1
|
Escobedo SE, Stanhope SC, Dong Z, Weake VM. Aging and Light Stress Result in Overlapping and Unique Gene Expression Changes in Photoreceptors. Genes (Basel) 2022; 13:264. [PMID: 35205309 PMCID: PMC8872477 DOI: 10.3390/genes13020264] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 11/20/2022] Open
Abstract
Advanced age is one of the leading risk factors for vision loss and eye disease. Photoreceptors are the primary sensory neurons of the eye. The extended photoreceptor cell lifespan, in addition to its high metabolic needs due to phototransduction, makes it critical for these neurons to continually respond to the stresses associated with aging by mounting an appropriate gene expression response. Here, we sought to untangle the more general neuronal age-dependent transcriptional signature of photoreceptors with that induced by light stress. To do this, we aged flies or exposed them to various durations of blue light, followed by photoreceptor nuclei-specific transcriptome profiling. Using this approach, we identified genes that are both common and uniquely regulated by aging and light induced stress. Whereas both age and blue light induce expression of DNA repair genes and a neuronal-specific signature of death, both conditions result in downregulation of phototransduction. Interestingly, blue light uniquely induced genes that directly counteract the overactivation of the phototransduction signaling cascade. Lastly, unique gene expression changes in aging photoreceptors included the downregulation of genes involved in membrane potential homeostasis and mitochondrial function, as well as the upregulation of immune response genes. We propose that light stress contributes to the aging transcriptome of photoreceptors, but that there are also other environmental or intrinsic factors involved in age-associated photoreceptor gene expression signatures.
Collapse
Affiliation(s)
- Spencer E. Escobedo
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA; (S.E.E.); (S.C.S.); (Z.D.)
| | - Sarah C. Stanhope
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA; (S.E.E.); (S.C.S.); (Z.D.)
| | - Ziyu Dong
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA; (S.E.E.); (S.C.S.); (Z.D.)
| | - Vikki M. Weake
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA; (S.E.E.); (S.C.S.); (Z.D.)
- Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
| |
Collapse
|
2
|
Jauregui-Lozano J, Hall H, Stanhope SC, Bakhle K, Marlin MM, Weake VM. The Clock:Cycle complex is a major transcriptional regulator of Drosophila photoreceptors that protects the eye from retinal degeneration and oxidative stress. PLoS Genet 2022; 18:e1010021. [PMID: 35100266 PMCID: PMC8830735 DOI: 10.1371/journal.pgen.1010021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/10/2022] [Accepted: 01/08/2022] [Indexed: 12/28/2022] Open
Abstract
The aging eye experiences physiological changes that include decreased visual function and increased risk of retinal degeneration. Although there are transcriptomic signatures in the aging retina that correlate with these physiological changes, the gene regulatory mechanisms that contribute to cellular homeostasis during aging remain to be determined. Here, we integrated ATAC-seq and RNA-seq data to identify 57 transcription factors that showed differential activity in aging Drosophila photoreceptors. These 57 age-regulated transcription factors include two circadian regulators, Clock and Cycle, that showed sustained increased activity during aging. When we disrupted the Clock:Cycle complex by expressing a dominant negative version of Clock (ClkDN) in adult photoreceptors, we observed changes in expression of 15-20% of genes including key components of the phototransduction machinery and many eye-specific transcription factors. Using ATAC-seq, we showed that expression of ClkDN in photoreceptors leads to changes in activity of 37 transcription factors and causes a progressive decrease in global levels of chromatin accessibility in photoreceptors. Supporting a key role for Clock-dependent transcription in the eye, expression of ClkDN in photoreceptors also induced light-dependent retinal degeneration and increased oxidative stress, independent of light exposure. Together, our data suggests that the circadian regulators Clock and Cycle act as neuroprotective factors in the aging eye by directing gene regulatory networks that maintain expression of the phototransduction machinery and counteract oxidative stress.
