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Li VL, Xiao S, Schlosser P, Scherer N, Wiggenhorn AL, Spaas J, Tung ASH, Karoly ED, Köttgen A, Long JZ. SLC17 transporters mediate renal excretion of Lac-Phe in mice and humans. bioRxiv 2024:2024.04.18.589815. [PMID: 38659895 PMCID: PMC11042375 DOI: 10.1101/2024.04.18.589815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
N-lactoyl-phenylalanine (Lac-Phe) is a lactate-derived metabolite that suppresses food intake and body weight. Little is known about the mechanisms that mediate Lac-Phe transport across cell membranes. Here we identify SLC17A1 and SLC17A3, two kidney-restricted plasma membrane-localized solute carriers, as physiologic urine Lac-Phe transporters. In cell culture, SLC17A1/3 exhibit high Lac-Phe efflux activity. In humans, levels of Lac-Phe in urine exhibit a strong genetic association with the SLC17A1-4 locus. Urine Lac-Phe levels are also increased following a Wingate sprint test. In mice, genetic ablation of either SLC17A1 or SLC17A3 reduces urine Lac-Phe levels. Despite these differences, both knockout strains have normal blood Lac-Phe and body weights, demonstrating that urine and plasma Lac-Phe pools are functionally and biochemically de-coupled. Together, these data establish SLC17 family members as the physiologic urine transporters for Lac-Phe and uncover a biochemical pathway for the renal excretion of this signaling metabolite.
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2
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Schlosser P, Scherer N, Grundner-Culemann F, Monteiro-Martins S, Haug S, Steinbrenner I, Uluvar B, Wuttke M, Cheng Y, Ekici AB, Gyimesi G, Karoly ED, Kotsis F, Mielke J, Gomez MF, Yu B, Grams ME, Coresh J, Boerwinkle E, Köttgen M, Kronenberg F, Meiselbach H, Mohney RP, Akilesh S, Schmidts M, Hediger MA, Schultheiss UT, Eckardt KU, Oefner PJ, Sekula P, Li Y, Köttgen A. Genetic studies of paired metabolomes reveal enzymatic and transport processes at the interface of plasma and urine. Nat Genet 2023:10.1038/s41588-023-01409-8. [PMID: 37277652 DOI: 10.1038/s41588-023-01409-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 04/26/2023] [Indexed: 06/07/2023]
Abstract
The kidneys operate at the interface of plasma and urine by clearing molecular waste products while retaining valuable solutes. Genetic studies of paired plasma and urine metabolomes may identify underlying processes. We conducted genome-wide studies of 1,916 plasma and urine metabolites and detected 1,299 significant associations. Associations with 40% of implicated metabolites would have been missed by studying plasma alone. We detected urine-specific findings that provide information about metabolite reabsorption in the kidney, such as aquaporin (AQP)-7-mediated glycerol transport, and different metabolomic footprints of kidney-expressed proteins in plasma and urine that are consistent with their localization and function, including the transporters NaDC3 (SLC13A3) and ASBT (SLC10A2). Shared genetic determinants of 7,073 metabolite-disease combinations represent a resource to better understand metabolic diseases and revealed connections of dipeptidase 1 with circulating digestive enzymes and with hypertension. Extending genetic studies of the metabolome beyond plasma yields unique insights into processes at the interface of body compartments.
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Affiliation(s)
- Pascal Schlosser
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany.
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Nora Scherer
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Franziska Grundner-Culemann
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Sara Monteiro-Martins
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Stefan Haug
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Inga Steinbrenner
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Burulça Uluvar
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Matthias Wuttke
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Yurong Cheng
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Arif B Ekici
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Gergely Gyimesi
- Membrane Transport Discovery Lab, Department of Nephrology and Hypertension and Department of Biomedical Research, University of Bern, Bern, Switzerland
| | | | - Fruzsina Kotsis
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
- Department of Medicine IV-Nephrology and Primary Care, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Johanna Mielke
- Research and Early Development, Pharmaceuticals Division, Bayer AG, Wuppertal, Germany
| | - Maria F Gomez
- Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, Lund, Sweden
| | - Bing Yu
- Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Morgan E Grams
- New York University Grossman School of Medicine, New York, NY, USA
| | - Josef Coresh
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Eric Boerwinkle
- Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Michael Köttgen
- Department of Medicine IV-Nephrology and Primary Care, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
- Centre for Integrative Biological Signalling Studies (CIBSS), Albert-Ludwigs-University Freiburg, Freiburg, Germany
| | - Florian Kronenberg
- Institute of Genetic Epidemiology, Department of Genetics, Medical University of Innsbruck, Innsbruck, Austria
| | - Heike Meiselbach
- Department of Nephrology and Hypertension, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | | | - Shreeram Akilesh
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Miriam Schmidts
- Centre for Integrative Biological Signalling Studies (CIBSS), Albert-Ludwigs-University Freiburg, Freiburg, Germany
- Freiburg University Faculty of Medicine, Center for Pediatrics and Adolescent Medicine, University Hospital Freiburg, Freiburg, Germany
| | - Matthias A Hediger
- Membrane Transport Discovery Lab, Department of Nephrology and Hypertension and Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Ulla T Schultheiss
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
- Department of Medicine IV-Nephrology and Primary Care, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Kai-Uwe Eckardt
- Department of Nephrology and Hypertension, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
- Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Peter J Oefner
- Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | - Peggy Sekula
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Yong Li
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany
| | - Anna Köttgen
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center - University of Freiburg, Freiburg, Germany.
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- Centre for Integrative Biological Signalling Studies (CIBSS), Albert-Ludwigs-University Freiburg, Freiburg, Germany.
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3
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Heyman HM, McCulloch SD, Karoly ED, Mitchell MW, Goodman KD, Evans AM. Metabolomics can
spot
the difference:
Dried Blood Spot (DBS)
coming of age in a metabolomics era. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r5469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Hysi PG, Mangino M, Christofidou P, Falchi M, Karoly ED, Mohney RP, Valdes AM, Spector TD, Menni C. Metabolome Genome-Wide Association Study Identifies 74 Novel Genomic Regions Influencing Plasma Metabolites Levels. Metabolites 2022; 12:61. [PMID: 35050183 PMCID: PMC8777659 DOI: 10.3390/metabo12010061] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 01/27/2023] Open
Abstract
Metabolites are small products of metabolism that provide a snapshot of the wellbeing of an organism and the mechanisms that control key physiological processes involved in health and disease. Here we report the results of a genome-wide association study of 722 circulating metabolite levels in 8809 subjects of European origin, providing both breadth and depth. These analyses identified 202 unique genomic regions whose variations are associated with the circulating levels of 478 different metabolites. Replication with a subset of 208 metabolites that were available in an independent dataset for a cohort of 1768 European subjects confirmed the robust associations, including 74 novel genomic regions not associated with any metabolites in previous works. This study enhances our knowledge of genetic mechanisms controlling human metabolism. Our findings have major potential for identifying novel targets and developing new therapeutic strategies.
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Affiliation(s)
- Pirro G. Hysi
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
| | - Massimo Mangino
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
- NIHR Biomedical Research Centre at Guy’s and St. Thomas’ Foundation Trust, London SE1 9RT, UK
| | - Paraskevi Christofidou
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
| | - Mario Falchi
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
| | - Edward D. Karoly
- Discovery and Translational Sciences, Metabolon Inc., Raleigh-Durham, NC 27560, USA; (E.D.K.); (R.P.M.)
| | | | - Robert P. Mohney
- Discovery and Translational Sciences, Metabolon Inc., Raleigh-Durham, NC 27560, USA; (E.D.K.); (R.P.M.)
| | - Ana M. Valdes
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
- Inflammation, Injury and Recovery Sciences, School of Medicine, University of Nottingham, Nottingham NG5 1PB, UK
| | - Tim D. Spector
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
| | - Cristina Menni
- Department of Twin Research and Genetic Epidemiology, King’s College London, London SE1 7EH, UK; (P.G.H.); (M.M.); (P.C.); (M.F.); (A.M.V.)
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5
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Kotsis F, Schultheiss UT, Wuttke M, Schlosser P, Mielke J, Becker MS, Oefner PJ, Karoly ED, Mohney RP, Eckardt KU, Sekula P, Köttgen A. Self-Reported Medication Use and Urinary Drug Metabolites in the German Chronic Kidney Disease (GCKD) Study. J Am Soc Nephrol 2021; 32:2315-2329. [PMID: 34140400 PMCID: PMC8729827 DOI: 10.1681/asn.2021010063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/31/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Polypharmacy is common among patients with CKD, but little is known about the urinary excretion of many drugs and their metabolites among patients with CKD. METHODS To evaluate self-reported medication use in relation to urine drug metabolite levels in a large cohort of patients with CKD, the German Chronic Kidney Disease study, we ascertained self-reported use of 158 substances and 41 medication groups, and coded active ingredients according to the Anatomical Therapeutic Chemical Classification System. We used a nontargeted mass spectrometry-based approach to quantify metabolites in urine; calculated specificity, sensitivity, and accuracy of medication use and corresponding metabolite measurements; and used multivariable regression models to evaluate associations and prescription patterns. RESULTS Among 4885 participants, there were 108 medication-drug metabolite pairs on the basis of reported medication use and 78 drug metabolites. Accuracy was excellent for measurements of 36 individual substances in which the unchanged drug was measured in urine (median, 98.5%; range, 61.1%-100%). For 66 pairs of substances and their related drug metabolites, median measurement-based specificity and sensitivity were 99.2% (range, 84.0%-100%) and 71.7% (range, 1.2%-100%), respectively. Commonly prescribed medications for hypertension and cardiovascular risk reduction-including angiotensin II receptor blockers, calcium channel blockers, and metoprolol-showed high sensitivity and specificity. Although self-reported use of prescribed analgesics (acetaminophen, ibuprofen) was <3% each, drug metabolite levels indicated higher usage (acetaminophen, 10%-26%; ibuprofen, 10%-18%). CONCLUSIONS This comprehensive screen of associations between urine drug metabolite levels and self-reported medication use supports the use of pharmacometabolomics to assess medication adherence and prescription patterns in persons with CKD, and indicates under-reported use of medications available over the counter, such as analgesics.
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Affiliation(s)
- Fruzsina Kotsis
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany,Department of Medicine IV: Nephrology and Primary Care, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
| | - Ulla T. Schultheiss
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany,Department of Medicine IV: Nephrology and Primary Care, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
| | - Matthias Wuttke
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany,Department of Medicine IV: Nephrology and Primary Care, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
| | - Pascal Schlosser
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
| | - Johanna Mielke
- Division of Pharmaceuticals, Open Innovation and Digital Technologies, Bayer AG, Wuppertal, Germany
| | - Michael S. Becker
- Division of Pharmaceuticals, Cardiovascular Research, Bayer AG, Wuppertal, Germany
| | - Peter J. Oefner
- Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | | | | | - Kai-Uwe Eckardt
- Department of Nephrology and Medical Intensive Care, Charité – Berlin University of Medicine, Berlin, Germany,Department of Nephrology and Hypertension, University Hospital Erlangen, Friedrich–Alexander University Erlangen–Nürnberg, Erlangen, Germany
| | - Peggy Sekula
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
| | - Anna Köttgen
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center – University of Freiburg, Freiburg, Germany
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6
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Jamshidi N, Xu X, von Löhneysen K, Soldau K, Mohney RP, Karoly ED, Scott M, Friedman JS. Metabolome Changes during In Vivo Red Cell Aging Reveal Disruption of Key Metabolic Pathways. iScience 2020; 23:101630. [PMID: 33103072 PMCID: PMC7575880 DOI: 10.1016/j.isci.2020.101630] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/04/2020] [Accepted: 09/25/2020] [Indexed: 12/31/2022] Open
Abstract
Understanding the mechanisms for cellular aging is a fundamental question in biology. Normal red blood cells (RBCs) survive for approximately 100 days, and their survival is likely limited by functional decline secondary to cumulative damage to cell constituents, which may be reflected in altered metabolic capabilities. To investigate metabolic changes during in vivo RBC aging, labeled cell populations were purified at intervals and assessed for abundance of metabolic intermediates using mass spectrometry. A total of 167 metabolites were profiled and quantified from cell populations of defined ages. Older RBCs maintained ATP and redox charge states at the cost of altered activity of enzymatic pathways. Time-dependent changes were identified in metabolites related to maintenance of the redox state and membrane structure. These findings illuminate the differential metabolic pathway usage associated with normal cellular aging and identify potential biomarkers to determine average RBC age and rates of RBC turnover from a single blood sample. Altered glycolytic, amino acid, and fatty acid metabolism occurs in normal RBC aging GSH pools are maintained in spite of age-dependent shifts in enzyme synthesis Changes in choline and GPC suggest alterations in membrane lipid metabolism Ophthalmate, GPC, and ergothioneine are candidate metabolic clocks for RBC aging
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Affiliation(s)
- Neema Jamshidi
- University of California, San Diego, Institute of Engineering in Medicine, La Jolla, CA, USA.,University of California, Los Angeles, Department of Radiological Sciences, Los Angeles, CA, USA
| | - Xiuling Xu
- The Scripps Research Institute, Department of Molecular and Experimental Medicine, La Jolla, CA, USA
| | | | - Katrin Soldau
- University of California, San Diego, Department of Pathology, La Jolla, CA, USA
| | | | | | - Mike Scott
- San Diego Mesa College, Chemistry Department, San Diego, CA, USA
| | - Jeffrey S Friedman
- Friedman Bioventure, Inc, San Diego, CA, USA.,DTx Pharma, Inc, San Diego, CA, USA
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7
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Labbé DP, Zadra G, Yang M, Reyes JM, Lin CY, Cacciatore S, Ebot EM, Creech AL, Giunchi F, Fiorentino M, Elfandy H, Syamala S, Karoly ED, Alshalalfa M, Erho N, Ross A, Schaeffer EM, Gibb EA, Takhar M, Den RB, Lehrer J, Karnes RJ, Freedland SJ, Davicioni E, Spratt DE, Ellis L, Jaffe JD, DʼAmico AV, Kantoff PW, Bradner JE, Mucci LA, Chavarro JE, Loda M, Brown M. High-fat diet fuels prostate cancer progression by rewiring the metabolome and amplifying the MYC program. Nat Commun 2019; 10:4358. [PMID: 31554818 PMCID: PMC6761092 DOI: 10.1038/s41467-019-12298-z] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 08/23/2019] [Indexed: 12/16/2022] Open
Abstract
Systemic metabolic alterations associated with increased consumption of saturated fat and obesity are linked with increased risk of prostate cancer progression and mortality, but the molecular underpinnings of this association are poorly understood. Here, we demonstrate in a murine prostate cancer model, that high-fat diet (HFD) enhances the MYC transcriptional program through metabolic alterations that favour histone H4K20 hypomethylation at the promoter regions of MYC regulated genes, leading to increased cellular proliferation and tumour burden. Saturated fat intake (SFI) is also associated with an enhanced MYC transcriptional signature in prostate cancer patients. The SFI-induced MYC signature independently predicts prostate cancer progression and death. Finally, switching from a high-fat to a low-fat diet, attenuates the MYC transcriptional program in mice. Our findings suggest that in primary prostate cancer, dietary SFI contributes to tumour progression by mimicking MYC over expression, setting the stage for therapeutic approaches involving changes to the diet.
