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Choi G, Ahmad J, Navarro V, Thung S, Khan I, Avula B, Barnhart H, Stolz A. Characterisation of an outbreak of acute liver injury after ingestion of plant-based food supplement. Aliment Pharmacol Ther 2024; 60:479-483. [PMID: 38874448 DOI: 10.1111/apt.18116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/07/2024] [Accepted: 06/02/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND In April 2022, French Lentil and Leek Crumble (FLLC), a new frozen food preparation manufactured by Daily Harvest™ (containing Tara flour) was offered as a natural high-protein meal product. Soon thereafter, widespread anecdotal reports of acute gastrointestinal symptoms with liver injury were reported, leading to its voluntary withdrawal in June 2022, after shipment of 28,000 preparations. AIMS To summarise the clinical and laboratory features of 17 patients with FLLC associated liver injury from the Drug Induced Liver Injury Network (DILIN). METHODS Patients with FLLC-associated liver injury were enrolled into a prospective protocol and followed for 6 months. Cases were adjudicated by expert opinion causality assessment with summary statistics for data analysis. RESULTS Enrolled subjects had a mean age of 41 years, 82% were female with mean BMI of 24 kg/m2. All were Caucasian without underlying liver disease. In most cases, abdominal pain and nausea arose within hours of FLLC ingestion. Mean days from ingestion to identification of liver injury was 3.1 days (±2.8). On enrolment, 53% had jaundice, 47% nausea, 24% fever, 59% abdominal pain, 41% itching and 12% rash. The mean initial serum ALT was 475 U/L (±302), AST 315 U/L (±315), alkaline phosphatase 190 U/L (±76), with a total bilirubin of 2.6 mg/dL (±2). In this study, 63% presented with a hepatocellular pattern of liver injury, 6% cholestatic and 31% mixed as determined by the R value. In addition, 24% of patients were hospitalised, and there were no fatalities or liver transplants. Liver biopsy in one subject revealed acute hepatitis with mild ductular reaction, mild lymphocytic and eosinophilic portal inflammation, mild lobular inflammation, preserved bile ducts and absence of interface hepatitis, steatosis, granulomatous reaction or cholestasis. Phylogenetic analysis confirmed the presence of Tara spinosa, the source of Tara flour. CONCLUSIONS Natural food products are increasingly ubiquitous and may unexpectedly cause significant illness. All clinicians should inquire whether patients are consuming natural food products or herbal supplements and consider them as a potential cause of liver injury.
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Affiliation(s)
- Gina Choi
- David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Jawad Ahmad
- Icahn School of Medicine, Mt. Sinai Health, New York, New York, USA
| | - Victor Navarro
- Einstein Healthcare Network, Jefferson Health, Philadelphia, Pennsylvania, USA
| | - Swan Thung
- Icahn School of Medicine, Mt. Sinai Health, New York, New York, USA
| | - Ikhlas Khan
- University of Mississippi, Jackson, Mississippi, USA
| | | | - Huiman Barnhart
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Andrew Stolz
- University of Southern California, Los Angeles, California, USA
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Harada M, Han S, Shi M, Ge J, Yu S, Adam J, Adamski J, Scheerer MF, Neschen S, de Angelis MH, Wang-Sattler R. Metabolic effects of SGLT2i and metformin on 3-hydroxybutyric acid and lactate in db/db mice. Int J Biol Macromol 2024; 265:130962. [PMID: 38503370 DOI: 10.1016/j.ijbiomac.2024.130962] [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: 09/06/2023] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
Combining a Sodium-Glucose-Cotransporter-2-inhibitor (SGLT2i) with metformin is recommended for managing hyperglycemia in patients with type 2 diabetes (T2D) who have cardio-renal complications. Our study aimed to investigate the metabolic effects of SGLT2i and metformin, both individually and synergistically. We treated leptin receptor-deficient (db/db) mice with these drugs for two weeks and conducted metabolite profiling, identifying 861 metabolites across kidney, liver, muscle, fat, and plasma. Using linear regression and mixed-effects models, we identified two SGLT2i-specific metabolites, X-12465 and 3-hydroxybutyric acid (3HBA), a ketone body, across all examined tissues. The levels of 3HBA were significantly higher under SGLT2i monotherapy compared to controls and were attenuated when combined with metformin. We observed similar modulatory effects on metabolites involved in protein catabolism (e.g., branched-chain amino acids) and gluconeogenesis. Moreover, combination therapy significantly raised pipecolate levels, which may enhance mTOR1 activity, while modulating GSK3, a common target of SGLT2i and 3HBA inhibition. The combination therapy also led to significant reductions in body weight and lactate levels, contrasted with monotherapies. Our findings advocate for the combined approach to better manage muscle loss, and the risks of DKA and lactic acidosis, presenting a more effective strategy for T2D treatment.
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Affiliation(s)
- Makoto Harada
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Siyu Han
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Mengya Shi
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jianhong Ge
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Shixiang Yu
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jonathan Adam
- Institute of Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Markus F Scheerer
- Institute of Experimental Genetics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Susanne Neschen
- Institute of Experimental Genetics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Martin Hrabe de Angelis
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Institute of Experimental Genetics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; Chair of Experimental Genetics, School of Life Sciences, Technical University of Munich (TUM), Freising, Germany
| | - Rui Wang-Sattler
- Institute of Translational Genomics, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany.
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Alfattah MA, Correia CN, Browne JA, McGettigan PA, Pluta K, Carrington SD, MacHugh DE, Irwin JA. Transcriptomics analysis of the bovine endometrium during the perioestrus period. PLoS One 2024; 19:e0301005. [PMID: 38547106 PMCID: PMC10977793 DOI: 10.1371/journal.pone.0301005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 03/10/2024] [Indexed: 04/02/2024] Open
Abstract
During the oestrous cycle, the bovine endometrium undergoes morphological and functional changes, which are regulated by alterations in the levels of oestrogen and progesterone and consequent changes in gene expression. To clarify these changes before and after oestrus, RNA-seq was used to profile the transcriptome of oestrus-synchronized beef heifers. Endometrial samples were collected from 29 animals, which were slaughtered in six groups beginning 12 h after the withdrawal of intravaginal progesterone releasing devices until seven days post-oestrus onset (luteal phase). The groups represented proestrus, early oestrus, metoestrus and early dioestrus (luteal phase). Changes in gene expression were estimated relative to gene expression at oestrus. Ingenuity Pathway Analysis (IPA) was used to identify canonical pathways and functional processes of biological importance. A total of 5,845 differentially expressed genes (DEGs) were identified. The lowest number of DEGs was observed at the 12 h post-oestrus time point, whereas the greatest number was observed at Day 7 post-oestrus onset (luteal phase). A total of 2,748 DEGs at this time point did not overlap with any other time points. Prior to oestrus, Neurological disease and Organismal injury and abnormalities appeared among the top IPA diseases and functions categories, with upregulation of genes involved in neurogenesis. Lipid metabolism was upregulated before oestrus and downregulated at 48h post-oestrus, at which point an upregulation of immune-related pathways was observed. In contrast, in the luteal phase the Lipid metabolism and Small molecule biochemistry pathways were upregulated.
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Affiliation(s)
- Mohammed A. Alfattah
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
- King Faisal University, Al-Ahsa, Saudi Arabia
| | - Carolina N. Correia
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - John A. Browne
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Paul A. McGettigan
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Katarzyna Pluta
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - Stephen D. Carrington
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
| | - David E. MacHugh
- Animal Genomics Laboratory, UCD School of Agriculture and Food Science, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, Ireland
| | - Jane A. Irwin
- UCD School of Veterinary Medicine, UCD College of Health and Agricultural Sciences, University College Dublin, Belfield, Dublin, Ireland
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Taylor KE, Miller LG, Contreras LM. RNA-binding proteins that preferentially interact with 8-oxoG-modified RNAs: our current understanding. Biochem Soc Trans 2024; 52:111-122. [PMID: 38174726 DOI: 10.1042/bst20230254] [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: 09/22/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
Cells encounter a variety of stresses throughout their lifetimes. Oxidative stress can occur via a myriad of factors, including exposure to chemical toxins or UV light. Importantly, these stressors induce chemical changes (e.g. chemical modifications) to biomolecules, such as RNA. Commonly, guanine is oxidized to form 8-oxo-7,8-hydroxyguanine (8-oxoG) and this modification can disrupt a plethora of cellular processes including messenger RNA translation and stability. Polynucleotide phosphorylase (PNPase), heterogeneous nuclear ribonucleoprotein D (HNRPD/Auf1), poly(C)-binding protein (PCBP1/HNRNP E1), and Y-box binding protein 1 (YB-1) have been identified as four RNA-binding proteins that preferentially bind 8-oxoG-modified RNA over unmodified RNA. All four proteins are native to humans and PNPase is additionally found in bacteria. Additionally, under oxidative stress, cell survival declines in mutants that lack PNPase, Auf1, or PCBP1, suggesting they are critical to the oxidative stress response. This mini-review captures the current understanding of the PNPase, HNRPD/Auf1, PCBP1, and YB-1 proteins and the mechanism that has been outlined so far by which they recognize and interact with 8-oxoG-modified RNAs.
