil Ijinu
- Naturæ Scientific, Kerala University-Business Innovation and Incubation Centre, Kariavattom Campus, University of Kerala, Thiruvananthapuram 695581, India;
- The National Society of Ethnopharmacology, VRA-179, Mannamoola, Peroorkada P.O., Thiruvananthapuram 695005, India
| | - Lorenza Francesca De Lellis
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Santny Shanmugarama
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Rosa Pérez-Gregorio
- Food and Health Omics Group, Institute of Agroecology and Food, Faculty of Sciences, University of Vigo, 32004 Ourense, Spain;
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- Department of Analytical and Food Chemistry, Galicia Sur Health Research Institute (IISGS), SERGAS-UVIGO, 32002 Ourense, Spain
| | | | - Hammad Ullah
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Daniele Giuseppe Buccato
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Alessandro Di Minno
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
- CEINGE-Biotecnologie Avanzate, Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Alessandra Baldi
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
| | - Maria Daglia
- Department of Pharmacy, University of Napoli Federico II, Via D. Montesano 49, 80131 Naples, Italy; (L.F.D.L.); (D.G.B.); (A.D.M.); (A.B.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
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MIRMOHAMMADALI SN, ROSENKRANZ SK. Dietary phytochemicals, gut microbiota composition, and health outcomes in human and animal models. BIOSCIENCE OF MICROBIOTA, FOOD AND HEALTH 2023; 42:152-171. [PMID: 37404568 PMCID: PMC10315191 DOI: 10.12938/bmfh.2022-078] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/17/2023] [Indexed: 07/06/2023]
Abstract
The role of the composition of the gut microbiota on human health is not well understood. However, during the past decade, an increased emphasis has been placed on the influence of the impact of nutrition on the composition of gut microbiota and how the gut microbiota affects human health. The current review focuses on the role of some of the most studied phytochemicals on the composition of the gut microbiota. First, the review highlights the state of the research evidence regarding dietary phytochemical consumption and gut microbiota composition, including the influence of phytochemicals such as polyphenols, glucosinolates, flavonoids, and sterols that are present in vegetables, nuts, beans, and other foods. Second, the review identifies changes in health outcomes with altered gut microbiota composition, in both animal and human model studies. Third, the review highlights research that includes both associations between dietary phytochemical consumption and gut microbiota composition, and associations between the gut microbiota composition and health outcomes, in order to elucidate the role of the gut microbiota in the relationship between dietary phytochemical consumption and health outcomes in humans and animals. The current review indicated that phytochemicals can beneficially alter gut microbiota composition and decrease the risk for some diseases, such as cancers, and improve some cardiovascular and metabolic risk biomarkers. There is an urgent demand for high-quality studies that determine the relationships between the consumption of phytochemicals and health outcomes, examining gut microbiota as a moderator or mediator.
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Affiliation(s)
- Seyedeh Nooshan MIRMOHAMMADALI
- Department of Food, Nutrition, Dietetics and Health, Kansas
State University, 110 Anderson Hall, 919 Mid-Campus Drive North, Manhattan, KS 66506-0110,
USA
| | - Sara K. ROSENKRANZ
- Department of Kinesiology and Nutrition Sciences, University
of Nevada Las Vegas, 4505 S. Maryland Pkwy, Las Vegas, NV 89154, USA
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Liu F, Smith AD, Wang TTY, Pham Q, Yang H, Li RW. Ellagitannin Punicalagin Disrupts the Pathways Related to Bacterial Growth and Affects Multiple Pattern Recognition Receptor Signaling by Acting as a Selective Histone Deacetylase Inhibitor. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:5016-5026. [PMID: 36917202 DOI: 10.1021/acs.jafc.2c08738] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Punicalagin (PA) is a key ellagitannin abundant in pomegranate with wide-ranging biological activities. In this study, we examined the biological processes by which PA regulates bacterial growth and inflammation in human cells using multiomics and molecular docking approaches. PA promoted macrophage-mediated bacterial killing and inhibited the growth of Citrobacter rodentium by inducing a distinct metabolome pattern. PA acted as a selective regulator of histone deacetylases (HDACs) and affected 37 pathways in macrophages, including signaling mediated by pattern recognition receptors, such as Toll-like and NOD-like receptors. In silico simulation showed that PA can bind with high affinity to HDAC7. PA downregulated HDAC7 at both mRNA and protein levels and resulted in a decrease in the level of histone 3 lysine 27 acetylation. Our findings provide evidence that PA exerts its biological effects via multiple pathways, which can be exploited in the development of this bioactive food ingredient for disease management.