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Affiliation(s)
- David P Labbé
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
- Division of Urology, Department of Surgery, McGill University and Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | - Giorgia Zadra
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Meng Yang
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Jaime M Reyes
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Charles Y Lin
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Stefano Cacciatore
- Cancer Genomics Group, International Centre for Genetic Engineering and Biotechnology, Cape Town, South Africa
| | - Ericka M Ebot
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Amanda L Creech
- The Broad Institute of MIT and Harvard University, Cambridge, MA, USA
| | - Francesca Giunchi
- Pathology Service, Addarii Institute of Oncology, S-Orsola-Malpighi Hospital, Bologna, IT, Italy
| | - Michelangelo Fiorentino
- Pathology Service, Addarii Institute of Oncology, S-Orsola-Malpighi Hospital, Bologna, IT, Italy
| | - Habiba Elfandy
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sudeepa Syamala
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | | | | | - Ashley Ross
- James Buchanan Brady Urological Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | | | | | | | - Robert B Den
- Department of Radiation Oncology, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA
| | | | - R Jeffrey Karnes
- Department of Urology, Mayo Clinic Rochester, Rochester, MN, USA
| | - Stephen J Freedland
- Department of Surgery, Division of Urology, Center for Integrated Research on Cancer and Lifestyle, Samuel Oschin Comprehensive Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Surgery Section, Durham Veteran Affairs Medical Center, Durham, NC, USA
| | | | - Daniel E Spratt
- Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA
| | - Leigh Ellis
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
- The Broad Institute of MIT and Harvard University, Cambridge, MA, USA
| | - Jacob D Jaffe
- The Broad Institute of MIT and Harvard University, Cambridge, MA, USA
| | - Anthony V DʼAmico
- Department of Radiation Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Philip W Kantoff
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Lorelei A Mucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jorge E Chavarro
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Massimo Loda
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA.
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA.
- The Broad Institute of MIT and Harvard University, Cambridge, MA, USA.
- Department of Pathology and Laboratory Medicine, Weil Cornell Medicine, New York Presbyterian-Weill Cornell Campus, New York, NY, USA.
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.
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8
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Abstract
Ozone is an asthma trigger. In mice, the gut microbiome contributes to ozone-induced airway hyperresponsiveness, a defining feature of asthma, but the mechanistic basis for the role of the gut microbiome has not been established. Gut bacteria can affect the function of distal organs by generating metabolites that enter the blood and circulate systemically. We hypothesized that global metabolomic profiling of serum collected from ozone exposed mice could be used to identify metabolites contributing to the role of the microbiome in ozone-induced airway hyperresponsiveness. Mice were treated for two weeks with a cocktail of antibiotics (ampicillin, neomycin, metronidazole, and vancomycin) in the drinking water or with control water and then exposed to air or ozone (2 ppm for 3 hours). Twenty four hours later, blood was harvested and serum analyzed via liquid-chromatography or gas-chromatography coupled to mass spectrometry. Antibiotic treatment significantly affected 228 of the 562 biochemicals identified, including reductions in the known bacterially-derived metabolites, equol, indole propionate, 3-indoxyl sulfate, and 3-(4-hydroxyphenyl)propionate, confirming the efficacy of the antibiotic treatment. Ozone exposure caused significant changes in 334 metabolites. Importantly, ozone-induced changes in many of these metabolites were different in control and antibiotic-treated mice. For example, most medium and long chain fatty acids declined by 20-50% with ozone exposure in antibiotic-treated but not control mice. Most taurine-conjugated bile acids increased with ozone exposure in antibiotic-treated but not control mice. Ozone also caused marked (9-fold and 5-fold) increases in the polyamines, spermine and spermidine, respectively, in control but not antibiotic-treated mice. Each of these metabolites has the capacity to alter airway responsiveness and may account for the role of the microbiome in pulmonary responses to ozone.
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Affiliation(s)
- Youngji Cho
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Ross S. Osgood
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Lauren N. Bell
- Metabolon Inc., Durham, North Carolina, United States of America
| | - Edward D. Karoly
- Metabolon Inc., Durham, North Carolina, United States of America
| | - Stephanie A. Shore
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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9
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Cheng W, Duncan KE, Ghio AJ, Ward-Caviness C, Karoly ED, Diaz-Sanchez D, Conolly RB, Devlin RB. Changes in Metabolites Present in Lung-Lining Fluid Following Exposure of Humans to Ozone. Toxicol Sci 2018; 163:430-439. [PMID: 29471466 PMCID: PMC6348881 DOI: 10.1093/toxsci/kfy043] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Controlled human exposure to the oxidant air pollutant ozone causes decrements in lung function and increased inflammation as evidenced by neutrophil influx into the lung and increased levels of proinflammatory cytokines in the airways. Here we describe a targeted metabolomics evaluation of human bronchoalveolar lavage fluid (BALF) following controlled in vivo exposure to ozone to gain greater insight into its pulmonary effects. In a 2-arm cross-over study, each healthy adult human volunteer was randomly exposed to filtered air (FA) and to 0.3 ppm ozone for 2 h while undergoing intermittent exercise with a minimum of 4 weeks between exposures. Bronchoscopy was performed and BALF obtained at 1 (n = 9) or 24 (n = 23) h postexposure. Metabolites were detected using ultrahigh performance liquid chromatography-tandem mass spectroscopy. At 1-h postexposure, a total of 28 metabolites were differentially expressed (DE) (p < .05) following ozone exposure compared with FA-exposure. These changes were associated with increased glycolysis and antioxidant responses, suggesting rapid increased energy utilization as part of the cellular response to oxidative stress. At 24-h postexposure, 41 metabolites were DE. Many of the changes were in amino acids and linked with enhanced proteolysis. Changes associated with increased lipid membrane turnover were also observed. These later-stage changes were consistent with ongoing repair of airway tissues. There were 1.37 times as many metabolites were differentially expressed at 24 h compared with 1-h postexposure. The changes at 1 h reflect responses to oxidative stress while the changes at 24 h indicate a broader set of responses consistent with tissue repair. These results illustrate the ability of metabolomic analysis to identify mechanistic features of ozone toxicity and aspects of the subsequent tissue response.
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Affiliation(s)
- WanYun Cheng
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
| | - Kelly E Duncan
- School of Medicine, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina 27599
| | - Andrew J Ghio
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
| | - Cavin Ward-Caviness
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
| | | | - David Diaz-Sanchez
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
| | - Rory B Conolly
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
| | - Robert B Devlin
- National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 2799
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10
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Huang J, Mondul AM, Weinstein SJ, Karoly ED, Sampson JN, Albanes D. Prospective serum metabolomic profile of prostate cancer by size and extent of primary tumor. Oncotarget 2018; 8:45190-45199. [PMID: 28423352 PMCID: PMC5542177 DOI: 10.18632/oncotarget.16775] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/21/2017] [Indexed: 12/14/2022] Open
Abstract
Two recent investigations found serum lipid and energy metabolites related to aggressive prostate cancer up to 20 years prior to diagnosis. To elucidate whether those metabolomic profiles represent etiologic or tumor biomarker signals, we prospectively examined serum metabolites of prostate cancer cases by size and extent of primary tumors in a nested case-control analysis in the ATBC Study cohort that compared cases diagnosed with T2 (n = 71), T3 (n = 51), or T4 (n = 15) disease to controls (n = 200). Time from fasting serum collection to diagnosis averaged 10 years (range 1-20). LC/MS-GC/MS identified 625 known compounds, and logistic regression estimated odds ratios (ORs) associated with one-standard deviation differences in log-metabolites. N-acetyl-3-methylhistidine, 3-methylhistidine and 2'-deoxyuridine were elevated in men with T2 cancers compared to controls (ORs = 1.38-1.79; 0.0002 ≤ p ≤ 0.01). By contrast, four lipid metabolites were inversely associated with T3 tumors: oleoyl-linoleoyl-glycerophosphoinositol (GPI), palmitoyl-linoleoyl-GPI, cholate, and inositol 1-phosphate (ORs = 0.49-0.60; 0.000017 ≤ p ≤ 0.003). Secondary bile acid lipids, sex steroids and caffeine-related xanthine metabolites were elevated, while two Krebs cycle metabolites were decreased, in men diagnosed with T4 cancers. Men with T2, T3, and T4 prostate cancer primaries exhibit qualitatively different metabolite profiles years in advance of diagnosis that may represent etiologic factors, molecular patterns reflective of distinct primary tumors, or a combination of both.
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Affiliation(s)
- Jiaqi Huang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Alison M Mondul
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | | | - Joshua N Sampson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
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11
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Waitkus MS, Pirozzi CJ, Moure CJ, Diplas BH, Hansen LJ, Carpenter AB, Yang R, Wang Z, Ingram BO, Karoly ED, Mohney RP, Spasojevic I, McLendon RE, Friedman HS, He Y, Bigner DD, Yan H. Adaptive Evolution of the GDH2 Allosteric Domain Promotes Gliomagenesis by Resolving IDH1 R132H-Induced Metabolic Liabilities. Cancer Res 2017; 78:36-50. [PMID: 29097607 DOI: 10.1158/0008-5472.can-17-1352] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/25/2017] [Accepted: 10/27/2017] [Indexed: 01/13/2023]
Abstract
Hotspot mutations in the isocitrate dehydrogenase 1 (IDH1) gene occur in a number of human cancers and confer a neomorphic enzyme activity that catalyzes the conversion of α-ketoglutarate (αKG) to the oncometabolite D-(2)-hydroxyglutarate (D2HG). In malignant gliomas, IDH1R132H expression induces widespread metabolic reprogramming, possibly requiring compensatory mechanisms to sustain the normal biosynthetic requirements of actively proliferating tumor cells. We used genetically engineered mouse models of glioma and quantitative metabolomics to investigate IDH1R132H-dependent metabolic reprogramming and its potential to induce biosynthetic liabilities that can be exploited for glioma therapy. In gliomagenic neural progenitor cells, IDH1R132H expression increased the abundance of dipeptide metabolites, depleted key tricarboxylic acid cycle metabolites, and slowed progression of murine gliomas. Notably, expression of glutamate dehydrogenase GDH2, a hominoid-specific enzyme with relatively restricted expression to the brain, was critically involved in compensating for IDH1R132H-induced metabolic alterations and promoting IDH1R132H glioma growth. Indeed, we found that recently evolved amino acid substitutions in the GDH2 allosteric domain conferred its nonredundant, glioma-promoting properties in the presence of IDH1 mutation. Our results indicate that among the unique roles for GDH2 in the human forebrain is its ability to limit IDH1R132H-mediated metabolic liabilities, thus promoting glioma growth in this context. Results from this study raise the possibility that GDH2-specific inhibition may be a viable therapeutic strategy for gliomas with IDH mutations.Significance: These findings show that the homonid-specific brain enzyme GDH2 may be essential to mitigate metabolic liabilities created by IDH1 mutations in glioma, with possible implications to leverage its therapeutic management by IDH1 inhibitors. Cancer Res; 78(1); 36-50. ©2017 AACR.
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Affiliation(s)
- Matthew S Waitkus
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Christopher J Pirozzi
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Casey J Moure
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Bill H Diplas
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Landon J Hansen
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Austin B Carpenter
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Rui Yang
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Zhaohui Wang
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | | | | | | | - Ivan Spasojevic
- Department of Medicine - Oncology, Duke University School of Medicine, Durham, North Carolina.,Pharmacokinetics/Pharmacodynamics Core Laboratory, Duke Cancer Institute, Durham, North Carolina
| | - Roger E McLendon
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Henry S Friedman
- Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina.,Department of Neurosurgery, Duke University Medical Center, Durham, North Carolina
| | - Yiping He
- Department of Pathology, Duke University, Durham, North Carolina.,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
| | - Darell D Bigner
- Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina.,Department of Neurosurgery, Duke University Medical Center, Durham, North Carolina
| | - Hai Yan
- Department of Pathology, Duke University, Durham, North Carolina. .,Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina
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12
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Huang J, Weinstein SJ, Kitahara CM, Karoly ED, Sampson JN, Albanes D. A prospective study of serum metabolites and glioma risk. Oncotarget 2017; 8:70366-70377. [PMID: 29050286 PMCID: PMC5642561 DOI: 10.18632/oncotarget.19705] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 06/29/2017] [Indexed: 12/30/2022] Open
Abstract
Malignant glioma is one of the most lethal adult cancers, yet its etiology remains largely unknown. We conducted a prospective serum metabolomic analysis of glioma based on 64 cases and 64 matched controls selected from Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. Median time from collection of baseline fasting serum to diagnosis was nine years (inter-decile range 3-20 years). LC/MS-MS identified 730 known metabolites, and conditional logistic regression models estimated odds ratios for one-standard deviation differences in log-metabolite signals. Forty-three metabolites were associated with glioma at P<0.05. 2-Oxoarginine, cysteine, alpha-ketoglutarate, chenodeoxycholate and argininate yielded the strongest metabolite signals and were inversely related to overall glioma risk (0.0065≤P<0.0083). Also, seven xanthine metabolites related to caffeine metabolism were higher in cases than in controls (0.017≤P<0.042). Findings were mostly similar in high-grade glioma cases, although prominent inversely associated metabolites included the secondary bile acids glycocholenate sulfate and 3β-hydroxy-5-cholenoic acid, xenobiotic methyl 4-hydroxybenzoate sulfate, sex steroid 5alpha-pregnan-3beta, 20beta-diol-monosulfate, and cofactor/vitamin oxalate (0.0091≤P<0.021). A serum metabolomic profile of glioma identified years in advance of clinical diagnoses is characterized by altered signals in arginine/proline, antioxidant, and coffee-related metabolites. The observed pattern provides new potential leads regarding the molecular basis relevant to etiologic or sub-clinical biomarkers for glioma.