Collapse
Affiliation(s)
- Juan Jauregui-Lozano
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
| | - Hana Hall
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, Indiana, United States of America
| | - Sarah C. Stanhope
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
| | - Kimaya Bakhle
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
| | - Makayla M. Marlin
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
| | - Vikki M. Weake
- Department of Biochemistry, Purdue University, West Lafayette, Indiana, United States of America
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, Indiana, United States of America
- Purdue Center for Cancer Research, Purdue University, West Lafayette, Indiana, United States of America
| |
Collapse
|
3
|
Sun X, Berger RS, Heinrich P, Marchiq I, Pouyssegur J, Renner K, Oefner PJ, Dettmer K. Optimized Protocol for the In Situ Derivatization of Glutathione with N-Ethylmaleimide in Cultured Cells and the Simultaneous Determination of Glutathione/Glutathione Disulfide Ratio by HPLC-UV-QTOF-MS. Metabolites 2020; 10:metabo10070292. [PMID: 32709039 PMCID: PMC7407321 DOI: 10.3390/metabo10070292] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/01/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022] Open
Abstract
Glutathione (GSH) and glutathione disulfide (GSSG) are commonly used to assess the oxidative status of a biological system. Various protocols are available for the analysis of GSH and GSSG in biomedical specimens. In this study, we present an optimized protocol for the in situ derivatization of GSH with N-ethylmaleimide (NEM) to prevent GSH autooxidation, and thus to preserve the GSH/GSSG ratio during sample preparation. The protocol comprises the incubation of cells in NEM containing phosphate buffered saline (PBS), followed by metabolite extraction with 80% methanol. Further, to preserve the use of QTOF-MS, which may lack the linear dynamic range required for the simultaneous quantification of GSH and GSSG in non-targeted metabolomics, we combined liquid chromatographic separation with the online monitoring of UV absorbance of GS-NEM at 210 nm and the detection of GSSG and its corresponding stable isotope-labeled internal standard by QTOF-MS operated with a 10 Da Q1 window. The limit of detection (LOD) for GS-NEM was 7.81 µM and the linear range extended from 15.63 µM to 1000 µM with a squared correlation coefficient R2 of 0.9997. The LOD for GSSG was 0.001 µM, and the lower limit of quantification (LLOQ) was 0.01 µM, with the linear (R2 = 0.9994) range extending up to 10 µM. The method showed high repeatability with intra-run and inter-run coefficients of variation of 3.48% and 2.51% for GS-NEM, and 3.11% and 3.66% for GSSG, respectively. Mean recoveries of three different spike-in levels (low, medium, high) of GSSG and GS-NEM were above 92%. Finally, the method was applied to the determination of changes in the GSH/GSSG ratio either in response to oxidative stress in cells lacking one or both monocarboxylate transporters MCT1 and MCT4, or in adaptation to the NADPH (nicotinamide adenine dinucleotide phosphate) consuming production of D-2-hydroxyglutarate in cells carrying mutations in the isocitrate dehydrogenase genes IDH1 and IDH2.
Collapse
Affiliation(s)
- Xueni Sun
- Institute of Functional Genomics, University of Regensburg, Am BioPark 9, 93053 Regensburg, Germany; (X.S.); (R.S.B.); (P.H.); (P.J.O.)
| | - Raffaela S. Berger
- Institute of Functional Genomics, University of Regensburg, Am BioPark 9, 93053 Regensburg, Germany; (X.S.); (R.S.B.); (P.H.); (P.J.O.)
| | - Paul Heinrich
- Institute of Functional Genomics, University of Regensburg, Am BioPark 9, 93053 Regensburg, Germany; (X.S.); (R.S.B.); (P.H.); (P.J.O.)
| | - Ibtissam Marchiq
- University Côte d’Azur (IRCAN), CNRS-INSERM, Centre A. Lacassagne, 06189 Nice, France; (I.M.); (J.P.)
| | - Jacques Pouyssegur
- University Côte d’Azur (IRCAN), CNRS-INSERM, Centre A. Lacassagne, 06189 Nice, France; (I.M.); (J.P.)
