1
|
Zimmerman E, Sturrock A, Reilly CA, Burrell-Gerbers KL, Warren K, Mir-Kasimov M, Zhang MA, Pierce MS, Helms MN, Paine R. Aryl Hydrocarbon Receptor Activation in Pulmonary Alveolar Epithelial Cells Limits Inflammation and Preserves Lung Epithelial Cell Integrity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:600-611. [PMID: 39033086 PMCID: PMC11335325 DOI: 10.4049/jimmunol.2300325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/17/2024] [Indexed: 07/23/2024]
Abstract
The aryl hydrocarbon receptor (AHR) is a receptor/transcription factor widely expressed in the lung. The physiological roles of AHR expressed in the alveolar epithelium remain unclear. In this study, we tested the hypothesis that alveolar epithelial AHR activity plays an important role in modulating inflammatory responses and maintaining alveolar integrity during lung injury and repair. AHR is expressed in alveolar epithelial cells (AECs) and is active. AHR activation with the endogenous AHR ligand, FICZ (5,11-dihydroindolo[3,2-b] carbazole-6-carboxaldehyde), significantly suppressed inflammatory cytokine expression in response to inflammatory stimuli in primary murine AECs and in the MLE-15 epithelial cell line. In an LPS model of acute lung injury in mice, coadministration of FICZ with LPS suppressed protein leak, reduced neutrophil accumulation in BAL fluid, and suppressed inflammatory cytokine expression in lung tissue and BAL fluid. Relevant to healing following inflammatory injury, AHR activation suppressed TGF-β-induced expression of genes associated with epithelial-mesenchymal transition. Knockdown of AHR in primary AECs with shRNA or in CRISPR-Cas-9-induced MLE-15 cells resulted in upregulation of α-smooth muscle actin (αSma), Col1a1, and Fn1 and reduced expression of epithelial genes Col4a1 and Sdc1. MLE-15 clones lacking AHR demonstrated accelerated wound closure in a scratch model. AHR activation with FICZ enhanced barrier function (transepithelial electrical resistance) in primary murine AECs and limited decline of transepithelial electrical resistance following inflammatory injury. AHR activation in AECs preserves alveolar integrity by modulating inflammatory cytokine expression while enhancing barrier function and limiting stress-induced expression of mesenchymal genes.
Collapse
Affiliation(s)
- Elizabeth Zimmerman
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
| | - Anne Sturrock
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
| | - Christopher A. Reilly
- Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT
| | | | - Kristi Warren
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
| | - Mustafa Mir-Kasimov
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
| | - Mingyang A. Zhang
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
| | - Megan S. Pierce
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
| | - My N. Helms
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
| | - Robert Paine
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, University of Utah Spencer Fox Eccles School of Medicine, Salt Lake City, UT
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, UT
| |
Collapse
|
2
|
Wang R, Huang G, Li S, Huang H, Zhu G, Wang L, Yang J, Yang S, Jiang Z, Zhang W. Blueberry extract for the treatment of ischaemic stroke through regulating the gut microbiota and kynurenine metabolism. Phytother Res 2024. [PMID: 39140343 DOI: 10.1002/ptr.8300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 05/04/2024] [Accepted: 07/16/2024] [Indexed: 08/15/2024]
Abstract
Although the gut microbiota and kynurenine (KYN) metabolism have significant protective effects against ischaemic stroke (IS), the exact mechanism has yet to be fully elucidated. Combined serum metabolomics and 16S rRNA gene sequencing were used to reveal the differences between the gut microbiota and metabolites in rats treated with or without blueberry extract. Faecal microbiota transplantation (FMT) was employed to validate the protective role of the gut microbiota in IS. Furthermore, the interaction between Prevotella and IS was also confirmed in patients. Rats with IS experienced neurological impairments accompanied by an impaired intestinal barrier and disturbed intestinal flora, which further contributed to heightened inflammatory responses. Furthermore, Prevotella played a critical role in IS pathophysiology, and a positive correlation between Prevotella and KYN was detected. The role of KYN metabolism in IS was further demonstrated by the finding that IDO was significantly upregulated and that the use of the IDO inhibitor, attenuated KYN metabolic pathway activity and ameliorated neurological damage in rats with IS. Prevotella intervention also significantly improved stroke symptoms and decreasing KYN levels in rats with IS. FMT showed that the beneficial effects of blueberry extract on IS involve gut bacteria, especially Prevotella, which were confirmed by microbiological analyses conducted on IS patients. Moreover, blueberry extract led to significant changes in kynurenic acid levels and tryptophan and IDO levels through interactions with Prevotella. Our study demonstrates for the first time that blueberry extract could modulate "intestinal microecology-KYN metabolism" to improve IS.
Collapse
Affiliation(s)
- Raoqiong Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, People's Republic of China
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Guoxin Huang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, People's Republic of China
| | - Shuangyang Li
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hanlin Huang
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Guoyuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, People's Republic of China
| | - Liang Wang
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Jinrui Yang
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Sijin Yang
- National Traditional Chinese Medicine Clinical Research Base of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Zhihong Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, People's Republic of China
| | - Wei Zhang
- State Key Laboratory of Quality Research in Chinese Medicines, Guangdong-Hong Kong-Macao Joint Laboratory of Respiratory Infectious Disease, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, People's Republic of China
| |
Collapse
|
3
|
Wang A, Guan C, Wang T, Mu G, Tuo Y. Lactobacillus-derived indole derivatives ameliorate intestinal barrier damage in rat pups with complementary food administration. Food Funct 2024. [PMID: 39105499 DOI: 10.1039/d4fo02230k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
The consumption of complementary foods can bring about diarrhea and intestinal barrier dysfunction in infants. In this study, three different Lactobacillus strains combined with L-tryptophan (Trp) were administered to rat pups with complementary foods. Complementary food feeding caused inflammatory cell infiltration, crypt structure irregularity and goblet cell reduction in the colon tissues of the rat pups. However, the oral administration of Trp combined with Lactiplantibacillus plantarum DPUL-S164 or Limosilactobacillus reuteri DPUL-M94 significantly restored the pathological changes in the colon tissues and inhibited the expression of pro-inflammatory cytokines in the colon and ileum of the rat pups. M94 or S164 combined with Trp intervention could promote the expression of cell differentiation genes and tight junction proteins, and restore the intestinal barrier damage caused by complementary foods in rat pups by activating the aryl hydrocarbon receptors (AhR) and nuclear factor erythroid 2-related factor 2 (Nrf2) pathway. In addition, the indole-3-lactic acid (ILA), indole-3-propionic acid (IPA), or indole-3-carbaldehyde (I3C) level in the cecal contents of the rat pups increased after intervention of Trp combined with S164 or M94, which may account for the amelioration of intestinal barrier damage in rat pups administered with complementary foods. Furthermore, S164 or M94 combined with Trp intervention up-regulated the relative abundance of f_Lactobacillaceae, f_Akkermansiaceae, g_Lactobacillus, and g_Akkermansia in the intestinal tract of the rat pups. In conclusion, S164 or M94 combined with Trp intervention can ameliorate complementary food-induced intestinal barrier damage and gut flora disorder in rat pups by producing ILA, IPA, or I3C, which are AhR ligands.
Collapse
Affiliation(s)
- Arong Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Cheng Guan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Tieqi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, P. R. China.
- Dalian Probiotics Function Research Key Laboratory, Dalian Polytechnic University, Dalian 116034, P. R. China.
| |
Collapse
|
4
|
Wang Z, Zhang J, Zuo C, Chen H, Wang L, Xie Y, Ma H, Min S, Wang X, Lian C. Identification and validation of tryptophan-related gene signatures to predict prognosis and immunotherapy response in lung adenocarcinoma reveals a critical role for PTTG1. Front Immunol 2024; 15:1386427. [PMID: 39144144 PMCID: PMC11321965 DOI: 10.3389/fimmu.2024.1386427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 07/15/2024] [Indexed: 08/16/2024] Open
Abstract
Introduction Tryptophan metabolism is strongly associated with immunosuppression and may influence lung adenocarcinoma prognosis as well as tumor microenvironment alterations. Methods Sequencing datasets were obtained from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) database. Two different clusters were identified by consensus clustering, and prognostic models were established based on differentially expressed genes (DEGs) in the two clusters. We investigated differences in mutational landscapes, enrichment pathways, immune cell infiltration, and immunotherapy between high- and low-risk scoring groups. Single-cell sequencing data from Bischoff et al. were used to identify and quantify tryptophan metabolism, and model genes were comprehensively analyzed. Finally, PTTG1 was analyzed at the pan-cancer level by the pan-TCGA cohort. Results Risk score was defined as an independent prognostic factor for lung adenocarcinoma and was effective in predicting immunotherapy response in patients with lung adenocarcinoma. PTTG1 is one of the key genes, and knockdown of PTTG1 in vitro decreases lung adenocarcinoma cell proliferation and migration and promotes apoptosis and down-regulation of tryptophan metabolism regulators in lung adenocarcinoma cells. Discussion Our study revealed the pattern and molecular features of tryptophan metabolism in lung adenocarcinoma patients, established a model of tryptophan metabolism-associated lung adenocarcinoma prognosis, and explored the roles of PTTG1 in lung adenocarcinoma progression, EMT process, and tryptophan metabolism.
Collapse
Affiliation(s)
- Ziqiang Wang
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Molecular Diagnosis Center, Joint Research Center for Regional Diseases of Institute of Health and Medicine (IHM), First Affiliated Hospital of Bengbu Medical University, Bengbu, China
- Research Center of Clinical Laboratory Science, Bengbu Medical University, Bengbu, China
| | - Jing Zhang
- Department of Genetics, School of Life Sciences, Bengbu Medical University, Bengbu, China
| | - Chao Zuo
- Department of Clinical Laboratory, Affiliated Hospital of Guilin Medical University, Guilin, China
| | - Huili Chen
- Research Center of Clinical Laboratory Science, Bengbu Medical University, Bengbu, China
| | - Luyao Wang
- Department of Genetics, School of Life Sciences, Bengbu Medical University, Bengbu, China
| | - Yiluo Xie
- Department of Clinical Medicine, Bengbu Medical University, Bengbu, China
| | - Hongyu Ma
- Department of Clinical Medicine, Bengbu Medical University, Bengbu, China
| | - Shengping Min
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Molecular Diagnosis Center, Joint Research Center for Regional Diseases of Institute of Health and Medicine (IHM), First Affiliated Hospital of Bengbu Medical University, Bengbu, China
| | - Xiaojing Wang
- Anhui Province Key Laboratory of Clinical and Preclinical Research in Respiratory Disease, Molecular Diagnosis Center, Joint Research Center for Regional Diseases of Institute of Health and Medicine (IHM), First Affiliated Hospital of Bengbu Medical University, Bengbu, China
| | - Chaoqun Lian
- Research Center of Clinical Laboratory Science, Bengbu Medical University, Bengbu, China
| |
Collapse
|
5
|
Liu H, Guo X, Jiang K, Shi B, Liu L, Hou R, Chen G, Farag MA, Yan N, Liu L. Dietary polyphenols regulate appetite mechanism via gut-brain axis and gut homeostasis. Food Chem 2024; 446:138739. [PMID: 38412807 DOI: 10.1016/j.foodchem.2024.138739] [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: 09/08/2023] [Revised: 02/04/2024] [Accepted: 02/10/2024] [Indexed: 02/29/2024]
Abstract
Nowadays, due to the rise of fast-food consumption, the metabolic diseases are increasing as a result of high-sugar and high-fat diets. Therefore, there is an urgent need for natural, healthy and side-effect-free diets in daily life. Whole grain supplementation can enhance satiety and regulate energy metabolism, effects that have been attributed to polyphenol content. Dietary polyphenols interact with gut microbiota to produce intermediate metabolites that can regulate appetite while also enhancing prebiotic effects. This review considers how interactions between gut metabolites and dietary polyphenols might regulate appetite by acting on the gut-brain axis. In addition, further advances in the study of dietary polyphenols and gut microbial metabolites on energy metabolism and gut homeostasis are summarized. This review contributes to a better understanding of how dietary polyphenols regulate appetite via the gut-brain axis, thereby providing nutritional references for citizens' dietary preferences.