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Affiliation(s)
- Fang Liu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Allen D Smith
- Diet, Genomics and Immunology Laboratory, USDA-ARS, Beltsville, Maryland 20705, United States
| | - Thomas T Y Wang
- Diet, Genomics and Immunology Laboratory, USDA-ARS, Beltsville, Maryland 20705, United States
| | - Quynhchi Pham
- Diet, Genomics and Immunology Laboratory, USDA-ARS, Beltsville, Maryland 20705, United States
| | - Haiyan Yang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Robert W Li
- Animal Parasitic Diseases Laboratory, USDA-ARS, Beltsville, Maryland 20705, United States
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Blackcurrant Alleviates Dextran Sulfate Sodium (DSS)-Induced Colitis in Mice. Foods 2023; 12:foods12051073. [PMID: 36900589 PMCID: PMC10000425 DOI: 10.3390/foods12051073] [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: 02/02/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Previous studies have reported that anthocyanin (ACN)-rich materials have beneficial effects on ulcerative colitis (UC). Blackcurrant (BC) has been known as one of the foods rich in ACN, while studies demonstrating its effect on UC are rare. This study attempted to investigate the protective effects of whole BC in mice with colitis using dextran sulfate sodium (DSS). Mice were orally given whole BC powder at a dose of 150 mg daily for four weeks, and colitis was induced by drinking 3% DSS for six days. Whole BC relieved symptoms of colitis and pathological changes in the colon. The overproduction of pro-inflammatory cytokines such as IL-1β, TNF-α, and IL-6 in serum and colon tissues was also reduced by whole BC. In addition, whole BC significantly lowered the levels of mRNA and protein of downstream targets in the NF-κB signaling pathway. Furthermore, BC administration increased the expression of genes related to barrier function: ZO-1, occludin, and mucin. Moreover, the whole BC modulated the relative abundance of gut microbiota altered with DSS. Therefore, the whole BC has demonstrated the potential to prevent colitis through attenuation of the inflammatory response and regulation of the gut microbial composition.
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Li H, Xiao C, Wang F, Guo X, Zhou Z, Jiang Y. Blueberry-Mulberry Extract Alleviates Cognitive Impairment, Regulates Gut Metabolites, and Inhibits Inflammation in Aged Mice. Foods 2023; 12:foods12040860. [PMID: 36832936 PMCID: PMC9956669 DOI: 10.3390/foods12040860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/22/2023] Open
Abstract
Cognitive impairment is associated with aging; however, the underlying mechanism remains unclear. Our previous study found that polyphenol-rich blueberry-mulberry extract (BME) had an antioxidant capability and effectively alleviated cognitive impairment in a mouse model of Alzheimer's disease. Thus, we hypothesized that BME would improve cognitive performance in naturally aging mice and assessed its effects on related signaling pathways. Eighteen-month-old C57BL/6J mice were gavaged with 300 mg/kg/d of BME for 6 weeks. Behavioral phenotypes, cytokine levels, tight junction protein levels, and the histopathology of the brain were assessed, and 16S ribosomal RNA sequencing and targeted metabolome analyses were used for gut microbiota and metabolite measurements. Our results showed that the cognitive performance of aged mice in the Morris water maze test was improved after BME treatment, neuronal loss was reduced, IL-6 and TNF-α levels in the brain and intestine were decreased, and the levels of intestinal tight junction proteins (ZO-1 and occludin) were increased. Further, 16S sequencing showed that BME significantly increased the relative abundance of Lactobacillus, Streptococcus, and Lactococcus and decreased the relative abundance of Blautia, Lachnoclostridium, and Roseburia in the gut. A targeted metabolomic analysis showed that BME significantly increased the levels of 21 metabolites, including α-linolenic acid, vanillic acid, and N-acetylserotonin. In conclusion, BME alters the gut microbiota and regulates gut metabolites in aged mice, which may contribute to the alleviation of cognitive impairment and to inflammation inhibition in both the brain and the gut. Our results provide a basis for future research on natural antioxidant intervention as a treatment strategy for aging-related cognitive impairment.
