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Kumar V, Deshpande N, Parekh M, Wong R, Ashraf S, Zahid M, Hui H, Miall A, Kimpton S, Price MO, Price FW, Gonzalez FJ, Rogan E, Jurkunas UV. Estrogen genotoxicity causes preferential development of Fuchs endothelial corneal dystrophy in females. Redox Biol 2024; 69:102986. [PMID: 38091879 PMCID: PMC10716776 DOI: 10.1016/j.redox.2023.102986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/01/2023] [Accepted: 12/03/2023] [Indexed: 01/23/2024] Open
Abstract
Fuchs endothelial corneal dystrophy (FECD) is a genetically complex, age-related, female-predominant disorder characterized by loss of post-mitotic corneal endothelial cells (CEnCs). Ultraviolet-A (UVA) light has been shown to recapitulate the morphological and molecular changes seen in FECD to a greater extent in females than males, by triggering CYP1B1 upregulation in females. Herein, we investigated the mechanism of greater CEnC susceptibility to UVA in females by studying estrogen metabolism in response to UVA in the cornea. Loss of NAD(P)H quinone oxidoreductase 1 (NQO1) resulted in increased production of estrogen metabolites and mitochondrial-DNA adducts, with a higher CEnC loss in Nqo1-/- female compared to wild-type male and female mice. The CYP1B1 inhibitors, trans-2,3',4,5'-tetramethoxystilbene (TMS) and berberine, rescued CEnC loss. Injection of wild-type male mice with estrogen (E2; 17β-estradiol) increased CEnC loss, followed by increased production of estrogen metabolites and mitochondrial DNA (mtDNA) damage, not seen in E2-treated Cyp1b1-/-male mice. This study demonstrates that the endo-degenerative phenotype is driven by estrogen metabolite-dependent CEnC loss that is exacerbated in the absence of NQO1; thus, explaining the mechanism accounting for the higher incidence of FECD in females. The mitigation of estrogen-adduct production by CYP1B1 inhibitors could serve as a novel therapeutic strategy for FECD.
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Affiliation(s)
- Varun Kumar
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Neha Deshpande
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Mohit Parekh
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Raymond Wong
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Shazia Ashraf
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Muhammad Zahid
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, 68198-4388, USA
| | - Hanna Hui
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Annie Miall
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Sylvie Kimpton
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA
| | - Marianne O Price
- Price Vision Group and Cornea Research Foundation of America, Indianapolis, IN, USA
| | - Francis W Price
- Price Vision Group and Cornea Research Foundation of America, Indianapolis, IN, USA
| | - Frank J Gonzalez
- Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Eleanor Rogan
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, 68198-4388, USA
| | - Ula V Jurkunas
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, 02115, USA.
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Ouyang L, He T, Xing Y. Park7 protects retinal ganglion cells and promotes functional preservation after optic nerve crush via regulation of the Nrf2 signaling pathway. Graefes Arch Clin Exp Ophthalmol 2023; 261:3489-3502. [PMID: 37199801 DOI: 10.1007/s00417-023-06099-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/19/2023] [Accepted: 05/02/2023] [Indexed: 05/19/2023] Open
Abstract
PURPOSE We aim to investigate the effect of Park7 on mice RGC survival and function following optic nerve crush (ONC), and to explore its potential mechanism. METHODS Wild-type male C57BL/6J mice were subjected to optic nerve crush. Six weeks before ONC, mice received rAAV-shRNA (Park7)-EGFP or rAAV-EGFP intravitreally. Western blotting was used to detect Park7 levels. RGC survival was measured using immunofluorescence. Retinal cell apoptosis was detected using terminal deoxynucleotidyl transferase nick-end-labelling. An electroretinogram (ERG) and the optomotor response (OMR) were used to assess RGC function. Kelch-like ECH-associated protein 1 (Keap1), nuclear factor erythroid 2-related factor (Nrf2), and heme oxygenase 1 (HO-1) levels were assessed using western blotting. RESULTS ONC injury increased the relative expression of Park7 significantly and decreased RGC survival, the amplitude of the photopic negative response (PhNR), and OMR. Intravitreal injection of rAAV-shRNA(Park7)-EGFP downregulated Park7 expression and was clearly demonstrated by the green fluorescence protein in many retinal layers. Moreover, Park7 downregulation aggravated the decrease in RGC survival and amplitude of PhNR as well as the visual acuity after ONC. However, inhibition of Park7 significantly increased Keap1 levels, decreased the total and nuclear Nrf2 levels, and reduced HO-1 levels. CONCLUSIONS Park7 downregulation enhanced RGC injury and decreased retinal electrophysiological response and OMR after ONC in mice via the Keap1-Nrf2-HO-1 signaling pathway. Park7 may have neuroprotective effects and could represent a novel way to treat optic neuropathy.
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Affiliation(s)
- Lingyi Ouyang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China.