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Affiliation(s)
- Kathleen E Taylor
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
| | - Lucas G Miller
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
| | - Lydia M Contreras
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX, USA
- Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX, USA
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Hardy MLM, Lakhiani D, Morris MB, Day ML. Proline and Proline Analogues Improve Development of Mouse Preimplantation Embryos by Protecting Them against Oxidative Stress. Cells 2023; 12:2640. [PMID: 37998375 PMCID: PMC10670569 DOI: 10.3390/cells12222640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
The culture of embryos in the non-essential amino acid L-proline (Pro) or its analogues pipecolic acid (PA) and L-4-thiazolidine carboxylic acid (L4T) improves embryo development, increasing the percentage that develop to the blastocyst stage and hatch. Staining of 2-cell and 4-cell embryos with tetramethylrhodamine methyl ester and 2',7'-dichlorofluorescein diacetate showed that the culture of embryos in the presence of Pro, or either of these analogues, reduced mitochondrial activity and reactive oxygen species (ROS), respectively, indicating potential mechanisms by which embryo development is improved. Inhibition of the Pro metabolism enzyme, proline oxidase, by tetrahydro-2-furoic-acid prevented these reductions and concomitantly prevented the improved development. The ways in which Pro, PA and L4T reduce mitochondrial activity and ROS appear to differ, despite their structural similarity. Specifically, the results are consistent with Pro reducing ROS by reducing mitochondrial activity while PA and L4T may be acting as ROS scavengers. All three may work to reduce ROS by contributing to the GSH pool. Overall, our results indicate that reduction in mitochondrial activity and oxidative stress are potential mechanisms by which Pro and its analogues act to improve pre-implantation embryo development.
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Xin X, Yao W, Zhang Z, Yang X, Li S, Zhu Y, Zhang C, Zhang L, Huang H, Dong T, Dong H, Feng L, Wang S. Immune and cytokine alterations and RNA-sequencing analysis in gestational tissues from pregnant women after recovery from COVID-19. BMC Infect Dis 2023; 23:620. [PMID: 37735363 PMCID: PMC10512579 DOI: 10.1186/s12879-023-08607-z] [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: 11/14/2022] [Accepted: 09/13/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND COVID-19 is a global pandemic. Understanding the immune responses in pregnant women recovering from COVID-19 may suggest new therapeutic approaches. METHODS We performed a cross-sectional study between March 1, 2020, and September 1, 2020. Participants were assigned into the convalescent COVID-19 group if they had a previous COVID-19 infection during pregnancy or the healthy control group. RNA-Seq was performed on human umbilical cord mesenchymal stem cells (hUMSCs) and human amniotic mesenchymal stem cells (hAMSCs). Immunohistochemical staining, cytokine testing, lymphocyte subset analysis, RNA-Seq, and functional analyses were performed on the placental and umbilical cord blood (UCB) and compared between the two groups. RESULTS A total of 40 pregnant women were enrolled, with 13 in the convalescent group and 27 in the control group. There were 1024, 46, and 32 differentially expressed genes (DEGs) identified in the placental tissue, hUMSCs, and hAMSCs between the convalescent and control groups, respectively. Enrichment analysis showed those DEGs were associated with immune homeostasis, antiviral activity, cell proliferation, and tissue repair. Levels of IL-6, TNF-α, total lymphocyte counts, B lymphocytes, Tregs percentages, and IFN-γ expressing CD4+ and CD8+ T cells were statistically different between two groups (p ≤ 0.05). ACE2 and TMPRSS2 expressed on the placenta were not different between the two groups (p > 0.05). CONCLUSION Multiple changes in immune responses occurred in the placental tissue, hUMSCs, and hAMSCs after maternal recovery from COVID-19, which might imply their protective roles against COVID-19 infection.
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Affiliation(s)
- Xing Xin
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Weiqi Yao
- Wuhan Optics Valley Vcanbiopharma Co. Ltd, Wuhan, 430000, Hubei, P.R. China
- VCANBIO Cell & Gene Engineering Corp., Ltd, Tianjin, 300384, P.R. China
- Department of Biology and medicine, Hubei University of Technology, Wuhan, 430068, Hubei, P.R. China
- Wuhan Optics Valley Vcanbio Cell & Gene Technology Co., Ltd, Wuhan, 430000, Hubei, P.R. China
- Hubei Engineering Research Center for Human Stem Cell Preparation, Application and Resource Preservation, Wuhan, 430000, Hubei, P.R. China
| | - Zijing Zhang
- Department of Medical office, Wuchang Shouyi College Hospital, Wuhan, 430064, Hubei, P.R. China
| | - Xin Yang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Shufang Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Ying Zhu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Cong Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Long Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China
| | - Hailong Huang
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430077, Hubei, P.R. China
| | - Tengyun Dong
- Wuhan Optics Valley Vcanbiopharma Co. Ltd, Wuhan, 430000, Hubei, P.R. China
- Wuhan Optics Valley Vcanbio Cell & Gene Technology Co., Ltd, Wuhan, 430000, Hubei, P.R. China
- Hubei Engineering Research Center for Human Stem Cell Preparation, Application and Resource Preservation, Wuhan, 430000, Hubei, P.R. China
| | - Haibo Dong
- Wuhan Optics Valley Vcanbio Cell & Gene Technology Co., Ltd, Wuhan, 430000, Hubei, P.R. China
- Hubei Engineering Research Center for Human Stem Cell Preparation, Application and Resource Preservation, Wuhan, 430000, Hubei, P.R. China
| | - Ling Feng
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China.
| | - Shaoshuai Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Road, Wuhan, 430032, Hubei, P.R. China.
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Joncquel M, Labasque J, Demaret J, Bout MA, Hamroun A, Hennart B, Tronchon M, Defevre M, Kim I, Kerckhove A, George L, Gilleron M, Dessein AF, Zerimech F, Grzych G. Targeted Metabolomics Analysis Suggests That Tacrolimus Alters Protection against Oxidative Stress. Antioxidants (Basel) 2023; 12:1412. [PMID: 37507951 PMCID: PMC10376759 DOI: 10.3390/antiox12071412] [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: 06/23/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Tacrolimus (FK506) is an immunosuppressant that is experiencing a continuous rise in usage worldwide. The related side effects are known to be globally dose-dependent. Despite numerous studies on FK506, the mechanisms underlying FK506 toxicity are still not well understood. It is therefore essential to explore the toxicity mediated by FK506. To accomplish this, we conducted a targeted metabolomic analysis using LC-MS on the plasma samples of patients undergoing FK506 treatment. The aim was to identify any associated altered metabolic pathway. Another anti-calcineurin immunosuppressive therapy, ciclosporin (CSA), was also studied. Increased plasma concentrations of pipecolic acid (PA) and sarcosine, along with a decrease in the glycine/sarcosine ratio and a tendency of increased plasma lysine was observed in patients under FK506 compared to control samples. Patients under CSA do not show an increase in plasma PA compared to the control samples, which does not support a metabolic link between the calcineurin and PA. The metabolomics changes observed in patients under FK506 highlight a possible link between FK506 and the action of an enzyme involved in both PA and sarcosine catabolism and oxidative pathway, the Peroxisomal sarcosine oxidase (PIPOX). Moreover, PA could be investigated as a potential biomarker of early nephrotoxicity in the follow-up of patients under FK506.
