1
|
Huang N, Winans T, Wyman B, Oaks Z, Faludi T, Choudhary G, Lai ZW, Lewis J, Beckford M, Duarte M, Krakko D, Patel A, Park J, Caza T, Sadeghzadeh M, Morel L, Haas M, Middleton F, Banki K, Perl A. Rab4A-directed endosome traffic shapes pro-inflammatory mitochondrial metabolism in T cells via mitophagy, CD98 expression, and kynurenine-sensitive mTOR activation. Nat Commun 2024; 15:2598. [PMID: 38519468 PMCID: PMC10960037 DOI: 10.1038/s41467-024-46441-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 02/23/2023] [Accepted: 02/28/2024] [Indexed: 03/25/2024] Open
Abstract
Activation of the mechanistic target of rapamycin (mTOR) is a key metabolic checkpoint of pro-inflammatory T-cell development that contributes to the pathogenesis of autoimmune diseases, such as systemic lupus erythematosus (SLE), however, the underlying mechanisms remain poorly understood. Here, we identify a functional role for Rab4A-directed endosome traffic in CD98 receptor recycling, mTOR activation, and accumulation of mitochondria that connect metabolic pathways with immune cell lineage development and lupus pathogenesis. Based on integrated analyses of gene expression, receptor traffic, and stable isotope tracing of metabolic pathways, constitutively active Rab4AQ72L exerts cell type-specific control over metabolic networks, dominantly impacting CD98-dependent kynurenine production, mTOR activation, mitochondrial electron transport and flux through the tricarboxylic acid cycle and thus expands CD4+ and CD3+CD4-CD8- double-negative T cells over CD8+ T cells, enhancing B cell activation, plasma cell development, antinuclear and antiphospholipid autoantibody production, and glomerulonephritis in lupus-prone mice. Rab4A deletion in T cells and pharmacological mTOR blockade restrain CD98 expression, mitochondrial metabolism and lineage skewing and attenuate glomerulonephritis. This study identifies Rab4A-directed endosome traffic as a multilevel regulator of T cell lineage specification during lupus pathogenesis.
Collapse
Affiliation(s)
- Nick Huang
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Thomas Winans
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Brandon Wyman
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Zachary Oaks
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Tamas Faludi
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Gourav Choudhary
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Zhi-Wei Lai
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Joshua Lewis
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Miguel Beckford
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Manuel Duarte
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Daniel Krakko
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Akshay Patel
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Joy Park
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Tiffany Caza
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Mahsa Sadeghzadeh
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Mark Haas
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Frank Middleton
- Department of Neuroscience and Physiology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Katalin Banki
- Department of Pathology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA
| | - Andras Perl
- Department of Medicine, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA.
- Department of Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA.
- Department of Microbiology and Immunology, State University of New York, Upstate Medical University, Norton College of Medicine, Syracuse, New York, NY, 13210, USA.
| |
Collapse
|
2
|
Winans T, Oaks Z, Choudhary G, Patel A, Huang N, Faludi T, Krakko D, Nolan J, Lewis J, Blair S, Lai Z, Landas SK, Middleton F, Asara JM, Chung SK, Wyman B, Azadi P, Banki K, Perl A. mTOR-dependent loss of PON1 secretion and antiphospholipid autoantibody production underlie autoimmunity-mediated cirrhosis in transaldolase deficiency. J Autoimmun 2023; 140:103112. [PMID: 37742509 PMCID: PMC10957505 DOI: 10.1016/j.jaut.2023.103112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/26/2023]
Abstract
Transaldolase deficiency predisposes to chronic liver disease progressing from cirrhosis to hepatocellular carcinoma (HCC). Transition from cirrhosis to hepatocarcinogenesis depends on mitochondrial oxidative stress, as controlled by cytosolic aldose metabolism through the pentose phosphate pathway (PPP). Progression to HCC is critically dependent on NADPH depletion and polyol buildup by aldose reductase (AR), while this enzyme protects from carbon trapping in the PPP and growth restriction in TAL deficiency. Although AR inactivation blocked susceptibility to hepatocarcinogenesis, it enhanced growth restriction, carbon trapping in the non-oxidative branch of the PPP and failed to reverse the depletion of glucose 6-phosphate (G6P) and liver cirrhosis. Here, we show that inactivation of the TAL-AR axis results in metabolic stress characterized by reduced mitophagy, enhanced overall autophagy, activation of the mechanistic target of rapamycin (mTOR), diminished glycosylation and secretion of paraoxonase 1 (PON1), production of antiphospholipid autoantibodies (aPL), loss of CD161+ NK cells, and expansion of CD38+ Ito cells, which are responsive to treatment with rapamycin in vivo. The present study thus identifies glycosylation and secretion of PON1 and aPL production as mTOR-dependent regulatory checkpoints of autoimmunity underlying liver cirrhosis in TAL deficiency.