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Affiliation(s)
- Jiaqi Huang
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Stephanie J Weinstein
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Cari M Kitahara
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Edward D Karoly
- Director of Project Management, Metabolon, Inc., Morrisville, NC, USA
| | - Joshua N Sampson
- Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
| | - Demetrius Albanes
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
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13
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Mathews JA, Kasahara DI, Cho Y, Bell LN, Gunst PR, Karoly ED, Shore SA. Effect of acute ozone exposure on the lung metabolomes of obese and lean mice. PLoS One 2017; 12:e0181017. [PMID: 28704544 PMCID: PMC5509247 DOI: 10.1371/journal.pone.0181017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/23/2017] [Indexed: 12/27/2022] Open
Abstract
Pulmonary responses to the air pollutant, ozone, are increased in obesity. Both obesity and ozone cause changes in systemic metabolism. Consequently, we examined the impact of ozone on the lung metabolomes of obese and lean mice. Lean wildtype and obese db/db mice were exposed to acute ozone (2 ppm for 3 h) or air. 24 hours later, the lungs were excised, flushed with PBS to remove blood and analyzed via liquid-chromatography or gas-chromatography coupled to mass spectrometry for metabolites. Both obesity and ozone caused changes in the lung metabolome. Of 321 compounds identified, 101 were significantly impacted by obesity in air-exposed mice. These included biochemicals related to carbohydrate and lipid metabolism, which were each increased in lungs of obese versus lean mice. These metabolite changes may be of functional importance given the signaling capacity of these moieties. Ozone differentially affected the lung metabolome in obese versus lean mice. For example, almost all phosphocholine-containing lysolipids were significantly reduced in lean mice, but this effect was attenuated in obese mice. Glutathione metabolism was also differentially affected by ozone in obese and lean mice. Finally, the lung metabolome indicated a role for the microbiome in the effects of both obesity and ozone: all measured bacterial/mammalian co-metabolites were significantly affected by obesity and/or ozone. Thus, metabolic derangements in obesity appear to impact the response to ozone.
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Affiliation(s)
- Joel Andrew Mathews
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - David Itiro Kasahara
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Youngji Cho
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Lauren Nicole Bell
- Metabolon Incorporated, Research Triangle Park, North Carolina, United States of America
| | - Philip Ross Gunst
- Metabolon Incorporated, Research Triangle Park, North Carolina, United States of America
| | - Edward D. Karoly
- Metabolon Incorporated, Research Triangle Park, North Carolina, United States of America
| | - Stephanie Ann Shore
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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14
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Miller DB, Ghio AJ, Karoly ED, Bell LN, Snow SJ, Madden MC, Soukup J, Cascio WE, Gilmour MI, Kodavanti UP. Ozone Exposure Increases Circulating Stress Hormones and Lipid Metabolites in Humans. Am J Respir Crit Care Med 2017; 193:1382-91. [PMID: 26745856 DOI: 10.1164/rccm.201508-1599oc] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
RATIONALE Air pollution has been associated with increased prevalence of type 2 diabetes; however, the mechanisms remain unknown. We have shown that acute ozone exposure in rats induces release of stress hormones, hyperglycemia, leptinemia, and glucose intolerance that are associated with global changes in peripheral glucose, lipid, and amino acid metabolism. OBJECTIVES To examine ozone-induced metabolic derangement in humans using serum metabolomic assessment, establish human-to-rodent coherence, and identify novel nonprotein biomarkers. METHODS Serum samples were obtained from a crossover clinical study that included two clinic visits (n = 24 each) where each subject was blindly exposed in the morning to either filtered air or 0.3 parts per million ozone for 2 hours during 15-minute on-off exercise. Serum samples collected within 1 hour after exposure were assessed for changes in metabolites using a metabolomic approach. MEASUREMENTS AND MAIN RESULTS Metabolomic analysis revealed that ozone exposure markedly increased serum cortisol and corticosterone together with increases in monoacylglycerol, glycerol, and medium- and long-chain free fatty acids, reflective of lipid mobilization and catabolism. Additionally, ozone exposure increased serum lysolipids, potentially originating from membrane lipid breakdown. Ozone exposure also increased circulating mitochondrial β-oxidation-derived metabolites, such as acylcarnitines, together with increases in the ketone body 3-hydroxybutyrate. These changes suggested saturation of β-oxidation by ozone in exercising humans. CONCLUSIONS As in rodents, acute ozone exposure increased stress hormones and globally altered peripheral lipid metabolism in humans, likely through activation of a neurohormonally mediated stress response pathway. The metabolomic assessment revealed new biomarkers and allowed for establishment of rodent-to-human coherence. Clinical trial registered with www.clinicaltrials.gov (NCT 01492517).
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Affiliation(s)
- Desinia B Miller
- 1 Curriculum in Toxicology, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina
| | - Andrew J Ghio
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | | | | | - Samantha J Snow
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | - Michael C Madden
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | - Joleen Soukup
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | - Wayne E Cascio
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | - M Ian Gilmour
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
| | - Urmila P Kodavanti
- 2 Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina; and
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15
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James EL, Lane JAE, Michalek RD, Karoly ED, Parkinson EK. Replicatively senescent human fibroblasts reveal a distinct intracellular metabolic profile with alterations in NAD+ and nicotinamide metabolism. Sci Rep 2016; 6:38489. [PMID: 27924925 PMCID: PMC5141431 DOI: 10.1038/srep38489] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 11/11/2016] [Indexed: 12/30/2022] Open
Abstract
Cellular senescence occurs by proliferative exhaustion (PEsen) or following multiple cellular stresses but had not previously been subject to detailed metabolomic analysis. Therefore, we compared PEsen fibroblasts with proliferating and transiently growth arrested controls using a combination of different mass spectroscopy techniques. PEsen cells showed many specific alterations in both the NAD+ de novo and salvage pathways including striking accumulations of nicotinamide mononucleotide (NMN) and nicotinamide riboside (NR) in the amidated salvage pathway despite no increase in nicotinamide phosphoribosyl transferase or in the NR transport protein, CD73. Extracellular nicotinate was depleted and metabolites of the deamidated salvage pathway were reduced but intracellular NAD+ and nicotinamide were nevertheless maintained. However, sirtuin 1 was downregulated and so the accumulation of NMN and NR was best explained by reduced flux through the amidated arm of the NAD+ salvage pathway due to reduced sirtuin activity. PEsen cells also showed evidence of increased redox homeostasis and upregulated pathways used to generate energy and cellular membranes; these included nucleotide catabolism, membrane lipid breakdown and increased creatine metabolism. Thus PEsen cells upregulate several different pathways to sustain their survival which may serve as pharmacological targets for the elimination of senescent cells in age-related disease.
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Affiliation(s)
- Emma L James
- Centre for Clinical &Diagnostic Oral Sciences, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK
| | - James A E Lane
- Centre for Clinical &Diagnostic Oral Sciences, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK
| | - Ryan D Michalek
- Metabolon, Inc. 617 Davis Drive, Suite 400, Durham, NC, 27713, USA
| | - Edward D Karoly
- Metabolon, Inc. 617 Davis Drive, Suite 400, Durham, NC, 27713, USA
| | - E Kenneth Parkinson
- Centre for Clinical &Diagnostic Oral Sciences, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London, E1 2AD, UK
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16
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Montrose DC, Zhou XK, McNally EM, Sue E, Yantiss RK, Gross SS, Leve ND, Karoly ED, Suen CS, Ling L, Benezra R, Pamer EG, Dannenberg AJ. Celecoxib Alters the Intestinal Microbiota and Metabolome in Association with Reducing Polyp Burden. Cancer Prev Res (Phila) 2016; 9:721-31. [PMID: 27432344 PMCID: PMC5010963 DOI: 10.1158/1940-6207.capr-16-0095] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/12/2016] [Indexed: 12/14/2022]
Abstract
Treatment with celecoxib, a selective COX-2 inhibitor, reduces formation of premalignant adenomatous polyps in the gastrointestinal tracts of humans and mice. In addition to its chemopreventive activity, celecoxib can exhibit antimicrobial activity. Differing bacterial profiles have been found in feces from colon cancer patients compared with those of normal subjects. Moreover, preclinical studies suggest that bacteria can modulate intestinal tumorigenesis by secreting specific metabolites. In the current study, we determined whether celecoxib treatment altered the luminal microbiota and metabolome in association with reducing intestinal polyp burden in mice. Administration of celecoxib for 10 weeks markedly reduced intestinal polyp burden in APC(Min/+) mice. Treatment with celecoxib also altered select luminal bacterial populations in both APC(Min/+) and wild-type mice, including decreased Lactobacillaceae and Bifidobacteriaceae as well as increased Coriobacteriaceae Metabolomic analysis demonstrated that celecoxib caused a strong reduction in many fecal metabolites linked to carcinogenesis, including glucose, amino acids, nucleotides, and lipids. Ingenuity Pathway Analysis suggested that these changes in metabolites may contribute to reduced cell proliferation. To this end, we showed that celecoxib reduced cell proliferation in the base of normal appearing ileal and colonic crypts of APC(Min/+) mice. Consistent with this finding, lineage tracing indicated that celecoxib treatment reduced the rate at which Lgr5-positive stem cells gave rise to differentiated cell types in the crypts. Taken together, these results demonstrate that celecoxib alters the luminal microbiota and metabolome along with reducing epithelial cell proliferation in mice. We hypothesize that these actions contribute to its chemopreventive activity. Cancer Prev Res; 9(9); 721-31. ©2016 AACR.
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Affiliation(s)
- David C Montrose
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Xi Kathy Zhou
- Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, New York
| | - Erin M McNally
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Erika Sue
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Rhonda K Yantiss
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York
| | - Steven S Gross
- Department of Pharmacology, Weill Cornell Medical College, New York, New York
| | - Nitai D Leve
- Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, New York
| | | | - Chen S Suen
- Division of Cancer Prevention, National Cancer Institute, Rockville, Maryland
| | - Lilan Ling
- Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Robert Benezra
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Eric G Pamer
- Lucille Castori Center for Microbes, Inflammation and Cancer, Memorial Sloan Kettering Cancer Center, New York, New York. Immunology Program, Memorial Sloan Kettering Cancer Center, New York, New York. Infectious Diseases Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
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17
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Thompson MD, Grubbs CJ, Steele VE, Miller MS, Moeinpour F, Karoly ED, Lubet RA. Abstract 2626: Metabolic profiles and potential pharmacodynamic biomarkers in female Sprague-Dawley rats on a standard (4% fat) or Western (20% fat) diet and treated with known active or inactive chemopreventive agents. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-2626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The methylnitrosourea (MNU) - induced model of ER+ mammary cancers in female Sprague-Dawley rats has been routinely used in our laboratories for screening chemopreventive agents. In this study, we evaluated multiple known effective [tamoxifen, Targretin (an RXR agonist), Iressa (EGFR1 inhibitor)] or ineffective agents (Lipitor, metformin) in rats placed on either standard diet (20% fat) or a Western diet (20% fat, low calcium) at 43 days of age (DOA). Rats were given MNU at 50 DOA and administered the various agents or vehicle beginning at 57 DOA until the end of the study. Palpation of the rats showed that agents yielded the same results in rats on either diets. Somewhat surprisingly, metformin was ineffective in rats on either diet; confirming our lack of efficacy in a standard diet (Thompson, et al, Cancer Prev Res., 2015). To look for potential pharmacodynamics biomarkers, serum was obtained from the various groups at 78 days of age and at sacrifice; when a large tumor burden was observed in rats given vehicle, Lipitor, or metformin. Levels of approximately 500 metabolites were compared in the serum (Metabolon Research, Research Triangle Park, NC). We initially looked for metabolite changes related to different diets and found differential expression of alpha 10-undecanoate, 13-methylmyristic acid, 4-hydrox-benzoate, 2-amino-heptanpate, tocopherol and nicotinamide when comparing serum from rats on Western vs standard diets. Interestingly, each of the highly effective agents (tamoxifen, Targretin, and Iressa) yielded metabolic profiles that were strikingly different from rats given vehicle; based on unsupervised analysis. These metabolites become potential pharmacodynamic biomarkers for the highly effective doses of these agents. In contrast, the two negative agents did not yield a similar dichotomy between treated and vehicle serum. One could determine, however, metabolites which differed between metformin or Lipitor treated rats vs vehicle treated rats when performing a supervised analysis. We also compared serum for the early and late time points with either diet since the latter serum was from animals with a significant number of mammary cancers. We observed a number of metabolite changes including 4-OH butyrate, acetyl carnitine, oxalate, and threonate. These cancer related profiles will be discussed at greater length; in addition to the altered profiles caused by the administration of the various chemopreventive agents. Supported by NCI contract HHSN261201200021I.
Citation Format: Matthew D. Thompson, Clinton J. Grubbs, Vernon E. Steele, Mark S. Miller, Fariba Moeinpour, Edward D. Karoly, Ronald A. Lubet. Metabolic profiles and potential pharmacodynamic biomarkers in female Sprague-Dawley rats on a standard (4% fat) or Western (20% fat) diet and treated with known active or inactive chemopreventive agents. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 2626.
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Montrose DC, Zhou XK, McNally EM, Sue E, Gross SS, Leve ND, Karoly ED, Ling L, Pamer EG, Dannenberg AJ. Abstract LB-302: Celecoxib alters the intestinal microbiota and metabolome in association with reducing polyp burden. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-lb-302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Celecoxib is a chemopreventive agent that reduces adenomatous polyp number in the gastrointestinal tract of humans and mice and is thought to exert its effects exclusively through inhibition of COX-2. Bacteria have been shown to impact upon intestinal tumorigenesis in part by secretion of key metabolites. However, it is unknown whether celecoxib may be reducing polyp burden at least in part, through effects on the luminal microbiota or metabolome. This study tested whether celecoxib can alter the luminal microbiota and metabolome in association with reducing intestinal polyps in APCMin/+ mice, potentially providing a novel mechanism by which it exerts its chemopreventive effects. Methods: APCMin/+ and wild-type (WT) mice were co-housed for 2 weeks to normalize their microbiota, then individually housed and administered control or celecoxib-containing diet from 6 to 16 weeks of age. Feces were collected at 6, 11 and 16 weeks of age and ileal content and intestinal tissue (to quantify polyp burden) were collected at 16 weeks. Bacterial composition analysis on ileal content and feces was carried out using 16S rDNA sequencing and relative fecal metabolite levels were measured using UPLC/MS/MS and GC/MS. Results: As expected, administration of celecoxib for 10 weeks markedly reduced intestinal polyp burden in APCMin/+ mice. Concomitant with this effect, drug administration altered the luminal bacterial populations, a shift that also occurred in WT mice. These changes included increased Coriobacteriaceae and decreased Lactobacillaceae and Bifidobacteriaceae. Subsequent metabolomic analysis demonstrated that celecoxib caused a strong reduction in many fecal metabolites including glucose, amino acids, nucleotides and lipids. Ingenuity Pathway Analysis revealed that this change in metabolomic profile was associated with pathway perturbations that could contribute to reduced cell proliferation. Lastly, we showed that the observed changes were associated with a reduction in stem cell proliferation in normal intestinal crypts of APCMin/+ mice. Conclusions: These results demonstrate that celecoxib treatment profoundly altered the luminal microbiota and metabolome of mice and we hypothesize that these actions contribute to its chemopreventive activity. Further studies are warranted to confirm this hypothesis and assess whether our findings extend to humans and to other nonsteroidal anti-inflammatory drugs.
