51
|
Roy S, Hooiveld GJ, Seehawer M, Caruso S, Heinzmann F, Schneider AT, Frank AK, Cardenas DV, Sonntag R, Luedde M, Trautwein C, Stein I, Pikarsky E, Loosen S, Tacke F, Ringelhan M, Avsaroglu SK, Goga A, Buendia MA, Vucur M, Heikenwalder M, Zucman-Rossi J, Zender L, Roderburg C, Luedde T. microRNA 193a-5p Regulates Levels of Nucleolar- and Spindle-Associated Protein 1 to Suppress Hepatocarcinogenesis. Gastroenterology 2018; 155:1951-1966.e26. [PMID: 30165047 PMCID: PMC6279541 DOI: 10.1053/j.gastro.2018.08.032] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 08/15/2018] [Accepted: 08/18/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS We performed an integrated analysis to identify microRNAs (miRNAs) and messenger RNAs (mRNAs) with altered expression in liver tumors from 3 mouse models of hepatocellular carcinoma (HCC) and human tumor tissues. METHODS We analyzed miRNA and mRNA expression profiles of liver tissues from mice with diethylnitrosamine-induced hepatocarcinogenesis, conditional expression of lymphotoxin alpha and lymphotoxin beta, or inducible expression of a Myc transgene (Tet-O-Myc mice), as well as male C57BL/6 mice (controls). miRNA mimics were expressed and miRNAs and mRNAs were knocked down in human (Huh7, Hep3B, JHH2) hepatoma cell lines; cells were analyzed for viability, proliferation, apoptosis, migration, and invasion. Cells were grown as xenograft tumors in nude mice and analyzed. We combined in silico target gene prediction with mRNA profiles from all 3 mouse models. We quantified miRNA levels in 146 fresh-frozen tissues from patients (125 HCCs, 17 matched nontumor tissues, and 4 liver samples from patients without cancer) and published human data sets and tested correlations with patient survival times using Kaplan-Meier curves and the log-rank test. Levels of NUSAP1 mRNA were quantified in 237 HCCs and 5 nontumor liver samples using the TaqMan assay. RESULTS Levels of the miRNA 193a-5p (MIR193A-5p) were reduced in liver tumors from all 3 mouse tumor models and in human HCC samples, compared with nontumor liver tissues. Expression of a MIR193A-5p mimic in hepatoma cells reduced proliferation, survival, migration, and invasion and their growth as xenograft tumors in nude mice. We found nucleolar and spindle-associated protein 1 (NUSAP1) to be a target of MIR193A-5p; HCC cells and tissues with low levels of MIR193A-5p had increased expression of NUSAP1. Increased levels of NUSAP1 in HCC samples correlated with shorter survival times of patients. Knockdown of NUSAP1 in Huh7 cells reduced proliferation, survival, migration, and growth as xenograft tumors in nude mice. Hydrodynamic tail-vein injections of a small hairpin RNA against NUSAP1 reduced growth of Akt1-Myc-induced tumors in mice. CONCLUSIONS MIR193A-5p appears to prevent liver tumorigenesis by reducing levels of NUSAP1. Levels of MIR193A-5p are reduced in mouse and human HCC cells and tissues, leading to increased levels of NUSAP1, associated with shorter survival times of patients. Integrated analyses of miRNAs and mRNAs in tumors from mouse models can lead to identification of therapeutic targets in humans. The currently reported miRNA and mRNA profiling data have been submitted to the Gene Expression Omnibus (super-series accession number GSE102418).
Collapse
Affiliation(s)
- Sanchari Roy
- Division of Gastroenterology, Hepatology and Hepatobiliary Oncology,Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany
| | - Guido J. Hooiveld
- Nutrition, Metabolism & Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Marco Seehawer
- Department of Internal Medicine VIII, University Hospital Tübingen, 72076 Tübingen, Germany,Department of Physiology I, Institute of Physiology, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | - Stefano Caruso
- Inserm UMR-1162, Functional Genomics of Solid Tumors, University Paris Descartes, University University Paris Diderot, University Paris 13, Labex Immuno-Oncology, Paris, France
| | - Florian Heinzmann
- Department of Internal Medicine VIII, University Hospital Tübingen, 72076 Tübingen, Germany,Department of Physiology I, Institute of Physiology, Eberhard Karls University Tübingen, 72076 Tübingen, Germany
| | | | - Anna K. Frank
- Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany
| | | | - Roland Sonntag
- Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany
| | - Mark Luedde
- Department of Cardiology, University Hospital Kiel, 25105 Kiel, Germany
| | | | - Ilan Stein
- Department of Pathology, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Eli Pikarsky
- Department of Pathology, Hadassah–Hebrew University Medical Center, Jerusalem, Israel
| | - Sven Loosen
- Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany
| | - Frank Tacke
- Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany
| | - Marc Ringelhan
- Technische Universität München, Ismaningerstr. 22, 81675 München
| | - Seda Kilinc Avsaroglu
- Department of Cell and Tissue Biology, University of California, San Francisco, CA 94143-0452
| | - Andrei Goga
- Department of Cell and Tissue Biology, University of California, San Francisco, CA 94143-0452
| | - Marie-Annick Buendia
- Inserm Unit U1193, University Paris-Sud, Paul Brousse Hospital, Villejuif, France
| | - Mihael Vucur
- Division of Gastroenterology, Hepatology and Hepatobiliary Oncology
| | - Mathias Heikenwalder
- Division of Chronic Inflammation and Cancer, German Cancer Research Center (DKFZ), Germany
| | - Jessica Zucman-Rossi
- Inserm UMR-1162, Functional Genomics of Solid Tumors, University Paris Descartes, University University Paris Diderot, University Paris 13, Labex Immuno-Oncology, Paris, France
| | - Lars Zender
- Department of Internal Medicine VIII, University Hospital Tübingen, 72076 Tübingen, Germany,Department of Physiology I, Institute of Physiology, Eberhard Karls University Tübingen, 72076 Tübingen, Germany,Translational Gastrointestinal Oncology Group, German Consortium for Translational Cancer Research (DKTK), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | | | - Tom Luedde
- Division of Gastroenterology, Hepatology and Hepatobiliary Oncology, Aachen Germany; Department of Medicine III, University Hospital RWTH Aachen, Aachen Germany.
| |
Collapse
|
52
|
Ratter JM, Rooijackers HMM, Hooiveld GJ, Hijmans AGM, de Galan BE, Tack CJ, Stienstra R. In vitro and in vivo Effects of Lactate on Metabolism and Cytokine Production of Human Primary PBMCs and Monocytes. Front Immunol 2018; 9:2564. [PMID: 30483253 PMCID: PMC6240653 DOI: 10.3389/fimmu.2018.02564] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 10/17/2018] [Indexed: 12/24/2022] Open
Abstract
Lactate, the end product of anaerobic glycolysis, is produced in high amounts by innate immune cells during inflammatory activation. Although immunomodulating effects of lactate have been reported, evidence from human studies is scarce. Here we show that expression of genes involved in lactate metabolism and transport is modulated in human immune cells during infection and upon inflammatory activation with TLR ligands in vitro, indicating an important role for lactate metabolism in inflammation. Extracellular lactate induces metabolic reprogramming in innate immune cells, as evidenced by reduced glycolytic and increased oxidative rates of monocytes immediately after exposure to lactate. A short-term infusion of lactate in humans in vivo increased ex vivo glucose consumption of PBMCs, but effects on metabolic rates and cytokine production were limited. Interestingly, long-term treatment with lactate ex vivo, reflecting pathophysiological conditions in local microenvironments such as tumor or adipose tissue, significantly modulated cytokine production with predominantly anti-inflammatory effects. We found time- and stimuli-dependent effects of extracellular lactate on cytokine production, further emphasizing the complex interplay between metabolism and immune cell function. Together, our findings reveal lactate as a modulator of immune cell metabolism which translates to reduced inflammation and may ultimately function as a negative feedback signal to prevent excessive inflammatory responses.
Collapse
Affiliation(s)
- Jacqueline M Ratter
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Hanne M M Rooijackers
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Guido J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Anneke G M Hijmans
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Bastiaan E de Galan
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Cees J Tack
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
| | - Rinke Stienstra
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| |
Collapse
|
53
|
Islam MA, Hooiveld GJEJ, van den Berg JHJ, van der Velpen V, Murk AJ, Rietjens IMCM, van Leeuwen FXR. Soy supplementation: Impact on gene expression in different tissues of ovariectomized rats and evaluation of the rat model to predict (post)menopausal health effect. Toxicol Rep 2018; 5:1087-1097. [PMID: 30425930 PMCID: PMC6222031 DOI: 10.1016/j.toxrep.2018.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 09/29/2018] [Accepted: 10/18/2018] [Indexed: 11/06/2022] Open
Abstract
The usefulness of PBMC gene expressions as a surrogate tissue for risk assessment is questionable. SIF in a dose of 2 mg/kg b.w/day is not able to influence ERGs in target tissues such as breast and uterus. Plasma concentrations of SIF after 8 weeks oral exposure similar as the recommended dose for humans do not proliferate cells in in vitro cellular models. The ovariectomized rat is probably not a good model to predict human risk or benefit assessment of SIF in human.
This toxicogenomic study was conducted to predict (post)menopausal human health effects of commercial soy supplementation using ovariectomized rats as a model. Different target tissues (i.e. breast, uterus and sternum) and non-target tissues (i.e. peripheral blood mononuclear cells (PBMC), adipose and liver) of ovariectomized F344 rats exposed to a commercially available soy supplement for eight weeks, were investigated. Changes in gene expression in these tissues were analysed using whole-genome microarray analysis. No correlation in changes in gene expression were observed among different tissues, indicating tissue specific effects of soy isoflavone supplementation. Out of 87 well-established estrogen responsive genes (ERGs), only 19 were found to be significantly regulated (p < 0.05) in different tissues, particularly in liver, adipose and uterus tissues. Surprisingly, no ERGs were significantly regulated in estrogen sensitive breast and sternum tissues. The changes in gene expression in PBMC and adipose tissue in rats were compared with those in (post)menopausal female volunteers who received the same supplement in a similar oral dose and exposure duration in human intervention studies. No correlation in changes in gene expression between rats and humans was observed. Although receiving a similar dose, in humans the plasma levels expressed as total free aglycones were several folds higher than in the rat. Therefore, the overall results in young ovariectomized female F344 rats indicated that using rat transcriptomic data does not provide a suitable model for human risk or benefit analysis of soy isoflavone supplementation.
Collapse
Affiliation(s)
- Mohammed A Islam
- Division of Toxicology, Wageningen University, Stippeneng 4, 6708 WE Wageningen, the Netherlands.,Department of Agricultural Chemistry, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Guido J E J Hooiveld
- Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703 HE Wageningen, the Netherlands
| | | | - Vera van der Velpen
- Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703 HE Wageningen, the Netherlands.,Metabolomics Service and Research Unit, Faculty of Biology and Medicine, University of Lausanne, Switzerland
| | - Albertinka J Murk
- Division of Toxicology, Wageningen University, Stippeneng 4, 6708 WE Wageningen, the Netherlands.,Sub-department of Environmental Technology, Wageningen University, the Netherlands
| | - Ivonne M C M Rietjens
- Division of Toxicology, Wageningen University, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - F X Rolaf van Leeuwen
- Division of Toxicology, Wageningen University, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| |
Collapse
|
54
|
Leal LN, Romao JM, Hooiveld GJ, Soberon F, Berends H, Boekshoten MV, Van Amburgh ME, Martín-Tereso J, Steele MA. Nutrient supply alters transcriptome regulation in adipose tissue of pre-weaning Holstein calves. PLoS One 2018; 13:e0201929. [PMID: 30080895 PMCID: PMC6078305 DOI: 10.1371/journal.pone.0201929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/24/2018] [Indexed: 01/06/2023] Open
Abstract
Performance of dairy cows can be influenced by early life nutrient supply. Adipose tissue is diet sensitive and an important component in that process as it is involved in the regulation of energetic, reproductive and immunological functions. However, it is not clear how early life nutrition alters the molecular regulation of adipose tissue in calves and potentially adult individuals. This study aimed at determining how differences in pre-weaning nutrient supply alter gene expression profiles and physiology in omental adipose tissue. A total of 12 female Holstein calves were fed two levels of milk replacer supply: a restricted amount of 11.72 MJ of metabolizable energy (ME) intake per day (n = 6) or an enhanced amount of 1.26 MJ ME intake per kg of metabolic body weight (BW0.75), resulting in supply from 17.58 to 35.17 MJ ME intake per day (n = 6). All calves had ad libitum access to a commercial calf starter and water. Analysis of the transcriptome profiles at 54 ± 2 days of age revealed that a total of 396 out of 19,968 genes were differentially expressed (DE) between groups (p < 0.001, FDR < 0.1). The directional expression of DE genes through Ingenuity Pathway Analysis showed that an enhanced nutrient supply alters adipose tissue physiology of pre-weaned calves. Several biological functions were increased (Z-score > +2), including Lipid Metabolism (Fatty Acid Metabolism), Cell Cycle (Entry into Interphase, Interphase, Mitosis and Cell Cycle Progression), Cellular Assembly and Organization (Cytoskeleton Formation and Cytoplasm Development) and Molecular Transport (Transport of Carboxylic Acid). These changes were potentially orchestrated by the activation/inhibition of 17 upstream regulators genes. Our findings indicate that adipose tissue of calves under an enhanced nutrient supply is physiologically distinct from restricted calves due to an increased development/expansion rate and also a higher metabolic activity through increased fatty acid metabolism.
Collapse
Affiliation(s)
- Leonel N. Leal
- Trouw Nutrition R&D, Amersfoort, Utrecht, the Netherlands
- * E-mail: (LNL); (MAS)
| | - Josue M. Romao
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Guido J. Hooiveld
- Nutrition, Metabolomics and Genomics group, Division of Human Nutrition, Wageningen University, Wageningen, Gelderland, the Netherlands
| | - Fernando Soberon
- Trouw Nutrition USA, Highland, Illinois, United States of America
| | - Harma Berends
- Trouw Nutrition R&D, Amersfoort, Utrecht, the Netherlands
| | - Mark V. Boekshoten
- Nutrition, Metabolomics and Genomics group, Division of Human Nutrition, Wageningen University, Wageningen, Gelderland, the Netherlands
| | - Michael E. Van Amburgh
- Department of Animal Science, Cornell University, Ithaca, New York, United States of America
| | | | - Michael A. Steele
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
- * E-mail: (LNL); (MAS)
| |
Collapse
|
55
|
Alsayyari AA, Pan X, Dalm C, van der Veen JW, Vriezen N, Hageman JA, Wijffels RH, Martens DE. Transcriptome analysis for the scale-down of a CHO cell fed-batch process. J Biotechnol 2018; 279:61-72. [DOI: 10.1016/j.jbiotec.2018.05.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/21/2018] [Accepted: 05/21/2018] [Indexed: 11/30/2022]
|
56
|
Pan X, Alsayyari AA, Dalm C, Hageman JA, Wijffels RH, Martens DE. Transcriptome Analysis of CHO Cell Size Increase During a Fed-Batch Process. Biotechnol J 2018; 14:e1800156. [PMID: 30024106 DOI: 10.1002/biot.201800156] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/11/2018] [Indexed: 12/14/2022]
Abstract
In a Chinese Hamster Ovary (CHO) cell fed-batch process, arrest of cell proliferation and an almost threefold increase in cell size occurred, which is associated with an increase in cell-specific productivity. In this study, transcriptome analysis is performed to identify the molecular mechanisms associated with this. Cell cycle analysis reveals that the cells are arrested mainly in the G0 /G1 phase. The cell cycle arrest is associated with significant up-regulation of cyclin-dependent kinases inhibitors (CDKNs) and down-regulation of cyclin-dependent kinases (CDKs) and cyclins. During the cell size increase phase, the gene expression of the upstream pathways of mechanistic target of rapamycin (mTOR), which is related to the extracellular growth factor, cytokine, and amino acid conditions, shows a strongly synchronized pattern to promote the mTOR activity. The downstream genes of mTOR also show a synchronized pattern to stimulate protein translation and lipid synthesis. The results demonstrate that cell cycle inhibition and stimulated mTOR activity at the transcriptome level are related to CHO cell size increase. The cell size increase is related to the extracellular nutrient conditions through a number of cascade pathways, indicating that by rational design of media and feeds, CHO cell size can be manipulated during culture processes, which may further improve cell growth and specific productivity.