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Affiliation(s)
- Hui Li
- Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Changhao Xiao
- Institute of Environmental and Operational Medicine, Tianjin 300050, China
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Feng Wang
- Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xuqi Guo
- Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Zhongkai Zhou
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yugang Jiang
- Institute of Environmental and Operational Medicine, Tianjin 300050, China
- Correspondence: ; Tel.: +86-139-2077-0716
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Selective Activity of an Anthocyanin-Rich, Purified Blueberry Extract upon Pathogenic and Probiotic Bacteria. Foods 2023; 12:foods12040734. [PMID: 36832808 PMCID: PMC9955905 DOI: 10.3390/foods12040734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Blueberry extracts have been widely recognized as possessing antimicrobial activity against several potential pathogens. However, the contextualization of the interaction of these extracts with beneficial bacteria (i.e., probiotics), particularly when considering the food applications of these products, may be of importance, not only because their presence is important in the regular gut microbiota, but also because they are important constituents of regular and functional foodstuffs. Therefore, the present work first sought to demonstrate the inhibitory effect of a blueberry extract upon four potential food pathogens and, after identifying the active concentrations, evaluated their impact upon the growth and metabolic activity (organic acid production and sugar consumption) of five potential probiotic microorganisms. Results showed that the extract, at a concentration that inhibited L. monocytogenes, B. cereus, E. coli and S. enteritidis (1000 μg mL-1), had no inhibitory effect on the growth of the potential probiotic stains used. However, the results demonstrated, for the first time, that the extract had a significant impact on the metabolic activity of all probiotic strains, resulting in higher amounts of organic acid production (acetic, citric and lactic acids) and an earlier production of propionic acid.
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Liu F, Smith AD, Wang TTY, Pham Q, Cheung L, Yang H, Li RW. Biological pathways via which the anthocyanin malvidin alleviated the murine colitis induced by Citrobacter rodentium. Food Funct 2023; 14:1048-1061. [PMID: 36562464 DOI: 10.1039/d2fo02873e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enteropathogenic E. coli (EPEC) is a causal agent for diarrheal diseases and contributes to morbidity and mortality in children under the age of five years. The emergence and rapid spread of antibiotic resistant EPEC strains necessitate the search for novel alternatives to antibiotics. In this study, we used Citrobacter rodentium, a natural mouse pathogen that mimics many aspects of human EPEC infections, to investigate the antimicrobial properties of the blueberry anthocyanin malvidin 3-glucoside (MG) using a multi-omics approach. MG supplementation reversed the bodyweight loss induced by C. rodentium infection and improved colonic hyperplasia and histopathological scores. In the colon tissue, MG supplementation significantly increased the expression of Hace1, a key regulator of TNFα-driven signaling, and impacted multiple pathways, such as TGFβ signaling. MG partially restored C. rodentium-induced microbial dysbiosis and significantly enhanced the abundance of the probiotic Bifidobacterium animalis. Moreover, MG disrupted the interactions of E. coli with other gut microbes. MG significantly mediated several host- and microbiota-derived metabolites, such as cytosine, ureidopropionic acid, and glutaric acid. MG normalized the bioactive lipid oleoylethanolamine, a member of the endocannabinoid system, from the dysregulated level in infected mice, directly contributing to its overall beneficial effects. Our findings provided novel insights into molecular processes via which the flavonoid malvidin exerts its biological effects in the gastrointestinal tract.
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Affiliation(s)
- Fang Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China.
| | - Allen D Smith
- USDA-ARS, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
| | - Thomas T Y Wang
- USDA-ARS, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
| | - Quynhchi Pham
- USDA-ARS, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
| | - Lumei Cheung
- USDA-ARS, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
| | - Haiyan Yang
- College of Public Health, Zhengzhou University, Zhengzhou, China.
| | - Robert W Li
- USDA-ARS, Animal Parasitic Diseases Laboratory, Beltsville, MD, USA.
