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Pourmand E, Zhang F, Sarparast M, Alan JK, Lee KSS. Quantitative Profiling Method for Oxylipins in Neurodegenerative Diseases by Liquid Chromatography Coupled with Tandem Mass Spectrometry. bioRxiv 2023:2023.10.02.560544. [PMID: 37873260 PMCID: PMC10592938 DOI: 10.1101/2023.10.02.560544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Aging is one of the major risk factors for many chronic diseases, including diabetes, neuropathy, hypertension, cancer, and neurodegenerative diseases. However, the mechanism behind aging and how aging affects a variety of disease progression remains unknown. Recent research demonstrated the cytochrome P450 (CYP)-epoxide hydrolase (EH) metabolites of polyunsaturated fatty acids (PUFAs) play a critical role in the abovementioned age-associated diseases. Therefore, aging could affect the abovementioned chronic diseases by modulating CYP-EH PUFA metabolism. Unfortunately, investigating how aging affects CYP-EH metabolism in human and mammalian models poses significant challenges. In this regard, we will use C. elegans as a model organism to investigate the aging effects on CYP-EH metabolism of PUFA, owing to its long history of being used to study aging and its associated benefits of conducting aging research. This project will develop analytical tools to measure the endogenous levels of CYP-EH PUFA metabolites in C. elegans using state-of-the-art ultra-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). These metabolites are very potent but present in low abundance. The dramatic increase in sensitivity in UPLC-MS/MS allows us to monitor these metabolites over the lifespan of C. elegans with minimum samples. Our results show that C. elegans produces similar CYP PUFA metabolites to mammals and humans using our SPE-UPLC-MS/MS method. We will also show that our method successfully determined the CYP-EH PUFA metabolites profile changes induced by the inhibition of C. elegans EH. The method developed from this project will significantly improve our understanding of the role of dietary PUFAs and associated metabolism on aging and neurodegeneration and will uncover new mechanisms of how aging affects neurodegeneration through the modulation of PUFA metabolic pathways.
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Affiliation(s)
- Elham Pourmand
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Fan Zhang
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Morteza Sarparast
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Jamie K Alan
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
| | - Kin Sing Stephen Lee
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
- Institute of Integrative Toxicology, Michigan State University, East Lansing, MI, USA
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2
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Sarparast M, Hinman J, Pourmand E, Vonarx D, Ramirez L, Ma W, Liachko NF, Alan JK, Lee KSS. Cytochrome P450 and Epoxide Hydrolase Metabolites in Aβ and tau-induced Neurodegeneration: Insights from Caenorhabditis elegans. bioRxiv 2023:2023.10.02.560527. [PMID: 37873467 PMCID: PMC10592936 DOI: 10.1101/2023.10.02.560527] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
This study aims to uncover potent cytochrome P450 (CYP) and epoxide hydrolase (EH) metabolites implicated in Aβ and/or tau-induced neurodegeneration, independent of neuroinflammation, by utilizing Caenorhabditis elegans (C. elegans) as a model organism. Our research reveals that Aβ and/or tau expression in C. elegans disrupts the oxylipin profile, and epoxide hydrolase inhibition alleviates the ensuing neurodegeneration, likely through elevating the epoxy-to-hydroxy ratio of various CYP-EH metabolites. In addition, our results indicated that the Aβ and tau likely affect the CYP-EH metabolism of PUFA through different mechanism. These findings emphasize the intriguing relationship between lipid metabolites and neurodegenerations, in particular, those linked to Aβ and/or tau aggregation. Furthermore, our investigation sheds light on the crucial and captivating role of CYP PUFA metabolites in C. elegans physiology, opening up possibilities for broader implications in mammalian and human contexts.