Collapse
Affiliation(s)
- Hongyan Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Xue Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Kexin Jiang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Boshan Shi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, China
| | - Lingyi Liu
- Department of Food Science and Technology, University of Nebraska-Lincoln, NE, USA
| | - Ruyan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Guijie Chen
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Mohamed A Farag
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Ning Yan
- Plant Functional Component Research Center, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, No. 11 Forth Longitudinal Keyuan Rd, Laoshan District, Qingdao 266101, China
| | - Lianliang Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Deep Processing Technology of Zhejiang, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, School of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang, China.
| |
Collapse
|
6
|
Davis KL, Claudio-Etienne E, Frischmeyer-Guerrerio PA. Atopic dermatitis and food allergy: More than sensitization. Mucosal Immunol 2024:S1933-0219(24)00059-X. [PMID: 38906220 DOI: 10.1016/j.mucimm.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/01/2024] [Accepted: 06/13/2024] [Indexed: 06/23/2024]
Abstract
The increased risk of food allergy in infants with atopic dermatitis (AD) has long been recognized; an epidemiologic phenomenon termed "the atopic march." Current literature supports the hypothesis that food antigen exposure through the disrupted skin barrier in AD leads to food antigen-specific immunoglobulin E production and food sensitization. However, there is growing evidence that inflammation in the skin drives intestinal remodeling via circulating inflammatory signals, microbiome alterations, metabolites, and the nervous system. We explore how this skin-gut axis helps to explain the link between AD and food allergy beyond sensitization.
Collapse
Affiliation(s)
- Katelin L Davis
- Food Allergy Research Section, Laboratory of Allergic Diseases, The National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA; Comparative Biomedical Scientist Training Program, The Molecular Pathology Unit, Laboratory of Cancer Biology and Genetics, Center for Cancer Research, The National Cancer Institute, National Institutes of Health, Bethesda, MD, USA; Comparative Pathobiology Department, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Estefania Claudio-Etienne
- Food Allergy Research Section, Laboratory of Allergic Diseases, The National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Pamela A Frischmeyer-Guerrerio
- Food Allergy Research Section, Laboratory of Allergic Diseases, The National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
7
|
Li J, Yan Y, Fu Y, Chen Z, Yang Y, Li Y, Pan J, Li F, Zha C, Miao K, Ben L, Saleemi MK, Zhu Y, Ye H, Yang L, Wang W. ACE2 mediates tryptophan alleviation on diarrhea by repairing intestine barrier involved mTOR pathway. Cell Mol Biol Lett 2024; 29:90. [PMID: 38877403 PMCID: PMC11179371 DOI: 10.1186/s11658-024-00603-8] [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: 11/01/2023] [Accepted: 05/24/2024] [Indexed: 06/16/2024] Open
Abstract
The membrane-delimited receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), angiotensin-converting enzyme 2 (ACE2), which is expressed in the intestine, collaborates with broad neutral amino acid transporter 1 (B0AT1). Tryptophan (Trp) is transported into intestinal epithelial cells by ACE2 and B0AT1. However, whether ACE2 and its binding protein B0AT1 are involved in Trp-mediated alleviation of intestinal injury is largely unknown. Here, we used weaned piglets and IPEC-J2 cells as models and found that ACE2/B0AT1 alleviated lipopolysaccharide (LPS)-induced diarrhea and promoted intestinal barrier recovery via transport of Trp. The levels of the aryl hydrocarbon receptor (AhR) and mechanistic target of rapamycin (mTOR) pathways were altered by ACE2. Dietary Trp supplementation in LPS-treated weaned piglets revealed that Trp alleviated diarrhea by promoting ACE2/B0AT1 expression, and examination of intestinal morphology revealed that the damage to the intestinal barrier was repaired. Our study demonstrated that ACE2 accompanied by B0AT1 mediated the alleviation of diarrhea by Trp through intestinal barrier repair via the mTOR pathway.
Collapse
Affiliation(s)
- Jinze Li
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yingli Yan
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yang Fu
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zhe Chen
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yongjie Yang
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Yu Li
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jie Pan
- Zhuhai Tianjiao Technology Co., LTD, Zhuhai, 519000, China
| | - Feiwu Li
- Hunan New Wellful Co., LTD, Changsha, 410005, China
| | - Cuifang Zha
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Kai Miao
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau, 999078, China
| | - Lukuyu Ben
- International Livestock Research Institute, Nairobi, 00100, Kenya
| | | | - Yongwen Zhu
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Hui Ye
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China
| | - Lin Yang
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China.
| | - Wence Wang
- State Key Laboratory of Swine and Poultry Breeding Industry and Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation, College of Animal Science, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
8
|
Zhao X, Pang J, Zhang W, Peng X, Yang Z, Bai G, Xia Y. Tryptophan metabolism and piglet diarrhea: Where we stand and the challenges ahead. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:123-133. [PMID: 38766516 PMCID: PMC11101943 DOI: 10.1016/j.aninu.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/13/2024] [Accepted: 03/20/2024] [Indexed: 05/22/2024]
Abstract
The intestinal architecture of piglets is vulnerable to disruption during weaning transition and leads to diarrhea, frequently accompanied by inflammation and metabolic disturbances (including amino acid metabolism). Tryptophan (Trp) plays an essential role in orchestrating intestinal immune tolerance through its metabolism via the kynurenine, 5-hydroxytryptamine, or indole pathways, which could be dictated by the gut microbiota either directly or indirectly. Emerging evidence suggests a strong association between piglet diarrhea and Trp metabolism. Here we aim to summarize the intricate balance of microbiota-host crosstalk by analyzing alterations in both the host and microbial pathways of Trp and discuss how Trp metabolism may affect piglet diarrhea. Overall, this review could provide valuable insights to explore effective strategies for managing piglet diarrhea and the related challenges.
Collapse
Affiliation(s)
- Xuan Zhao
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Jiaman Pang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Wanghong Zhang
- Yunnan Vocational College of Agriculture, Kunming 650211, China
| | - Xie Peng
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Zhenguo Yang
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Guangdong Bai
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| | - Yaoyao Xia
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China
| |
Collapse
|
9
|
Kuang L, Zeng J, Li Y, Zheng J, Ren Y, Guo Z, Zhang X, Zhang C, Yang C, Mei X, Yang R, Tang L, Ji Y, Xie X, Lei M, Li C. Delineating molecular regulatory network of meat quality of longissimus dorsi indicated by transcriptomic, proteomic, and metabolomics analysis in rabbit. J Proteomics 2024; 300:105179. [PMID: 38657733 DOI: 10.1016/j.jprot.2024.105179] [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: 11/16/2023] [Revised: 04/16/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
This study aims to investigate the potential regulatory network responsible for the meat quality using multi-omics to help developing better varieties. Slaughter performance and meat quality of Shuxing No.1 rabbit outperformed IRA rabbit according to the tested rabbit parameters. Differentially expressed genes (DEGs) and differentially abundance proteins (DAPs) were involved in meat quality-related pathways, such as PI3K - Akt and MAPK signaling pathways. Only SMTNL1 and PM20D2 shared between DEGs and DAPs. Olfactory-sensitive undecanal, a differentially abundant metabolite (DAM) in volatilomics (vDAMs), correlated with all of the remaining 11 vDAMs, and most of 12 vDAMs were associated with amino acid metabolism. Integration revealed that 829 DEGs/DAPs were associated with 15 DAMs in four KEGG pathways, such as melatonin (a DAM in widely targeted metabolomics) was significantly positively correlated with ALDH and negatively correlated with RAB3D and CAT in the tryptophan metabolism pathway. This study sheds light on the potential mechanisms that contribute to the improved meat quality and flavor. SIGNIFICANCE: Shuxing No.1 rabbit is a new breed of meat rabbit in the Chinese market. In meat marketing, meat quality usually determines the purchase intention of consumers. Determining the biological and molecular mechanisms of meat quality in meat rabbit is essential for developing strategies to improve meat quality. According to the tested rabbit parameters, this study ascertained that the slaughter performance and meat quality of Shuxing No.1 rabbit surpasses that of IRA rabbit. The present study profiled the transcriptome, proteome, widely targeted metabolome, and volatilome of longissimus dorsi from Shuxing No.1 rabbit and IRA rabbit. The study found that meat quality and flavor-related tryptophan metabolism pathway is enriched with many DEGs/DAPs (including ALDH, RAB3D, and CAT), as well as a DAM, melatonin. This study sheds light on the potential mechanisms that contribute to the improved meat quality and flavor.
Collapse
Affiliation(s)
- Liangde Kuang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Jianhong Zeng
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Yuying Li
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Jie Zheng
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Yongjun Ren
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Zhiqiang Guo
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Xiangyu Zhang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Cuixia Zhang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Chao Yang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Xiuli Mei
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Rui Yang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Li Tang
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Yang Ji
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Xiaohong Xie
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China
| | - Min Lei
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China.
| | - Congyan Li
- Sichuan Animal Science Academy, Chengdu 610066, Sichuan, China; Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, Sichuan, China.
| |
Collapse
|
10
|
Neves LS, Saraiva F, Ferreira R, Leite-Moreira A, Barros AS, Diaz SO. Metabolomics and Cardiovascular Risk in Patients with Heart Failure: A Systematic Review and Meta-Analysis. Int J Mol Sci 2024; 25:5693. [PMID: 38891881 PMCID: PMC11172189 DOI: 10.3390/ijms25115693] [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: 04/10/2024] [Revised: 05/17/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
The associations of plasma metabolites with adverse cardiovascular (CV) outcomes are still underexplored and may be useful in CV risk stratification. We performed a systematic review and meta-analysis to establish correlations between blood metabolites and adverse CV outcomes in patients with heart failure (HF). Four cohorts were included, involving 83 metabolites and 37 metabolite ratios, measured in 1158 HF patients. Hazard ratios (HR) of 42 metabolites and 3 metabolite ratios, present in at least two studies, were combined through meta-analysis. Higher levels of histidine (HR 0.74, 95% CI [0.64; 0.86]) and tryptophan (HR 0.82 [0.71; 0.96]) seemed protective, whereas higher levels of symmetric dimethylarginine (SDMA) (HR 1.58 [1.30; 1.93]), N-methyl-1-histidine (HR 1.56 [1.27; 1.90]), SDMA/arginine (HR 1.38 [1.14; 1.68]), putrescine (HR 1.31 [1.06; 1.61]), methionine sulfoxide (HR 1.26 [1.03; 1.52]), and 5-hydroxylysine (HR 1.25 [1.05; 1.48]) were associated with a higher risk of CV events. Our findings corroborate important associations between metabolic imbalances and a higher risk of CV events in HF patients. However, the lack of standardization and data reporting hampered the comparison of a higher number of studies. In a future clinical scenario, metabolomics will greatly benefit from harmonizing sample handling, data analysis, reporting, and sharing.
Collapse
Affiliation(s)
- Leonel Sousa Neves
- Cardiovascular R&D Centre, UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (L.S.N.); (F.S.); (A.L.-M.)
| | - Francisca Saraiva
- Cardiovascular R&D Centre, UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (L.S.N.); (F.S.); (A.L.-M.)
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Adelino Leite-Moreira
- Cardiovascular R&D Centre, UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (L.S.N.); (F.S.); (A.L.-M.)
| | - António S. Barros
- Cardiovascular R&D Centre, UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (L.S.N.); (F.S.); (A.L.-M.)
| | - Sílvia O. Diaz
- Cardiovascular R&D Centre, UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; (L.S.N.); (F.S.); (A.L.-M.)
| |
Collapse
|
11
|
Jankech T, Gerhardtova I, Majerova P, Piestansky J, Fialova L, Jampilek J, Kovac A. A Novel RP-UHPLC-MS/MS Approach for the Determination of Tryptophan Metabolites Derivatized with 2-Bromo-4'-Nitroacetophenone. Biomedicines 2024; 12:1003. [PMID: 38790965 PMCID: PMC11117999 DOI: 10.3390/biomedicines12051003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
Many biologically active metabolites of the essential amino acid L-tryptophan (Trp) are associated with different neurodegenerative diseases and neurological disorders. Precise and reliable methods for their determination are needed. Variability in their physicochemical properties makes the analytical process challenging. In this case, chemical modification of analyte derivatization could come into play. Here, we introduce a novel fast reversed-phase ultra-high-performance liquid chromatography (RP-UHPLC) coupled with tandem mass spectrometry (MS/MS) method for the determination of Trp and its ten metabolites in human plasma samples after derivatization with 2-bromo-4'-nitroacetophenone (BNAP). The derivatization procedure was optimized in terms of incubation time, temperature, concentration, and volume of the derivatization reagent. Method development comprises a choice of a suitable stationary phase, mobile phase composition, and gradient elution optimization. The developed method was validated according to the ICH guidelines. Results of all validation parameters were within the acceptance criteria of the guideline, i.e., intra- and inter-day precision (expressed as relative standard deviation; RSD) were in the range of 0.5-8.2% and 2.3-7.4%, accuracy was in the range of 93.3-109.7% and 94.7-110.1%, limits of detection (LODs) were in the range of 0.15-9.43 ng/mL, coefficients of determination (R2) were higher than 0.9906, and carryovers were, in all cases, less than 8.8%. The practicability of the method was evaluated using the blue applicability grade index (BAGI) with a score of 65. Finally, the developed method was used for the analysis of Alzheimer's disease and healthy control plasma to prove its applicability. Statistical analysis revealed significant changes in picolinic acid (PA), anthranilic acid (AA), 5 hydroxyindole-3-acetic acid (5-OH IAA), and quinolinic acid (QA) concentration levels. This could serve as the basis for future studies that will be conducted with a large cohort of patients.
