1
|
Wei J, Luo J, Yang F, Dai W, Huang Z, Yan Y, Luo M. Comparative genomic and metabolomic analysis reveals the potential of a newly isolated Enterococcus faecium B6 involved in lipogenic effects. Gene 2024; 927:148668. [PMID: 38852695 DOI: 10.1016/j.gene.2024.148668] [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: 02/12/2024] [Revised: 06/01/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024]
Abstract
Evidence has indicated that Enterococcus plays a vital role in non-alcoholic fatty liver disease (NAFLD) development. However, the microbial genetic basis and metabolic potential in the disease are yet unknown. We previously isolated a bacteria Enterococcus faecium B6 (E. faecium B6) from children with NAFLD for the first time. Here, we aim to systematically investigate the potential of strain B6 in lipogenic effects. The lipogenic effects of strain B6 were explored in vitro and in vivo. The genomic and functional characterizations were investigated by whole-genome sequencing and comparative genomic analysis. Moreover, the metabolite profiles were unraveled by an untargeted metabolomic analysis. We demonstrated that strain B6 could effectively induce lipogenic effects in the liver of mice. Strain B6 contained a circular chromosome and two circular plasmids and posed various functions. Compared to the other two probiotic strains of E. faecium, strain B6 exhibited unique functions in pathways of ABC transporters, phosphotransferase system, and amino sugar and nucleotide sugar metabolism. Moreover, strain B6 produced several metabolites, mainly enriched in the protein digestion and absorption pathway. The unique potential of strain B6 in lipogenic effects was probably associated with glycolysis, fatty acid synthesis, and glutamine and choline transport. This study pioneeringly revealed the metabolic characteristics and specific detrimental traits of strain B6. The findings provided new insights into the underlying mechanisms of E. faecium in lipogenic effects, and laid essential foundations for further understanding of E. faecium-related disease.
Collapse
Affiliation(s)
- Jia Wei
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China
| | - Jiayou Luo
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China
| | - Fei Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, Hunan, China
| | - Wen Dai
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China
| | - Zhihang Huang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China
| | - Yulin Yan
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China
| | - Miyang Luo
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiangya School of Public Health, Central South University, Changsha 410078, Hunan, China.
| |
Collapse
|
2
|
Takemura S, Minamiyama Y, Ito N, Yamamoto A, Ichikawa H, Nakagawa K, Toyokuni S, Osada-Oka M, Yoshikawa T. Heat-treated and/or lysozyme-treated Enterococcus faecalis (FK-23) improves the progression of renal disease in a unilateral ischemia-reperfusion injury rat model. J Clin Biochem Nutr 2024; 75:78-89. [PMID: 39070538 PMCID: PMC11273270 DOI: 10.3164/jcbn.24-29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 03/29/2024] [Indexed: 07/30/2024] Open
Abstract
The prevalence of chronic kidney disease (CKD) is increasing owing to the elderly population. Here, we investigated the effects of heat-treated Enterococcus faecalis (FK-23) and lysozyme-treated FK-23 (LFK) on the progression of CKD in rats. A CKD model was established using male Wistar rats by subjecting them to right nephrectomy (1K), followed by ischemia and reperfusion (IR). FK-23 or LFK was fed ad libitum as a mixed diet after right nephrectomy. Animals subjected to renal ischemia-reperfusion injury (IRI) showed increased plasma creatinine and blood urea nitrogen levels. Furthermore, in the kidneys, collagen accumulation and α-smooth muscle actin, indicative of fibroblast activation and fibrosis-related gene and protein expression, increased 3 weeks after IRI. FK-23 and LFK suppressed the increase in the mRNA levels of some of these genes. The increase in oxidative stress markers, 4-hydroxy-2-nonenal, endothelial nitric oxide synthase, and nitrotyrosine in the kidney, as well as increased plasma uremic toxins after IRI, were also ameliorated by FK-23 and LFK. Metagenomic analysis of fecal samples revealed that gut microbial alteration caused by IRI was also ameliorated by LFK treatment. These results suggest that Enterococcus faecalis ingredients may improve CKD progression by suppressing oxidative stress and correcting the balance of the intestinal microflora.
Collapse
Affiliation(s)
- Shigekazu Takemura
- Department of Frontier Life-science, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Yukiko Minamiyama
- Food Hygiene and Environmental Health Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo-Hangi-cho, Sakyo-ku, Kyoto 606-8522, Japan
- Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
| | - Norihiko Ito
- Animal Medical Center, Faculty of Agriculture, Tottori University, 4-101 Koyama-Minami, Tottori 680-8553, Japan
| | - Atsushi Yamamoto
- Faculty of Environmental Studies, Tottori University, 1-1-1 Wakabadaikita, Tottori 689-1111, Japan
| | - Hiroshi Ichikawa
- Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
- Department of Medical System Protective Health and Medicine Laboratory, Graduate School of Life and Medical Sciences, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe, Kyoto 610-0394, Japan
| | - Kanako Nakagawa
- Department of Frontier Life-science, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Mayuko Osada-Oka
- Food Hygiene and Environmental Health Division of Applied Life Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo-Hangi-cho, Sakyo-ku, Kyoto 606-8522, Japan
| | - Toshikazu Yoshikawa
- Department of Frontier Life-science, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
- Louis Pasteur Center for Medical Research, 103-5 Tanakamonzen-cho, Sakyo-ku, Kyoto 606-8225, Japan
- Department of Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan
| |
Collapse
|
3
|
Liu X, Han CH, Mao T, Wu J, Ke LY, Guo YJ, Han RS, Tian ZB. Commensal Enterococcus faecalis W5 ameliorates hyperuricemia and maintains the epithelial barrier in a hyperuricemia mouse model. J Dig Dis 2024; 25:44-60. [PMID: 38126957 DOI: 10.1111/1751-2980.13249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/03/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE The intestine is responsible for approximately one-third of uric acid (UA) excretion. The effect of commensal Enterococcus faecalis (E. faecalis), one of the most colonized bacteria in the gut, on UA excretion in the intestine remains to be investigated. The aim of this study was to evaluate the effect of commensal E. faecalis on UA metabolism and gut microbiota. METHODS The 16S rRNA gene sequencing was used to examine the species of Enterococcus in mouse fecal content. E. faecalis strain was isolated from mouse feces and identified to be E. faecalis W5. The hyperuricemia (HUA) animal model was established with yeast-rich forage and 250 mg·kg-1 ·day-1 potassium oxonate. Oral administration of E. faecalis W5 was given for 20 days, serving as the Efa group. RESULTS Disrupted intestinal barrier, activated proinflammatory response and low UA excretion in the intestine were found in HUA mice. After E. faecalis W5 treatment, the gut barrier was restored and serum UA level was decreased. Additionally, fecal and intestinal UA levels were elevated, intestinal urate transporter ABCG2 and purine metabolism were upregulated. Moreover, short-chain fatty acid levels were increased, and intestinal inflammation was ameliorated. CONCLUSIONS Commensal E. faecalis W5 ameliorated HUA through reversing the impaired gut barrier, promoting intestinal UA secretion by regulating ABCG2 expression, and decreasing intestinal UA synthesis by regulating purine metabolism. The results may provide the potential for developing treatments for HUA through the intestine.
