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Li M, Ma Y. Robust estimation of mean-variance relation. Stat Med 2024; 43:419-434. [PMID: 37994214 DOI: 10.1002/sim.9970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/24/2023]
Abstract
Accurate assessment of the mean-variance relation can benefit subsequent analysis in biomedical research. However, in most biomedical data, both the true mean and the true variance are unavailable. Instead, raw data are typically used to allow forming sample mean and sample variance in practice. In addition, different experimental conditions sometimes cause a slightly different mean-variance relation from the majority of the data in the same data set. To address these issues, we propose a semiparametric estimator, where we treat the uncertainty in the sample mean as a measurement error problem, the uncertainty in the sample variance as model error, and use a mixture model to account for different mean-variance relations. Asymptotic normality of the proposed method is established and its finite sample properties are demonstrated by simulation studies. The data application shows that the proposed method produces sensible results compared with methods either ignoring the uncertainty in the sample means or ignoring the potential different mean-variance relations.
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Affiliation(s)
- Mushan Li
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Yanyuan Ma
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, USA
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2
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Klein Hazebroek M, Baars A, Mischke M, Oosting A, van Schothorst EM, Schipper L. Early-Life Exposure to Dietary Large Phospholipid-Coated Lipid Droplets Improves Markers of Metabolic and Immune Function in Adipose Tissue Later in Life in a Mouse Model. Mol Nutr Food Res 2024; 68:e2300470. [PMID: 37985953 DOI: 10.1002/mnfr.202300470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/11/2023] [Indexed: 11/22/2023]
Abstract
SCOPE Human milk (HM) is considered optimal nutrition for infants, beneficially programming adult health outcomes including reduced obesity risk. Early life exposure to infant formula with lipid droplets closely resembling the structural properties of HM lipid globules (Nuturis) attenuated white adipose tissue (WAT) accumulation in mice upon adult western-style diet (WSD) feeding. Here, the study aims to elucidate underlying mechanisms. METHODS AND RESULTS Mice are raised on control or Nuturis diets between postnatal days 16-42 followed by either standard diet or WSD for 16 weeks. While the adult body composition of mice on a standard diet is not significantly affected, Nuturis reduced adiposity in mice on WSD. Morphologically, mean adipocyte size is reduced in Nuturis-raised mice, independent of adult diet exposure, and WAT macrophage content is reduced, albeit not significantly. Transcriptomics of epididymal WAT indicate potential beneficial effects on energy metabolism and macrophage function by Nuturis. CONCLUSION Reduced adult adiposity by early life exposure to Nuturis appears to be associated with smaller adipocytes and alterations in WAT immune and energy metabolism. These results suggest that early modulation of WAT structure and/or function may contribute to the protective programming effects of the early-life Nuturis diet on later-life adiposity.
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Affiliation(s)
- Marlou Klein Hazebroek
- Danone Nutricia Research, Utrecht, 3584 CT, The Netherlands
- Human and Animal Physiology, Wageningen University, Wageningen, 6708 WD, The Netherlands
| | | | - Mona Mischke
- Danone Nutricia Research, Utrecht, 3584 CT, The Netherlands
| | | | - Evert M van Schothorst
- Human and Animal Physiology, Wageningen University, Wageningen, 6708 WD, The Netherlands
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3
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Ettetuani B, Chahboune R, Moussa A. Adjustment of p-value expression to ontology using machine learning for genetic prediction, prioritization, interaction, and its validation in glomerular disease. Front Genet 2023; 14:1215232. [PMID: 37900183 PMCID: PMC10603191 DOI: 10.3389/fgene.2023.1215232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/28/2023] [Indexed: 10/31/2023] Open
Abstract
The results of gene expression analysis based on p-value can be extracted and sorted by their absolute statistical significance and then applied to multiple similarity scores of their gene ontology (GO) terms to promote the combination and adjustment of these scores as essential predictive tasks for understanding biological/clinical pathways. The latter allows the possibility to assess whether certain aspects of gene function may be associated with other varieties of genes, to evaluate regulation, and to link them into networks that prioritize candidate genes for classification by applying machine learning techniques. We then detect significant genetic interactions based on our algorithm to validate the results. Finally, based on specifically selected tissues according to their normalized gene expression and frequencies of occurrence from their different biological and clinical inputs, a reported classification of genes under the subject category has validated the abstract (glomerular diseases) as a case study.
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Affiliation(s)
- Boutaina Ettetuani
- Systems and Data Engineering Team, National School of Applied Sciences, Abdelmalek Essaadi University, Tétouan, Morocco
| | - Rajaa Chahboune
- Life and Health Sciences Team, Faculty of Medicine and Pharmacy, Abdelmalek Essaadi University, Tétouan, Morocco
| | - Ahmed Moussa
- Systems and Data Engineering Team, National School of Applied Sciences, Abdelmalek Essaadi University, Tétouan, Morocco
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4
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Vucur M, Ghallab A, Schneider AT, Adili A, Cheng M, Castoldi M, Singer MT, Büttner V, Keysberg LS, Küsgens L, Kohlhepp M, Görg B, Gallage S, Barragan Avila JE, Unger K, Kordes C, Leblond AL, Albrecht W, Loosen SH, Lohr C, Jördens MS, Babler A, Hayat S, Schumacher D, Koenen MT, Govaere O, Boekschoten MV, Jörs S, Villacorta-Martin C, Mazzaferro V, Llovet JM, Weiskirchen R, Kather JN, Starlinger P, Trauner M, Luedde M, Heij LR, Neumann UP, Keitel V, Bode JG, Schneider RK, Tacke F, Levkau B, Lammers T, Fluegen G, Alexandrov T, Collins AL, Nelson G, Oakley F, Mann DA, Roderburg C, Longerich T, Weber A, Villanueva A, Samson AL, Murphy JM, Kramann R, Geisler F, Costa IG, Hengstler JG, Heikenwalder M, Luedde T. Sublethal necroptosis signaling promotes inflammation and liver cancer. Immunity 2023; 56:1578-1595.e8. [PMID: 37329888 DOI: 10.1016/j.immuni.2023.05.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 08/30/2022] [Accepted: 05/22/2023] [Indexed: 06/19/2023]
Abstract
It is currently not well known how necroptosis and necroptosis responses manifest in vivo. Here, we uncovered a molecular switch facilitating reprogramming between two alternative modes of necroptosis signaling in hepatocytes, fundamentally affecting immune responses and hepatocarcinogenesis. Concomitant necrosome and NF-κB activation in hepatocytes, which physiologically express low concentrations of receptor-interacting kinase 3 (RIPK3), did not lead to immediate cell death but forced them into a prolonged "sublethal" state with leaky membranes, functioning as secretory cells that released specific chemokines including CCL20 and MCP-1. This triggered hepatic cell proliferation as well as activation of procarcinogenic monocyte-derived macrophage cell clusters, contributing to hepatocarcinogenesis. In contrast, necrosome activation in hepatocytes with inactive NF-κB-signaling caused an accelerated execution of necroptosis, limiting alarmin release, and thereby preventing inflammation and hepatocarcinogenesis. Consistently, intratumoral NF-κB-necroptosis signatures were associated with poor prognosis in human hepatocarcinogenesis. Therefore, pharmacological reprogramming between these distinct forms of necroptosis may represent a promising strategy against hepatocellular carcinoma.
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Affiliation(s)
- Mihael Vucur
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany.
| | - Ahmed Ghallab
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University Dortmund, Dortmund, Germany; Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Anne T Schneider
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Arlind Adili
- Department of Chronic Inflammation and Cancer, German Cancer Research Institute (DKFZ), Heidelberg, Germany
| | - Mingbo Cheng
- Institute for Computational Genomics, RWTH Aachen University, Aachen, Germany
| | - Mirco Castoldi
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Michael T Singer
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Veronika Büttner
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Leonie S Keysberg
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Lena Küsgens
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Marlene Kohlhepp
- Department of Hepatology and Gastroenterology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Boris Görg
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Suchira Gallage
- Department of Chronic Inflammation and Cancer, German Cancer Research Institute (DKFZ), Heidelberg, Germany; The M3 Research Institute, Eberhard Karls University, Tübingen, Germany
| | - Jose Efren Barragan Avila
- Department of Chronic Inflammation and Cancer, German Cancer Research Institute (DKFZ), Heidelberg, Germany
| | - Kristian Unger
- Research Unit of Radiation Cytogenetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Claus Kordes
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Anne-Laure Leblond
- Department for pathology and molecular pathology, Zürich University Hospital, Zürich, Switzerland
| | - Wiebke Albrecht
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University Dortmund, Dortmund, Germany
| | - Sven H Loosen
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Carolin Lohr
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Markus S Jördens
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Anne Babler
- Institute of Experimental Medicine and Systems Biology and Department of Nephrology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Sikander Hayat
- Institute of Experimental Medicine and Systems Biology and Department of Nephrology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - David Schumacher
- Institute of Experimental Medicine and Systems Biology and Department of Nephrology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Maria T Koenen
- Department of Medicine, Rhein-Maas-Klinikum, Würselen, Germany
| | - Olivier Govaere
- Department of Imaging and Pathology, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Mark V Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Simone Jörs
- Second Department of Internal Medicine, Klinikum Rechts der Isar, Technische Universität München, Germany
| | - Carlos Villacorta-Martin
- Division of Liver Diseases, Liver Cancer Program, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vincenzo Mazzaferro
- Gastrointestinal Surgery and Liver Transplantation Unit, National Cancer Institute, University of Milan, Milan, Italy
| | - Josep M Llovet
- Division of Liver Diseases, Liver Cancer Program, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Liver Cancer Translational Research Laboratory, Barcelona-Clínic Liver Cancer Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Liver Unit, CIBEREHD, Hospital Clínic, Barcelona, Catalonia, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital RWTH Aachen, Aachen, Germany
| | - Jakob N Kather
- Else Kroener Fresenius Center for Digital Health, Medical Faculty Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Patrick Starlinger
- Department of Surgery, Division of Hepatobiliary and Pancreatic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Mark Luedde
- Department of Cardiology and Angiology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Lara R Heij
- Visceral and Transplant Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Ulf P Neumann
- Visceral and Transplant Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - Verena Keitel
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany; Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Magdeburg, Medical Faculty of Otto Von Guericke University Magdeburg, Magdeburg, Germany
| | - Johannes G Bode
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Rebekka K Schneider
- Department of Cell Biology, Institute for Biomedical Engineering, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Frank Tacke
- Department of Hepatology and Gastroenterology, Charité-Universitätsmedizin Berlin, Campus Virchow Klinikum and Campus Charité Mitte, Berlin, Germany
| | - Bodo Levkau
- Institute of Molecular Medicine III, University Hospital Dusseldorf, Heinrich Heine University, Dusseldorf, Germany
| | - Twan Lammers
- Department of Nanomedicine and Theranostics, Institute for Experimental Molecular Imaging, Faculty of Medicine, RWTH Aachen University, Aachen, Germany
| | - Georg Fluegen
- Department of Surgery (A), University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University, Dusseldorf, Germany
| | - Theodore Alexandrov
- Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany
| | - Amy L Collins
- Newcastle Fibrosis Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Glyn Nelson
- Newcastle Fibrosis Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Fiona Oakley
- Newcastle Fibrosis Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Derek A Mann
- Newcastle Fibrosis Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Christoph Roderburg
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany
| | - Thomas Longerich
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Achim Weber
- Department for pathology and molecular pathology, Zürich University Hospital, Zürich, Switzerland
| | - Augusto Villanueva
- Division of Liver Diseases, Liver Cancer Program, Department of Medicine, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Division of Hematology and Medical Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andre L Samson
- The Walter and Eliza Hall Institute, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - James M Murphy
- The Walter and Eliza Hall Institute, Parkville, VIC, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Rafael Kramann
- Institute of Experimental Medicine and Systems Biology and Department of Nephrology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Fabian Geisler
- Second Department of Internal Medicine, Klinikum Rechts der Isar, Technische Universität München, Germany
| | - Ivan G Costa
- Institute for Computational Genomics, RWTH Aachen University, Aachen, Germany
| | - Jan G Hengstler
- Leibniz Research Centre for Working Environment and Human Factors (IfADo), Technical University Dortmund, Dortmund, Germany
| | - Mathias Heikenwalder
- Department of Chronic Inflammation and Cancer, German Cancer Research Institute (DKFZ), Heidelberg, Germany; The M3 Research Institute, Eberhard Karls University, Tübingen, Germany
| | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Dusseldorf, Medical Faculty at Heinrich Heine University Dusseldorf, Dusseldorf, Germany.
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5
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DiVincenzo MJ, Angell CD, Suarez-Kelly LP, Ren C, Barricklow Z, Moufawad M, Fadda P, Yu L, Backes FJ, Ring K, Mills A, Slingluff C, Chung C, Gru AA, Carson WE. Expression of microRNAs and their target genes in melanomas originating from gynecologic sites. PLoS One 2023; 18:e0285804. [PMID: 37384650 PMCID: PMC10309992 DOI: 10.1371/journal.pone.0285804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/01/2023] [Indexed: 07/01/2023] Open
Abstract
Melanomas from gynecologic sites (MOGS) are rare and have poor survival. MicroRNAs (miRs) regulate gene expression and are dysregulated in cancer. We hypothesized that MOGS would display unique miR and mRNA expression profiles. The miR and mRNA expression profile in RNA from formalin fixed, paraffin embedded vaginal melanomas (relative to vaginal mucosa) and vulvar melanomas (relative to cutaneous melanoma) were measured with the Nanostring Human miRNA assay and Tumor Signaling mRNA assay. Differential patterns of expression were identified for 21 miRs in vaginal and 47 miRs in vulvar melanoma (fold change >2, p<0.01). In vaginal melanoma, miR-145-5p (tumor suppressor targeting TLR4, NRAS) was downregulated and miR-106a-5p, miR-17-5p, miR-20b-5p (members of miR-17-92 cluster) were upregulated. In vulvar melanoma, known tumor suppressors miR-200b-3p and miR-200a-3p were downregulated, and miR-20a-5p and miR-19b-3p, from the miR-17-92 cluster, were upregulated. Pathway analysis showed an enrichment of "proteoglycans in cancer". Among differentially expressed mRNAs, topoisomerase IIα (TOP2A) was upregulated in both MOGS. Gene targets of dysregulated miRs were identified using publicly available databases and Pearson correlations. In vaginal melanoma, suppressor of cytokine signaling 3 (SOCS3) was downregulated, was a validated target of miR-19b-3p and miR-20a-5p and trended toward a significant inverse Pearson correlation with miR-19b-3p (p = 0.093). In vulvar melanoma, cyclin dependent kinase inhibitor 1A (CDKN1A) was downregulated, was the validated target of 22 upregulated miRs, and had a significant inverse Pearson correlation with miR-503-5p, miR-130a-3p, and miR-20a-5p (0.005 < p < 0.026). These findings support microRNAs as mediators of gene expression in MOGS.