Collapse
Affiliation(s)
- Timotej Jankech
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Ivana Gerhardtova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Petra Majerova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
| | - Juraj Piestansky
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
- Department of Galenic Pharmacy, Faculty of Pharmacy, Comenius University Bratislava, Odbojarov 10, 832 32 Bratislava, Slovakia
| | - Lubica Fialova
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
| | - Josef Jampilek
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University Bratislava, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Andrej Kovac
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska Cesta 9, 845 10 Bratislava, Slovakia; (T.J.); (I.G.); (P.M.); (J.P.); (L.F.)
- Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy in Kosice, Komenského 68/73, 041 81 Kosice, Slovakia
| |
Collapse
|
12
|
Chen ST, Ran F, Shi WW, Liu CK, Wang PC, Luo HN, Yang ZM. Tryptophan in the mouse diet is essential for embryo implantation and decidualization. Front Endocrinol (Lausanne) 2024; 15:1356914. [PMID: 38752181 PMCID: PMC11094255 DOI: 10.3389/fendo.2024.1356914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 04/02/2024] [Indexed: 05/18/2024] Open
Abstract
Introduction Nutritional deficiency occurs frequently during pregnancy and breastfeeding. Tryptophan (Trp), an essential amino acid which is critical for protein synthesis, serves as the precursor for serotonin, melatonin, and kynurenine (Kyn). The imbalance between serotonin and kynurenine pathways in Trp metabolism is closely related to inflammation and depression. This study assessed the effects of Trp deficiency on mouse early pregnancy. Methods Embryo implantation and decidualization were analyzed after female mice had been fed diets containing 0.2% Trp (for the control group), 0.062% Trp (for the low Trp group) and 0% Trp (for the Trp-free group) for two months. The uteri of the mice were collected on days 4, 5, and 8 of pregnancy for further analysis. Results On day 8 of pregnancy, the number of implantation sites were found to be similar between the control and the low Trp groups. However, no implantation sites were detected in the Trp-free group. On day 5 of pregnancy, plane polarity- and decidualization-related molecules showed abnormal expression pattern in the Trp-free group. On day 4 of pregnancy, there was no significant difference in uterine receptivity molecules between the low-Trp group and the control group, but uterine receptivity was abnormal in the Trp-free group. At implantation sites of the Trp-free group, IDO and AHR levels were markedly elevated. This potentially increased levels of Kyn, 2-hydroxy estradiol, and 4-hydroxy estradiol to affect decidualization. Conclusions Trp-free diet may impair decidualization via the IDO-KYN-AHR pathway.
Collapse
Affiliation(s)
- Si-Ting Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
| | - Feng Ran
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
| | - Wen-Wen Shi
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Cheng-Kan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Peng-Chao Wang
- College of Veterinary Medicine, Shanxi Agricultural University, Jinzhong, China
| | - Hui-Na Luo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zeng-Ming Yang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountain Region, College of Animal Science, Guizhou University, Guiyang, China
| |
Collapse
|
13
|
Ding X, Jin Y, Shi X, Wang Y, Jin Z, Yin L, Gao S, Lei Y, Yang J. TDO2 promotes bladder cancer progression via AhR-mediated SPARC/FILIP1L signaling. Biochem Pharmacol 2024; 223:116172. [PMID: 38552852 DOI: 10.1016/j.bcp.2024.116172] [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: 12/14/2023] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/08/2024]
Abstract
The enzyme tryptophan 2,3-dioxygenase (TDO2) has been implicated in the dysregulation across a variety of human cancers. Despite this association, the implications of TDO2 in the progression of bladder cancer have eluded thorough understanding. In this study, we demonstrate that TDO2 expression is notably elevated in bladder cancer tissues and serves as an unfavorable prognostic factor for overall survival. Through a series of biological functional assays, we have determined that TDO2 essentially enhances cell proliferation, metastatic potential, and imparts a decreased sensitivity to the chemotherapeutic agent cisplatin. Our mechanistic investigations reveal that TDO2 augments aryl hydrocarbon receptor (AhR) signaling pathways and subsequently upregulates the expression of SPARC and FILIP1L. Importantly, we have identified a positive correlation between TDO2 levels and the basal/squamous subtype of bladder cancer, and we provide evidence to suggest that TDO2 expression is modulated by the tumor suppressors RB1 and TP53. From a therapeutic perspective, we demonstrate that the targeted inhibition of TDO2 with the molecular inhibitor 680C91 markedly attenuates tumor growth and metastasis while concurrently enhancing the efficacy of cisplatin. These findings open a new therapeutic avenue for the management of bladder cancer.
Collapse
Affiliation(s)
- Xiaoju Ding
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yunjie Jin
- Department of Oncology, Shanghai Putuo People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiaokai Shi
- Department of Urology, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yidi Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China; Department of Oncology, Shanghai Putuo People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhibo Jin
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lei Yin
- Department of Oncology, Shanghai Putuo People's Hospital, School of Medicine, Tongji University, Shanghai, China; Department of Urology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shenglin Gao
- Department of Urology, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China; Department of Urology, Gonghe County Hospital of Traditional Chinese Medicine, Qinghai, China; Changzhou Medical Center, Nanjing Medical University, Changzhou, China.
| | - Yibo Lei
- Department of Otology, Otolaryngology Hospital, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
| | - Jinjian Yang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
| |
Collapse
|
14
|
Santonocito R, Paladino L, Vitale AM, D’Amico G, Zummo FP, Pirrotta P, Raccosta S, Manno M, Accomando S, D’Arpa F, Carini F, Barone R, Rappa F, Marino Gammazza A, Bucchieri F, Cappello F, Caruso Bavisotto C. Nanovesicular Mediation of the Gut-Brain Axis by Probiotics: Insights into Irritable Bowel Syndrome. BIOLOGY 2024; 13:296. [PMID: 38785778 PMCID: PMC11117693 DOI: 10.3390/biology13050296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Dysbiosis, influenced by poor diet or stress, is associated with various systemic diseases. Probiotic supplements are recognized for stabilizing gut microbiota and alleviating gastrointestinal issues, like irritable bowel syndrome (IBS). This study focused on the tryptophan pathways, which are important for the regulation of serotonin levels, and on host physiology and behavior regulation. METHODS Nanovesicles were isolated from the plasma of subjects with chronic diarrhea, both before and after 60 days of consuming a probiotic mix (Acronelle®, Bromatech S.r.l., Milan, Italy). These nanovesicles were assessed for the presence of Tryptophan 2,3-dioxygenase 2 (TDO 2). Furthermore, the probiotics mix, in combination with H2O2, was used to treat HT29 cells to explore its cytoprotective and anti-stress effect. RESULTS In vivo, levels of TDO 2 in nanovesicles were enhanced in the blood after probiotic treatment, suggesting a role in the gut-brain axis. In the in vitro model, a typical H2O2-induced stress effect occurred, which the probiotics mix was able to recover, showing a cytoprotective effect. The probiotics mix treatment significantly reduced the heat shock protein 60 kDa levels and was able to preserve intestinal integrity and barrier function by restoring the expression and redistribution of tight junction proteins. Moreover, the probiotics mix increased the expression of TDO 2 and serotonin receptors. CONCLUSIONS This study provides evidence for the gut-brain axis mediation by nanovesicles, influencing central nervous system function.
Collapse
Affiliation(s)
- Radha Santonocito
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Letizia Paladino
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Alessandra Maria Vitale
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Giuseppa D’Amico
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Francesco Paolo Zummo
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Paolo Pirrotta
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy;
| | - Samuele Raccosta
- Cell-Tech Hub, Institute of Biophysics, National Research Council of Italy, 90146 Palermo, Italy; (S.R.); (M.M.)
| | - Mauro Manno
- Cell-Tech Hub, Institute of Biophysics, National Research Council of Italy, 90146 Palermo, Italy; (S.R.); (M.M.)
| | - Salvatore Accomando
- Department of Health Promotion, Mother and Childcare, Internal Medicine and Medical Specialities “G D‘Alessandro”, PROMISE, University of Palermo, 90127 Palermo, Italy;
| | - Francesco D’Arpa
- Department of Surgical, Oncological and Stomatological Disciplines, DICHIRONS, University of Palermo, 90127 Palermo, Italy;
| | - Francesco Carini
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Rosario Barone
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Francesca Rappa
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Antonella Marino Gammazza
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Fabio Bucchieri
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
| | - Francesco Cappello
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy;
| | - Celeste Caruso Bavisotto
- Section of Human Anatomy, Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), University of Palermo, 90127 Palermo, Italy; (R.S.); (L.P.); (A.M.V.); (G.D.); (F.P.Z.); (F.C.); (R.B.); (F.R.); (A.M.G.); (F.B.); or (F.C.)
- Euro-Mediterranean Institute of Science and Technology (IEMEST), 90139 Palermo, Italy;
| |
Collapse
|
15
|
Zhu H, Yang X, Zhao Y. Recent Advances in Current Uptake Situation, Metabolic and Nutritional Characteristics, Health, and Safety of Dietary Tryptophan. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6787-6802. [PMID: 38512048 DOI: 10.1021/acs.jafc.3c06419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Tryptophan (Trp) is an essential amino acid which is unable to be synthesized in the body. Main sources of Trp are uptake of foods such as oats and bananas. In this review, we describe the status of current dietary consumption, metabolic pathways and nutritional characteristics of Trp, as well as its ingestion and downstream metabolites for maintaining body health and safety. This review also summarizes the recent advances in Trp metabolism, particularly the 5-HT, KYN, and AhR activation pathways, revealing that its endogenous host metabolites are not only differentially affected in the body but also are closely linked to health. More attention should be paid to targeting its specific metabolic pathways and utilizing food molecules and probiotics for manipulating Trp metabolism. However, the complexity of microbiota-host interactions requires further exploration to precisely refine targets for innovating the gut microbiota-targeted diagnostic approaches and informing subsequent studies and targeted treatments of diseases.
Collapse
Affiliation(s)
- Haoyan Zhu
- Key Laboratory of the Ministry of Education for Medicinal Resource and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China
| | - Xingbin Yang
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710119, China
| | - Yan Zhao
- Key Laboratory of the Ministry of Education for Medicinal Resource and Natural Pharmaceutical Chemistry, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China
| |
Collapse
|
16
|
Wan L, Qian C, Yang C, Peng S, Dong G, Cheng P, Zong G, Han H, Shao M, Gong G, Deng Z, Pan H, Wang H, Liu X, Wang G, Lu Y, Zhao Y, Jiang Z. Ginseng polysaccharides ameliorate ulcerative colitis via regulating gut microbiota and tryptophan metabolism. Int J Biol Macromol 2024; 265:130822. [PMID: 38521337 DOI: 10.1016/j.ijbiomac.2024.130822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024]
Abstract
Ulcerative colitis (UC) is regarded as a recurring inflammatory disorder of the gastrointestinal tract, for which treatment approaches remain notably limited. In this study, we demonstrated that ginseng polysaccharides (GPs) could alleviate the development of dextran sulfate sodium (DSS)-induced UC as reflected by the ameliorated pathological lesions in the colon. GPs strikingly suppressed the expression levels of multiple inflammatory cytokines, as well as significantly inhibited the infiltration of inflammatory cells. Microbiota-dependent investigations by virtue of 16S rRNA gene sequencing, antibiotic treatment and fecal microbiota transplantation illustrated that GPs treatment prominently restored intestinal microbial balance predominantly through modulating the relative abundance of Lactobacillus. Additionally, GPs remarkably influenced the levels of microbial tryptophan metabolites, diminished the intestinal permeability and strengthened intestinal barrier integrity via inhibiting the 5-HT/HTR3A signaling pathway. Taken together, the promising therapeutic potential of GPs on the development of UC predominantly hinges on the capacity to suppress the expression of inflammatory cytokines as well as to influence Lactobacillus and microbial tryptophan metabolites.