Collapse
Affiliation(s)
- Xin Liu
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Chun Hua Han
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Tao Mao
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Jie Wu
- Department of Pathology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Le Yong Ke
- Department of Plastic Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, China
| | - Ying Jie Guo
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Rong Shuang Han
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Zi Bin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| |
Collapse
|
4
|
Chen C, Chen W, Ding H, Wu P, Zhang G, Xie K, Zhang T. High-fat diet-induced gut microbiota alteration promotes lipogenesis by butyric acid/miR-204/ACSS2 axis in chickens. Poult Sci 2023; 102:102856. [PMID: 37390560 PMCID: PMC10331483 DOI: 10.1016/j.psj.2023.102856] [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: 03/24/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 07/02/2023] Open
Abstract
The gut microbiota is known to have significant involvement in the regulation of lipogenesis and adipogenesis, yet the mechanisms responsible for this relationship remain poorly understood. The current study aims to provide insight into the potential mechanisms by which the gut microbiota modulates lipogenesis in chickens. Using chickens fed with a normal-fat diet (NFD, n = 5) and high-fat diet (HFD, n = 5), we analyzed the correlation between gut microbiota, cecal metabolomics, and lipogenesis by 16s rRNA sequencing, miRNA and mRNA sequencing as well as targeted metabolomics analysis. The potential metabolite/miRNA/mRNA axis regulated by gut microbiota was identified using chickens treated with antibiotics (ABX, n = 5). The possible mechanism of gut microbiota regulating chicken lipogenesis was confirmed by fecal microbiota transplantation (FMT) from chickens fed with NFD to chickens fed with HFD (n = 5). The results showed that HFD significantly altered gut microbiota composition and enhanced chicken lipogenesis, with a significant correlation between 3. Furthermore, HFD significantly altered the hepatic miRNA expression profiles and reduced the abundance of hepatic butyric acid. Procrustes analysis indicated that the HFD-induced dysbiosis of the gut microbiota might affect the expression profiles of hepatic miRNA. Specifically, HFD-induced gut microbiota dysbiosis may reduce the abundance of butyric acid and downregulate the expression of miR-204 in the liver. Multiomics analysis identified ACSS2 as a target gene of miR-204. Gut microbiota depletion by an antibiotic cocktail (ABX) showed a gut microbiota-dependent manner in the abundance of butyric acid and the expression of miR-204/ACSS2, which have been observed to be significantly correlated. Fecal microbiota transplantation from NFD chickens into HFD chickens effectively attenuated the HFD-induced excessive lipogenesis, elevated the abundance of butyric acid and the relative expression of miR-204, and reduced the expression of ACSS2 in the liver. Mechanistically, our results showed that the gut microbiota plays an antiobesity role by regulating the butyric acid/miR-204/ACSS2 axis in chickens. This work contributed to a better understanding of the functions of gut microbiota in regulating chicken lipogenesis.
Collapse
Affiliation(s)
- Can Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Weilin Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Hao Ding
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Pengfei Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Kaizhou Xie
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China.
| |
Collapse
|
5
|
Lee JH, Woo KJ, Hong J, Han KI, Kim HS, Kim TJ. Heat-Killed Enterococcus faecalis Inhibit FL83B Hepatic Lipid Accumulation and High Fat Diet-Induced Fatty Liver Damage in Rats by Activating Lipolysis through the Regulation the AMPK Signaling Pathway. Int J Mol Sci 2023; 24:ijms24054486. [PMID: 36901915 PMCID: PMC10002555 DOI: 10.3390/ijms24054486] [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: 12/29/2022] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
Continuous consumption of high-calorie meals causes lipid accumulation in the liver and liver damage, leading to non-alcoholic fatty liver disease (NAFLD). A case study of the hepatic lipid accumulation model is needed to identify the mechanisms underlying lipid metabolism in the liver. In this study, the prevention mechanism of lipid accumulation in the liver of Enterococcus faecalis 2001 (EF-2001) was extended using FL83B cells (FL83Bs) and high-fat diet (HFD)-induced hepatic steatosis. EF-2001 treatment inhibited the oleic acid (OA) lipid accumulation in FL83B liver cells. Furthermore, we performed lipid reduction analysis to confirm the underlying mechanism of lipolysis. The results showed that EF-2001 downregulated proteins and upregulated AMP-activated protein kinase (AMPK) phosphorylation in the sterol regulatory element-binding protein 1c (SREBP-1c) and AMPK signaling pathways, respectively. The effect of EF-2001 on OA-induced hepatic lipid accumulation in FL83Bs enhanced the phosphorylation of acetyl-CoA carboxylase and reduced the levels of lipid accumulation proteins SREBP-1c and fatty acid synthase. EF-2001 treatment increased the levels of adipose triglyceride lipase and monoacylglycerol during lipase enzyme activation, which, when increased, contributed to increased liver lipolysis. In conclusion, EF-2001 inhibits OA-induced FL83B hepatic lipid accumulation and HFD-induced hepatic steatosis in rats through the AMPK signaling pathway.