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Affiliation(s)
- Mallory J. DiVincenzo
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, United States of America
| | - Colin D. Angell
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Lorena P. Suarez-Kelly
- Division of Surgical Oncology, The Ohio State University, Columbus, OH, United States of America
| | - Casey Ren
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Zoe Barricklow
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Maribelle Moufawad
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Paolo Fadda
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Lianbo Yu
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Floor J. Backes
- Division of Gynecologic Oncology, The Ohio State University, Columbus, OH, United States of America
| | - Kari Ring
- Division of Gynecologic Oncology, University of Virginia, Charlottesville, VA, United States of America
| | - Anne Mills
- Department of Pathology, University of Virginia, Charlottesville, VA, United States of America
| | - Craig Slingluff
- Department of Surgery, University of Virginia, Charlottesville, VA, United States of America
| | - Catherine Chung
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
| | - Alejandro A. Gru
- Department of Pathology, University of Virginia, Charlottesville, VA, United States of America
| | - William E. Carson
- The Arthur G. James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, United States of America
- Division of Surgical Oncology, The Ohio State University, Columbus, OH, United States of America
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6
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DiVincenzo MJ, Schwarz E, Ren C, Barricklow Z, Moufawad M, Yu L, Fadda P, Angell C, Sun S, Howard JH, Chung C, Slingluff C, Gru AA, Kendra K, Carson WE. Expression Patterns of microRNAs and Associated Target Genes in Ulcerated Primary Cutaneous Melanoma. J Invest Dermatol 2023; 143:630-638.e3. [PMID: 36202232 DOI: 10.1016/j.jid.2022.09.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/30/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022]
Abstract
Ulcerated cutaneous melanoma carries a poor prognosis, and the underlying biology driving its aggressive behavior is largely unexplored. MicroRNAs (miRs) are small, noncoding RNAs that inhibit the expression of specific genes and exhibit dysregulated expression patterns in cancer. We hypothesized that a unique miR profile exists in ulcerated relative to nonulcerated melanoma and that miR expression inversely correlates with target genes of biologic importance. Expression of miRs and mRNAs was assessed in ulcerated and nonulcerated cutaneous melanomas using the NanoString Human miRNA and Tumor Signaling 360 mRNA assays and validated in an independent cohort. Pathway enrichment and functional annotations for differentially expressed miRs and mRNAs were determined using publicly available databases. Pearson correlations were employed to predict potential miR‒mRNA binding pairs. Ulcerated melanoma tissue showed at least 1.5-fold change in relative expression of 24 miRs, including miR-206, miR-1-3p, and miR-4286 (>2.25-fold decrease, P < 0.048) and miR-146a-5p, miR-196b-5p, and miR-363-3p (>2.5-fold increase, P < 0.014). Ulcerated melanomas also had 21 differentially expressed mRNAs relative to nonulcerated tumors (P < 0.01), among which two had an inverse correlation in expression with regulatory miRs (SOCS3 and miR-218-5p and IL7R and miR-376c-5p). This miR expression profile adds to the molecular characterization of the poorly understood histopathologic phenotype of ulcerated melanoma.
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Affiliation(s)
- Mallory J DiVincenzo
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA; Department of Veterinary Biosciences, The Ohio State University, Columbus, Ohio, USA
| | - Emily Schwarz
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Casey Ren
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Zoe Barricklow
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Maribelle Moufawad
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Lianbo Yu
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Paolo Fadda
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Colin Angell
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Steven Sun
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - J Harrison Howard
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Catherine Chung
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Craig Slingluff
- Surgical Oncology Division, UVA Department of Surgery, University of Virginia, Charlottesville, Virginia, USA
| | - Alejandro A Gru
- Department of Pathology, School of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Kari Kendra
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - William E Carson
- The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio, USA.
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7
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Kuwabara R, Qin T, Alberto Llacua L, Hu S, Boekschoten MV, de Haan BJ, Smink AM, de Vos P. Extracellular matrix inclusion in immunoisolating alginate-based microcapsules promotes longevity, reduces fibrosis, and supports function of islet allografts in vivo. Acta Biomater 2023; 158:151-162. [PMID: 36610609 DOI: 10.1016/j.actbio.2022.12.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023]
Abstract
Immunoisolation of pancreatic-islets in alginate-microcapsules is applied to treat diabetes. However, long-term islet function is limited, which might be due to damaged and lack of contact with pancreatic extracellular matrix (ECM) components. Herein we investigated the impact of collagen IV combined with laminin sequences, either RGD, LRE, or PDSGR, on graft-survival of microencapsulated bioluminescent islets in vivo. Collagen IV with RGD had the most pronounced effect. It enhanced after 8-week implantation in immune-incompetent mice the bioluminescence of allogeneic islets by 3.2-fold, oxygen consumption rate by 14.3-fold and glucose-induced insulin release by 9.6-fold. Transcriptomics demonstrated that ECM enhanced canonical pathways involving insulin-secretion and that it suppressed pathways related to inflammation and hypoxic stress. Also, 5.8-fold fewer capsules were affected by fibrosis. In a subsequent longevity study in immune-competent mice, microencapsulated allografts containing collagen IV and RGD had a 2.4-fold higher functionality in the first week after implantation and remained at least 2.1-fold higher during the study. Islets in microcapsules containing collagen IV and RGD survived 211 ± 24.1 days while controls survived 125 ± 19.7 days. Our findings provide in vivo evidence for the efficacy of supplementing immunoisolating devices with specific ECM components to enhance functionality and longevity of islet-grafts in vivo. STATEMENT OF SIGNIFICANCE: Limitations in duration of survival of immunoisolated pancreatic islet grafts is a major obstacle for application of the technology to treat diabetes. Accumulating evidence supports that incorporation of extracellular matrix (ECM) molecules in the capsules enhances longevity of pancreatic islets. After selection of the most efficacious laminin sequence in vitro, we show in vivo that inclusion of collagen IV and RGD in alginate-based microcapsules enhances survival, insulin secretion function, and mitochondrial function. It also suppresses fibrosis by lowering proinflammatory cytokines secretion. Moreover, transcriptomic analysis shows that ECM-inclusion promotes insulin-secretion related pathways and attenuates inflammation and hypoxic stress related pathways in islets. We show that inclusion of ECM in immunoisolating devices is a promising strategy to promote long-term survival of islet-grafts.
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Affiliation(s)
- Rei Kuwabara
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands; Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Tian Qin
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands.
| | - L Alberto Llacua
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands
| | - Shuxian Hu
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands
| | - Mark V Boekschoten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, Wageningen 6708 WE, the Netherlands
| | - Bart J de Haan
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands
| | - Alexandra M Smink
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands
| | - Paul de Vos
- Section Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, and University Medical Center Groningen, Hanzeplein 1, EA 11, Groningen 9713 GZ, the Netherlands
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8
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Parikh SV, Malvar A, Song H, Shapiro J, Mejia-Vilet JM, Ayoub I, Almaani S, Madhavan S, Alberton V, Besso C, Lococo B, Satoskar A, Zhang J, Yu L, Fadda P, Eadon M, Birmingham D, Ganesan LP, Jarjour W, Rovin BH. Molecular profiling of kidney compartments from serial biopsies differentiate treatment responders from non-responders in lupus nephritis. Kidney Int 2022; 102:845-865. [PMID: 35788359 PMCID: PMC9613357 DOI: 10.1016/j.kint.2022.05.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/29/2022]
Abstract
The immune pathways that define treatment response and non-response in lupus nephritis (LN) are unknown. To characterize these intra-kidney pathways, transcriptomic analysis was done on protocol kidney biopsies obtained at flare (initial biopsy (Bx1)) and after treatment (second biopsy (Bx2)) in 58 patients with LN. Glomeruli and tubulointerstitial compartments were isolated using laser microdissection. RNA was extracted and analyzed by nanostring technology with transcript expression from clinically complete responders, partial responders and non-responders compared at Bx1 and Bx2 and to the healthy controls. Top transcripts that differentiate clinically complete responders from non-responders were validated at the protein level by confocal microscopy and urine ELISA. At Bx1, cluster analysis determined that glomerular integrin, neutrophil, chemokines/cytokines and tubulointerstitial chemokines, T cell and leukocyte adhesion genes were able to differentiate non-responders from clinically complete responders. At Bx2, glomerular monocyte, extracellular matrix, and interferon, and tubulointerstitial interferon, complement, and T cell transcripts differentiated non-responders from clinically complete responders. Protein analysis identified several protein products of overexpressed glomerular and tubulointerstitial transcripts at LN flare, recapitulating top transcript findings. Urine complement component 5a and fibronectin-1 protein levels reflected complement and fibronectin expression at flare and after treatment. Thus, transcript analysis of serial LN kidney biopsies demonstrated how gene expression in the kidney changes with clinically successful and unsuccessful therapy. Hence, these insights into the molecular landscape of response and non-response may help align LN management with the pathogenesis of kidney injury.
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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
| | - John Shapiro
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Juan Manuel Mejia-Vilet
- Department of Nephrology and Mineral Metabolism, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico City, Mexico; Department of Pathology, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Mexico City, Mexico
| | - Isabelle Ayoub
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Salem Almaani
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Sethu Madhavan
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Valeria Alberton
- Department of Pathology, Hospital Fernandez, Buenos Aires, Argentina
| | - Celeste Besso
- Department of Pathology, Hospital Fernandez, Buenos Aires, Argentina
| | - Bruno Lococo
- Nephrology Unit, Hospital Fernandez, Buenos Aires, Argentina
| | - Anjali Satoskar
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Jianying Zhang
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Lianbo Yu
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Paolo Fadda
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Michael Eadon
- Department of Medicine, Indiana University, Indianapolis, Indiana, USA
| | - Dan Birmingham
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Latha P Ganesan
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Wael Jarjour
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Brad H Rovin
- Division of Nephrology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
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9
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Mengeste AM, Nikolić N, Dalmao Fernandez A, Feng YZ, Nyman TA, Kersten S, Haugen F, Kase ET, Aas V, Rustan AC, Thoresen GH. Insight Into the Metabolic Adaptations of Electrically Pulse-Stimulated Human Myotubes Using Global Analysis of the Transcriptome and Proteome. Front Physiol 2022; 13:928195. [PMID: 35874526 PMCID: PMC9298736 DOI: 10.3389/fphys.2022.928195] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/15/2022] [Indexed: 12/02/2022] Open
Abstract
Electrical pulse stimulation (EPS) has proven to be a useful tool to interrogate cell-specific responses to muscle contraction. In the present study, we aimed to uncover networks of signaling pathways and regulatory molecules responsible for the metabolic effects of exercise in human skeletal muscle cells exposed to chronic EPS. Differentiated myotubes from young male subjects were exposed to EPS protocol 1 (i.e. 2 ms, 10 V, and 0.1 Hz for 24 h), whereas myotubes from middle-aged women and men were exposed to protocol 2 (i.e. 2 ms, 30 V, and 1 Hz for 48 h). Fuel handling as well as the transcriptome, cellular proteome, and secreted proteins of EPS-treated myotubes from young male subjects were analyzed using a combination of high-throughput RNA sequencing, high-resolution liquid chromatography-tandem mass spectrometry, oxidation assay, and immunoblotting. The data showed that oxidative metabolism was enhanced in EPS-exposed myotubes from young male subjects. Moreover, a total of 81 differentially regulated proteins and 952 differentially expressed genes (DEGs) were observed in these cells after EPS protocol 1. We also found 61 overlapping genes while comparing the DEGs to mRNA expression in myotubes from the middle-aged group exposed to protocol 2, assessed by microarray. Gene ontology (GO) analysis indicated that significantly regulated proteins and genes were enriched in biological processes related to glycolytic pathways, positive regulation of fatty acid oxidation, and oxidative phosphorylation, as well as muscle contraction, autophagy/mitophagy, and oxidative stress. Additionally, proteomic identification of secreted proteins revealed extracellular levels of 137 proteins were changed in myotubes from young male subjects exposed to EPS protocol 1. Selected putative myokines were measured using ELISA or multiplex assay to validate the results. Collectively, our data provides new insight into the transcriptome, proteome and secreted proteins alterations following in vitro exercise and is a valuable resource for understanding the molecular mechanisms and regulatory molecules mediating the beneficial metabolic effects of exercise.
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Affiliation(s)
- Abel M Mengeste
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Nataša Nikolić
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Andrea Dalmao Fernandez
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Yuan Z Feng
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Tuula A Nyman
- Department of Immunology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Sander Kersten
- Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Fred Haugen
- Department of Work Psychology and Physiology, STAMI-The National Institute of Occupational Health, Oslo, Norway
| | - Eili Tranheim Kase
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - Vigdis Aas
- Department of Life Sciences and Health, Faculty of Health Sciences, OsloMet-Oslo Metropolitan University, Oslo, Norway
| | - Arild C Rustan
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway
| | - G Hege Thoresen
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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10
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Chen Y, Chen S, Lei EP. DiffChIPL: a differential peak analysis method for high-throughput sequencing data with biological replicates based on limma. Bioinformatics 2022; 38:4062-4069. [PMID: 35809062 PMCID: PMC9438959 DOI: 10.1093/bioinformatics/btac498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/20/2022] [Accepted: 07/08/2022] [Indexed: 12/24/2022] Open
Abstract
MOTIVATION ChIP-seq detects protein-DNA interactions within chromatin, such as that of chromatin structural components and transcription machinery. ChIP-seq profiles are often noisy and variable across replicates, posing a challenge to the development of effective algorithms to accurately detect differential peaks. Methods have recently been designed for this purpose but sometimes yield conflicting results that are inconsistent with the underlying biology. Most existing algorithms perform well on limited datasets. To improve differential analysis of ChIP-seq, we present a novel Differential analysis method for ChIP-seq based on Limma (DiffChIPL). RESULTS DiffChIPL is adaptive to asymmetrical or symmetrical data and can accurately report global differences. We used simulated and real datasets for transcription factors (TFs) and histone modification marks to validate and benchmark our algorithm. DiffChIPL shows superior performance in sensitivity and false positive rate in different simulations and control datasets. DiffChIPL also performs well on real ChIP-seq, CUT&RUN, CUT&Tag and ATAC-seq datasets. DiffChIPL is an accurate and robust method, exhibiting better performance in differential analysis for a variety of applications including TF binding, histone modifications and chromatin accessibility. AVAILABILITY AND IMPLEMENTATION https://github.com/yancychy/DiffChIPL. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Yang Chen
- Nuclear Organization and Gene Expression Section, Laboratory of Biochemistry and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Shue Chen
- Nuclear Organization and Gene Expression Section, Laboratory of Biochemistry and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, MD, USA
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11
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Chen H, Tu S, Yuan C, Tian F, Zhang Y, Sun Y, Shao Z. HyperChIP: identification of hypervariable signals across ChIP-seq or ATAC-seq samples. Genome Biol 2022; 23:62. [PMID: 35227282 PMCID: PMC8883642 DOI: 10.1186/s13059-022-02627-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/07/2022] [Indexed: 12/13/2022] Open
Abstract
Identifying genomic regions with hypervariable ChIP-seq or ATAC-seq signals across given samples is essential for large-scale epigenetic studies. In particular, the hypervariable regions across tumors from different patients indicate their heterogeneity and can contribute to revealing potential cancer subtypes and the associated epigenetic markers. We present HyperChIP as the first complete statistical tool for the task. HyperChIP uses scaled variances that account for the mean-variance dependence to rank genomic regions, and it increases the statistical power by diminishing the influence of true hypervariable regions on model fitting. A pan-cancer case study illustrates the practical utility of HyperChIP.