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Li Y, Chen T, Xue Y, Wang Y, Peng L, Wang C, Yu S. DJ-1 inhibits ferroptosis in cerebral ischemia-reperfusion via ATF4/HSPA5 pathway. Neurochem Int 2023; 171:105628. [PMID: 37820776 DOI: 10.1016/j.neuint.2023.105628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/24/2023] [Accepted: 10/08/2023] [Indexed: 10/13/2023]
Abstract
DJ-1 has been confirmed to have neuroprotective effects. Ferroptosis is an iron-dependent programmed cell death mode associated with ischemic stroke. The ATF4/HSPA5 pathway has been shown to play an important role in the regulation of ferroptosis. To explore the role and possible mechanism of DJ-1 in regulating ferroptosis in cerebral ischemia-reperfusion injury. In this study, Middle cerebral artery occlusion/reperfusion (MCAO/R) was used to simulate cerebral ischemia-reperfusion injury in vivo. Detected ferroptosis-related indicators and observed mitochondrial morphology in brain tissue using transmission electron microscopy. ATF4 was subsequently interfered to observe the effect of DJ-1 on ferroptosis. The results suggest that after interfering with DJ-1, the iron content and malondialdehyde (MDA) content of ferroptosis-related indicators increased, the GSH content decreased, and the mitochondrial structure was severely damaged. We then found that DJ-1 attenuated ferroptosis following ATF4 reduction. In this study, we found that the neuroprotective effect of DJ-1 is related to the inhibition of ferroptosis, and its molecular mechanism is closely related to the ATF4/HSPA5 pathway, which may play a key role in inhibiting brain ischemia-reperfusion (I/R) ferroptosis.
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Affiliation(s)
- Yumei Li
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, Chengdu Women's &children's Central Hospital, 610000, Chengdu, China
| | - Tianyi Chen
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, The First Affifiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Ying Xue
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, The First Affifiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yuan Wang
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, The First Affifiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Li Peng
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, The First Affifiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Chenglong Wang
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, 400021, China
| | - Shanshan Yu
- Department of Pathology, College of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, 400016, China; Department of Pathology, The First Affifiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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ElGamal RZ, Tadros MG, Menze ET. Linagliptin counteracts rotenone's toxicity in non-diabetic rat model of Parkinson's disease: Insights into the neuroprotective roles of DJ-1, SIRT-1/Nrf-2 and implications of HIF1-α. Eur J Pharmacol 2023; 941:175498. [PMID: 36623635 DOI: 10.1016/j.ejphar.2023.175498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/04/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
While all current therapies' main focus is enhancing dopaminergic effects and remission of symptoms, delaying Parkinson's disease (PD) progression remains a challenging mission. Linagliptin, a Dipeptidyl Peptidase-4 (DPP-4) Inhibitor, exhibited neuroprotection in various neurodegenerative diseases. This study aims to evaluate the neuroprotective effects of Linagliptin in a rotenone-induced rat model of PD and investigate the possible underlying mechanisms of Linagliptin's actions. The effects of two doses of Linagliptin (5 and 10 mg/kg) on spontaneous locomotion, catalepsy, coordination and balance, and histology were assessed. Then, after Linagliptin showed promising results, it was further tested for its potential anti-inflammatory, antiapoptotic effects, and different pathways for oxidative stress. Linagliptin prevented rotenone-induced motor deficits and histological damage. Besides, it significantly inhibited the rotenone-induced increase in pro-inflammatory cytokines: Tumor Necrosis Factor-α (TNF-α) and Interleukin-6 (IL-6) and decrease in caspase 3 levels. These effects were associated with induction in the levels of Protein deglycase also known as DJ-1, Hypoxia-inducible factor 1-alpha (HIF-1α), potentiation in the Sirtuin 1 (SIRT-1)/Nuclear factor erythroid-2-related factor 2 (Nrf-2)/Heme oxygenase-1 (HO-1) pathway, and an increase in the antioxidant activity of catalase which provided neuroprotection to the neurons from rotenone-induced PD. Collectively, these results suggest that Linagliptin might be a suitable candidate for the management of PD.
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Affiliation(s)
- Rania Z ElGamal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Sinai University - Kantara Branch, Ismailia, 41636, Egypt.