Collapse
Affiliation(s)
- Jin-Ho Lee
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Keun-Jung Woo
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Joonpyo Hong
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
| | - Kwon-Il Han
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
- Research & Development Center, Bereum Co., Ltd., Wonju 26361, Republic of Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Tack-Joong Kim
- Division of Biological Science and Technology, Yonsei University, Wonju 26493, Republic of Korea
- Research & Development Center, Doctor TJ Co., Ltd., Wonju 26493, Republic of Korea
- Correspondence: ; Tel.: +82-33-760-224
| |
Collapse
|
6
|
Lotus ( Nelumbo nucifera Gaertn.) Leaf-Fermentation Supernatant Inhibits Adipogenesis in 3T3-L1 Preadipocytes and Suppresses Obesity in High-Fat Diet-Induced Obese Rats. Nutrients 2022; 14:nu14204348. [PMID: 36297031 PMCID: PMC9610561 DOI: 10.3390/nu14204348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/01/2022] [Accepted: 10/12/2022] [Indexed: 11/29/2022] Open
Abstract
The lotus (Nelumbo nucifera Gaertn.) leaf is a typical homologous ingredient of medicine and food with lipid-lowering and weight-loss effects. In the present study, lotus leaves were fermented by two probiotics, Enterococcus faecium WEFA23 and Enterococcus hirae WEHI01, and the anti-adipogenic effect of Enterococcus fermented lotus leaf supernatant (FLLS) was evaluated in 3T3-L1 preadipocytes with the aim of exploring whether its anti-obesity ability will be enhanced after fermentation with Enterococcus and to dig out the potential corresponding mechanism. The FLLS fermented by E. hirae WEHI01 (FLLS-WEHI01) was selected and further investigated for its ability to inhibit obesity in vivo in high-fat diet (HFD)-induced obese rats (male, 110 ± 5 g, 4 weeks old) due to its superior inhibitory effect on adipogenesis and lipid accumulation (inhibition rate of up to 56.17%) in 3T3-L1 cells (p = 0.008 for WEHI01-L, p < 0.001 for WEHI01-H). We found that the oral administration of both the low and high doses of FLLS-WEHI01 could achieve some effects, namely decreasing body weight (p < 0.001), epididymal fat mass, adipocyte cell size, LDL-C levels (p = 0.89, 0.02, respectively), liver TC levels (p < 0.001, p = 0.01, respectively), and TG levels (p = 0.2137, p = 0.0464, respectively), fasting blood glucose (p = 0.1585, p = 0.0009), and improved insulin resistance (p = 0.33, 0.01, respectively) in rats of the model group. Moreover, the administration of both high and low doses of FLLS-WEHI01 decreased the transcription levels of adipogenic transcription factors and corresponding genes such as Pparγ (p < 0.001), Cebpα (p < 0.001), Acc (p < 0.001), and Fas (p < 0.001) by at least three times. These results indicate that FLLS-WEHI01 can potentially be developed as an healthy, anti-obesity foodstuff.
Collapse
|
7
|
Porro M, Kundrotaite E, Mellor DD, Munialo CD. A narrative review of the functional components of human breast milk and their potential to modulate the gut microbiome, the consideration of maternal and child characteristics, and confounders of breastfeeding, and their impact on risk of obesity later in life. Nutr Rev 2022; 81:597-609. [PMID: 36048515 DOI: 10.1093/nutrit/nuac072] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Nutritional exposure and, therefore, the metabolic environment during early human development can affect health later in life. This can go beyond the nutrients consumed; there is evidence that the development and modulation of the gut microbiome during early life can affect human growth, development, and health, and the gut microbiome is associated with the risk of obesity later in life. The primary aim of this review was to evaluate existing evidence, to identify the components of human breast milk, which may modulate the gut microbiome, and to assess the impact of the gut microbiome on the risk of becoming obese later in life. This review also considers maternal and child characteristics, and confounders of breastfeeding and how they impact on the infant gut microbiome. Current evidence supports a positive association between fecal, branched short-chain fatty acids and human milk oligosaccharide diversity and a gut microbiome associated with better metabolic health. A negative correlation was found between microbiome diversity and human milk oligosaccharide evenness, which was associated with a greater fat mass and percentage of fat. The components of human breast milk, including oligosaccharides, probiotics, milk fat globule membrane, and adiponectin, were hypothesized to positively influence infant growth and body weight by modulating the microbial diversity and composition of the gut. Maternal diet, timing and duration of breast feeding, and the mode of delivery were all shown to affect the human milk microbiota. However, more experimental studies with long follow-up are required to shed light on the governing mechanisms linking breast milk components with a diverse infant microbiome and healthier body weight later in life.
Collapse
Affiliation(s)
- Margherita Porro
- School of Life Sciences, Coventry University, Coventry, United Kingdom.,Mondelēz UK R&D Limited, Bournville, Birmingham, United Kingdom
| | - Elena Kundrotaite
- School of Life Sciences, Coventry University, Coventry, United Kingdom
| | - Duane D Mellor
- Aston Medical School, Aston University, Birmingham, United Kingdom
| | - Claire D Munialo
- School of Life Sciences, Coventry University, Coventry, United Kingdom
| |
Collapse
|
8
|
Jiang L, Hong Y, Xiao P, Wang X, Zhang J, Liu E, Li H, Cai Z. The Role of Fecal Microbiota in Liver Toxicity Induced by Perfluorooctane Sulfonate in Male and Female Mice. ENVIRONMENTAL HEALTH PERSPECTIVES 2022; 130:67009. [PMID: 35759388 PMCID: PMC9236209 DOI: 10.1289/ehp10281] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 05/23/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Perfluorooctane sulfonate (PFOS) is a persistent organic pollutant that can cause hepatotoxicity. The underlying toxicological mechanism remains to be investigated. Given the critical role of fecal microbiota in liver function, it is possible that fecal microbiota may contribute to the liver toxicity induced by PFOS. OBJECTIVES We aimed to investigate the role of liver-fecal microbiota axis in modulating PFOS-induced liver injury in mice. METHODS Male and female mice were exposed to PFOS or vehicle for 14 d. In this investigation, 16S rDNA sequencing and metabolomic profiling were performed to identify the perturbed fecal microbiota and altered metabolites with PFOS exposure. In addition, antibiotic treatment, fecal microbiota transplantation, and bacterial administration were conducted to validate the causal role of fecal microbiota in mediating PFOS-induced liver injury and explore the potential underlying mechanisms. RESULTS Both male and female mice exposed to PFOS exhibited liver inflammation and steatosis, which were accompanied by fecal microbiota dysbiosis and the disturbance of amino acid metabolism in comparison with control groups. The hepatic lesions were fecal microbiota-dependent, as supported by antibiotic treatment and fecal microbiota transplantation. Mice with altered fecal microbiota in antibiotic treatment or fecal microbiota transplantation experiments exhibited altered arginine concentrations in the liver and feces. Notably, we observed sex-specific lower levels of key microbiota, including Lactobacillus, Enterococcus, and Akkermansia. Mice treated with specific bacteria showed lower arginine levels and lower expression of the phosphorylated mTOR and P70S6K, suggesting lower activity of the related pathway and mitigation of the pathological differences observed in PFOS-exposed mice. CONCLUSIONS Our study demonstrated the critical role of the fecal microbiota in PFOS-induced liver injury in mice. We also identified several critical bacteria that could protect against liver injury induced by PFOS in male and female mice. Our present research provided novel insights into the mechanism of PFOS-induced liver injury in mice. https://doi.org/10.1289/EHP10281.