- Department of Medical Biology, Centre Scientifique de Monaco, CSM, 98000 Monaco, Monaco
| | - Kathrin Renner
- Department of Internal Medicine III, University Hospital Regensburg, 93042 Regensburg, Germany;
| | - Peter J. Oefner
- Institute of Functional Genomics, University of Regensburg, Am BioPark 9, 93053 Regensburg, Germany; (X.S.); (R.S.B.); (P.H.); (P.J.O.)
| | - Katja Dettmer
- Institute of Functional Genomics, University of Regensburg, Am BioPark 9, 93053 Regensburg, Germany; (X.S.); (R.S.B.); (P.H.); (P.J.O.)
- Correspondence: ; Tel.: +49-941-943-5015
| |
Collapse
|
4
|
Luciano-Mateo F, Cabré N, Fernández-Arroyo S, Baiges-Gaya G, Hernández-Aguilera A, Rodríguez-Tomàs E, Mercado-Gómez M, Menendez JA, Camps J, Joven J. Chemokine (C-C motif) ligand 2 gene ablation protects low-density lipoprotein and paraoxonase-1 double deficient mice from liver injury, oxidative stress and inflammation. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1555-1566. [PMID: 30905786 DOI: 10.1016/j.bbadis.2019.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/11/2019] [Accepted: 03/19/2019] [Indexed: 02/07/2023]
Abstract
The risk of non-alcoholic fatty liver disease increases with obesity. Vulnerability to oxidative stress and/or inflammation represents a crucial step in non-alcoholic fatty liver disease progression through abnormal metabolic responses. In this study, we investigated the role of CCL2 gene ablation in mice that were double deficient in low density lipoprotein receptor and in paraoxonase-1. Mass spectrometry methods were used to assess the liver metabolic response in mice fed either regular chow or a high-fat diet. Dietary fat caused liver steatosis, oxidative stress and the accumulation of pro-inflammatory macrophages in the livers of double deficient mice. We observed alterations in energy metabolism-related pathways and in metabolites associated with the methionine cycle and the glutathione reduction pathway. This metabolic response was associated with impaired autophagy. Conversely, when we established CCL2 deficiency, histologic features of fatty liver disease were abrogated, hepatic liver oxidative stress decreased, and anti-inflammatory macrophage marker expression levels increased. These changes were associated with the normalization of metabolic disturbances and increased lysosome-associated membrane protein 2, expression, which suggests enhanced chaperone-mediated autophagy. This study demonstrates that CCL2 is a key molecule for the development of metabolic and histological alterations in the liver of mice sensitive to the development of hyperlipidemia and hepatic steatosis, a finding with potential to identify new therapeutic targets in liver diseases.
Collapse
Affiliation(s)
- Fedra Luciano-Mateo
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Noemí Cabré
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Salvador Fernández-Arroyo
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Gerard Baiges-Gaya
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Anna Hernández-Aguilera
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Elisabet Rodríguez-Tomàs
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Maria Mercado-Gómez
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
| | - Javier A Menendez
- Program Against Cancer Therapeutic Resistance (ProCURE), Metabolism and Cancer Group, Catalan Institute of Oncology, Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Jordi Camps
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain.
| | - Jorge Joven
- Universitat Rovira i Virgili, Department of Medicine and Surgery, Reus, Spain; Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Reus, Spain; The Campus of International Excellence Southern Catalonia, Tarragona, Spain.