Collapse
Affiliation(s)
- Li Wan
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Cheng Qian
- Department of Biochemistry and Molecular Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Chunmei Yang
- Department of Biochemistry and Molecular Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Sainan Peng
- Department of Biochemistry and Molecular Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Guanglu Dong
- Department of Biochemistry and Molecular Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Peng Cheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Gangfan Zong
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hongkuan Han
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Mingyue Shao
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Guanwen Gong
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Zhengming Deng
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Huafeng Pan
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Haifeng Wang
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Xinxin Liu
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Gang Wang
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yang Zhao
- Department of Biochemistry and Molecular Biology, School of Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Zhiwei Jiang
- Department of General Surgery, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China.
| |
Collapse
|
17
|
Pinheiro FI, Araújo-Filho I, do Rego ACM, de Azevedo EP, Cobucci RN, Guzen FP. Hepatopancreatic metabolic disorders and their implications in the development of Alzheimer's disease and vascular dementia. Ageing Res Rev 2024; 96:102250. [PMID: 38417711 DOI: 10.1016/j.arr.2024.102250] [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: 12/05/2023] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
Dementia has been faced with significant public health challenges and economic burdens that urges the need to develop safe and effective interventions. In recent years, an increasing number of studies have focused on the relationship between dementia and liver and pancreatic metabolic disorders that result in diseases such as diabetes, obesity, hypertension and dyslipidemia. Previous reports have shown that there is a plausible correlation between pathologies caused by hepatopancreatic dysfunctions and dementia. Glucose, insulin and IGF-1 metabolized in the liver and pancreas probably have an important influence on the pathophysiology of the most common dementias: Alzheimer's and vascular dementia. This current review highlights recent studies aimed at identifying convergent mechanisms, such as insulin resistance and other diseases, linked to altered hepatic and pancreatic metabolism, which are capable of causing brain changes that ultimately lead to dementia.
Collapse
Affiliation(s)
- Francisco I Pinheiro
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Department of Surgical, Federal University of Rio Grande do Norte, Natal 59010-180, Brazil; Institute of Education, Research and Innovation of the Liga Norte Rio-Grandense Against Cancer
| | - Irami Araújo-Filho
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Department of Surgical, Federal University of Rio Grande do Norte, Natal 59010-180, Brazil; Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Amália C M do Rego
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Institute of Education, Research and Innovation of the Liga Norte Rio-Grandense Against Cancer
| | - Eduardo P de Azevedo
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil
| | - Ricardo N Cobucci
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil; Postgraduate Program in Science Applied to Women`s Health, Medical School, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil
| | - Fausto P Guzen
- Postgraduate Program in Biotechnology, Health School, Potiguar University (UnP), Natal, RN, Brazil; Postgraduate Program in Health and Society, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró, Brazil; Postgraduate Program in Physiological Sciences, Department of Biomedical Sciences, Faculty of Health Sciences, State University of Rio Grande do Norte (UERN), Mossoró, Brazil.
| |
Collapse
|
18
|
Chen L, Xu YX, Wang YS, Zhou JL. Lipid metabolism, amino acid metabolism, and prostate cancer: a crucial metabolic journey. Asian J Androl 2024; 26:123-134. [PMID: 38157428 PMCID: PMC10919422 DOI: 10.4103/aja202363] [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: 06/16/2023] [Accepted: 10/08/2023] [Indexed: 01/03/2024] Open
Abstract
Prostate cancer (PCa) is one of the most common malignancies in males worldwide, and its development and progression involve the regulation of multiple metabolic pathways. Alterations in lipid metabolism affect the proliferation and metastatic capabilities of PCa cells. Cancer cells increase lipid synthesis and regulate fatty acid oxidation to meet their growth and energy demands. Similarly, changes occur in amino acid metabolism in PCa. Cancer cells exhibit an increased demand for specific amino acids, and they regulate amino acid transport and metabolic pathways to fulfill their proliferation and survival requirements. These changes are closely associated with disease progression and treatment response in PCa cells. Therefore, a comprehensive investigation of the metabolic characteristics of PCa is expected to offer novel insights and approaches for the early diagnosis and treatment of this disease.
Collapse
Affiliation(s)
- Lin Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Yu-Xin Xu
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Yuan-Shuo Wang
- School of Pharmacy, Guangxi Medical University, Nanning 530021, China
| | - Jian-Liang Zhou
- School of Pharmacy, Hangzhou Normal University, Hangzhou 311121, China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| |
Collapse
|
19
|
Li J, Yao X, Wu Y, Wang C, Yang J, Wu C. The anticonvulsant effect of saiga horn on febrile seizures by regulating brain serotonin content and inhibiting neuroinflammation. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117180. [PMID: 37709104 DOI: 10.1016/j.jep.2023.117180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/05/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Saiga antelope horn (SAH) is derived from the Saiga antelope (Saiga tatarica Linnaeus) of the bovidae family. SAH has been used for the treatment of febrile seizures (FS) in children for thousands of years in China. Due to the biological protection of Saiga antelope and its ethical reasons, the application of SAH has been widely restricted. Unfortunately, the field of artificial manufacturing of SAH is still blank at present. The mechanism of SAH in the treatment of FS is still unclear, which seriously hinders the further development of artificial antelope horns and the search for substitutes for SAH. At present, there is an urgent need to determine the mechanism of SAH in the treatment of FS, so as to provide a theoretical basis for artificial antelope horn and its substitutes. AIM OF THE STUDY To explore the anti-FS effect of natural SAH on FS rat model and its possible mechanism, and to provide a theoretical basis for the subsequent manufacture of artificial antelope horns and the search for the best substitutes. MATERIALS AND METHODS FS was induced by a warm water bath (48 ± 0.5 °C). The latency and seizure grade of FS were observed and recorded. Hematoxylin-eosin (HE) staining was used to observe the functional defect of hippocampal cells. The contents of tryptophan (TRP), serotonin (5-HT), IL-1β and TNF-a in rat brain tissue were determined by ELISA. qRT-PCR and Western blot were used to detect the expression of 5-HT synthesis related neurotransmitter receptors, catalytic enzymes and inflammatory factors in hippocampus. Immunofluorescence was used to observe the expression of TPH2 protein in the dorsal raphe nucleus of rat brain. RESULTS After pretreating rats with SAH, the seizure grade of FS was significantly reduced and the latency was prolonged. SAH can reduce the histological damage of hippocampal tissue induced by FS in rats. Further analysis of ELISA results showed that SAH significantly increased the levels of TRP and 5-HT in the brain of FS rats, and significantly decreased the levels of IL-1β and TNF-a. The results of QPCR showed that SAH could up-regulate the expression of ER-β and TPH2 mRNA and down-regulate the expression of IL-1β and TNF-ɑ mRNA in the hippocampus of rats. In addition, WB and immunofluorescence results showed that SAH could significantly up-regulate the expression of ER-β/TPH2/5-HT pathway in the hippocampus of FS rats and the expression of TPH2 protein in the raphe nucleus, but had no significant effect on SERT protein in the hippocampus of FS rats. In addition, ER-β protein inhibitor PHTPP significantly inhibited the therapeutic effect of SAH on FS rats. CONCLUSIONS The present study demonstrates that SAH has a significant anticonvulsant effect on the FS rat model. The mechanism may be related to the increase of TRP content and up-regulation the expression of ER-β/TPH2/5-HT signaling pathway in the brain of FS rats, thereby increasing the content of 5-HT in the brain and reducing the content of IL-1β and TNF-a in the brain.
Collapse
Affiliation(s)
- Jinhu Li
- School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, China.
| | - Xiang Yao
- School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, China.
| | - Yurou Wu
- School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, China.
| | - Chengwei Wang
- School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, China.
| | - Jincheng Yang
- School of Pharmacy/School of Modern Chinese Medicine Industry, Chengdu University of Traditional Chinese Medicine, China.
| | - Chunjie Wu
- Innovative Institute of Chinese Medicine and Pharmacy/Academy for Interdiscipline, Chengdu University of Traditional Chinese Medicine, China; Sichuan Engineering Research Center for Endangered Medicinal Animals, China.
| |
Collapse
|
20
|
Pathak S, Nadar R, Kim S, Liu K, Govindarajulu M, Cook P, Watts Alexander CS, Dhanasekaran M, Moore T. The Influence of Kynurenine Metabolites on Neurodegenerative Pathologies. Int J Mol Sci 2024; 25:853. [PMID: 38255925 PMCID: PMC10815839 DOI: 10.3390/ijms25020853] [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: 11/30/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
As the kynurenine pathway's links to inflammation, the immune system, and neurological disorders became more apparent, it attracted more and more attention. It is the main pathway through which the liver breaks down Tryptophan and the initial step in the creation of nicotinamide adenine dinucleotide (NAD+) in mammals. Immune system activation and the buildup of potentially neurotoxic substances can result from the dysregulation or overactivation of this pathway. Therefore, it is not shocking that kynurenines have been linked to neurological conditions (Depression, Parkinson's, Alzheimer's, Huntington's Disease, Schizophrenia, and cognitive deficits) in relation to inflammation. Nevertheless, preclinical research has demonstrated that kynurenines are essential components of the behavioral analogs of depression and schizophrenia-like cognitive deficits in addition to mediators associated with neurological pathologies due to their neuromodulatory qualities. Neurodegenerative diseases have been extensively associated with neuroactive metabolites of the kynurenine pathway (KP) of tryptophan breakdown. In addition to being a necessary amino acid for protein synthesis, Tryptophan is also transformed into the important neurotransmitters tryptamine and serotonin in higher eukaryotes. In this article, a summary of the KP, its function in neurodegeneration, and the approaches being used currently to target the route therapeutically are discussed.
Collapse
Affiliation(s)
- Suhrud Pathak
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Rishi Nadar
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Shannon Kim
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Keyi Liu
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Manoj Govindarajulu
- Blast-Induced Neurotrauma Branch, Center for Military Psychiatry and Neuroscience, Walter Reed Army Institute of Research, Silver Spring, MD 20910, USA
| | - Preston Cook
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | | | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| | - Timothy Moore
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL 36849, USA
| |
Collapse
|
21
|
Beurel E. Stress in the microbiome-immune crosstalk. Gut Microbes 2024; 16:2327409. [PMID: 38488630 PMCID: PMC10950285 DOI: 10.1080/19490976.2024.2327409] [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: 10/17/2023] [Accepted: 03/04/2024] [Indexed: 03/19/2024] Open
Abstract
The gut microbiota exerts a mutualistic interaction with the host in a fragile ecosystem and the host intestinal, neural, and immune cells. Perturbations of the gastrointestinal track composition after stress have profound consequences on the central nervous system and the immune system. Reciprocally, brain signals after stress affect the gut microbiota highlighting the bidirectional communication between the brain and the gut. Here, we focus on the potential role of inflammation in mediating stress-induced gut-brain changes and discuss the impact of several immune cells and inflammatory molecules of the gut-brain dialogue after stress. Understanding the impact of microbial changes on the immune system after stress might provide new avenues for therapy.
Collapse
Affiliation(s)
- Eléonore Beurel
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, USA
| |
Collapse
|
22
|
Zhao J, Zhao F, Yuan J, Liu H, Wang Y. Gut microbiota metabolites, redox status, and the related regulatory effects of probiotics. Heliyon 2023; 9:e21431. [PMID: 38027795 PMCID: PMC10643359 DOI: 10.1016/j.heliyon.2023.e21431] [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: 07/18/2023] [Revised: 09/29/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Oxidative stress is a state of imbalance between oxidation and antioxidation. It is caused by excess levels of free radicals and leads to the damage of DNA, proteins, and lipids. The crucial role of gut microbiota in regulating oxidative stress has been widely demonstrated. Studies have suggested that the redox regulatory effects of gut microbiota are related to gut microbiota metabolites, including fatty acids, lipopolysaccharides, tryptophan metabolites, trimethylamine-N-oxide and polyphenolic metabolites. In recent years, the potential benefits of probiotics have been gaining increasing scientific interest owing to their ability to modulate gut microbiota and oxidative stress. In this review, we summarise the adverse health effects of oxidative stress and discuss the role of the gut microbiota and its metabolites in redox regulation. Based on the influence of gut microbiota metabolites, the roles of probiotics in preventing oxidative stress are highlighted.
Collapse
Affiliation(s)
| | | | - Junmeng Yuan
- College of Animal Science and Technology, Qingdao Agricultural University, 266109, Qingdao, China
| | - Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, 266109, Qingdao, China
| | - Yang Wang
- College of Animal Science and Technology, Qingdao Agricultural University, 266109, Qingdao, China
| |
Collapse
|
23
|
Hui Y, Zhao J, Yu Z, Wang Y, Qin Y, Zhang Y, Xing Y, Han M, Wang A, Guo S, Yuan J, Zhao Y, Ning X, Sun S. The Role of Tryptophan Metabolism in the Occurrence and Progression of Acute and Chronic Kidney Diseases. Mol Nutr Food Res 2023; 67:e2300218. [PMID: 37691068 DOI: 10.1002/mnfr.202300218] [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: 04/10/2023] [Revised: 07/10/2023] [Indexed: 09/12/2023]
Abstract
Acute kidney injury (AKI) and chronic kidney disease (CKD) are common kidney diseases in clinics with high morbidity and mortality, but their pathogenesis is intricate. Tryptophan (Trp) is a fundamental amino acid for humans, and its metabolism produces various bioactive substances involved in the pathophysiology of AKI and CKD. Metabolomic studies manifest that Trp metabolites like kynurenine (KYN), 5-hydroxyindoleacetic acid (5-HIAA), and indoxyl sulfate (IS) increase in AKI or CKD and act as biomarkers that facilitate the early identification of diseases. Meanwhile, KYN and IS act as ligands to exacerbate kidney damage by activating aryl hydrocarbon receptor (AhR) signal transduction. The reduction of renal function can cause the accumulation of Trp metabolites which in turn accelerate the progression of AKI or CKD. Besides, gut dysbiosis induces the expansion of Enterobacteriaceae family to produce excessive IS, which cannot be excreted due to the deterioration of renal function. The application of Trp metabolism as a target in AKI and CKD will also be elaborated. Thus, this study aims to elucidate Trp metabolism in the development of AKI and CKD, and explores the relative treatment strategies by targeting Trp from the perspective of metabolomics to provide a reference for their diagnosis and prevention.