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12
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Kulthong K, Hooiveld GJEJ, Duivenvoorde LPM, Miro Estruch I, Bouwmeester H, van der Zande M. Comparative study of the transcriptomes of Caco-2 cells cultured under dynamic vs. static conditions following exposure to titanium dioxide and zinc oxide nanomaterials. Nanotoxicology 2022; 15:1233-1252. [PMID: 35077654 DOI: 10.1080/17435390.2021.2012609] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Due to the widespread application of food-relevant inorganic nanomaterials, the gastrointestinal tract is potentially exposed to these materials. Gut-on-chip in vitro systems are proposed for the investigation of compound toxicity as they better recapitulate the in vivo human intestinal environment than static models, due to the added shear stresses associated with the flow of the medium. We aimed to compare cellular responses of intestinal epithelial Caco-2 cells at the gene expression level upon TiO2 (E171) and ZnO (NM110) nanomaterial exposure when cultured under dynamic and conventionally applied static conditions. Whole-genome transcriptome analyses upon exposure of the cells to TiO2 and ZnO nanomaterials revealed differentially expressed genes and related biological processes that were culture condition specific. The total number of differentially expressed genes (p < 0.01) and affected pathways (p < 0.05 and FDR < 0.25) after nanomaterial exposure was higher under dynamic culture conditions than under static conditions for both nanomaterials. The observed increase in nanomaterial-induced responses in the gut-on-chip model indicates that shear stress might be a major factor in cell susceptibility. This is the first report on the application of a gut-on-chip system in which gene expression responses upon TiO2 and ZnO nanomaterial exposure are evaluated and compared to a static system. It extends current knowledge on nanomaterial toxicity assessment and the influence of a dynamic environment on cellular responses. Application of the gut-on-chip system resulted in higher sensitivity of the cells and might thus be an attractive system for use in the toxicological hazard characterization of nanomaterials.
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Affiliation(s)
- Kornphimol Kulthong
- Division of Toxicology, Wageningen University, Wageningen, Netherlands.,Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands.,National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, Netherlands
| | - Loes P M Duivenvoorde
- Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands
| | | | - Hans Bouwmeester
- Division of Toxicology, Wageningen University, Wageningen, Netherlands
| | - Meike van der Zande
- Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, Netherlands
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13
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Modulating Oxidative Stress in B Cells Promotes Immunotherapy in Food Allergy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3605977. [PMID: 35096267 PMCID: PMC8799367 DOI: 10.1155/2022/3605977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/23/2021] [Accepted: 12/29/2021] [Indexed: 11/18/2022]
Abstract
Allergen-specific immunotherapy (SIT) is the mainstay in the treatment of allergic diseases; its therapeutic efficacy is to be improved. Bacterial flagellin (FGN) has immune regulatory functions. This study investigates the role of FGN in promoting immunotherapy efficacy through modulating oxidative stress in regulatory B cells (Bregs). Blood samples were collected from patients with food allergy (FA) and healthy control (HC) subjects. CD19+ CD5+ Bregs were purified from blood samples by flow cytometry cell sorting. A murine FA model was developed with ovalbumin as the specific antigen. The results showed that peripheral Bregs from FA patients showed lower TLR5-related signals and higher apoptotic activities. The peripheral Breg frequency was negatively correlated with serum FGN levels in FA patients. Exposure to a specific antigen in culture induced antigen-specific Breg apoptosis that was counteracted by the presence of FGN. FGN diminished specific antigen-induced oxidative stress in Bregs. The STAT3/MAPKp38/NF-κB signal pathway was involved in the FGN/TLR5 signal-promoted superoxide dismutase expression in Bregs. Administration of FGN promotes the SIT efficacy in suppressing experimental FA. In summary, administration of FGN promotes SIT efficacy on FA, suggesting that the combination of FGN and SIT can be a novel therapy that has the translational potential to be employed in the treatment of allergic diseases.
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14
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Elzinga J, van der Lugt B, Belzer C, Steegenga WT. Characterization of increased mucus production of HT29-MTX-E12 cells grown under Semi-Wet interface with Mechanical Stimulation. PLoS One 2021; 16:e0261191. [PMID: 34928974 PMCID: PMC8687553 DOI: 10.1371/journal.pone.0261191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 11/24/2021] [Indexed: 12/29/2022] Open
Abstract
The intestinal mucus layer plays a crucial role in human health. To study intestinal mucus function and structure in vitro, the mucus-producing intestinal cell line HT29-MTX-E12 has been commonly used. However, this cell line produces only low amounts of the intestine-specific MUC2. It has been shown previously that HT29-MTX-E12 cells cultured under Semi-Wet interface with Mechanical Stimulation (SWMS) produced higher amounts of MUC2, concomitant with a thicker mucus layer, compared to cells cultured conventionally. However, it remains unknown which underlying pathways are involved. Therefore, we aimed to further explore the cellular processes underlying the increased MUC2 production by HT29-MTX-E12 cells grown under SWMS conditions. Cells grown on Transwell membranes for 14 days under static and SWMS conditions (after cell seeding and attachment) were subjected to transcriptome analysis to investigate underlying molecular pathways at gene expression level. Caco-2 and LS174T cell lines were included as references. We characterized how SWMS conditions affected HT29-MTX-E12 cells in terms of epithelial barrier integrity, by measuring transepithelial electrical resistance, and cell metabolism, by monitoring pH and lactate production per molecule glucose of the conditioned medium. We confirmed higher MUC2 production under SWMS conditions at gene and protein level and demonstrated that this culturing method primarily stimulated cell growth. In addition, we also found evidence for a more aerobic cell metabolism under SWMS, as shown previously for similar models. In summary, we suggest different mechanisms by which MUC2 production is enhanced under SWMS and propose potential applications of this model in future studies.
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Affiliation(s)
- Janneke Elzinga
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Benthe van der Lugt
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
| | - Clara Belzer
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Wilma T Steegenga
- Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, The Netherlands
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15
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Vaddepalli P, de Zeeuw T, Strauss S, Bürstenbinder K, Liao CY, Ramalho JJ, Smith RS, Weijers D. Auxin-dependent control of cytoskeleton and cell shape regulates division orientation in the Arabidopsis embryo. Curr Biol 2021; 31:4946-4955.e4. [PMID: 34610273 PMCID: PMC8612740 DOI: 10.1016/j.cub.2021.09.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 07/22/2021] [Accepted: 09/07/2021] [Indexed: 11/25/2022]
Abstract
Premitotic control of cell division orientation is critical for plant development, as cell walls prevent extensive cell remodeling or migration. While many divisions are proliferative and add cells to existing tissues, some divisions are formative and generate new tissue layers or growth axes. Such formative divisions are often asymmetric in nature, producing daughters with different fates. We have previously shown that, in the Arabidopsis thaliana embryo, developmental asymmetry is correlated with geometric asymmetry, creating daughter cells of unequal volume. Such divisions are generated by division planes that deviate from a default “minimal surface area” rule. Inhibition of auxin response leads to reversal to this default, yet the mechanisms underlying division plane choice in the embryo have been unclear. Here, we show that auxin-dependent division plane control involves alterations in cell geometry, but not in cell polarity axis or nuclear position. Through transcriptome profiling, we find that auxin regulates genes controlling cell wall and cytoskeleton properties. We confirm the involvement of microtubule (MT)-binding proteins in embryo division control. Organization of both MT and actin cytoskeleton depends on auxin response, and genetically controlled MT or actin depolymerization in embryos leads to disruption of asymmetric divisions, including reversion to the default. Our work shows how auxin-dependent control of MT and actin cytoskeleton properties interacts with cell geometry to generate asymmetric divisions during the earliest steps in plant development. Auxin responses regulate directional cell expansion in Arabidopsis embryos Cell shape and division orientation are tightly coupled Transcriptome analysis identifies MT-associated IQD proteins in division control Cytoskeletal dynamics control division orientation
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Affiliation(s)
- Prasad Vaddepalli
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands.
| | - Thijs de Zeeuw
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - Sören Strauss
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, Germany
| | - Katharina Bürstenbinder
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Weinberg 3, Halle (Saale), Germany
| | - Che-Yang Liao
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - João Jacob Ramalho
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands
| | - Richard S Smith
- Department of Comparative Development and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, Germany; John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University, Stippeneng 4, 6708 Wageningen, the Netherlands.
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16
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van der Ende M, Plas RLC, van Dijk M, Dwarkasing JT, van Gemerden F, Sarokhani A, Swarts HJM, van Schothorst EM, Grefte S, Witkamp RF, van Norren K. Effects of whole-body vibration training in a cachectic C26 mouse model. Sci Rep 2021; 11:21563. [PMID: 34732809 PMCID: PMC8566567 DOI: 10.1038/s41598-021-98665-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 07/20/2021] [Indexed: 12/02/2022] Open
Abstract
Targeted exercise combined with nutritional and pharmacological strategies is commonly considered to be the most optimal strategy to reduce the development and progression of cachexia. For COPD patients, this multi-targeted treatment has shown beneficial effects. However, in many, physical activity is seriously hampered by frailty and fatigue. In the present study, effects of whole-body-vibration-training (WBV) were investigated, as potential alternative to active exercise, on body mass, muscle mass and function in tumour bearing mice. Twenty-four male CD2F1-mice (6–8 weeks, 21.5 ± 0.2 g) were stratified into four groups: control, control + WBV, C26 tumour-bearing, and C26 tumour-bearing + WBV. From day 1, whole-body-vibration was daily performed for 19 days (15 min, 45 Hz, 1.0 g acceleration). General outcome measures included body mass and composition, daily activity, blood analysis, assessments of muscle histology, function, and whole genome gene expression in m. soleus (SOL), m. extensor digitorum longus (EDL), and heart. Body mass, lean and fat mass and EDL mass were all lower in tumour bearing mice compared to controls. Except from improved contractility in SOL, no effects of vibration training were found on cachexia related general outcomes in control or tumour groups, as PCA analysis did not result in a distinction between corresponding groups. However, analysis of transcriptome data clearly revealed a distinction between tumour and trained tumour groups. WBV reduced the tumour-related effects on muscle gene expression in EDL, SOL and heart. Gene Set Enrichment Analysis showed that these effects were associated with attenuation of the upregulation of the proteasome pathway in SOL. These data suggest that WBV had minor effects on cachexia related general outcomes in the present experimental set-up, while muscle transcriptome showed changes associated with positive effects. This calls for follow-up studies applying longer treatment periods of WBV as component of a multiple-target intervention.
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Affiliation(s)
- Miranda van der Ende
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands.,Human and Animal Physiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Rogier L C Plas
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Miriam van Dijk
- Nutricia Research, Nutricia Advanced Medical Nutrition, Utrecht, The Netherlands
| | - Jvalini T Dwarkasing
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Frans van Gemerden
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Attusa Sarokhani
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Hans J M Swarts
- Human and Animal Physiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Evert M van Schothorst
- Human and Animal Physiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Sander Grefte
- Human and Animal Physiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Renger F Witkamp
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands
| | - Klaske van Norren
- Division Human Nutrition and Health, Nutritional Biology and Health, Wageningen University & Research, Wageningen, The Netherlands.
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17
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Krumm CS, Xu X, Bare CJ, Holman CD, Kersten S, Dow LE, Lee AH, Cohen DE. Inducible hepatic expression of CREBH mitigates diet-induced obesity, insulin resistance, and hepatic steatosis in mice. J Biol Chem 2021; 297:100815. [PMID: 34023388 PMCID: PMC8246594 DOI: 10.1016/j.jbc.2021.100815] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/29/2021] [Accepted: 05/17/2021] [Indexed: 12/12/2022] Open
Abstract
Cyclic AMP-responsive element-binding protein H (CREBH encoded by Creb3l3) is a transcription factor that regulates the expression of genes that control lipid and glucose metabolism as well as inflammation. CREBH is upregulated in the liver under conditions of overnutrition, and mice globally lacking the gene (CREBH-/-) are highly susceptible to diet-induced obesity, insulin resistance, and hepatic steatosis. The net protective effects of CREBH have been attributed in large part to the activities of fibroblast growth factor (Fgf)-21 (Fgf21), a target gene that promotes weight loss, improves glucose homeostasis, and reduces hepatic lipid accumulation. To explore the possibility that activation of the CREBH-Fgf21 axis could ameliorate established effects of high-fat feeding, we generated an inducible transgenic hepatocyte-specific CREBH overexpression mouse model (Tg-rtTA). Acute overexpression of CREBH in livers of Tg-rtTA mice effectively reversed diet-induced obesity, insulin resistance, and hepatic steatosis. These changes were associated with increased activities of thermogenic brown and beige adipose tissues in Tg-rtTA mice, leading to reductions in fat mass, along with enhanced insulin sensitivity and glucose tolerance. Genetically silencing Fgf21 in Tg-rtTA mice abrogated the CREBH-mediated reductions in body weight loss, but only partially reversed the observed improvements in glucose metabolism. These findings reveal that the protective effects of CREBH activation may be leveraged to mitigate diet-induced obesity and associated metabolic abnormalities in both Fgf21-dependent and Fgf21-independent pathways.
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Affiliation(s)
- Christopher S Krumm
- Division of Gastroenterology & Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Xu Xu
- Division of Gastroenterology & Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Curtis J Bare
- Division of Gastroenterology & Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Corey D Holman
- Division of Gastroenterology & Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Sander Kersten
- Nutrition, Metabolism, and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Lukas E Dow
- Division of Hematology & Medical Oncology, Joan & Sanford I. Weill Department of Medicine, Sandra and Edward Meyer Cancer Center, Weill Cornell Medical College, New York, New York, USA
| | - Ann-Hwee Lee
- Department of Pathology & Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
| | - David E Cohen
- Division of Gastroenterology & Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, New York, USA.
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18
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de Bus I, van Krimpen S, Hooiveld GJ, Boekschoten MV, Poland M, Witkamp RF, Albada B, Balvers MGJ. Immunomodulating effects of 13- and 16-hydroxylated docosahexaenoyl ethanolamide in LPS stimulated RAW264.7 macrophages. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158908. [PMID: 33610761 DOI: 10.1016/j.bbalip.2021.158908] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/23/2021] [Accepted: 02/15/2021] [Indexed: 12/12/2022]
Abstract
Docosahexaenoyl ethanolamide (DHEA), the ethanolamine conjugate of the n-3 long chain polyunsaturated fatty acid docosahexaenoic acid, is endogenously present in the human circulation and in tissues. Its immunomodulating properties have been (partly) attributed to an interaction with the cyclooxygenase-2 (COX-2) enzyme. Recently, we discovered that COX-2 converts DHEA into two oxygenated metabolites, 13- and 16-hydroxylated-DHEA (13- and 16-HDHEA, respectively). It remained unclear whether these oxygenated metabolites also display immunomodulating properties like their parent DHEA. In the current study we investigated the immunomodulating properties of 13- and 16-HDHEA in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages. The compounds reduced production of tumor necrosis factor alpha (TNFα), interleukin (IL)-1β and IL-1Ra, but did not affect nitric oxide (NO) and IL-6 release. Transcriptome analysis showed that the compounds inhibited the LPS-mediated induction of pro-inflammatory genes (InhbA, Ifit1) and suggested potential inhibition of regulators such as toll-like receptor 4 (TLR4), MyD88, and interferon regulatory factor 3 (IRF3), whereas anti-inflammatory genes (SerpinB2) and potential regulators IL-10, sirtuin 1 (Sirt-1), fluticasone propionate were induced. Additionally, transcriptome analysis of 13-HDHEA suggests a potential anti-angiogenic role. In contrast to the known oxylipin-lowering effects of DHEA, liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) analyses revealed that 13- and 16-HDHEA did not affect oxylipin formation. Overall, the anti-inflammatory effects of 13-HDHEA and 16-HDHEA are less pronounced compared to their parent molecule DHEA. Therefore, we propose that COX-2 metabolism of DHEA acts as a regulatory mechanism to limit the anti-inflammatory properties of DHEA.