| |
Collapse
|
5
|
Claeson AS, Gouveia-Figueira S, Stenlund H, Johansson AI. A standardized protocol for comparable analysis of GSH/GSSG by UHPLC-ESI-MSMS for human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1104:67-72. [DOI: 10.1016/j.jchromb.2018.11.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/15/2018] [Accepted: 11/06/2018] [Indexed: 11/25/2022]
|
6
|
Gil A, van der Pol A, van der Meer P, Bischoff R. LC-MS analysis of key components of the glutathione cycle in tissues and body fluids from mice with myocardial infarction. J Pharm Biomed Anal 2018; 160:289-296. [DOI: 10.1016/j.jpba.2018.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 12/11/2022]
|
7
|
Bravo-Veyrat S, Hopfgartner G. High-throughput liquid chromatography differential mobility spectrometry mass spectrometry for bioanalysis: determination of reduced and oxidized form of glutathione in human blood. Anal Bioanal Chem 2018; 410:7153-7161. [DOI: 10.1007/s00216-018-1318-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 08/06/2018] [Accepted: 08/10/2018] [Indexed: 12/15/2022]
|
8
|
Florholmen-Kjær Å, Goll R, Fuskevåg OM, Nygård IE, Paulssen RH, Revhaug A, Mortensen KE. The impact of partial hepatectomy on oxidative state in the liver remnant - An in vivo swine model. Redox Biol 2016; 9:15-21. [PMID: 27262110 PMCID: PMC4898964 DOI: 10.1016/j.redox.2016.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/18/2016] [Accepted: 05/23/2016] [Indexed: 11/17/2022] Open
Abstract
Background Previous studies on oxidative state after partial hepatectomy (PHx) report conflicting data on levels of glutathione (GSH) and are mainly presented in rodent models by methodology less sensitive than the present technologies. The current swine model presents GSH levels and the following genetic response post-PHx, utilizing an analytical platform more sensitive and precise than earlier available. Method Twelve pigs were randomized to a PHx- and a control group (n=6 in each). The PHx group had a 60% hepatectomy. Serial in vivo liver biopsies during 12 h of anaesthesia post-PHx were analyzed for GSH by liquid chromatography mass spectrometry (LC-MS/MS). Transcriptional alterations of genes (GS, GCLM, GCLC, GR, HGF, NFE2L2, TGFβ1) regulating GSH synthesis were measured by real-time PCR. Results No difference was detected between the GSH levels in the PHx- and the control group during the experiment (P=0.247). Still, decreased gene expression of GS (P=0.026) and NFE2L2 (P=0.014) the first nine hours, and a decrease of TGFβ1 (P=0.029) the first seven hours post-PHx was seen in the liver remnant. Conclusion The results show that the liver has an extended capacity to maintain GSH homeostasis during major stress and parenchymal loss, even at the early onset of such trauma. This observation was not explained by increased expression of key genes in GSH pathways. Consequently, the results indicate an inherent compensatory capacity to maintain GSH homeostasis in the reduced organ. The levels of Glutathione are maintained after a 60% hepatectomy in a swine study. Oxidative state is analyzed after partial hepatectomy using mass spectrometry. Glutathione is analyzed after partial hepatectomy using mass spectrometry. The liver has extended capacity to remain GSH homeostasis after partial hepatectomy. Glutathione in liver tissue is analyzed after partial hepatectomy in a swine model.
Collapse
Affiliation(s)
- Åse Florholmen-Kjær
- Laboratory of Surgical Research, Institute of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway; Department of Digestive Surgery, University Hospital North Norway, Tromsø, Norway.
| | - Rasmus Goll
- Department of Gastroenterology, University Hospital North Norway, Tromsø, Norway; Research group of Gastroenterology & Nutrition, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Ole-Martin Fuskevåg
- Department of Laboratory Medicine, University Hospital North Norway, Tromsø, Norway
| | - Ingvild Engdal Nygård
- Laboratory of Surgical Research, Institute of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway
| | - Ruth H Paulssen
- Research group of Gastroenterology & Nutrition, UiT-The Arctic University of Norway, Tromsø, Norway; Genomics Support Center Tromsø, UiT-The Arctic University of Tromsø, Norway
| | - Arthur Revhaug
- Laboratory of Surgical Research, Institute of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway; Department of Digestive Surgery, University Hospital North Norway, Tromsø, Norway
| | - Kim Erlend Mortensen
- Laboratory of Surgical Research, Institute of Clinical Medicine, UiT-The Arctic University of Norway, Tromsø, Norway; Department of Digestive Surgery, University Hospital North Norway, Tromsø, Norway
| |
Collapse
|