Citation Format: David C. Montrose, Xi K. Zhou, Erin M. McNally, Erika Sue, Steven S. Gross, Nitai D. Leve, Edward D. Karoly, Lilan Ling, Eric G. Pamer, Andrew J. Dannenberg. Celecoxib alters the intestinal microbiota and metabolome in association with reducing polyp burden. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr LB-302.
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Affiliation(s)
| | | | | | - Erika Sue
- 1Weill Cornell Medicine, New York, NY
| | | | | | | | - Lilan Ling
- 3Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Eric G. Pamer
- 3Memorial Sloan-Kettering Cancer Center, New York, NY
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Perera TH, Young MR, Saud SM, Dextras CR, Jones-Hall YL, Karoly ED, Sampey BP, Kim YS, Colburn NH, Bobe G. Abstract A54: Changes in fatty acid profile indicate a chemo-preventive response to navy bean extract in an inflammation-associated colorectal cancer mouse model. Mol Cancer Res 2016. [DOI: 10.1158/1557-3125.metca15-a54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Consumption of dry beans and their fractions decrease colorectal neoplasia; however, the underlying molecular mechanisms are unclear. Aim of the study was to identify response indicators of dietary attenuation of colorectal tumorigenesis using metabolic profiling.
Methods: The study had a 2 x 2 factorial design. After being either induced or not with azoxymethane/dextran sodium sulfate (AOM/DSS), male FVB/N mice were fed an AIN93G diet containing either 0 (Control) or 10% navy bean ethanol extract (BE) for 6 weeks. Colon tissue was collected and analyzed for colitis, aberrant cell proliferation, and tumor, whereas serum, feed, and fecal samples were analyzed for metabolite levels.
Results: Dietary BE attenuated AOM/DSS-induced chronic colitis, aberrant epithelial cell proliferation, fecal blood (heme), and tumorigenesis (-40%; P=0.02) in the colon. Similar changes were observed for fecal medium-chain fatty acids (hexanoate, octonoate) and plant phenolics (vanillate) and serum markers of fatty acid oxidation (carnitine, hexanoylcarnitine), and the pentose phosphate pathway (sedophetulose-7-phosphate). Moreover, dietary BE increased fecal markers of apoptosis (ribose, uracil, pseudouridine, xanthine, hypoxanthine) and attenuated the AOM/DSS-induced decrease in serum glycerophosphocholine.
Conclusions: Dietary BE may inhibit survival and proliferation of premalignant colorectal epithelial cells by promoting fatty acid oxidation and resolving inflammation.
Citation Format: Thushanthi H. Perera, Matthew R, Young, Shakir M. Saud, Christopher R. Dextras, Yava L. Jones-Hall, Edward D. Karoly, Brante P. Sampey, Young S. Kim, Nancy H. Colburn, Gerd Bobe. Changes in fatty acid profile indicate a chemo-preventive response to navy bean extract in an inflammation-associated colorectal cancer mouse model. [abstract]. In: Proceedings of the AACR Special Conference: Metabolism and Cancer; Jun 7-10, 2015; Bellevue, WA. Philadelphia (PA): AACR; Mol Cancer Res 2016;14(1_Suppl):Abstract nr A54.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Gerd Bobe
- 1Oregon State University, Corvallis, OR,
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Diboun I, Mathew S, Al-Rayyashi M, Elrayess M, Torres M, Halama A, Méret M, Mohney RP, Karoly ED, Malek J, Suhre K. Metabolomics of dates (Phoenix dactylifera) reveals a highly dynamic ripening process accounting for major variation in fruit composition. BMC Plant Biol 2015; 15:291. [PMID: 26674306 PMCID: PMC4681049 DOI: 10.1186/s12870-015-0672-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 12/03/2015] [Indexed: 05/07/2023]
Abstract
BACKGROUND Dates are tropical fruits with appreciable nutritional value. Previous attempts at global metabolic characterization of the date metabolome were constrained by small sample size and limited geographical sampling. In this study, two independent large cohorts of mature dates exhibiting substantial diversity in origin, varieties and fruit processing conditions were measured by metabolomics techniques in order to identify major determinants of the fruit metabolome. RESULTS Multivariate analysis revealed a first principal component (PC1) significantly associated with the dates' countries of production. The availability of a smaller dataset featuring immature dates from different development stages served to build a model of the ripening process in dates, which helped reveal a strong ripening signature in PC1. Analysis revealed enrichment in the dry type of dates amongst fruits with early ripening profiles at one end of PC1 as oppose to an overrepresentation of the soft type of dates with late ripening profiles at the other end of PC1. Dry dates are typical to the North African region whilst soft dates are more popular in the Gulf region, which partly explains the observed association between PC1 and geography. Analysis of the loading values, expressing metabolite correlation levels with PC1, revealed enrichment patterns of a comprehensive range of metabolite classes along PC1. Three distinct metabolic phases corresponding to known stages of date ripening were observed: An early phase enriched in regulatory hormones, amines and polyamines, energy production, tannins, sucrose and anti-oxidant activity, a second phase with on-going phenylpropanoid secondary metabolism, gene expression and phospholipid metabolism and a late phase with marked sugar dehydration activity and degradation reactions leading to increased volatile synthesis. CONCLUSIONS These data indicate the importance of date ripening as a main driver of variation in the date metabolome responsible for their diverse nutritional and economical values. The biochemistry of the ripening process in dates is consistent with other fruits but natural dryness may prevent degenerative senescence in dates following ripening. Based on the finding that mature dates present varying extents of ripening, our survey of the date metabolome essentially revealed snapshots of interchanging metabolic states during ripening empowering an in-depth characterization of underlying biology.
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Affiliation(s)
- Ilhame Diboun
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar Foundation - Education City, PO Box 24144, Doha, Qatar.
| | - Sweety Mathew
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar Foundation - Education City, PO Box 24144, Doha, Qatar.
| | | | | | - Maria Torres
- Genomics Laboratory, Weill Cornell Medical College, Doha, Qatar.
| | - Anna Halama
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar Foundation - Education City, PO Box 24144, Doha, Qatar.
| | | | | | | | - Joel Malek
- Genomics Laboratory, Weill Cornell Medical College, Doha, Qatar.
- Department of Genetic Medicine, Weill Cornell Medical College, Doha, Qatar.
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College, Qatar Foundation - Education City, PO Box 24144, Doha, Qatar.
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Yousri NA, Mook-Kanamori DO, El-Din Selim MM, Takiddin AH, Al-Homsi H, Al-Mahmoud KAS, Karoly ED, Krumsiek J, Do KT, Neumaier U, Mook-Kanamori MJ, Rowe J, Chidiac OM, McKeon C, Al Muftah WA, Kader SA, Kastenmüller G, Suhre K. Erratum to: A systems view of type 2 diabetes-associated metabolic perturbations in saliva, blood and urine at different timescales of glycaemic control. Diabetologia 2015; 58:2199. [PMID: 26133943 PMCID: PMC4713985 DOI: 10.1007/s00125-015-3682-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noha A. Yousri
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
- />Department of Computer and Systems Engineering, Alexandria University, Alexandria, Egypt
| | - Dennis O. Mook-Kanamori
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
- />Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
- />Department of Endocrinology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | | | - Hala Al-Homsi
- />Dermatology Department, Hamad Medical Corporation, Doha, Qatar
| | | | | | - Jan Krumsiek
- />Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Kieu Trinh Do
- />Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Ulrich Neumaier
- />Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Marjonneke J. Mook-Kanamori
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Jillian Rowe
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Omar M. Chidiac
- />Clinical Research Core, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, Doha, Qatar
| | - Cindy McKeon
- />Clinical Research Core, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, Doha, Qatar
| | - Wadha A. Al Muftah
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Sara Abdul Kader
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Gabi Kastenmüller
- />Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environment Health, Neuherberg, Germany
- />German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Karsten Suhre
- />Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
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Yousri NA, Mook-Kanamori DO, Selim MMED, Takiddin AH, Al-Homsi H, Al-Mahmoud KAS, Karoly ED, Krumsiek J, Do KT, Neumaier U, Mook-Kanamori MJ, Rowe J, Chidiac OM, McKeon C, Al Muftah WA, Kader SA, Kastenmüller G, Suhre K. A systems view of type 2 diabetes-associated metabolic perturbations in saliva, blood and urine at different timescales of glycaemic control. Diabetologia 2015; 58:1855-67. [PMID: 26049400 PMCID: PMC4499109 DOI: 10.1007/s00125-015-3636-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 04/20/2015] [Indexed: 12/21/2022]
Abstract
AIMS/HYPOTHESIS Metabolomics has opened new avenues for studying metabolic alterations in type 2 diabetes. While many urine and blood metabolites have been associated individually with diabetes, a complete systems view analysis of metabolic dysregulations across multiple biofluids and over varying timescales of glycaemic control is still lacking. METHODS Here we report a broad metabolomics study in a clinical setting, covering 2,178 metabolite measures in saliva, blood plasma and urine from 188 individuals with diabetes and 181 controls of Arab and Asian descent. Using multivariate linear regression we identified metabolites associated with diabetes and markers of acute, short-term and long-term glycaemic control. RESULTS Ninety-four metabolite associations with diabetes were identified at a Bonferroni level of significance (p < 2.3 × 10(-5)), 16 of which have never been reported. Sixty-five of these diabetes-associated metabolites were associated with at least one marker of glycaemic control in the diabetes group. Using Gaussian graphical modelling, we constructed a metabolic network that links diabetes-associated metabolites from three biofluids across three different timescales of glycaemic control. CONCLUSIONS/INTERPRETATION Our study reveals a complex network of biochemical dysregulation involving metabolites from different pathways of diabetes pathology, and provides a reference framework for future diabetes studies with metabolic endpoints.
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Affiliation(s)
- Noha A. Yousri
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
- Department of Computer and Systems Engineering, Alexandria University, Alexandria, Egypt
| | - Dennis O. Mook-Kanamori
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
- Department of Clinical Epidemiology, Leiden University Medical Centre, Leiden, the Netherlands
- Department of Endocrinology, Leiden University Medical Centre, Leiden, the Netherlands
| | | | | | - Hala Al-Homsi
- Dermatology Department, Hamad Medical Corporation, Doha, Qatar
| | | | | | - Jan Krumsiek
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Kieu Thinh Do
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Ulrich Neumaier
- Institute of Computational Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Marjonneke J. Mook-Kanamori
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Jillian Rowe
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Omar M. Chidiac
- Clinical Research Core, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, Doha, Qatar
| | - Cindy McKeon
- Clinical Research Core, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, Doha, Qatar
| | - Wadha A. Al Muftah
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Sara Abdul Kader
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environment Health, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar Foundation – Education City, PO Box 24144, Doha, Qatar
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Halama A, Guerrouahen BS, Pasquier J, Diboun I, Karoly ED, Suhre K, Rafii A. Metabolic signatures differentiate ovarian from colon cancer cell lines. J Transl Med 2015; 13:223. [PMID: 26169745 PMCID: PMC4499939 DOI: 10.1186/s12967-015-0576-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Accepted: 06/17/2015] [Indexed: 12/22/2022] Open
Abstract
Background In this era of precision medicine, the deep and comprehensive characterization of tumor phenotypes will lead to therapeutic strategies beyond classical factors such as primary sites or anatomical staging. Recently, “-omics” approached have enlightened our knowledge of tumor biology. Such approaches have been extensively implemented in order to provide biomarkers for monitoring of the disease as well as to improve readouts of therapeutic impact. The application of metabolomics to the study of cancer is especially beneficial, since it reflects the biochemical consequences of many cancer type-specific pathophysiological processes. Here, we characterize metabolic profiles of colon and ovarian cancer cell lines to provide broader insight into differentiating metabolic processes for prospective drug development and clinical screening. Methods We applied non-targeted metabolomics-based mass spectroscopy combined with ultrahigh-performance liquid chromatography and gas chromatography for the metabolic phenotyping of four cancer cell lines: two from colon cancer (HCT15, HCT116) and two from ovarian cancer (OVCAR3, SKOV3). We used the MetaP server for statistical data analysis. Results A total of 225 metabolites were detected in all four cell lines; 67 of these molecules significantly discriminated colon cancer from ovarian cancer cells. Metabolic signatures revealed in our study suggest elevated tricarboxylic acid cycle and lipid metabolism in ovarian cancer cell lines, as well as increased β-oxidation and urea cycle metabolism in colon cancer cell lines. Conclusions Our study provides a panel of distinct metabolic fingerprints between colon and ovarian cancer cell lines. These may serve as potential drug targets, and now can be evaluated further in primary cells, biofluids, and tissue samples for biomarker purposes. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0576-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anna Halama
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar.
| | - Bella S Guerrouahen
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar. .,Department of Genetic Medicine, Weill Cornell Medical College, New York, NY, 10065, USA. .,Experimental Biology Division-Research, Sidra Medical and Research Center, PO Box 26999, Doha, Qatar.
| | - Jennifer Pasquier
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar. .,Department of Genetic Medicine, Weill Cornell Medical College, New York, NY, 10065, USA.
| | - Ilhem Diboun
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar.
| | | | - Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar. .,Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.
| | - Arash Rafii
- Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Education City, Qatar Foundation, Doha, Qatar. .,Department of Genetic Medicine, Weill Cornell Medical College, New York, NY, 10065, USA. .,Department of Genetic Medicine and Obstetrics and Gynecology, Weill Cornell Medical College, Stem Cell and Microenvironment Laboratory, Weill Cornell Medical College in Qatar, Qatar-Foundation, P.O. Box 24144, Doha, Qatar.
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Chae YC, Angelin A, Lisanti S, Kossenkov AV, Speicher KD, Wang H, Powers JF, Tischler AS, Pacak K, Fliedner S, Michalek RD, Karoly ED, Wallace DC, Languino LR, Speicher DW, Altieri DC. Corrigendum: Landscape of the mitochondrial Hsp90 metabolome in tumours. Nat Commun 2015; 6:7605. [PMID: 26085380 DOI: 10.1038/ncomms8605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Suhre K, Schwartz JE, Sharma VK, Chen Q, Lee JR, Muthukumar T, Dadhania DM, Ding R, Ikle DN, Bridges ND, Williams NM, Kastenmüller G, Karoly ED, Mohney RP, Abecassis M, Friedewald J, Knechtle SJ, Becker YT, Samstein B, Shaked A, Gross SS, Suthanthiran M. Urine Metabolite Profiles Predictive of Human Kidney Allograft Status. J Am Soc Nephrol 2015; 27:626-36. [PMID: 26047788 DOI: 10.1681/asn.2015010107] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/15/2015] [Indexed: 12/29/2022] Open
Abstract
Noninvasive diagnosis and prognostication of acute cellular rejection in the kidney allograft may help realize the full benefits of kidney transplantation. To investigate whether urine metabolites predict kidney allograft status, we determined levels of 749 metabolites in 1516 urine samples from 241 kidney graft recipients enrolled in the prospective multicenter Clinical Trials in Organ Transplantation-04 study. A metabolite signature of the ratio of 3-sialyllactose to xanthosine in biopsy specimen-matched urine supernatants best discriminated acute cellular rejection biopsy specimens from specimens without rejection. For clinical application, we developed a high-throughput mass spectrometry-based assay that enabled absolute and rapid quantification of the 3-sialyllactose-to-xanthosine ratio in urine samples. A composite signature of ratios of 3-sialyllactose to xanthosine and quinolinate to X-16397 and our previously reported urinary cell mRNA signature of 18S ribosomal RNA, CD3ε mRNA, and interferon-inducible protein-10 mRNA outperformed the metabolite signatures and the mRNA signature. The area under the receiver operating characteristics curve for the composite metabolite-mRNA signature was 0.93, and the signature was diagnostic of acute cellular rejection with a specificity of 84% and a sensitivity of 90%. The composite signature, developed using solely biopsy specimen-matched urine samples, predicted future acute cellular rejection when applied to pristine samples taken days to weeks before biopsy. We conclude that metabolite profiling of urine offers a noninvasive means of diagnosing and prognosticating acute cellular rejection in the human kidney allograft, and that the combined metabolite and mRNA signature is diagnostic and prognostic of acute cellular rejection with very high accuracy.