Collapse
Affiliation(s)
- Yueqing Hui
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jin Zhao
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Zixian Yu
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yuwei Wang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Yunlong Qin
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Nephrology, 980th Hospital of PLA Joint Logistical Support Force (Bethune International Peace Hospital), Shijiazhuang, Hebei, 050082, China
| | - Yumeng Zhang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Yan Xing
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Mei Han
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Anjing Wang
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
- Department of Postgraduate Student, Xi'an Medical University, Xi'an, Shaanxi, 710021, China
| | - Shuxian Guo
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Jinguo Yuan
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yueru Zhao
- School of Clinical Medicine, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
| | - Xiaoxuan Ning
- Department of Geriatric, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| |
Collapse
|
24
|
Dai C, Chen X, Qian S, Fan Y, Li L, Yuan J. Dysbiosis of intestinal homeostasis contribute to Whitmania pigra edema disease. Microb Biotechnol 2023; 16:1940-1956. [PMID: 37410351 PMCID: PMC10527190 DOI: 10.1111/1751-7915.14308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023] Open
Abstract
Whitmania pigra is widely used in traditional Chinese medicine. However, W. pigra is being threatened by an edema disease with unknown causes (WPE). In this study, a comprehensive exploration of virome, microbiome, and metabolome aberrations in the intestine of W. pigra was performed to address the aetiology of WPE. Virome analysis indicated that eukaryotic viruses did not contribute to WPE, whereas an expansion of Caudovirales was observed in WPE. Compared to the control, the microbial richness and diversity in diseased W. pigra decreased remarkably. Nine genera, including Aeromonas, Anaerotruncus, Vibrio, Proteocatella, Acinetobacter, and Brachyspira were overrepresented in WPE, whereas eleven genera, including Bifidobacterium, Phascolarctobacterium, Lactobacillus, Bacillus and AF12, were enriched in healthy individuals. Furthermore, certain metabolites, especially amino acids, short-chain fatty acids, and bile acids, were found to be linked to intestinal microbiota alterations in WPE. An integration of the microbiome and metabolome in WPE found that dysbiosis of the gut microbiota or metabolites caused WPE. Notably, W. pigra accepted intestinal microbiota transplantation from WPE donors developed WPE clinical signs eventually, and the dysbiotic intestinal microbiota can be recharacterized in this recipient W. pigra. Strikingly, pathological features of metanephridium and uraemic toxin enrichment in the gut indicated a putative interconnection between the gut and metanephridium in WPE, which represents the prototype of the gut-kidney axis in mammals. These finding exemplify the conservation of "microecological Koch's postulates" from annelids to insects and other vertebrates, which provides a direction of prevention and treatment for WPE and opens a new insight into the pathogenesis of aquatic animal diseases from an ecological perspective.
Collapse
Affiliation(s)
- Caijiao Dai
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
| | - Xin Chen
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
| | - Shiyu Qian
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Yihui Fan
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Lijuan Li
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| | - Junfa Yuan
- Department of Aquatic Animal Medicine, College of FisheriesHuazhong Agricultural UniversityWuhanChina
- National Aquatic Animal Diseases Para‐reference laboratory (HZAU)WuhanChina
- Hubei Engineering Research Centre for Aquatic Animal Diseases Control and PreventionWuhanChina
| |
Collapse
|
25
|
Shadboorestan A, Koual M, Dairou J, Coumoul X. The Role of the Kynurenine/AhR Pathway in Diseases Related to Metabolism and Cancer. Int J Tryptophan Res 2023; 16:11786469231185102. [PMID: 37719171 PMCID: PMC10503295 DOI: 10.1177/11786469231185102] [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: 04/26/2023] [Accepted: 06/12/2023] [Indexed: 09/19/2023] Open
Abstract
The Aryl hydrocarbon receptor (AhR) is a xenobiotic and endobiotic receptor, which regulates many cellular processes from contaminant metabolism to immunomodulation. Consequently, it is also involved in pathophysiological pathways and now represents a potential therapeutical target. In this review, we will highlight the ancestral function of the protein together with an illustration of its ligand's battery, emphasizing the different responses triggered by these high diverse molecules. Among them, several members of the kynurenine pathway (one key process of tryptophan catabolism) are AhR agonists and are subsequently involved in regulatory functions. We will finally display the interplay between Tryptophan (Trp) catabolism and dysregulation in metabolic pathways drawing hypothesis on the involvement of the AhR pathway in these cancer-related processes.
Collapse
Affiliation(s)
- Amir Shadboorestan
- Department of Toxicology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Meriem Koual
- T3S, INSERM UMR-S 1124, Université Paris Cité, Paris, France
- Assistance Publique-Hôpitaux de Paris, European Hospital Georges-Pompidou, Gynecologic and Breast Oncologic Surgery Department, Paris, France
| | - Julien Dairou
- CNRS, Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologiques, Université Paris Cité, Paris, France
| | - Xavier Coumoul
- T3S, INSERM UMR-S 1124, Université Paris Cité, Paris, France
| |
Collapse
|
26
|
Qin M, Lei H, Song Y, Wu M, Chen C, Cao Z, Zhang C, Du R, Zhang C, Wang X, Zhang L. Triclocarban exposure aggravates dextran sulfate sodium-induced colitis by deteriorating the gut barrier function and microbial community in mice. Food Chem Toxicol 2023; 178:113908. [PMID: 37385329 DOI: 10.1016/j.fct.2023.113908] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/12/2023] [Accepted: 06/18/2023] [Indexed: 07/01/2023]
Abstract
Triclocarban (TCC) is an antibacterial component widely used in personal care products with potential toxicity possessing public health issues. Unfortunately, enterotoxicity mechanisms of TCC exposure remain largely unknown. Using a combination of 16S rRNA gene sequencing, metabolomics, histopathological and biological examinations, this study systematically explored the deteriorating effects of TCC exposure on a dextran sulfate sodium (DSS)-induced colitis mouse model. We found that TCC exposure at different doses significantly aggravated colitis phenotypes including shortened colon length and altered colonic histopathology. Mechanically, TCC exposure further disrupted intestinal barrier function, manifested by significant downregulation of the number of goblet cells, mucus layer thickness and expression of junction proteins (MUC-2, ZO-1, E-cadherin and Occludin). The gut microbiota composition and its metabolites such as short-chain fatty acids (SCFAs) and tryptophan metabolites were also markedly altered in DSS-induced colitis mice. Consequently, TCC exposure markedly exacerbated colonic inflammatory status of DSS-treated mice by activating NF-κB pathway. These findings provided new evidence that TCC could be an environmental hazards for development of IBD or even colon cancer.
Collapse
Affiliation(s)
- Mengyu Qin
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China
| | - Hehua Lei
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China
| | - Yuchen Song
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengjing Wu
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China
| | - Chuan Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zheng Cao
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Cui Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruichen Du
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ce Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xian Wang
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.
| | - Limin Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Innovation Academy of Precision Measurement Science and Technology, CAS, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| |
Collapse
|
27
|
Li S. Modulation of immunity by tryptophan microbial metabolites. Front Nutr 2023; 10:1209613. [PMID: 37521424 PMCID: PMC10382180 DOI: 10.3389/fnut.2023.1209613] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 05/30/2023] [Indexed: 08/01/2023] Open
Abstract
Tryptophan (Trp) is an essential amino acid that can be metabolized via endogenous and exogenous pathways, including the Kynurenine Pathway, the 5-Hydroxyindole Pathway (also the Serotonin pathway), and the Microbial pathway. Of these, the Microbial Trp metabolic pathways in the gut have recently been extensively studied for their production of bioactive molecules. The gut microbiota plays an important role in host metabolism and immunity, and microbial Trp metabolites can influence the development and progression of various diseases, including inflammatory, cardiovascular diseases, neurological diseases, metabolic diseases, and cancer, by mediating the body's immunity. This review briefly outlines the crosstalk between gut microorganisms and Trp metabolism in the body, starting from the three metabolic pathways of Trp. The mechanisms by which microbial Trp metabolites act on organism immunity are summarized, and the potential implications for disease prevention and treatment are highlighted.
Collapse
|
28
|
Wei Y, Zhang Z, Zhang Y, Li J, Ruan X, Wan Q, Yin T, Zou Y, Chen S, Zhang Y. Nontargeted metabolomics analysis of follicular fluid in patients with endometriosis provides a new direction for the study of oocyte quality. MedComm (Beijing) 2023; 4:e302. [PMID: 37265938 PMCID: PMC10229744 DOI: 10.1002/mco2.302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/03/2023] Open
Abstract
Endometriosis is a common, estrogen-dependent chronic gynecological disease that endangers the reproductive system and systemic metabolism of patients. We aimed to investigate the differences in metabolic profiles in the follicular fluid between infertile patients with endometriosis and controls. A total of 25 infertile patients with endometriosis and 25 infertile controls who were similar in age, BMI, fertilization method and ovulation induction treatment were recruited in this study. Metabolomics analysis of follicular fluid was performed by two methods of high-performance liquid chromatography tandem mass spectrometry. There were 36 upregulated and 17 downregulated metabolites in the follicular fluid of patients in the endometriosis group. KEGG pathway analysis revealed that these metabolites were enriched in phenylalanine, tyrosine and tryptophan biosynthesis, aminoacyl-tRNA biosynthesis, phenylalanine metabolism and pyrimidine metabolism pathways. A biomarker panel consisting of 20 metabolites was constructed by random forest, with an accuracy of 0.946 and an AUC of 0.988. This study characterizes differences in follicular fluid metabolites and associated pathway profiles in infertile patients with endometriosis. These findings can provide a better comprehensive understanding of the disease and a new direction for the study of oocyte quality, as well as potential metabolic markers for the prognosis of endometriosis.
Collapse
Affiliation(s)
- Yiqiu Wei
- Reproductive Medicine CenterRenmin Hospital of Wuhan UniversityWuhanHubeiChina
| | - Zhourui Zhang
- The Institute for Advanced StudiesWuhan UniversityWuhanHubeiChina
| | - Yaoyao Zhang
- Department of Obstetrics and GynecologyKey Laboratory of Birth Defects and Related of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan UniversityChengduSichuanChina
| | - Jianan Li
- Reproductive Medicine CenterRenmin Hospital of Wuhan UniversityWuhanHubeiChina
| | - Xianqin Ruan
- The Institute for Advanced StudiesWuhan UniversityWuhanHubeiChina
| | - Qiongqiong Wan
- The Institute for Advanced StudiesWuhan UniversityWuhanHubeiChina
| | - Tailang Yin
- Reproductive Medicine CenterRenmin Hospital of Wuhan UniversityWuhanHubeiChina
| | - Yujie Zou
- Reproductive Medicine CenterRenmin Hospital of Wuhan UniversityWuhanHubeiChina
| | - Suming Chen
- The Institute for Advanced StudiesWuhan UniversityWuhanHubeiChina
| | - Yan Zhang
- Department of Clinical LaboratoryRenmin Hospital of Wuhan UniversityWuhanHubeiChina
| |
Collapse
|
29
|
Ku T, Liu Y, Xie Y, Hu J, Hou Y, Tan X, Ning X, Li G, Sang N. Tebuconazole mediates cognitive impairment via the microbe-gut-brain axis (MGBA) in mice. ENVIRONMENT INTERNATIONAL 2023; 173:107821. [PMID: 36827814 DOI: 10.1016/j.envint.2023.107821] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/19/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Tebuconazole, one of the most widely used triazole fungicides, is reported to potentially pose a risk of inducing neurological disorders in human beings. Considering the increasing exposure, whether it could influence cognitive function remains to be elucidated. Herein, we used a mouse model to evaluate the potential cognitive risks and possible mechanisms from the continuous edible application of tebuconazole at low concentrations. Our study revealed that tebuconazole deteriorated spatial learning and memory and downregulated the expression of glutamate receptor subunits. Importantly, metagenomic analysis indicated that tebuconazole not only led to significant shifts in the composition and diversity of the gut microbiota but also changed intestinal homeostasis. Specifically, after exposure, tebuconazole circulated in the bloodstream and largely entered the gut-brain axis for disruption, including disturbing the Firmicutes/Bacteroidetes ratio, interrelated neurotransmitters and systemic immune factors. Moreover, pretreatment with probiotics improved immune factor expression and restored the deterioration of synaptic function and spatial learning and memory. The current study provides novel insights concerning perturbations of the gut microbiome and its functions as a potential new mechanism by which tebuconazole exposes cognitive function-related human health.