| | - Mariane G Tadros
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Esther T Menze
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Zhang X, Qiu J, Huang F, Shan K, Zhang C. Type 2 Diabetes Mellitus Makes Corneal Endothelial Cells Vulnerable to Ultraviolet A-Induced Oxidative Damage Via Decreased DJ-1/Nrf2/NQO1 Pathway. Invest Ophthalmol Vis Sci 2022; 63:25. [DOI: 10.1167/iovs.63.12.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Xueling Zhang
- Department of Ophthalmology, Eye Ear Nose and Throat Hospital of Fudan University, Shanghai, China
- Department of Ophthalmology, Shanghai Medical College, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Jini Qiu
- Department of Ophthalmology, Eye Ear Nose and Throat Hospital of Fudan University, Shanghai, China
- Department of Ophthalmology, Shanghai Medical College, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Feifei Huang
- Department of Ophthalmology, Eye Ear Nose and Throat Hospital of Fudan University, Shanghai, China
- Department of Ophthalmology, Shanghai Medical College, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Kun Shan
- Department of Ophthalmology, Eye Ear Nose and Throat Hospital of Fudan University, Shanghai, China
- Department of Ophthalmology, Shanghai Medical College, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
| | - Chaoran Zhang
- Department of Ophthalmology, Eye Ear Nose and Throat Hospital of Fudan University, Shanghai, China
- Department of Ophthalmology, Shanghai Medical College, Fudan University, Shanghai, China
- NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China
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Bhattacharyya S, Sturgis J, Maminishkis A, Miller SS, Bonilha VL. Oxidation of DJ-1 Cysteines in Retinal Pigment Epithelium Function. Int J Mol Sci 2022; 23:ijms23179938. [PMID: 36077335 PMCID: PMC9456479 DOI: 10.3390/ijms23179938] [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: 06/14/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
The retina and RPE cells are regularly exposed to chronic oxidative stress as a tissue with high metabolic demand and ROS generation. DJ-1 is a multifunctional protein in the retina and RPE that has been shown to protect cells from oxidative stress in several cell types robustly. Oxidation of DJ-1 cysteine (C) residues is important for its function under oxidative conditions. The present study was conducted to analyze the impact of DJ-1 expression changes and oxidation of its C residues on RPE function. Monolayers of the ARPE-19 cell line and primary human fetal RPE (hfRPE) cultures were infected with replication-deficient adenoviruses to investigate the effects of increased levels of DJ-1 in these monolayers. Adenoviruses carried the full-length human DJ-1 cDNA (hDJ) and mutant constructs of DJ-1, which had all or each of its three C residues individually mutated to serine (S). Alternatively, endogenous DJ-1 levels were decreased by transfection and transduction with shPARK7 lentivirus. These monolayers were then assayed under baseline and low oxidative stress conditions. The results were analyzed by immunofluorescence, Western blot, RT-PCR, mitochondrial membrane potential, and viability assays. We determined that decreased levels of endogenous DJ-1 levels resulted in increased levels of ROS. Furthermore, we observed morphological changes in the mitochondria structure of all the RPE monolayers transduced with all the DJ-1 constructs. The mitochondrial membrane potential of ARPE-19 monolayers overexpressing all DJ-1 constructs displayed a significant decrease, while hfRPE monolayers only displayed a significant decrease in their ΔΨm when overexpressing the C2S mutation. Viability significantly decreased in ARPE-19 cells transduced with the C53S construct. Our data suggest that the oxidation of C53 is crucial for regulating endogenous levels of ROS and viability in RPE cells.
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Affiliation(s)
| | - Johnathon Sturgis
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Arvydas Maminishkis
- National Eye Institute, National Institutes of Health, Section on Epithelial and Retinal Physiology and Disease, Bethesda, MD 20892, USA
| | - Sheldon S. Miller
- National Eye Institute, National Institutes of Health, Section on Epithelial and Retinal Physiology and Disease, Bethesda, MD 20892, USA
| | - Vera L. Bonilha
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Department of Ophthalmology, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH 44195, USA
- Correspondence: ; Tel.: +1-216-445-7690
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Chalimeswamy A, Thanuja MY, Ranganath SH, Pandya K, Kompella UB, Srinivas SP. Oxidative Stress Induces a Breakdown of the Cytoskeleton and Tight Junctions of the Corneal Endothelial Cells. J Ocul Pharmacol Ther 2021; 38:74-84. [PMID: 34818079 DOI: 10.1089/jop.2021.0037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Purpose: To investigate the impact of oxidative stress, which is a hallmark of Fuchs dystrophy, on the barrier function of the corneal endothelial cells. Methods: Experiments were carried out with cultured bovine and porcine corneal endothelial cells. For oxidative stress, cells were supplemented with riboflavin (Rf) and exposed to UV-A (15-30 min) to induce Type-1 photochemical reactions that release H2O2. The effect of the stress on the barrier function was assayed by transendothelial electrical resistance (TER) measurement. In addition, the associated changes in the organization of the microtubules, perijunctional actomyosin ring (PAMR), and ZO-1 were evaluated by immunocytochemistry, which was also repeated after direct exposure to H2O2 (100 μM, 1 h). Results: Exposure to H2O2 led to the disassembly of microtubules and the destruction of PAMR. In parallel, the contiguous locus of ZO-1 was disrupted, marking a loss of barrier integrity. Accordingly, a sustained loss in TER was induced when cells in the Rf-supplemented medium were exposed to UV-A. However, the addition of catalase (7,000 U/mL) to rapidly decompose H2O2 limited the loss in TER. Furthermore, the adverse effects on microtubules, PAMR, and ZO-1 were suppressed by including catalase, ascorbic acid (1 mM; 30 min), or pretreatment with p38 MAP kinase inhibitor (SB-203580; 10 μM, 1 h). Conclusions: Acute oxidative stress induces microtubule disassembly by a p38 MAP kinase-dependent mechanism, leading to the destruction of PAMR and loss of barrier function. The response to oxidative stress is reminiscent of the (TNF-α)-induced breakdown of barrier failure in the corneal endothelium.