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Affiliation(s)
- Marie Joncquel
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Julie Labasque
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Julie Demaret
- CHU Lille, Centre de Biologie Pathologie Génétique, Institut d'Immunologie, F-59000 Lille, France
| | - Marie-Adélaïde Bout
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Aghilès Hamroun
- UMR1167 RIDAGE, Institut Pasteur de Lille, Inserm, Université de Lille, CHU Lille, F-59000 Lille, France
| | - Benjamin Hennart
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Toxicologie et Génopathies, F-59000 Lille, France
| | - Mathieu Tronchon
- CHU Lille, Centre de Biologie Pathologie Génétique, Institut d'Immunologie, F-59000 Lille, France
| | - Magali Defevre
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Isabelle Kim
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Alain Kerckhove
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Laurence George
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Mylène Gilleron
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Anne-Frédérique Dessein
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
| | - Farid Zerimech
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
- Institut Pasteur de Lille, Université de Lille, ULR 4483, IMPECS, F-59000 Lille, France
| | - Guillaume Grzych
- CHU Lille, Centre de Biologie Pathologie Génétique, Service Hormonologie Métabolisme Nutrition Oncologie, F-59000 Lille, France
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Zhou S, Gao X, Chen C, Zhang J, Zhang Y, Zhang L, Yan X. Porcine cardiac blood - Salvia miltiorrhiza root alleviates cerebral ischemia reperfusion injury by inhibiting oxidative stress induced apoptosis through PI3K/AKT/Bcl-2/Bax signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2023; 316:116698. [PMID: 37286116 DOI: 10.1016/j.jep.2023.116698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/23/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Salvia miltiorrhiza Bge. mixed with porcine cardiac blood (PCB-DS) is mainly employed for the treatment of brain ischemia-induced mental disturbances, palpitations and phlegm confusion based on the traditional principle of Menghe medical sect. PCB is the guide to DS and enhances the effect of DS. However, the potential mechanism of PCB-DS preventing cerebral ischemia/reperfusion injury (CIRI) from the perspective of oxidative stress induced cell apoptosis remains unknown. AIM OF THE STUDY To investigate the pharmacological activity and molecular mechanism of PCB-DS against CIRI. MATERIALS AND METHODS DS samples processed with different methods were prepared and UPLC-Q-TOF-MS/MS was employed for qualitative analysis of the respective processing product. The middle cerebral artery occlusion reperfusion model was then established to investigate the pharmacological activities of PCB-DS. Pathological changes in the rat brain were observed by triphenyl tetrazolium chloride (TTC), hematoxylin-eosin, and TUNEL staining. The levels of IL-6, IL-1β, and TNF-α were detected by ELISA to evaluate the inflammatory damage. Metabolomics of cerebrospinal fluid was further used to explore the potential mechanism of PCB-DS in preventing CIRI. Based on this, the levels of oxidative stress-related lactate dehydrogenase (LDH), reactive oxygen species (ROS), malondialdehyde (MDA), and superoxide dismutase (SOD) were determined. The protein levels of PI3K, AKT, Bcl-2, Bax, cleaved-caspase-3, and cleaved-caspase-9 proteins of the cerebral infarct zone were finally measured by western blotting. RESULTS Forty-seven components were identified in four processing products. Compared to DS, the content of total aqueous components in PCB-DS was significantly increased including salvianolic acid B isomer, salvianolic acid D, salvianolic acid F, and salvianolic acid H/I/J. Among the DS, DS processed with wine, DS processed with pig blood, and DS processed with porcine cardiac blood, PCB-DS best alleviated the CIRI through the neurological score, brain infarct volume, brain histopathology and the levels of inflammatory factors in the brain. Twenty-five significant metabolites in the cerebrospinal fluid were screened out between the sham and I/R groups. They were mainly involved in the beta-alanine metabolism, histidine metabolism, and lysine degradation, which indicated that PCB-DS may inhibit oxidative stress-induced apoptosis to achieve treating ischemic stroke. The results of biomedical examination showed that PCB-DS could alleviate oxidative damage, significantly downregulate the expression of Bax, cleaved caspase-3 and cleaved caspase-9, and upregulate the expression of p-PI3K, p-AKT, and Bcl-2. CONCLUSION In summary, this study demonstrated that PCB-DS alleviated CIRI and the molecular mechanism may be related to inhibiting the oxidative stress induced apoptosis through PI3K/AKT/Bcl-2/Bax signaling pathway.
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Affiliation(s)
- Shikang Zhou
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou, 213003, PR China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing, 210023, PR China
| | - Xiaoqin Gao
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing, 210023, PR China
| | - Can Chen
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing, 210023, PR China
| | - Jinyun Zhang
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou, 213003, PR China
| | - Yi Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing, 210023, PR China
| | - Li Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing, 210023, PR China.
| | - Xiaojing Yan
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou, 213003, PR China.
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9
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Li X, Liu Y, Xu G, Xie Y, Wang X, Wu J, Chen H. Plasma metabolomic characterization of SARS-CoV-2 Omicron infection. Cell Death Dis 2023; 14:276. [PMID: 37076483 PMCID: PMC10113737 DOI: 10.1038/s41419-023-05791-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 04/21/2023]
Abstract
Omicron variants of SARS-CoV-2 have spread rapidly worldwide; however, most infected patients have mild or no symptoms. This study aimed to understand the host response to Omicron infections by performing metabolomic profiling of plasma. We observed that Omicron infections triggered an inflammatory response and innate immune, and adaptive immunity was suppressed, including reduced T-cell response and immunoglobulin antibody production. Similar to the original SARS-CoV-2 strain circulating in 2019, the host developed an anti-inflammatory response and accelerated energy metabolism in response to Omicron infection. However, differential regulation of macrophage polarization and reduced neutrophil function has been observed in Omicron infections. Interferon-induced antiviral immunity was not as strong in Omicron infections as in the original SARS-CoV-2 infections. The host response to Omicron infections increased antioxidant capacity and liver detoxification more than in the original strain. Hence, these findings suggest that Omicron infections cause weaker inflammatory alterations and immune responses than the original SARS-CoV-2 strain.
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Affiliation(s)
- Xue Li
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, 300350, China
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, 300350, China
- Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, 300350, China
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, 300350, China
| | - Yimeng Liu
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, 300350, China
| | - Guiying Xu
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, 300350, China
| | - Yi Xie
- Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, 300350, China
| | - Ximo Wang
- Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, 300350, China.
- Tianjin Key Laboratory of Acute Abdomen Disease Associated Organ injury and ITCWM Repair, Tianjin, China.
| | - Junping Wu
- Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, 300350, China.
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, 300350, China.
- Department of Tuberculosis, Haihe Hospital, Tianjin University, Tianjin, 300350, China.
| | - Huaiyong Chen
- Department of Basic Medicine, Haihe Clinical School, Tianjin Medical University, Tianjin, 300350, China.
- Department of Basic Medicine, Haihe Hospital, Tianjin University, Tianjin, 300350, China.
- Tianjin Key Laboratory of Lung Regenerative Medicine, Tianjin, 300350, China.
- Key Research Laboratory for Infectious Disease Prevention for State Administration of Traditional Chinese Medicine, Tianjin Institute of Respiratory Diseases, Tianjin, 300350, China.
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10
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McDew-White M, Lee E, Premadasa LS, Alvarez X, Okeoma CM, Mohan M. Cannabinoids modulate the microbiota-gut-brain axis in HIV/SIV infection by reducing neuroinflammation and dysbiosis while concurrently elevating endocannabinoid and indole-3-propionate levels. J Neuroinflammation 2023; 20:62. [PMID: 36890518 PMCID: PMC9993397 DOI: 10.1186/s12974-023-02729-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/13/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND Although the advent of combination anti-retroviral therapy (cART) has transformed HIV into a manageable chronic disease, an estimated 30-50% of people living with HIV (PLWH) exhibit cognitive and motor deficits collectively known as HIV-associated neurocognitive disorders (HAND). A key driver of HAND neuropathology is chronic neuroinflammation, where proinflammatory mediators produced by activated microglia and macrophages are thought to inflict neuronal injury and loss. Moreover, the dysregulation of the microbiota-gut-brain axis (MGBA) in PLWH, consequent to gastrointestinal dysfunction and dysbiosis, can lead to neuroinflammation and persistent cognitive impairment, which underscores the need for new interventions. METHODS We performed RNA-seq and microRNA profiling in basal ganglia (BG), metabolomics (plasma) and shotgun metagenomic sequencing (colon contents) in uninfected and SIV-infected rhesus macaques (RMs) administered vehicle (VEH/SIV) or delta-9-tetrahydrocannabinol (THC) (THC/SIV). RESULTS Long-term, low-dose THC reduced neuroinflammation and dysbiosis and significantly increased plasma endocannabinoid, endocannabinoid-like, glycerophospholipid and indole-3-propionate levels in chronically SIV-infected RMs. Chronic THC potently blocked the upregulation of genes associated with type-I interferon responses (NLRC5, CCL2, CXCL10, IRF1, IRF7, STAT2, BST2), excitotoxicity (SLC7A11), and enhanced protein expression of WFS1 (endoplasmic reticulum stress) and CRYM (oxidative stress) in BG. Additionally, THC successfully countered miR-142-3p-mediated suppression of WFS1 protein expression via a cannabinoid receptor-1-mediated mechanism in HCN2 neuronal cells. Most importantly, THC significantly increased the relative abundance of Firmicutes and Clostridia including indole-3-propionate (C. botulinum, C. paraputrificum, and C. cadaveris) and butyrate (C. butyricum, Faecalibacterium prausnitzii and Butyricicoccus pullicaecorum) producers in colonic contents. CONCLUSION This study demonstrates the potential of long-term, low-dose THC to positively modulate the MGBA by reducing neuroinflammation, enhancing endocannabinoid levels and promoting the growth of gut bacterial species that produce neuroprotective metabolites, like indole-3-propionate. The findings from this study may benefit not only PLWH on cART, but also those with no access to cART and more importantly, those who fail to suppress the virus under cART.