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Affiliation(s)
- Ian de Bus
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands; Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Sandra van Krimpen
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Guido J Hooiveld
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Mark V Boekschoten
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Mieke Poland
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Renger F Witkamp
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands.
| | - Michiel G J Balvers
- Division of Human Nutrition and Health, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands.
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19
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Grootswagers P, Smeets E, Oteng AB, Groot LD. A novel oral nutritional supplement improves gait speed and mitochondrial functioning compared to standard care in older adults with (or at risk of) undernutrition: results from a randomized controlled trial. Aging (Albany NY) 2021; 13:9398-9418. [PMID: 33799307 PMCID: PMC8064187 DOI: 10.18632/aging.202912] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/23/2021] [Indexed: 01/02/2023]
Abstract
Undernutrition in older adults is mainly addressed by oral nutritional supplements, which do not affect physical functioning. In this study, we tested a novel oral nutritional supplement that included whey and casein protein, ursolic acid, free branch-chained amino acids and vitamin D against a standard supplement. We included older adults (>65y) with (or at risk of) undernutrition (n=82) and randomized them to 12 weeks of novel or standard supplement. Both groups showed significant increases in body mass. No within or between-group differences in lean body mass were observed. Fat mass increased significantly more in the standard than the novel supplement group (time*treatment effect P=0.045). The novel supplement group showed a larger improvement in walking performance on distances of 4m (treatment x time interaction P=0.048) and 400m (treatment x time interaction P=0.038) than the standard treatment group. Gene sets related to mitochondrial functioning and oxidative phosphorylation were upregulated in the novel supplement group and downregulated in the standard supplement group. We conclude that a 12-week intervention with the novel supplement improved walking performance both during short and long distance as compared to a standard supplement, which can largely be explained by increased mitochondrial functioning in the group receiving the novel supplement.
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Affiliation(s)
- Pol Grootswagers
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Ellen Smeets
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Antwi-Boasiako Oteng
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Lisette de Groot
- Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
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20
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Kulthong K, Hooiveld GJEJ, Duivenvoorde L, Miro Estruch I, Marin V, van der Zande M, Bouwmeester H. Transcriptome comparisons of in vitro intestinal epithelia grown under static and microfluidic gut-on-chip conditions with in vivo human epithelia. Sci Rep 2021; 11:3234. [PMID: 33547413 PMCID: PMC7864925 DOI: 10.1038/s41598-021-82853-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/22/2021] [Indexed: 02/06/2023] Open
Abstract
Gut-on-chip devices enable exposure of cells to a continuous flow of culture medium, inducing shear stresses and could thus better recapitulate the in vivo human intestinal environment in an in vitro epithelial model compared to static culture methods. We aimed to study if dynamic culture conditions affect the gene expression of Caco-2 cells cultured statically or dynamically in a gut-on-chip device and how these gene expression patterns compared to that of intestinal segments in vivo. For this we applied whole genome transcriptomics. Dynamic culture conditions led to a total of 5927 differentially expressed genes (3280 upregulated and 2647 downregulated genes) compared to static culture conditions. Gene set enrichment analysis revealed upregulated pathways associated with the immune system, signal transduction and cell growth and death, and downregulated pathways associated with drug metabolism, compound digestion and absorption under dynamic culture conditions. Comparison of the in vitro gene expression data with transcriptome profiles of human in vivo duodenum, jejunum, ileum and colon tissue samples showed similarities in gene expression profiles with intestinal segments. It is concluded that both the static and the dynamic gut-on-chip model are suitable to study human intestinal epithelial responses as an alternative for animal models.
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Affiliation(s)
- Kornphimol Kulthong
- Division of Toxicology, Wageningen University, P.O. box 8000, 6700 EA, Wageningen, The Netherlands.
- Wageningen Food Safety Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands.
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani, 12120, Thailand.
| | - Guido J E J Hooiveld
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Loes Duivenvoorde
- Wageningen Food Safety Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands
| | - Ignacio Miro Estruch
- Division of Toxicology, Wageningen University, P.O. box 8000, 6700 EA, Wageningen, The Netherlands
| | - Victor Marin
- Wageningen Food Safety Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands
| | - Meike van der Zande
- Wageningen Food Safety Research, P.O. Box 230, 6700 AE, Wageningen, The Netherlands
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen University, P.O. box 8000, 6700 EA, Wageningen, The Netherlands.
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21
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de Boer JF, de Vries HD, Palmiotti A, Li R, Doestzada M, Hoogerland JA, Fu J, La Rose AM, Westerterp M, Mulder NL, Hovingh MV, Koehorst M, Kloosterhuis NJ, Wolters JC, Bloks VW, Haas JT, Dombrowicz D, Staels B, van de Sluis B, Kuipers F. Cholangiopathy and Biliary Fibrosis in Cyp2c70-Deficient Mice Are Fully Reversed by Ursodeoxycholic Acid. Cell Mol Gastroenterol Hepatol 2020; 11:1045-1069. [PMID: 33309945 PMCID: PMC7898074 DOI: 10.1016/j.jcmgh.2020.12.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Bile acids (BAs) aid intestinal fat absorption and exert systemic actions by receptor-mediated signaling. BA receptors have been identified as drug targets for liver diseases. Yet, differences in BA metabolism between humans and mice hamper translation of pre-clinical outcomes. Cyp2c70-ablation in mice prevents synthesis of mouse/rat-specific muricholic acids (MCAs), but potential (patho)physiological consequences of their absence are unknown. We therefore assessed age- and gender-dependent effects of Cyp2c70-deficiency in mice. METHODS The consequences of Cyp2c70-deficiency were assessed in male and female mice at different ages. RESULTS Cyp2c70-/- mice were devoid of MCAs and showed high abundances of chenodeoxycholic and lithocholic acids. Cyp2c70-deficiency profoundly impacted microbiome composition. Bile flow and biliary BA secretion were normal in Cyp2c70-/- mice of both sexes. Yet, the pathophysiological consequences of Cyp2c70-deficiency differed considerably between sexes. Three-week old male Cyp2c70-/- mice showed high plasma BAs and transaminases, which spontaneously decreased thereafter to near-normal levels. Only mild ductular reactions were observed in male Cyp2c70-/- mice up to 8 months of age. In female Cyp2c70-/- mice, plasma BAs and transaminases remained substantially elevated with age, gut barrier function was impaired and bridging fibrosis was observed at advanced age. Addition of 0.1% ursodeoxycholic acid to the diet fully normalized hepatic and intestinal functions in female Cyp2c70-/- mice. CONCLUSION Cyp2c70-/- mice show transient neonatal cholestasis and develop cholangiopathic features that progress to bridging fibrosis in females only. These consequences of Cyp2c70-deficiency are restored by treatment with UDCA, indicating a role of BA hydrophobicity in disease development.
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Affiliation(s)
- Jan Freark de Boer
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Hilde D de Vries
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; University of Groningen, Campus Fryslân, Leeuwarden, the Netherlands
| | - Anna Palmiotti
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Rumei Li
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Marwah Doestzada
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Genetics University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Joanne A Hoogerland
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur Lille, U1011-EGID, F-59000 Lille, France
| | - Jingyuan Fu
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Genetics University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Anouk M La Rose
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Marit Westerterp
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Niels L Mulder
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Milaine V Hovingh
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Martijn Koehorst
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Niels J Kloosterhuis
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Justina C Wolters
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Vincent W Bloks
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands
| | - Joel T Haas
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur Lille, U1011-EGID, F-59000 Lille, France
| | - David Dombrowicz
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur Lille, U1011-EGID, F-59000 Lille, France
| | - Bart Staels
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur Lille, U1011-EGID, F-59000 Lille, France
| | - Bart van de Sluis
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands; iPSC/CRISPR Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Folkert Kuipers
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, the Netherlands; Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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22
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Thiem K, van Dierendonck XAMH, Janssen AWM, Boogaard JP, Riksen NP, Tack CJ, Stienstra R. A High Glycemic Burden Relates to Functional and Metabolic Alterations of Human Monocytes in Patients With Type 1 Diabetes. Diabetes 2020; 69:2735-2746. [PMID: 32978233 DOI: 10.2337/db20-0568] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/16/2020] [Indexed: 11/13/2022]
Abstract
Diabetes is associated with increased cardiovascular risk and higher occurrence of infections. These complications suggest altered responses of the innate immune system. Recent studies have shown that energy metabolism of monocytes is crucial in determining their functionality. Here we investigate whether monocyte metabolism and function are changed in patients with diabetes and aim to identify diabetes-associated factors driving these alterations. Patients with type 1 diabetes (T1D) (n = 41) and healthy age-, sex-, and BMI-matched control subjects (n = 20) were recruited. Monocytes were isolated from peripheral blood to determine immune functionality, metabolic responses, and transcriptome profiles. Upon ex vivo stimulation with Toll-like receptor (TLR) 4 or TLR-2 agonists, monocytes of patients with T1D secreted lower levels of various cytokines and showed lower glycolytic rates compared with monocytes isolated from matched control subjects. Stratification based on HbA1c levels revealed that lower cytokine secretion was coupled to higher glycolytic rate of monocytes in patients with a higher glycemic burden. Circulating monocytes displayed an enhanced inflammatory gene expression profile associated with high glycemic burden. These results suggest that a high glycemic burden in patients with T1D is related to expression of inflammatory genes of monocytes and is associated with an impaired relationship between metabolism and inflammatory function upon activation.
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Affiliation(s)
- Kathrin Thiem
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Xanthe A M H van Dierendonck
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Anna W M Janssen
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Joline P Boogaard
- Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Niels P Riksen
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Cees J Tack
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Rinke Stienstra
- Department of Internal Medicine (463) and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
- Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
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23
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Brouwer MAE, Jones-Warner W, Rahman S, Kerstholt M, Ferreira AV, Oosting M, Hooiveld GJ, Netea MG, Joosten LAB. B. burgdorferi sensu lato-induced inhibition of antigen presentation is mediated by RIP1 signaling resulting in impaired functional T cell responses towards Candida albicans. Ticks Tick Borne Dis 2020; 12:101611. [PMID: 33360386 DOI: 10.1016/j.ttbdis.2020.101611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/22/2020] [Accepted: 11/06/2020] [Indexed: 02/06/2023]
Abstract
Antigen presentation is a crucial innate immune cell function that instructs adaptive immune cells. Loss of this pathway severely impairs the development of adaptive immune responses. To investigate whether B. burgdorferi sensu lato. spirochetes modulate the induction of an effective immune response, primary human PBMCs were isolated from healthy volunteers and stimulated with B. burgdorferi s.l. Through cell entry, TNF receptor I, and RIP1 signaling cascades, B. burgdorferi s.l. strongly downregulated genes and proteins involved in antigen presentation, specifically HLA-DM, MHC class II and CD74. Antigen presentation proteins were distinctively inhibited in monocyte subsets, monocyte-derived macrophages, and dendritic cells. When compared to a range of other pathogens, B. burgdorferi s.l.-induced suppression of antigen presentation appears to be specific. Inhibition of antigen presentation interfered with T-cell recognition of B. burgdorferi s.l., and memory T-cell responses against Candidaalbicans. Re-stimulation of PBMCs with the commensal microbe C.albicans following B. burgdorferi s.l. exposure resulted in significantly reduced IFN-γ, IL-17 and IL-22 production. These findings may explain why patients with Lyme borreliosis develop delayed adaptive immune responses. Unravelling the mechanism of B. burgdorferi s.l.-induced inhibition of antigen presentation, via cell entry, TNF receptor I, and RIP1 signaling cascades, explains the difficulty to diagnose the disease based on serology and to obtain an effective vaccine against Lyme borreliosis.
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Affiliation(s)
- Michelle A E Brouwer
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - William Jones-Warner
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Shafaque Rahman
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Mariska Kerstholt
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Anaísa V Ferreira
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Marije Oosting
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Guido J Hooiveld
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, the Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands; Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud Institute of Molecular Life Sciences (RIMLS), Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands.
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24
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Tu S, Li M, Chen H, Tan F, Xu J, Waxman DJ, Zhang Y, Shao Z. MAnorm2 for quantitatively comparing groups of ChIP-seq samples. Genome Res 2020; 31:131-145. [PMID: 33208455 PMCID: PMC7849384 DOI: 10.1101/gr.262675.120] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 11/09/2020] [Indexed: 12/16/2022]
Abstract
Eukaryotic gene transcription is regulated by a large cohort of chromatin-associated proteins, and inferring their differential binding sites between cellular contexts requires a rigorous comparison of the corresponding ChIP-seq data. We present MAnorm2, a new computational tool for quantitatively comparing groups of ChIP-seq samples. MAnorm2 uses a hierarchical strategy for normalization of ChIP-seq data and assesses within-group variability of ChIP-seq signals based on an empirical Bayes framework. In this framework, MAnorm2 allows for abundant differential ChIP-seq signals between groups of samples as well as very different global within-group variability between groups. Using a number of real ChIP-seq data sets, we observed that MAnorm2 clearly outperformed existing tools for differential ChIP-seq analysis, especially when the groups of samples being compared had distinct global within-group variability.
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Affiliation(s)
- Shiqi Tu
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mushan Li
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Haojie Chen
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengxiang Tan
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Xu
- Children's Medical Center Research Institute, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - David J Waxman
- Department of Biology and Bioinformatics Program, Boston University, Boston, Massachusetts 02215, USA
| | - Yijing Zhang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhen Shao
- CAS Key Laboratory of Computational Biology, CAS-MPG Partner Institute for Computational Biology, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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25
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Niss K, Jakobsson ME, Westergaard D, Belling KG, Olsen JV, Brunak S. Effects of active farnesoid X receptor on GLUTag enteroendocrine L cells. Mol Cell Endocrinol 2020; 517:110923. [PMID: 32702472 DOI: 10.1016/j.mce.2020.110923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/27/2020] [Accepted: 06/23/2020] [Indexed: 12/21/2022]
Abstract
Activated transcription factor (TF) farnesoid X receptor (FXR) represses glucagon-like peptide-1 (GLP-1) secretion in enteroendocrine L cells. This, in turn, reduces insulin secretion, which is triggered when β cells bind GLP-1. Preventing FXR activation could boost GLP-1 production and insulin secretion. Yet, FXR's broader role in L cell biology still lacks understanding. Here, we show that FXR is a multifaceted TF in L cells using proteomics and gene expression data generated on GLUTag L cells. Most striking, 252 proteins regulated upon glucose stimulation have their abundances neutralized upon FXR activation. Mitochondrial repression or glucose import block are likely mechanisms of this. Further, FXR physically targets bile acid metabolism proteins, growth factors and other TFs, regulates ChREBP, while extensive text-mining found 30 FXR-regulated proteins to be well-known in L cell biology. Taken together, this outlines FXR as a powerful TF, where GLP-1 secretion block is just one of many downstream effects.
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Affiliation(s)
- Kristoffer Niss
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Magnus E Jakobsson
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark; Department of Immunotechnology, Lund University, Medicon Village, 22100, Lund, Sweden
| | - David Westergaard
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark; Dept. of Health Technology, Technical University of Denmark, DK-2800, Lyngby, Denmark
| | - Kirstine G Belling
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Jesper V Olsen
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Søren Brunak
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200, Copenhagen, Denmark; Dept. of Health Technology, Technical University of Denmark, DK-2800, Lyngby, Denmark.