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Affiliation(s)
- Anupama Chalimeswamy
- Department of Biotechnology, Siddaganga Institute of Technology, Tumakuru, India.,Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology, Tumakuru, India
| | | | - Sudhir H Ranganath
- Bio-INvENT Lab, Department of Chemical Engineering, Siddaganga Institute of Technology, Tumakuru, India
| | - Kaveet Pandya
- School of Optometry, Indiana University, Bloomington, Indiana, USA
| | - Uday B Kompella
- Pharmaceutical Sciences, University of Colorado, Aurora, Colorado, USA
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Viberg A, Westin IM, Golovleva I, Byström B. TCF4 trinucleotide repeat expansion in Swedish cases with Fuchs' endothelial corneal dystrophy. Acta Ophthalmol 2021; 100:541-548. [PMID: 34644448 DOI: 10.1111/aos.15032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/22/2021] [Indexed: 12/27/2022]
Abstract
PURPOSE Fuchs' endothelial corneal dystrophy (FECD) has been considered a genetically heterogeneous disease but is increasingly associated with the transcription factor 4 (TCF4) gene. This study investigates the prevalence of the cytosine-thymine-guanine (CTG)n repeat expansion in TCF4 among FECD patients in northern Sweden coupled to the phenotype. METHODS Blood samples were collected from 85 FECD cases at different stages. Short tandem repeat PCR and triplet repeat-primed PCR were applied in order to determine TCF4 (CTG)n genotype. RESULTS A (CTG)n repeat expansion (n > 50) in TCF4 was identified in 76 of 85 FECD cases (89.4%) and in four of 102 controls (3.9%). The median (CTG)n repeat length was 81 (IQR 39.3) in mild FECD and 87 (IQR 13.0) in severe FECD (p = 0.01). A higher number of (CTG)n repeats in an expanded TCF4 allele increased the probability of severe FECD. Other ocular surgery was overrepresented in FECD cases without a (CTG)n repeat expansion (44.4%, n = 4) compared with 3.9% (n = 3) in FECD cases with an (CTG)n repeat expansion (p < 0.001). CONCLUSION In northern Sweden, the FECD phenotype is associated with (CTG)n expansion in the TCF4 gene, with nearly 90% of patients being hetero- or homozygous for (CTG)n expansion over 50 repeats. Furthermore, the severity of FECD was associated with the repeat length in the TCF4 gene. Ocular surgery might act as an environmental factor explaining the clinical disease in FECD without a repeat expansion in TCF4.
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Affiliation(s)
- Andreas Viberg
- Department of Clinical Sciences/Ophthalmology Umeå University Umeå Sweden
| | - Ida Maria Westin
- Department of Medical Biosciences/Medical and Clinical Genetics Umeå University Umeå Sweden
| | - Irina Golovleva
- Department of Medical Biosciences/Medical and Clinical Genetics Umeå University Umeå Sweden
| | - Berit Byström
- Department of Clinical Sciences/Ophthalmology Umeå University Umeå Sweden
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Cytoprotective Mechanisms of DJ-1: Implications in Cardiac Pathophysiology. Molecules 2021; 26:molecules26133795. [PMID: 34206441 PMCID: PMC8270312 DOI: 10.3390/molecules26133795] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 11/17/2022] Open
Abstract
DJ-1 was originally identified as an oncogene product while mutations of the gene encoding DJ-1/PARK7 were later associated with a recessive form of Parkinson's disease. Its ubiquitous expression and diversity of function suggest that DJ-1 is also involved in mechanisms outside the central nervous system. In the last decade, the contribution of DJ-1 to the protection from ischemia-reperfusion injury has been recognized and its involvement in the pathophysiology of cardiovascular disease is attracting increasing attention. This review describes the current and gaps in our knowledge of DJ-1, focusing on its role in regulating cardiovascular function. In parallel, we present original data showing an association between increased DJ-1 expression and antiapoptotic and anti-inflammatory markers following cardiac and vascular surgical procedures. Future studies should address DJ-1's role as a plausible novel therapeutic target for cardiovascular disease.
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10
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Cheng L, Zhang W. DJ-1 affects oxidative stress and pyroptosis in hippocampal neurons of Alzheimer's disease mouse model by regulating the Nrf2 pathway. Exp Ther Med 2021; 21:557. [PMID: 33850529 PMCID: PMC8027751 DOI: 10.3892/etm.2021.9989] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 03/05/2020] [Indexed: 12/16/2022] Open
Abstract
Studies have confirmed that DJ-1 is associated with diseases associated with the nervous system, including Alzheimer's disease (AD). However, the role of DJ-1 in the pathogenesis of AD has not been clarified. To investigate the effect of DJ-1 on brain tissue damage and cognitive function in AD mice and its possible mechanism, 5XFAD transgenic mice were used as AD model mice and DJ-1 in the brain was overexpressed by transfection of a lentiviral containing a specific targeting DJ-1 gene into the bilateral hippocampus of mice. Following lentivirus infection, the Morris water maze test was performed to assess the cognitive function of the mice. When the behavioral evaluation was completed, the brain tissue of the mouse was examined. Pathological changes were observed by hematoxylin-eosin staining. The levels of relevant indicators were analyzed by reverse transcription-quantitative PCR, ELISA and western blotting. Bilateral hippocampal injection of a lentivirus containing DJ-1 significantly increased the expression of DJ-1 in the hippocampus of 5XFAD transgenic mice. Overexpression of DJ-1 in the brain could ameliorate brain tissue damage, β-amyloid protein (Aβ) deposition and cognitive function in 5XFAD mice. Compared with the sham group, the reactive oxygen species activity and malondialdehyde content in the brain tissue of DJ-1 overexpressing 5XFAD mice were significantly decreased, while the superoxide dismutase activity was significantly increased (P<0.05). In addition, DJ-1 overexpression decreased the expression of caspase-1 and the levels of interleukin (IL) 1β and IL-18 in the hippocampus while ameliorating the death of hippocampal neurons in 5XFAD mice and without affecting the expression of caspase-3. Overexpression of DJ-1 resulted in a significant decrease in nuclear factor erythroid 2-related factor 2 (Nrf2) protein expression in the cytoplasmic while significantly increasing the expression of Nrf2 in the nucleus. Simultaneously, DJ-1 overexpression in the brain inhibited the activation of nanoparticles activate the NLR pyrin domain containing 3 inflammatory bodies in brain tissue. Overexpression of DJ-1 in the brain could repair brain tissue damage, Aβ deposition and cognitive function in 5XFAD mice, and its mechanism may be associated with an inhibition of oxidative stress and neuronal pyroptosis by regulating the Nrf2 signaling pathway.