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Affiliation(s)
- Morteza Sarparast
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Jennifer Hinman
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
- Institute of Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Elham Pourmand
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Derek Vonarx
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Leslie Ramirez
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
| | - Wenjuan Ma
- Center for Statistical Training and Consulting (CSTAT), Michigan State University, East Lansing, MI, USA
| | - Nicole F. Liachko
- Geriatrics Research Education and Clinical Center, Veterrans Affairs Puget Sound Health Care System, Seattle, WA, USA
- Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Jamie K. Alan
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
| | - Kin Sing Stephen Lee
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
- Institute of Integrative Toxicology, Michigan State University, East Lansing, MI, USA
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3
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Zhang J, Yang J, Duval C, Edin ML, Williams A, Lei L, Tu M, Pourmand E, Song R, Graves JP, DeGraff LM, Wong JJL, Wang Y, Sun Q, Sanidad KZ, Wong S, Han Y, Zhang Z, Lee KSS, Park Y, Xiao H, Liu Z, Decker EA, Cui W, Zeldin DC, Zhang G. CYP eicosanoid pathway mediates colon cancer-promoting effects of dietary linoleic acid. FASEB J 2023; 37:e23009. [PMID: 37273180 DOI: 10.1096/fj.202300786r] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/11/2023] [Accepted: 05/19/2023] [Indexed: 06/06/2023]
Abstract
Human and animal studies support that consuming a high level of linoleic acid (LA, 18:2ω-6), an essential fatty acid and key component of the human diet, increases the risk of colon cancer. However, results from human studies have been inconsistent, making it challenging to establish dietary recommendations for optimal LA intake. Given the importance of LA in the human diet, it is crucial to better understand the molecular mechanisms underlying its potential colon cancer-promoting effects. Using LC-MS/MS-based targeted lipidomics, we find that the cytochrome P450 (CYP) monooxygenase pathway is a major pathway for LA metabolism in vivo. Furthermore, CYP monooxygenase is required for the colon cancer-promoting effects of LA, since the LA-rich diet fails to exacerbate colon cancer in CYP monooxygenase-deficient mice. Finally, CYP monooxygenase mediates the pro-cancer effects of LA by converting LA to epoxy octadecenoic acids (EpOMEs), which have potent effects on promoting colon tumorigenesis via gut microbiota-dependent mechanisms. Overall, these results support that CYP monooxygenase-mediated conversion of LA to EpOMEs plays a crucial role in the health effects of LA, establishing a unique mechanistic link between dietary fatty acid intake and cancer risk. These results could help in developing more effective dietary guidelines for optimal LA intake and identifying subpopulations that may be especially vulnerable to LA's negative effects.
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Affiliation(s)
- Jianan Zhang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Jun Yang
- Department of Entomology and Comprehensive Cancer Center, University of California, Davis, California, USA
| | - Caroline Duval
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Matthew L Edin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Andrea Williams
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Lei Lei
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Maolin Tu
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Elham Pourmand
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan, USA
| | - Renhua Song
- Epigenetics and RNA Biology Program Centenary Institute, University of Sydney, Camperdown, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Joan P Graves
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Laura M DeGraff
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Justin J-L Wong
- Epigenetics and RNA Biology Program Centenary Institute, University of Sydney, Camperdown, New South Wales, Australia
- Faculty of Medicine and Health, University of Sydney, Camperdown, New South Wales, Australia
| | - Yige Wang
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Quancai Sun
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Katherine Z Sanidad
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Siu Wong
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Yanhui Han
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Zhenyu Zhang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Kin Sing Stephen Lee
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, Michigan, USA
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Zhenhua Liu
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA
- Nutrition and Cancer Prevention Laboratory, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Eric A Decker
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts, USA
- Molecular and Cellular Biology Graduate Program, University of Massachusetts, Amherst, Massachusetts, USA
| | - Darryl C Zeldin
- Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Guodong Zhang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
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Sarparast M, Pourmand E, Hinman J, Vonarx D, Reason T, Zhang F, Paithankar S, Chen B, Borhan B, Watts JL, Alan J, Lee KSS. Dihydroxy-Metabolites of Dihomo-γ-linolenic Acid Drive Ferroptosis-Mediated Neurodegeneration. ACS Cent Sci 2023; 9:870-882. [PMID: 37252355 PMCID: PMC10214511 DOI: 10.1021/acscentsci.3c00052] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Indexed: 05/31/2023]
Abstract
Even after decades of research, the mechanism of neurodegeneration remains understudied, hindering the discovery of effective treatments for neurodegenerative diseases. Recent reports suggest that ferroptosis could be a novel therapeutic target for neurodegenerative diseases. While polyunsaturated fatty acid (PUFA) plays an important role in neurodegeneration and ferroptosis, how PUFAs may trigger these processes remains largely unknown. PUFA metabolites from cytochrome P450 and epoxide hydrolase metabolic pathways may modulate neurodegeneration. Here, we test the hypothesis that specific PUFAs regulate neurodegeneration through the action of their downstream metabolites by affecting ferroptosis. We find that the PUFA dihomo-γ-linolenic acid (DGLA) specifically induces ferroptosis-mediated neurodegeneration in dopaminergic neurons. Using synthetic chemical probes, targeted metabolomics, and genetic mutants, we show that DGLA triggers neurodegeneration upon conversion to dihydroxyeicosadienoic acid through the action of CYP-EH (CYP, cytochrome P450; EH, epoxide hydrolase), representing a new class of lipid metabolites that induce neurodegeneration via ferroptosis.