Collapse
Affiliation(s)
- Xiao Pan
- Bioprocess Engineering, Wageningen University and Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - Abdulaziz A Alsayyari
- Bioprocess Engineering, Wageningen University and Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| | - Ciska Dalm
- Upstream Process Development, Synthon Biopharmaceuticals BV, PO Box 7071, 6503 GN, Nijmegen, The Netherlands
| | - Jos A Hageman
- Biometris, Wageningen University and Research, P.O. Box 16, 6700 AA, Wageningen, The Netherlands
| | - René H Wijffels
- Bioprocess Engineering, Wageningen University and Research, PO Box 16, 6700 AA, Wageningen, The Netherlands.,Faculty of Biosciences and Aquaculture, Nord University, N-8049, Bodø, Norway
| | - Dirk E Martens
- Bioprocess Engineering, Wageningen University and Research, PO Box 16, 6700 AA, Wageningen, The Netherlands
| |
Collapse
|
57
|
Elderman M, Hugenholtz F, Belzer C, Boekschoten M, van Beek A, de Haan B, Savelkoul H, de Vos P, Faas M. Sex and strain dependent differences in mucosal immunology and microbiota composition in mice. Biol Sex Differ 2018; 9:26. [PMID: 29914546 PMCID: PMC6006852 DOI: 10.1186/s13293-018-0186-6] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 06/05/2018] [Indexed: 12/12/2022] Open
Abstract
Background A dysbiosis in the intestinal microbiome plays a role in the pathogenesis of several immunological diseases. These diseases often show a sex bias, suggesting sex differences in immune responses and in the intestinal microbiome. We hypothesized that sex differences in immune responses are associated with sex differences in microbiota composition. Methods Fecal microbiota composition (MITchip), mRNA expression in intestinal tissue (microarray), and immune cell populations in mesenteric lymph nodes (MLNs) were studied in male and female mice of two mouse strains (C57B1/6OlaHsd and Balb/cOlaHsd). Transcriptomics and microbiota data were combined to identify bacterial species which may potentially be related to sex-specific differences in intestinal immune related genes. Results We found clear sex differences in intestinal microbiota species, diversity, and richness in healthy mice. However, the nature of the sex effects appeared to be determined by the mouse strain as different bacterial species were enriched in males and females of the two strains. For example, Lactobacillus plantarum and Bacteroides distasonis were enriched in B6 females as compared to B6 males, while Bifidobacterium was enriched BALB/c females as compared to BALB/c males. The strain-dependent sex effects were also observed in the expression of immunological genes in the colon. We found that the abundance of various bacteria (e.g., Clostridium leptum et rel.) which were enriched in B6 females positively correlated with the expression of several genes (e.g., Il-2rb, Ccr3, and Cd80) which could be related to immunological functions, such as inflammatory responses and migration of leukocytes. The abundance of several bacteria (e.g., Faecalibacterium prausnitzii et rel. and Coprobacillus et rel.- Clostridium ramosum et rel.) which were enriched in BALB/c males positively correlated to the expression of several genes (e.g., Apoe, Il-1b, and Stat4) related to several immunological functions, such as proliferation and quantity of lymphocytes. The net result was the same, since both mouse strains showed similar sex induced differences in immune cell populations in the MLNs. Conclusions Our data suggests a correlation between microbiota and intestinal immune populations in a sex and strain-specific way. These findings may contribute to the development of more sex and genetic specific treatments for intestinal-related disorders. Electronic supplementary material The online version of this article (10.1186/s13293-018-0186-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, the Netherlands. .,Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, 9713, GZ, Groningen, the Netherlands.
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, the Netherlands.,Laboratory of Microbiology, Wageningen University and Research, 6703, WE, Wageningen, the Netherlands
| | - Clara Belzer
- Top Institute Food and Nutrition, Wageningen, the Netherlands.,Laboratory of Microbiology, Wageningen University and Research, 6703, WE, Wageningen, the Netherlands
| | - Mark Boekschoten
- Top Institute Food and Nutrition, Wageningen, the Netherlands.,Division of Human Nutrition, Wageningen University and Research, 6703, WE, Wageningen, the Netherlands
| | - Adriaan van Beek
- Top Institute Food and Nutrition, Wageningen, the Netherlands.,Cell Biology and Immunology, Wageningen University and Research, 6708 WD, Wageningen, the Netherlands
| | - Bart de Haan
- Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, 9713, GZ, Groningen, the Netherlands
| | - Huub Savelkoul
- Cell Biology and Immunology, Wageningen University and Research, 6708 WD, Wageningen, the Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, the Netherlands.,Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, 9713, GZ, Groningen, the Netherlands
| | - Marijke Faas
- Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, 9713, GZ, Groningen, the Netherlands.,Department of Obstetrics and Gynecology, University of Groningen and University Medical Centre Groningen, 9713, GZ, Groningen, the Netherlands
| |
Collapse
|
58
|
de la Rosa Rodriguez MA, Sugahara G, Hooiveld GJEJ, Ishida Y, Tateno C, Kersten S. The whole transcriptome effects of the PPARα agonist fenofibrate on livers of hepatocyte humanized mice. BMC Genomics 2018; 19:443. [PMID: 29879903 PMCID: PMC5991453 DOI: 10.1186/s12864-018-4834-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/29/2018] [Indexed: 01/08/2023] Open
Abstract
Background The role of PPARα in gene regulation in mouse liver is well characterized. However, less is known about the role of PPARα in human liver. The aim of the present study was to better characterize the impact of PPARα activation on gene regulation in human liver. To that end, chimeric mice containing hepatocyte humanized livers were given an oral dose of 300 mg/kg fenofibrate daily for 4 days. Livers were collected and analyzed by hematoxilin and eosin staining, qPCR, and transcriptomics. Transcriptomics data were compared with existing datasets on PPARα activation in normal mouse liver, human primary hepatocytes, and human precision cut liver slices. Results Of the different human liver models, the gene expression profile of hepatocyte humanized livers most closely resembled actual human liver. In the hepatocyte humanized mouse livers, the human hepatocytes exhibited excessive lipid accumulation. Fenofibrate increased the size of the mouse but not human hepatocytes, and tended to reduce steatosis in the human hepatocytes. Quantitative PCR indicated that induction of PPARα targets by fenofibrate was less pronounced in the human hepatocytes than in the residual mouse hepatocytes. Transcriptomics analysis indicated that, after filtering, a total of 282 genes was significantly different between fenofibrate- and control-treated mice (P < 0.01). 123 genes were significantly lower and 159 genes significantly higher in the fenofibrate-treated mice, including many established PPARα targets such as FABP1, HADHB, HADHA, VNN1, PLIN2, ACADVL and HMGCS2. According to gene set enrichment analysis, fenofibrate upregulated interferon/cytokine signaling-related pathways in hepatocyte humanized liver, but downregulated these pathways in normal mouse liver. Also, fenofibrate downregulated pathways related to DNA synthesis in hepatocyte humanized liver but not in normal mouse liver. Conclusion The results support the major role of PPARα in regulating hepatic lipid metabolism, and underscore the more modest effect of PPARα activation on gene regulation in human liver compared to mouse liver. The data suggest that PPARα may have a suppressive effect on DNA synthesis in human liver, and a stimulatory effect on interferon/cytokine signalling.
Collapse
Affiliation(s)
- Montserrat A de la Rosa Rodriguez
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Go Sugahara
- Research and Development Department, PhoenixBio, Co., Ltd, 3-4-1 Kagamiyama, Higashi-, Hiroshima, Japan
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Yuji Ishida
- Research and Development Department, PhoenixBio, Co., Ltd, 3-4-1 Kagamiyama, Higashi-, Hiroshima, Japan.,Liver Research Project Center, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, Japan
| | - Chise Tateno
- Research and Development Department, PhoenixBio, Co., Ltd, 3-4-1 Kagamiyama, Higashi-, Hiroshima, Japan.,Liver Research Project Center, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, Japan
| | - Sander Kersten
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands.
| |
Collapse
|
59
|
Most J, Warnke I, Boekschoten MV, Jocken JWE, de Groot P, Friedel A, Bendik I, Goossens GH, Blaak EE. The effects of polyphenol supplementation on adipose tissue morphology and gene expression in overweight and obese humans. Adipocyte 2018; 7:190-196. [PMID: 29786471 PMCID: PMC6224187 DOI: 10.1080/21623945.2018.1469942] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Dietary polyphenols have beneficial effects on adipose tissue mass and function in rodents, but human studies are scarce. In a randomized, placebo-controlled study, 25 (10 women) overweight and obese humans received a combination of the polyphenols epigallocatechin-gallate and resveratrol (282 mg/d, 80 mg/d, respectively, EGCG+RES, n = 11) or placebo (PLA, n = 14) supplementation for 12 weeks. Abdominal subcutaneous adipose tissue (SAT) biopsies were collected for assessment of adipocyte morphology and micro-array analysis. EGCG+RES had no effects on adipocyte size and distribution compared with PLA. However, we identified pathways contributing to adipogenesis, cell cycle and apoptosis were significantly downregulated by EGCG+RES versus PLA. Furthermore, EGCG+RES significantly decreased expression of pathways related to energy metabolism, oxidative stress, inflammation, and immune defense as compared with PLA. In conclusion, the SAT gene expression profile indicates a reduced cell turnover after 12-week EGCG+RES in overweight-obese subjects. It remains to be elucidated whether these alterations translate into long-term metabolic effects.
Collapse
Affiliation(s)
- Jasper Most
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, the Netherlands
| | - Ines Warnke
- DSM Nutritional Products Ltd., Research and Development, Human Nutrition and Health; Basel, Switzerland
| | - Mark V. Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Johan W. E. Jocken
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, the Netherlands
| | - Philip de Groot
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Angelika Friedel
- DSM Nutritional Products Ltd., Research and Development, Human Nutrition and Health; Basel, Switzerland
| | - Igor Bendik
- DSM Nutritional Products Ltd., Research and Development, Human Nutrition and Health; Basel, Switzerland
| | - Gijs H. Goossens
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, the Netherlands
| | - Ellen E. Blaak
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, the Netherlands
| |
Collapse
|
60
|
Esser D, Geleijnse JM, Matualatupauw JC, Dower JI, Kromhout D, Hollman PCH, Afman LA. Pure flavonoid epicatechin and whole genome gene expression profiles in circulating immune cells in adults with elevated blood pressure: A randomised double-blind, placebo-controlled, crossover trial. PLoS One 2018; 13:e0194229. [PMID: 29672527 PMCID: PMC5908087 DOI: 10.1371/journal.pone.0194229] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 02/23/2018] [Indexed: 02/05/2023] Open
Abstract
Cocoa consumption has beneficial cardiometabolic effects, but underlying mechanisms remain unclear. Epicatechin, the cocoa major monomeric flavan-3-ol, is considered to contribute to these cardio-protective effects. We investigated effects of pure epicatechin supplementation on gene expression profiles of immune cells in humans. In a double blind, placebo-controlled cross-over trial, 32 (pre)hypertensive subjects aged 30 to 80, received two 4-week interventions, i.e. epicatechin (100mg/day) or placebo with a 4-week wash-out between interventions. Gene expression profiles of peripheral blood mononuclear cells were determined before and after both interventions. Epicatechin regulated 1180 genes, of which 234 differed from placebo. Epicatechin upregulated gene sets involved in transcription and tubulin folding and downregulated gene sets involved in inflammation, PPAR signalling and adipogenesis. Several negatively enriched genes within these gene sets were involved in insulin signalling. Most inhibited upstream regulators within the epicatechin intervention were cytokines or involved in inflammation. No upstream regulators were identified compared to placebo. Epicatechin, a cocoa flavan-3-ol, reduces gene expression involved in inflammation, PPAR-signalling and adipogenesis in immune cells. Effects were mild but our findings increase our understanding and provide new leads on how epicatechin rich products like cocoa may affect immune cells and exert cardiometabolic protective effects.
Collapse
Affiliation(s)
- Diederik Esser
- Top Institute Food and Nutrition, Wageningen, The Netherlands
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Johanna M. Geleijnse
- Top Institute Food and Nutrition, Wageningen, The Netherlands
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | | | - James I. Dower
- Top Institute Food and Nutrition, Wageningen, The Netherlands
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Daan Kromhout
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Peter C. H. Hollman
- Top Institute Food and Nutrition, Wageningen, The Netherlands
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Lydia A. Afman
- The Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
- * E-mail:
| |
Collapse
|
61
|
Smolders L, Mensink RP, Boekschoten MV, de Ridder RJ, Plat J. Theobromine does not affect postprandial lipid metabolism and duodenal gene expression, but has unfavorable effects on postprandial glucose and insulin responses in humans. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2017.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
62
|
Kok DEG, Rusli F, van der Lugt B, Lute C, Laghi L, Salvioli S, Picone G, Franceschi C, Smidt H, Vervoort J, Kampman E, Müller M, Steegenga WT. Lifelong calorie restriction affects indicators of colonic health in aging C57Bl/6J mice. J Nutr Biochem 2018; 56:152-164. [PMID: 29571009 DOI: 10.1016/j.jnutbio.2018.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/03/2017] [Accepted: 01/05/2018] [Indexed: 12/21/2022]
Abstract
Diminished colonic health is associated with various age-related pathologies. Calorie restriction (CR) is an effective strategy to increase healthy lifespan, although underlying mechanisms are not fully elucidated. Here, we report the effects of lifelong CR on indicators of colonic health in aging C57Bl/6J mice. Compared to an ad libitum control and moderate-fat diet, 30% energy reduction was associated with attenuated immune- and inflammation-related gene expression in the colon. Furthermore, expression of genes involved in lipid metabolism was higher upon CR, which may point towards efficient regulation of energy metabolism. The relative abundance of bacteria considered beneficial to colonic health, such as Bifidobacterium and Lactobacillus, increased in the mice exposed to CR for 28 months as compared to the other diet groups. We found lower plasma levels of interleukin-6 and lower levels of various metabolites, among which are bile acids, in the colonic luminal content of CR-exposed mice as compared to the other diet groups. Switching from CR to an ad libitum moderate-fat diet at old age (24 months) revealed remarkable phenotypic plasticity in terms of gene expression, microbiota composition and metabolite levels, although expression of a subset of genes remained CR-associated. This study demonstrated in a comprehensive way that CR affects indicators of colonic health in aging mice. Our findings provide unique leads for further studies that need to address optimal and feasible strategies for prolonged energy deprivation, which may contribute to healthy aging.