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26
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Saha C, Horst-Kreft D, Kross I, van der Spek PJ, Louwen R, van Baarlen P. Campylobacter jejuni Cas9 Modulates the Transcriptome in Caco-2 Intestinal Epithelial Cells. Genes (Basel) 2020; 11:genes11101193. [PMID: 33066557 PMCID: PMC7650535 DOI: 10.3390/genes11101193] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/01/2020] [Accepted: 10/11/2020] [Indexed: 12/12/2022] Open
Abstract
The zoonotic human pathogen Campylobacter jejuni is known for its ability to induce DNA-damage and cell death pathology in humans. The molecular mechanism behind this phenomenon involves nuclear translocation by Cas9, a nuclease in C. jejuni (CjeCas9) that is the molecular marker of the Type II CRISPR-Cas system. However, it is unknown via which cellular pathways CjeCas9 drives human intestinal epithelial cells into cell death. Here, we show that CjeCas9 released by C. jejuni during the infection of Caco-2 human intestinal epithelial cells directly modulates Caco-2 transcriptomes during the first four hours of infection. Specifically, our results reveal that CjeCas9 activates DNA damage (p53, ATM (Ataxia Telangiectasia Mutated Protein)), pro-inflammatory (NF-κB (Nuclear factor-κB)) signaling and cell death pathways, driving Caco-2 cells infected by wild-type C. jejuni, but not when infected by a cas9 deletion mutant, towards programmed cell death. This work corroborates our previous finding that CjeCas9 is cytotoxic and highlights on a RNA level the basal cellular pathways that are modulated.
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Affiliation(s)
- Chinmoy Saha
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands; (D.H.-K.); (I.K.); (R.L.)
- Correspondence: ; Tel.: +31-638620563
| | - Deborah Horst-Kreft
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands; (D.H.-K.); (I.K.); (R.L.)
| | - Inez Kross
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands; (D.H.-K.); (I.K.); (R.L.)
| | - Peter J. van der Spek
- Department of Pathology and Clinical Bioinformatics, Erasmus MC, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands;
| | - Rogier Louwen
- Department of Medical Microbiology and Infectious Diseases, Erasmus MC University Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands; (D.H.-K.); (I.K.); (R.L.)
| | - Peter van Baarlen
- Host–Microbe Interactomics, Wageningen University and Research, 6708 WD Wageningen, The Netherlands;
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27
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van der Heijden CDCC, Keating ST, Groh L, Joosten LAB, Netea MG, Riksen NP. Aldosterone induces trained immunity: the role of fatty acid synthesis. Cardiovasc Res 2020; 116:317-328. [PMID: 31119285 DOI: 10.1093/cvr/cvz137] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/09/2019] [Accepted: 05/16/2019] [Indexed: 12/26/2022] Open
Abstract
AIMS Supranormal levels of aldosterone are associated with an increased cardiovascular risk in humans, and with accelerated atherosclerosis in animal models. Atherosclerosis is a low-grade inflammatory disorder, with monocyte-derived macrophages as major drivers of plaque formation. Monocytes can adopt a long-term pro-inflammatory phenotype after brief stimulation with microbial pathogens or endogenous atherogenic lipoproteins via a process termed trained immunity. In this study, we aimed to investigate whether aldosterone can induce trained immunity in primary human monocytes in vitro and explored the underlying mechanism. METHODS AND RESULTS We exposed human monocytes to aldosterone for 24 h, after which they were rested to differentiate into monocyte-derived macrophages for 5 days, and re-stimulated with toll-like receptor 2 and 4 ligands on day 6. We demonstrated that aldosterone augments pro-inflammatory cytokine production and reactive oxygen species production in monocyte-derived macrophages after re-stimulation, via the mineralocorticoid receptor. Fatty acid synthesis was identified as a crucial pathway necessary for this induction of trained immunity and pharmacological inhibition of this pathway blunted aldosterone-induced trained immunity. At the level of gene regulation, aldosterone promoted enrichment of the transcriptionally permissive H3K4me3 modification at promoters of genes central to the fatty acid synthesis pathway. CONCLUSION Aldosterone induces trained immunity in vitro, which is dependent on epigenetically mediated up-regulation of fatty acid synthesis. These data provide mechanistic insight into the contribution of aldosterone to inflammation, atherosclerosis, and cardiovascular disease.
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Affiliation(s)
- Charlotte D C C van der Heijden
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands
| | - Samuel T Keating
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands
| | - Laszlo Groh
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands
| | - Mihai G Netea
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands.,Department for Genomics & Immunoregulation, Life and Medical Sciences Institute (LIMES), University of Bonn, Carl-Troll-Str. 31, 53115 Bonn, Germany
| | - Niels P Riksen
- Department of Internal Medicine, Radboud University Medical Center, Geert Grooteplein Zuid 8, 6525 GA, Nijmegen, The Netherlands
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28
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Nascimento EBM, Hangelbroek RWJ, Hooiveld GJEJ, Hoeks J, Van Marken Lichtenbelt WD, Hesselink MHC, Schrauwen P, Kersten S. Comparative transcriptome analysis of human skeletal muscle in response to cold acclimation and exercise training in human volunteers. BMC Med Genomics 2020; 13:124. [PMID: 32887608 PMCID: PMC7487556 DOI: 10.1186/s12920-020-00784-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/24/2020] [Indexed: 01/12/2023] Open
Abstract
Background Cold acclimation and exercise training were previously shown to increase peripheral insulin sensitivity in human volunteers with type 2 diabetes. Although cold is a potent activator of brown adipose tissue, the increase in peripheral insulin sensitivity by cold is largely mediated by events occurring in skeletal muscle and at least partly involves GLUT4 translocation, as is also observed for exercise training. Methods To investigate if cold acclimation and exercise training overlap in the molecular adaptive response in skeletal muscle, we performed transcriptomics analysis on vastus lateralis muscle collected from human subjects before and after 10 days of cold acclimation, as well as before and after a 12-week exercise training intervention. Results Cold acclimation altered the expression of 756 genes (422 up, 334 down, P < 0.01), while exercise training altered the expression of 665 genes (444 up, 221 down, P < 0.01). Principal Component Analysis, Venn diagram, similarity analysis and Rank–rank Hypergeometric Overlap all indicated significant overlap between cold acclimation and exercise training in upregulated genes, but not in downregulated genes. Overlapping gene regulation was especially evident for genes and pathways associated with extracellular matrix remodeling. Interestingly, the genes most highly induced by cold acclimation were involved in contraction and in signal transduction between nerve and muscle cells, while no significant changes were observed in genes and pathways related to insulin signaling or glucose metabolism. Conclusions Overall, our results indicate that cold acclimation and exercise training have overlapping effects on gene expression in human skeletal muscle, but strikingly these overlapping genes are designated to pathways related to tissue remodeling rather than metabolic pathways.
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Affiliation(s)
- Emmani B M Nascimento
- Department of Nutrition and Movement Sciences, Maastricht Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Roland W J Hangelbroek
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - 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
| | - Joris Hoeks
- Department of Nutrition and Movement Sciences, Maastricht Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Wouter D Van Marken Lichtenbelt
- Department of Nutrition and Movement Sciences, Maastricht Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Matthijs H C Hesselink
- Department of Nutrition and Movement Sciences, Maastricht Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, The Netherlands
| | - Patrick Schrauwen
- Department of Nutrition and Movement Sciences, Maastricht Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, 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.
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29
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Louisse J, Rijkers D, Stoopen G, Janssen A, Staats M, Hoogenboom R, Kersten S, Peijnenburg A. Perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), and perfluorononanoic acid (PFNA) increase triglyceride levels and decrease cholesterogenic gene expression in human HepaRG liver cells. Arch Toxicol 2020; 94:3137-3155. [PMID: 32588087 PMCID: PMC7415755 DOI: 10.1007/s00204-020-02808-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/15/2020] [Indexed: 01/09/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are omnipresent in the environment, food chain, and humans. Epidemiological studies have shown a positive association between serum levels of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), and increased serum cholesterol and, in some cases, also triglyceride levels. However, causality has been questioned, as animal studies, as well as a human trial, showed a decrease in serum cholesterol and no effects or a decrease in plasma triglycerides. To obtain more insight into the effects of PFASs on these processes, the present study investigated the effects of PFOA, PFOS, and perfluorononanoic acid (PFNA) on intracellular triglyceride and cholesterol levels in human HepaRG liver cells. DNA microarray analyses were performed to provide insight into underlying mechanisms. All PFASs induced an increase in cellular triglyceride levels, but had no effect on cholesterol levels. Gene set enrichment analysis (GSEA) of the microarray data indicated that gene sets related to cholesterol biosynthesis were repressed by PFOA, PFOS, and PFNA. Other gene sets commonly affected by all PFAS were related to PERK/ATF4 signaling (induced), tRNA amino-acylation (induced), amino acid transport (induced), and glycolysis/gluconeogenesis (repressed). Moreover, numerous target genes of peroxisome proliferator-activated receptor α (PPARα) were found to be upregulated. Altogether, the present study shows that PFOA, PFOS, and PFNA increase triglyceride levels and inhibit cholesterogenic gene expression in HepaRG cells. In addition, the present study indicates that PFASs induce endoplasmic reticulum stress, which may be an important mechanism underlying some of the toxic effects of these chemicals.
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Affiliation(s)
- Jochem Louisse
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands.
| | - Deborah Rijkers
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
| | - Geert Stoopen
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
| | - Aafke Janssen
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
| | - Martijn Staats
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
| | - Ron Hoogenboom
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Ad Peijnenburg
- Wageningen Food Safety Research (WFSR), Wageningen, The Netherlands
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30
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Defour M, Michielsen CCJR, O'Donovan SD, Afman LA, Kersten S. Transcriptomic signature of fasting in human adipose tissue. Physiol Genomics 2020; 52:451-467. [PMID: 32866087 DOI: 10.1152/physiolgenomics.00083.2020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Little is known about gene regulation by fasting in human adipose tissue. Accordingly, the objective of this study was to investigate the effects of fasting on adipose tissue gene expression in humans. To that end, subcutaneous adipose tissue biopsies were collected from 11 volunteers 2 and 26 h after consumption of a standardized meal. For comparison, epididymal adipose tissue was collected from C57Bl/6J mice in the ab libitum-fed state and after a 16 h fast. The timing of sampling adipose tissue roughly corresponds with the near depletion of liver glycogen. Transcriptome analysis was carried out using Affymetrix microarrays. We found that, 1) fasting downregulated numerous metabolic pathways in human adipose tissue, including triglyceride and fatty acid synthesis, glycolysis and glycogen synthesis, TCA cycle, oxidative phosphorylation, mitochondrial translation, and insulin signaling; 2) fasting downregulated genes involved in proteasomal degradation in human adipose tissue; 3) fasting had much less pronounced effects on the adipose tissue transcriptome in humans than mice; 4) although major overlap in fasting-induced gene regulation was observed between human and mouse adipose tissue, many genes were differentially regulated in the two species, including genes involved in insulin signaling (PRKAG2, PFKFB3), PPAR signaling (PPARG, ACSL1, HMGCS2, SLC22A5, ACOT1), glycogen metabolism (PCK1, PYGB), and lipid droplets (PLIN1, PNPLA2, CIDEA, CIDEC). In conclusion, although numerous genes and pathways are regulated similarly by fasting in human and mouse adipose tissue, many genes show very distinct responses to fasting in humans and mice. Our data provide a useful resource to study adipose tissue function during fasting.
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Affiliation(s)
- Merel Defour
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Charlotte C J R Michielsen
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Shauna D O'Donovan
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Lydia A Afman
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
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31
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Knuiman P, Hangelbroek R, Boekschoten M, Hopman M, Mensink M. Impact of protein supplementation during endurance training on changes in skeletal muscle transcriptome. BMC Genomics 2020; 21:397. [PMID: 32517654 PMCID: PMC7285456 DOI: 10.1186/s12864-020-6686-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 03/18/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Protein supplementation improves physiological adaptations to endurance training, but the impact on adaptive changes in the skeletal muscle transcriptome remains elusive. The present analysis was executed to determine the impact of protein supplementation on changes in the skeletal muscle transcriptome following 5-weeks of endurance training. RESULTS Skeletal muscle tissue samples from the vastus lateralis were taken before and after 5-weeks of endurance training to assess changes in the skeletal muscle transcriptome. One hundred and 63 genes were differentially expressed after 5-weeks of endurance training in both groups (q-value< 0.05). In addition, the number of genes differentially expressed was higher in the protein group (PRO) (892, q-value< 0.05) when compared with the control group (CON) (440, q-value< 0.05), with no time-by-treatment interaction effect (q-value> 0.05). Endurance training primarily affected expression levels of genes related to extracellular matrix and these changes tended to be greater in PRO than in CON. CONCLUSIONS Protein supplementation subtly impacts endurance training-induced changes in the skeletal muscle transcriptome. In addition, our transcriptomic analysis revealed that the extracellular matrix may be an important factor for skeletal muscle adaptation in response to endurance training. This trial was registered at clinicaltrials.gov as NCT03462381, March 12, 2018. TRIAL REGISTRATION This trial was registered at clinicaltrials.gov as NCT03462381.
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Affiliation(s)
- Pim Knuiman
- Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708, WE, Wageningen, The Netherlands. .,School of Biomedical Sciences, University of Leeds, Clarendon Way, Leeds, LS2 9JT, UK.
| | - Roland Hangelbroek
- Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708, WE, Wageningen, The Netherlands.,Advanced Analytics, Viqtor Davis B.V., Parijsboulevard 143 A, 3541, CS, Utrecht, The Netherlands
| | - Mark Boekschoten
- Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Maria Hopman
- Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708, WE, Wageningen, The Netherlands.,Department of Physiology, Radboud University Medical Centre, Geert Grooteplein-West 32, 6525, GA, Nijmegen, The Netherlands
| | - Marco Mensink
- Division of Human Nutrition, Wageningen University & Research, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
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32
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Stansfield JC, Cresswell KG, Dozmorov MG. multiHiCcompare: joint normalization and comparative analysis of complex Hi-C experiments. Bioinformatics 2020; 35:2916-2923. [PMID: 30668639 DOI: 10.1093/bioinformatics/btz048] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/14/2018] [Accepted: 01/17/2019] [Indexed: 12/17/2022] Open
Abstract
MOTIVATION With the development of chromatin conformation capture technology and its high-throughput derivative Hi-C sequencing, studies of the three-dimensional interactome of the genome that involve multiple Hi-C datasets are becoming available. To account for the technology-driven biases unique to each dataset, there is a distinct need for methods to jointly normalize multiple Hi-C datasets. Previous attempts at removing biases from Hi-C data have made use of techniques which normalize individual Hi-C datasets, or, at best, jointly normalize two datasets. RESULTS Here, we present multiHiCcompare, a cyclic loess regression-based joint normalization technique for removing biases across multiple Hi-C datasets. In contrast to other normalization techniques, it properly handles the Hi-C-specific decay of chromatin interaction frequencies with the increasing distance between interacting regions. multiHiCcompare uses the general linear model framework for comparative analysis of multiple Hi-C datasets, adapted for the Hi-C-specific decay of chromatin interaction frequencies. multiHiCcompare outperforms other methods when detecting a priori known chromatin interaction differences from jointly normalized datasets. Applied to the analysis of auxin-treated versus untreated experiments, and CTCF depletion experiments, multiHiCcompare was able to recover the expected epigenetic and gene expression signatures of loss of chromatin interactions and reveal novel insights. AVAILABILITY AND IMPLEMENTATION multiHiCcompare is freely available on GitHub and as a Bioconductor R package https://bioconductor.org/packages/multiHiCcompare. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- John C Stansfield
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Kellen G Cresswell
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
| | - Mikhail G Dozmorov
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA, USA
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33
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Zhu Y, Orre LM, Zhou Tran Y, Mermelekas G, Johansson HJ, Malyutina A, Anders S, Lehtiö J. DEqMS: A Method for Accurate Variance Estimation in Differential Protein Expression Analysis. Mol Cell Proteomics 2020; 19:1047-1057. [PMID: 32205417 PMCID: PMC7261819 DOI: 10.1074/mcp.tir119.001646] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 03/20/2020] [Indexed: 12/19/2022] Open
Abstract
Quantitative proteomics by mass spectrometry is widely used in biomarker research and basic biology research for investigation of phenotype level cellular events. Despite the wide application, the methodology for statistical analysis of differentially expressed proteins has not been unified. Various methods such as t test, linear model and mixed effect models are used to define changes in proteomics experiments. However, none of these methods consider the specific structure of MS-data. Choices between methods, often originally developed for other types of data, are based on compromises between features such as statistical power, general applicability and user friendliness. Furthermore, whether to include proteins identified with one peptide in statistical analysis of differential protein expression varies between studies. Here we present DEqMS, a robust statistical method developed specifically for differential protein expression analysis in mass spectrometry data. In all data sets investigated there is a clear dependence of variance on the number of PSMs or peptides used for protein quantification. DEqMS takes this feature into account when assessing differential protein expression. This allows for a more accurate data-dependent estimation of protein variance and inclusion of single peptide identifications without increasing false discoveries. The method was tested in several data sets including E. coli proteome spike-in data, using both label-free and TMT-labeled quantification. Compared with previous statistical methods used in quantitative proteomics, DEqMS showed consistently better accuracy in detecting altered protein levels compared with other statistical methods in both label-free and labeled quantitative proteomics data. DEqMS is available as an R package in Bioconductor.