Collapse
Affiliation(s)
- Tingting Ku
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yutong Liu
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yuanyuan Xie
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Jindong Hu
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yanwen Hou
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xin Tan
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Xia Ning
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Guangke Li
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China.
| | - Nan Sang
- College of Environment and Resource, Research Center of Environment and Health, Shanxi University, Taiyuan, Shanxi 030006, China.
| |
Collapse
|
30
|
Madison CA, Hillbrick L, Kuempel J, Albrecht GL, Landrock KK, Safe S, Chapkin RS, Eitan S. Intestinal epithelium aryl hydrocarbon receptor is involved in stress sensitivity and maintaining depressive symptoms. Behav Brain Res 2023; 440:114256. [PMID: 36528169 PMCID: PMC9839636 DOI: 10.1016/j.bbr.2022.114256] [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: 08/25/2022] [Revised: 12/03/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
The aryl hydrocarbon receptor (AhR) is a key regulator in the microbiome-gut-brain axis, and AhR-active microbial metabolites modulate multiple neuronal responses. We recently demonstrated that 3,3'-diindolylmethane (DIM) and 1,4-dihydroxy-2-naphthoic acid (DHNA), two selective AhR modulators (SAhRMs), act as antidepressants in female mice. Thus, to examine the role of intestinal AhR in depression, anxiety, and spatial learning, this study employed transgenic mice in which the AhR was knockout only in the intestinal epithelium (AhRΔIEC). Additionally, this study examined whether the antidepressant effects of dietary DIM and DHNA is mediated by intestinal AhR. AhRΔIEC and WT female mice were fed daily with vehicle, 20 mg/kg DIM or DHNA for three weeks prior to four weeks of unpredictable chronic mild stress (UCMS). Mice were examined for weight gain, anhedonia-like behavior (sucrose preference test), anxiety levels (open field, light/dark, elevated plus maze, novelty-induced hypophagia, and marble burying tests), and spatial learning (Morris water maze). UCMS reduced weight gain in AhRΔIECs, but not WTs. Moreover, UCMS initially reduced sucrose preference in both AhRΔIECs and WTs, but over 4 weeks of UCMS, AhRΔIECs develop resilience to UCMS-induced anhedonia. Additionally, AhRΔIECs exhibit slightly reduced anxiety in certain tests and faster spatial learning. DIM and DHNA acted as antidepressants in both AhRΔIECs and WTs. Thus, this study suggests that intestinal AhR plays differential roles, mitigating stress effects on weight gain, and increasing stress effects on mood. However, the site of antidepressant action of SAhRMs, such as DIM and DHNA, is not dependent on the expression of intestinal AhR.
Collapse
Affiliation(s)
- Caitlin A Madison
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Lauren Hillbrick
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Jacob Kuempel
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Georgia Lee Albrecht
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Kerstin K Landrock
- Department of Nutrition, Texas A&M University, College Station, TX 77843, USA
| | - Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, 4466 TAMU, College Station, TX 77843-4466, USA
| | - Robert S Chapkin
- Department of Nutrition, Texas A&M University, College Station, TX 77843, USA
| | - Shoshana Eitan
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA.
| |
Collapse
|
31
|
Zhong JG, Lan WT, Feng YQ, Li YH, Shen YY, Gong JH, Zou Z, Hou X. Associations between dysbiosis gut microbiota and changes of neurotransmitters and short-chain fatty acids in valproic acid model rats. Front Physiol 2023; 14:1077821. [PMID: 37035670 PMCID: PMC10073564 DOI: 10.3389/fphys.2023.1077821] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 03/03/2023] [Indexed: 04/11/2023] Open
Abstract
Introduction: The microbiota-gut-brain axis plays an important role in the pathophysiology of autism spectrum disorder, but its specific mechanisms remain unclear. This study aimed to explore the associations of changes in neurotransmitters and short-chain fatty acids with alterations in gut microbiota in valproic acid model rats. Methods: The autism model rats were established by prenatal exposure to valproic acid (VPA). The Morris water maze test, open field test, and three-chamber test were conducted to assess the behaviors of rats. 16S rRNA gene sequences extracted from fecal samples were used to assess the gut microbial composition. Gas and liquid chromatography-mass spectroscopy was used to identify short-chain fatty acids in fecal samples and neurotransmitters in the prefrontal cortex (PFC). Results: The results showed that 28 bacterial taxa between valproic acid model rats and control rats were identified, and the most differential bacterial taxa in valproic acid model rats and control rats belonged to metagenomic species and Lactobacillus intestinalis. Acetic acid, butyric acid, valeric acid, isobutyric acid, and isovaleric acid were significantly decreased in the valproic acid model rats compared to those in control rats. Five neurotransmitters (threonine, kynurenine, tryptophan, 5-hydroxyindoleacetic acid, denoted as 5-HIAA, and betaine aldehyde chloride, denoted as BAC) were significantly decreased, whereas betaine was increased in the prefrontal cortex of valproic acid model rats compared to control rats. A variety of neurotransmitters (≥4) were correlated with Pseudomonas, Collisella, and Streptococcus at the genus level, and they were also related to the decrease of short-chain fatty acids. Discussion: According to this study, we can preliminarily infer that gut microbiota or their metabolic productions (such as SCFAs) may influence central neurotransmitter metabolism through related pathways of the gut-brain axis. These results provide microbial and short-chain fatty acid (SCFA) frameworks for understanding the role of the microbiota-gut-brain axis in autism spectrum disorder and shed new light on autism spectrum disorder treatment.
Collapse
Affiliation(s)
- Jiu-Gen Zhong
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Wan-Ting Lan
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Yan-Qing Feng
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Yin-Hua Li
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Ying-Ying Shen
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Jia-Heng Gong
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
| | - Zhi Zou
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- *Correspondence: Zhi Zou, ; Xiaohui Hou,
| | - Xiaohui Hou
- School of Sport and Health, Guangzhou Sport University, Guangzhou, Guangdong, China
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
- *Correspondence: Zhi Zou, ; Xiaohui Hou,
| |
Collapse
|
32
|
Hou J, Xiang J, Li D, Liu X, Pan W. Gut microbial response to host metabolic phenotypes. Front Nutr 2022; 9:1019430. [PMID: 36419554 PMCID: PMC9676441 DOI: 10.3389/fnut.2022.1019430] [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] [Received: 08/15/2022] [Accepted: 10/21/2022] [Indexed: 09/10/2023] Open
Abstract
A large number of studies have proved that biological metabolic phenotypes exist objectively and are gradually recognized by humans. Gut microbes affect the host's metabolic phenotype. They directly or indirectly participate in host metabolism, physiology and immunity through changes in population structure, metabolite differences, signal transduction and gene expression. Obtaining comprehensive information and specific identification factors associated with gut microbiota and host metabolic phenotypes has become the focus of research in the field of gut microbes, and it has become possible to find new and effective ways to prevent or treat host metabolic diseases. In the future, precise treatment of gut microbes will become one of the new therapeutic strategies. This article reviews the content of gut microbes and carbohydrate, amino acid, lipid and nucleic acid metabolic phenotypes, including metabolic intermediates, mechanisms of action, latest research findings and treatment strategies, which will help to understand the relationship between gut microbes and host metabolic phenotypes and the current research status.
Collapse
Affiliation(s)
- Jinliang Hou
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Jianguo Xiang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Deliang Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xinhua Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | | |
Collapse
|
33
|
Indolepropionic Acid, a Gut Bacteria-Produced Tryptophan Metabolite and the Risk of Type 2 Diabetes and Non-Alcoholic Fatty Liver Disease. Nutrients 2022; 14:nu14214695. [PMID: 36364957 PMCID: PMC9653718 DOI: 10.3390/nu14214695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/30/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
An intricate relationship between gut microbiota, diet, and the human body has recently been extensively investigated. Gut microbiota and gut-derived metabolites, especially, tryptophan derivatives, modulate metabolic and immune functions in health and disease. One of the tryptophan derivatives, indolepropionic acid (IPA), is increasingly being studied as a marker for the onset and development of metabolic disorders, including type 2 diabetes (T2D) and non-alcoholic fatty liver disease (NAFLD). The IPA levels heavily depend on the diet, particularly dietary fiber, and show huge variations among individuals. We suggest that these variations could partially be explained using genetic variants known to be associated with specific diseases such as T2D. In this narrative review, we elaborate on the beneficial effects of IPA in the mitigation of T2D and NAFLD, and further study the putative interactions between IPA and well-known genetic variants (TCF7L2, FTO, and PPARG), known to be associated with the risk of T2D. We have investigated the long-term preventive value of IPA in the development of T2D in the Finnish prediabetic population and the correlation of IPA with phytosterols in obese individuals from an ongoing Kuopio obesity surgery study. The diversity in IPA-linked mechanisms affecting glucose metabolism and liver fibrosis makes it a unique small metabolite and a promising candidate for the reversal or management of metabolic disorders, mainly T2D and NAFLD.
Collapse
|
34
|
Wei X, Li D, Feng C, Mao H, Zhu J, Cui Y, Yang J, Gao H, Wang C. Effects of hydrogen peroxide and l-tryptophan on antioxidative potential, apoptosis, and mammalian target of rapamycin signaling in bovine intestinal epithelial cells. J Dairy Sci 2022; 105:10007-10019. [DOI: 10.3168/jds.2022-21869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 07/15/2022] [Indexed: 11/17/2022]
|
35
|
Davidson M, Rashidi N, Nurgali K, Apostolopoulos V. The Role of Tryptophan Metabolites in Neuropsychiatric Disorders. Int J Mol Sci 2022; 23:ijms23179968. [PMID: 36077360 PMCID: PMC9456464 DOI: 10.3390/ijms23179968] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/27/2022] [Accepted: 08/31/2022] [Indexed: 12/20/2022] Open
Abstract
In recent decades, neuropsychiatric disorders such as major depressive disorder, schizophrenia, bipolar, etc., have become a global health concern, causing various detrimental influences on patients. Tryptophan is an important amino acid that plays an indisputable role in several physiological processes, including neuronal function and immunity. Tryptophan’s metabolism process in the human body occurs using different pathways, including the kynurenine and serotonin pathways. Furthermore, other biologically active components, such as serotonin, melatonin, and niacin, are by-products of Tryptophan pathways. Current evidence suggests that a functional imbalance in the synthesis of Tryptophan metabolites causes the appearance of pathophysiologic mechanisms that leads to various neuropsychiatric diseases. This review summarizes the pharmacological influences of tryptophan and its metabolites on the development of neuropsychiatric disorders. In addition, tryptophan and its metabolites quantification following the neurotransmitters precursor are highlighted. Eventually, the efficiency of various biomarkers such as inflammatory, protein, electrophysiological, genetic, and proteomic biomarkers in the diagnosis/treatment of neuropsychiatric disorders was discussed to understand the biomarker application in the detection/treatment of various diseases.
Collapse
Affiliation(s)
- Majid Davidson
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3011, Australia
- Regenerative Medicine and Stem Cells Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC 3021, Australia
| | - Niloufar Rashidi
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3011, Australia
- Regenerative Medicine and Stem Cells Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC 3021, Australia
| | - Kulmira Nurgali
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3011, Australia
- Regenerative Medicine and Stem Cells Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC 3021, Australia
- Department of Medicine Western Health, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, VIC 3010, Australia
| | - Vasso Apostolopoulos
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3011, Australia
- Immunology Program, Australian Institute of Musculoskeletal Science (AIMSS), Melbourne, VIC 3021, Australia
- Correspondence:
| |
Collapse
|
36
|
Madison CA, Kuempel J, Albrecht GL, Hillbrick L, Jayaraman A, Safe S, Chapkin RS, Eitan S. 3,3'-Diindolylmethane and 1,4-dihydroxy-2-naphthoic acid prevent chronic mild stress induced depressive-like behaviors in female mice. J Affect Disord 2022; 309:201-210. [PMID: 35461819 PMCID: PMC9153281 DOI: 10.1016/j.jad.2022.04.106] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 01/06/2022] [Accepted: 04/14/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Current pharmaceutical treatments for depression are sometimes ineffective and may have unwanted side effects that interfere with patient compliance. This study examined the potential antidepressant-like effects of dietary- and microbial-derived aryl hydrocarbon receptor (AhR) ligands, 3,3'-diindolylmethane (DIM) and 1,4-dihydroxy-2-naphthoic acid (1,4-DHNA). METHODS Female C57BL/6 mice were subjected to unpredictable chronic mild stress (UCMS) or were unstressed. For three weeks prior to UCMS mice were fed daily with vehicle or 20 mg/kg DIM, 1,4-DHNA or AhR-inactive isomer 3,7-DHNA; another group was subjected to two weeks UCMS before ligand administration began. Mice were examined for anhedonia-like behavior as measured by the sucrose preference test. Additionally, anxiety levels of the mice were examined before UCMS and ligand administration began and at the end in the open field, light/dark, elevated plus maze, novelty-induced hypophagia, and marble burying tests. At the end of the experiment they were also examined in the Morris water maze (MWM) task. RESULTS Both DIM and 1,4-DHNA, but not 3,7-DHNA, successfully prevented and reversed UCMS-induced anhedonia-like behavior. Furthermore, both DIM and DHNA had little to no effect on anxiety levels and did not induce spatial learning deficits. LIMITATIONS Additional studies are required to determine to what degree the antidepressant-like effects of DIM and 1,4-DHNA can be attributed to their activities as AhR ligands. CONCLUSIONS Our findings indicate that dietary and microbial-derived AhR ligands may have clinical applications as potential antidepressants. Future studies are necessary to elucidate the role of AhR in depression-like states and the underlying mechanisms of action.