Collapse
Affiliation(s)
- Dieuwertje E G Kok
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Fenni Rusli
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Benthe van der Lugt
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Carolien Lute
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Luca Laghi
- Centre of Foodomics, Department of Agro-Food Science and Technology, University of Bologna, 47521, Cesena, (FC), Italy.
| | - Stefano Salvioli
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40126, Bologna, Italy.
| | - Gianfranco Picone
- Centre of Foodomics, Department of Agro-Food Science and Technology, University of Bologna, 47521, Cesena, (FC), Italy.
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Speciality Medicine, University of Bologna, 40126, Bologna, Italy.
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Jacques Vervoort
- Laboratory of Biochemistry, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Ellen Kampman
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| | - Michael Müller
- Nutrigenomics and Systems Nutrition Group, Norwich Medical School, University of East Anglia, NR4 7UQ, Norwich, UK.
| | - Wilma T Steegenga
- Division of Human Nutrition, Wageningen University & Research, 6708 WE, Wageningen, the Netherlands.
| |
Collapse
|
63
|
Ugolini M, Gerhard J, Burkert S, Jensen KJ, Georg P, Ebner F, Volkers SM, Thada S, Dietert K, Bauer L, Schäfer A, Helbig ET, Opitz B, Kurth F, Sur S, Dittrich N, Gaddam S, Conrad ML, Benn CS, Blohm U, Gruber AD, Hutloff A, Hartmann S, Boekschoten MV, Müller M, Jungersen G, Schumann RR, Suttorp N, Sander LE. Recognition of microbial viability via TLR8 drives TFH cell differentiation and vaccine responses. Nat Immunol 2018; 19:386-396. [DOI: 10.1038/s41590-018-0068-4] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 02/15/2018] [Indexed: 11/09/2022]
|
64
|
Defour M, Dijk W, Ruppert P, Nascimento EBM, Schrauwen P, Kersten S. The Peroxisome Proliferator-Activated Receptor α is dispensable for cold-induced adipose tissue browning in mice. Mol Metab 2018; 10:39-54. [PMID: 29455954 PMCID: PMC5985232 DOI: 10.1016/j.molmet.2018.01.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/25/2018] [Accepted: 01/31/2018] [Indexed: 11/23/2022] Open
Abstract
Objective Chronic cold exposure causes white adipose tissue (WAT) to adopt features of brown adipose tissue (BAT), a process known as browning. Previous studies have hinted at a possible role for the transcription factor Peroxisome Proliferator-Activated Receptor alpha (PPARα) in cold-induced browning. Here we aimed to investigate the importance of PPARα in driving transcriptional changes during cold-induced browning in mice. Methods Male wildtype and PPARα−/− mice were housed at thermoneutrality (28 °C) or cold (5 °C) for 10 days. Whole genome expression analysis was performed on inguinal WAT. In addition, other analyses were carried out. Whole genome expression data of livers of wildtype and PPARα−/− mice fasted for 24 h served as positive control for PPARα-dependent gene regulation. Results Cold exposure increased food intake and decreased weight of BAT and WAT to a similar extent in wildtype and PPARα−/− mice. Except for plasma non-esterified fatty acids, none of the cold-induced changes in plasma metabolites were dependent on PPARα genotype. Histological analysis of inguinal WAT showed clear browning upon cold exposure but did not reveal any morphological differences between wildtype and PPARα−/− mice. Transcriptomics analysis of inguinal WAT showed a marked effect of cold on overall gene expression, as revealed by principle component analysis and hierarchical clustering. However, wildtype and PPARα−/− mice clustered together, even after cold exposure, indicating a similar overall gene expression profile in the two genotypes. Pathway analysis revealed that cold upregulated pathways involved in energy usage, oxidative phosphorylation, and fatty acid β-oxidation to a similar extent in wildtype and PPARα−/− mice. Furthermore, cold-mediated induction of genes related to thermogenesis such as Ucp1, Elovl3, Cox7a1, Cox8, and Cidea, as well as many PPAR target genes, was similar in wildtype and PPARα−/− mice. Finally, pharmacological PPARα activation had a minimal effect on expression of cold-induced genes in murine WAT. Conclusion Cold-induced changes in gene expression in inguinal WAT are unaltered in mice lacking PPARα, indicating that PPARα is dispensable for cold-induced browning. Chronic cold markedly induces PPARα expression in inguinal fat. Cold exposure causes transient hypothermia in PPARα−/− mice. Chronic cold-induced changes in gene expression in inguinal fat are unaltered in PPARα−/− mice. Chronic cold does not lead to PPARα activation in liver.
Collapse
Affiliation(s)
- Merel Defour
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Wieneke Dijk
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Philip Ruppert
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Emmani B M Nascimento
- Department of Human Biology and Human Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Patrick Schrauwen
- Department of Human Biology and Human Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands.
| |
Collapse
|
65
|
Mace TA, Shakya R, Pitarresi JR, Swanson B, McQuinn CW, Loftus S, Nordquist E, Cruz-Monserrate Z, Yu L, Young G, Zhong X, Zimmers TA, Ostrowski MC, Ludwig T, Bloomston M, Bekaii-Saab T, Lesinski GB. IL-6 and PD-L1 antibody blockade combination therapy reduces tumour progression in murine models of pancreatic cancer. Gut 2018; 67:320-332. [PMID: 27797936 PMCID: PMC5406266 DOI: 10.1136/gutjnl-2016-311585] [Citation(s) in RCA: 359] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 09/13/2016] [Accepted: 10/03/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Limited efficacy of immune checkpoint inhibitors in pancreatic ductal adenocarcinoma (PDAC) has prompted investigation into combination therapy. We hypothesised that interleukin 6 (IL-6) blockade would modulate immunological features of PDAC and enhance the efficacy of anti-programmed death-1-ligand 1 (PD-L1) checkpoint inhibitor therapy. DESIGN Transcription profiles and IL-6 secretion from primary patient-derived pancreatic stellate cells (PSCs) were analyzed via Nanostring and immunohistochemistry, respectively. In vivo efficacy and mechanistic studies were conducted with antibodies (Abs) targeting IL-6, PD-L1, CD4 or CD8 in subcutaneous or orthotopic models using Panc02, MT5 or KPC-luc cell lines; and the aggressive, genetically engineered PDAC model (KrasLSL-G12D, Trp53LSL-R270H, Pdx1-cre, Brca2F/F (KPC-Brca2 mice)). Systemic and local changes in immunophenotype were measured by flow cytometry or immunohistochemical analysis. RESULTS PSCs (n=12) demonstrated prominent IL-6 expression, which was localised to stroma of tumours. Combined IL-6 and PD-L1 blockade elicited efficacy in mice bearing subcutaneous MT5 (p<0.02) and Panc02 tumours (p=0.046), which was accompanied by increased intratumoural effector T lymphocytes (CD62L-CD44-). CD8-depleting but not CD4-depleting Abs abrogated the efficacy of combined IL-6 and PD-L1 blockade in mice bearing Panc02 tumours (p=0.0016). This treatment combination also elicited significant antitumour activity in mice bearing orthotopic KPC-luc tumours and limited tumour progression in KPC-Brca2 mice (p<0.001). Histological analysis revealed increased T-cell infiltration and reduced α-smooth muscle actin cells in tumours from multiple models. Finally, IL-6 and PD-L1 blockade increased overall survival in KPC-Brca2 mice compared with isotype controls (p=0.0012). CONCLUSIONS These preclinical results indicate that targeted inhibition of IL-6 may enhance the efficacy of anti-PD-L1 in PDAC.
Collapse
Affiliation(s)
- Thomas A. Mace
- Divisions of Medical Oncology and Gastroenterology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210
| | - Reena Shakya
- Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Jason R. Pitarresi
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Benjamin Swanson
- Department of Pathology, The Ohio State University, Columbus, OH 43210
| | - Christopher W. McQuinn
- Divisions of Medical Oncology and Gastroenterology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210
| | - Shannon Loftus
- Divisions of Medical Oncology and Gastroenterology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210
| | - Emily Nordquist
- Divisions of Medical Oncology and Gastroenterology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210
| | - Zobeida Cruz-Monserrate
- Divisions of Medical Oncology and Gastroenterology, Department of Internal Medicine, The Ohio State University, Columbus, OH 43210
| | - Lianbo Yu
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH 43210
| | - Gregory Young
- Center for Biostatistics, The Ohio State University, Columbus, OH 43210
| | - Xiaoling Zhong
- Department of Surgery (Indiana University) and IU Simon Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Teresa A. Zimmers
- Department of Surgery (Indiana University) and IU Simon Cancer Center, The Ohio State University, Columbus, OH 43210
| | - Michael C. Ostrowski
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Thomas Ludwig
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, OH 43210
| | - Mark Bloomston
- Division of Surgical Oncology, Department of Surgery, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, Columbus, OH 43210
| | | | - Gregory B. Lesinski
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University
| |
Collapse
|
66
|
Smolders L, Mensink RP, Boekschoten MV, de Ridder RJJ, Plat J. The acute effects on duodenal gene expression in healthy men following consumption of a low-fat meal enriched with theobromine or fat. Sci Rep 2018; 8:1700. [PMID: 29374228 PMCID: PMC5785967 DOI: 10.1038/s41598-018-20068-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 01/12/2018] [Indexed: 11/09/2022] Open
Abstract
Increasing apoA-I synthesis may improve HDL functionality and lower CVD risk. As theobromine and fat increase fasting apoA-I concentrations, and the intestine is involved in apoA-I production, the acute effects of both were studied on duodenal gene transcription to better understand underlying mechanisms. In this crossover study, 8 healthy men received once a low fat (LF) meal, a LF meal plus theobromine (850 mg), or a high fat (HF) meal. Five hours after meal intake duodenal biopsies were taken for microarray analysis. Theobromine and HF consumption did not change duodenal apoA-I expression. Theobromine did not change gene expression related to lipid and cholesterol metabolism, whereas those related to glycogen/glucose breakdown were downregulated. HF consumption increased gene expression related to lipid and cholesterol uptake and transport, and to glucose storage, while it decreased those related to glucose uptake. Furthermore, genes related to inflammation were upregulated, but inflammation markers in plasma were not changed. In healthy men, acute theobromine and fat consumption did not change duodenal apoA-I mRNA, but inhibited expression of genes related to glucose metabolism. Furthermore, HF intake activated in the duodenum expression of genes related to lipid and cholesterol metabolism and to inflammation.
Collapse
Affiliation(s)
- Lotte Smolders
- Department of Human Biology and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, Maastricht, PO Box 616, 6200 MD, The Netherlands
| | - Ronald P Mensink
- Department of Human Biology and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, Maastricht, PO Box 616, 6200 MD, The Netherlands
| | - Mark V Boekschoten
- Nutrition, Metabolism and Genomics Group, Wageningen University, Wageningen, The Netherlands
| | - Rogier J J de Ridder
- Division of Gastroenterology and Hepatology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jogchum Plat
- Department of Human Biology and Movement Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, Maastricht, PO Box 616, 6200 MD, The Netherlands.
| |
Collapse
|
67
|
Shi Q, Fijten RR, Spina D, Riffo Vasquez Y, Arlt VM, Godschalk RW, Van Schooten FJ. Altered gene expression profiles in the lungs of benzo[a]pyrene-exposed mice in the presence of lipopolysaccharide-induced pulmonary inflammation. Toxicol Appl Pharmacol 2017; 336:8-19. [PMID: 28987381 PMCID: PMC5703654 DOI: 10.1016/j.taap.2017.09.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 09/22/2017] [Accepted: 09/29/2017] [Indexed: 12/13/2022]
Abstract
Patients with inflammatory lung diseases are often additionally exposed to polycyclic aromatic hydrocarbons like B[a]P and B[a]P-induced alterations in gene expression in these patients may contribute to the development of lung cancer. Mice were intra-nasally treated with lipopolysaccharide (LPS, 20μg/mouse) to induce pulmonary inflammation and subsequently exposed to B[a]P (0.5mg/mouse) by intratracheal instillation. Gene expression changes were analyzed in mouse lungs by RNA microarrays. Analysis of genes that are known to be involved in the cellular response to B[a]P indicated that LPS significantly inhibited gene expression of various enzymes linked to B[a]P metabolism, which was confirmed by phenotypic analyses of enzyme activity. Ultimately, these changes resulted in higher levels of B[a]P-DNA adducts in the lungs of mice exposed to B[a]P with prior LPS treatment compared to the lungs of mice exposed to B[a]P alone. Using principle component analysis (PCA), we found that of all the genes that were significantly altered in their expression, those that were able to separate the different exposure conditions were predominantly related to immune-response. Moreover, an overall analysis of differentially expressed genes indicated that cell-cell adhesion and cell-cell communication was inhibited in lungs of mice that received both B[a]P and LPS. Our results indicate that pulmonary inflammation increased the genotoxicity of B[a]P via inhibition of both phase I and II metabolism. Therefore, inflammation could be a critical contributor to B[a]P-induced carcinogenesis in humans.
Collapse
Affiliation(s)
- Q Shi
- Department of Toxicology & Pharmacology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - R R Fijten
- Department of Toxicology & Pharmacology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - D Spina
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Y Riffo Vasquez
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - V M Arlt
- Analytical and Environmental Sciences Division, MRC-PHE Centre for Environmental & Health, King's College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - R W Godschalk
- Department of Toxicology & Pharmacology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands.
| | - F J Van Schooten
- Department of Toxicology & Pharmacology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| |
Collapse
|
68
|
Experimental preeclampsia in rats affects vascular gene expression patterns. Sci Rep 2017; 7:14807. [PMID: 29093568 PMCID: PMC5665945 DOI: 10.1038/s41598-017-14926-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 10/06/2017] [Indexed: 01/03/2023] Open
Abstract
Normal pregnancy requires adaptations of the maternal vasculature. During preeclampsia these adaptations are not well established, which may be related to maternal hypertension and proteinuria. The effects of preeclampsia on the maternal vasculature are not yet fully understood. We aimed to evaluate gene expression in aortas of pregnant rats with experimental preeclampsia using a genome wide microarray. Aortas were isolated from pregnant Wistar outbred rats with low-dose LPS-induced preeclampsia (ExpPE), healthy pregnant (Pr), non-pregnant and low-dose LPS-infused non-pregnant rats. Gene expression was measured by microarray and validated by real-time quantitative PCR. Gene Set Enrichment Analysis was performed to compare the groups. Functional analysis of the aorta was done by isotonic contraction measurements while stimulating aortic rings with potassium chloride. 526 genes were differentially expressed, and positive enrichment of “potassium channels”, “striated muscle contraction”, and “neuronal system” gene sets were found in ExpPE vs. Pr. The potassium chloride-induced contractile response of ExpPE aortic rings was significantly decreased compared to this response in Pr animals. Our data suggest that potassium channels, neuronal system and (striated) muscle contraction in the aorta may play a role in the pathophysiology of experimental preeclampsia. Whether these changes are also present in preeclamptic women needs further investigation.