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Affiliation(s)
- Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar; Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Joseph E Schwartz
- Department of Psychiatry, Stony Brook University, Stony Brook, New York; Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Vijay K Sharma
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Qiuying Chen
- Department of Pharmacology, Weill Cornell College of Medicine, New York, New York
| | - John R Lee
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Thangamani Muthukumar
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Darshana M Dadhania
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Ruchuang Ding
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - David N Ikle
- Rho Federal Systems, Chapel Hill, North Carolina
| | - Nancy D Bridges
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Nikki M Williams
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | | | - Michael Abecassis
- Division of Surgery-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - John Friedewald
- Division of Nephrology-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Stuart J Knechtle
- Division of Surgery, Department of Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin
| | - Yolanda T Becker
- Division of Surgery, Department of Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin
| | - Benjamin Samstein
- Division of Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, New York; and
| | - Abraham Shaked
- Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Steven S Gross
- Department of Pharmacology, Weill Cornell College of Medicine, New York, New York
| | - Manikkam Suthanthiran
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York;
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Mondul AM, Moore SC, Weinstein SJ, Karoly ED, Sampson JN, Albanes D. Metabolomic analysis of prostate cancer risk in a prospective cohort: The alpha-tocolpherol, beta-carotene cancer prevention (ATBC) study. Int J Cancer 2015; 137:2124-32. [PMID: 25904191 PMCID: PMC4537663 DOI: 10.1002/ijc.29576] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/09/2015] [Accepted: 04/13/2015] [Indexed: 12/17/2022]
Abstract
Despite decades of concerted epidemiological research, relatively little is known about the etiology of prostate cancer. As genome-wide association studies have identified numerous genetic variants, so metabolomic profiling of blood and other tissues represents an agnostic, "broad-spectrum" approach for examining potential metabolic biomarkers of prostate cancer risk. To this end, we conducted a prospective analysis of prostate cancer within the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study cohort based on 200 cases (100 aggressive) and 200 controls (age- and blood collection date-matched) with fasting serum collected up to 20 years prior to case diagnoses. Ultrahigh performance liquid chromatography/mass spectroscopy and gas chromatography/mass spectroscopy identified 626 compounds detected in >95% of the men and the odds ratio per 1-standard deviation increase in log-metabolite levels and risk were estimated using conditional logistic regression. We observed strong inverse associations between energy and lipid metabolites and aggressive cancer (p = 0.018 and p = 0.041, respectively, for chemical class over-representation). Inositol-1-phosphate showed the strongest association (OR = 0.56, 95% CI = 0.39-0.81, p = 0.002) and glycerophospholipids and fatty acids were heavily represented; e.g., oleoyl-linoleoyl-glycerophosphoinositol (OR = 0.64, p = 0.004), 1-stearoylglycerophosphoglycerol (OR=0.65, p = 0.025), stearate (OR=0.65, p = 0.010) and docosadienoate (OR = 0.66, p = 0.014). Both alpha-ketoglutarate and citrate were associated with aggressive disease risk (OR = 0.69, 95% CI = 0.51-0.94, p = 0.02; OR = 0.69, 95% CI = 0.50-0.95, p = 0.02), as were elevated thyroxine and trimethylamine oxide (OR = 1.65, 95% CI = 1.08-2.54, p = 0.021; and OR = 1.36, 95% CI = 1.02-1.81, p = 0.039). Serum PSA adjustment did not alter the findings. Our data reveal several metabolomic leads that may have pathophysiological relevance to prostate carcinogenesis and should be examined through additional research.
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Affiliation(s)
- Alison M Mondul
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI
| | - Steven C Moore
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD
| | | | - Joshua N Sampson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD
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Miller DB, Karoly ED, Jones JC, Ward WO, Vallanat BD, Andrews DL, Schladweiler MC, Snow SJ, Bass VL, Richards JE, Ghio AJ, Cascio WE, Ledbetter AD, Kodavanti UP. Inhaled ozone (O3)-induces changes in serum metabolomic and liver transcriptomic profiles in rats. Toxicol Appl Pharmacol 2015; 286:65-79. [PMID: 25838073 DOI: 10.1016/j.taap.2015.03.025] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 02/13/2015] [Accepted: 03/23/2015] [Indexed: 12/20/2022]
Abstract
Air pollution has been linked to increased incidence of diabetes. Recently, we showed that ozone (O3) induces glucose intolerance, and increases serum leptin and epinephrine in Brown Norway rats. In this study, we hypothesized that O3 exposure will cause systemic changes in metabolic homeostasis and that serum metabolomic and liver transcriptomic profiling will provide mechanistic insights. In the first experiment, male Wistar Kyoto (WKY) rats were exposed to filtered air (FA) or O3 at 0.25, 0.50, or 1.0ppm, 6h/day for two days to establish concentration-related effects on glucose tolerance and lung injury. In a second experiment, rats were exposed to FA or 1.0ppm O3, 6h/day for either one or two consecutive days, and systemic metabolic responses were determined immediately after or 18h post-exposure. O3 increased serum glucose and leptin on day 1. Glucose intolerance persisted through two days of exposure but reversed 18h-post second exposure. O3 increased circulating metabolites of glycolysis, long-chain free fatty acids, branched-chain amino acids and cholesterol, while 1,5-anhydroglucitol, bile acids and metabolites of TCA cycle were decreased, indicating impaired glycemic control, proteolysis and lipolysis. Liver gene expression increased for markers of glycolysis, TCA cycle and gluconeogenesis, and decreased for markers of steroid and fat biosynthesis. Genes involved in apoptosis and mitochondrial function were also impacted by O3. In conclusion, short-term O3 exposure induces global metabolic derangement involving glucose, lipid, and amino acid metabolism, typical of a stress-response. It remains to be examined if these alterations contribute to insulin resistance upon chronic exposure.
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Affiliation(s)
- Desinia B Miller
- Curriculum in Toxicology, University of North Carolina-Chapel Hill, Chapel Hill, NC, USA
| | | | | | - William O Ward
- Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Beena D Vallanat
- Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Debora L Andrews
- Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C Schladweiler
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Samantha J Snow
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Virginia L Bass
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Judy E Richards
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Andrew J Ghio
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Wayne E Cascio
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Allen D Ledbetter
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Urmila P Kodavanti
- Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
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Patsoukis N, Bardhan K, Chatterjee P, Sari D, Liu B, Bell LN, Karoly ED, Freeman GJ, Petkova V, Seth P, Li L, Boussiotis VA. PD-1 alters T-cell metabolic reprogramming by inhibiting glycolysis and promoting lipolysis and fatty acid oxidation. Nat Commun 2015; 6:6692. [PMID: 25809635 PMCID: PMC4389235 DOI: 10.1038/ncomms7692] [Citation(s) in RCA: 761] [Impact Index Per Article: 84.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 02/19/2015] [Indexed: 12/12/2022] Open
Abstract
During activation, T cells undergo metabolic reprogramming, which imprints distinct functional fates. We determined that on PD-1 ligation, activated T cells are unable to engage in glycolysis or amino acid metabolism but have an increased rate of fatty acid β-oxidation (FAO). PD-1 promotes FAO of endogenous lipids by increasing expression of CPT1A, and inducing lipolysis as indicated by elevation of the lipase ATGL, the lipolysis marker glycerol and release of fatty acids. Conversely, CTLA-4 inhibits glycolysis without augmenting FAO, suggesting that CTLA-4 sustains the metabolic profile of non-activated cells. Because T cells utilize glycolysis during differentiation to effectors, our findings reveal a metabolic mechanism responsible for PD-1-mediated blockade of T-effector cell differentiation. The enhancement of FAO provides a mechanistic explanation for the longevity of T cells receiving PD-1 signals in patients with chronic infections and cancer, and for their capacity to be reinvigorated by PD-1 blockade. Activation of T cells results in metabolic reprogramming to favour glycolysis. Here, Patsoukis et al. show that the surface receptor PD-1 inhibits glycolysis and increases the metabolism of lipids, providing a potential mechanism for the blockade of T effector functions but also for the longevity accompanying T cell exhaustion.
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Affiliation(s)
- Nikolaos Patsoukis
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Kankana Bardhan
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Pranam Chatterjee
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Duygu Sari
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Bianling Liu
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Lauren N Bell
- Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, USA
| | - Edward D Karoly
- Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, USA
| | - Gordon J Freeman
- Division of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02284-9168, USA
| | - Victoria Petkova
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Pankaj Seth
- 1] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Division of Interdisciplinary Medicine and Biotechnology, Beth Israel Deaconess Medical Centerr, Harvard Medical School, 330 Brookline Avenue, Dana 513-517, Boston, Massachusetts 02215, USA
| | - Lequn Li
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
| | - Vassiliki A Boussiotis
- 1] Division of Hematology-Oncology, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA [3] Beth Israel Deaconess Cancer Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA
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James EL, Michalek RD, Pitiyage GN, de Castro AM, Vignola KS, Jones J, Mohney RP, Karoly ED, Prime SS, Parkinson EK. Senescent human fibroblasts show increased glycolysis and redox homeostasis with extracellular metabolomes that overlap with those of irreparable DNA damage, aging, and disease. J Proteome Res 2015; 14:1854-71. [PMID: 25690941 DOI: 10.1021/pr501221g] [Citation(s) in RCA: 146] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cellular senescence can modulate various pathologies and is associated with irreparable DNA double-strand breaks (IrrDSBs). Extracellular senescence metabolomes (ESMs) were generated from fibroblasts rendered senescent by proliferative exhaustion (PEsen) or 20 Gy of γ rays (IrrDSBsen) and compared with those of young proliferating cells, confluent cells, quiescent cells, and cells exposed to repairable levels of DNA damage to identify novel noninvasive markers of senescent cells. ESMs of PEsen and IrrDSBsen overlapped and showed increased levels of citrate, molecules involved in oxidative stress, a sterol, monohydroxylipids, tryptophan metabolism, phospholipid, and nucleotide catabolism, as well as reduced levels of dipeptides containing branched chain amino acids. The ESM overlaps with the aging and disease body fluid metabolomes, supporting their utility in the noninvasive detection of human senescent cells in vivo and by implication the detection of a variety of human pathologies. Intracellular metabolites of senescent cells showed a relative increase in glycolysis, gluconeogenesis, the pentose-phosphate pathway, and, consistent with this, pyruvate dehydrogenase kinase transcripts. In contrast, tricarboxylic acid cycle enzyme transcript levels were unchanged and their metabolites were depleted. These results are surprising because glycolysis antagonizes senescence entry but are consistent with established senescent cells entering a state of low oxidative stress.
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Affiliation(s)
| | - Ryan D Michalek
- ‡Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, United States
| | | | | | - Katie S Vignola
- ‡Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, United States
| | - Janice Jones
- ‡Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, United States
| | - Robert P Mohney
- ‡Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, United States
| | - Edward D Karoly
- ‡Metabolon, Inc., 617 Davis Drive, Suite 400, Durham, North Carolina 27713, United States
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Kuzaj P, Kuhn J, Michalek RD, Karoly ED, Faust I, Dabisch-Ruthe M, Knabbe C, Hendig D. Large-scaled metabolic profiling of human dermal fibroblasts derived from pseudoxanthoma elasticum patients and healthy controls. PLoS One 2014; 9:e108336. [PMID: 25265166 PMCID: PMC4181624 DOI: 10.1371/journal.pone.0108336] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 08/29/2014] [Indexed: 12/18/2022] Open
Abstract
Mutations in the ABC transporter ABCC6 were recently identified as cause of Pseudoxanthoma elasticum (PXE), a rare genetic disorder characterized by progressive mineralization of elastic fibers. We used an untargeted metabolic approach to identify biochemical differences between human dermal fibroblasts from healthy controls and PXE patients in an attempt to find a link between ABCC6 deficiency, cellular metabolic alterations and disease pathogenesis. 358 compounds were identified by mass spectrometry covering lipids, amino acids, peptides, carbohydrates, nucleotides, vitamins and cofactors, xenobiotics and energy metabolites. We found substantial differences in glycerophospholipid composition, leucine dipeptides, and polypeptides as well as alterations in pantothenate and guanine metabolism to be significantly associated with PXE pathogenesis. These findings can be linked to extracellular matrix remodeling and increased oxidative stress, which reflect characteristic hallmarks of PXE. Our study could facilitate a better understanding of biochemical pathways involved in soft tissue mineralization.