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Affiliation(s)
- Marina McDew-White
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 West Military Drive, San Antonio, TX, 78227-5302, USA
| | - Eunhee Lee
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 West Military Drive, San Antonio, TX, 78227-5302, USA
| | - Lakmini S Premadasa
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 West Military Drive, San Antonio, TX, 78227-5302, USA
| | - Xavier Alvarez
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 West Military Drive, San Antonio, TX, 78227-5302, USA
| | - Chioma M Okeoma
- Department of Pathology, Microbiology, and Immunology, New York Medical College, Valhalla, NY, 10595-1524, USA
| | - Mahesh Mohan
- Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 West Military Drive, San Antonio, TX, 78227-5302, USA.
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11
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Hill EB, Baxter BA, Pfluger B, Slaughter CK, Beale M, Smith HV, Stromberg SS, Tipton M, Ibrahim H, Rao S, Leach H, Ryan EP. Plasma, urine, and stool metabolites in response to dietary rice bran and navy bean supplementation in adults at high-risk for colorectal cancer. FRONTIERS IN GASTROENTEROLOGY (LAUSANNE, SWITZERLAND) 2023; 2:1087056. [PMID: 38469373 PMCID: PMC10927265 DOI: 10.3389/fgstr.2023.1087056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Introduction Dietary intake of whole grains and legumes and adequate physical activity (PA) have been associated with reduced colorectal cancer (CRC) risk. A single-blinded, two-arm, randomized, placebo-controlled pilot trial was implemented to evaluate the impact of a 12-week dietary intervention of rice bran + navy bean supplementation and PA education on metabolite profiles and the gut microbiome among individuals at high risk of CRC. Methods Adults (n=20) were randomized 1:1 to dietary intervention or control. All participants received PA education at baseline. Sixteen study foods were prepared with either heat-stabilized rice bran + navy bean powder or Fibersol®-2 as a placebo. Intervention participants consumed 30 g rice bran + 30 g navy bean powder daily; those in the control group consumed 10 g placebo daily. Non-targeted metabolite profiling was performed by UPLC-MS/MS to evaluate plasma, urine, and stool at 0, 6, and 12 weeks. Stool was also analyzed for primary and secondary bile acids (BAs) and short chain fatty acids (SCFAs) by UPLC-MS/MS and microbial community structure via 16S amplicon sequencing. Two-way ANOVA was used to compare differences between groups for metabolites, and mixed models were used to compare differences between groups for BAs, SCFAs, and alpha and beta diversity measures of microbial community structure. Results Across biological matrices, the intervention resulted in changes to several amino acid and lipid metabolites, compared to control. There was a 2.33-fold difference in plasma (p<0.001) and a 3.33-fold difference in urine (p=0.008) for the amino acid S-methylcysteine at 12 weeks. Fold-differences to 4-methoxyphenol sulfate in plasma and urine after 6 and 12 weeks (p<0.001) was a novel result from this combined rice bran and navy bean intervention in people. A 2.98-fold difference in plasma (p=0.002) and a 17.74-fold difference in stool (p=0.026) was observed for the lipid octadecenedioylcarnitine at 12 weeks. For stool BAs, 3-oxocholic acid was increased at 12 weeks compared to control within a subset of individuals (mean difference 16.2 ug/uL, p=0.022). No significant differences were observed between groups for stool SCFAs or microbial community structure. Discussion Dietary intake of rice bran + navy beans demonstrates beneficial modulation of host and gut microbial metabolism and represents a practical and affordable means of increasing adherence to national guidelines for CRC control and prevention in a high-risk population.
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Affiliation(s)
- Emily B. Hill
- Department of Pediatrics, Section of Nutrition, School of Medicine, University of Colorado, Aurora, CO, United States
| | - Bridget A. Baxter
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Brigitte Pfluger
- Rollins School of Public Health, Emory University, Atlanta, GA, United States
| | - Caroline K. Slaughter
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Melanie Beale
- Department of Health and Exercise Science, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, United States
| | - Hillary V. Smith
- Colorado School of Public Health, Colorado State University, Fort Collins, CO, United States
| | - Sophia S. Stromberg
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Madison Tipton
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Hend Ibrahim
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Sangeeta Rao
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
| | - Heather Leach
- Department of Health and Exercise Science, College of Health & Human Sciences, Colorado State University, Fort Collins, CO, United States
| | - Elizabeth P. Ryan
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States
- Colorado School of Public Health, Colorado State University, Fort Collins, CO, United States
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12
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Fusarium graminearum Ste3 G-Protein Coupled Receptor: A Mediator of Hyphal Chemotropism and Pathogenesis. mSphere 2022; 7:e0045622. [PMID: 36377914 PMCID: PMC9769807 DOI: 10.1128/msphere.00456-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fungal hyphal chemotropism has been shown to be a major contributor to host-pathogen interactions. Previous studies on Fusarium species have highlighted the involvement of the Ste2 G-protein-coupled receptor (GPCR) in mediating polarized hyphal growth toward host-released peroxidase. Here, the role of the opposite mating type GPCR, Ste3, is characterized with respect to Fusarium graminearum chemotropism and pathogenicity. Fgste3Δ deletion strains were found to be compromised in the chemotropic response toward peroxidase, development of lesions on germinating wheat, and infection of Arabidopsis thaliana leaves. In the absence of FgSte3 or FgSte2, F. graminearum cells exposed to peroxidase showed no phosphorylation of the cell-wall integrity, mitogen-activated protein kinase pathway component Mgv1. In addition, transcriptomic gene expression profiling yielded a list of genes involved in cellular reorganization, cell wall remodeling, and infection-mediated responses that were differentially modulated by peroxidase when FgSte3 was present. Deletion of FgSte3 yielded the downregulation of genes associated with mycotoxin biosynthesis and appressorium development, compared to the wild-type strain, both in the presence of peroxidase. Together, these findings contribute to our understanding of the mechanism underlying fungal chemotropism and pathogenesis while raising the novel hypothesis that FgSte2 and FgSte3 are interdependent on each other for the mediation of the redirection of hyphal growth in response to host-derived peroxidase. IMPORTANCE Fusarium head blight of wheat, caused by the filamentous fungus Fusarium graminearum, leads to devastating global food shortages and economic losses. Fungal hyphal chemotropism has been shown to be a major contributor to host-pathogen interactions. Here, the role of the opposite mating type GPCR, Ste3, is characterized with respect to F. graminearum chemotropism and pathogenicity. These findings contribute to our understanding of the mechanisms underlying fungal chemotropism and pathogenesis.
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13
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Baxter BA, Li KJ, Zarei I, Yao L, Rao S, Ryan EP. Nontargeted and Targeted Metabolomics Identifies Dietary Exposure Biomarkers for Navy Bean and Rice Bran Consumption in Children and Adults. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:14531-14543. [PMID: 36318603 DOI: 10.1021/acs.jafc.2c02378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dietary exposure biomarkers are needed for advancing knowledge on healthy foods. This study examined biomarkers for navy beans and rice bran in children and adults. Plasma, urine, stool, and study foods from dietary intervention studies were analyzed by metabolomics. A total of 38 children and 49 adults were assessed after consuming navy beans and/or rice bran for 2-, 4-, 6-, or 12 weeks. From the 138-175 metabolites modulated by diet, 11 were targeted for quantification. Trigonelline and pipecolate concentrations increased in children and adult plasma after 4 weeks compared to baseline. Increased xanthurenate (46%) was observed in children plasma after rice bran intake for 4 weeks. Study foods with navy beans had higher S-methylcysteine compared to control and supported the increased urine S-methylcysteine sulfoxide. Nontargeted metabolomics was moderately effective to identify target molecules as candidate biomarkers. Study limitations include interindividual metabolite variations before diet intervention. Validation is warranted using cross-over designs and larger sample sizes.