Collapse
Affiliation(s)
- T Winans
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Z Oaks
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - G Choudhary
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - A Patel
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - N Huang
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - T Faludi
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - D Krakko
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J Nolan
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J Lewis
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Sarah Blair
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - Z Lai
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - S K Landas
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - F Middleton
- Departments of Neuroscience, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - J M Asara
- Division of Signal Transduction, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S K Chung
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macau
| | - B Wyman
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - P Azadi
- University of Georgia, Athens, GA 30602, USA
| | - K Banki
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA
| | - A Perl
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Microbiology and Immunology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA; Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, 13210, USA.
| |
Collapse
|
3
|
Oaks Z, Patel A, Huang N, Choudhary G, Winans T, Faludi T, Krakko D, Duarte M, Lewis J, Beckford M, Blair S, Kelly R, Landas SK, Middleton FA, Asara JM, Chung SK, Fernandez DR, Banki K, Perl A. Publisher Correction: Cytosolic aldose metabolism contributes to progression from cirrhosis to hepatocarcinogenesis. Nat Metab 2023; 5:349. [PMID: 36755183 DOI: 10.1038/s42255-023-00752-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Z Oaks
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - A Patel
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - N Huang
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - G Choudhary
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - T Winans
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - T Faludi
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - D Krakko
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - M Duarte
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - J Lewis
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - M Beckford
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - S Blair
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - R Kelly
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - S K Landas
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - F A Middleton
- Departments of Neuroscience, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - J M Asara
- Division of Signal Transduction, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S K Chung
- Faculty of Medicine, Macau University of Science and Technology, Taipa, China
| | - D R Fernandez
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - K Banki
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - A Perl
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
- Departments of Microbiology and Immunology, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
| |
Collapse
|
4
|
Oaks Z, Patel A, Huang N, Choudhary G, Winans T, Faludi T, Krakko D, Duarte M, Lewis J, Beckford M, Blair S, Kelly R, Landas SK, Middleton FA, Asara JM, Chung SK, Fernandez DR, Banki K, Perl A. Cytosolic aldose metabolism contributes to progression from cirrhosis to hepatocarcinogenesis. Nat Metab 2023; 5:41-60. [PMID: 36658399 PMCID: PMC9892301 DOI: 10.1038/s42255-022-00711-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/11/2022] [Indexed: 01/21/2023]
Abstract
Oxidative stress modulates carcinogenesis in the liver; however, direct evidence for metabolic control of oxidative stress during pathogenesis, particularly, of progression from cirrhosis to hepatocellular carcinoma (HCC), has been lacking. Deficiency of transaldolase (TAL), a rate-limiting enzyme of the non-oxidative branch of the pentose phosphate pathway (PPP), restricts growth and predisposes to cirrhosis and HCC in mice and humans. Here, we show that mitochondrial oxidative stress and progression from cirrhosis to HCC and acetaminophen-induced liver necrosis are critically dependent on NADPH depletion and polyol buildup by aldose reductase (AR), while this enzyme protects from carbon trapping in the PPP and growth restriction in TAL deficiency. Both TAL and AR are confined to the cytosol; however, their inactivation distorts mitochondrial redox homeostasis in opposite directions. The results suggest that AR acts as a rheostat of carbon recycling and NADPH output of the PPP with broad implications for disease progression from cirrhosis to HCC.
Collapse
Affiliation(s)
- Z Oaks
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - A Patel
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - N Huang
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - G Choudhary
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - T Winans
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - T Faludi
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - D Krakko
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - M Duarte
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - J Lewis
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - M Beckford
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - S Blair
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - R Kelly
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - S K Landas
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - F A Middleton
- Departments of Neuroscience, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - J M Asara
- Division of Signal Transduction, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - S K Chung
- Faculty of Medicine, Macau University of Science and Technology, Taipa, China
| | - D R Fernandez
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - K Banki
- Departments of Pathology, State University of New York, Norton College of Medicine, Syracuse, NY, USA
| | - A Perl
- Departments of Medicine, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
- Departments of Biochemistry and Molecular Biology, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
- Departments of Microbiology and Immunology, State University of New York, Norton College of Medicine, Syracuse, NY, USA.