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11
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Inosine Pretreatment Attenuates LPS-Induced Lung Injury through Regulating the TLR4/MyD88/NF-κB Signaling Pathway In Vivo. Nutrients 2022; 14:nu14142830. [PMID: 35889786 PMCID: PMC9318366 DOI: 10.3390/nu14142830] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 12/10/2022] Open
Abstract
Inosine is a type of purine nucleoside, which is considered to a physiological energy source, and exerts a widely range of anti-inflammatory efficacy. The TLR4/MyD88/NF-κB signaling pathway is essential for preventing host oxidative stresses and inflammation, and represents a promising target for host-directed strategies to improve some forms of disease-related inflammation. In the present study, the results showed that inosine pre-intervention significantly suppressed the pulmonary elevation of pro-inflammatory cytokines (including tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β)), malondialdehyde (MDA), nitric oxide (NO), and reactive oxygen species (ROS) levels, and restored the pulmonary catalase (CAT), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and myeloperoxidase (MPO) activities (p < 0.05) in lipopolysaccharide (LPS)-treated mice. Simultaneously, inosine pre-intervention shifted the composition of the intestinal microbiota by decreasing the ratio of Firmicutes/Bacteroidetes, elevating the relative abundance of Tenericutes and Deferribacteres. Moreover, inosine pretreatment affected the TLR4/MyD88/NF-κB signaling pathway in the pulmonary inflammatory response, and then regulated the expression of pulmonary iNOS, COX2, Nrf2, HO-1, TNF-α, IL-1β, and IL-6 levels. These findings suggest that oral administration of inosine pretreatment attenuates LPS-induced pulmonary inflammatory response by regulating the TLR4/MyD88/NF-κB signaling pathway, and ameliorates intestinal microbiota disorder.
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Pharmacological Effects of Polyphenol Phytochemicals on the Intestinal Inflammation via Targeting TLR4/NF-κB Signaling Pathway. Int J Mol Sci 2022; 23:ijms23136939. [PMID: 35805952 PMCID: PMC9266441 DOI: 10.3390/ijms23136939] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 02/05/2023] Open
Abstract
TLR4/NF-κB is a key inflammatory signaling transduction pathway, closely involved in cell differentiation, proliferation, apoptosis, and pro-inflammatory response. Toll like receptor 4 (TLR4), the first mammalian TLR to be characterized, is the innate immune receptor that plays a key role in inflammatory signal transductions. Nuclear factor kappa B (NF-κB), the TLR4 downstream, is the key to accounting for the expression of multiple genes involved in inflammatory responses, such as pro-inflammatory cytokines. Inflammatory bowel disease (IBD) in humans is a chronic inflammatory disease with high incidence and prevalence worldwide. Targeting the TLR4/NF-κB signaling pathway might be an effective strategy to alleviate intestinal inflammation. Polyphenol phytochemicals have shown noticeable alleviative effects by acting on the TLR4/NF-κB signaling pathway in intestinal inflammation. This review summarizes the pharmacological effects of more than 20 kinds of polyphenols on intestinal inflammation via targeting the TLR4/NF-κB signaling pathway. We expected that polyphenol phytochemicals targeting the TLR4/NF-κB signaling pathway might be an effective approach to treat IBD in future clinical research applications.
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Grape Pomace Extract Attenuates Inflammatory Response in Intestinal Epithelial and Endothelial Cells: Potential Health-Promoting Properties in Bowel Inflammation. Nutrients 2022; 14:nu14061175. [PMID: 35334833 PMCID: PMC8953566 DOI: 10.3390/nu14061175] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 12/11/2022] Open
Abstract
Inflammatory bowel disease (IBD) implies the chronic inflammation of the gastrointestinal tract, combined with systemic vascular manifestations. In IBD, the incidence of cardiovascular disease appears to be related to an increase of oxidative stress and endothelial dysfunction. Grape pomace contains high levels of anti-oxidant polyphenols that are able to counteract chronic inflammatory symptoms. The aim of this study was to determine whether grape pomace polyphenolic extract (GPE) was able to mitigate the overwhelming inflammatory response in enterocyte-like cells and to improve vascular function. Intestinal epithelial Caco-2 cells, grown in monolayers or in co-culture with endothelial cells (Caco-2/HMEC-1), were treated with different concentrations of GPE (1, 5, 10 µg/mL gallic acid equivalents) for 2 h and then stimulated with lipopolysaccharide (LPS) and tumor necrosis factor (TNF)-α for 16 h. Through multiple assays, the expression of intestinal and endothelial inflammatory mediators, intracellular reactive oxygen species (ROS) levels and NF-κB activation, as well as endothelial-leukocyte adhesion, were evaluated. The results showed that GPE supplementation prevented, in a concentration-dependent manner, the intestinal expression and release of interleukin (IL)-6, monocyte chemoattractant protein (MCP)-1, and matrix metalloproteinases (MMP)-9 and MMP-2. In Caco-2 cells, GPE also suppressed the gene expression of several pro-inflammatory markers, such as IL-1β, TNF-α, macrophage colony-stimulating factor (M-CSF), C-X-C motif ligand (CXCL)-10, intercellular adhesion molecule (ICAM)-1, vascular cell adhesion molecule (VCAM)-1, and cyclooxygenase (COX)-2. The GPE anti-inflammatory effect was mediated by the inhibition of NF-κB activity and reduced intracellular ROS levels. Furthermore, transepithelial GPE suppressed the endothelial expression of IL-6, MCP-1, VCAM-1, and ICAM-1 and the subsequent adhesion of leukocytes to the endothelial cells under pro-inflammatory conditions. In conclusion, our findings suggest grape pomace as a natural source of polyphenols with multiple health-promoting properties that could contribute to the mitigation of gut chronic inflammatory diseases and improve vascular endothelial function.