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Affiliation(s)
- Yafeng Zhu
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Lukas M Orre
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Yan Zhou Tran
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Georgios Mermelekas
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Henrik J Johansson
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Alina Malyutina
- Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Simon Anders
- Centre for Molecular Biology of Heidelberg University (ZMBH), Heidelberg, Germany
| | - Janne Lehtiö
- Department of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.
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34
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Houzelle A, Dahlmans D, Nascimento EBM, Schaart G, Jörgensen JA, Moonen-Kornips E, Kersten S, Wang X, Hoeks J. MicroRNA-204-5p modulates mitochondrial biogenesis in C2C12 myotubes and associates with oxidative capacity in humans. J Cell Physiol 2020; 235:9851-9863. [PMID: 32452584 PMCID: PMC7586823 DOI: 10.1002/jcp.29797] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 03/24/2020] [Accepted: 04/15/2020] [Indexed: 12/16/2022]
Abstract
Using an unbiased high‐throughput microRNA (miRNA)‐silencing screen combined with functional readouts for mitochondrial oxidative capacity in C2C12 myocytes, we previously identified 19 miRNAs as putative regulators of skeletal muscle mitochondrial metabolism. In the current study, we highlight miRNA‐204‐5p, identified from this screen, and further studied its role in the regulation of skeletal muscle mitochondrial function. Following silencing of miRNA‐204‐5p in C2C12 myotubes, gene and protein expression were assessed using quantitative polymerase chain reaction, microarray analysis, and western blot analysis, while morphological changes were studied by confocal microscopy. In addition, miRNA‐204‐5p expression was quantified in human skeletal muscle biopsies and associated with in vivo mitochondrial oxidative capacity. Transcript levels of PGC‐1α (3.71‐fold; p < .01), predicted as an miR‐204‐5p target, as well as mitochondrial DNA copy number (p < .05) and citrate synthase activity (p = .06) were increased upon miRNA‐204‐5p silencing in C2C12 myotubes. Silencing of miRNA‐204‐5p further resulted in morphological changes, induced gene expression of autophagy marker light chain 3 protein b (LC3B; q = .05), and reduced expression of the mitophagy marker FUNDC1 (q = .01). Confocal imaging revealed colocalization between the autophagosome marker LC3B and the mitochondrial marker OxPhos upon miRNA‐204‐5p silencing. Finally, miRNA‐204‐5p was differentially expressed in human subjects displaying large variation in oxidative capacity and its expression levels associated with in vivo measures of skeletal muscle mitochondrial function. In summary, silencing of miRNA‐204‐5p in C2C12 myotubes stimulated mitochondrial biogenesis, impacted on cellular morphology, and altered expression of markers related to autophagy and mitophagy. The association between miRNA‐204‐5p and in vivo mitochondrial function in human skeletal muscle further identifies miRNA‐204‐5p as an interesting modulator of skeletal muscle mitochondrial metabolism.
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Affiliation(s)
- Alexandre Houzelle
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Dennis Dahlmans
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Emmani B M Nascimento
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Gert Schaart
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Johanna A Jörgensen
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Esther Moonen-Kornips
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Sander Kersten
- Division of Human Nutrition, Nutrition, Metabolism and Genomics Group, Wageningen University, Wageningen, The Netherlands
| | - Xu Wang
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.,Laboratory of Integrative Systems Physiology, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Joris Hoeks
- Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
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Arantes MR, Peijnenburg A, Hendriksen PJM, Stoopen G, Almeida TS, Souza TM, Farias DF, Carvalho AFU, Rocha TM, Leal LKAM, Vasconcelos IM, Oliveira JTA. In vitro toxicological characterisation of the antifungal compound soybean toxin (SBTX). Toxicol In Vitro 2020; 65:104824. [PMID: 32165152 DOI: 10.1016/j.tiv.2020.104824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 02/13/2020] [Accepted: 03/08/2020] [Indexed: 12/18/2022]
Abstract
Soybean toxin (SBTX) is a protein isolated from soybean seeds and composed of two polypeptide subunits (17 and 27 kDa). SBTX has in vitro activity against phytopathogenic fungi such as Cercospora sojina, Aspergillus niger, and Penicillium herguei, and yeasts like Candida albicans, C. parapsilosis, Kluyveromyces marxiannus, and Pichia membranifaciens. The present study aimed to analyze in vitro whether SBTX causes any side effects on non-target bacterial and mammalian cells that could impede its potential use as a novel antifungal agent. SBTX at 100 μg/mL and 200 μg/mL did not hinder the growth of the bacteria Salmonella enterica (subspecies enterica serovar choleraesuis), Bacillus subtilis (subspecies spizizenii) and Staphylococcus aureus. Moreover, SBTX at concentrations up to 500 μg/mL did not significantly affect the viability of erythrocytes, neutrophils, and human intestinal Caco-2 cells. To study whether SBTX could induce relevant alterations in gene expression, in vitro DNA microarray experiments were conducted in which differentiated Caco-2 cells were exposed for 24 h to 100 μg/mL or 200 μg/mL SBTX. SBTX up-regulated genes involved in cell cycle and immune response pathways, but down-regulated genes that play a role in cholesterol biosynthesis and platelet degranulation pathways. Thus, although SBTX did not affect bacteria, nor induced cytotoxity in mammalian cells, it affected some biological pathways in the human Caco-2 cell line that warrants further investigation.
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Affiliation(s)
- Mariana Reis Arantes
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60020-181 Fortaleza, CE, Brazil
| | - Ad Peijnenburg
- WFSR, Wageningen University and Research Centre, P.O. Box 230, 6700 AE Wageningen, the Netherlands.
| | - Peter J M Hendriksen
- WFSR, Wageningen University and Research Centre, P.O. Box 230, 6700 AE Wageningen, the Netherlands.
| | - Geert Stoopen
- WFSR, Wageningen University and Research Centre, P.O. Box 230, 6700 AE Wageningen, the Netherlands.
| | - Thiago Silva Almeida
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60020-181 Fortaleza, CE, Brazil
| | - Terezinha Maria Souza
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht 6229, ER, the Netherlands.
| | - Davi Felipe Farias
- Department of Molecular Biology, Federal University of Paraíba, 58051-900 Joao Pessoa, PB, Brazil.
| | | | | | | | - Ilka Maria Vasconcelos
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60020-181 Fortaleza, CE, Brazil.
| | - Jose Tadeu Abreu Oliveira
- Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60020-181 Fortaleza, CE, Brazil.
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Yu L, Zhang J, Brock G, Fernandez S. Fully moderated t-statistic in linear modeling of mixed effects for differential expression analysis. BMC Bioinformatics 2019; 20:675. [PMID: 31861977 PMCID: PMC6923909 DOI: 10.1186/s12859-019-3248-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Gene expression profiling experiments with few replicates lead to great variability in the estimates of gene variances. Toward this end, several moderated t-test methods have been developed to reduce this variability and to increase power for testing differential expression. Most of these moderated methods are based on linear models with fixed effects where residual variances are smoothed under a hierarchical Bayes framework. However, they are inadequate for designs with complex correlation structures, therefore application of moderated methods to linear models with mixed effects are needed for differential expression analysis. RESULTS We demonstrated the implementation of the fully moderated t-statistic method for linear models with mixed effects, where both residual variances and variance estimates of random effects are smoothed under a hierarchical Bayes framework. We compared the proposed method with two current moderated methods and show that the proposed method can control the expected number of false positives at the nominal level, while the two current moderated methods fail. CONCLUSIONS We proposed an approach for testing differential expression under complex correlation structures while providing variance shrinkage. The proposed method is able to improve power by moderation and controls the expected number of false positives properly at the nominal level.
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Affiliation(s)
- Lianbo Yu
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, 1800 Cannon Dr., Columbus, 43210 OH USA
| | - Jianying Zhang
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, 1800 Cannon Dr., Columbus, 43210 OH USA
| | - Guy Brock
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, 1800 Cannon Dr., Columbus, 43210 OH USA
| | - Soledad Fernandez
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University, 1800 Cannon Dr., Columbus, 43210 OH USA
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Allogenic Faecal Microbiota Transfer Induces Immune-Related Gene Sets in the Colon Mucosa of Patients with Irritable Bowel Syndrome. Biomolecules 2019; 9:biom9100586. [PMID: 31597320 PMCID: PMC6843426 DOI: 10.3390/biom9100586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 12/14/2022] Open
Abstract
Faecal microbiota transfer (FMT) consists of the introduction of new microbial communities into the intestine of a patient, with the aim of restoring a disturbed gut microbiota. Even though it is used as a potential treatment for various diseases, it is unknown how the host mucosa responds to FMT. This study aims to investigate the colonic mucosa gene expression response to allogenic (from a donor) or autologous (own) FMT in patients with irritable bowel syndrome (IBS). In a recently conducted randomised, double-blinded, controlled clinical study, 17 IBS patients were treated with FMT by colonoscopy. RNA was isolated from colonic biopsies collected by sigmoidoscopy at baseline, as well as two weeks and eight weeks after FMT. In patients treated with allogenic FMT, predominantly immune response-related gene sets were induced, with the strongest response two weeks after the FMT. In patients treated with autologous FMT, predominantly metabolism-related gene sets were affected. Furthermore, several microbiota genera showed correlations with immune-related gene sets, with different correlations found after allogenic compared to autologous FMT. This study shows that the microbe–host response is influenced by FMT on the mucosal gene expression level, and that there are clear differences in response to allogenic compared to autologous FMT.
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Ramayo-Caldas Y, Mármol-Sánchez E, Ballester M, Sánchez JP, González-Prendes R, Amills M, Quintanilla R. Integrating genome-wide co-association and gene expression to identify putative regulators and predictors of feed efficiency in pigs. Genet Sel Evol 2019; 51:48. [PMID: 31477014 PMCID: PMC6721172 DOI: 10.1186/s12711-019-0490-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 08/19/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Feed efficiency (FE) has a major impact on the economic sustainability of pig production. We used a systems-based approach that integrates single nucleotide polymorphism (SNP) co-association and gene-expression data to identify candidate genes, biological pathways, and potential predictors of FE in a Duroc pig population. RESULTS We applied an association weight matrix (AWM) approach to analyse the results from genome-wide association studies (GWAS) for nine FE associated and production traits using 31K SNPs by defining residual feed intake (RFI) as the target phenotype. The resulting co-association network was formed by 829 SNPs. Additive effects of this SNP panel explained 61% of the phenotypic variance of RFI, and the resulting phenotype prediction accuracy estimated by cross-validation was 0.65 (vs. 0.20 using pedigree-based best linear unbiased prediction and 0.12 using the 31K SNPs). Sixty-eight transcription factor (TF) genes were identified in the co-association network; based on the lossless approach, the putative main regulators were COPS5, GTF2H5, RUNX1, HDAC4, ESR1, USP16, SMARCA2 and GTF2F2. Furthermore, gene expression data of the gluteus medius muscle was explored through differential expression and multivariate analyses. A list of candidate genes showing functional and/or structural associations with FE was elaborated based on results from both AWM and gene expression analyses, and included the aforementioned TF genes and other ones that have key roles in metabolism, e.g. ESRRG, RXRG, PPARGC1A, TCF7L2, LHX4, MAML2, NFATC3, NFKBIZ, TCEA1, CDCA7L, LZTFL1 or CBFB. The most enriched biological pathways in this list were associated with behaviour, immunity, nervous system, and neurotransmitters, including melatonin, glutamate receptor, and gustation pathways. Finally, an expression GWAS allowed identifying 269 SNPs associated with the candidate genes' expression (eSNPs). Addition of these eSNPs to the AWM panel of 829 SNPs did not improve the accuracy of genomic predictions. CONCLUSIONS Candidate genes that have a direct or indirect effect on FE-related traits belong to various biological processes that are mainly related to immunity, behaviour, energy metabolism, and the nervous system. The pituitary gland, hypothalamus and thyroid axis, and estrogen signalling play fundamental roles in the regulation of FE in pigs. The 829 selected SNPs explained 61% of the phenotypic variance of RFI, which constitutes a promising perspective for applying genetic selection on FE relying on molecular-based prediction.
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Affiliation(s)
- Yuliaxis Ramayo-Caldas
- 0000 0001 1943 6646grid.8581.4Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain
| | - Emilio Mármol-Sánchez
- grid.7080.fDepartment of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSCIC-IRTA-UAB-UB, Campus de LA Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Maria Ballester
- 0000 0001 1943 6646grid.8581.4Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain
| | - Juan Pablo Sánchez
- 0000 0001 1943 6646grid.8581.4Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain
| | - Rayner González-Prendes
- grid.7080.fDepartment of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSCIC-IRTA-UAB-UB, Campus de LA Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Marcel Amills
- grid.7080.fDepartment of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSCIC-IRTA-UAB-UB, Campus de LA Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- grid.7080.fDepartament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Raquel Quintanilla
- 0000 0001 1943 6646grid.8581.4Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain
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Humby T, Davies W. Brain Gene Expression in a Novel Mouse Model of Postpartum Mood Disorder. Transl Neurosci 2019; 10:168-174. [PMID: 31410299 PMCID: PMC6689211 DOI: 10.1515/tnsci-2019-0030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/26/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Steroid sulfatase (STS) cleaves sulfate groups from steroid hormones; its expression/activity increases in late pregnancy and into the postpartum period. STS-deficient human and mouse mothers display elevated psychopathology and abnormal behaviour respectively; in mice, these effects can be partially normalised by antipsychotic (ziprasidone) administration. METHODOLOGY We compared brain gene expression in new mouse mothers administered the STS inhibitor 667-Coumate, or vehicle; significant changes were followed-up with pathway analysis and quantitative polymerase chain reaction (qPCR). Finally, the effects of combined 667-Coumate and ziprasidone administration on expression of the most robustly differentially-expressed genes were examined. RESULTS Surprisingly, no between-group gene expression changes were detected at a False Discovery Rate (FDR)-corrected p<0.1. 1,081 unique expression changes were detected at p<0.05, two top hits were verified by qPCR, and pathway analysis indicated enrichment of genes involved in olfactory transduction. The expression of Stoml3 and Cyp2g1 was unaffected by ziprasidone administration. CONCLUSIONS Postpartum behavioural abnormalities in STS-deficient mothers are likely to be the culmination of many small gene expression changes. Our data are consistent with the idea that olfactory function is key to maternal behaviour in mice, and suggest that aberrant expression of olfactory system genes may underlie abnormal maternal behaviour in STS-deficient women.