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Affiliation(s)
- Bridget A Baxter
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Katherine J Li
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Iman Zarei
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Linxing Yao
- Analytical Resources Core─Bioanalysis and Omics, Fort Collins, Colorado 80523 United States
| | - Sangeeta Rao
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
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14
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Liu L, Wu J, Shi M, Wang F, Lu H, Liu J, Chen W, Yu G, Liu D, Yang J, Luo Q, Ni Y, Jin X, Jin X, Chen WL. New Metabolic Alterations and A Predictive Marker Pipecolic Acid in Sera for Esophageal Squamous Cell Carcinoma. GENOMICS, PROTEOMICS & BIOINFORMATICS 2022; 20:670-687. [PMID: 35351627 PMCID: PMC9880896 DOI: 10.1016/j.gpb.2021.08.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 07/07/2021] [Accepted: 09/27/2021] [Indexed: 01/31/2023]
Abstract
Esophageal squamous cell carcinoma (ESCC) is a major histological subtype of esophageal cancer with a poor prognosis. Although several serum metabolomic investigations have been reported, ESCC tumor-associated metabolic alterations and predictive biomarkers in sera have not been defined. Here, we enrolled 34 treatment-naive patients with ESCC and collected their pre- and post-esophagectomy sera together with the sera from 34 healthy volunteers for a metabolomic survey. Our comprehensive analysis identified ESCC tumor-associated metabolic alterations as represented by a panel of 12 serum metabolites. Notably, postoperative abrosia and parenteral nutrition substantially perturbed the serum metabolome. Furthermore, we performed an examination using sera from carcinogen-induced mice at the dysplasia and ESCC stages and identified three ESCC tumor-associated metabolites conserved between mice and humans. Notably, among these metabolites, the level of pipecolic acid was observed to be progressively increased in mouse sera from dysplasia to cancerization, and it could be used to accurately discriminate between mice at the dysplasia stage and healthy control mice. Furthermore, this metabolite is essential for ESCC cells to restrain oxidative stress-induced DNA damage and cell proliferation arrest. Together, this study revealed a panel of 12 ESCC tumor-associated serum metabolites with potential for monitoring therapeutic efficacy and disease relapse, presented evidence for refining parenteral nutrition composition, and highlighted serum pipecolic acid as an attractive biomarker for predicting ESCC tumorigenesis.
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Affiliation(s)
- Lei Liu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Jia Wu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Minxin Shi
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Fengying Wang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Haimin Lu
- Department of Thoracic Surgery, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Jibing Liu
- Department of Epidemiology, Tumor Institute, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China
| | - Weiqin Chen
- Department of Clinical Laboratory, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Guanzhen Yu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Dan Liu
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Jing Yang
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Qin Luo
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Yan Ni
- The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310029, China
| | - Xing Jin
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China,Corresponding authors.
| | - Xiaoxia Jin
- Department of Pathology, The Affiliated Tumor Hospital of Nantong University, Nantong 226361, China,Corresponding authors.
| | - Wen-Lian Chen
- Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China,Corresponding authors.
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15
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Keswani T, Obeidallah A, Nieves E, Sidoli S, Fazzari M, Taylor T, Seydel K, Daily JP. Pipecolic Acid, a Putative Mediator of the Encephalopathy of Cerebral Malaria and the Experimental Model of Cerebral Malaria. J Infect Dis 2022; 225:705-714. [PMID: 34932816 PMCID: PMC8844588 DOI: 10.1093/infdis/jiab615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 12/20/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND We explored a metabolic etiology of cerebral malaria (CM) coma. METHODS Plasma metabolites were compared between Malawian children with CM and mild Plasmodium falciparum malaria. A candidate molecule was further studied in animal models of malaria. RESULTS Clinically abnormal concentrations of pipecolic acid (PA) were present in CM plasma, and nearly normal in mild malaria samples. PA is renally cleared and the elevated PA blood levels were associated with renal insufficiency, which was present only in CM subjects. Prior studies demonstrate that PA has neuromodulatory effects and is generated by malaria parasites. PA brain levels in Plasmodium berghei ANKA-infected animals in the experimental cerebral malaria (ECM) model inversely correlated with normal behavior and correlated with blood-brain barrier (BBB) permeability. Mice infected with malaria species that do not induce neurological abnormalities or manifest BBB permeability had elevated plasma PA levels similar to ECM plasma at 7 days postinfection; however, they had low PA levels in the brain compared to ECM mice brains at 7 days postinfection. CONCLUSIONS Our model suggests that malaria-generated PA induces coma in CM and in ECM. The role of BBB permeability and the mechanisms of PA neuromodulation in CM will require additional investigation.
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Affiliation(s)
- Tarun Keswani
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Aisha Obeidallah
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Edward Nieves
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Melissa Fazzari
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Terrie Taylor
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
- Department of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Karl Seydel
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
- Department of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, USA
| | - Johanna P Daily
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, USA
- Infectious Diseases, Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
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16
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Lim SY, Ng BH, Vermulapalli D, Lau H, Carrasco Laserna AK, Yang X, Tan SH, Chan MY, Li SFY. Simultaneous Polar Metabolite and N-Glycan Extraction Workflow for Joint-Omics Analysis: A Synergistic Approach for Novel Insights into Diseases. J Proteome Res 2022; 21:643-653. [DOI: 10.1021/acs.jproteome.1c00676] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Si Ying Lim
- NUS Graduate School for Integrative Sciences & Engineering (NGS), National University of Singapore, University Hall, Tan Chin Tuan Wing, Singapore 119077
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Bao Hui Ng
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Dhruti Vermulapalli
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Hazel Lau
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Fusionopolis Way, Innovis, #08-03, Singapore 138634
| | - Anna Karen Carrasco Laserna
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
- Central Instrumentation Facility (Laguna Campus), Office of the Vice Chancellor for Research and Innovation, De La Salle University, 2041 Taft Avenue, Manila 1004, Philippines
| | - Xiaoxun Yang
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599
| | - Sock Hwee Tan
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599
| | - Mark Y. Chan
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599
| | - Sam Fong Yau Li
- NUS Graduate School for Integrative Sciences & Engineering (NGS), National University of Singapore, University Hall, Tan Chin Tuan Wing, Singapore 119077
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
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17
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Tserga A, Pouloudi D, Saulnier-Blache JS, Stroggilos R, Theochari I, Gakiopoulou H, Mischak H, Zoidakis J, Schanstra JP, Vlahou A, Makridakis M. Proteomic Analysis of Mouse Kidney Tissue Associates Peroxisomal Dysfunction with Early Diabetic Kidney Disease. Biomedicines 2022; 10:biomedicines10020216. [PMID: 35203426 PMCID: PMC8869654 DOI: 10.3390/biomedicines10020216] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
Background: The absence of efficient inhibitors for diabetic kidney disease (DKD) progression reflects the gaps in our understanding of DKD molecular pathogenesis. Methods: A comprehensive proteomic analysis was performed on the glomeruli and kidney cortex of diabetic mice with the subsequent validation of findings in human biopsies and omics datasets, aiming to better understand the underlying molecular biology of early DKD development and progression. Results: LC–MS/MS was employed to analyze the kidney proteome of 2 DKD models: Ins2Akita (early and late DKD) and db/db mice (late DKD). The abundance of detected proteins was defined. Pathway analysis of differentially expressed proteins in the early and late DKD versus the respective controls predicted dysregulation in DKD hallmarks (peroxisomal lipid metabolism and β-oxidation), supporting the functional relevance of the findings. Comparing the observed protein changes in early and late DKD, the consistent upregulation of 21 and downregulation of 18 proteins was detected. Among these were downregulated peroxisomal and upregulated mitochondrial proteins. Tissue sections from 16 DKD patients were analyzed by IHC confirming our results. Conclusion: Our study shows an extensive differential expression of peroxisomal proteins in the early stages of DKD that persists regardless of the disease severity, providing new perspectives and potential markers of diabetic kidney dysfunction.
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Affiliation(s)
- Aggeliki Tserga
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, Soranou Efessiou 4, 11527 Athens, Greece; (A.T.); (R.S.); (J.Z.)
| | - Despoina Pouloudi
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (I.T.); (H.G.)
| | - Jean Sébastien Saulnier-Blache
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1297, Institute of Cardiovascular and Metabolic Disease, 31432 Toulouse, France;
- Université Toulouse III Paul-Sabatier, 31062 Toulouse, France
| | - Rafael Stroggilos
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, Soranou Efessiou 4, 11527 Athens, Greece; (A.T.); (R.S.); (J.Z.)
| | - Irene Theochari
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (I.T.); (H.G.)
| | - Harikleia Gakiopoulou
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (D.P.); (I.T.); (H.G.)
| | | | - Jerome Zoidakis
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, Soranou Efessiou 4, 11527 Athens, Greece; (A.T.); (R.S.); (J.Z.)
| | - Joost Peter Schanstra
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1297, Institute of Cardiovascular and Metabolic Disease, 31432 Toulouse, France;
- Université Toulouse III Paul-Sabatier, 31062 Toulouse, France
- Correspondence: (J.P.S.); (A.V.); (M.M.); Tel.: +33-5-31224078 (J.P.S.); +30-210-6597506 (A.V.); +30-210-6597485 (M.M.)
| | - Antonia Vlahou
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, Soranou Efessiou 4, 11527 Athens, Greece; (A.T.); (R.S.); (J.Z.)