Collapse
|
69
|
Palovaara J, Saiga S, Wendrich JR, van 't Wout Hofland N, van Schayck JP, Hater F, Mutte S, Sjollema J, Boekschoten M, Hooiveld GJ, Weijers D. Transcriptome dynamics revealed by a gene expression atlas of the early Arabidopsis embryo. NATURE PLANTS 2017; 3:894-904. [PMID: 29116234 PMCID: PMC5687563 DOI: 10.1038/s41477-017-0035-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/19/2017] [Indexed: 05/02/2023]
Abstract
During early plant embryogenesis, precursors for all major tissues and stem cells are formed. While several components of the regulatory framework are known, how cell fates are instructed by genome-wide transcriptional activity remains unanswered-in part because of difficulties in capturing transcriptome changes at cellular resolution. Here, we have adapted a two-component transgenic labelling system to purify cell-type-specific nuclear RNA and generate a transcriptome atlas of early Arabidopsis embryo development, with a focus on root stem cell niche formation. We validated the dataset through gene expression analysis, and show that gene activity shifts in a spatio-temporal manner, probably signifying transcriptional reprogramming, to induce developmental processes reflecting cell states and state transitions. This atlas provides the most comprehensive tissue- and cell-specific description of genome-wide gene activity in the early plant embryo, and serves as a valuable resource for understanding the genetic control of early plant development.
Collapse
Affiliation(s)
- Joakim Palovaara
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Shunsuke Saiga
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Jos R Wendrich
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
- Department of Plant Biotechnology and Bioinformatics and VIB Center for Plant Systems Biology, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | | | - J Paul van Schayck
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Friederike Hater
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Sumanth Mutte
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Jouke Sjollema
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Mark Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Guido J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands.
| |
Collapse
|
70
|
Palovaara J, Saiga S, Wendrich JR, van 't Wout Hofland N, van Schayck JP, Hater F, Mutte S, Sjollema J, Boekschoten M, Hooiveld GJ, Weijers D. Transcriptome dynamics revealed by a gene expression atlas of the early Arabidopsis embryo. NATURE PLANTS 2017; 3:894-904. [PMID: 29116234 DOI: 10.1038/s41477-017-0035-33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/19/2017] [Indexed: 05/22/2023]
Abstract
During early plant embryogenesis, precursors for all major tissues and stem cells are formed. While several components of the regulatory framework are known, how cell fates are instructed by genome-wide transcriptional activity remains unanswered-in part because of difficulties in capturing transcriptome changes at cellular resolution. Here, we have adapted a two-component transgenic labelling system to purify cell-type-specific nuclear RNA and generate a transcriptome atlas of early Arabidopsis embryo development, with a focus on root stem cell niche formation. We validated the dataset through gene expression analysis, and show that gene activity shifts in a spatio-temporal manner, probably signifying transcriptional reprogramming, to induce developmental processes reflecting cell states and state transitions. This atlas provides the most comprehensive tissue- and cell-specific description of genome-wide gene activity in the early plant embryo, and serves as a valuable resource for understanding the genetic control of early plant development.
Collapse
Affiliation(s)
- Joakim Palovaara
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Shunsuke Saiga
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Jos R Wendrich
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
- Department of Plant Biotechnology and Bioinformatics and VIB Center for Plant Systems Biology, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | | | - J Paul van Schayck
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Friederike Hater
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Sumanth Mutte
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Jouke Sjollema
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Mark Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Guido J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University, 6708 WE, Wageningen, The Netherlands.
| |
Collapse
|
71
|
Elderman M, Sovran B, Hugenholtz F, Graversen K, Huijskes M, Houtsma E, Belzer C, Boekschoten M, de Vos P, Dekker J, Wells J, Faas M. The effect of age on the intestinal mucus thickness, microbiota composition and immunity in relation to sex in mice. PLoS One 2017; 12:e0184274. [PMID: 28898292 PMCID: PMC5595324 DOI: 10.1371/journal.pone.0184274] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 08/21/2017] [Indexed: 01/14/2023] Open
Abstract
A mucus layer covers and protects the intestinal epithelial cells from direct contact with microbes. This mucus layer not only prevents inflammation but also plays an essential role in microbiota colonization, indicating the complex interplay between mucus composition-microbiota and intestinal health. However, it is unknown whether the mucus layer is influenced by age or sex and whether this contributes to reported differences in intestinal diseases in males and females or with ageing. Therefore, in this study we investigated the effect of age on mucus thickness, intestinal microbiota composition and immune composition in relation to sex. The ageing induced shrinkage of the colonic mucus layer was associated with bacterial penetration and direct contact of bacteria with the epithelium in both sexes. Additionally, several genes involved in the biosynthesis of mucus were downregulated in old mice, especially in males, and this was accompanied by a decrease in abundances of various Lactobacillus species and unclassified Clostridiales type IV and XIV and increase in abundance of the potential pathobiont Bacteroides vulgatus. The changes in mucus and microbiota in old mice were associated with enhanced activation of the immune system as illustrated by a higher percentage of effector T cells in old mice. Our data contribute to a better understanding of the interplay between mucus-microbiota-and immune responses and ultimately may lead to more tailored design of strategies to modulate mucus production in targeted groups.
Collapse
Affiliation(s)
- Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
- * E-mail:
| | - Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Katrine Graversen
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Myrte Huijskes
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Eva Houtsma
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
| | - Clara Belzer
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, the Netherlands
| | - Mark Boekschoten
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Nutrition, Metabolism and Genomics group, Wageningen University, Wageningen, the Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
| | - Jan Dekker
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Jerry Wells
- Top Institute Food and Nutrition, Wageningen, the Netherlands
- Host-Microbe Interactomics Group, Wageningen University, Wageningen, the Netherlands
| | - Marijke Faas
- Division of Medical Biology, department of Pathology and Medical Biology, University of Groningen, Groningen, the Netherlands
- Department of Obstetrics and Gynaecology, University of Groningen and University Medical Centre Groningen, Groningen, the Netherlands
| |
Collapse
|
72
|
Verheggen RJHM, Poelkens F, Roerink SHPP, Ramakers REFS, Catoire M, Hermus ARMM, Thijssen DHJ, Hopman MTE. Exercise Improves Insulin Sensitivity in the Absence of Changes in Cytokines. Med Sci Sports Exerc 2017; 48:2378-2386. [PMID: 27414688 DOI: 10.1249/mss.0000000000001035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE The benefits of aerobic exercise training on insulin sensitivity in subjects with metabolic syndrome (MetS) are, at least in part, associated with changes in cytokines. Recent studies identified novel cytokines (e.g., fractalkine, omentin, and osteopontin) that are strongly involved in glucose homeostasis and therefore potentially contribute in the exercise-induced changes in insulin sensitivity. Therefore, we aim to examine changes in skeletal muscle RNA expression and plasma levels of novel cytokines after exercise training and correlate these changes to the exercise-induced changes in insulin sensitivity. METHODS Women with metabolic syndrome (MetS, n = 11) and healthy women (n = 10) participated in a 6-month aerobic exercise training intervention (three times a week, 45 min per session at 65%-85% of individual heart rate reserve). Before and after training, we examined insulin sensitivity (M value during hyperinsulinemic euglycemic clamp) and circulating blood levels of cytokines (venous blood sample; leptin, adiponectin, omentin, fraktalkin, and osteopontin). The skeletal muscle RNA expression of these cytokines (muscle biopsy) was examined in two subgroups (MetS, n = 6; healthy women, n = 6). RESULTS At baseline, plasma levels of omentin (85.8 ± 26.2 ng·mL) and adiponectin (5.0 ± 1.7 μg·mL) levels were significantly higher in controls compared with MetS (51.1 ± 27.1; 3.6 ± 1.1 respectively), and leptin levels were lower in controls (18.7 ± 11.5 vs 53.0 ± 23.5 ng·mL). M value was significantly higher in controls (8.1 ± 1.9 mg·kg·min) than in MetS (4.0 ± 1.7). Exercise training significantly improved M values in both groups (P < 0.01). Exercise training did not alter plasma and skeletal muscle RNA expression levels of cytokines, but no correlation was observed between changes in cytokine level/RNA expression and M values (P > 0.05). CONCLUSION Although exercise training successfully improves insulin sensitivity in MetS and healthy women, we found no change in plasma and mRNA expression levels of novel cytokines.
Collapse
Affiliation(s)
- Rebecca J H M Verheggen
- 1Department of Physiology, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, THE NETHERLANDS; 2Division of Endocrinology, Department of Internal Medicine, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, THE NETHERLANDS; and 3Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UNITED KINGDOM
| | | | | | | | | | | | | | | |
Collapse
|
73
|
de Vos P, Mujagic Z, de Haan BJ, Siezen RJ, Bron PA, Meijerink M, Wells JM, Masclee AAM, Boekschoten MV, Faas MM, Troost FJ. Lactobacillus plantarum Strains Can Enhance Human Mucosal and Systemic Immunity and Prevent Non-steroidal Anti-inflammatory Drug Induced Reduction in T Regulatory Cells. Front Immunol 2017; 8:1000. [PMID: 28878772 PMCID: PMC5572349 DOI: 10.3389/fimmu.2017.01000] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/04/2017] [Indexed: 12/28/2022] Open
Abstract
Orally ingested bacteria interact with intestinal mucosa and may impact immunity. However, insights in mechanisms involved are limited. In this randomized placebo-controlled cross-over trial, healthy human subjects were given Lactobacillus plantarum supplementation (strain TIFN101, CIP104448, or WCFS1) or placebo for 7 days. To determine whether L. plantarum can enhance immune response, we compared the effects of three stains on systemic and gut mucosal immunity, by among others assessing memory responses against tetanus toxoid (TT)-antigen, and mucosal gene transcription, in human volunteers during induction of mild immune stressor in the intestine, by giving a commonly used enteropathic drug, indomethacin [non-steroidal anti-inflammatory drug (NSAID)]. Systemic effects of the interventions were studies in peripheral blood samples. NSAID was found to induce a reduction in serum CD4+/Foxp3 regulatory cells, which was prevented by L. plantarum TIFN101. T-cell polarization experiments showed L. plantarum TIFN101 to enhance responses against TT-antigen, which indicates stimulation of memory responses by this strain. Cell extracts of the specific L. plantarum strains provoked responses after WCFS1 and TIFN101 consumption, indicating stimulation of immune responses against the specific bacteria. Mucosal immunomodulatory effects were studied in duodenal biopsies. In small intestinal mucosa, TIFN101 upregulated genes associated with maintenance of T- and B-cell function and antigen presentation. Furthermore, L. plantarum TIFN101 and WCFS1 downregulated immunological pathways involved in antigen presentation and shared downregulation of snoRNAs, which may suggest cellular destabilization, but may also be an indicator of tissue repair. Full sequencing of the L. plantarum strains revealed possible gene clusters that might be responsible for the differential biological effects of the bacteria on host immunity. In conclusion, the impact of oral consumption L. plantarum on host immunity is strain dependent and involves responses against bacterial cell components. Some strains may enhance specific responses against pathogens by enhancing antigen presentation and leukocyte maintenance in mucosa. In future studies and clinical settings, caution should be taken in selecting beneficial bacteria as closely related strains can have different effects. Our data show that specific bacterial strains can prevent immune stress induced by commonly consumed painkillers such as NSAID and can have enhancing beneficial effects on immunity of consumers by stimulating antigen presentation and memory responses.
Collapse
Affiliation(s)
- Paul de Vos
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Zlatan Mujagic
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Division of Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School for Nutrition, and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Bart J de Haan
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Roland J Siezen
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Centre for Molecular and Biomolecular Informatics, Radboud University Medical Centre, Nijmegen, Netherlands.,Microbial Bioinformatics, Ede, Netherlands
| | - Peter A Bron
- Top Institute Food and Nutrition, Wageningen, Netherlands.,NIZO Food Research, Ede, Netherlands
| | - Marjolein Meijerink
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Host-Microbe Interactomics, Wageningen University, Wageningen, Netherlands
| | - Jerry M Wells
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Host-Microbe Interactomics, Wageningen University, Wageningen, Netherlands
| | - Ad A M Masclee
- Division of Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School for Nutrition, and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Marijke M Faas
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Freddy J Troost
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Division of Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School for Nutrition, and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht, Netherlands
| |
Collapse
|
74
|
Fransen F, van Beek AA, Borghuis T, Meijer B, Hugenholtz F, van der Gaast-de Jongh C, Savelkoul HF, de Jonge MI, Faas MM, Boekschoten MV, Smidt H, El Aidy S, de Vos P. The Impact of Gut Microbiota on Gender-Specific Differences in Immunity. Front Immunol 2017; 8:754. [PMID: 28713378 PMCID: PMC5491612 DOI: 10.3389/fimmu.2017.00754] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 06/14/2017] [Indexed: 12/14/2022] Open
Abstract
Males and females are known to have gender-specific differences in their immune system and gut microbiota composition. Whether these differences in gut microbiota composition are a cause or consequence of differences in the immune system is not known. To investigate this issue, gut microbiota from conventional males or females was transferred to germ-free (GF) animals of the same or opposing gender. We demonstrate that microbiota-independent gender differences in immunity are already present in GF mice. In particular, type I interferon signaling was enhanced in the intestine of GF females. Presumably, due to these immune differences bacterial groups, such as Alistipes, Rikenella, and Porphyromonadaceae, known to expand in the absence of innate immune defense mechanism were overrepresented in the male microbiota. The presence of these bacterial groups was associated with induction of weight loss, inflammation, and DNA damage upon transfer of the male microbiota to female GF recipients. In summary, our data suggest that microbiota-independent gender differences in the immune system select a gender-specific gut microbiota composition, which in turn further contributes to gender differences in the immune system.
Collapse
Affiliation(s)
- Floris Fransen
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Adriaan A van Beek
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Cell Biology and Immunology Group, Wageningen University, Wageningen, Netherlands
| | - Theo Borghuis
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Ben Meijer
- Cell Biology and Immunology Group, Wageningen University, Wageningen, Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | | | - Huub F Savelkoul
- Cell Biology and Immunology Group, Wageningen University, Wageningen, Netherlands
| | - Marien I de Jonge
- Laboratory of Pediatric Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marijke M Faas
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Hauke Smidt
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Sahar El Aidy
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, Netherlands.,Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| |
Collapse
|
75
|
Janssen AWF, Houben T, Katiraei S, Dijk W, Boutens L, van der Bolt N, Wang Z, Brown JM, Hazen SL, Mandard S, Shiri-Sverdlov R, Kuipers F, Willems van Dijk K, Vervoort J, Stienstra R, Hooiveld GJEJ, Kersten S. Modulation of the gut microbiota impacts nonalcoholic fatty liver disease: a potential role for bile acids. J Lipid Res 2017; 58:1399-1416. [PMID: 28533304 DOI: 10.1194/jlr.m075713] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 05/10/2017] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide, yet the pathogenesis of NAFLD is only partially understood. Here, we investigated the role of the gut bacteria in NAFLD by stimulating the gut bacteria via feeding mice the fermentable dietary fiber, guar gum (GG), and suppressing the gut bacteria via chronic oral administration of antibiotics. GG feeding profoundly altered the gut microbiota composition, in parallel with reduced diet-induced obesity and improved glucose tolerance. Strikingly, despite reducing adipose tissue mass and inflammation, GG enhanced hepatic inflammation and fibrosis, concurrent with markedly elevated plasma and hepatic bile acid levels. Consistent with a role of elevated bile acids in the liver phenotype, treatment of mice with taurocholic acid stimulated hepatic inflammation and fibrosis. In contrast to GG, chronic oral administration of antibiotics effectively suppressed the gut bacteria, decreased portal secondary bile acid levels, and attenuated hepatic inflammation and fibrosis. Neither GG nor antibiotics influenced plasma lipopolysaccharide levels. In conclusion, our data indicate a causal link between changes in gut microbiota and hepatic inflammation and fibrosis in a mouse model of NAFLD, possibly via alterations in bile acids.