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Affiliation(s)
- Trevor Humby
- School of Psychology, Cardiff University, Cardiff CF10 3AT, Cardiff, UK
- Neuroscience and Mental Health Research Institute, Cardiff University, CardiffCF24 4HQ, UK
- Medical Research Council Centre for Neuropsychiatric Genetics and Genomics and Division of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, CardiffCF24 4HQ, UK
| | - William Davies
- School of Psychology, Cardiff University, Cardiff CF10 3AT, Cardiff, UK
- Neuroscience and Mental Health Research Institute, Cardiff University, CardiffCF24 4HQ, UK
- Medical Research Council Centre for Neuropsychiatric Genetics and Genomics and Division of Psychological Medicine and Clinical Neurosciences, School of Medicine, Cardiff University, CardiffCF24 4HQ, UK
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Anti-inflammatory nutrition with high protein attenuates cardiac and skeletal muscle alterations in a pulmonary arterial hypertension model. Sci Rep 2019; 9:10160. [PMID: 31308383 PMCID: PMC6629640 DOI: 10.1038/s41598-019-46331-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/23/2019] [Indexed: 02/06/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is characterized by remodelling of the pulmonary arteries and right ventricle (RV), which leads to functional decline of cardiac and skeletal muscle. This study investigated the effects of a multi-targeted nutritional intervention with extra protein, leucine, fish oil and oligosaccharides on cardiac and skeletal muscle in PAH. PAH was induced in female C57BL/6 mice by weekly injections of monocrotaline (MCT) for 8 weeks. Control diet (sham and MCT group) and isocaloric nutritional intervention (MCT + NI) were administered. Compared to sham, MCT mice increased heart weight by 7%, RV thickness by 13% and fibrosis by 60% (all p < 0.05) and these were attenuated in MCT + NI mice. Microarray and qRT-PCR analysis of RV confirmed effects on fibrotic pathways. Skeletal muscle fiber atrophy was induced (P < 0.05) by 22% in MCT compared to sham mice, but prevented in MCT + NI group. Our findings show that a multi-targeted nutritional intervention attenuated detrimental alterations to both cardiac and skeletal muscle in a mouse model of PAH, which provides directions for future therapeutic strategies targeting functional decline of both tissues.
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41
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González-Prendes R, Mármol-Sánchez E, Quintanilla R, Castelló A, Zidi A, Ramayo-Caldas Y, Cardoso TF, Manunza A, Cánovas Á, Amills M. About the existence of common determinants of gene expression in the porcine liver and skeletal muscle. BMC Genomics 2019; 20:518. [PMID: 31234802 PMCID: PMC6591854 DOI: 10.1186/s12864-019-5889-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 06/07/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The comparison of expression QTL (eQTL) maps obtained in different tissues is an essential step to understand how gene expression is genetically regulated in a context-dependent manner. In the current work, we have compared the transcriptomic and eQTL profiles of two porcine tissues (skeletal muscle and liver) which typically show highly divergent expression profiles, in 103 Duroc pigs genotyped with the Porcine SNP60 BeadChip (Illumina) and with available microarray-based measurements of hepatic and muscle mRNA levels. Since structural variation could have effects on gene expression, we have also investigated the co-localization of cis-eQTLs with copy number variant regions (CNVR) segregating in this Duroc population. RESULTS The analysis of differential expresssion revealed the existence of 1204 and 1490 probes that were overexpressed and underexpressed in the gluteus medius muscle when compared to liver, respectively (|fold-change| > 1.5, q-value < 0.05). By performing genome scans in 103 Duroc pigs with available expression and genotypic data, we identified 76 and 28 genome-wide significant cis-eQTLs regulating gene expression in the gluteus medius muscle and liver, respectively. Twelve of these cis-eQTLs were shared by both tissues (i.e. 42.8% of the cis-eQTLs identified in the liver were replicated in the gluteus medius muscle). These results are consistent with previous studies performed in humans, where 50% of eQTLs were shared across tissues. Moreover, we have identified 41 CNVRs in a set of 350 pigs from the same Duroc population, which had been genotyped with the Porcine SNP60 BeadChip by using the PennCNV and GADA softwares, but only a small proportion of these CNVRs co-localized with the cis-eQTL signals. CONCLUSION Despite the fact that there are considerable differences in the gene expression patterns of the porcine liver and skeletal muscle, we have identified a substantial proportion of common cis-eQTLs regulating gene expression in both tissues. Several of these cis-eQTLs influence the mRNA levels of genes with important roles in meat (CTSF) and carcass quality (TAPT1), lipid metabolism (TMEM97) and obesity (MARC2), thus evidencing the practical importance of dissecting the genetic mechanisms involved in their expression.
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Affiliation(s)
- Rayner González-Prendes
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain.,Departament de Producció Animal-Agrotecnio Center, Universitat de Lleida, 191 Rovira Roure, 25198, Lleida, Spain
| | - Emilio Mármol-Sánchez
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Raquel Quintanilla
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140, Caldes de Montbui, Spain
| | - Anna Castelló
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Ali Zidi
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Yuliaxis Ramayo-Caldas
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Tainã Figueiredo Cardoso
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain.,CAPES Foundation, Ministry of Education of Brazil, Brasilia D. F, Zip Code 70.040-020, Brazil
| | - Arianna Manunza
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain
| | - Ángela Cánovas
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain.,Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, N1G 2W1, Canada
| | - Marcel Amills
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, Bellaterra, 08193, Barcelona, Spain. .,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
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Park HR, Harris SM, Boldenow E, McEachin RC, Sartor M, Chames M, Loch-Caruso R. Group B streptococcus activates transcriptomic pathways related to premature birth in human extraplacental membranes in vitro. Biol Reprod 2019; 98:396-407. [PMID: 29155939 DOI: 10.1093/biolre/iox147] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 11/14/2017] [Indexed: 12/21/2022] Open
Abstract
Streptococcus agalactiae (group B streptococcus [GBS]) infection in pregnant women is the leading cause of infectious neonatal morbidity and mortality in the United States. Although inflammation during infection has been associated with preterm birth, the contribution of GBS to preterm birth is less certain. Moreover, the early mechanisms by which GBS interacts with the gestational tissue to affect adverse pregnancy outcomes are poorly understood. We hypothesized that short-term GBS inoculation activates pathways related to inflammation and premature birth in human extraplacental membranes. We tested this hypothesis using GBS-inoculated human extraplacental membranes in vitro. In agreement with our hypothesis, a microarray-based transcriptomics analysis of gene expression changes in GBS-inoculated membranes revealed that GBS activated pathways related to inflammation and preterm birth with significant gene expression changes occurring as early as 4 h postinoculation. In addition, pathways related to DNA replication and repair were downregulated with GBS treatment. Conclusions based on our transcriptomics data were further supported by responses of prostaglandin E2 (PGE2), and matrix metalloproteinases 1 (MMP1) and 3 (MMP3), all of which are known to be involved in parturition and premature rupture of membranes. These results support our initial hypothesis and provide new information on molecular targets of GBS infection in human extraplacental membranes.
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Affiliation(s)
- Hae-Ryung Park
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA.,Department of Molecular and Integrative Physiological Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Sean M Harris
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
| | - Erica Boldenow
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biology, Calvin College, Grand Rapids, Michigan
| | - Richard C McEachin
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
| | - Maureen Sartor
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA
| | - Mark Chames
- Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, Michigan, USA
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Hangelbroek RWJ, Vaes AMM, Boekschoten MV, Verdijk LB, Hooiveld GJEJ, van Loon LJC, de Groot LCPGM, Kersten S. No effect of 25-hydroxyvitamin D supplementation on the skeletal muscle transcriptome in vitamin D deficient frail older adults. BMC Geriatr 2019; 19:151. [PMID: 31138136 PMCID: PMC6540468 DOI: 10.1186/s12877-019-1156-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 05/10/2019] [Indexed: 12/19/2022] Open
Abstract
Objective Vitamin D deficiency is common among older adults and has been linked to muscle weakness. Vitamin D supplementation has been proposed as a strategy to improve muscle function in older adults. The aim of this study was to investigate the effect of calcifediol (25-hydroxycholecalciferol) on whole genome gene expression in skeletal muscle of vitamin D deficient frail older adults. Methods A double-blind placebo-controlled trial was conducted in vitamin D deficient frail older adults (aged above 65), characterized by blood 25-hydroxycholecalciferol concentrations between 20 and 50 nmol/L. Subjects were randomized across the placebo group and the calcifediol group (10 μg per day). Muscle biopsies were obtained before and after 6 months of calcifediol (n = 10) or placebo (n = 12) supplementation and subjected to whole genome gene expression profiling using Affymetrix HuGene 2.1ST arrays. Results Expression of the vitamin D receptor gene was virtually undetectable in human skeletal muscle biopsies, with Ct values exceeding 30. Blood 25-hydroxycholecalciferol levels were significantly higher after calcifediol supplementation (87.3 ± 20.6 nmol/L) than after placebo (43.8 ± 14.1 nmol/L). No significant difference between treatment groups was observed on strength outcomes. The whole transcriptome effects of calcifediol and placebo were very weak, as indicated by the fact that correcting for multiple testing using false discovery rate did not yield any differentially expressed genes using any reasonable cut-offs (all q-values ~ 1). P-values were uniformly distributed across all genes, suggesting that low p-values are likely to be false positives. Partial least squares-discriminant analysis and principle component analysis was unable to separate treatment groups. Conclusion Calcifediol supplementation did not significantly affect the skeletal muscle transcriptome in frail older adults. Our findings indicate that vitamin D supplementation has no effects on skeletal muscle gene expression, suggesting that skeletal muscle may not be a direct target of vitamin D in older adults. Trial registration This study was registered at clinicaltrials.gov as NCT02349282 on January 28, 2015.
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Affiliation(s)
- Roland W J Hangelbroek
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Anouk M M Vaes
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Lex B Verdijk
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Department of Human Biology and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, P.O. Box 616, 6200, MD, Maastricht, The Netherlands
| | - Guido J E J Hooiveld
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Luc J C van Loon
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Department of Human Biology and Movement Sciences, NUTRIM School for Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre, P.O. Box 616, 6200, MD, Maastricht, The Netherlands
| | - Lisette C P G M de Groot
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands.,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands
| | - Sander Kersten
- Top Institute Food and Nutrition, P.O. Box 557, 6700, AN, Wageningen, The Netherlands. .,Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708, WE, Wageningen, The Netherlands.
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44
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Rouschop SH, Karl T, Risch A, van Ewijk PA, Schrauwen-Hinderling VB, Opperhuizen A, van Schooten FJ, Godschalk RW. Gene expression and DNA methylation as mechanisms of disturbed metabolism in offspring after exposure to a prenatal HF diet. J Lipid Res 2019; 60:1250-1259. [PMID: 31064776 PMCID: PMC6602131 DOI: 10.1194/jlr.m092593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/03/2019] [Indexed: 12/17/2022] Open
Abstract
Exposure to a prenatal high-fat (HF) diet leads to an impaired metabolic phenotype in mouse offspring. The underlying mechanisms, however, are not yet fully understood. Therefore, this study investigated whether the impaired metabolic phenotype may be mediated through altered hepatic DNA methylation and gene expression. We showed that exposure to a prenatal HF diet altered the offspring’s hepatic gene expression of pathways involved in lipid synthesis and uptake (SREBP), oxidative stress response [nuclear factor (erythroid-derived 2)-like 2 (Nrf2)], and cell proliferation. The downregulation of the SREBP pathway related to previously reported decreased hepatic lipid uptake and postprandial hypertriglyceridemia in the offspring exposed to the prenatal HF diet. The upregulation of the Nrf2 pathway was associated with increased oxidative stress levels in offspring livers. The prenatal HF diet also induced hypermethylation of transcription factor (TF) binding sites upstream of lipin 1 (Lpin1), a gene involved in lipid metabolism. Furthermore, DNA methylation of Lpin1 TF binding sites correlated with mRNA expression of Lpin1. These findings suggest that the effect of a prenatal HF diet on the adult offspring’s metabolic phenotype are regulated by changes in hepatic gene expression and DNA methylation.
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Affiliation(s)
- Sven H Rouschop
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Tanja Karl
- Department of Biosciences University of Salzburg, Salzburg, Austria
| | - Angela Risch
- Department of Biosciences University of Salzburg, Salzburg, Austria
| | - Petronella A van Ewijk
- Department of Radiology and Nuclear Medicine Maastricht University Medical Center, Maastricht, The Netherlands
| | - Vera B Schrauwen-Hinderling
- Department of Radiology and Nuclear Medicine Maastricht University Medical Center, Maastricht, The Netherlands
| | - Antoon Opperhuizen
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.,Netherlands Food and Consumer Product Safety Authority (NVWA), Utrecht, The Netherlands
| | - Frederik J van Schooten
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Roger W Godschalk
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
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45
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In utero sFlt-1 exposure differentially affects gene expression patterns in fetal liver. J Dev Orig Health Dis 2019; 10:353-361. [PMID: 30968813 DOI: 10.1017/s2040174418000831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The soluble fms-like tyrosine kinase factor 1 (sFlt-1) is a major contributor to antiangiogenesis during preeclampsia. However, little is known about the effects of sFlt-1 on fetal health. In this study we aim to evaluate the effects of the sFlt-1 concentration during pregnancy on fetal liver physiology. We used adenoviral gene delivery in Sprague-Dawley dams (seven females, 10 weeks old) during mid-gestation (gestational day 8) with adenovirus overexpressing sFlt-1, and age-matched controls (six females, 10 weeks old) with empty adenoviral virus in order to quantify the sFlt-1 concentrations in pregnant dams. Dams exposed to adenoviral sFlt-1 delivery were subdivided into a low (n=4) and high sFlt-1 (n=3) group based on host response to the virus. One-way analysis of variance showed that fetuses (five per dam) exposed to high sFlt-1 concentrations in utero show fetal growth restriction (1.84±0.043 g high sFlt-1 v. 2.32±0.036 g control; mean (M)±s.e.m.; P<0.001), without hypertension or proteinuria in the dams. In continuation, the microarray analysis of the fetal liver of the high sFlt-1 group showed significant enrichment of key genes for fatty acid metabolism and Ppara targets. In addition, using pyrosequencing, we found that the Ppara enrichment in the high sFlt-1 group is accompanied by decreased methylation of its promoter (1.89±0.097 mean % methylation in high sFlt-1 v. 2.26±0.095 mean % methylation in control, M±s.e.m., P<0.02). Our data show that high sFlt-1 concentrations during pregnancy have detrimental effects on the fatty acid metabolism genes and the Ppara targets in the fetal liver.