- Correspondence: (J.P.S.); (A.V.); (M.M.); Tel.: +33-5-31224078 (J.P.S.); +30-210-6597506 (A.V.); +30-210-6597485 (M.M.)
| | - Manousos Makridakis
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, Soranou Efessiou 4, 11527 Athens, Greece; (A.T.); (R.S.); (J.Z.)
- Correspondence: (J.P.S.); (A.V.); (M.M.); Tel.: +33-5-31224078 (J.P.S.); +30-210-6597506 (A.V.); +30-210-6597485 (M.M.)
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18
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Gholaminejad A, Fathalipour M, Roointan A. Comprehensive analysis of diabetic nephropathy expression profile based on weighted gene co-expression network analysis algorithm. BMC Nephrol 2021; 22:245. [PMID: 34215202 PMCID: PMC8252307 DOI: 10.1186/s12882-021-02447-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 06/10/2021] [Indexed: 12/30/2022] Open
Abstract
Background Diabetic nephropathy (DN) is the major complication of diabetes mellitus, and leading cause of end-stage renal disease. The underlying molecular mechanism of DN is not yet completely clear. The aim of this study was to analyze a DN microarray dataset using weighted gene co-expression network analysis (WGCNA) algorithm for better understanding of DN pathogenesis and exploring key genes in the disease progression. Methods The identified differentially expressed genes (DEGs) in DN dataset GSE47183 were introduced to WGCNA algorithm to construct co-expression modules. STRING database was used for construction of Protein-protein interaction (PPI) networks of the genes in all modules and the hub genes were identified considering both the degree centrality in the PPI networks and the ranked lists of weighted networks. Gene ontology and Reactome pathway enrichment analyses were performed on each module to understand their involvement in the biological processes and pathways. Following validation of the hub genes in another DN dataset (GSE96804), their up-stream regulators, including microRNAs and transcription factors were predicted and a regulatory network comprising of all these molecules was constructed. Results After normalization and analysis of the dataset, 2475 significant DEGs were identified and clustered into six different co-expression modules by WGCNA algorithm. Then, DEGs of each module were subjected to functional enrichment analyses and PPI network constructions. Metabolic processes, cell cycle control, and apoptosis were among the top enriched terms. In the next step, 23 hub genes were identified among the modules in genes and five of them, including FN1, SLC2A2, FABP1, EHHADH and PIPOX were validated in another DN dataset. In the regulatory network, FN1 was the most affected hub gene and mir-27a and REAL were recognized as two main upstream-regulators of the hub genes. Conclusions The identified hub genes from the hearts of co-expression modules could widen our understanding of the DN development and might be of targets of future investigations, exploring their therapeutic potentials for treatment of this complicated disease.
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Affiliation(s)
- Alieh Gholaminejad
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Fathalipour
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Amir Roointan
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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19
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Charpentier J, Briand F, Lelouvier B, Servant F, Azalbert V, Puel A, Christensen JE, Waget A, Branchereau M, Garret C, Lluch J, Heymes C, Brousseau E, Burcelin R, Guzylack L, Sulpice T, Grasset E. Liraglutide targets the gut microbiota and the intestinal immune system to regulate insulin secretion. Acta Diabetol 2021; 58:881-897. [PMID: 33723651 DOI: 10.1007/s00592-020-01657-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/09/2020] [Indexed: 01/05/2023]
Abstract
AIMS Liraglutide controls type 2 diabetes (T2D) and inflammation. Gut microbiota regulates the immune system and causes at least in part type 2 diabetes. We here evaluated whether liraglutide regulates T2D through both gut microbiota and immunity in dysmetabolic mice. METHODS Diet-induced dysmetabolic mice were treated for 14 days with intraperitoneal injection of liraglutide (100 µg/kg) or with vehicle or Exendin 4 (10 µg/kg) as controls. Various metabolic parameters, the intestinal immune cells were characterized and the 16SrDNA gene sequenced from the gut. The causal role of gut microbiota was shown using large spectrum antibiotics and by colonization of germ-free mice with the gut microbiota from treated mice. RESULTS Besides, the expected metabolic impacts liraglutide treatment induced a specific gut microbiota specific signature when compared to vehicle or Ex4-treated mice. However, liraglutide only increased glucose-induced insulin secretion, reduced the frequency of Th1 lymphocytes, and increased that of TReg in the intestine. These effects were abolished by a concomitant antibiotic treatment. Colonization of germ-free mice with gut microbiota from liraglutide-treated diabetic mice improved glucose-induced insulin secretion and regulated the intestinal immune system differently from what observed in germ-free mice colonized with microbiota from non-treated diabetic mice. CONCLUSIONS Altogether, our result demonstrated first the influence of liraglutide on gut microbiota and the intestinal immune system which could at least in part control glucose-induced insulin secretion.
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Affiliation(s)
- Julie Charpentier
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Francois Briand
- PHYSIOGENEX SAS Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Benjamin Lelouvier
- Vaiomer, Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Florence Servant
- Vaiomer, Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Vincent Azalbert
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Anthony Puel
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Jeffrey E Christensen
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Aurélie Waget
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Maxime Branchereau
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Céline Garret
- Vaiomer, Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Jérome Lluch
- Vaiomer, Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Christophe Heymes
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
| | - Emmanuel Brousseau
- PHYSIOGENEX SAS Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Rémy Burcelin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France.
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France.
| | - Laurence Guzylack
- Neuro-Gastroenterology and Nutrition Team, Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Thierry Sulpice
- PHYSIOGENEX SAS Prologue Biotech, 516 Rue Pierre et Marie Curie, 31670, Labège Innopole, France
| | - Estelle Grasset
- Institut National de la Santé et de la Recherche Médicale (INSERM), Toulouse, France
- Unité Mixte de Recherche (UMR) 1048, Institut des Maladies Métaboliques et Cardiovasculaires (I2MC), Université Paul Sabatier (UPS), Team 2: 'Intestinal Risk Factors Diabetes, Dyslipidemia', 31432, Toulouse Cedex 4, France
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In Vitro Fertilisation of Mouse Oocytes in L-Proline and L-Pipecolic Acid Improves Subsequent Development. Cells 2021; 10:cells10061352. [PMID: 34072568 PMCID: PMC8229504 DOI: 10.3390/cells10061352] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 01/29/2023] Open
Abstract
Exposure of oocytes to specific amino acids during in vitro fertilisation (IVF) improves preimplantation embryo development. Embryos fertilised in medium with proline and its homologue pipecolic acid showed increased blastocyst formation and inner cell mass cell numbers compared to embryos fertilised in medium containing no amino acids, betaine, glycine, or histidine. The beneficial effect of proline was prevented by the addition of excess betaine, glycine, and histidine, indicating competitive inhibition of transport-mediated uptake. Expression of transporters of proline in oocytes was investigated by measuring the rate of uptake of radiolabelled proline in the presence of unlabelled amino acids. Three transporters were identified, one that was sodium-dependent, PROT (SLC6A7), and two others that were sodium-independent, PAT1 (SLC36A1) and PAT2 (SLC36A2). Immunofluorescent staining showed localisation of PROT in intracellular vesicles and limited expression in the plasma membrane, while PAT1 and PAT2 were both expressed in the plasma membrane. Proline and pipecolic acid reduced mitochondrial activity and reactive oxygen species in oocytes, and this may be responsible for their beneficial effect. Overall, our results indicate the importance of inclusion of specific amino acids in IVF medium and that consideration should be given to whether the addition of multiple amino acids prevents the action of beneficial amino acids.
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21
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Lahham M, Jha S, Goj D, Macheroux P, Wallner S. The family of sarcosine oxidases: Same reaction, different products. Arch Biochem Biophys 2021; 704:108868. [PMID: 33812916 DOI: 10.1016/j.abb.2021.108868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 12/11/2022]
Abstract
The subfamily of sarcosine oxidase is a set of enzymes within the larger family of amine oxidases. It is ubiquitously distributed among different kingdoms of life. The member enzymes catalyze the oxidization of an N-methyl amine bond of amino acids to yield unstable imine species that undergo subsequent spontaneous non-enzymatic reactions, forming an array of different products. These products range from demethylated simple species to complex alkaloids. The enzymes belonging to the sarcosine oxidase family, namely, monomeric and heterotetrameric sarcosine oxidase, l-pipecolate oxidase, N-methyltryptophan oxidase, NikD, l-proline dehydrogenase, FsqB, fructosamine oxidase and saccharopine oxidase have unique features differentiating them from other amine oxidases. This review highlights the key attributes of the sarcosine oxidase family enzymes, in terms of their substrate binding motif, type of oxidation reaction mediated and FAD regeneration, to define the boundaries of this group and demarcate these enzymes from other amine oxidase families.