Collapse
Affiliation(s)
- Aafke W F Janssen
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands
| | - Tom Houben
- Department of Molecular Genetics, Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Saeed Katiraei
- Departments of Human Genetics Leiden University Medical Center, 2300 RC Leiden, The Netherlands
| | - Wieneke Dijk
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands
| | - Lily Boutens
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands; Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nieke van der Bolt
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands
| | - Zeneng Wang
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195
| | - J Mark Brown
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195
| | - Stanley L Hazen
- Department of Cellular and Molecular Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195
| | - Stéphane Mandard
- Lipness Team-INSERM Research Center UMR1231 and LabEx LipSTIC, Faculté de Médecine, Université de Bourgogne-Franche Comté, 21079 Dijon CEDEX, France
| | - Ronit Shiri-Sverdlov
- Department of Molecular Genetics, Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Folkert Kuipers
- Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands; Department of Pediatrics and Laboratory Medicine, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Ko Willems van Dijk
- Departments of Human Genetics Leiden University Medical Center, 2300 RC Leiden, The Netherlands; Departments of Medicine, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
| | - Jacques Vervoort
- Laboratory of Biochemistry, Wageningen University, 6708 WE Wageningen, The Netherlands
| | - Rinke Stienstra
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands; Department of Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Guido J E J Hooiveld
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition Wageningen University, 6708 WE Wageningen, The Netherlands.
| |
Collapse
|
76
|
Rusli F, Lute C, Boekschoten MV, van Dijk M, van Norren K, Menke AL, Müller M, Steegenga WT. Intermittent calorie restriction largely counteracts the adverse health effects of a moderate-fat diet in aging C57BL/6J mice. Mol Nutr Food Res 2017; 61:1600677. [PMID: 27995741 PMCID: PMC6120141 DOI: 10.1002/mnfr.201600677] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 12/02/2016] [Accepted: 12/08/2016] [Indexed: 12/27/2022]
Abstract
SCOPE Calorie restriction (CR) has been shown to extend life- and health-span in model species. For most humans, a life-long CR diet is too arduous to adhere to. The aim of this study was to explore whether weekly intermittent CR can (1) provide long-term beneficial effects and (2) counteract diet-induced obesity in male aging mice. METHODS AND RESULTS In this study, we have exposed C57Bl/6J mice for 24 months to an intermittent (INT) diet, alternating weekly between CR of a control diet and ad libitum moderate-fat (MF) feeding. This weekly intermittent CR significantly counteracted the adverse effects of the MF diet on mortality, body weight, and liver health markers in 24-month-old male mice. Hepatic gene expression profiles of INT-exposed animals appeared much more comparable to CR- than to MF-exposed mice. At 12 months of age, a subgroup of MF-exposed mice was transferred to the INT diet. Gene expression profiles in the liver of the 24-month-old diet switch mice were highly similar to the INT-exposed mice. However, a small subset of genes was consistently changed by the MF diet during the first phase of life. CONCLUSION Weekly intermittent CR largely, but not completely, reversed adverse effects caused by a MF diet.
Collapse
Affiliation(s)
- Fenni Rusli
- Nutrition, Metabolism and Genomics Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| | - Carolien Lute
- Nutrition, Metabolism and Genomics Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| | - Mark V. Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| | - Miriam van Dijk
- Nutrition and Pharmacology Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| | - Klaske van Norren
- Nutrition and Pharmacology Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
- Nutricia ResearchUtrechtThe Netherlands
| | | | - Michael Müller
- Nutrigenomics and Systems Nutrition Group, Norwich Medical SchoolUniversity of East AngliaNorwich NR4 7UQUK
| | - Wilma T. Steegenga
- Nutrition, Metabolism and Genomics Group, Division of Human NutritionWageningen UniversityWageningenThe Netherlands
| |
Collapse
|
77
|
Parikh SV, Malvar A, Song H, Alberton V, Lococo B, Vance J, Zhang J, Yu L, Birmingham D, Rovin BH. Molecular imaging of the kidney in lupus nephritis to characterize response to treatment. Transl Res 2017; 182:1-13. [PMID: 27842222 PMCID: PMC5362303 DOI: 10.1016/j.trsl.2016.10.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/20/2016] [Accepted: 10/22/2016] [Indexed: 10/20/2022]
Abstract
The consequences of treatment for the kidney at the molecular level have not been explored in human lupus nephritis (LN). In this investigation, changes in intrarenal transcript expression were measured and correlated with response in a LN cohort that underwent serial kidney biopsies. The intrarenal transcript expression of 19 patients with proliferative LN (Class III or IV) was measured at diagnostic biopsy (Bx1) and after induction therapy was completed (Bx2) using Nanostring technology. Patients were segregated by clinical response into complete responders (n = 5, CR) or nonresponders (n = 4, NR). Transcript expression for each biopsy was compared with normal controls (n = 4), and the change in expression was compared in each responder group and between groups. Compared with controls, the CR group had 21 and 28, whereas NR had 45 and 103 differentially-expressed transcripts at Bx1 and Bx2, respectively. The profiles of these differentially-expressed genes indicated that the type I and II interferon, alternative complement and T cell signaling pathways discriminated CR from NR. Comparing the change in transcript expression from Bx1 to Bx2 revealed a 5-gene signature that differentiated NR from CR and included increased IL1RAP and FCAR in NR and increased NCAM1 in CR. In summary, molecular imaging of serial kidney biopsies from LN patients shows several immune and inflammatory pathways that are dysregulated in the kidneys during active disease that may serve as therapeutic targets to improve clinical response. This approach to LN biomarker development may facilitate personalized medicine in LN and improve long-term kidney outcomes.
Collapse
Affiliation(s)
- Samir V Parikh
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Ana Malvar
- Nephrology Unit, Hospital Fernandez, Buenos Aires, Argentina
| | - Huijuan Song
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Valeria Alberton
- Department of Pathology, Hospital Fernandez, Buenos Aires, Argentina
| | - Bruno Lococo
- Nephrology Unit, Hospital Fernandez, Buenos Aires, Argentina
| | - Jay Vance
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Jianying Zhang
- Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Lianbo Yu
- Center for Biostatistics, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Dan Birmingham
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Brad H Rovin
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio.
| |
Collapse
|
78
|
Fransen F, Sahasrabudhe NM, Elderman M, Bosveld M, El Aidy S, Hugenholtz F, Borghuis T, Kousemaker B, Winkel S, van der Gaast-de Jongh C, de Jonge MI, Boekschoten MV, Smidt H, Schols HA, de Vos P. β2→1-Fructans Modulate the Immune System In Vivo in a Microbiota-Dependent and -Independent Fashion. Front Immunol 2017; 8:154. [PMID: 28261212 PMCID: PMC5311052 DOI: 10.3389/fimmu.2017.00154] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 01/30/2017] [Indexed: 12/15/2022] Open
Abstract
It has been shown in vitro that only specific dietary fibers contribute to immunity, but studies in vivo are not conclusive. Here, we investigated degree of polymerization (DP) dependent effects of β2→1-fructans on immunity via microbiota-dependent and -independent effects. To this end, conventional or germ-free mice received short- or long-chain β2→1-fructan for 5 days. Immune cell populations in the spleen, mesenteric lymph nodes (MLNs), and Peyer’s patches (PPs) were analyzed with flow cytometry, genome-wide gene expression in the ileum was measured with microarray, and gut microbiota composition was analyzed with 16S rRNA sequencing of fecal samples. We found that β2→1-fructans modulated immunity by both microbiota and microbiota-independent effects. Moreover, effects were dependent on the chain-length of the β2→1-fructans type polymer. Both short- and long-chain β2→1-fructans enhanced T-helper 1 cells in PPs, whereas only short-chain β2→1-fructans increased regulatory T cells and CD11b−CD103− dendritic cells (DCs) in the MLN. A common feature after short- and long-chain β2→1-fructan treatment was enhanced 2-alpha-l-fucosyltransferase 2 expression and other IL-22-dependent genes in the ileum of conventional mice. These effects were not associated with shifts in gut microbiota composition, or altered production of short-chain fatty acids. Both short- and long-chain β2→1-fructans also induced immune effects in germ-free animals, demonstrating direct effect independent from the gut microbiota. Also, these effects were dependent on the chain-length of the β2→1-fructans. Short-chain β2→1-fructan induced lower CD80 expression by CD11b−CD103− DCs in PPs, whereas long-chain β2→1-fructan specifically modulated B cell responses in germ-free mice. In conclusion, support of immunity is determined by the chemical structure of β2→1-fructans and is partially microbiota independent.
Collapse
Affiliation(s)
- Floris Fransen
- Top Institute Food and Nutrition, Wageningen, Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Neha M Sahasrabudhe
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
| | - Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Margaret Bosveld
- Laboratory of Food Chemistry, Wageningen University , Wageningen , Netherlands
| | - Sahar El Aidy
- Microbial Physiology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen , Groningen , Netherlands
| | - Floor Hugenholtz
- Top Institute Food and Nutrition, Wageningen, Netherlands; Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Theo Borghuis
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
| | - Ben Kousemaker
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
| | - Simon Winkel
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
| | | | - Marien I de Jonge
- Laboratory of Pediatric Infectious Diseases, Radboud University Medical Center , Nijmegen , Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, Netherlands; Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, Netherlands
| | - Hauke Smidt
- Top Institute Food and Nutrition, Wageningen, Netherlands; Laboratory of Microbiology, Wageningen University, Wageningen, Netherlands
| | - Henk A Schols
- Top Institute Food and Nutrition, Wageningen, Netherlands; Laboratory of Food Chemistry, Wageningen University, Wageningen, Netherlands
| | - Paul de Vos
- Top Institute Food and Nutrition, Wageningen, Netherlands; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| |
Collapse
|
79
|
Ratcliffe S, Jugdaohsingh R, Vivancos J, Marron A, Deshmukh R, Ma JF, Mitani-Ueno N, Robertson J, Wills J, Boekschoten MV, Müller M, Mawhinney RC, Kinrade SD, Isenring P, Bélanger RR, Powell JJ. Identification of a mammalian silicon transporter. Am J Physiol Cell Physiol 2017; 312:C550-C561. [PMID: 28179233 PMCID: PMC5451523 DOI: 10.1152/ajpcell.00219.2015] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/01/2017] [Accepted: 02/01/2017] [Indexed: 12/30/2022]
Abstract
Silicon (Si) has long been known to play a major physiological and structural role in certain organisms, including diatoms, sponges, and many higher plants, leading to the recent identification of multiple proteins responsible for Si transport in a range of algal and plant species. In mammals, despite several convincing studies suggesting that silicon is an important factor in bone development and connective tissue health, there is a critical lack of understanding about the biochemical pathways that enable Si homeostasis. Here we report the identification of a mammalian efflux Si transporter, namely Slc34a2 (also termed NaPiIIb), a known sodium-phosphate cotransporter, which was upregulated in rat kidney following chronic dietary Si deprivation. Normal rat renal epithelium demonstrated punctate expression of Slc34a2, and when the protein was heterologously expressed in Xenopus laevis oocytes, Si efflux activity (i.e., movement of Si out of cells) was induced and was quantitatively similar to that induced by the known plant Si transporter OsLsi2 in the same expression system. Interestingly, Si efflux appeared saturable over time, but it did not vary as a function of extracellular HPO42− or Na+ concentration, suggesting that Slc34a2 harbors a functionally independent transport site for Si operating in the reverse direction to the site for phosphate. Indeed, in rats with dietary Si depletion-induced upregulation of transporter expression, there was increased urinary phosphate excretion. This is the first evidence of an active Si transport protein in mammals and points towards an important role for Si in vertebrates and explains interactions between dietary phosphate and silicon.
Collapse
Affiliation(s)
- Sarah Ratcliffe
- Medical Research Council Elsie Widdowson Laboratory, Cambridge, United Kingdom
| | - Ravin Jugdaohsingh
- Medical Research Council Elsie Widdowson Laboratory, Cambridge, United Kingdom.,Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Julien Vivancos
- Département de Phytologie-Faculté des Sciences de l'Agriculture et de l'Alimentation, Centre de Recherche en Horticulture, Université Laval, Quebec City, Quebec, Canada
| | - Alan Marron
- Department of Zoology, University of Cambridge, Cambridge United Kingdom
| | - Rupesh Deshmukh
- Department of Zoology, University of Cambridge, Cambridge United Kingdom
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Namiki Mitani-Ueno
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Jack Robertson
- Medical Research Council Elsie Widdowson Laboratory, Cambridge, United Kingdom
| | - John Wills
- Mechanistic Studies Division, Environmental Health Sciences & Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Mark V Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Michael Müller
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | | | - Stephen D Kinrade
- Department of Chemistry, Lakehead University, Thunder Bay, Canada; and
| | - Paul Isenring
- Nephrology Group L'Hôtel-Dieu de Québec Institution, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, Quebec, Canada
| | - Richard R Bélanger
- Département de Phytologie-Faculté des Sciences de l'Agriculture et de l'Alimentation, Centre de Recherche en Horticulture, Université Laval, Quebec City, Quebec, Canada
| | - Jonathan J Powell
- Medical Research Council Elsie Widdowson Laboratory, Cambridge, United Kingdom; .,Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| |
Collapse
|
80
|
Pele LC, Haas CT, Hewitt RE, Robertson J, Skepper J, Brown A, Hernandez-Garrido JC, Midgley PA, Faria N, Chappell H, Powell JJ. Synthetic mimetics of the endogenous gastrointestinal nanomineral: Silent constructs that trap macromolecules for intracellular delivery. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2017; 13:619-630. [PMID: 27478107 PMCID: PMC5339085 DOI: 10.1016/j.nano.2016.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 06/14/2016] [Accepted: 07/18/2016] [Indexed: 02/02/2023]
Abstract
Amorphous magnesium-substituted calcium phosphate (AMCP) nanoparticles (75-150nm) form constitutively in large numbers in the mammalian gut. Collective evidence indicates that they trap and deliver luminal macromolecules to mucosal antigen presenting cells (APCs) and facilitate gut immune homeostasis. Here, we report on a synthetic mimetic of the endogenous AMCP and show that it has marked capacity to trap macromolecules during formation. Macromolecular capture into AMCP involved incorporation as shown by STEM tomography of the synthetic AMCP particle with 5nm ultra-fine iron (III) oxohydroxide. In vitro, organic cargo-loaded synthetic AMCP was taken up by APCs and tracked to lysosomal compartments. The AMCP itself did not regulate any gene, or modify any gene regulation by its cargo, based upon whole genome transcriptomic analyses. We conclude that synthetic AMCP can efficiently trap macromolecules and deliver them to APCs in a silent fashion, and may thus represent a new platform for antigen delivery.