Collapse
Affiliation(s)
- Lilong Jiang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
- Hong Kong Baptist University Institute for Research and Continuing Education, Shenzhen, China
| | - Yanjun Hong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
- Hong Kong Baptist University Institute for Research and Continuing Education, Shenzhen, China
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China
| | - Pingting Xiao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Xiaoxiao Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| | - Jinghui Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| | - Ehu Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Huijun Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China
| |
Collapse
|
9
|
Fan M, Choi YJ, Wedamulla NE, Tang Y, Han KI, Hwang JY, Kim EK. Heat-Killed Enterococcus faecalis EF-2001 Attenuate Lipid Accumulation in Diet-Induced Obese (DIO) Mice by Activating AMPK Signaling in Liver. Foods 2022; 11:575. [PMID: 35206052 PMCID: PMC8870772 DOI: 10.3390/foods11040575] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023] Open
Abstract
To explore the inhibitory mechanism of heat-killed Enterococcus faecalis, EF-2001 on hepatic lipid deposition, a diet-induced obese (DIO) animal model was established by high-fat diet (HFD). The DIO C57BL/6 mice were divided into four groups: the normal group without HFD (ND, n = 8), obesity group (HFD, n = 8), experimental group (HFD + EF-2001, 200 mg/kg, n = 8), and positive control group (HFD + Orlistat, 60 mg/kg, n = 8). After 4 weeks, liver and adipose tissue were fixed in 10% paraformaldehyde, followed by embedding in paraffin for tissue sectioning. The differences in body mass, body fat ratio, fatty cell area, and lipid profiling of the liver (TC, LDL, and HDL) were also determined. Moreover, Western blot was performed to analyze the expression of lipid accumulation-related proteins, including AMPK, PPARγ, SREBP-1, ACC, and FAS. Compared with the HFD group, the HFD + EF-2001 group exhibited decreased fat mass, liver index, adipocyte area, TC, and LDL, and an increased level of HDL. The results of liver hematoxylin and eosin (H&E), and oil red O staining showed that the mice in each intervention group were improved on hepatic lipid accumulation, and the mice in the HFD + EF-2001 group were the most similar to those in the normal group when compared with the HFD group. From the Western blot results, we proved that EF-2001 activated the AMPK signaling pathway. EF-2001 significantly upregulated the expressions of p-AMPK and p-ACC and downregulated PPARγ, SREBP-1, and FAS in murine liver. Taken together, these results suggest that EF-2001 decrease lipid accumulation in the DIO model mice through the AMPK pathway and ameliorate liver damage by HFD.
Collapse
Affiliation(s)
- Meiqi Fan
- Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University, Chungju 27478, Korea;
| | - Young-Jin Choi
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Korea; (Y.-J.C.); (N.E.W.)
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Korea
| | - Nishala Erandi Wedamulla
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Korea; (Y.-J.C.); (N.E.W.)
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Korea
- Department of Export Agriculture, Faculty of Animal Science and Export Agriculture, Uva Wellassa University, Badulla 90000, Sri Lanka
| | - Yujiao Tang
- School of Bio-Science and Food Engineering, Changchun University of Science and Technology, Changchun 130600, China;
| | | | - Ji-Young Hwang
- Department of Food Science & Technology, Dong-Eui University, Busan 47340, Korea;
| | - Eun-Kyung Kim
- Department of Food Science and Nutrition, College of Health Science, Dong-A University, Busan 49315, Korea; (Y.-J.C.); (N.E.W.)
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Dong-A University, Busan 49315, Korea
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Korea
- Department of Export Agriculture, Faculty of Animal Science and Export Agriculture, Uva Wellassa University, Badulla 90000, Sri Lanka
- Center for Food & Bio Innovation, Dong-A University, Busan 49315, Korea
| |
Collapse
|
10
|
Wang B, Wang L, Wang H, Dai H, Lu X, Lee YK, Gu Z, Zhao J, Zhang H, Chen W, Wang G. Targeting the Gut Microbiota for Remediating Obesity and Related Metabolic Disorders. J Nutr 2021; 151:1703-1716. [PMID: 33982127 DOI: 10.1093/jn/nxab103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/19/2021] [Accepted: 03/19/2021] [Indexed: 12/19/2022] Open
Abstract
The rate of obesity is rapidly increasing and has become a health and economic burden worldwide. As recent studies have revealed that the gut microbiota is closely linked to obesity, researchers have used various approaches to modulate the gut microbiota to treat the condition. Dietary composition and energy intake strongly affect the composition and function of the gut microbiota. Intestinal microbial changes alter the composition of bile acids and fatty acids and regulate bacterial lipopolysaccharide production, all of which influence energy metabolism and immunity. Evidence also suggests that remodeling the gut microbiota through intake of probiotics, prebiotics, fermented foods, and dietary plants, as well as by fecal microbiota transplantation, are feasible methods to remediate obesity.