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Affiliation(s)
- Majd Lahham
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria; Department of Biochemistry and Microbiology, Aljazeera Private University, Ghabagheb, Syria
| | - Shalinee Jha
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Dominic Goj
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Peter Macheroux
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Silvia Wallner
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria.
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22
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Bocca C, Le Paih V, Chao de la Barca JM, Kouassy Nzoughet J, Amati-Bonneau P, Blanchet O, Védie B, Géromin D, Simard G, Procaccio V, Bonneau D, Lenaers G, Orssaud C, Reynier P. A plasma metabolomic signature of Leber hereditary optic neuropathy showing taurine and nicotinamide deficiencies. Hum Mol Genet 2021; 30:21-29. [PMID: 33437983 PMCID: PMC8033144 DOI: 10.1093/hmg/ddab013] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 01/02/2023] Open
Abstract
Leber's hereditary optic neuropathy (LHON) is the most common disorder due to mitochondrial DNA mutations and complex I deficiency. It is characterized by an acute vision loss, generally in young adults, with a higher penetrance in males. How complex I dysfunction induces the peculiar LHON clinical presentation remains an unanswered question. To gain an insight into this question, we carried out a non-targeted metabolomic investigation using the plasma of 18 LHON patients, during the chronic phase of the disease, comparing them to 18 healthy controls. A total of 500 metabolites were screened of which 156 were accurately detected. A supervised Orthogonal Partial Least Squares-Discriminant Analysis (OPLS-DA) highlighted a robust model for disease prediction with a Q2 (cum) of 55.5%, with a reliable performance during the permutation test (cross-validation analysis of variance, P-value = 5.02284e-05) and a good prediction of a test set (P = 0.05). This model highlighted 10 metabolites with variable importance in the projection (VIP) > 0.8. Univariate analyses revealed nine discriminating metabolites, six of which were the same as those found in the Orthogonal Projections to Latent Structures Discriminant Analysis model. In total, the 13 discriminating metabolites identified underlining dietary metabolites (nicotinamide, taurine, choline, 1-methylhistidine and hippurate), mitochondrial energetic substrates (acetoacetate, glutamate and fumarate) and purine metabolism (inosine). The decreased concentration of taurine and nicotinamide (vitamin B3) suggest interesting therapeutic targets, given their neuroprotective roles that have already been demonstrated for retinal ganglion cells. Our results show a reliable predictive metabolomic signature in the plasma of LHON patients and highlighted taurine and nicotinamide deficiencies.
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Affiliation(s)
- Cinzia Bocca
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Victor Le Paih
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France
| | - Juan Manuel Chao de la Barca
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | | | - Patrizia Amati-Bonneau
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Odile Blanchet
- Centre de Ressources Biologiques, BB-0033-00038, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Benoit Védie
- Plateformes Centre de Ressources Biologiques et Tumorothèque, BB-0033-00063, Hôpital Européen Georges Pompidou, Paris, France.,Hôpital Européen Georges Pompidou, Département de Biochimie, Assistance Publique - Hôpitaux de Paris (AP-HP), Université Paris Descartes, Paris, France
| | - Daniela Géromin
- Plateformes Centre de Ressources Biologiques et Tumorothèque, BB-0033-00063, Hôpital Européen Georges Pompidou, Paris, France
| | - Gilles Simard
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Vincent Procaccio
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Dominique Bonneau
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
| | - Guy Lenaers
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France
| | - Christophe Orssaud
- Unité Fonctionnelle d'Ophtalmologie, CRMR Ophtara, Hôpital Européen Georges Pompidou (HEGP), GH Paris Centre, Assistance Publique - Hôpitaux de Paris (AP-HP), 75015 Paris, France.,Service d'Ophtalmologie, Ophtara Hôpital Necker-Enfants Malades, GH Paris Centre, AP-HP, 149, rue de Sèvres, 75015 Paris, France
| | - Pascal Reynier
- Unité Mixte de Recherche (UMR) MITOVASC, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, 49933 Angers, France.,Département de Biochimie et Génétique, Centre Hospitalier Universitaire, 49933 Angers, France
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23
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Fu C, Yang Y, Kumrungsee T, Kimoto A, Izu H, Kato N. Low-Dose Ethanol Has Impacts on Plasma Levels of Metabolites Relating to Chronic Disease Risk in SAMP8 mice. J Nutr Sci Vitaminol (Tokyo) 2021; 66:553-560. [PMID: 33390397 DOI: 10.3177/jnsv.66.553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The effects of low-dose alcohol on experimental animals are unclear. This study examined plasma metabolites in senescence-accelerated mice 8 (SAMP8) given low-dose ethanol, and compared them with aging progress and skeletal muscle strength. Male SAMP8 mice (10-wk-old) were given drinking water containing 0% (control), 1%, 2%, or 5% (v/v) ethanol for 14 wk. Compared with the control group, only mice who consumed 1% ethanol experienced a lower senescence score at 18 and 23 wk, as well as an increased limb grip strength at 21 wk. Plasma metabolites of control, 1% and 2% ethanol groups were analyzed by capillary electrophoresis-time-of-flight mass spectrometry (CE-TOF/MS). Among the 7 metabolites affected by ethanol, notewhorthy is the positive association of the ethanol levels in drinking water with the levels of α-ketoglutarate (antioxidant and anti-inflammatory metabolite) and hippurate (antioxidant and microbial co-metabolite) (p<0.05). Intriguingly, the levels of 2-hydroxyisobutyrate (the biomarker of energy metabolism and microbial co-metabolite) were higher in the 1% ethanol group (p<0.05), but not in the 2% ethanol group as compared to the control. Furthermore, the levels of some of the metabolites affected were correlated with some variables in the grading score of senescence and muscle strength. This study provides a novel insight into how low-dose ethanol in SAMP8 mice modulates the levels of circulating metabolites relating to chronic disease risk.
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Affiliation(s)
- Churan Fu
- Graduate School of Integrated Sciences for Life, Hiroshima University
| | - Yongshou Yang
- Graduate School of Integrated Sciences for Life, Hiroshima University
| | | | - Akiko Kimoto
- Faculty of Human Ecology, Yasuda Women's University
| | - Hanae Izu
- Quality and Evaluation Research Division, National Research Institute of Brewing
| | - Norihisa Kato
- Graduate School of Integrated Sciences for Life, Hiroshima University
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24
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Zarei I, Baxter BA, Oppel RC, Borresen EC, Brown RJ, Ryan EP. Plasma and Urine Metabolite Profiles Impacted by Increased Dietary Navy Bean Intake in Colorectal Cancer Survivors: A Randomized-Controlled Trial. Cancer Prev Res (Phila) 2020; 14:497-508. [PMID: 33361317 DOI: 10.1158/1940-6207.capr-20-0270] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/28/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022]
Abstract
Navy beans contain bioactive phytochemicals with colon cancer prevention properties as demonstrated in carcinogen-induced animal models. Human studies support that dietary navy bean intake modulates metabolism by the gut microbiome. This study investigated the effect of navy bean ingestion on plasma and urine metabolite profiles of overweight and obese colorectal cancer survivors. Twenty participants completed a single-blinded, randomized-controlled dietary intervention with precooked navy beans (35 g bean powder/day) or control (0 g/day) for 4 weeks. Plasma and urine were collected at baseline, 2 weeks, and 4 weeks following consumption. Nontargeted metabolomics was applied to study meals and snacks, navy beans, plasma, and urine. Increased navy bean consumption was hypothesized to (i) delineate dietary biomarkers and (ii) promote metabolic shifts relevant for cancer protection in the plasma and urine metabolome. At 4 weeks, 16 plasma and 16 urine metabolites were significantly different in the navy bean intervention group compared with placebo control (P < 0.05). Increased plasma 2,3-dihydroxy-2-methylbutyrate (1.34-fold), S-methylcysteine (1.92-fold), and pipecolate (3.89-fold), and urine S-adenosylhomocysteine (2.09-fold) and cysteine (1.60-fold) represent metabolites with cancer-protective actions following navy bean consumption. Diet-derived metabolites were detected in plasma or urine and confirmed for presence in the navy bean intervention meals and snacks. These included 3-(4-hydroxyphenyl)propionate, betaine, pipecolate, S-methylcysteine, choline, eicosapentaenoate (20:5n3), benzoate, S-adenosylhomocysteine, N-delta-acetylornithine, cysteine, 3-(4-hydroxyphenyl)lactate, gentisate, hippurate, 4-hydroxyhippurate, and salicylate. The navy bean dietary intervention for 4 weeks showed changes to pathways of metabolic importance to colorectal cancer prevention and merit continued attention for dietary modulation in future high-risk cohort investigations. PREVENTION RELEVANCE: This clinical study suggests that increased consumption of navy beans would deliver bioactive metabolites to individuals at high risk for colorectal cancer recurrence and produce metabolic shifts in plasma and urine profiles.