Collapse
Affiliation(s)
- Laetitia C. Pele
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Carolin T. Haas
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Rachel E. Hewitt
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Jack Robertson
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Jeremy Skepper
- Cambridge advanced Imaging Centre, Physiology development and Neuroscience, Anatomy building, University of Cambridge, Cambridge
| | - Andy Brown
- Institute for Materials Research, SCAPE, University of Leeds, Leeds
| | - Juan Carlos Hernandez-Garrido
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Universitario Rio San Pedro, Puerto Real, Spain
| | - Paul A. Midgley
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge
| | - Nuno Faria
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Helen Chappell
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK
| | - Jonathan J. Powell
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, UK,Corresponding author.
| |
Collapse
|
81
|
Lifestyle and Horizontal Gene Transfer-Mediated Evolution of Mucispirillum schaedleri, a Core Member of the Murine Gut Microbiota. mSystems 2017; 2:mSystems00171-16. [PMID: 28168224 PMCID: PMC5285517 DOI: 10.1128/msystems.00171-16] [Citation(s) in RCA: 137] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 01/04/2017] [Indexed: 01/01/2023] Open
Abstract
Shifts in gut microbiota composition have been associated with intestinal inflammation, but it remains unclear whether inflammation-associated bacteria are commensal or detrimental to their host. Here, we studied the lifestyle of the gut bacterium Mucispirillum schaedleri, which is associated with inflammation in widely used mouse models. We found that M. schaedleri has specialized systems to handle oxidative stress during inflammation. Additionally, it expresses secretion systems and effector proteins and can modify the mucosal gene expression of its host. This suggests that M. schaedleri undergoes intimate interactions with its host and may play a role in inflammation. The insights presented here aid our understanding of how commensal gut bacteria may be involved in altering susceptibility to disease. Mucispirillum schaedleri is an abundant inhabitant of the intestinal mucus layer of rodents and other animals and has been suggested to be a pathobiont, a commensal that plays a role in disease. In order to gain insights into its lifestyle, we analyzed the genome and transcriptome of M. schaedleri ASF 457 and performed physiological experiments to test traits predicted by its genome. Although described as a mucus inhabitant, M. schaedleri has limited capacity for degrading host-derived mucosal glycans and other complex polysaccharides. Additionally, M. schaedleri reduces nitrate and expresses systems for scavenging oxygen and reactive oxygen species in vivo, which may account for its localization close to the mucosal tissue and expansion during inflammation. Also of note, M. schaedleri harbors a type VI secretion system and putative effector proteins and can modify gene expression in mucosal tissue, suggesting intimate interactions with its host and a possible role in inflammation. The M. schaedleri genome has been shaped by extensive horizontal gene transfer, primarily from intestinal Epsilon- and Deltaproteobacteria, indicating that horizontal gene transfer has played a key role in defining its niche in the gut ecosystem. IMPORTANCE Shifts in gut microbiota composition have been associated with intestinal inflammation, but it remains unclear whether inflammation-associated bacteria are commensal or detrimental to their host. Here, we studied the lifestyle of the gut bacterium Mucispirillum schaedleri, which is associated with inflammation in widely used mouse models. We found that M. schaedleri has specialized systems to handle oxidative stress during inflammation. Additionally, it expresses secretion systems and effector proteins and can modify the mucosal gene expression of its host. This suggests that M. schaedleri undergoes intimate interactions with its host and may play a role in inflammation. The insights presented here aid our understanding of how commensal gut bacteria may be involved in altering susceptibility to disease.
Collapse
|
82
|
Liu D, Wang R, Grant AR, Zhang J, Gordon PM, Wei Y, Chen P. Immune adaptation to chronic intense exercise training: new microarray evidence. BMC Genomics 2017; 18:29. [PMID: 28056786 PMCID: PMC5216585 DOI: 10.1186/s12864-016-3388-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 12/07/2016] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Endurance exercise training, especially the high-intensity training, exhibits a strong influence on the immune system. However, the mechanisms underpinning the immune-regulatory effect of exercise remain unclear. Consequently, we chose to investigate the alterations in the transcriptional profile of blood leukocytes in young endurance athletes as compared with healthy sedentary controls, using Affymetrix human gene 1.1 ST array. RESULTS Group differences in the transcriptome were analyzed using Intensity-based Hierarchical Bayes method followed by a Logistic Regression-based gene set enrichment method. We identified 72 significant transcripts differentially expressed in the leukocyte transcriptome of young endurance athletes as compared with non-athlete controls with a false discovery rate (FDR) < 0.05, comprising mainly the genes encoding ribosomal proteins and the genes involved in mitochondrial oxidative phosphorylation. Gene set enrichment analysis identified three major gene set clusters: two were up-regulated in athletes including gene translation and ribosomal protein production, and mitochondria oxidative phosphorylation and biogenesis; one gene set cluster identified as transcriptionally downregulated in athletes was related to inflammation and immune activity. CONCLUSION Our data indicates that in young healthy individuals, intense endurance exercise training (exemplifed by athletic training) can chronically induce transcriptional changes in the peripheral blood leukocytes, upregulating genes related to protein production and mitochondrial energetics, and downregulating genes involved in inflammatory response. The findings of the study also provide support for the notion that peripheral blood can be used as a surrogate tissue to study the systemic effect of exercise training.
Collapse
Affiliation(s)
- Dongmei Liu
- School of Kinesiology, Shanghai University of Sport, Qinyuanhuan Road, #650, Yangpu District, Shanghai, China
| | - Ru Wang
- School of Kinesiology, Shanghai University of Sport, Qinyuanhuan Road, #650, Yangpu District, Shanghai, China
| | - Ana R. Grant
- Department of Computational Medicine & Bioinformatics / Bioinformatics Core, University of Michigan Medical School, Ann Arbor, MI USA
| | - Jinming Zhang
- College of sports medicine and rehabilitation, Taishan Medical University, Shandong Province, China
| | - Paul M. Gordon
- Department of Health, Human Performance and Recreation, Baylor University, Waco, TX USA
| | - Yuqin Wei
- School of Kinesiology, Shanghai University of Sport, Qinyuanhuan Road, #650, Yangpu District, Shanghai, China
| | - Peijie Chen
- School of Kinesiology, Shanghai University of Sport, Qinyuanhuan Road, #650, Yangpu District, Shanghai, China
| |
Collapse
|
83
|
Bei Y, Hong P. Robust differential expression analysis by learning discriminant boundary in multi-dimensional space of statistical attributes. BMC Bioinformatics 2016; 17:541. [PMID: 27993137 PMCID: PMC5168810 DOI: 10.1186/s12859-016-1386-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 11/26/2016] [Indexed: 11/10/2022] Open
Abstract
Background Performing statistical tests is an important step in analyzing genome-wide datasets for detecting genomic features differentially expressed between conditions. Each type of statistical test has its own advantages in characterizing certain aspects of differences between population means and often assumes a relatively simple data distribution (e.g., Gaussian, Poisson, negative binomial, etc.), which may not be well met by the datasets of interest. Making insufficient distributional assumptions can lead to inferior results when dealing with complex differential expression patterns. Results We propose to capture differential expression information more comprehensively by integrating multiple test statistics, each of which has relatively limited capacity to summarize the observed differential expression information. This work addresses a general application scenario, in which users want to detect as many as DEFs while requiring the false discovery rate (FDR) to be lower than a cut-off. We treat each test statistic as a basic attribute, and model the detection of differentially expressed genomic features as learning a discriminant boundary in a multi-dimensional space of basic attributes. We mathematically formulated our goal as a constrained optimization problem aiming to maximize discoveries satisfying a user-defined FDR. An effective algorithm, Discriminant-Cut, has been developed to solve an instantiation of this problem. Extensive comparisons of Discriminant-Cut with 13 existing methods were carried out to demonstrate its robustness and effectiveness. Conclusions We have developed a novel machine learning methodology for robust differential expression analysis, which can be a new avenue to significantly advance research on large-scale differential expression analysis. Electronic supplementary material The online version of this article (doi:10.1186/s12859-016-1386-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yuanzhe Bei
- Computer Science Department, Brandeis University, Waltham, MA, 02453, USA
| | - Pengyu Hong
- Computer Science Department, Brandeis University, Waltham, MA, 02453, USA.
| |
Collapse
|
84
|
Lachmandas E, Boutens L, Ratter JM, Hijmans A, Hooiveld GJ, Joosten LAB, Rodenburg RJ, Fransen JAM, Houtkooper RH, van Crevel R, Netea MG, Stienstra R. Microbial stimulation of different Toll-like receptor signalling pathways induces diverse metabolic programmes in human monocytes. Nat Microbiol 2016; 2:16246. [PMID: 27991883 DOI: 10.1038/nmicrobiol.2016.246] [Citation(s) in RCA: 189] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 11/04/2016] [Indexed: 01/16/2023]
Abstract
Microbial stimuli such as lipopolysaccharide (LPS) induce robust metabolic rewiring in immune cells known as the Warburg effect. It is unknown whether this increase in glycolysis and decrease in oxidative phosphorylation (OXPHOS) is a general characteristic of monocytes that have encountered a pathogen. Using CD14+ monocytes from healthy donors, we demonstrated that most microbial stimuli increased glycolysis, but that only stimulation of Toll-like receptor (TLR) 4 with LPS led to a decrease in OXPHOS. Instead, activation of other TLRs, such as TLR2 activation by Pam3CysSK4 (P3C), increased oxygen consumption and mitochondrial enzyme activity. Transcriptome and metabolome analysis of monocytes stimulated with P3C versus LPS confirmed the divergent metabolic responses between both stimuli, and revealed significant differences in the tricarboxylic acid cycle, OXPHOS and lipid metabolism pathways following stimulation of monocytes with P3C versus LPS. At a functional level, pharmacological inhibition of complex I of the mitochondrial electron transport chain diminished cytokine production and phagocytosis in P3C- but not LPS-stimulated monocytes. Thus, unlike LPS, complex microbial stimuli and the TLR2 ligand P3C induce a specific pattern of metabolic rewiring that involves upregulation of both glycolysis and OXPHOS, which enables activation of host defence mechanisms such as cytokine production and phagocytosis.
Collapse
Affiliation(s)
- Ekta Lachmandas
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Lily Boutens
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Jacqueline M Ratter
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Anneke Hijmans
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Guido J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Richard J Rodenburg
- Department of Pediatrics, Radboud Center for Mitochondrial Medicine, 774 Translational Metabolic Laboratory, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Jack A M Fransen
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 1105 AZ, Nijmegen, The Netherlands
| | - Riekelt H Houtkooper
- Laboratory Genetic Metabolic Diseases, Academic Medical Center, 1105 AZ, Amsterdam, The Netherlands
| | - Reinout van Crevel
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands
| | - Rinke Stienstra
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, 6525 GA, Nijmegen, The Netherlands.,Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE, Wageningen, The Netherlands
| |
Collapse
|
85
|
Bijsmans ITGW, Milona A, Ijssennagger N, Willemsen ECL, Ramos Pittol JM, Jonker JW, Lange K, Hooiveld GJEJ, van Mil SWC. Characterization of stem cell-derived liver and intestinal organoids as a model system to study nuclear receptor biology. Biochim Biophys Acta Mol Basis Dis 2016; 1863:687-700. [PMID: 27956139 DOI: 10.1016/j.bbadis.2016.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 10/31/2016] [Accepted: 12/04/2016] [Indexed: 12/11/2022]
Abstract
Nuclear receptors (NRs) are ligand-activated transcription factors regulating a large variety of processes involved in reproduction, development, and metabolism. NRs are ideal drug targets because they are activated by lipophilic ligands that easily pass cell membranes. Immortalized cell lines recapitulate NR biology poorly and generating primary cultures is laborious and requires a constant need for donor material. There is a clear need for development of novel preclinical model systems that better resemble human physiology. Uncertainty due to technical limitations early in drug development is often the cause of preclinical drugs not reaching the clinic. Here, we studied whether organoids, mini-organs derived from the respective mouse tissue's stem cells, can serve as a novel model system to study NR biology and targetability. We characterized mRNA expression profiles of the NR superfamily in mouse liver, ileum, and colon organoids. Tissue-specific expression patterns were largely maintained in the organoids, indicating their suitability for NR research. Metabolic NRs Fxrα, Lxrα, Lxrβ, Pparα, and Pparγ induced expression of and binding to endogenous target genes. Transcriptome analyses of wildtype colon organoids stimulated with Rosiglitazone showed that lipid metabolism was the highest significant changed function, greatly mimicking the PPARs and Rosiglitazone function in vivo. Finally, using organoids we identify Trpm6, Slc26a3, Ang1, and Rnase4, as novel Fxr target genes. Our results demonstrate that organoids represent a framework to study NR biology that can be further expanded to human organoids to improve preclinical testing of novel drugs that target this pharmacologically important class of ligand activated transcription factors.
Collapse
Affiliation(s)
- Ingrid T G W Bijsmans
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Alexandra Milona
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Noortje Ijssennagger
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ellen C L Willemsen
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - José M Ramos Pittol
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Johan W Jonker
- Center for Liver, Digestive and Metabolic Diseases, Department of Pediatrics, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Katja Lange
- Nutrition, Metabolism & Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Guido J E J Hooiveld
- Nutrition, Metabolism & Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Saskia W C van Mil
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.
| |
Collapse
|
86
|
Poland M, Ten Klooster JP, Wang Z, Pieters R, Boekschoten M, Witkamp R, Meijerink J. Docosahexaenoyl serotonin, an endogenously formed n-3 fatty acid-serotonin conjugate has anti-inflammatory properties by attenuating IL-23-IL-17 signaling in macrophages. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1861:2020-2028. [PMID: 27663185 DOI: 10.1016/j.bbalip.2016.09.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 08/24/2016] [Accepted: 09/16/2016] [Indexed: 01/01/2023]
Abstract
Conjugates of fatty acids and amines, including endocannabinoids, are known to play important roles as endogenous signaling molecules. Among these, the ethanolamine conjugate of the n-3 poly unsaturated long chain fatty acid (PUFA) docosahexaenoic acid (22:6n-3) (DHA) was shown to possess strong anti-inflammatory properties. Previously, we identified the serotonin conjugate of DHA, docosahexaenoyl serotonin (DHA-5-HT), in intestinal tissues and showed that its levels are markedly influenced by intake of n-3 PUFAs. However, its biological roles remain to be elucidated. Here, we show that DHA-5-HT possesses potent anti-inflammatory properties by attenuating the IL-23-IL-17 signaling cascade in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. Transcriptome analysis revealed that DHA-5-HT down-regulates LPS-induced genes, particularly those involved in generating a CD4+ Th17 response. Hence, levels of PGE2, IL-6, IL-1β, and IL-23, all pivotal macrophage-produced mediators driving the activation of pathogenic Th17 cells in a concerted way, were found to be significantly suppressed by concentrations as low as 100-500nM DHA-5-HT. Furthermore, DHA-5-HT inhibited the ability of RAW264.7 cells to migrate and downregulated chemokines like MCP-1, CCL-20, and gene-expression of CCL-22 and of several metalloproteinases. Gene set enrichment analysis (GSEA) suggested negative overlap with gene sets linked to inflammatory bowel disease (IBD) and positive overlap with gene sets related to the Nrf2 pathway. The specific formation of DHA-5-HT in the gut, combined with increasing data underlining the importance of the IL-23-IL-17 signaling pathway in the etiology of many chronic inflammatory diseases merits further investigation into its potential as therapeutic compound in e.g. IBD or intestinal tumorigenesis.