Collapse
Affiliation(s)
- Botao Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Linlin Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China
| | - Haojue Wang
- The Department of Obstetrics and Gynecology, Wuxi Xishan People's Hospital, Wuxi, P. R. China
| | - Hongyan Dai
- The Department of Obstetrics and Gynecology, Wuxi Xishan People's Hospital, Wuxi, P. R. China
| | - Xianyi Lu
- The Department of Obstetrics and Gynecology, Wuxi Xishan People's Hospital, Wuxi, P. R. China
| | - Yuan-Kun Lee
- Department of Microbiology & Immunology, National University of Singapore, Singapore, Singapore
| | - Zhennan Gu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, P. R. China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, P. R. China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, P. R. China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, P. R. China.,Wuxi Translational Medicine Research Center and Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, P. R. China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, P. R. China
| | - Gang Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,School of Food Science and Technology, Jiangnan University, Wuxi, P. R. China.,International Joint Research Laboratory for Probiotics, Jiangnan University, Wuxi, P. R. China.,(Yangzhou) Institute of Food Biotechnology, Jiangnan University, Yangzhou, P. R. China
| |
Collapse
|
11
|
Shoji M, Sasaki Y, Abe Y, Nishise S, Yaoita T, Yagi M, Mizumoto N, Kon T, Onozato Y, Sakai T, Umehara M, Ito M, Koseki A, Murakami R, Miyano Y, Sato H, Ueno Y. Characteristics of the gut microbiome profile in obese patients with colorectal cancer. JGH OPEN 2021; 5:498-507. [PMID: 33860101 PMCID: PMC8035457 DOI: 10.1002/jgh3.12529] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 12/24/2022]
Abstract
Background and Aim Obesity affects the gut microbiome, which in turn increases the risk for colorectal cancer. Several studies have shown the mechanisms by which some bacteria may influence the development of colorectal cancer; however, gut microbiome characteristics in obese patients with colorectal cancer remain unclear. Therefore, this study evaluated their gut microbiome profile and its relationship with metabolic markers. Methods The study assessed fecal samples from 36 consecutive patients with colorectal cancer and 38 controls without colorectal cancer. To identify microbiotic variations between patients with colorectal cancer and controls, as well as between nonobese and obese individuals, 16S rRNA gene amplicon sequencing was performed. Results Principal coordinate analysis showed significant differences in the overall structure of the microbiome among the study groups. The α‐diversity, assessed by the Chao1 index or Shannon index, was higher in patients with colorectal cancer versus controls. The relative abundance of the genera Enterococcus, Capnocytophaga, and Polaribacter was significantly altered in obese patients with colorectal cancer, whose serum low‐density lipoprotein concentrations were positively correlated with the abundance of the genus Enterococcus; among the most abundant species was Enterococcus faecalis, observed at lower levels in obese versus nonobese patients. Conclusions This study demonstrated several compositional alterations of the gut microbiome in patients with colorectal cancer and showed that a reduced presence of E. faecalis may be associated with obesity‐related colorectal cancer development. The gut microbiome may provide novel insights into the potential mechanisms in obesity‐related colorectal carcinogenesis.
Collapse
Affiliation(s)
- Masakuni Shoji
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Yu Sasaki
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Yasuhiko Abe
- Division of Endoscopy Yamagata University Hospital Yamagata Japan
| | | | - Takao Yaoita
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Makoto Yagi
- Division of Endoscopy Yamagata University Hospital Yamagata Japan
| | - Naoko Mizumoto
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Takashi Kon
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Yusuke Onozato
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Takayuki Sakai
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Matsuki Umehara
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Minami Ito
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Ayumi Koseki
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| | - Ryoko Murakami
- Genomic Information Analysis Unit, Department of Genomic Cohort Research, Faculty of Medicine Yamagata University Yamagata Japan
| | - Yuki Miyano
- Genomic Information Analysis Unit, Department of Genomic Cohort Research, Faculty of Medicine Yamagata University Yamagata Japan
| | - Hidenori Sato
- Genomic Information Analysis Unit, Department of Genomic Cohort Research, Faculty of Medicine Yamagata University Yamagata Japan
| | - Yoshiyuki Ueno
- Department of Gastroenterology, Faculty of Medicine Yamagata University Yamagata Japan
| |
Collapse
|
12
|
Huang J, Huang J, Yin T, Lv H, Zhang P, Li H. Enterococcus faecium R0026 Combined with Bacillus subtilis R0179 Prevent Obesity-Associated Hyperlipidemia and Modulate Gut Microbiota in C57BL/6 Mice. J Microbiol Biotechnol 2021; 31:181-188. [PMID: 33144552 PMCID: PMC9706029 DOI: 10.4014/jmb.2009.09005] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/13/2020] [Accepted: 10/18/2020] [Indexed: 01/09/2023]
Abstract
Bacillus subtilis and Enterococcus faecium are commonly used probiotics. This study aimed to identify the effect of live combined Bacillus subtilis R0179 and Enterococcus faecium R0026 (LCBE) on obesityassociated hyperlipidemia and gut microbiota in C57BL/6 mice. Forty male C57BL/6 mice were divided into four groups: normal group (N group), model group (M group), low-dose group (L group), and high-dose group (H group). Mice were gavaged with LCBE at 0.023 g/mice/day (L group) or 0.23 g/mice/day (H group) and fed with a high-fat diet for 8 weeks. In vitro E. faecium R0026 showed an ability to lower the low-concentration of cholesterol by 46%, and the ability to lower the highconcentration of cholesterol by 58%. LCBE significantly reduced the body weight gain, Lee index, brown fat index and body mass index of mice on a high-fat diet. Moreover, LCBE markedly improved serum lipids (including serum triglyceride, total cholesterol, low-density lipoprotein and highdensity lipoprotein) while also significantly reducing liver total cholesterol. Serum lipopolysaccharide and total bile acid in L and H groups decreased significantly compared with M group. PCR-DGGE analysis showed that the composition of gut microbiota in the treatment groups was improved. Akkermansia muciniphila was found in H group. The PCA result indicated a similar gut microbiota structure between LCBE treatment groups and normal group while the number of bands and Shannon diversity index increased significantly in the LCBE treatment groups. Finally, qPCR showed Bifidobacterium spp. increased significantly in H group compared with M group, LCBE alleviated liver steatosis and improved brown adipose tissue index.