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14
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Wang L, Gao M, Kang G, Huang H. The Potential Role of Phytonutrients Flavonoids Influencing Gut Microbiota in the Prophylaxis and Treatment of Inflammatory Bowel Disease. Front Nutr 2021; 8:798038. [PMID: 34970585 PMCID: PMC8713745 DOI: 10.3389/fnut.2021.798038] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/25/2021] [Indexed: 12/19/2022] Open
Abstract
Inflammatory bowel disease (IBD), characterized by the chronic inflammation of the gastrointestinal tract, is comprised of two idiopathic chronic intestinal inflammatory diseases. As the incidence of IBD increases, so does the need for safe and effective treatments. Trillions of microorganisms are colonized in the mammalian intestine, coevolve with the host in a symbiotic relationship. Gut microbiota has been reported to be involved in the pathophysiology of IBD. In this regard, phytonutrients flavonoids have received increasing attention for their anti-oxidant and anti-inflammatory activities. In this review, we address recent advances in the interactions among flavonoids, gut microbiota, and IBD. Moreover, their possible potential mechanisms of action in IBD have been discussed. We conclude that there is a complex interaction between flavonoids and gut microbiota. It is expected that flavonoids can change or reshape the gut microbiota to provide important considerations for developing treatments for IBD.
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Affiliation(s)
- Lina Wang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Mengxue Gao
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Guangbo Kang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - He Huang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
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15
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Shi N, Chen X, Chen T. Anthocyanins in Colorectal Cancer Prevention Review. Antioxidants (Basel) 2021; 10:antiox10101600. [PMID: 34679735 PMCID: PMC8533526 DOI: 10.3390/antiox10101600] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 10/01/2021] [Accepted: 10/11/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is still a big health burden worldwide. Nutrition and dietary factors are known to affect colorectal cancer development and prognosis. The protective roles of diets rich in fruits and vegetables have been previously reported to contain high levels of cancer-fighting phytochemicals. Anthocyanins are the most abundant flavonoid compounds that are responsible for the bright colors of most blue, purple, and red fruits and vegetables, and have been shown to contribute to the protective effects of fruits and vegetables against cancer and other chronic diseases. Berries and grapes are the most common anthocyanin-rich fruits with antitumor effects. The antitumor effects of anthocyanins are determined by their structures and bioavailability as well as how they are metabolized. In this review, we aimed to discuss the preventive as well as therapeutic potentials of anthocyanins in CRC. We summarized the antitumor effects of anthocyanins and the mechanisms of action. We also discussed the potential pharmaceutical application of anthocyanins in practice.