Collapse
Affiliation(s)
- Mieke Poland
- Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands.
| | - Jean Paul Ten Klooster
- Institute for Life Sciences & Chemistry, Utrecht University of Applied Sciences, Utrecht, The Netherlands.
| | - Zheng Wang
- Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands.
| | - Raymond Pieters
- Institute for Life Sciences & Chemistry, Utrecht University of Applied Sciences, Utrecht, The Netherlands.
| | - Mark Boekschoten
- Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands.
| | - Renger Witkamp
- Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands.
| | - Jocelijn Meijerink
- Division of Human Nutrition, Wageningen University, PO Box 17, 6700 AA Wageningen, The Netherlands.
| |
Collapse
|
87
|
Hypertrophy induced KIF5B controls mitochondrial localization and function in neonatal rat cardiomyocytes. J Mol Cell Cardiol 2016; 97:70-81. [DOI: 10.1016/j.yjmcc.2016.04.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/27/2016] [Accepted: 04/12/2016] [Indexed: 11/19/2022]
|
88
|
Rusli F, Deelen J, Andriyani E, Boekschoten MV, Lute C, van den Akker EB, Müller M, Beekman M, Steegenga WT. Fibroblast growth factor 21 reflects liver fat accumulation and dysregulation of signalling pathways in the liver of C57BL/6J mice. Sci Rep 2016; 6:30484. [PMID: 27470139 PMCID: PMC4965761 DOI: 10.1038/srep30484] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 07/06/2016] [Indexed: 12/24/2022] Open
Abstract
Fibroblast growth factor 21 (Fgf21) has emerged as a potential plasma marker to diagnose non-alcoholic fatty liver disease (NAFLD). To study the molecular processes underlying the association of plasma Fgf21 with NAFLD, we explored the liver transcriptome data of a mild NAFLD model of aging C57BL/6J mice at 12, 24, and 28 months of age. The plasma Fgf21 level significantly correlated with intrahepatic triglyceride content. At the molecular level, elevated plasma Fgf21 levels were associated with dysregulated metabolic and cancer-related pathways. The up-regulated Fgf21 levels in NAFLD were implied to be a protective response against the NAFLD-induced adverse effects, e.g. lipotoxicity, oxidative stress and endoplasmic reticulum stress. An in vivo PPARα challenge demonstrated the dysregulation of PPARα signalling in the presence of NAFLD, which resulted in a stochastically increasing hepatic expression of Fgf21. Notably, elevated plasma Fgf21 was associated with declining expression of Klb, Fgf21’s crucial co-receptor, which suggests a resistance to Fgf21. Therefore, although liver fat accumulation is a benign stage of NAFLD, the elevated plasma Fgf21 likely indicated vulnerability to metabolic stressors that may contribute towards progression to end-stage NAFLD. In conclusion, plasma levels of Fgf21 reflect liver fat accumulation and dysregulation of metabolic pathways in the liver.
Collapse
Affiliation(s)
- Fenni Rusli
- Nutrition, Metabolism &Genomics Group, Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands
| | - Joris Deelen
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Evi Andriyani
- Nutrition, Metabolism &Genomics Group, Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands
| | - Mark V Boekschoten
- Nutrition, Metabolism &Genomics Group, Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands
| | - Carolien Lute
- Nutrition, Metabolism &Genomics Group, Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands
| | - Erik B van den Akker
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.,The Delft Bioinformatics Lab, Delft University of Technology, Mekelweg 4, 2628 CD, Delft, The Netherlands
| | - Michael Müller
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Marian Beekman
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Wilma T Steegenga
- Nutrition, Metabolism &Genomics Group, Division of Human Nutrition, Wageningen University, 6700 EV Wageningen, The Netherlands
| |
Collapse
|
89
|
Phipson B, Lee S, Majewski IJ, Alexander WS, Smyth GK. ROBUST HYPERPARAMETER ESTIMATION PROTECTS AGAINST HYPERVARIABLE GENES AND IMPROVES POWER TO DETECT DIFFERENTIAL EXPRESSION. Ann Appl Stat 2016; 10:946-963. [PMID: 28367255 DOI: 10.1214/16-aoas920] [Citation(s) in RCA: 607] [Impact Index Per Article: 75.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
One of the most common analysis tasks in genomic research is to identify genes that are differentially expressed (DE) between experimental conditions. Empirical Bayes (EB) statistical tests using moderated genewise variances have been very effective for this purpose, especially when the number of biological replicate samples is small. The EB procedures can however be heavily influenced by a small number of genes with very large or very small variances. This article improves the differential expression tests by robustifying the hyperparameter estimation procedure. The robust procedure has the effect of decreasing the informativeness of the prior distribution for outlier genes while increasing its informativeness for other genes. This effect has the double benefit of reducing the chance that hypervariable genes will be spuriously identified as DE while increasing statistical power for the main body of genes. The robust EB algorithm is fast and numerically stable. The procedure allows exact small-sample null distributions for the test statistics and reduces exactly to the original EB procedure when no outlier genes are present. Simulations show that the robustified tests have similar performance to the original tests in the absence of outlier genes but have greater power and robustness when outliers are present. The article includes case studies for which the robust method correctly identifies and downweights genes associated with hidden covariates and detects more genes likely to be scientifically relevant to the experimental conditions. The new procedure is implemented in the limma software package freely available from the Bioconductor repository.
Collapse
Affiliation(s)
| | - Stanley Lee
- The Walter and Eliza Hall Institute of Medical Research; The University of Melbourne
| | - Ian J Majewski
- The Walter and Eliza Hall Institute of Medical Research; The University of Melbourne
| | - Warren S Alexander
- The Walter and Eliza Hall Institute of Medical Research; The University of Melbourne
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research; The University of Melbourne
| |
Collapse
|
90
|
Steegenga WT, Mischke M, Lute C, Boekschoten MV, Lendvai A, Pruis MGM, Verkade HJ, van de Heijning BJM, Boekhorst J, Timmerman HM, Plösch T, Müller M, Hooiveld GJEJ. Maternal exposure to a Western-style diet causes differences in intestinal microbiota composition and gene expression of suckling mouse pups. Mol Nutr Food Res 2016; 61. [PMID: 27129739 PMCID: PMC5215441 DOI: 10.1002/mnfr.201600141] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/25/2016] [Accepted: 04/13/2016] [Indexed: 12/14/2022]
Abstract
Scope The long‐lasting consequences of nutritional programming during the early phase of life have become increasingly evident. The effects of maternal nutrition on the developing intestine are still underexplored. Methods and results In this study, we observed (1) altered microbiota composition of the colonic luminal content, and (2) differential gene expression in the intestinal wall in 2‐week‐old mouse pups born from dams exposed to a Western‐style (WS) diet during the perinatal period. A sexually dimorphic effect was found for the differentially expressed genes in the offspring of WS diet‐exposed dams but no differences between male and female pups were found for the microbiota composition. Integrative analysis of the microbiota and gene expression data revealed that the maternal WS diet independently affected gene expression and microbiota composition. However, the abundance of bacterial families not affected by the WS diet (Bacteroidaceae, Porphyromonadaceae, and Lachnospiraceae) correlated with the expression of genes playing a key role in intestinal development and functioning (e.g. Pitx2 and Ace2). Conclusion Our data reveal that maternal consumption of a WS diet during the perinatal period alters both gene expression and microbiota composition in the intestinal tract of 2‐week‐old offspring.
Collapse
Affiliation(s)
- Wilma T Steegenga
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Mona Mischke
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Carolien Lute
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Mark V Boekschoten
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Agnes Lendvai
- Center for Liver, Digestive and Metabolic Diseases, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Maurien G M Pruis
- Center for Liver, Digestive and Metabolic Diseases, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Henkjan J Verkade
- Center for Liver, Digestive and Metabolic Diseases, Department of Pediatrics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | | | | | | | - Torsten Plösch
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Michael Müller
- Nutrigenomics and Systems Nutrition, Norwich Medical School, University of East Anglia, Norwich, UK
| | - Guido J E J Hooiveld
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| |
Collapse
|
91
|
Dwarkasing JT, Witkamp RF, Boekschoten MV, Ter Laak MC, Heins MS, van Norren K. Increased hypothalamic serotonin turnover in inflammation-induced anorexia. BMC Neurosci 2016; 17:26. [PMID: 27207102 PMCID: PMC4875640 DOI: 10.1186/s12868-016-0260-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 05/11/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Anorexia can occur as a serious complication of disease. Increasing evidence suggests that inflammation plays a major role, along with a hypothalamic dysregulation characterized by locally elevated serotonin levels. The present study was undertaken to further explore the connections between peripheral inflammation, anorexia and hypothalamic serotonin metabolism and signaling pathways. First, we investigated the response of two hypothalamic neuronal cell lines to TNFα, IL-6 and LPS. Next, we studied transcriptomic changes and serotonergic activity in the hypothalamus of mice after intraperitoneal injection with TNFα, IL-6 or a combination of TNFα and IL-6. RESULTS In vitro, we showed that hypothalamic neurons responded to inflammatory mediators by releasing cytokines. This inflammatory response was associated with an increased serotonin release. Mice injected with TNFα and IL-6 showed decreased food intake, associated with altered expression of inflammation-related genes in the hypothalamus. In addition, hypothalamic serotonin turnover showed to be elevated in treated mice. CONCLUSIONS Overall, our results underline that peripheral inflammation reaches the hypothalamus where it affects hypothalamic serotoninergic metabolism. These hypothalamic changes in serotonin pathways are associated with decreased food intake, providing evidence for a role of serotonin in inflammation-induced anorexia.
Collapse
Affiliation(s)
- J T Dwarkasing
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703HD, Wageningen, The Netherlands.
| | - R F Witkamp
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703HD, Wageningen, The Netherlands
| | - M V Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703HD, Wageningen, The Netherlands
| | - M C Ter Laak
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703HD, Wageningen, The Netherlands
| | - M S Heins
- Brains On-line, P.O. Box 4030, 9701 EA, Groningen, The Netherlands
| | - K van Norren
- Nutrition and Pharmacology Group, Division of Human Nutrition, Wageningen University, Bomenweg 2, 6703HD, Wageningen, The Netherlands
| |
Collapse
|
92
|
Chen L, Peng Z, Meng Q, Mongan M, Wang J, Sartor M, Chen J, Niu L, Medvedovic M, Kao W, Xia Y. Loss of IκB kinase β promotes myofibroblast transformation and senescence through activation of the ROS-TGFβ autocrine loop. Protein Cell 2016; 7:338-50. [PMID: 26946493 PMCID: PMC4853320 DOI: 10.1007/s13238-015-0241-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/01/2015] [Indexed: 12/22/2022] Open
Abstract
Using forward and reverse genetics and global gene expression analyses, we explored the crosstalk between the IκB kinase β (IKKβ) and the transforming growth factor β (TGFβ) signaling pathways. We show that in vitro ablation of Ikkβ in fibroblasts led to progressive ROS accumulation and TGFβ activation, and ultimately accelerated cell migration, fibroblast-myofibroblast transformation and senescence. Mechanistically, the basal IKKβ activity was required for anti-oxidant gene expression and redox homeostasis. Lacking this activity, IKKβ-null cells showed ROS accumulation and activation of stress-sensitive transcription factor AP-1/c-Jun. AP-1/c-Jun activation led to up-regulation of the Tgfβ2 promoter, which in turn further potentiated intracellular ROS through the induction of NADPH oxidase (NOX). These data suggest that by blocking the autocrine amplification of a ROS-TGFβ loop IKKβ plays a crucial role in the prevention of fibroblast-myofibroblast transformation and senescence.
Collapse
Affiliation(s)
- Liang Chen
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Zhimin Peng
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Qinghang Meng
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Maureen Mongan
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Jingcai Wang
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Maureen Sartor
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Jing Chen
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Liang Niu
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Mario Medvedovic
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Winston Kao
- Department of Ophthalmology, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA
| | - Ying Xia
- Department of Environmental Health and Center of Environmental Genetics, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA. .,Department of Ophthalmology, University of Cincinnati Medical Center, Cincinnati, OH, 45267, USA.
| |
Collapse
|
93
|
Sun Y, Gao Y, Sun J, Liu X, Ma D, Ma C, Wang Y. Expression profile analysis based on DNA microarray for patients undergoing off-pump coronary artery bypass surgery. Exp Ther Med 2016; 11:864-872. [PMID: 26998004 PMCID: PMC4774345 DOI: 10.3892/etm.2016.3003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 12/03/2015] [Indexed: 12/24/2022] Open
Abstract
Off-pump coronary artery bypass (OPCAB) surgery is the most effective treatment for coronary heart disease. The aim of this study was to explore the effects of OPCAB on the basis of the associated molecular mechanisms. GSE12486 expression profiles downloaded from the Gene Expression Omnibus database (GEO) were analyzed to identify the differentially expressed genes (DEGs). Principal component analysis (PCA) was conducted based on the expression profiles of DEGs. Function and pathway enrichment of upregulated DEGs was performed, followed by protein-protein interaction (PPI) network construction. Gene Set Enrichment Analysis (GSEA) was used for miRNA enrichment analysis based on expression profiles and prediction of their association with the disease. Cytoscape was applied to construct miRNA regulatory networks of DEGs. In total 64 DEGs were identified, including 63 upregulated and 1 downregulated gene. The first principal component in the PCA analysis was able to distinguish between pre- and post-OPCAB samples. Upregulated DEGs mainly enriched 20 Gene Ontology terms, such as chemokine activity, and 5 pathways including the chemokine signaling pathway. The constructed PPI network contained 234 edges and 55 nodes, and 10 upregulated hub nodes, including FBJ murine osteosarcoma viral oncogene homolog (FOS), were screened. A total of 36 miRNAs, including MIR-224 and MIR-7, were screened by GSEA enrichment analysis. A miRNA regulatory network including 176 edges and 97 nodes was constructed, showing the regulatory relationships between miRNAs and DEGs. For example, early growth response 2 (EGR2) was regulated by 8 miRNAs including MIR-150, MIR-142-3P, MIR-367 and MIR-224. The identified DEGs might play important roles in patients pre- and post-OPCAB surgery via the regulation of associated genes.
Collapse
Affiliation(s)
- Yunpeng Sun
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yongsheng Gao
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jingnan Sun
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xuguang Liu
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Dashi Ma
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Chunye Ma
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yong Wang
- Department of Cardiac Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| |
Collapse
|
94
|
O'Brien PD, Hur J, Robell NJ, Hayes JM, Sakowski SA, Feldman EL. Gender-specific differences in diabetic neuropathy in BTBR ob/ob mice. J Diabetes Complications 2016; 30:30-7. [PMID: 26525588 PMCID: PMC4698064 DOI: 10.1016/j.jdiacomp.2015.09.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Revised: 09/23/2015] [Accepted: 09/30/2015] [Indexed: 02/08/2023]
Abstract
AIMS To identify a female mouse model of diabetic peripheral neuropathy (DPN), we characterized DPN in female BTBR ob/ob mice and compared their phenotype to non-diabetic and gender-matched controls. We also identified dysregulated genes and pathways in sciatic nerve (SCN) and dorsal root ganglia (DRG) of female BTBR ob/ob mice to determine potential DPN mechanisms. METHODS Terminal neuropathy phenotyping consisted of examining latency to heat stimuli, sciatic motor and sural sensory nerve conduction velocities (NCV), and intraepidermal nerve fiber (IENF) density. For gene expression profiling, DRG and SCN were dissected, RNA was isolated and processed using microarray technology and differentially expressed genes were identified. RESULTS Similar motor and sensory NCV deficits were observed in male and female BTBR ob/ob mice at study termination; however, IENF density was greater in female ob/ob mice than their male counterparts. Male and female ob/ob mice exhibited similar weight gain, hyperglycemia, and hyperinsulinemia compared to non-diabetic controls, although triglycerides were elevated more so in males than in females. Transcriptional profiling of nerve tissue from female mice identified dysregulation of pathways related to inflammation. CONCLUSIONS Similar to males, female BTBR ob/ob mice display robust DPN, and pathways related to inflammation are dysregulated in peripheral nerve.