Collapse
Affiliation(s)
- Jinli Huang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian 6044, P.R. China
| | - Juan Huang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian 6044, P.R. China
| | - Tianyi Yin
- First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
| | - Huiyun Lv
- First Affiliated Hospital of Dalian Medical University, Dalian, P.R. China
| | - Pengyu Zhang
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian 6044, P.R. China
| | - Huajun Li
- Department of Microecology, College of Basic Medical Sciences, Dalian Medical University, Dalian 6044, P.R. China,Corresponding author Phone: +86-411 86110305 Fax: +86-411-86110282 E-mail:
| |
Collapse
|
13
|
Laursen MF, Larsson MW, Lind MV, Larnkjær A, Mølgaard C, Michaelsen KF, Bahl MI, Licht TR. Intestinal Enterococcus abundance correlates inversely with excessive weight gain and increased plasma leptin in breastfed infants. FEMS Microbiol Ecol 2020; 96:5818758. [PMID: 32275305 PMCID: PMC7183236 DOI: 10.1093/femsec/fiaa066] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/03/2020] [Indexed: 01/04/2023] Open
Abstract
Epidemiological evidence indicates that breastfeeding provides protection against development of overweight/obesity. Nonetheless, a small subgroup of infants undergo excessive weight gain during exclusive breastfeeding, a phenomenon that remains unexplained. Breast milk contains both gut-seeding microbes and substrates for microbial growth in the gut of infants, and a large body of evidence suggests a role for gut microbes in host metabolism. Based on the recently established SKOT III cohort, we investigated the role of the infant gut microbiota in excessive infant weight gain during breastfeeding, including 30 exclusively breastfed infants, 13 of which exhibited excessive weight gain and 17 controls which exhibited normal weight gain during infancy. Infants undergoing excessive weight gain during breastfeeding had a reduced abundance of gut Enterococcus as compared with that observed in the controls. Within the complete cohort, Enterococcus abundance correlated inversely with age/gender-adjusted body-weight, body-mass index and waist circumference, body fat and levels of plasma leptin. The reduced abundance of Enterococcus in infants with excessive weight gain was coupled to a lower content of Enterococcus in breast milk samples of their mothers than seen for mothers in the control group. Together, this suggests that lack of breast milk-derived gut-seeding Enterococci may contribute to excessive weight gain in breastfed infants.
Collapse
Affiliation(s)
- Martin Frederik Laursen
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
| | - Melanie Wange Larsson
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark.,Department of Nursing and Nutrition, University College Copenhagen, Humletorvet 3, 1799 Copenhagen V, Denmark
| | - Mads Vendelbo Lind
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Anni Larnkjær
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Christian Mølgaard
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Kim F Michaelsen
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Nørre Allé 51, 2200 Copenhagen N, Denmark
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
| | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kemitorvet 202, 2800 Kgs Lyngby, Denmark
| |
Collapse
|
14
|
Quan LH, Zhang C, Dong M, Jiang J, Xu H, Yan C, Liu X, Zhou H, Zhang H, Chen L, Zhong FL, Luo ZB, Lam SM, Shui G, Li D, Jin W. Myristoleic acid produced by enterococci reduces obesity through brown adipose tissue activation. Gut 2020; 69:1239-1247. [PMID: 31744910 DOI: 10.1136/gutjnl-2019-319114] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 10/21/2019] [Accepted: 11/06/2019] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Dietary fibre has beneficial effects on energy metabolism, and the majority of studies have focused on short-chain fatty acids produced by gut microbiota. Ginseng has been reported to aid in body weight management, however, its mechanism of action is not yet clear. In this study, we focused on the potential modulating effect of ginseng on gut microbiota, aiming to identify specific strains and their metabolites, especially long-chain fatty acids (LCFA), which mediate the anti-obesity effects of ginseng. DESIGN Db/db mice were gavaged with ginseng extract (GE) and the effects of GE on gut microbiota were evaluated using 16S rDNA-based high throughput sequencing. To confirm the candidate fatty acids, untargeted metabolomics analyses of the serum and medium samples were performed. RESULTS We demonstrated that GE can induce Enterococcus faecalis, which can produce an unsaturated LCFA, myristoleic acid (MA). Our results indicate that E. faecalis and its metabolite MA can reduce adiposity by brown adipose tissue (BAT) activation and beige fat formation. In addition, the gene of E. faecalis encoding Acyl-CoA thioesterases (ACOTs) exhibited the biosynthetic potential to synthesise MA, as knockdown (KD) of the ACOT gene by CRISPR-dCas9 significantly reduced MA production. Furthermore, exogenous treatment with KD E. faecalis could not reproduce the beneficial effects of wild type E. faecalis, which work by augmenting the circulating MA levels. CONCLUSIONS Our results demonstrated that the gut microbiota-LCFA-BAT axis plays an important role in host metabolism, which may provide a strategic advantage for the next generation of anti-obesity drug development.
Collapse
Affiliation(s)
- Lin-Hu Quan
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular, Ministry of Education, Agricultural College, Yanbian University, Yanji, China
| | - Chuanhai Zhang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Meng Dong
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China
| | - Jun Jiang
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular, Ministry of Education, Agricultural College, Yanbian University, Yanji, China
| | - Hongde Xu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Chunlong Yan
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular, Ministry of Education, Agricultural College, Yanbian University, Yanji, China
| | - Xiaomeng Liu
- Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, Henan, China
| | - Huiqiao Zhou
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China
| | - Hanlin Zhang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China
| | - Li Chen
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China
| | - Fei-Liang Zhong
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular, Ministry of Education, Agricultural College, Yanbian University, Yanji, China
| | - Zhao-Bo Luo
- Jilin Provincial Key Laboratory of Transgenic Animal and Embryo Engineering, Yanbian University, Yanji, China
| | - Sin-Man Lam
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Guanghou Shui
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Donghao Li
- Key Laboratory of Natural Resource of the Changbai Mountain and Functional Molecular, Ministry of Education, Agricultural College, Yanbian University, Yanji, China
| | - Wanzhu Jin
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China .,Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
15
|
Osumi T, Shimada T, Sakaguchi M, Tsujimoto H. A double-blind, placebo-controlled evaluation of orally administered heat-killed Enterococcus faecalis FK-23 preparation in atopic dogs. Vet Dermatol 2019; 30:127-e36. [PMID: 30663154 DOI: 10.1111/vde.12725] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/03/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Gastrointestinal microbiome modulation is reported to be an effective therapy to reduce the clinical signs of canine atopic dermatitis (cAD). The killed strain of Enterococcus faecalis FK-23 has been shown to reduce allergic responses in mice and people. HYPOTHESIS/OBJECTIVE The aim of this multicentre, double-blinded, placebo-controlled study was to evaluate the safety and efficacy of an orally administered heat-killed E. faecalis FK-23 preparation (FK-23p) for the control of cAD. ANIMALS Thirty-nine client-owned dogs with clinical signs of nonseasonal cAD were enrolled by 10 veterinarians at 15 hospitals. METHODS AND MATERIALS Dogs were randomized to either FK-23p at a dose of ≥100 mg/kg/day or placebo. Owner-assessed pruritus Visual Analog Scale (pVAS), clinician-assessed Canine Atopic Dermatitis Extent and Severity Index, 4th iteration (CADESI-4) and daily medication scoring (DMS) were evaluated on days 0, 28, 56 and 84. Owners and clinicians were interviewed about the overall response to treatment (RTT), after the study. RESULTS The CADESI-4 significantly decreased in the FK-23p group compared to the placebo group, by Day 84 (P = 0.035; Wilcoxon-Mann-Whitney U-test). There was no significant difference in pVAS and DMS between the groups. Owners and clinicians reported significantly better RTT in the FK-23p group than the placebo group (P = 0.043 and 0.002, respectively; Wilcoxon-Mann-Whitney U-test). There were no adverse events associated with FK-23p. CONCLUSIONS AND CLINICAL IMPORTANCE Oral administration of FK-23p provided a small, but measurable benefit when used as an adjunct treatment, in reducing clinical signs of atopic dogs.