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Affiliation(s)
- Ni Shi
- Department of Internal Medicine, Division of Medical Oncology, The Ohio State University, 1800 Cannon Drive, 13th Floor, Columbus, OH 43210, USA;
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
| | - Xiaoxin Chen
- Cancer Research Program, Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, 700 George St., Durham, NC 27707, USA;
| | - Tong Chen
- Department of Internal Medicine, Division of Medical Oncology, The Ohio State University, 1800 Cannon Drive, 13th Floor, Columbus, OH 43210, USA;
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA
- Correspondence: ; Tel.: +1-(614)-685-9119
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16
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Verediano TA, Stampini Duarte Martino H, Dias Paes MC, Tako E. Effects of Anthocyanin on Intestinal Health: A Systematic Review. Nutrients 2021; 13:1331. [PMID: 33920564 PMCID: PMC8074038 DOI: 10.3390/nu13041331] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023] Open
Abstract
Intestinal health relies on the association between the mucosal immune system, intestinal barrier and gut microbiota. Bioactive components that affect the gut microbiota composition, epithelial physical barrier and intestinal morphology were previously studied. The current systematic review evaluated evidence of anthocyanin effects and the ability to improve gut microbiota composition, their metabolites and parameters of the physical barrier; this was conducted in order to answer the question: "Does food source or extract of anthocyanin promote changes on intestinal parameters?". The data analysis was conducted following the PRISMA guidelines with the search performed at PubMed, Cochrane and Scopus databases for experimental studies, and the risk of bias was assessed by the SYRCLE tool. Twenty-seven studies performed in animal models were included, and evaluated for limitations in heterogeneity, methodologies, absence of information regarding allocation process and investigators' blinding. The data were analyzed, and the anthocyanin supplementation demonstrated positive effects on intestinal health. The main results identified were an increase of Bacteroidetes and a decrease of Firmicutes, an increase of short chain fatty acids production, a decrease of intestinal pH and intestinal permeability, an increase of the number of goblet cells and tight junction proteins and villi improvement in length or height. Thus, the anthocyanin supplementation has a potential effect to improve the intestinal health. PROSPERO (CRD42020204835).
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Affiliation(s)
- Thaísa Agrizzi Verediano
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil; (T.A.V.); (H.S.D.M.)
| | | | | | - Elad Tako
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14850, USA
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Andrade FDO, Liu F, Zhang X, Rosim MP, Dani C, Cruz I, Wang TTY, Helferich W, Li RW, Hilakivi-Clarke L. Genistein Reduces the Risk of Local Mammary Cancer Recurrence and Ameliorates Alterations in the Gut Microbiota in the Offspring of Obese Dams. Nutrients 2021; 13:nu13010201. [PMID: 33440675 PMCID: PMC7827465 DOI: 10.3390/nu13010201] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/29/2020] [Accepted: 01/05/2021] [Indexed: 02/06/2023] Open
Abstract
The risk of recurrence of estrogen receptor-positive breast cancer remains constant, even 20 years after diagnosis. Recurrence may be more likely in patients pre-programmed for it already in the womb, such as in the daughters born to obese mothers. Maternal obesity persistently alters offspring’s gut microbiota and impairs tumor immune responses. To investigate if the gut dysbiosis is linked to increased risk of mammary cancer recurrence in the offspring of obese rat dams, we fed adult offspring genistein which is known to have beneficial effects on the gut bacteria. However, the effects of genistein on breast cancer remain controversial. We found that genistein intake after tamoxifen response prevented the increased risk of local recurrence in the offspring of obese dams but had no effect on the control offspring. A significant increase in the abundance of inflammatory Prevotellaceae and Enterobacteriaceae, and a reduction in short-chain fatty acid producing Clostridiaceae was observed in the offspring of obese dams. Genistein supplementation reversed these changes as well as reversed increased gut metabolite N-acetylvaline levels which are linked to increased all-cause mortality. Genistein supplementation also reduced genotoxic tyramine levels, increased metabolites improving pro-resolving phase of inflammation, and reversed the elevated tumor mRNA expression of multiple immunosuppressive genes in the offspring of obese dams. If translatable to breast cancer patients, attempts to prevent breast cancer recurrences might need to focus on dietary modifications which beneficially modify the gut microbiota.
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Affiliation(s)
- Fabia de Oliveira Andrade
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266555, China;
| | - Xiyuan Zhang
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Mariana Papaleo Rosim
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Caroline Dani
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Idalia Cruz
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
| | - Thomas T. Y. Wang
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD 20705, USA;
| | - William Helferich
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, Urbana, IL 1801, USA;
| | - Robert W. Li
- United States Department of Agriculture, Agricultural Research Service, Animal Genomics and Improvement Laboratory, Beltsville, MD 20705, USA;
| | - Leena Hilakivi-Clarke
- Department of Oncology, Georgetown University, Washington, DC 20057, USA; (F.d.O.A.); (X.Z.); (M.P.R.); (C.D.); (I.C.)