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Affiliation(s)
- Lin Cheng
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
| | - Wei Zhang
- Zhang Zhongjing College of Chinese Medicine, Nanyang Institute of Technology, Nanyang, Henan 473004, P.R. China
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11
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White TL, Deshpande N, Kumar V, Gauthier AG, Jurkunas UV. Cell cycle re-entry and arrest in G2/M phase induces senescence and fibrosis in Fuchs Endothelial Corneal Dystrophy. Free Radic Biol Med 2021; 164:34-43. [PMID: 33418109 PMCID: PMC7897316 DOI: 10.1016/j.freeradbiomed.2020.12.445] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022]
Abstract
Fuchs endothelial corneal dystrophy (FECD) is an age-related disease whereby progressive loss of corneal endothelial cells (CEnCs) leads to loss of vision. There is currently a lack of therapeutic interventions as the etiology of the disease is complex, with both genetic and environmental factors. In this study, we have provided further insights into the pathogenesis of the disease, showing a causal relationship between senescence and endothelial-mesenchymal transition (EMT) using in vitro and in vivo models. Ultraviolet A (UVA) light induced EMT and senescence in CEnCs. Senescent cells were arrested in G2/M phase of the cell cycle and responsible for the resulting profibrotic phenotype. Inhibiting ATR signaling and subsequently preventing G2/M arrest attenuated EMT. In vivo, UVA irradiation induced cell cycle re-entry in post mitotic CEnCs, resulting in senescence and fibrosis at 1- and 2-weeks post-UVA. Selectively eliminating senescent cells using the senolytic cocktail of dasatinib and quercetin attenuated UVA-induced fibrosis, highlighting the potential for a new therapeutic intervention for FECD.
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Affiliation(s)
- Tomas L White
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, MA, 02114, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Neha Deshpande
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, MA, 02114, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Varun Kumar
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, MA, 02114, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Alex G Gauthier
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, MA, 02114, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA
| | - Ula V Jurkunas
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Boston, MA, 02114, USA; Department of Ophthalmology, Harvard Medical School, Boston, MA, 02114, USA.
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12
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Toxic effect of titanium dioxide nanoparticles on corneas in vitro and in vivo. Aging (Albany NY) 2021; 13:5020-5033. [PMID: 33534781 PMCID: PMC7950276 DOI: 10.18632/aging.202412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are widely used in a variety of areas. However, TiO2 NPs possess cytotoxicity which involves oxidative stress. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a key molecule preventing cells from oxidative stress damage. In the current study, we explored the effect of Nrf2 signaling pathway in TiO2 NPs-induced corneal endothelial cell injury. Firstly, we found TiO2 NPs inhibited proliferation and damaged morphology and mitochondria of mouse primary corneal endothelial cells. Moreover, TiO2 NPs-induced oxidative damage of mouse primary corneal endothelial cells was inhibited by antioxidant NAC by evaluating production of reactive oxygen species (ROS), malondialdehyde (MDA), and activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). Next, flow cytometry analysis showed TiO2 NPs promoted apoptosis and cell cycle G2/M phase arrest of mouse primary corneal endothelial cells. Further investigation suggested that Nrf2 signaling pathway activation and the downregulation of ZO-1, β-catenin and Na-K-ATPase were involved in TiO2 NPs-induced mouse primary corneal endothelial cell injury. Our research highlighted the toxic effect of TiO2 NPs on corneas in vitro and in vivo, providing an alternative insight into TiO2 NPs-induced corneal endothelial cell injury.