Collapse
Affiliation(s)
- Takafumi Osumi
- Laboratory of Veterinary Internal Medicine, Division of Animal Life Science, Graduate School, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan
| | - Takashi Shimada
- NichiNichi Pharmaceutical Co., Ltd., 239-1 Tominaga, Iga, Mie, 518-1417, Japan
| | - Masahiro Sakaguchi
- Department of Veterinary Microbiology I, School of Veterinary Medicine, Azabu University, 1-17-71, Fuchinobe, Chuou-ku, Sagamihara, Kanagawa, 252-5201, Japan
| | - Hajime Tsujimoto
- Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| |
Collapse
|
16
|
Beneficial effects of Enterococcus faecalis in hypercholesterolemic mice on cholesterol transportation and gut microbiota. Appl Microbiol Biotechnol 2019; 103:3181-3191. [DOI: 10.1007/s00253-019-09681-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/31/2019] [Accepted: 02/02/2019] [Indexed: 01/22/2023]
|
17
|
McGavigan AK, Garibay D, Henseler ZM, Chen J, Bettaieb A, Haj FG, Ley RE, Chouinard ML, Cummings BP. TGR5 contributes to glucoregulatory improvements after vertical sleeve gastrectomy in mice. Gut 2017; 66:226-234. [PMID: 26511794 PMCID: PMC5512436 DOI: 10.1136/gutjnl-2015-309871] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 09/29/2015] [Accepted: 09/30/2015] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Vertical sleeve gastrectomy (VSG) produces high rates of type 2 diabetes remission; however, the mechanisms responsible remain incompletely defined. VSG increases circulating bile acid concentrations and bile acid signalling through TGR5 improves glucose homeostasis. Therefore, we investigated the role of TGR5 signalling in mediating the glucoregulatory benefits of VSG. DESIGN VSG or sham surgery was performed in high-fat-fed male Tgr5+/+ (wild type) and Tgr5-/- (knockout) littermates. Sham-operated mice were fed ad libitum or food restricted to match their body weight to VSG-operated mice. Body weight, food intake, energy expenditure, insulin signalling and circulating bile acid profiles were measured and oral glucose tolerance testing, islet immunohistochemistry and gut microbial profiling were performed. RESULTS VSG decreased food intake and body weight, increased energy expenditure and circulating bile acid concentrations, improved fasting glycaemia, glucose tolerance and glucose-stimulated insulin secretion, enhanced nutrient-stimulated glucagon-like peptide 1 secretion and produced favourable shifts in gut microbial populations in both genotypes. However, the body weight-independent improvements in fasting glycaemia, glucose tolerance, hepatic insulin signalling, hepatic inflammation and islet morphology after VSG were attenuated in Tgr5-/- relative to Tgr5+/+ mice. Furthermore, VSG produced metabolically favourable alterations in circulating bile acid profiles that were blunted in Tgr5-/- relative to Tgr5+/+ mice. TGR5-dependent regulation of hepatic Cyp8b1 expression may have contributed to TGR5-mediated shifts in the circulating bile acid pool after VSG. CONCLUSIONS These results suggest that TGR5 contributes to the glucoregulatory benefits of VSG surgery by promoting metabolically favourable shifts in the circulating bile acid pool.
Collapse
Affiliation(s)
- Anne K McGavigan
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Darline Garibay
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Zachariah M Henseler
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA
- Department of Microbiology, Cornell University, Ithaca, New York, USA
| | - Jack Chen
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| | - Ahmed Bettaieb
- Department of Nutrition, University of California, Davis, Davis, California, USA
| | - Fawaz G Haj
- Department of Nutrition, University of California, Davis, Davis, California, USA
| | - Ruth E Ley
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, New York, USA
- Department of Microbiology, Cornell University, Ithaca, New York, USA
| | - Michael L Chouinard
- Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana, USA
| | - Bethany P Cummings
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
| |
Collapse
|
18
|
Oo KM, Lwin AA, Kyaw YY, Tun WM, Fukada K, Goshima A, Shimada T, Okada S. Safety and long-term effect of the probiotic FK-23 in patients with hepatitis C virus infection. BIOSCIENCE OF MICROBIOTA FOOD AND HEALTH 2016; 35:123-8. [PMID: 27508113 PMCID: PMC4965516 DOI: 10.12938/bmfh.2015-024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 04/12/2016] [Indexed: 12/21/2022]
Abstract
A clinical trial was conducted on 39 adult HCV-positive subjects to determine the safety and long-term effect
of the probiotic FK-23 (heat-treated Enterococcus faecalis strain FK-23). Asymptomatic
anti-HCV positive adults who fulfilled the selection criteria and gave voluntary consent were recruited from
attendees of the Hepatitis Carrier Clinic, Department of Medical Research (Lower Myanmar). Each subject was
given 2,700 mg of FK-23 per day by oral route. Blood samples were taken at enrollment and every 3 months and
tested for alanine aminotransferase (ALT) and aspartate transaminase (AST). Viral load, urea, total protein,
hemoglobin and platelet count were determined every 6 months. Among the subjects, 23 completed 36 months, 31
completed 24 months, 35 completed 12 months and 37 completed 6 months of probiotic therapy. Significant
decreases in mean ALT levels were observed at 3 months (34. 9 ± 15.1 IU/l) as compared with the initial level
(64.8 ± 17.5 IU/l) and persisted up to 36 months (43.7 ± 25.2 IU/l). Decrease of AST was detected after 9
months (46.2 ± 21.7 IU/l) of probiotic therapy as compared with the initial level (64.3 ± 28.7 IU/l). FK-23
was safe based on the stable levels of biochemical and hematological parameters and the absence of untoward
side effects. The FK-23 preparation was well tolerated and accepted by the subjects.