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Affiliation(s)
- Iman Zarei
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Bridget A Baxter
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Renee C Oppel
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Erica C Borresen
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Regina J Brown
- University of Colorado School of Medicine, Aurora, Colorado
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado.
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25
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Baek HJ, Kim SE, Kim JK, Shin DH, Kim TH, Kim KG, Deng CX, Kim SS. Inhibition of AKT suppresses the initiation and progression of BRCA1-associated mammary tumors. Int J Biol Sci 2018; 14:1769-1781. [PMID: 30443181 PMCID: PMC6231214 DOI: 10.7150/ijbs.29242] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 09/07/2018] [Indexed: 12/26/2022] Open
Abstract
Despite the high incidence of BRCA1-mutant breast cancer, few substantial improvements in preventing or treating such cancers have been made. Using a Brca1-mutant mouse model, we examined the contribution of AKT to the incidence and growth of Brca1-mutated mammary tumors. A haploinsufficiency of Akt1 in Brca1-mutant mouse model significantly decreased mammary tumor formation from 54% in Brca1co/coMMTV-Cre mice to 22% in Brca1 co/coMMTV-Cre Akt1+/- mice. Notably, treatment of tumor-bearing Brca1-mutant mice with the AKT-inhibitor, MK-2206, yielded partial response or stable disease up to 91% of mice in maximum response. MK-2206 treatment also significantly reduced tumor volume and delayed recurrence in allograft and adjuvant studies, respectively. A correlation analysis of MK-2206 responses with gene expression profiles of tumors at baseline identified seven genes that were differentially expressed between tumors that did and did not respond to MK-2206 treatment. Our findings enhance our understanding of the involvement of AKT signaling in BRCA1-deficient mammary tumors and provide preclinical evidence that targeted AKT inhibition is a potential strategy for the prevention and therapeutic management of BRCA1-associated breast cancer.
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Affiliation(s)
- Hye Jung Baek
- Research Institute, National Cancer Center, Goyang, 10408, Korea
| | - Sun Eui Kim
- Research Institute, National Cancer Center, Goyang, 10408, Korea
| | - Jong Kwang Kim
- Research Institute, National Cancer Center, Goyang, 10408, Korea
| | - Dong Hoon Shin
- Research Institute, National Cancer Center, Goyang, 10408, Korea
| | - Tae Hyun Kim
- Research Institute, National Cancer Center, Goyang, 10408, Korea
| | - Kwang Gi Kim
- Department of Biomedical Engineering, Gachon University College of Medicine, Incheon, 21565, Korea
| | - Chu-Xia Deng
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau SAR 999078, China
| | - Sang Soo Kim
- Research Institute, National Cancer Center, Goyang, 10408, Korea
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Hartmann M, Zeier J. l-lysine metabolism to N-hydroxypipecolic acid: an integral immune-activating pathway in plants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 96:5-21. [PMID: 30035374 DOI: 10.1111/tpj.14037] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/22/2018] [Accepted: 07/03/2018] [Indexed: 05/03/2023]
Abstract
l-lysine catabolic routes in plants include the saccharopine pathway to α-aminoadipate and decarboxylation of lysine to cadaverine. The current review will cover a third l-lysine metabolic pathway having a major role in plant systemic acquired resistance (SAR) to pathogen infection that was recently discovered in Arabidopsis thaliana. In this pathway, the aminotransferase AGD2-like defense response protein (ALD1) α-transaminates l-lysine and generates cyclic dehydropipecolic (DP) intermediates that are subsequently reduced to pipecolic acid (Pip) by the reductase SAR-deficient 4 (SARD4). l-pipecolic acid, which occurs ubiquitously in the plant kingdom, is further N-hydroxylated to the systemic acquired resistance (SAR)-activating metabolite N-hydroxypipecolic acid (NHP) by flavin-dependent monooxygenase1 (FMO1). N-hydroxypipecolic acid induces the expression of a set of major plant immune genes to enhance defense readiness, amplifies resistance responses, acts synergistically with the defense hormone salicylic acid, promotes the hypersensitive cell death response and primes plants for effective immune mobilization in cases of future pathogen challenge. This pathogen-inducible NHP biosynthetic pathway is activated at the transcriptional level and involves feedback amplification. Apart from FMO1, some cytochrome P450 monooxygenases involved in secondary metabolism catalyze N-hydroxylation reactions in plants. In specific taxa, pipecolic acid might also serve as a precursor in the biosynthesis of specialized natural products, leading to C-hydroxylated and otherwise modified piperidine derivatives, including indolizidine alkaloids. Finally, we show that NHP is glycosylated in Arabidopsis to form a hexose-conjugate, and then discuss open questions in Pip/NHP-related research.
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Affiliation(s)
- Michael Hartmann
- Department of Biology, Institute for Molecular Ecophysiology of Plants, Heinrich Heine University, Universitätsstraße 1, D-40225, Düsseldorf, Germany
| | - Jürgen Zeier
- Department of Biology, Institute for Molecular Ecophysiology of Plants, Heinrich Heine University, Universitätsstraße 1, D-40225, Düsseldorf, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich Heine University, Universitätsstraße 1, D-40225, Düsseldorf, Germany
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27
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Pietzner M, Kaul A, Henning AK, Kastenmüller G, Artati A, Lerch MM, Adamski J, Nauck M, Friedrich N. Comprehensive metabolic profiling of chronic low-grade inflammation among generally healthy individuals. BMC Med 2017; 15:210. [PMID: 29187192 PMCID: PMC5708081 DOI: 10.1186/s12916-017-0974-6] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/08/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Inflammation occurs as an immediate protective response of the immune system to a harmful stimulus, whether locally confined or systemic. In contrast, a persisting, i.e., chronic, inflammatory state, even at a low-grade, is a well-known risk factor in the development of common diseases like diabetes or atherosclerosis. In clinical practice, laboratory markers like high-sensitivity C-reactive protein (hsCRP), white blood cell count (WBC), and fibrinogen, are used to reveal inflammatory processes. In order to gain a deeper insight regarding inflammation-related changes in metabolism, the present study assessed the metabolic patterns associated with alterations in inflammatory markers. METHODS Based on mass spectrometry and nuclear magnetic resonance spectroscopy we determined a comprehensive panel of 613 plasma and 587 urine metabolites among 925 apparently healthy individuals. Associations between inflammatory markers, namely hsCRP, WBC, and fibrinogen, and metabolite levels were tested by linear regression analyses controlling for common confounders. Additionally, we tested for a discriminative signature of an advanced inflammatory state using random forest analysis. RESULTS HsCRP, WBC, and fibrinogen were significantly associated with 71, 20, and 19 plasma and 22, 3, and 16 urine metabolites, respectively. Identified metabolites were related to the bradykinin system, involved in oxidative stress (e.g., glutamine or pipecolate) or linked to the urea cycle (e.g., ornithine or citrulline). In particular, urine 3'-sialyllactose was found as a novel metabolite related to inflammation. Prediction of an advanced inflammatory state based solely on 10 metabolites was well feasible (median AUC: 0.83). CONCLUSIONS Comprehensive metabolic profiling confirmed the far-reaching impact of inflammatory processes on human metabolism. The identified metabolites included not only those already described as immune-modulatory but also completely novel patterns. Moreover, the observed alterations provide molecular links to inflammation-associated diseases like diabetes or cardiovascular disorders.
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Affiliation(s)
- Maik Pietzner
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany. .,DZHK (German Centre for Cardiovascular Research), partner site Greifswald, Greifswald, Germany.
| | - Anne Kaul
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany
| | - Ann-Kristin Henning
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Neuherberg, Germany
| | - Anna Artati
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Neuherberg, Germany
| | - Markus M Lerch
- Department of Medicine A, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany
| | - Jerzy Adamski
- Institute of Experimental Genetics, Genome Analysis Center, Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Neuherberg, Germany.,Lehrstuhl für Experimentelle Genetik, Technische Universität München, 85350, Freising-Weihenstephan, Germany
| | - Matthias Nauck
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Greifswald, Greifswald, Germany
| | - Nele Friedrich
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Ferdinand-Sauerbruch-Str. NK, 17475, Greifswald, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Greifswald, Greifswald, Germany
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