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13
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Morelli P, Gaspari M, Gabriele C, Dastoli S, Bennardo L, Pavel AB, Patruno C, Del Duca E, Nisticò SP. Proteomic analysis from skin swabs reveals a new set of proteins identifying skin impairment in atopic dermatitis. Exp Dermatol 2021; 30:811-819. [PMID: 33394542 DOI: 10.1111/exd.14276] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 12/11/2020] [Accepted: 12/28/2020] [Indexed: 12/13/2022]
Abstract
Atopic Dermatitis (AD) is a common inflammatory skin disease characterized by skin and systemic inflammation, and barrier dysfunction. Herein, we investigate the proteomic profile of AD skin barrier to identify a unique signature with an easy-performed sampling approach. We enrolled 8 moderate-to-severe AD patients and 8 age- and gender-matched healthy controls. Swabs were obtained from non-lesional skin of retroauricular area and antecubital fold. Peptide mixtures obtained through protein precipitation and in-solution digestion were analysed using NanoLC-MS/MS. Label-free quantification and statistical analysis were conducted in MaxQuant and Perseus. Bioinformatics analysis was performed using Gene Ontology and STRING. We identified 908 proteins and 35 differentially expressed proteins were selected (fold change 2, FDR < 0.05). Particularly, AD skin showed downregulation of skin hydration factors, structural and epidermal proteins, abnormalities in protease-proteasome complex and lipid metabolism profile. Imbalance of antioxidant and inflammatory processes, along with TDRD15 upregulation was also observed. Our result showed partial overlap with skin biopsy/tape-strips studies, showing the reliability of our sampling approach which could be an easier method of detection of hallmark barrier proteins in AD. Furthermore, we displayed a new differentially expressed set of proteins, not yet explored in AD which can have a potential role in AD pathomechanisms.
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Affiliation(s)
- Paola Morelli
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Marco Gaspari
- Department of Experimental and Clinical Medicine, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Caterina Gabriele
- Department of Experimental and Clinical Medicine, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Stefano Dastoli
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Luigi Bennardo
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Ana Brandusa Pavel
- Department of Biomedical Engineering, University of Mississippi, University, MS, USA
| | - Cataldo Patruno
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Ester Del Duca
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
| | - Steven P Nisticò
- Department of Health Science, 'Magna Graecia' University of Catanzaro, Catanzaro, Italy
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14
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Ong Tone S, Kocaba V, Böhm M, Wylegala A, White TL, Jurkunas UV. Fuchs endothelial corneal dystrophy: The vicious cycle of Fuchs pathogenesis. Prog Retin Eye Res 2021; 80:100863. [PMID: 32438095 PMCID: PMC7648733 DOI: 10.1016/j.preteyeres.2020.100863] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 04/05/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022]
Abstract
Fuchs endothelial corneal dystrophy (FECD) is the most common primary corneal endothelial dystrophy and the leading indication for corneal transplantation worldwide. FECD is characterized by the progressive decline of corneal endothelial cells (CECs) and the formation of extracellular matrix (ECM) excrescences in Descemet's membrane (DM), called guttae, that lead to corneal edema and loss of vision. FECD typically manifests in the fifth decades of life and has a greater incidence in women. FECD is a complex and heterogeneous genetic disease where interaction between genetic and environmental factors results in cellular apoptosis and aberrant ECM deposition. In this review, we will discuss a complex interplay of genetic, epigenetic, and exogenous factors in inciting oxidative stress, auto(mito)phagy, unfolded protein response, and mitochondrial dysfunction during CEC degeneration. Specifically, we explore the factors that influence cellular fate to undergo apoptosis, senescence, and endothelial-to-mesenchymal transition. These findings will highlight the importance of abnormal CEC-DM interactions in triggering the vicious cycle of FECD pathogenesis. We will also review clinical characteristics, diagnostic tools, and current medical and surgical management options for FECD patients. These new paradigms in FECD pathogenesis present an opportunity to develop novel therapeutics for the treatment of FECD.
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Affiliation(s)
- Stephan Ong Tone
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Viridiana Kocaba
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Myriam Böhm
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Adam Wylegala
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Tomas L White
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Ula V Jurkunas
- Cornea Center of Excellence, Schepens Eye Research Institute, Harvard Medical School, Boston, MA, United States; Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States.
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15
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Lovatt M, Kocaba V, Hui Neo DJ, Soh YQ, Mehta JS. Nrf2: A unifying transcription factor in the pathogenesis of Fuchs' endothelial corneal dystrophy. Redox Biol 2020; 37:101763. [PMID: 33099215 PMCID: PMC7578533 DOI: 10.1016/j.redox.2020.101763] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/19/2022] Open
Abstract
Nuclear factor, erythroid 2 like 2 (Nrf2), is an oxidative stress induced transcription factor that regulates cytoprotective gene expression. Thus, Nrf2 is essential for cellular redox homeostasis. Loss or dysregulation of Nrf2 expression has been implicated in the pathogenesis of degenerative diseases, including diseases of the cornea. One of the most common diseases of the cornea in which Nrf2 is implicated is Fuchs’ endothelial cornea dystrophy (FECD). FECD is the leading indication for corneal transplantation; and is associated with a loss of corneal endothelial cell (CEC) function. In this review, we propose that Nrf2 is an essential regulator of CEC function. Furthermore, we demonstrate that deficiency of Nrf2 function is a hallmark of FECD. In addition, we advocate that pharmacological targeting of Nrf2 as a possible therapy for FECD.
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Affiliation(s)
- Matthew Lovatt
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore.
| | - Viridiana Kocaba
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore; Netherlands Institute for Innovative Ocular Surgery (NIIOS), Rotterdam, the Netherlands
| | - Dawn Jing Hui Neo
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore
| | - Yu Qiang Soh
- Department of Cornea and External Eye Disease, Singapore National Eye Centre, Singapore
| | - Jodhbir S Mehta
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore; Department of Cornea and External Eye Disease, Singapore National Eye Centre, Singapore; Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore.