Collapse
Affiliation(s)
- Caitlin A. Madison
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, College Station, 4235 TAMU, TX 77843, USA
| | - Jacob Kuempel
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, College Station, 4235 TAMU, TX 77843, USA
| | - Georgia Lee Albrecht
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, College Station, 4235 TAMU, TX 77843, USA
| | - Lauren Hillbrick
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, College Station, 4235 TAMU, TX 77843, USA
| | - Arul Jayaraman
- Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Stephen Safe
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, 4466 TAMU, College Station, TX 77843-4466, USA
| | - Robert S. Chapkin
- Department of Nutrition, Texas A&M University, College Station, TX 77843, USA
| | - Shoshana Eitan
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, College Station, 4235 TAMU, TX 77843, USA.
| |
Collapse
|
37
|
Medvedev A, Buneeva O. Tryptophan Metabolites as Mediators of Microbiota-Gut-Brain Communication: Focus on Isatin. Front Behav Neurosci 2022; 16:922274. [PMID: 35846785 PMCID: PMC9280024 DOI: 10.3389/fnbeh.2022.922274] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 05/31/2022] [Indexed: 12/01/2022] Open
Abstract
Isatin (indole-2,3-dione) is an endogenous regulator, exhibiting various behavioral, biological, and pharmacological activities. Synthesis of isatin includes several crucial stages: cleavage of the tryptophan side chain and subsequent oxidation of the indole nucleus. Although these stages require concerted action of bacterial and host enzymes, there are two pathways of isatin formation: the host and bacterial pathways. Isatin acts as a neuroprotector in different experimental models of neurodegeneration. Its effects are realized via up- and downregulation of isatin-responsive genes and via interaction with numerous isatin-binding proteins identified in the brain. The effect of isatin on protein-protein interactions in the brain may be important for realization of weak inhibition of multiple receptor targets.
Collapse
|
38
|
Ye X, Li H, Anjum K, Zhong X, Miao S, Zheng G, Liu W, Li L. Dual Role of Indoles Derived From Intestinal Microbiota on Human Health. Front Immunol 2022; 13:903526. [PMID: 35784338 PMCID: PMC9248744 DOI: 10.3389/fimmu.2022.903526] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/23/2022] [Indexed: 12/12/2022] Open
Abstract
Endogenous indole and its derivatives (indoles), considered as promising N-substituted heterocyclic compounds, are tryptophan metabolites derived from intestinal microbiota and exhibit a range of biological activities. Recent studies indicate that indoles contribute to maintaining the biological barrier of the human intestine, which exert the anti-inflammatory activities mainly through activating AhR and PXR receptors to affect the immune system’s function, significantly improving intestinal health (inflammatory bowel disease, hemorrhagic colitis, colorectal cancer) and further promote human health (diabetes mellitus, central system inflammation, and vascular regulation). However, the revealed toxic influences cannot be ignored. Indoxyl sulfate, an indole derivative, performs nephrotoxicity and cardiovascular toxicity. We addressed the interaction between indoles and intestinal microbiota and the indoles’ effects on human health as double-edged swords. This review provides scientific bases for the correlation of indoles with diseases moreover highlights several directions for subsequent indoles-related studies.
Collapse
Affiliation(s)
- Xuewei Ye
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
- Department of Basic Medical Sciences, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Haiyi Li
- Department of Basic Medical Sciences, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Komal Anjum
- Department of Medicine and pharmacy, Ocean University of China, Qingdao, China
| | - Xinye Zhong
- Department of Basic Medical Sciences, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Shuping Miao
- Department of Basic Medical Sciences, Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Guowan Zheng
- Key Laboratory of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, China
- Otolaryngology & Head and Neck Center, Cancer Center, Department of Head and Neck Surgery, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, China
| | - Wei Liu
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Lanjuan Li, ; Wei Liu,
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Disease, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
- *Correspondence: Lanjuan Li, ; Wei Liu,
| |
Collapse
|
39
|
Minuti A, Brufani F, Menculini G, Moretti P, Tortorella A. The complex relationship between gut microbiota dysregulation and mood disorders: A narrative review. CURRENT RESEARCH IN NEUROBIOLOGY 2022; 3:100044. [PMID: 36685764 PMCID: PMC9846469 DOI: 10.1016/j.crneur.2022.100044] [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: 12/13/2021] [Revised: 04/09/2022] [Accepted: 06/01/2022] [Indexed: 01/25/2023] Open
Abstract
Gut microbiota regulates neurotransmission, neurogenesis, neuroinflammation, and neuroendocrine signaling. The aim of the present review is to analyze the literature concerning gut microbiota dysregulation and mood symptoms, with the specific hypothesis that such alterations play a role in the onset of mood disorders. Here, in fact, we review recent research focusing on how gut microbiota dysregulation influences the onset of mood disorders and on possible pathophysiological mechanisms involved in this interaction. We pay specific attention to the relationship between gut microbiota dysregulation and inflammatory state, Th17 differentiation, neuroactive factors, and TRP metabolism. The association between gut microbiota dysregulation and mood disorders is critically analyzed under a clinical point of view, also focusing on the emergence of mood symptoms in the context of medical conditions. These latter correlations may enable an interdisciplinary perspective in the clinical approach to such symptoms, as well as new treatment strategies, such as nutritional interventions, psychobiotics, antibiotics, as well as fecal microbiota transplantation.
Collapse
Affiliation(s)
| | | | | | | | - Alfonso Tortorella
- Corresponding author. Department of Psychiatry University of Perugia, Piazza Severi 1, Perugia, Italy.
| |
Collapse
|
40
|
Unbalanced IDO1/IDO2 Endothelial Expression and Skewed Keynurenine Pathway in the Pathogenesis of COVID-19 and Post-COVID-19 Pneumonia. Biomedicines 2022; 10:biomedicines10061332. [PMID: 35740354 PMCID: PMC9220124 DOI: 10.3390/biomedicines10061332] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 05/29/2022] [Accepted: 06/02/2022] [Indexed: 11/17/2022] Open
Abstract
Despite intense investigation, the pathogenesis of COVID-19 and the newly defined long COVID-19 syndrome are not fully understood. Increasing evidence has been provided of metabolic alterations characterizing this group of disorders, with particular relevance of an activated tryptophan/kynurenine pathway as described in this review. Recent histological studies have documented that, in COVID-19 patients, indoleamine 2,3-dioxygenase (IDO) enzymes are differentially expressed in the pulmonary blood vessels, i.e., IDO1 prevails in early/mild pneumonia and in lung tissues from patients suffering from long COVID-19, whereas IDO2 is predominant in severe/fatal cases. We hypothesize that IDO1 is necessary for a correct control of the vascular tone of pulmonary vessels, and its deficiency in COVID-19 might be related to the syndrome’s evolution toward vascular dysfunction. The complexity of this scenario is discussed in light of possible therapeutic manipulations of the tryptophan/kynurenine pathway in COVID-19 and post-acute COVID-19 syndromes.
Collapse
|
41
|
Interactions between Tryptophan Metabolism, the Gut Microbiome and the Immune System as Potential Drivers of Non-Alcoholic Fatty Liver Disease (NAFLD) and Metabolic Diseases. Metabolites 2022; 12:metabo12060514. [PMID: 35736447 PMCID: PMC9227929 DOI: 10.3390/metabo12060514] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 02/01/2023] Open
Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing and therefore is its burden of disease as NALFD is a risk factor for cirrhosis and is associated with other metabolic conditions such as type II diabetes, obesity, dyslipidaemia and atherosclerosis. Linking these cardiometabolic diseases is a state of low-grade inflammation, with higher cytokines and c-reactive protein levels found in individuals with NAFLD, obesity and type II diabetes. A possible therapeutic target to decrease this state of low-grade inflammation is the metabolism of the essential amino-acid tryptophan. Its three main metabolic pathways (kynurenine pathway, indole pathway and serotonin/melatonin pathway) result in metabolites such as kynurenic acid, xanturenic acid, indole-3-propionic acid and serotonin/melatonin. The kynurenine pathway is regulated by indoleamine 2,3-dioxygenase (IDO), an enzyme that is upregulated by pro-inflammatory molecules such as INF, IL-6 and LPS. Higher activity of IDO is associated with increased inflammation and fibrosis in NAFLD, as well with increased glucose levels, obesity and atherosclerosis. On the other hand, increased concentrations of the indole pathway metabolites, regulated by the gut microbiome, seem to result in more favorable outcomes. This narrative review summarizes the interactions between tryptophan metabolism, the gut microbiome and the immune system as potential drivers of cardiometabolic diseases in NAFLD.
Collapse
|
42
|
Puccetti M, Pariano M, Costantini C, Giovagnoli S, Ricci M. Pharmaceutically Active Microbial AhR Agonists as Innovative Biodrugs in Inflammation. Pharmaceuticals (Basel) 2022; 15:ph15030336. [PMID: 35337134 PMCID: PMC8949935 DOI: 10.3390/ph15030336] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 12/11/2022] Open
Abstract
Alterations of the microbiome occur in inflammatory and autoimmune diseases, a finding consistent with the role of the microbiome in the maintenance of the immune system homeostasis. In this regard, L-tryptophan (Trp) metabolites, of both host and microbial origin, act as important regulators of host–microbial symbiosis by acting as aryl hydrocarbon receptor (AhR) ligands. The intestinal and respiratory barriers are very sensitive to AhR activity, suggesting that AhR modulation could be a therapeutic option to maintain the integrity of the epithelial barrier, which has substantial implications for health even beyond the mucosal site. A number of studies have highlighted the capacity of AhR to respond to indoles and indolyl metabolites, thus positioning AhR as a candidate indole receptor. However, the context-and ligand-dependent activity of AhR requires one to resort to suitable biopharmaceutical formulations to enable site-specific drug delivery in order to achieve therapeutic effectiveness, decrease unwanted toxicities and prevent off-target effects. In this review, we highlight the dual activity of the microbial metabolite indole-3-aldehyde at the host–microbe interface and its ability to orchestrate host pathophysiology and microbial symbiosis and discuss how its proper clinical development may turn into a valuable therapeutic strategy in local and distant inflammatory diseases.
Collapse
Affiliation(s)
- Matteo Puccetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy; (S.G.); (M.R.)
- Correspondence: ; Tel.: +39-075-585-5162
| | - Marilena Pariano
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (M.P.); (C.C.)
| | - Claudio Costantini
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (M.P.); (C.C.)
| | - Stefano Giovagnoli
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy; (S.G.); (M.R.)
| | - Maurizio Ricci
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy; (S.G.); (M.R.)
| |
Collapse
|
43
|
Bairamian D, Sha S, Rolhion N, Sokol H, Dorothée G, Lemere CA, Krantic S. Microbiota in neuroinflammation and synaptic dysfunction: a focus on Alzheimer’s disease. Mol Neurodegener 2022; 17:19. [PMID: 35248147 PMCID: PMC8898063 DOI: 10.1186/s13024-022-00522-2] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 02/15/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
The implication of gut microbiota in the control of brain functions in health and disease is a novel, currently emerging concept. Accumulating data suggest that the gut microbiota exert its action at least in part by modulating neuroinflammation. Given the link between neuroinflammatory changes and neuronal activity, it is plausible that gut microbiota may affect neuronal functions indirectly by impacting microglia, a key player in neuroinflammation. Indeed, increasing evidence suggests that interplay between microglia and synaptic dysfunction may involve microbiota, among other factors. In addition to these indirect microglia-dependent actions of microbiota on neuronal activity, it has been recently recognized that microbiota could also affect neuronal activity directly by stimulation of the vagus nerve.