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Affiliation(s)
- Morteza Sarparast
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Elham Pourmand
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Jennifer Hinman
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Derek Vonarx
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Tommy Reason
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Fan Zhang
- Department
of Pharmacology and Toxicology, Michigan
State University, East Lansing, Michigan 48824, United States
| | - Shreya Paithankar
- Department
of Pediatrics and Human Development, Michigan
State University, Grand Rapids, Michigan 49503, United States
| | - Bin Chen
- Department
of Pharmacology and Toxicology, Michigan
State University, East Lansing, Michigan 48824, United States
- Department
of Pediatrics and Human Development, Michigan
State University, Grand Rapids, Michigan 49503, United States
| | - Babak Borhan
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
| | - Jennifer L. Watts
- School
of Molecular Biosciences, Washington State
University, Pullman, Washington 99164, United States
| | - Jamie Alan
- Department
of Pharmacology and Toxicology, Michigan
State University, East Lansing, Michigan 48824, United States
| | - Kin Sing Stephen Lee
- Department
of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
- Department
of Pharmacology and Toxicology, Michigan
State University, East Lansing, Michigan 48824, United States
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Favor OK, Chauhan PS, Pourmand E, Edwards AM, Wagner JG, Lewandowski RP, Heine LK, Harkema JR, Lee KSS, Pestka JJ. Lipidome modulation by dietary omega-3 polyunsaturated fatty acid supplementation or selective soluble epoxide hydrolase inhibition suppresses rough LPS-accelerated glomerulonephritis in lupus-prone mice. Front Immunol 2023; 14:1124910. [PMID: 36875087 PMCID: PMC9978350 DOI: 10.3389/fimmu.2023.1124910] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/17/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Lipopolysaccharide (LPS)-accelerated autoimmune glomerulonephritis (GN) in NZBWF1 mice is a preclinical model potentially applicable for investigating lipidome-modulating interventions against lupus. LPS can be expressed as one of two chemotypes: smooth LPS (S-LPS) or rough LPS (R-LPS) which is devoid of O-antigen polysaccharide sidechain. Since these chemotypes differentially affect toll-like receptor 4 (TLR4)-mediated immune cell responses, these differences may influence GN induction. Methods We initially compared the effects of subchronic intraperitoneal (i.p.) injection for 5 wk with 1) Salmonella S-LPS, 2) Salmonella R-LPS, or 3) saline vehicle (VEH) (Study 1) in female NZBWF1 mice. Based on the efficacy of R-LPS in inducing GN, we next used it to compare the impact of two lipidome-modulating interventions, ω-3 polyunsaturated fatty acid (PUFA) supplementation and soluble epoxide hydrolase (sEH) inhibition, on GN (Study 2). Specifically, effects of consuming ω-3 docosahexaenoic acid (DHA) (10 g/kg diet) and/or the sEH inhibitor 1-(4-trifluoro-methoxy-phenyl)-3-(1-propionylpiperidin-4-yl) urea (TPPU) (22.5 mg/kg diet ≈ 3 mg/kg/day) on R-LPS triggering were compared. Results In Study 1, R-LPS induced robust elevations in blood urea nitrogen, proteinuria, and hematuria that were not evident in VEH- or S-LPS-treated mice. R-LPS-treated mice further exhibited kidney histopathology including robust hypertrophy, hyperplasia, thickened membranes, lymphocytic accumulation containing B and T cells, and glomerular IgG deposition consistent with GN that was not evident in VEH- or SLPS-treated groups. R-LPS but not S-LPS induced spleen enlargement with lymphoid hyperplasia and inflammatory cell recruitment in the liver. In Study 2, resultant blood fatty acid profiles and epoxy fatty acid concentrations reflected the anticipated DHA- and TPPU-mediated lipidome changes, respectively. The relative rank order of R-LPS-induced GN severity among groups fed experimental diets based on proteinuria, hematuria, histopathologic scoring, and glomerular IgG deposition was: VEH/CON< R-LPS/DHA ≈ R-LPS/TPPU<<< R-LPS/TPPU+DHA ≈ R-LPS/CON. In contrast, these interventions had modest-to- negligible effects on R-LPS-induced splenomegaly, plasma antibody responses, liver inflammation, and inflammation-associated kidney gene expression. Discussion We show for the first time that absence of O-antigenic polysaccharide in R-LPS is critical to accelerated GN in lupus-prone mice. Furthermore, intervention by lipidome modulation through DHA feeding or sEH inhibition suppressed R-LPS-induced GN; however, these ameliorative effects were greatly diminished upon combining the treatments.