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16
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Mencke P, Hanss Z, Boussaad I, Sugier PE, Elbaz A, Krüger R. Bidirectional Relation Between Parkinson's Disease and Glioblastoma Multiforme. Front Neurol 2020; 11:898. [PMID: 32973662 PMCID: PMC7468383 DOI: 10.3389/fneur.2020.00898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 07/13/2020] [Indexed: 12/18/2022] Open
Abstract
Cancer and Parkinson's disease (PD) define two disease entities that include opposite concepts. Indeed, the involved mechanisms are at different ends of a spectrum related to cell survival - one due to enhanced cellular proliferation and the other due to premature cell death. There is increasing evidence indicating that patients with neurodegenerative diseases like PD have a reduced incidence for most cancers. In support, epidemiological studies demonstrate an inverse association between PD and cancer. Both conditions apparently can involve the same set of genes, however, in affected tissues the expression was inversely regulated: genes that are down-regulated in PD were found to be up-regulated in cancer and vice versa, for example p53 or PARK7. When comparing glioblastoma multiforme (GBM), a malignant brain tumor with poor overall survival, with PD, astrocytes are dysregulated in both diseases in opposite ways. In addition, common genes, that are involved in both diseases and share common key pathways of cell proliferation and metabolism, were shown to be oppositely deregulated in PD and GBM. Here, we provide an overview of the involvement of PD- and GBM-associated genes in common pathways that are dysregulated in both conditions. Moreover, we illustrate why the simultaneous study of PD and GBM regarding the role of common pathways may lead to a deeper understanding of these still incurable conditions. Eventually, considering the inverse regulation of certain genes in PD and GBM will help to understand their mechanistic basis, and thus to define novel target-based strategies for causative treatments.
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Affiliation(s)
- Pauline Mencke
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
| | - Zoé Hanss
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
| | - Ibrahim Boussaad
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
| | | | - Alexis Elbaz
- Institut de Statistique de l'Université de Paris, Paris, France
| | - Rejko Krüger
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Parkinson Research Clinic, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
- Transversal Translational Medicine, Luxembourg Institute of Health (LIH), Luxembourg, Luxembourg
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17
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Tsai CY, Wu CJ, Wu JCC, Fang C, Huang YH, Dai KY. Redox-active DJ-1 sustains brainstem cardiovascular regulation via maintenance of mitochondrial function during mevinphos intoxication. Neurochem Int 2020; 139:104791. [PMID: 32650030 DOI: 10.1016/j.neuint.2020.104791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/18/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
Abstract
DJ-1 (also known as PARK7) is a redox-active protein that protects against oxidative stress. This study evaluated the hypothesis that DJ-1 sustains brainstem cardiovascular regulation via maintaining mitochondrial function in the rostral ventrolateral medulla (RVLM), a brainstem site known to maintain blood pressure and sympathetic vasomotor tone, during cardiovascular depression elicited by the organophosphate insecticide mevinphos. In Sprague-Dawley rats, intravenous administration of mevinphos (640 μg kg-1) resulted in progressive hypotension, accompanied by an increase (Phase I) followed by a decrease (Phase II) of an experimental index for spontaneous baroreflex-mediated sympathetic vasomotor tone, alongside elevation in mitochondrial superoxide levels in the RVLM. There was concurrent activation of DJ-1 induced by oxidative stress in the RVLM, which was causally and temporally related to translocation of DJ-1 to mitochondria, reduction in mitochondrial membrane potential, increase in cytosolic apoptosis-inducing factor level, and apoptotic cell death in this brainstem site. Loss-of-function by immunoneutralization of DJ-1 in the RVLM significantly exacerbated those biochemical and cellular events, enhanced the progressive hypotension, diminished the increased and augmented the decreased spontaneous baroreflex-mediated sympathetic vasomotor tone respectively during Phases I and II, and heightened lethality during mevinphos intoxication. We conclude that DJ-1 in the RVLM sustains brainstem cardiovascular regulation induced by mevinphos via maintaining mitochondrial function.
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Affiliation(s)
- Ching-Yi Tsai
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC.
| | - Chiung-Ju Wu
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC
| | - Jacqueline C C Wu
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC
| | - Chi Fang
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC
| | - Ya-Hui Huang
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC
| | - Kuang-Yu Dai
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, 83301, Taiwan, ROC
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18
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The interplay between oxidative stress and bioenergetic failure in neuropsychiatric illnesses: can we explain it and can we treat it? Mol Biol Rep 2020; 47:5587-5620. [PMID: 32564227 DOI: 10.1007/s11033-020-05590-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/12/2020] [Indexed: 12/12/2022]
Abstract
Nitro-oxidative stress and lowered antioxidant defences play a key role in neuropsychiatric disorders such as major depression, bipolar disorder and schizophrenia. The first part of this paper details mitochondrial antioxidant mechanisms and their importance in reactive oxygen species (ROS) detoxification, including details of NO networks, the roles of H2O2 and the thioredoxin/peroxiredoxin system, and the relationship between mitochondrial respiration and NADPH production. The second part highlights and identifies the causes of the multiple pathological sequelae arising from self-amplifying increases in mitochondrial ROS production and bioenergetic failure. Particular attention is paid to NAD+ depletion as a core cause of pathology; detrimental effects of raised ROS and reactive nitrogen species on ATP and NADPH generation; detrimental effects of oxidative and nitrosative stress on the glutathione and thioredoxin systems; and the NAD+-induced signalling cascade, including the roles of SIRT1, SIRT3, PGC-1α, the FOXO family of transcription factors, Nrf1 and Nrf2. The third part discusses proposed therapeutic interventions aimed at mitigating such pathology, including the use of the NAD+ precursors nicotinamide mononucleotide and nicotinamide riboside, both of which rapidly elevate levels of NAD+ in the brain and periphery following oral administration; coenzyme Q10 which, when given with the aim of improving mitochondrial function and reducing nitro-oxidative stress in the brain, may be administered via the use of mitoquinone, which is in essence ubiquinone with an attached triphenylphosphonium cation; and N-acetylcysteine, which is associated with improved mitochondrial function in the brain and produces significant decreases in oxidative and nitrosative stress in a dose-dependent manner.