Main messages
The putative mechanisms of the indirect and direct impact of microbiota on neuronal activity are discussed by focusing on Alzheimer’s disease, one of the most studied neurodegenerative disorders and the prime cause of dementia worldwide. More specifically, the mechanisms of microbiota-mediated microglial alterations are discussed in the context of the peripheral and central inflammation cross-talk. Next, we highlight the role of microbiota in the regulation of humoral mediators of peripheral immunity and their impact on vagus nerve stimulation. Finally, we address whether and how microbiota perturbations could affect synaptic neurotransmission and downstream cognitive dysfunction.
Conclusions
There is strong increasing evidence supporting a role for the gut microbiome in the pathogenesis of Alzheimer’s disease, including effects on synaptic dysfunction and neuroinflammation, which contribute to cognitive decline. Putative early intervention strategies based on microbiota modulation appear therapeutically promising for Alzheimer’s disease but still require further investigation.
Collapse
|
44
|
Bottino-Rojas V, Ferreira-Almeida I, Nunes RD, Feng X, Pham TB, Kelsey A, Carballar-Lejarazú R, Gantz V, Oliveira PL, James AA. Beyond the eye: Kynurenine pathway impairment causes midgut homeostasis dysfunction and survival and reproductive costs in blood-feeding mosquitoes. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2022; 142:103720. [PMID: 34999199 PMCID: PMC11055609 DOI: 10.1016/j.ibmb.2022.103720] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
Insect ommochrome biosynthesis pathways metabolize tryptophan to generate eye-color pigments and wild-type alleles of pathway genes are useful phenotypic markers in transgenesis studies. Pleiotropic effects of mutations in some genes exert a load on both survival and reproductive success in blood-feeding species. Here, we investigated the challenges imposed on mosquitoes by the increase of tryptophan metabolites resulting from blood meal digestion and the impact of disruptions of the ommochrome biosynthesis pathway. Female mosquitoes with spontaneous and induced mutations in the orthologs of the genes encoding kynurenine hydroxylase in Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus exhibited impaired survival and reproductive phenotypes that varied in type and severity among the species. A compromised midgut permeability barrier function was also observed in An. stephensi. Surprisingly, mutant mosquitoes displayed an increase in microbiota compared to controls that was not accompanied by a general induction of immune genes. Antibiotic treatment rescued some deleterious traits implicating a role for the kynurenine pathway (KP) in midgut homeostasis. Supplemental xanthurenic acid, a KP end-product, rescued lethality and limited microbiota proliferation in Ae. aegypti. These data implicate the KP in the regulation of the host/microbiota interface. These pleiotropic effects on mosquito physiology are important in the development of genetic strategies targeting vector mosquitoes.
Collapse
Affiliation(s)
- Vanessa Bottino-Rojas
- Department of Microbiology & Molecular Genetics, University of California, Irvine, CA, USA
| | - Igor Ferreira-Almeida
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Rodrigo D Nunes
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Xuechun Feng
- Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA, USA
| | - Thai Binh Pham
- Department of Microbiology & Molecular Genetics, University of California, Irvine, CA, USA
| | - Adam Kelsey
- Department of Microbiology & Molecular Genetics, University of California, Irvine, CA, USA
| | | | - Valentino Gantz
- Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA, USA
| | - Pedro L Oliveira
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, RJ, Brazil.
| | - Anthony A James
- Department of Microbiology & Molecular Genetics, University of California, Irvine, CA, USA; Department of Molecular Biology & Biochemistry, University of California, Irvine, CA, USA.
| |
Collapse
|
45
|
Orlando A, Chimienti G, Notarnicola M, Russo F. The Ketogenic Diet Improves Gut-Brain Axis in a Rat Model of Irritable Bowel Syndrome: Impact on 5-HT and BDNF Systems. Int J Mol Sci 2022; 23:ijms23031098. [PMID: 35163022 PMCID: PMC8835524 DOI: 10.3390/ijms23031098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 02/05/2023] Open
Abstract
Altered gut-brain communication can contribute to intestinal dysfunctions in the intestinal bowel syndrome. The neuroprotective high-fat, adequate-protein, low-carbohydrate ketogenic diet (KD) modulates the levels of different neurotransmitters and neurotrophins. The aim was to evaluate the effects of KD on levels of 5-HT, the receptors 5-HT3B and 5-HT4, the 5-HT transporter SERT, the neurotrophin BDNF, and its receptor TrkB in the colon and brain of a rat model of irritable bowel syndrome (IBS). Samples from Wistar rats exposed to maternal deprivation as newborns and then fed with a standard diet (IBS-Std) or KD (IBS-KD) for ten weeks were analyzed. As controls, unexposed rats (Ctrl-Std and Ctrl-KD) were studied. IBS-Std rats had a disordered enteric serotoninergic signaling shown by increased mucosal 5-HT content and reduced SERT, 5-HT3B, and 5-HT4 levels compared to controls. In the brain, these animals showed up-regulation of the BDNF receptor TrkB as a counteracting response to the stress-induced reduction of the neurotrophin. KD showed a dual effect in improving the altered 5-HT and BDNF systems. It down-regulated the increased mucosal 5-HT without affecting transporter and receptor levels. KD improved brain BDNF levels and established negative feedback, leading to a compensatory downregulation of TrkB to maintain a physiological steady state.
Collapse
Affiliation(s)
- Antonella Orlando
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology “S. de Bellis”, IRCCS Research Hospital, 70013 Castellana Grotte, Italy;
| | - Guglielmina Chimienti
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy;
| | - Maria Notarnicola
- Laboratory of Nutritional Biochemistry, National Institute of Gastroenterology “S. de Bellis”, IRCCS Research Hospital, 70013 Castellana Grotte, Italy;
| | - Francesco Russo
- Laboratory of Nutritional Pathophysiology, National Institute of Gastroenterology “S. de Bellis”, IRCCS Research Hospital, 70013 Castellana Grotte, Italy;
- Correspondence: ; Tel.: +39-080-4994315
| |
Collapse
|
46
|
Liang Y, Xie S, He Y, Xu M, Qiao X, Zhu Y, Wu W. Kynurenine Pathway Metabolites as Biomarkers in Alzheimer's Disease. DISEASE MARKERS 2022; 2022:9484217. [PMID: 35096208 PMCID: PMC8791723 DOI: 10.1155/2022/9484217] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 12/21/2021] [Accepted: 12/31/2021] [Indexed: 12/11/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that deteriorates cognitive function. Patients with AD generally exhibit neuroinflammation, elevated beta-amyloid (Aβ), tau phosphorylation (p-tau), and other pathological changes in the brain. The kynurenine pathway (KP) and several of its metabolites, especially quinolinic acid (QA), are considered to be involved in the neuropathogenesis of AD. The important metabolites and key enzymes show significant importance in neuroinflammation and AD. Meanwhile, the discovery of changed levels of KP metabolites in patients with AD suggests that KP metabolites may have a prominent role in the pathogenesis of AD. Further, some KP metabolites exhibit other effects on the brain, such as oxidative stress regulation and neurotoxicity. Both analogs of the neuroprotective and antineuroinflammation metabolites and small molecule enzyme inhibitors preventing the formation of neurotoxic and neuroinflammation compounds may have potential therapeutic significance. This review focused on the KP metabolites through the relationship of neuroinflammation in AD, significant KP metabolites, and associated molecular mechanisms as well as the utility of these metabolites as biomarkers and therapeutic targets for AD. The objective is to provide references to find biomarkers and therapeutic targets for patients with AD.
Collapse
Affiliation(s)
- Yuqing Liang
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Shan Xie
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Yanyun He
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Manru Xu
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Xi Qiao
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Yue Zhu
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| | - Wenbin Wu
- Department of Geriatrics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, China
| |
Collapse
|
47
|
Emerging effects of tryptophan pathway metabolites and intestinal microbiota on metabolism and intestinal function. Amino Acids 2022; 54:57-70. [PMID: 35038025 DOI: 10.1007/s00726-022-03123-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 01/03/2022] [Indexed: 12/14/2022]
Abstract
The metabolism of dietary tryptophan occurs locally in the gut primarily via host enzymes, with ~ 5% metabolized by gut microbes. Three major tryptophan metabolic pathways are serotonin (beyond the scope of this review), indole, kynurenine and related derivatives. We introduce the gut microbiome, dietary tryptophan and the potential interplay of host and bacterial enzymes in tryptophan metabolism. Examples of bacterial transformation to indole and its derivative indole-3 propionic acid demonstrate associations with human metabolic disease and gut permeability, although causality remains to be determined. This review will focus on less well-known data, suggestive of local generation and functional significance in the gut, where kynurenine is converted to kynurenic acid and xanthurenic acid via enzymatic action present in both host and bacteria. Our functional data demonstrate a limited effect on intestinal epithelial cell monolayer permeability and on healthy mouse ileum. Other data suggest a modulatory effect on the microbiome, potentially in pathophysiology. Supportive of this, we found that the expression of mRNA for three kynurenine pathway enzymes were increased in colon from high-fat-fed mice, suggesting that this host pathway is perturbed in metabolic disease. These data, along with that from bacterial genomic analysis and germ-free mice, confirms expression and functional machinery of enzymes in this pathway. Therefore, the host and microbiota may play a significant dual role in either the production or regulation of these kynurenine metabolites which, in turn, can influence both host and microbiome, especially in the context of obesity and intestinal permeability.
Collapse
|
48
|
Zhang B, Jiang M, Zhao J, Song Y, Du W, Shi J. The Mechanism Underlying the Influence of Indole-3-Propionic Acid: A Relevance to Metabolic Disorders. Front Endocrinol (Lausanne) 2022; 13:841703. [PMID: 35370963 PMCID: PMC8972051 DOI: 10.3389/fendo.2022.841703] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
The increasing prevalence of metabolic syndrome has become a serious public health problem. Certain bacteria-derived metabolites play a key role in maintaining human health by regulating the host metabolism. Recent evidence shows that indole-3-propionic acid content can be used to predict the occurrence and development of metabolic diseases. Supplementing indole-3-propionic acid can effectively improve metabolic disorders and is considered a promising metabolite. Therefore, this article systematically reviews the latest research on indole-3-propionic acid and elaborates its source of metabolism and its association with metabolic diseases. Indole-3-propionic acid can improve blood glucose and increase insulin sensitivity, inhibit liver lipid synthesis and inflammatory factors, correct intestinal microbial disorders, maintain the intestinal barrier, and suppress the intestinal immune response. The study of the mechanism of the metabolic benefits of indole-3-propionic acid is expected to be a potential compound for treating metabolic syndrome.
Collapse
Affiliation(s)
- Binbin Zhang
- Department of Translational Medicine Platform, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
- College of Life Sciences, Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Minjie Jiang
- Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Jianan Zhao
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Song
- Zhejiang University of Traditional Chinese Medicine, Hangzhou, China
| | - Weidong Du
- Zhejiang Traditional Chinese Medicine Hospital, Hangzhou, China
- *Correspondence: Weidong Du, ; Junping Shi,
| | - Junping Shi
- Department of Translational Medicine Platform, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
- Department of Infectious & Hepatology Diseases, Metabolic Disease Center, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
- *Correspondence: Weidong Du, ; Junping Shi,
| |
Collapse
|
49
|
Metabolomics Insights into Inflammatory Bowel Disease: A Comprehensive Review. Pharmaceuticals (Basel) 2021; 14:ph14111190. [PMID: 34832973 PMCID: PMC8625096 DOI: 10.3390/ph14111190] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/11/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic, complex relapsing disorder characterised by immune dysregulation, gut microbiota alteration, and disturbed intestinal permeability. The diagnosis and the management of IBD are challenging due to the recurrent nature and complex evolution of the disease. Furthermore, the molecular mechanism underlying the aetiology and pathogenesis of IBD is still poorly understood. There is an unmet need for novel, reliable, and noninvasive tools for diagnosing and monitoring IBD. In addition, metabolomic profiles may provide a priori determination of optimal therapeutics and reveal novel targets for therapies. This review tries to gather scientific evidence to summarise the emerging contribution of metabolomics to elucidate the mechanisms underlying IBD and changes associated with disease phenotype and therapies, as well as to identify biomarkers with metabolic imbalance in those patients. Metabolite changes during health and disease could provide insights into the disease pathogenesis and the discovery of novel indicators for the diagnosis and prognosis assessment of IBD. Metabolomic studies in IBD have shown changes in tricarboxylic acid cycle intermediates, amino-acid and fatty-acid metabolism, and oxidative pathways. Metabolomics has made progress towards identifying metabolic alterations that may provide clinically useful biomarkers and a deeper understanding of the disease. However, at present, there is insufficient evidence evaluating the predictive accuracy of these molecular signatures and their diagnostic ability, which is necessary before metabolomic data can be translated into clinical practice.
Collapse
|