- Correspondence:
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18
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Dharmawansa KS, Hoskin DW, Rupasinghe HPV. Chemopreventive Effect of Dietary Anthocyanins against Gastrointestinal Cancers: A Review of Recent Advances and Perspectives. Int J Mol Sci 2020; 21:ijms21186555. [PMID: 32911639 PMCID: PMC7554903 DOI: 10.3390/ijms21186555] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 12/14/2022] Open
Abstract
Anthocyanins are a group of dietary polyphenols, abundant mainly in fruits and their products. Dietary interventions of anthocyanins are being studied extensively related to the prevention of gastrointestinal (GI) cancer, among many other chronic disorders. This review summarizes the hereditary and non-hereditary characteristics of GI cancers, chemistry, and bioavailability of anthocyanins, and the most recent findings of anthocyanin in GI cancer prevention through modulating cellular signaling pathways. GI cancer-preventive attributes of anthocyanins are primarily due to their antioxidative, anti-inflammatory, and anti-proliferative properties, and their ability to regulate gene expression and metabolic pathways, as well as induce the apoptosis of cancer cells.
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Affiliation(s)
- K.V. Surangi Dharmawansa
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada;
| | - David W. Hoskin
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada;
- Department of Microbiology and Immunology, and Department of Surgery, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada
| | - H. P. Vasantha Rupasinghe
- Department of Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada;
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada;
- Correspondence: ; Tel.: +1-902-893-6623
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Molecular and Microbial Signatures Predictive of Prebiotic Action of Neoagarotetraose in a Dextran Sulfate Sodium-Induced Murine Colitis Model. Microorganisms 2020; 8:microorganisms8070995. [PMID: 32635315 PMCID: PMC7409226 DOI: 10.3390/microorganisms8070995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 01/16/2023] Open
Abstract
Neoagarotetraose (NT), a hydrolytic product of agar by β-agarase, is known to possess bioactive properties. However, the mechanisms via which NT alleviates intestinal inflammation remain unknown. In this study, a dextran sulfate sodium (DSS)-induced murine model was developed to evaluate the effect of NT on gut microbiome and microbial metabolism using 16S rRNA gene sequencing and untargeted metabolomics. Our data demonstrate that NT ingestion improved gut integrity and inflammation scores. NT reversed the abundance of Proteobacteria from an elevated level induced by DSS and significantly increased the abundance of Verrucomicrobia. Further, NT significantly increased the abundance of Akkermansia and Lactobacillus and concomitantly decreased that of Sutterella, which were among the important features identified by random forests analysis contributing to classification accuracy for NT supplementation. A microbial signature consisting of Adlercreutzia (denominator) and Turicibacter (numerator) predicted the NT supplementation status. Moreover, NT significantly modulated multiple gut metabolites, particularly those related to histidine, polyamine and tocopherol metabolism. Together, our findings provided novel insights into the mechanisms by which NT modulated the gut microbiome and metabolome and should facilitate the development of NT as a potent prebiotic for colitis management.
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20
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Liu F, Smith AD, Solano-Aguilar G, Wang TTY, Pham Q, Beshah E, Tang Q, Urban JF, Xue C, Li RW. Mechanistic insights into the attenuation of intestinal inflammation and modulation of the gut microbiome by krill oil using in vitro and in vivo models. MICROBIOME 2020; 8:83. [PMID: 32498703 PMCID: PMC7273679 DOI: 10.1186/s40168-020-00843-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/17/2020] [Indexed: 05/10/2023]
Abstract
BACKGROUND The anti-inflammatory property of ω-3 polyunsaturated fatty acids (PUFA) has been exploited in the management of inflammatory bowel disease (IBD) with promising results. However, it remains unclear if PUFA play a significant role in the resolution of inflammation and promotion of mucosal healing. Krill oil (KO) is a natural product rich in PUFA and the potent antioxidant, astaxanthin. In this study, we attempted to understand the mechanisms through which KO modulates the gut microbiome and metabolome using in vitro and in vivo colitis models and a multi-omics based approach. RESULTS KO significantly decreased LPS-induced IL1β and TNFα expression in human macrophages in vitro in a dose-dependent manner by regulating a broad spectrum of signaling pathways, including NF-κB and NOD-like receptor signaling, and displayed a synergistic effect with COX2 and IKK2 inhibitors in attenuating inflammatory pathways. Moreover, KO was involved in the resolution of inflammation by promoting M2 polarization and enhancing macrophage-mediated intracellular bacterial killing. Parasite-dependent intestinal mucosal damage and microbial dysbiosis induced by Trichuris suis