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Affiliation(s)
- Patricia Kuzaj
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Joachim Kuhn
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Ryan D. Michalek
- Metabolon, Inc., Durham, North Carolina, United States of America
| | - Edward D. Karoly
- Metabolon, Inc., Durham, North Carolina, United States of America
| | - Isabel Faust
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Mareike Dabisch-Ruthe
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Cornelius Knabbe
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Doris Hendig
- Institut für Laboratoriums- und Transfusionsmedizin, Herz- und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
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Roy D, Mondal S, Wang C, He X, Khurana A, Giri S, Hoffmann R, Jung DB, Kim SH, Chini EN, Periera JC, Folmes CD, Mariani A, Dowdy SC, Bakkum-Gamez JN, Riska SM, Oberg AL, Karoly ED, Bell LN, Chien J, Shridhar V. Loss of HSulf-1 promotes altered lipid metabolism in ovarian cancer. Cancer Metab 2014; 2:13. [PMID: 25225614 PMCID: PMC4164348 DOI: 10.1186/2049-3002-2-13] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 07/21/2014] [Indexed: 01/12/2023] Open
Abstract
Background Loss of the endosulfatase HSulf-1 is common in ovarian cancer, upregulates heparin binding growth factor signaling and potentiates tumorigenesis and angiogenesis. However, metabolic differences between isogenic cells with and without HSulf-1 have not been characterized upon HSulf-1 suppression in vitro. Since growth factor signaling is closely tied to metabolic alterations, we determined the extent to which HSulf-1 loss affects cancer cell metabolism. Results Ingenuity pathway analysis of gene expression in HSulf-1 shRNA-silenced cells (Sh1 and Sh2 cells) compared to non-targeted control shRNA cells (NTC cells) and subsequent Kyoto Encyclopedia of Genes and Genomics (KEGG) database analysis showed altered metabolic pathways with changes in the lipid metabolism as one of the major pathways altered inSh1 and 2 cells. Untargeted global metabolomic profiling in these isogenic cell lines identified approximately 338 metabolites using GC/MS and LC/MS/MS platforms. Knockdown of HSulf-1 in OV202 cells induced significant changes in 156 metabolites associated with several metabolic pathways including amino acid, lipids, and nucleotides. Loss of HSulf-1 promoted overall fatty acid synthesis leading to enhance the metabolite levels of long chain, branched, and essential fatty acids along with sphingolipids. Furthermore, HSulf-1 loss induced the expression of lipogenic genes including FASN, SREBF1, PPARγ, and PLA2G3 stimulated lipid droplet accumulation. Conversely, re-expression of HSulf-1 in Sh1 cells reduced the lipid droplet formation. Additionally, HSulf-1 also enhanced CPT1A and fatty acid oxidation and augmented the protein expression of key lipolytic enzymes such as MAGL, DAGLA, HSL, and ASCL1. Overall, these findings suggest that loss of HSulf-1 by concomitantly enhancing fatty acid synthesis and oxidation confers a lipogenic phenotype leading to the metabolic alterations associated with the progression of ovarian cancer. Conclusions Taken together, these findings demonstrate that loss of HSulf-1 potentially contributes to the metabolic alterations associated with the progression of ovarian pathogenesis, specifically impacting the lipogenic phenotype of ovarian cancer cells that can be therapeutically targeted.
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Affiliation(s)
- Debarshi Roy
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Susmita Mondal
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Chen Wang
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiaoping He
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Ashwani Khurana
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | | | - Robert Hoffmann
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Deok-Beom Jung
- Cancer Preventive Material Development Research Center (CPMRC), College of Oriental Medicine, Kyunghee University, Seoul 130-701, Republic of Korea
| | - Sung H Kim
- Cancer Preventive Material Development Research Center (CPMRC), College of Oriental Medicine, Kyunghee University, Seoul 130-701, Republic of Korea
| | - Eduardo N Chini
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | | | - Clifford D Folmes
- Department of Cardiovascular Disease, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Andrea Mariani
- Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Sean C Dowdy
- Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Jamie N Bakkum-Gamez
- Department of Obstetrics and Gynecology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
| | - Shaun M Riska
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN 55905, USA
| | - Ann L Oberg
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN 55905, USA
| | | | | | - Jeremy Chien
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KN 66160, USA
| | - Viji Shridhar
- Department of Experimental Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
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Mook-Kanamori DO, Selim MMED, Takiddin AH, Al-Homsi H, Al-Mahmoud KAS, Al-Obaidli A, Zirie MA, Rowe J, Yousri NA, Karoly ED, Kocher T, Sekkal Gherbi W, Chidiac OM, Mook-Kanamori MJ, Abdul Kader S, Al Muftah WA, McKeon C, Suhre K. 1,5-Anhydroglucitol in saliva is a noninvasive marker of short-term glycemic control. J Clin Endocrinol Metab 2014; 99:E479-83. [PMID: 24423354 DOI: 10.1210/jc.2013-3596] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT In most ethnicities at least a quarter of all cases with diabetes is assumed to be undiagnosed. Screening for diabetes using saliva has been suggested as an effective approach to identify affected individuals. OBJECTIVE The objective of the study was to identify a noninvasive metabolic marker of type 2 diabetes in saliva. DESIGN AND SETTING In a case-control study of type 2 diabetes, we used a clinical metabolomics discovery study to screen for diabetes-relevant metabolic readouts in saliva, using blood and urine as a reference. With a combination of three metabolomics platforms based on nontargeted mass spectrometry, we examined 2178 metabolites in saliva, blood plasma, and urine samples from 188 subjects with type 2 diabetes and 181 controls of Arab and Asian ethnicities. RESULTS We found a strong association of type 2 diabetes with 1,5-anhydroglucitol (1,5-AG) in saliva (P = 3.6 × 10(-13)). Levels of 1,5-AG in saliva highly correlated with 1,5-AG levels in blood and inversely correlated with blood glucose and glycosylated hemoglobin levels. These findings were robust across three different non-Caucasian ethnicities (Arabs, South Asians, and Filipinos), irrespective of body mass index, age, and gender. CONCLUSIONS Clinical studies have already established 1,5-AG in blood as a reliable marker of short-term glycemic control. Our study suggests that 1,5-AG in saliva can be used in national screening programs for undiagnosed diabetes, which are of particular interest for Middle Eastern countries with young populations and exceptionally high diabetes rates.
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Affiliation(s)
- Dennis O Mook-Kanamori
- Department of Physiology and Biophysics (D.O.M.-K., J.R., N.A.Y., M.J.M.-K., W.A.A.M., K.S.) and Clinical Research Core (W.S.G., O.M.C., M.J.M.-K., S.A.K., C.M.), Weill Cornell Medical College, Qatar, Doha, Qatar; Department of Endocrinology (D.O.M.-K.), Leiden University Medical Centre, 2300 RC Leiden, The Netherlands; Departments of Dermatology (M.M.E.D.S., A.H.T., H.A.-H., K.A.S.A.-M., A.A.-O.) and Endocrinology (M.A.Z.), Hamad Medical Corporation, Doha, Qatar; Metabolon Inc (E.D.K.), Durham, North Carolina 27713; Unit of Periodontology (T.K.), Department of Restorative Dentistry, Periodontology, and Endodontology, University Medicine Greifswald, D-17487 Greifswald, Germany; and Institute of Bioinformatics and Systems Biology (K.S.), Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
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Terunuma A, Putluri N, Mishra P, Mathé EA, Dorsey TH, Yi M, Wallace TA, Issaq HJ, Zhou M, Killian JK, Stevenson HS, Karoly ED, Chan K, Samanta S, Prieto D, Hsu TYT, Kurley SJ, Putluri V, Sonavane R, Edelman DC, Wulff J, Starks AM, Yang Y, Kittles RA, Yfantis HG, Lee DH, Ioffe OB, Schiff R, Stephens RM, Meltzer PS, Veenstra TD, Westbrook TF, Sreekumar A, Ambs S. MYC-driven accumulation of 2-hydroxyglutarate is associated with breast cancer prognosis. J Clin Invest 2013; 124:398-412. [PMID: 24316975 DOI: 10.1172/jci71180] [Citation(s) in RCA: 303] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 10/03/2013] [Indexed: 01/01/2023] Open
Abstract
Metabolic profiling of cancer cells has recently been established as a promising tool for the development of therapies and identification of cancer biomarkers. Here we characterized the metabolomic profile of human breast tumors and uncovered intrinsic metabolite signatures in these tumors using an untargeted discovery approach and validation of key metabolites. The oncometabolite 2-hydroxyglutarate (2HG) accumulated at high levels in a subset of tumors and human breast cancer cell lines. We discovered an association between increased 2HG levels and MYC pathway activation in breast cancer, and further corroborated this relationship using MYC overexpression and knockdown in human mammary epithelial and breast cancer cells. Further analyses revealed globally increased DNA methylation in 2HG-high tumors and identified a tumor subtype with high tissue 2HG and a distinct DNA methylation pattern that was associated with poor prognosis and occurred with higher frequency in African-American patients. Tumors of this subtype had a stem cell-like transcriptional signature and tended to overexpress glutaminase, suggestive of a functional relationship between glutamine and 2HG metabolism in breast cancer. Accordingly, 13C-labeled glutamine was incorporated into 2HG in cells with aberrant 2HG accumulation, whereas pharmacologic and siRNA-mediated glutaminase inhibition reduced 2HG levels. Our findings implicate 2HG as a candidate breast cancer oncometabolite associated with MYC activation and poor prognosis.
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Barupal DK, Lee SJ, Karoly ED, Adhya S. Inactivation of metabolic genes causes short- and long-range dys-regulation in Escherichia coli metabolic network. PLoS One 2013; 8:e78360. [PMID: 24363806 PMCID: PMC3868466 DOI: 10.1371/journal.pone.0078360] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 09/19/2013] [Indexed: 01/01/2023] Open
Abstract
The metabolic network in E. coli can be severely affected by the inactivation of metabolic genes that are required to catabolize a nutrient (D-galactose). We hypothesized that the resulting accumulation of small molecules can yield local as well as systemic effects on the metabolic network. Analysis of metabolomics data in wild-type and D-galactose non-utilizing mutants, galT, galU and galE, reveal the large metabolic differences between the wild-type and the mutants when the strains were grown in D-galactose. Network mapping suggested that the enzymatic defects affected the metabolic modules located both at short- and long-ranges from the D-galactose metabolic module. These modules suggested alterations in glutathione, energy, nucleotide and lipid metabolism and disturbed carbon to nitrogen ratio in mutant strains. The altered modules are required for normal cell growth for the wild-type strain, explaining why the cell growth is inhibited in the mutants in the presence of D-galactose. Identification of these distance-based dys-regulations would enhance the systems level understanding of metabolic networks of microorganisms having importance in biomedical and biotechnological research.
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Affiliation(s)
- Dinesh Kumar Barupal
- Genome Center, University of California Davis, Davis, California, United States of America
| | - Sang Jun Lee
- Infection and Immunity Research Center, KRIBB and University of Science and Technology, Daejeon, Korea
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Edward D. Karoly
- Metabolon, Inc., Durham, North Carolina, United States of America
| | - Sankar Adhya
- Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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Lin SC, Karoly ED, Taatjes DJ. The human ΔNp53 isoform triggers metabolic and gene expression changes that activate mTOR and alter mitochondrial function. Aging Cell 2013; 12:863-72. [PMID: 23734707 DOI: 10.1111/acel.12108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2013] [Indexed: 12/20/2022] Open
Abstract
A naturally occurring p53 isoform that lacks 39 residues at the N-terminus (denoted ΔNp53), when expressed with wild-type p53 (WTp53), forms mixed ΔNp53:WTp53 tetramers and causes accelerated aging in mice. Cellular alterations specific to ΔNp53:WTp53 have been difficult to assess because ΔNp53 and WTp53 coexpression results in tetramer heterogeneity, including formation of contaminating WTp53 tetramers. Based on the p53 tetramer structure, we expressed ΔNp53 and WTp53 as a single transcript that maintained tetramer architecture, ensuring a 2:2 ΔNp53:WTp53 stoichiometry. As expected, ΔNp53:WTp53 tetramers were stable and transcriptionally active in vitro and in cells, largely mimicking the function of WTp53 tetramers. Microarray analyses, however, revealed about 80 genes whose expression was altered twofold or more in ΔNp53:WTp53 cells. Moreover, global metabolomic profiling quantitated hundreds of biochemicals across different experiments (WTp53, ΔNp53:WTp53, plus controls). When evaluated collectively, these data suggested altered mTOR signaling and mitochondrial function-each canonical regulators of longevity-in cells expressing ΔNp53:WTp53 vs. WTp53. Increased levels of free amino acids, increased expression of IRS-1, and decreased expression of INPP5D/SHIP-1 suggested activated mTOR signaling in ΔNp53:WTp53 cells; this was confirmed upon comparative analyses of several mTOR pathway intermediates. We also observed changes in mitochondrial function in ΔNp53:WTp53 cells, which correlated with increased MARS2 expression and increased levels of carnitine, acetyl CoA, ATP, and Krebs cycle intermediates. Finally, increased levels of succinate and 2-hydroxyglutarate indicate potential epigenetic means to propagate ΔNp53:WTp53-induced gene expression changes to cell progeny. This may be especially important for aging, as biological effects manifest over time.
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Affiliation(s)
- Shih-Chieh Lin
- Department of Chemistry and Biochemistry; University of Colorado; Boulder; CO 80303; USA
| | | | - Dylan J. Taatjes
- Department of Chemistry and Biochemistry; University of Colorado; Boulder; CO 80303; USA
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Sukumar M, Liu J, Ji Y, Subramanian M, Crompton JG, Yu Z, Roychoudhuri R, Palmer DC, Muranski P, Karoly ED, Mohney RP, Klebanoff CA, Lal A, Finkel T, Restifo NP, Gattinoni L. Inhibiting glycolytic metabolism enhances CD8+ T cell memory and antitumor function. J Clin Invest 2013; 123:4479-88. [PMID: 24091329 DOI: 10.1172/jci69589] [Citation(s) in RCA: 652] [Impact Index Per Article: 59.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 07/24/2013] [Indexed: 01/02/2023] Open
Abstract
Naive CD8+ T cells rely upon oxidation of fatty acids as a primary source of energy. After antigen encounter, T cells shift to a glycolytic metabolism to sustain effector function. It is unclear, however, whether changes in glucose metabolism ultimately influence the ability of activated T cells to become long-lived memory cells. We used a fluorescent glucose analog, 2-NBDG, to quantify glucose uptake in activated CD8+ T cells. We found that cells exhibiting limited glucose incorporation had a molecular profile characteristic of memory precursor cells and an increased capacity to enter the memory pool compared with cells taking up high amounts of glucose. Accordingly, enforcing glycolytic metabolism by overexpressing the glycolytic enzyme phosphoglycerate mutase-1 severely impaired the ability of CD8+ T cells to form long-term memory. Conversely, activation of CD8+ T cells in the presence of an inhibitor of glycolysis, 2-deoxyglucose, enhanced the generation of memory cells and antitumor functionality. Our data indicate that augmenting glycolytic flux drives CD8+ T cells toward a terminally differentiated state, while its inhibition preserves the formation of long-lived memory CD8+ T cells. These results have important implications for improving the efficacy of T cell-based therapies against chronic infectious diseases and cancer.