| |
Collapse
|
5
|
Brown J, Abboud G, Ma L, Choi SC, Kanda N, Zeumer-Spataro L, Lee J, Peng W, Cagmat J, Faludi T, Mohamadzadeh M, Garrett T, Mandik-Nayak L, Chervonsky A, Perl A, Morel L. Microbiota-mediated skewing of tryptophan catabolism modulates CD4+ T cells in lupus-prone mice. iScience 2022; 25:104241. [PMID: 35494242 PMCID: PMC9051618 DOI: 10.1016/j.isci.2022.104241] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/14/2022] [Accepted: 04/07/2022] [Indexed: 12/21/2022] Open
Abstract
A skewed tryptophan metabolism has been reported in patients with lupus. Here, we investigated the mechanisms by which it occurs in lupus-susceptible mice, and how tryptophan metabolites exacerbate T cell activation. Metabolomic analyses demonstrated that tryptophan is differentially catabolized in lupus mice compared to controls and that the microbiota played a role in this skewing. There was no evidence for differential expression of tryptophan catabolic enzymes in lupus mice, further supporting a major contribution of the microbiota to skewing. However, isolated lupus T cells processed tryptophan differently, suggesting a contribution of T cell intrinsic factors. Functionally, tryptophan and its microbial product tryptamine increased T cell metabolism and mTOR activation, while kynurenine promoted interferon gamma production, all of which have been associated with lupus. These results showed that a combination of microbial and T cell intrinsic factors promotes the production of tryptophan metabolites that enhance inflammatory phenotypes in lupus T cells. Intestinal dysbiosis skews tryptophan catabolism in lupus-prone mice Murine lupus CD4+ T cells have an intrinsically different processing of tryptophan Tryptophan and tryptamine increase mTOR activation and metabolism in CD4+ T cells Kynurenine promotes IFNγ production in CD4+ T cells from lupus-prone mice
Collapse
Affiliation(s)
- Josephine Brown
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Georges Abboud
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Longhuan Ma
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Seung-Chul Choi
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Nathalie Kanda
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Leilani Zeumer-Spataro
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Jean Lee
- Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA
| | - Weidan Peng
- Lankenau Institute for Medical Research, Wynnewood, PA, USA
| | - Joy Cagmat
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Tamas Faludi
- Departments of Medicine, Microbiology and Immunology, Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, College of Medicine, Syracuse, NY 13210, USA
| | - Mansour Mohamadzadeh
- Department of Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Timothy Garrett
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
| | | | | | - Andras Perl
- Departments of Medicine, Microbiology and Immunology, Biochemistry and Molecular Biology, State University of New York, Upstate Medical University, College of Medicine, Syracuse, NY 13210, USA
| | - Laurence Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610, USA
- Corresponding author
| |
Collapse
|
6
|
Faludi T, Balogh C, Serfőző Z, Molnár-Perl I. Analysis of phenolic compounds in the dissolved and suspended phases of Lake Balaton water by gas chromatography-tandem mass spectrometry. Environ Sci Pollut Res Int 2015; 22:11966-11974. [PMID: 26006075 DOI: 10.1007/s11356-015-4734-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
As a novel approach to characterize the phenolic pollutants of Lake Balaton (Central Europe, western Hungary), 26 endocrine disrupting phenols (chlorophenols, nitrophenols, alkylphenols, triclosan, bisphenol-A) were quantified in dissolved and suspended particulate matter (SPM) phases, alike. Sample collection was performed in the western and eastern basins, at 20 sites in April and October 2014. Solid-phase and ultrasound-assisted extractions to withdraw target phenols from dissolved and suspended phases were employed. Compounds were derivatized with hexamethyldisilazane and trifluoroacetic acid for their quantification as trimethylsilyl derivatives by gas chromatography-tandem mass spectrometry. In Lake Balaton's dissolved phase, 2-chlorophenol (103-164 ng/L), 4-chlorophenol (407-888 ng/L), 2,4-dichlorophenol (20.2-72.0 ng/L), 2,4,6-trichlorophenol (10.4-38.1 ng/L), 2-nitrophenol (31.0-66.5 ng/L), 4-nitrophenol (31.5-94.1 ng/L), and bisphenol-A (20.6-112 ng/L), while in its SPM, 4-chlorophenol (<LOQ-1274 μg/kg, dry matter), 4-nitrophenol (423-714 μg/kg), 4-nonylphenol isomers (1500-2910 μg/kg), and bisphenol-A (250-587 μg/kg) were determined. Since phenolics appear partially or exclusively in the SPM, the analysis of both phases proved to be of primary importance. Graphical Abstract ᅟ.
Collapse
Affiliation(s)
- T Faludi
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, 1518, Budapest 112, P.O. Box 32, Hungary
| | | | | | | |
Collapse
|
7
|
Faludi T, Andrási N, Vasanits-Zsigrai A, Záray G, Molnár-Perl I. Systematic derivatization, mass fragmentation and acquisition studies in the analysis of chlorophenols, as their silyl derivatives by gas chromatography–mass spectrometry. J Chromatogr A 2013; 1302:133-42. [DOI: 10.1016/j.chroma.2013.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 12/21/2022]
|