Collapse
Affiliation(s)
- Phillipe D O'Brien
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Junguk Hur
- Department of Basic Sciences, University of North Dakota, Grand Forks, ND 58203, USA
| | - Nicholas J Robell
- Department of Emergency Medicine, Henry Ford Hospital, Detroit, MI 48202, USA
| | - John M Hayes
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stacey A Sakowski
- A. Alfred Taubman Medical Research Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA.
| |
Collapse
|
95
|
Parikh SV, Malvar A, Song H, Alberton V, Lococo B, Vance J, Zhang J, Yu L, Rovin BH. Characterising the immune profile of the kidney biopsy at lupus nephritis flare differentiates early treatment responders from non-responders. Lupus Sci Med 2015; 2:e000112. [PMID: 26629350 PMCID: PMC4654163 DOI: 10.1136/lupus-2015-000112] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 08/12/2015] [Accepted: 09/02/2015] [Indexed: 01/22/2023]
Abstract
Introduction The kidney biopsy is used to diagnose and guide initial therapy in patients with lupus nephritis (LN). Kidney histology does not correlate well with clinical measurements of kidney injury or predict how patients will respond to standard-of-care immunosuppression. We postulated that the gene expression profile of kidney tissue at the time of biopsy may differentiate patients who will from those who will not respond to treatment. Methods The expression of 511 immune-response genes was measured in kidney biopsies from 19 patients with proliferative LN and 4 normal controls. RNA was extracted from formalin-fixed, paraffin-embedded kidney biopsies done at flare. After induction therapy, 5 patients achieved a complete clinical response (CR), 10 had a partial response (PR) and 4 patients were non-responders (NRs). Transcript expression was compared with normal controls and between renal response groups. Results A principal component analysis showed that intrarenal transcript expression from normal kidney, CR biopsies and NR biopsies segregated from each other. The top genes responsible for CR clustering included several interferon pathway genes (STAT1, IRF1, IRF7, MX1, STAT2, JAK2), while complement genes (C1R, C1QB, C6, C9, C5, MASP2) were mainly responsible for NR clustering. Overall, 35 genes were uniquely expressed in NR compared with CR. Pathway analysis revealed that interferon signalling and complement activation pathways were upregulated in both groups, while BAFF, APRIL, nuclear factor-κB and interleukin-6 signalling were increased in CR but suppressed in NR. Conclusions These data suggest that molecular profiling of the kidney biopsy at LN flare may be useful in predicting treatment response to induction therapy.
Collapse
Affiliation(s)
- Samir V Parikh
- Division of Nephrology , The Ohio State University Wexner Medical Center , Columbus, Ohio , USA
| | - Ana Malvar
- Nephrology Unit , Hospital Fernandez , Buenos Aires , Argentina
| | - Huijuan Song
- Division of Nephrology , The Ohio State University Wexner Medical Center , Columbus, Ohio , USA
| | - Valeria Alberton
- Department of Pathology , Hospital Fernandez , Buenos Aires , Argentina
| | - Bruno Lococo
- Nephrology Unit , Hospital Fernandez , Buenos Aires , Argentina
| | - Jay Vance
- Division of Nephrology , The Ohio State University Wexner Medical Center , Columbus, Ohio , USA
| | - Jianying Zhang
- Center for Biostatistics, The Ohio State University Wexner Medical Center , Columbus, Ohio , USA
| | - Lianbo Yu
- Nephrology Unit , Hospital Fernandez , Buenos Aires , Argentina
| | - Brad H Rovin
- Division of Nephrology , The Ohio State University Wexner Medical Center , Columbus, Ohio , USA
| |
Collapse
|
96
|
Janssen AWF, Betzel B, Stoopen G, Berends FJ, Janssen IM, Peijnenburg AA, Kersten S. The impact of PPARα activation on whole genome gene expression in human precision cut liver slices. BMC Genomics 2015; 16:760. [PMID: 26449539 PMCID: PMC4599789 DOI: 10.1186/s12864-015-1969-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 09/30/2015] [Indexed: 02/08/2023] Open
Abstract
Background Studies in mice have shown that PPARα is an important regulator of lipid metabolism in liver and key transcription factor involved in the adaptive response to fasting. However, much less is known about the role of PPARα in human liver. Methods Here we set out to study the function of PPARα in human liver via analysis of whole genome gene regulation in human liver slices treated with the PPARα agonist Wy14643. Results Quantitative PCR indicated that PPARα is well expressed in human liver and human liver slices and that the classical PPARα targets PLIN2, VLDLR, ANGPTL4, CPT1A and PDK4 are robustly induced by PPARα activation. Transcriptomics analysis indicated that 617 genes were upregulated and 665 genes were downregulated by PPARα activation (q value < 0.05). Many genes induced by PPARα activation were involved in lipid metabolism (ACSL5, AGPAT9, FADS1, SLC27A4), xenobiotic metabolism (POR, ABCC2, CYP3A5) or the unfolded protein response, whereas most of the downregulated genes were involved in immune-related pathways. Among the most highly repressed genes upon PPARα activation were several chemokines (e.g. CXCL9-11, CCL8, CX3CL1, CXCL6), interferon γ-induced genes (e.g. IFITM1, IFIT1, IFIT2, IFIT3) and numerous other immune-related genes (e.g. TLR3, NOS2, and LCN2). Comparative analysis of gene regulation by Wy14643 between human liver slices and primary human hepatocytes showed that down-regulation of gene expression by PPARα is much better captured by liver slices as compared to primary hepatocytes. In particular, PPARα activation markedly suppressed immunity/inflammation-related genes in human liver slices but not in primary hepatocytes. Finally, several putative new target genes of PPARα were identified that were commonly induced by PPARα activation in the two human liver model systems, including TSKU, RHOF, CA12 and VSIG10L. Conclusion Our paper demonstrates the suitability and superiority of human liver slices over primary hepatocytes for studying the functional role of PPARα in human liver. Our data underscore the major role of PPARα in regulation of hepatic lipid and xenobiotic metabolism in human liver and reveal a marked immuno-suppressive/anti-inflammatory effect of PPARα in human liver slices that may be therapeutically relevant for non-alcoholic fatty liver disease. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-1969-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Aafke W F Janssen
- Nutrition, Metabolism and Genomics Group, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
| | - Bark Betzel
- Department of Surgery, Rijnstate Hospital, Wagnerlaan 55, 6815 AD, Arnhem, The Netherlands.
| | - Geert Stoopen
- RIKILT-Institute of Food Safety, Wageningen UR, P.O. Box 230, 6700, AE, Wageningen, The Netherlands.
| | - Frits J Berends
- Department of Surgery, Rijnstate Hospital, Wagnerlaan 55, 6815 AD, Arnhem, The Netherlands.
| | - Ignace M Janssen
- Department of Surgery, Rijnstate Hospital, Wagnerlaan 55, 6815 AD, Arnhem, The Netherlands.
| | - Ad A Peijnenburg
- RIKILT-Institute of Food Safety, Wageningen UR, P.O. Box 230, 6700, AE, Wageningen, The Netherlands.
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.
| |
Collapse
|
97
|
Hur J, Dauch JR, Hinder LM, Hayes JM, Backus C, Pennathur S, Kretzler M, Brosius FC, Feldman EL. The Metabolic Syndrome and Microvascular Complications in a Murine Model of Type 2 Diabetes. Diabetes 2015; 64:3294-304. [PMID: 25979075 PMCID: PMC4542440 DOI: 10.2337/db15-0133] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 05/11/2015] [Indexed: 12/17/2022]
Abstract
To define the components of the metabolic syndrome that contribute to diabetic polyneuropathy (DPN) in type 2 diabetes mellitus (T2DM), we treated the BKS db/db mouse, an established murine model of T2DM and the metabolic syndrome, with the thiazolidinedione class drug pioglitazone. Pioglitazone treatment of BKS db/db mice produced a significant weight gain, restored glycemic control, and normalized measures of serum oxidative stress and triglycerides but had no effect on LDLs or total cholesterol. Moreover, although pioglitazone treatment normalized renal function, it had no effect on measures of large myelinated nerve fibers, specifically sural or sciatic nerve conduction velocities, but significantly improved measures of small unmyelinated nerve fiber architecture and function. Analyses of gene expression arrays of large myelinated sciatic nerves from pioglitazone-treated animals revealed an unanticipated increase in genes related to adipogenesis, adipokine signaling, and lipoprotein signaling, which likely contributed to the blunted therapeutic response. Similar analyses of dorsal root ganglion neurons revealed a salutary effect of pioglitazone on pathways related to defense and cytokine production. These data suggest differential susceptibility of small and large nerve fibers to specific metabolic impairments associated with T2DM and provide the basis for discussion of new treatment paradigms for individuals with T2DM and DPN.
Collapse
Affiliation(s)
- Junguk Hur
- Department of Neurology, University of Michigan, Ann Arbor, MI Department of Basic Sciences, University of North Dakota, School of Medicine and Health Sciences, Grand Forks, ND
| | | | - Lucy M Hinder
- Department of Neurology, University of Michigan, Ann Arbor, MI
| | - John M Hayes
- Department of Neurology, University of Michigan, Ann Arbor, MI
| | - Carey Backus
- Department of Neurology, University of Michigan, Ann Arbor, MI
| | - Subramaniam Pennathur
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Matthias Kretzler
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Frank C Brosius
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Eva L Feldman
- Department of Neurology, University of Michigan, Ann Arbor, MI
| |
Collapse
|
98
|
Alex S, Boss A, Heerschap A, Kersten S. Exercise training improves liver steatosis in mice. Nutr Metab (Lond) 2015; 12:29. [PMID: 26251667 PMCID: PMC4527189 DOI: 10.1186/s12986-015-0026-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 07/29/2015] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is rapidly turning into the most common liver disorder worldwide. One of the strategies that has been shown to effectively improve NAFLD is regular exercise, which seems to lower steatosis partly independent of weight loss. However, limited data are available about the mechanisms involved. The aim of the present study was to identify the mechanisms underlying the effect of regular exercise on liver steatosis. METHODS Non-obese male mice were rendered steatotic by feeding a sucrose-enriched choline-deficient diet. They were then subjected to daily treadmill running for three weeks, whereas the control mice remained sedentary. RESULTS Compared to the untrained mice, trained mice showed similar adipose tissue mass but had significantly reduced size of lipid droplets in the liver coupled with a reduction in liver triglyceride content (~30 %, P < 0.05). Levels of various plasma lipid parameters and plasma glucose were similar between the trained and untrained mice, whereas levels of hepatic glycogen were significantly higher in the trained mice. Hepatic triglyceride secretion rate and de novo lipogenesis were unchanged between the two sets of mice, as were indicators of lipolysis and autophagy. Finally, whole genome expression profiling indicated a mild stimulatory effect of exercise training on PPARα-mediated regulation of oxidative metabolism, including fatty acid oxidation. CONCLUSIONS Taken together, our study suggests that the lowering of hepatic steatosis by repeated exercise is likely due to activation of fuel oxidation pathways in liver.
Collapse
Affiliation(s)
- Sheril Alex
- Nutrition, Metabolism and Genomics Group, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Andreas Boss
- Department of Radiology, Radboud University Medical Center, Geert Grootplein 10, 6500 HB Nijmegen, The Netherlands
| | - Arend Heerschap
- Department of Radiology, Radboud University Medical Center, Geert Grootplein 10, 6500 HB Nijmegen, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| |
Collapse
|
99
|
Short-term cold acclimation improves insulin sensitivity in patients with type 2 diabetes mellitus. Nat Med 2015; 21:863-5. [PMID: 26147760 DOI: 10.1038/nm.3891] [Citation(s) in RCA: 397] [Impact Index Per Article: 44.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 05/27/2015] [Indexed: 12/13/2022]
Abstract
Cold exposure may be a potential therapy for diabetes by increasing brown adipose tissue (BAT) mass and activity. Here we report that 10 d of cold acclimation (14-15 °C) increased peripheral insulin sensitivity by ∼43% in eight type 2 diabetes subjects. Basal skeletal muscle GLUT4 translocation markedly increased, without effects on insulin signaling or AMP-activated protein kinase (AMPK) activation and only a minor increase in BAT glucose uptake.
Collapse
|
100
|
Lange K, Hugenholtz F, Jonathan MC, Schols HA, Kleerebezem M, Smidt H, Müller M, Hooiveld GJEJ. Comparison of the effects of five dietary fibers on mucosal transcriptional profiles, and luminal microbiota composition and SCFA concentrations in murine colon. Mol Nutr Food Res 2015; 59:1590-602. [PMID: 25914036 DOI: 10.1002/mnfr.201400597] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 03/16/2015] [Accepted: 03/18/2015] [Indexed: 12/14/2022]
Abstract
SCOPE The aim of our study was to investigate and compare the effects of five fibers on the mucosal transcriptome, together with alterations in the luminal microbiota composition and SCFA concentrations in the colon. METHODS AND RESULTS Mice were fed fibers that differed in carbohydrate composition or a control diet for 10 days. Colonic gene expression profiles and luminal microbiota composition were determined by microarray techniques, and integrated using multivariate statistics. Our data showed a distinct reaction of the host and microbiota to resistant starch, a fiber that was not completely fermented in the colon, whereas the other fibers induced similar responses on gene expression and microbiota. Consistent associations were revealed between fiber-induced enrichment of Clostridium cluster IV and XIVa representatives, and changes in mucosal expression of genes related to energy metabolism. The nuclear receptor PPAR-γ was predicted to be an important regulator of the mucosal responses. CONCLUSION Results of this exploratory study suggest that despite different sources and composition, fermentable fibers induce a highly similar mucosal response that may at least be partially governed by PPAR-γ.
Collapse
Affiliation(s)
- Katja Lange
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition, Wageningen University, Wageningen, the Netherlands.,Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands
| | - Floor Hugenholtz
- Laboratory of Microbiology, Wageningen University, Wageningen, the Netherlands.,Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands
| | - Melliana C Jonathan
- Laboratory of Food Chemistry, Wageningen University, Wageningen, the Netherlands
| | - Henk A Schols
- Laboratory of Food Chemistry, Wageningen University, Wageningen, the Netherlands.,TI Food and Nutrition, Wageningen, the Netherlands
| | - Michiel Kleerebezem
- Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands.,TI Food and Nutrition, Wageningen, the Netherlands.,Host-Microbe Interactomics, Wageningen University, Wageningen, the Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University, Wageningen, the Netherlands.,Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands.,TI Food and Nutrition, Wageningen, the Netherlands
| | - Michael Müller
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition, Wageningen University, Wageningen, the Netherlands.,Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition, Wageningen University, Wageningen, the Netherlands.,Netherlands Consortium for Systems Biology, Amsterdam, the Netherlands
| |
Collapse
|