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Mondul AM, Sampson JN, Moore SC, Weinstein SJ, Evans AM, Karoly ED, Virtamo J, Albanes D. Metabolomic profile of response to supplementation with β-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study. Am J Clin Nutr 2013; 98:488-93. [PMID: 23803886 PMCID: PMC3712556 DOI: 10.3945/ajcn.113.062778] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Two chemoprevention trials found that supplementation with β-carotene increased the risk of lung cancer and overall mortality. The biologic basis of these findings remains poorly understood. OBJECTIVE The objective was to compare the on-study change in metabolomic profiles of men randomly assigned to receive or not receive β-carotene supplements in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. DESIGN The ATBC Study was a randomized, double-blind, placebo-controlled, primary cancer prevention trial; participants were Finnish male smokers assigned to 1 of 4 intervention groups: 1) α-tocopherol, 2) β-carotene, 3) both, or 4) placebo. Fifty participants with both baseline and follow-up fasting serum samples were randomly selected from each of these groups. Metabolomic profiling was conducted by mass spectrometry. The association between change in each metabolite over time and trial assignment (β-carotene or no β-carotene) was estimated by linear regression. RESULTS We measured 489 metabolites, and 17 changed significantly (P < 0.05) in response to β-carotene supplementation. More of these 17 metabolites were of xenobiotic origin than would be expected by chance (9 of 60, or 15%; P = 0.00004). We also found a suggestive association with 1,5-anhydroglucitol-a marker of glycemic control (β = -0.379, P = 0.0071). CONCLUSIONS Male smokers supplemented with β-carotene developed metabolomic profiles consistent with the induction of cytochrome P450 enzymes, the primary metabolizers of xenobiotics in humans. These findings may shed light on the increased mortality associated with β-carotene supplementation in the ATBC Study and suggest the need to explore potential interactions between medication use and dietary supplements, particularly among smokers. This trial was registered at clinicaltrials.gov as NCT00342992.
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Affiliation(s)
- Alison M Mondul
- Nutritional Epidemiology Branch and the Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD, USA
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Burkhart RA, Pineda DM, Chand SN, Romeo C, Londin ER, Karoly ED, Cozzitorto JA, Rigoutsos I, Yeo CJ, Brody JR, Winter JM. HuR is a post-transcriptional regulator of core metabolic enzymes in pancreatic cancer. RNA Biol 2013; 10:1312-23. [PMID: 23807417 DOI: 10.4161/rna.25274] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Cancer cell metabolism differs from normal cells, yet the regulatory mechanisms responsible for these differences are incompletely understood, particularly in response to acute changes in the tumor microenvironment. HuR, an RNA-binding protein, acts under acute stress to regulate core signaling pathways in cancer through post-transcriptional regulation of mRNA targets. We demonstrate that HuR regulates the metabolic phenotype in pancreatic cancer cells and is critical for survival under acute glucose deprivation. Using three pancreatic cancer cell line models, HuR-proficient cells demonstrated superior survival under glucose deprivation when compared with isogenic cells with siRNA-silencing of HuR expression (HuR-deficient cells). We found that HuR-proficient cells utilized less glucose, but produced greater lactate, as compared with HuR-deficient cells. Acute glucose deprivation was found to act as a potent stimulus for HuR translocation from the nucleus to the cytoplasm, where HuR stabilizes its mRNA targets. We performed a gene expression array on ribonucleoprotein-immunoprecipitated mRNAs bound to HuR and identified 11 novel HuR target transcripts that encode enzymes central to glucose metabolism. Three (GPI, PRPS2 and IDH1) were selected for validation studies, and confirmed as bona fide HuR targets. These findings establish HuR as a critical regulator of pancreatic cancer cell metabolism and survival under acute glucose deprivation. Further explorations into HuR's role in cancer cell metabolism should uncover novel therapeutic targets that are critical for cancer cell survival in a metabolically compromised tumor microenvironment.
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Affiliation(s)
- Richard A Burkhart
- Department of Surgery; Jefferson Pancreas, Biliary and Related Cancer Center; Philadelphia, PA USA
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Mondul AM, Moore SC, Sampson JN, Weinstein SJ, Karoly ED, Virtamo J, Albanes D. Abstract LB-30: Metabolomic profile of response to β-carotene supplementation reveals potential for pharmacologic interactions with β-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-lb-30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Two chemoprevention trials, the ATBC Study and the Beta-Carotene and Retinol Efficacy Trial (CARET) observed that β-carotene supplementation increased lung cancer incidence and total mortality rates, and the ATBC Study found other cancers adversely impacted as well. The biologic basis of these findings is not known. We compared the on-study change in metabolomic profiles of men randomized to the trial β-carotene supplements with those who did not receive β-carotene in the ATBC Study.
Methods: A randomized, double-blind, placebo-controlled, primary cancer prevention trial with participants assigned to one of four supplementation groups: 1) α-tocopherol, 2) β-carotene, 3) both vitamins, or 4) placebo. Fifty participants were randomly selected from each of these groups, and LC/GC-MS metabolomic profiling of baseline and follow-up fasting serum samples was conducted. The association between change in each metabolite over time by intervention assignment (β-carotene vs. no β-carotene) was estimated by linear regression.
Results: We identified 516 metabolites; 17 metabolites changed with β-carotene supplementation at p<0.05 (Table). More of these 17 metabolites were xenobiotics (n=10) than would be expected by chance (p=0.001), and all were increased in those supplemented with β-carotene. We also found a suggestive inverse association with 1,5-anhydroglucitol, a marker of glycemic control (β=-0.148, p=0.007, Table).
Conclusions: Male smokers supplemented with β-carotene developed metabolomic profiles suggesting induction of cytochrome P450 enzymes and possibly poorer glycemic control. These findings may shed light on the cancer and mortality outcomes associated with β-carotene supplementation in the ATBC Study and CARET, and highlight the need to understand the potential drug interactions resulting from use of nutritional supplements.
Metabolites that changed significantly (p<0.05) in response to beta-carotene supplementation Metabolite Chemical class Effect size p-value threonine amino acid −0.071 0.0067 1,5-anhydroglucitol carbohydrate −0.148 0.0071 hippurate xenobiotics 0.387 0.0084 3-(3-hydroxyphenyl) propionate non-standard amino acid 0.665 0.0111 3-hydroxyhippurate xenobiotics 0.545 0.0126 dihydroferulic acid xenobiotics 0.408 0.0131 2-hydroxyaceaminophen sulfate xenobiotics 0.398 0.0179 3,7-dimethylurate xenobiotics 0.271 0.0240 5-acetylamino-6-amino-3-methyluracil xenobiotics 0.295 0.0241 beta-sitosterol lipid −0.235 0.0262 xylose carbohydrate −0.213 0.0358 1-methylurate xenobiotics 0.026 0.0372 2-hydroxyisobutyrate xenobiotics 0.099 0.0378 10-nonadecenoate (19:1n9) lipid 0.169 0.0434 catechol sulfate xenobiotics 0.138 0.0451 cinnamoylglycine xenobiotics 0.341 0.0475 7-ketodeoxycholate lipid 0.283 0.0498
Citation Format: Alison M. Mondul, Steven C. Moore, Joshua N. Sampson, Stephanie J. Weinstein, Edward D. Karoly, Jarmo Virtamo, Demetrius Albanes. Metabolomic profile of response to β-carotene supplementation reveals potential for pharmacologic interactions with β-carotene in the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr LB-30. doi:10.1158/1538-7445.AM2013-LB-30
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Affiliation(s)
| | | | | | | | | | - Jarmo Virtamo
- 3National Institute for Health and Welfare, Helsinki, Finland
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Chaudhri VK, Salzler GG, Dick SA, Buckman MS, Sordella R, Karoly ED, Mohney R, Stiles BM, Elemento O, Altorki NK, McGraw TE. Metabolic alterations in lung cancer-associated fibroblasts correlated with increased glycolytic metabolism of the tumor. Mol Cancer Res 2013; 11:579-92. [PMID: 23475953 DOI: 10.1158/1541-7786.mcr-12-0437-t] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Cancer cells undergo a metabolic reprogramming but little is known about metabolic alterations of other cells within tumors. We use mass spectrometry-based profiling and a metabolic pathway-based systems analysis to compare 21 primary human lung cancer-associated fibroblast lines (CAF) to "normal" fibroblast lines (NF) generated from adjacent nonneoplastic lung tissue. CAFs are protumorigenic, although the mechanisms by which CAFs support tumors have not been elucidated. We have identified several pathways whose metabolite abundance globally distinguished CAFs from NFs, suggesting that metabolic alterations are not limited to cancer cells. In addition, we found metabolic differences between CAFs from high and low glycolytic tumors that might reflect distinct roles of CAFs related to the tumor's glycolytic capacity. One such change was an increase of dipeptides in CAFs. Dipeptides primarily arise from the breakdown of proteins. We found in CAFs an increase in basal macroautophagy which likely accounts for the increase in dipeptides. Furthermore, we show a difference between CAFs and NFs in the induction of autophagy promoted by reduced glucose. In sum, our data suggest that increased autophagy may account for metabolic differences between CAFs and NFs and may play additional as yet undetermined roles in lung cancer.
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Affiliation(s)
- Virendra K Chaudhri
- Department of Biochemistry, Weill Cornell Medical College New York, New York, NY 10065, USA
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Montrose DC, Zhou XK, Kopelovich L, Yantiss RK, Karoly ED, Subbaramaiah K, Dannenberg AJ. Metabolic profiling, a noninvasive approach for the detection of experimental colorectal neoplasia. Cancer Prev Res (Phila) 2012; 5:1358-67. [PMID: 22961778 DOI: 10.1158/1940-6207.capr-12-0160] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Colorectal cancer is the second leading cause of cancer-related deaths in the United States. Although noninvasive stool-based screening tests are used for the early detection of colorectal neoplasia, concerns have been raised about their sensitivity and specificity. A metabolomics-based approach provides a potential noninvasive strategy to identify biomarkers of colorectal carcinogenesis including premalignant adenomas. Our primary objective was to determine whether a distinct metabolic profile could be found in both feces and plasma during experimental colorectal carcinogenesis. Feces, plasma as well as tumor tissue and normal colorectal mucosa were obtained from A/J mice at several time points following administration of azoxymethane or saline. Ultra-performance liquid chromatography tandem mass spectroscopy and gas chromatography mass spectroscopy were used to quantify metabolites in each of these matrices. Here, we show that colorectal carcinogenesis was associated with significant metabolic alterations in both the feces and plasma, some of which overlap with metabolic changes in the tumor tissue. These consisted of 33 shared changes between feces and tumor, 14 shared changes between plasma and tumor, and 3 shared changes across all 3 matrices. For example, elevated levels of sarcosine were found in both tumor and feces whereas increased levels of 2-hydroxyglutarate were found in both tumor and plasma. Collectively, these results provide evidence that metabolomics can be used to detect changes in feces and plasma during azoxymethane-induced colorectal carcinogenesis and thus provide a strong rationale for future studies in humans.
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Affiliation(s)
- David C Montrose
- Department of Medicine, Weill Cornell Medical College, New York, USA
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Saylor PJ, Karoly ED, Smith MR. Prospective study of changes in the metabolomic profiles of men during their first three months of androgen deprivation therapy for prostate cancer. Clin Cancer Res 2012; 18:3677-85. [PMID: 22589396 DOI: 10.1158/1078-0432.ccr-11-3209] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE Androgen deprivation therapy (ADT) for prostate cancer causes an increase in fasting insulin and adverse changes in body composition and serum lipid profile. It is unknown what other metabolic alterations are caused by ADT. To better characterize the metabolic effects of ADT, we measured changes in plasma metabolomic profile at baseline and after the first 3 months of therapy. EXPERIMENTAL DESIGN Fasting plasma samples were drawn from 36 subjects at baseline and after 3 months of gonadotropin releasing hormone (GnRH) agonist therapy. Extracted samples were split into equal parts for analysis on the gas chromatography-mass spectrometry and liquid chromatography/tandem mass spectrometry platforms. RESULTS Of the 292 identified metabolites, 56 changed significantly (P < 0.05) from baseline to 3 months. Notable changes were grouped as follows: (i) Multiple steroids were lower at 3 months, consistent with the effect of therapy on gonadal androgen synthesis. (ii) Most bile acids and their metabolites were higher during treatment. Cholesterol levels changed very little. (iii) Markers of lipid beta-oxidation (acetyl-carnitines and ketone bodies) and omega-oxidation were lower at 3 months. (iv) Two previously identified biomarkers of insulin resistance (2-hydroxybutyrate and branch chain keto-acid dehydrogenase complex products) were stable to lower at 3 months. CONCLUSIONS Unbiased metabolomic analyses revealed expected, novel, and unexpected results. Steroid levels fell, consistent with the effects of ADT. Most bile acids and their metabolites increased during ADT, a novel finding. Biomarkers of lipid metabolism and insulin resistance fell, unexpected given that ADT has been shown to increase fasting insulin.
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Affiliation(s)
- Philip J Saylor
- Division of Hematology-Oncology, Massachusetts General Hospital (MGH) Cancer Center, Boston, Massachusetts 02114, USA.
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Quijano C, Cao L, Fergusson MM, Romero H, Liu J, Gutkind S, Rovira II, Mohney RP, Karoly ED, Finkel T. Oncogene-induced senescence results in marked metabolic and bioenergetic alterations. Cell Cycle 2012; 11:1383-92. [PMID: 22421146 DOI: 10.4161/cc.19800] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Oncogene-induced senescence (OIS) is characterized by permanent growth arrest and the acquisition of a secretory, pro-inflammatory state. Increasingly, OIS is viewed as an important barrier to tumorgenesis. Surprisingly, relatively little is known about the metabolic changes that accompany and therefore may contribute to OIS. Here, we have performed a metabolomic and bioenergetic analysis of Ras-induced senescence. Profiling approximately 300 different intracellular metabolites reveals that cells that have undergone OIS develop a unique metabolic signature that differs markedly from cells undergoing replicative senescence. A number of lipid metabolites appear uniquely increased in OIS cells, including a marked increase in the level of certain intracellular long chain fatty acids. Functional studies reveal that this alteration in the metabolome reflects substantial changes in overall lipid metabolism. In particular, Ras-induced senescent cells manifest a decline in lipid synthesis and a significant increase in fatty acid oxidation. Increased fatty acid oxidation results in an unexpectedly high rate of basal oxygen consumption in cells that have undergone OIS. Pharmacological or genetic inhibition of carnitine palmitoyltransferase 1, the rate-limiting step in mitochondrial fatty acid oxidation, restores a pre-senescent metabolic rate and, surprisingly, selectively inhibits the secretory, pro-inflammatory state that accompanies OIS. Thus, Ras-induced senescent cells demonstrate profound alterations in their metabolic and bioenergetic profiles, particularly with regards to the levels, synthesis and oxidation of free fatty acids. Furthermore, the inflammatory phenotype that accompanies OIS appears to be related to these underlying changes in cellular metabolism.