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46
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Ruppert PMM, Park JG, Xu X, Hur KY, Lee AH, Kersten S. Transcriptional profiling of PPARα-/- and CREB3L3-/- livers reveals disparate regulation of hepatoproliferative and metabolic functions of PPARα. BMC Genomics 2019; 20:199. [PMID: 30866796 PMCID: PMC6416987 DOI: 10.1186/s12864-019-5563-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 02/25/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Peroxisome Proliferator-Activated receptor α (PPARα) and cAMP-Responsive Element Binding Protein 3-Like 3 (CREB3L3) are transcription factors involved in the regulation of lipid metabolism in the liver. The aim of the present study was to characterize the interrelationship between PPARα and CREB3L3 in regulating hepatic gene expression. Male wild-type, PPARα-/-, CREB3L3-/- and combined PPARα/CREB3L3-/- mice were subjected to a 16-h fast or 4 days of ketogenic diet. Whole genome expression analysis was performed on liver samples. RESULTS Under conditions of overnight fasting, the effects of PPARα ablation and CREB3L3 ablation on plasma triglyceride, plasma β-hydroxybutyrate, and hepatic gene expression were largely disparate, and showed only limited interdependence. Gene and pathway analysis underscored the importance of CREB3L3 in regulating (apo)lipoprotein metabolism, and of PPARα as master regulator of intracellular lipid metabolism. A small number of genes, including Fgf21 and Mfsd2a, were under dual control of PPARα and CREB3L3. By contrast, a strong interaction between PPARα and CREB3L3 ablation was observed during ketogenic diet feeding. Specifically, the pronounced effects of CREB3L3 ablation on liver damage and hepatic gene expression during ketogenic diet were almost completely abolished by the simultaneous ablation of PPARα. Loss of CREB3L3 influenced PPARα signalling in two major ways. Firstly, it reduced expression of PPARα and its target genes involved in fatty acid oxidation and ketogenesis. In stark contrast, the hepatoproliferative function of PPARα was markedly activated by loss of CREB3L3. CONCLUSIONS These data indicate that CREB3L3 ablation uncouples the hepatoproliferative and lipid metabolic effects of PPARα. Overall, except for the shared regulation of a very limited number of genes, the roles of PPARα and CREB3L3 in hepatic lipid metabolism are clearly distinct and are highly dependent on dietary status.
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Affiliation(s)
- Philip M. M. Ruppert
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708WE, Wageningen, the Netherlands
| | - Jong-Gil Park
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065 USA
- Present address: Biotherapeutics Translational Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141 South Korea
| | - Xu Xu
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065 USA
- Present address: Division of Gastroenterology and Hepatology, Joan & Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10021 USA
| | - Kyu Yeon Hur
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicin, Seoul, South Korea
| | - Ann-Hwee Lee
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, 1300 York Ave, New York, NY 10065 USA
- Present address: Regeneron Pharmaceuticals, 777 Old Saw Mill River Rd, Tarrytown, NY 10591 USA
| | - Sander Kersten
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Stippeneng 4, 6708WE, Wageningen, the Netherlands
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47
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González-Prendes R, Quintanilla R, Mármol-Sánchez E, Pena RN, Ballester M, Cardoso TF, Manunza A, Casellas J, Cánovas Á, Díaz I, Noguera JL, Castelló A, Mercadé A, Amills M. Comparing the mRNA expression profile and the genetic determinism of intramuscular fat traits in the porcine gluteus medius and longissimus dorsi muscles. BMC Genomics 2019; 20:170. [PMID: 30832586 PMCID: PMC6399881 DOI: 10.1186/s12864-019-5557-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 02/22/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Intramuscular fat (IMF) content and composition have a strong impact on the nutritional and organoleptic properties of porcine meat. The goal of the current work was to compare the patterns of gene expression and the genetic determinism of IMF traits in the porcine gluteus medius (GM) and longissimus dorsi (LD) muscles. RESULTS A comparative analysis of the mRNA expression profiles of the pig GM and LD muscles in 16 Duroc pigs with available microarray mRNA expression measurements revealed the existence of 106 differentially expressed probes (fold-change > 1.5 and q-value < 0.05). Amongst the genes displaying the most significant differential expression, several loci belonging to the Hox transcription factor family were either upregulated (HOXA9, HOXA10, HOXB6, HOXB7 and TBX1) or downregulated (ARX) in the GM muscle. Differences in the expression of genes with key roles in carbohydrate and lipid metabolism (e.g. FABP3, ORMDL1 and SLC37A1) were also detected. By performing a GWAS for IMF content and composition traits recorded in the LD and GM muscles of 350 Duroc pigs, we identified the existence of one region on SSC14 (110-114 Mb) displaying significant associations with C18:0, C18:1(n-7), saturated and unsaturated fatty acid contents in both GM and LD muscles. Moreover, we detected several genome-wide significant associations that were not consistently found in both muscles. Further studies should be performed to confirm whether these associations are muscle-specific. Finally, the performance of an eQTL scan for 74 genes, located within GM QTL regions and with available microarray measurements of gene expression, made possible to identify 14 cis-eQTL regulating the expression of 14 loci, and six of them were confirmed by RNA-Seq. CONCLUSIONS We have detected significant differences in the mRNA expression patterns of the porcine LD and GM muscles, evidencing that the transcriptomic profile of the skeletal muscle tissue is affected by anatomical, metabolic and functional factors. A highly significant association with IMF composition on SSC14 was replicated in both muscles, highlighting the existence of a common genetic determinism, but we also observed the existence of a few associations whose magnitude and significance varied between LD and GM muscles.
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Affiliation(s)
- Rayner González-Prendes
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Raquel Quintanilla
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198 Lleida, Spain
| | - Emilio Mármol-Sánchez
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Ramona N. Pena
- Departament de Ciència Animal, Universitat de Lleida-Agrotecnio Centre, 25198 Lleida, Spain
| | - Maria Ballester
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198 Lleida, Spain
| | - Tainã Figueiredo Cardoso
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- CAPES Foundation, Ministry of Education of Brazil, Brasilia, DF 70.040-020 Brazil
| | - Arianna Manunza
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Joaquim Casellas
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Ángela Cánovas
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1 Canada
| | - Isabel Díaz
- Institute for Research and Technology in Food and Agriculture (IRTA), Tecnologia dels Aliments, 17121 Monells, Spain
| | - José Luis Noguera
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Rovira Roure 191, 25198 Lleida, Spain
| | - Anna Castelló
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Anna Mercadé
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Marcel Amills
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Perdijk O, van Baarlen P, Fernandez-Gutierrez MM, van den Brink E, Schuren FHJ, Brugman S, Savelkoul HFJ, Kleerebezem M, van Neerven RJJ. Sialyllactose and Galactooligosaccharides Promote Epithelial Barrier Functioning and Distinctly Modulate Microbiota Composition and Short Chain Fatty Acid Production In Vitro. Front Immunol 2019; 10:94. [PMID: 30809221 PMCID: PMC6380229 DOI: 10.3389/fimmu.2019.00094] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 01/14/2019] [Indexed: 12/20/2022] Open
Abstract
Human milk oligosaccharides (HMO) and prebiotic oligosaccharides are proposed to confer several health benefits to the infant. They shape the microbiota, have anti-inflammatory properties, and support epithelial barrier functioning. However, in order to select the best oligosaccharides for inclusion in infant formulas, there is a need to increase our understanding of the specific effects of HMO and prebiotics on the host immune system. Therefore, we investigated the effects of the HMO sialyllactose (SL), and galactooligosaccharides (GOS) on epithelial barrier functioning, microbiota composition, and SCFA production. The effect of GOS and SL on epithelial barrier functioning and microbiota composition was investigated using in vitro models. Epithelial barrier function was investigated by transcriptome analysis of fully polarized Caco-2 cells exposed for 6 h to SL or GOS. In addition, epithelial cell growth, alkaline phosphatase production, and re-epithelization was studied. Further, we investigated the effect of SL and GOS on microbiota composition and SCFA production using in vitro fecal batch cultures. Transcriptome analysis showed that SL and GOS both induced pathways that regulate cell cycle control. This gene-expression profile translated to a phenotype of halted proliferation and included the induction of alkaline phosphatase activity, a marker of epithelial cell differentiation. SL and GOS also promoted re-epithelialization in an in vitro epithelial wound repair assay. SL and GOS did show distinct modulation of microbiota composition, promoting the outgrowth of Bacteroides and bifidobacteria, respectively, which resulted in distinct changes in SCFA production profiles. Our results show that SL and GOS can both modulate epithelial barrier function by inducing differentiation and epithelial wound repair, but differentially promote the growth of specific genera in the microbiota, which is associated with differential changes in SCFA profiles.
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Affiliation(s)
- Olaf Perdijk
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Peter van Baarlen
- Host-Microbe Interactomics Group, Wageningen University & Research, Wageningen, Netherlands
| | | | - Erik van den Brink
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Frank H. J. Schuren
- Microbiology and Systems Biology, The Netherlands Organization for Applied Scientific Research, Zeist, Netherlands
| | - Sylvia Brugman
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - Michiel Kleerebezem
- Host-Microbe Interactomics Group, Wageningen University & Research, Wageningen, Netherlands
| | - R. J. Joost van Neerven
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
- FrieslandCampina, Amersfoort, Netherlands
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49
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Sovran B, Hugenholtz F, Elderman M, Van Beek AA, Graversen K, Huijskes M, Boekschoten MV, Savelkoul HFJ, De Vos P, Dekker J, Wells JM. Age-associated Impairment of the Mucus Barrier Function is Associated with Profound Changes in Microbiota and Immunity. Sci Rep 2019; 9:1437. [PMID: 30723224 PMCID: PMC6363726 DOI: 10.1038/s41598-018-35228-3] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 10/16/2018] [Indexed: 02/07/2023] Open
Abstract
Aging significantly increases the vulnerability to gastrointestinal (GI) disorders but there are few studies investigating the key factors in aging that affect the GI tract. To address this knowledge gap, we used 10-week- and 19-month-old litter-mate mice to investigate microbiota and host gene expression changes in association with ageing. In aged mice the thickness of the colonic mucus layer was reduced about 6-fold relative to young mice, and more easily penetrable by luminal bacteria. This was linked to increased apoptosis of goblet cells in the upper part of the crypts. The barrier function of the small intestinal mucus was also compromised and the microbiota were frequently observed in contact with the villus epithelium. Antimicrobial Paneth cell factors Ang4 and lysozyme were expressed in significantly reduced amounts. These barrier defects were accompanied by major changes in the faecal microbiota and significantly decreased abundance of Akkermansia muciniphila which is strongly and negatively affected by old age in humans. Transcriptomics revealed age-associated decreases in the expression of immunity and other genes in intestinal mucosal tissue, including decreased T cell-specific transcripts and T cell signalling pathways. The physiological and immunological changes we observed in the intestine in old age, could have major consequences beyond the gut.
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Affiliation(s)
- Bruno Sovran
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Floor Hugenholtz
- Laboratory of Microbiology, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Marlies Elderman
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Adriaan A Van Beek
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Katrine Graversen
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Myrte Huijskes
- Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Mark V Boekschoten
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Division of Human Nutrition, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Huub F J Savelkoul
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Cell Biology and Immunology Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Paul De Vos
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Dekker
- Top Institute Food and Nutrition, Wageningen, The Netherlands.,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands
| | - Jerry M Wells
- Top Institute Food and Nutrition, Wageningen, The Netherlands. .,Host-Microbe Interactomics Group, Wageningen University and Research Center, Wageningen, The Netherlands.
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50
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Hare KS, Leal LN, Romao JM, Hooiveld GJ, Soberon F, Berends H, Van Amburgh ME, Martín-Tereso J, Steele MA. Preweaning nutrient supply alters mammary gland transcriptome expression relating to morphology, lipid accumulation, DNA synthesis, and RNA expression in Holstein heifer calves. J Dairy Sci 2019; 102:2618-2630. [PMID: 30612800 DOI: 10.3168/jds.2018-15699] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 11/04/2018] [Indexed: 01/16/2023]
Abstract
The objective of this study was to analyze the mammary gland transcriptome to determine how preweaning nutrient supply alters the molecular mechanisms that regulate preweaning mammary development. Holstein heifers were fed via milk replacer (MR) either an elevated level of nutrient intake (ELE; on average, 5.9 ± 0.2 Mcal of ME in 8.4 L of MR/d, n = 6) or a restricted amount of nutrients (RES; 2.8 ± 0.2 Mcal of ME in 4 L of MR/d, n = 5) for 54 d after birth, at which point they were slaughtered and samples of mammary parenchyma tissue were obtained. Parenchymal mRNA was analyzed, and the fold change (FC) of 18,111 genes (ELE relative to RES) was uploaded to Ingenuity Pathway Analysis (IPA) software (Qiagen Bioinformatics, Redwood City, CA) for transcriptomic analysis. Using a threshold of P < 0.05, IPA identified that the FC of 1,931 of 18,811 differentially expressed genes (DEG) could be used for the analysis. A total of 18 molecular and cellular functions were relevant to DEG arising from the treatments; the 5 functions most associated with DEG were cell death and survival, cellular movement, cellular development, cellular growth and proliferation, and lipid metabolism. Based on the directional FC of DEG, the mammary gland of ELE heifers was predicted to have increased epithelial-mesenchymal transition (Z = 2.685) and accumulation of lipid (Z = 2.322), whereas the synthesis of DNA (Z = -2.137), transactivation of RNA (Z = -2.254), expression of RNA (Z = -2.405), transcription (Z = -2.482), and transactivation (Z = -2.611) were all predicted to be decreased. Additionally, IPA predicted the activation status of 13 upstream regulators with direct influence on DEG as affected by ELE feeding that were ligand-dependent nuclear receptors (n = 2), enzymes (n = 1), or transcription regulators (n = 10). Of these, 6 were activated (Z > 2) and 7 were inhibited (Z < -2). In summary, feeding ELE preweaning altered the mammary transcriptome of Holstein heifers, affecting cell functions involved in the morphological and physiological development of the mammary gland.
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Affiliation(s)
- K S Hare
- Department of Animal Bioscience, Animal Science and Nutrition, University of Guelph, Guelph, ON N1G 1Y2, Canada
| | - L N Leal
- R&D, Trouw Nutrition, PO Box 299, Amersfoort, 3800 AG, the Netherlands
| | - J M Romao
- Department of Agricultural, Food and Nutritional Science, Faculty of Agricultural, Life and Environmental Sciences, University of Alberta, Alberta, AB T6G 2P5, Canada
| | - G J Hooiveld
- Department of Agrotechnology and Food Sciences, Division of Human Nutrition and Health, Wageningen University, PO Box 17, Wageningen, 6700 AA, the Netherlands
| | - F Soberon
- Trouw Nutrition USA, Highland, IL 62249
| | - H Berends
- R&D, Trouw Nutrition, PO Box 299, Amersfoort, 3800 AG, the Netherlands
| | - M E Van Amburgh
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14850
| | - J Martín-Tereso
- R&D, Trouw Nutrition, PO Box 299, Amersfoort, 3800 AG, the Netherlands
| | - M A Steele
- Department of Animal Bioscience, Animal Science and Nutrition, University of Guelph, Guelph, ON N1G 1Y2, Canada.
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