infection in pigs were partially restored by feeding KO. KO supplementation reduced the abundance of Rickettsiales and several species of Lactobacillus, which were among the important features identified by random forests analysis contributing to classification accuracy for KO supplementation. Several microbial signatures with strong predictive power for the status of both infection and supplementation were identified. The inhibitory effect of KO on histidine metabolism was identified using untargeted metabolomics. KO supplementation reduced several key metabolites related to histamine metabolism by suppressing the expression of a gene encoding L-histidine decarboxylase in the colon mucosa and reducing histamine biosynthesis of microbial origin. Moreover, the pro-resolving properties of KO were validated using a Citrobacter rodentium-induced Th1-dependent colitis murine model. Further, microbial signatures with high prediction accuracy for colitis-related pathophysiological traits were identified in mice. CONCLUSION The findings from this study provided a mechanistic basis for optimizing microbiome-inspired alternative therapeutics in the management of IBD. The microbial signatures identified, particularly those with strong predictive accuracy for colitis phenotypes, will facilitate the development of biomarkers associated with appropriate dietary intervention to manage intestinal inflammation. Video abstract.
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Affiliation(s)
- Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Allen D Smith
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Gloria Solano-Aguilar
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Thomas T Y Wang
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Quynhchi Pham
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Ethiopia Beshah
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Qingjuan Tang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Joseph F Urban
- United States Department of Agriculture, Beltsville Human Nutrition Center, Diet, Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, China.
| | - Robert W Li
- United States Department of Agriculture, Agricultural Research Service, Animal Genomics and Improvement Laboratory, Beltsville, MD, USA.
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21
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Liu F, Xie Y, Zajac AM, Hu Y, Aroian RV, Urban JF, Li RW. Gut microbial signatures associated with moxidectin treatment efficacy of Haemonchus contortus in infected goats. Vet Microbiol 2020; 242:108607. [PMID: 32122611 DOI: 10.1016/j.vetmic.2020.108607] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/14/2020] [Accepted: 02/05/2020] [Indexed: 12/14/2022]
Abstract
Parasitic infections are associated with profound changes in the structure and function of the gut microbiome in various host-parasite systems. Here we examined the microbial composition and function in the abomasum, proximal colon and feces of Haemonchus contortus-infected goats after a partial anthelmintic drug clearance. A single-dose treatment of H. contortus-infected goats with Cydectin (moxidectin) resulted in an 83.9 % and 61.8 % reduction in fecal egg counts (EPG) and worm burden, respectively (P < 0.01), and restored abomasal pH to a normal baseline level. The treatment significantly increased the abundance of Proteobacteria, particularly that of Campylobacter, in the proximal colon. It also significantly affected several basic pathways, including bacterial secretion, butyrate metabolism, and LPS biosynthesis, and seemingly reduced the cellulolytic capacity in the colon. Several network modules displayed a strong correlation with EPG and worm burden. The Mantel test indicated a strong correlation between treatment related network topologies of the operational taxonomic units (OTU) belonging to Actinobacteria and Rikenellaceae and EPG and worm burden levels, respectively. Furthermore, microbial signatures that may better predict anthelmintic efficacy were identified. A signature or balance represented by the log ratio of the abundance of Verrucomicrobiaceae and Camplyobacteraceae had a strong correlation with EPG (r = 0.80). These novel insights into the interactions between H. contortus and gut microbiome in the caprine host and the consequence of a partial anthelmintic clearance on animal health and well-being may facilitate the design of more effective next-generation anthelmintics.
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Affiliation(s)
- Fang Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yue Xie
- Sichuan Agricultural University, College of Veterinary Medicine, Department of Parasitology, Chengdu, Sichuan, China
| | - Anne M Zajac
- Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA, USA
| | - Yan Hu
- Biology Department, Worcester State University, Worcester, MA, USA
| | | | - Joseph F Urban
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD, USA; United States Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center, Diet, Immunology, and Genomics Laboratory, Beltsville, MD, USA
| | - Robert W Li
- United States Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Animal Parasitic Diseases Laboratory, Beltsville, MD, USA.
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