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Affiliation(s)
- Celia Quijano
- Center for Molecular Medicine, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
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Saylor PJ, Karoly ED, Smith MR. Changes in plasma metabolomic profiles during the first 3 months of androgen-deprivation therapy for prostate cancer. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.5_suppl.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
116 Background: Androgen-deprivation therapy (ADT) with a GnRH agonist is the foundational systemic therapy for prostate cancer but causes gain of fat mass, loss of muscle mass, adverse changes in serum lipid profile, and a decline in insulin sensitivity. It is unknown whether ADT causes a broader pattern of metabolic alterations. In order to better characterize the metabolic effects of ADT, we measured changes in plasma metabolomic profile during the first 3 months of ADT. Methods: Fasting plasma samples were drawn from 36 subjects at baseline and after 3 months (range: 71-112 days) of GnRH agonist therapy. Metabolomic analyses were performed by Metabolon, Inc (Durham, NC). Extracted samples were split into equal parts for analysis on the gas chromatography/mass spectrometry and liquid chromatography/tandem mass spectrometry platforms. Matched pairs t-test was used to identify biochemicals that differed between baseline and month 3. Results: Of the 504 identified metabolites, 88 changed significantly (p<0.05) from baseline to 3 months. Consistent changes in biochemicals were grouped as follows: (a) Multiple steroids were lower at 3 months, consistent with the effect of therapy on gonadal androgen synthesis. (b) Markers of lipid beta-oxidation (acetyl-carnitines and ketone bodies) and omega-oxidation were lower at 3 months. (c) Two previously-identified biomarkers of insulin resistance (2-hydroxybutyrate and branch chain keto-acid dehydrogenase complex products) were lower at 3 months. (d) Most bile acids and their metabolites were higher during treatment. Cholesterol levels changed very little (1.06 fold change, P = 0.029). Conclusions: Unbiased metabolomic analyses on fasting plasma samples from men receiving GnRH agonist therapy revealed expected, unexpected, and novel results. Steroid levels fell, consistent with the effects of ADT. Biomarkers of lipid metabolism and insulin resistance also fell, unexpected results given that ADT has previously been shown to decrease insulin sensitivity. Finally, we observed evidence of increased levels of bile acids and bile acid metabolites. Further investigation of this novel finding is warranted.
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Affiliation(s)
- Philip James Saylor
- Massachusetts General Hospital, Boston, MA; Metabolon, Inc., Morrisville, NC; Massachusetts General Hospital Cancer Center, Boston, MA
| | - Edward D Karoly
- Massachusetts General Hospital, Boston, MA; Metabolon, Inc., Morrisville, NC; Massachusetts General Hospital Cancer Center, Boston, MA
| | - Matthew Raymond Smith
- Massachusetts General Hospital, Boston, MA; Metabolon, Inc., Morrisville, NC; Massachusetts General Hospital Cancer Center, Boston, MA
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Yan H, Reitman ZJ, Jin G, Spasojevic I, He Y, Bigner DD, Karoly ED, Yang J, Kinzler KW, Vogelstein B. Abstract LB-257: Profiling the effects of IDH1 and IDH2 mutants on the glioma cell metabolome. Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-lb-257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Somatic hotspot mutations in the NADP+-dependent isocitrate dehydrogenases, IDH1 and IDH2, arise frequently in gliomas. These gliomas include WHO grades II and III oligodendrogliomas and astrocytomas, as well as WHO grade IV secondary glioblastomas. When mutated, IDH1 and IDH2 gain the ability to produce (R)-2-hydroxyglutarate (2HG) and may dominant-negatively inhibit IDH1-WT. Aside from these specific functions, the downstream effect of these metabolic enzyme mutations on cellular metabolism is unknown. To identify metabolic alterations caused by IDH1 and IDH2 mutants, we used three mass spectrometry methods (GC-MS/MS, LC-MS/MS +ESI, and LC-MS/MS -ESI) to profile >200 biochemicals in lysates of human oligodendroglial cell line (HOG) cells that homologously express IDH1-R132H or IDH2-R172K, which are the most frequent IDH1 and IDH2 mutants in glioma, respectively. To determine whether 2HG production or inhibition of IDH1-WT could mediate similar effects on cellular metabolism as IDH mutant expression, we also analyzed cells treated cells with either 7.5mM or 30mM 2HG as well as cells with stable shRNA knockdown of endogenous IDH1-WT. Unsupervised hierarchical clustering, univariate threshold tests, correlation analysis, and principal component analysis revealed that cells expressing IDH1-R132H and IDH2-R172K have similar metabolite profiles, and that 2HG treatment also results in a similar profile. However, cell with shRNA IDH1 knockdown shared few metabolic features with cells expressing IDH mutants. Metabolite set enrichment analyses revealed that numerous amino acids, N-acetylated amino acids, TCA cycle metabolites, glutathione metabolites, and choline derivatives were markedly altered in IDH-mutant expressing cells. Strikingly, we found that N-acetyl-aspartyl-glutamate (NAAG), a common brain metabolite, is 50-fold reduced in cells expressing IDH1-R132H and >2-fold reduced in human glioma tissues with IDH1-R132H compared to glioma tissues without IDH mutations. This work shows that IDH mutants can induce widespread cellular metabolic changes. Additionally, the metabolites that were found to be altered in this study may play a role in glioma pathogenesis and may be useful for diagnosis or treatment for gliomas.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr LB-257. doi:10.1158/1538-7445.AM2011-LB-257
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Affiliation(s)
- Hai Yan
- 1Duke Univ. Medical Ctr., Durham, NC
| | | | | | | | - Yiping He
- 1Duke Univ. Medical Ctr., Durham, NC
| | | | | | - Jian Yang
- 3Johns Hopkins University School of Medicine, Baltimore, MD
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Huang YCT, Karoly ED, Dailey LA, Schmitt MT, Silbajoris R, Graff DW, Devlin RB. Comparison of gene expression profiles induced by coarse, fine, and ultrafine particulate matter. J Toxicol Environ Health A 2011; 74:296-312. [PMID: 21240730 DOI: 10.1080/15287394.2010.516238] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Coarse, fine, and ultrafine particulate matter (PM) fractions possess different physical properties and chemical compositions and may produce different adverse health effects. Studies were undertaken to determine whether or not gene expression patterns may be used to discriminate among the three size fractions. Airway epithelial cells obtained from 6 normal individuals were exposed to Chapel Hill coarse, fine or ultrafine PM (250 μg/ml) for 6 and 24 h (n=3 different individuals each). RNA was isolated and hybridized to Affymetrix cDNA microarrays. Significant genes were identified and mapped to canonical pathways. Expression of selected genes was confirmed by reverse-transcription polymerase chain reaction (RT-PCR). The numbers of genes altered by coarse, fine, and ultrafine PM increased from 0, 6, and 17 at 6 h to 1281, 302, and 455 at 24 h, respectively. The NRF2-mediated oxidative stress response, cell cycle:G2/M DNA damage checkpoint regulation, and mitotic roles of polo-like kinase were the top three pathways altered by all three fractions. Fine and ultrafine PM displayed more similar gene expression patterns. One example was the increased expression of metallothionein isoforms, reflecting the higher zinc content associated with fine and ultrafine fractions. A set of 10 genes was identified that could discriminate fine and ultrafine PM from coarse PM. These results indicate that common properties shared by the three size fractions as well as size-specific factors, e.g., compositions, may determine the effects on gene expression. Genomic markers may be used to discriminate coarse from fine and ultrafine PM.
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Affiliation(s)
- Yuh-Chin T Huang
- Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710, USA.
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Steffens DC, Wei Jiang, Krishnan KRR, Karoly ED, Mitchell MW, O'Connor CM, Kaddurah-Daouk R. Metabolomic differences in heart failure patients with and without major depression. J Geriatr Psychiatry Neurol 2010; 23:138-46. [PMID: 20101071 PMCID: PMC3279728 DOI: 10.1177/0891988709358592] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Metabolomics is an emerging technology that allows researchers to characterize hundreds of small molecules that comprise the metabolome. We sought to determine metabolic differences in depressed and nondepressed participants. The sample consisted of a depressed group of patients with heart failure enrolled in an NIMH-supported clinical trial of sertraline versus placebo in depressed heart failure patients, and a nondepressed comparator group of heart failure patients. Plasma was obtained from blood samples provided by participants at baseline, and samples were profiled on GC-MS and LC-MS metabolomics platforms for biochemical content. A number of biochemicals were significantly different between groups, with depressed participants showing higher concentrations of several amino acids and dicarboxylic fatty acids. These results are consistent with prior findings where changes in neurotransmitter systems and fatty acid metabolism were shown to associate with the depressed state. It is unclear what role heart failure may have played in these differing concentrations.
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Affiliation(s)
- David C. Steffens
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA, , Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Wei Jiang
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA, Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - K. Ranga R. Krishnan
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
| | | | | | | | - Rima Kaddurah-Daouk
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA
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Gottipolu RR, Wallenborn JG, Karoly ED, Schladweiler MC, Ledbetter AD, Krantz T, Linak WP, Nyska A, Johnson JA, Thomas R, Richards JE, Jaskot RH, Kodavanti UP. One-month diesel exhaust inhalation produces hypertensive gene expression pattern in healthy rats. Environ Health Perspect 2009; 117:38-46. [PMID: 19165385 PMCID: PMC2627863 DOI: 10.1289/ehp.11647] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2008] [Accepted: 09/11/2008] [Indexed: 05/08/2023]
Abstract
BACKGROUND Exposure to diesel exhaust (DE) is linked to vasoconstriction, endothelial dysfunction, and myocardial ischemia in compromised individuals. OBJECTIVE We hypothesized that DE inhalation would cause greater inflammation, hematologic alterations, and cardiac molecular impairment in spontaneously hypertensive (SH) rats than in healthy Wistar Kyoto (WKY) rats. METHODS AND RESULTS Male rats (12-14 weeks of age) were exposed to air or DE from a 30-kW Deutz engine at 500 or 2,000 microg/m3, 4 hr/day, 5 days/week for 4 weeks. Neutrophilic influx was noted in the lung lavage fluid of both strains, but injury markers were minimally changed. Particle-laden macrophages were apparent histologically in DE-exposed rats. Lower baseline cardiac anti-oxidant enzyme activities were present in SH than in WKY rats; however, no DE effects were noted. Cardiac mitochondrial aconitase activity decreased after DE exposure in both strains. Electron microscopy indicated abnormalities in cardiac mitochondria of control SH but no DE effects. Gene expression profiling demonstrated alterations in 377 genes by DE in WKY but none in SH rats. The direction of DE-induced changes in WKY mimicked expression pattern of control SH rats without DE. Most genes affected by DE were down-regulated in WKY. The same genes were down-regulated in SH without DE producing a hypertensive-like expression pattern. The down-regulated genes included those that regulate compensatory response, matrix metabolism, mitochondrial function, and oxidative stress response. No up-regulation of inflammatory genes was noted. CONCLUSIONS We provide the evidence that DE inhalation produces a hypertensive-like cardiac gene expression pattern associated with mitochondrial oxidative stress in healthy rats.
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Affiliation(s)
- Reddy R. Gottipolu
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - J. Grace Wallenborn
- School of Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Edward D. Karoly
- Human Studies Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Chapel Hill, North Carolina, USA
| | - Mette C. Schladweiler
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Allen D. Ledbetter
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Todd Krantz
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - William P. Linak
- Air Pollution Prevention and Control Division, National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | | | - Jo Anne Johnson
- Laboratory of Experimental Pathology, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
| | - Ronald Thomas
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Judy E. Richards
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Richard H. Jaskot
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
| | - Urmila P. Kodavanti
- Experimental Toxicology Division, National Health & Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
- Address correspondence to U.P. Kodavanti, MD: B143-01, ETD/NHEERL, U.S. EPA, 109 T.W. Alexander Dr., Research Triangle Park, NC 27709 USA. Telephone: (919) 541-4963. Fax: (919) 541-0026. E-mail:
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Kodavanti UP, Schladweiler MC, Gilmour PS, Wallenborn JG, Mandavilli BS, Ledbetter AD, Christiani DC, Runge MS, Karoly ED, Costa DL, Peddada S, Jaskot R, Richards JH, Thomas R, Madamanchi NR, Nyska A. The role of particulate matter-associated zinc in cardiac injury in rats. Environ Health Perspect 2008; 116:13-20. [PMID: 18197293 PMCID: PMC2199289 DOI: 10.1289/ehp.10379] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Accepted: 10/23/2007] [Indexed: 05/03/2023]
Abstract
BACKGROUND Exposure to particulate matter (PM) has been associated with increased cardiovascular morbidity; however, causative components are unknown. Zinc is a major element detected at high levels in urban air. OBJECTIVE We investigated the role of PM-associated zinc in cardiac injury. METHODS We repeatedly exposed 12- to 14-week-old male Wistar Kyoto rats intratracheally (1x/week for 8 or 16 weeks) to a) saline (control); b) PM having no soluble zinc (Mount St. Helens ash, MSH); or c) whole-combustion PM suspension containing 14.5 microg/mg of water-soluble zinc at high dose (PM-HD) and d ) low dose (PM-LD), e) the aqueous fraction of this suspension (14.5 microg/mg of soluble zinc) (PM-L), or f ) zinc sulfate (rats exposed for 8 weeks received double the concentration of all PM components of rats exposed for 16 weeks). RESULTS Pulmonary inflammation was apparent in all exposure groups when compared with saline (8 weeks > 16 weeks). PM with or without zinc, or with zinc alone caused small increases in focal subepicardial inflammation, degeneration, and fibrosis. Lesions were not detected in controls at 8 weeks but were noted at 16 weeks. We analyzed mitochondrial DNA damage using quantitative polymerase chain reaction and found that all groups except MSH caused varying degrees of damage relative to control. Total cardiac aconitase activity was inhibited in rats receiving soluble zinc. Expression array analysis of heart tissue revealed modest changes in mRNA for genes involved in signaling, ion channels function, oxidative stress, mitochondrial fatty acid metabolism, and cell cycle regulation in zinc but not in MSH-exposed rats. CONCLUSION These results suggest that water-soluble PM-associated zinc may be one of the causal components involved in PM cardiac effects.
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Affiliation(s)
- Urmila P Kodavanti
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC 27710, USA.
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Graff DW, Schmitt MT, Dailey LA, Duvall RM, Karoly ED, Devlin RB. Assessing the role of particulate matter size and composition on gene expression in pulmonary cells. Inhal Toxicol 2007; 19 Suppl 1:23-8. [PMID: 17886046 DOI: 10.1080/08958370701490551] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Identifying the mechanisms by which air pollution causes human health effects is a daunting task. Airsheds around the world are composed of pollution mixtures made up of hundreds of chemical and biological components with an extensive array of physicochemical properties. Current in vivo approaches are limited to the identification of associations between pollutants and health but do not allow for the identification of precise biological mechanisms of effect or the component(s) responsible for the effect. High-throughput in vitro methods using relevant cell culture systems and microarray technology allow researchers to evaluate the mechanisms by which air pollutants affect human health. Our studies have used human airway epithelial cells primarily to test the toxicological effects of particles of different sizes and of various particle components from several cities across the United States. Chemical mass balance analysis is also being used to analyze these samples to establish links between physicochemical properties of particulate matter (PM) and potential sources. The ultimate goal of this line of research is to link the mechanistic data to the PM source data in order to gain an understanding about how the components and sources of PM affect human health.
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Affiliation(s)
- Donald W Graff
- MDS Pharma Services, Inc., Lincoln, Nebraska 68521, USA.
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