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Affiliation(s)
- Olivia K. Favor
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Preeti S. Chauhan
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
| | - Elham Pourmand
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - Angel M. Edwards
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - James G. Wagner
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Ryan P. Lewandowski
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Lauren K. Heine
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
| | - Jack R. Harkema
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI, United States
| | - Kin Sing Stephen Lee
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Chemistry, Michigan State University, East Lansing, MI, United States
| | - James J. Pestka
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, United States
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
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Sarparast M, Pourmand E, Hinman J, Vonarx D, Reason T, Zhang F, Paithankar S, Chen B, Borhan B, Watts JL, Alan J, Lee KSS. Dihydroxy-Metabolites of Dihomo-gamma-linolenic Acid Drive Ferroptosis-Mediated Neurodegeneration. bioRxiv 2023:2023.01.05.522933. [PMID: 36711920 PMCID: PMC9881903 DOI: 10.1101/2023.01.05.522933] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Even after decades of research, the mechanism of neurodegeneration remains understudied, hindering the discovery of effective treatments for neurodegenerative diseases. Recent reports suggest that ferroptosis could be a novel therapeutic target for neurodegenerative diseases. While polyunsaturated fatty acid (PUFA) plays an important role in neurodegeneration and ferroptosis, how PUFAs may trigger these processes remains largely unknown. PUFA metabolites from cytochrome P450 and epoxide hydrolase metabolic pathways may modulate neurodegeneration. Here, we test the hypothesis that specific PUFAs regulate neurodegeneration through the action of their downstream metabolites by affecting ferroptosis. We find that the PUFA, dihomo gamma linolenic acid (DGLA), specifically induces ferroptosis-mediated neurodegeneration in dopaminergic neurons. Using synthetic chemical probes, targeted metabolomics, and genetic mutants, we show that DGLA triggers neurodegeneration upon conversion to dihydroxyeicosadienoic acid through the action of CYP-EH, representing a new class of lipid metabolite that induces neurodegeneration via ferroptosis.
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Affiliation(s)
- Morteza Sarparast
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Elham Pourmand
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Jennifer Hinman
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Derek Vonarx
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Tommy Reason
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Fan Zhang
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA
| | - Shreya Paithankar
- Department of Pediatrics and Human Development, Michigan State University, Grand Rapids, MI, USA
| | - Bin Chen
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA,Department of Pediatrics and Human Development, Michigan State University, Grand Rapids, MI, USA
| | - Babak Borhan
- Department of Chemistry, Michigan State University, East Lansing, MI, USA
| | - Jennifer L. Watts
- School of Molecular Biosciences, Washington State University, Pullman, WA, USA
| | - Jamie Alan
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA,Corresponding Authors
| | - Kin Sing Stephen Lee
- Department of Chemistry, Michigan State University, East Lansing, MI, USA,Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, USA,Corresponding Authors
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