Collapse
Affiliation(s)
- Khin May Oo
- Department of Medical Research (Lower Myanmar), No. 5 Ziwaka Road, 11191 Yangon, Republic of the Union of Myanmar
| | - Aye Aye Lwin
- Department of Medical Research (Lower Myanmar), No. 5 Ziwaka Road, 11191 Yangon, Republic of the Union of Myanmar
| | - Yi Yi Kyaw
- Department of Medical Research (Lower Myanmar), No. 5 Ziwaka Road, 11191 Yangon, Republic of the Union of Myanmar
| | - Win Maw Tun
- Department of Medical Research (Lower Myanmar), No. 5 Ziwaka Road, 11191 Yangon, Republic of the Union of Myanmar
| | - Kazutake Fukada
- Central Research Laboratories, Nichinichi Pharmaceutical Corporation Ltd., 239-1 Tominaga, Iga City, Mie 518-1417, Japan
| | - Akiko Goshima
- Central Research Laboratories, Nichinichi Pharmaceutical Corporation Ltd., 239-1 Tominaga, Iga City, Mie 518-1417, Japan
| | - Takashi Shimada
- Central Research Laboratories, Nichinichi Pharmaceutical Corporation Ltd., 239-1 Tominaga, Iga City, Mie 518-1417, Japan; Department of Gastrointestinal Immunology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan
| | - Shigeru Okada
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-6-7 Bancho, Kita-ku, Okayama 700-0811, Japan
| |
Collapse
|
19
|
Birth mode-dependent association between pre-pregnancy maternal weight status and the neonatal intestinal microbiome. Sci Rep 2016; 6:23133. [PMID: 27033998 PMCID: PMC4817027 DOI: 10.1038/srep23133] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/25/2016] [Indexed: 02/07/2023] Open
Abstract
The intestinal microbiome is a unique ecosystem that influences metabolism in humans. Experimental evidence indicates that intestinal microbiota can transfer an obese phenotype from humans to mice. Since mothers transmit intestinal microbiota to their offspring during labor, we hypothesized that among vaginal deliveries, maternal body mass index is associated with neonatal gut microbiota composition. We report the association of maternal pre-pregnancy body mass index on stool microbiota from 74 neonates, 18 born vaginally (5 to overweight or obese mothers) and 56 by elective C-section (26 to overweight or obese mothers). Compared to neonates delivered vaginally to normal weight mothers, neonates born to overweight or obese mothers had a distinct gut microbiota community structure (weighted UniFrac distance PERMANOVA, p < 0.001), enriched in Bacteroides and depleted in Enterococcus, Acinetobacter, Pseudomonas, and Hydrogenophilus. We show that these microbial signatures are predicted to result in functional differences in metabolic signaling and energy regulation. In contrast, among elective Cesarean deliveries, maternal body mass index was not associated with neonatal gut microbiota community structure (weighted UniFrac distance PERMANOVA, p = 0.628). Our findings indicate that excess maternal pre-pregnancy weight is associated with differences in neonatal acquisition of microbiota during vaginal delivery, but not Cesarean delivery. These differences may translate to altered maintenance of metabolic health in the offspring.
Collapse
|
20
|
Higashimura Y, Naito Y, Takagi T, Uchiyama K, Mizushima K, Ushiroda C, Ohnogi H, Kudo Y, Yasui M, Inui S, Hisada T, Honda A, Matsuzaki Y, Yoshikawa T. Protective effect of agaro-oligosaccharides on gut dysbiosis and colon tumorigenesis in high-fat diet-fed mice. Am J Physiol Gastrointest Liver Physiol 2016; 310:G367-75. [PMID: 26767984 DOI: 10.1152/ajpgi.00324.2015] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/15/2015] [Indexed: 01/31/2023]
Abstract
High-fat diet (HFD)-induced alteration in the gut microbial composition, known as dysbiosis, is increasingly recognized as a major risk factor for various diseases, including colon cancer. This report describes a comprehensive investigation of the effect of agaro-oligosaccharides (AGO) on HFD-induced gut dysbiosis, including alterations in short-chain fatty acid contents and bile acid metabolism in mice. C57BL/6N mice were fed a control diet or HFD, with or without AGO. Terminal restriction fragment-length polymorphism (T-RFLP) analysis produced their fecal microbiota profiles. Profiles of cecal organic acids and serum bile acids were determined, respectively, using HPLC and liquid chromatography-tandem mass spectrometry systems. T-RFLP analyses showed that an HFD changed the gut microbiota significantly. Changes in the microbiota composition induced by an HFD were characterized by a decrease in the order Lactobacillales and by an increase in the Clostridium subcluster XIVa. These changes of the microbiota community generated by HFD treatment were suppressed by AGO supplementation. As supported by the data of the proportion of Lactobacillales order, the concentration of lactic acid increased in the HFD + AGO group. Data from the serum bile acid profile showed that the level of deoxycholic acid, a carcinogenic secondary bile acid produced by gut bacteria, was increased in HFD-receiving mice. The upregulation tended to be suppressed by AGO supplementation. Finally, results show that AGO supplementation suppressed the azoxymethane-induced generation of aberrant crypt foci in the colon derived from HFD-treated mice. Our results suggest that oral intake of AGO prevents HFD-induced gut dysbiosis, thereby inhibiting colon carcinogenesis.
Collapse
Affiliation(s)
- Yasuki Higashimura
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan; Department of Food Factor Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Naito
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan;
| | - Tomohisa Takagi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuhiko Uchiyama
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Katsura Mizushima
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Chihiro Ushiroda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiromu Ohnogi
- Department of Food Factor Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan; Takara Bio Incorporated, Otsu, Shiga, Japan
| | - Yoko Kudo
- Takara Bio Incorporated, Otsu, Shiga, Japan
| | | | - Seina Inui
- Takara Bio Incorporated, Otsu, Shiga, Japan
| | | | - Akira Honda
- Gastroenterology, Tokyo Medical University Ibaraki Medical Center, Ami, Ibaraki, Japan
| | - Yasushi Matsuzaki
- Gastroenterology, Tokyo Medical University Ibaraki Medical Center, Ami, Ibaraki, Japan
| | - Toshikazu Yoshikawa
- Department of Food Factor Science, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| |
Collapse
|