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19
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Zhang L, Wang J, Wang J, Yang B, He Q, Weng Q. Role of DJ-1 in Immune and Inflammatory Diseases. Front Immunol 2020; 11:994. [PMID: 32612601 PMCID: PMC7308417 DOI: 10.3389/fimmu.2020.00994] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 04/27/2020] [Indexed: 12/14/2022] Open
Abstract
The DJ-1 protein, known as an oxidative stress sensor, participates in the onset of oxidative stress-related diseases such as cancer, neurodegenerative disorders, type 2 diabetes, and male infertility. Although DJ-1 has been extensively studied for more than two decades, evidence has only recently emerged that it plays a key role in immune and inflammatory disorders. The immune regulatory function of DJ-1 is achieved by modulating the activation of several immune cells including macrophages, mast cells, and T cells via reactive oxygen species (ROS)-dependent and/or ROS-independent mechanisms. This review describes the current knowledge on DJ-1, focusing on its immune and inflammatory regulatory roles, and highlights the significance of DJ-1 as a novel therapeutic target for immune and inflammatory diseases.
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Affiliation(s)
- Lulu Zhang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jincheng Wang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Jiajia Wang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Bo Yang
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Qiaojun He
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Qinjie Weng
- Center for Drug Safety Evaluation and Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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20
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Li M, Wang F, Du J, Wang L, Zhang J, Ding X. Ablation of DJ-1 Enhances Oxidative Stress by Disturbing the Function of Mitochondria in Epidermal Melanocytes. Indian J Dermatol 2020; 65:85-91. [PMID: 32180592 PMCID: PMC7059463 DOI: 10.4103/ijd.ijd_593_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Oxidative stress is implicated in the pathogenesis of vitiligo. The function of DJ-1 in oxidative damage of melanocytes is still elusive. Aims The aim of this study was to investigate the role of DJ-1 in oxidative damage of melanocytes. Material and Methods The expression of DJ-1 in melanocytes was studied by reverse transcription-quantitative polymerase chain reaction and Western blot. Short-interfering RNAs (siRNA) were employed to downregulate DJ-1. The cells were pooled into three groups: mock group (cells with transfection reagent), negative control (NC) group (negative siRNA control), and siRNA group. After H2O2 treatment for 24 h, the morphological changes, cell viability, apoptosis, intracellular reactive oxygen species (ROS) levels, mitochondrial membrane potential (MMP), and mitochondrial respiration were measured in different groups. Results DJ-1 was highly expressed in PIG1 melanocytes. DJ-1 knockdown rendered PIG1 melanocytes more susceptible to oxidative stress. Loss of DJ-1 led to apoptosis of PIG1 cells by impairing the function of mitochondria, including morphological abnormalities, ROS accumulation, depolarization of MMP, less adenosine-triphosphate (ATP) production, and less proton leak. Conclusions DJ-1 plays a role in maintaining the antioxidative capacity in epidermal melanocytes.
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Affiliation(s)
- Man Li
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Fang Wang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Juan Du
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Lijuan Wang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Jianzhong Zhang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Xiaolan Ding
- Department of Dermatology, Peking University People's Hospital, Beijing, China
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21
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Wang W, Zhao H, Chen B. DJ-1 protects retinal pericytes against high glucose-induced oxidative stress through the Nrf2 signaling pathway. Sci Rep 2020; 10:2477. [PMID: 32051471 PMCID: PMC7016111 DOI: 10.1038/s41598-020-59408-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/29/2020] [Indexed: 11/08/2022] Open
Abstract
Oxidative stress has been associated with the etipathogenesis of Diabetic retinopathy (DR). Studies have shown that DJ-1 plays an important role in regulating the reactive oxygen species (ROS) production and resistance to oxidative stress-induced apoptosis. This study aimed to investigate whether DJ-1 upregulates oxidative stress and prevents damage to retinal capillary pericytes by increasing antioxidant capacity through the Nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. Nrf2 is a redox-sensitive transcription factor that encode antioxidant enzymes and phase II metabolic enzymes, activation of Nrf2 functions is one of the critical defensive mechanisms against oxidative stress in many tissues. Our results showed after DJ-1 overexpression, apoptosis of rat retinal pericytes (RRPs) decreased, the ratio of B-cell lymphoma-2 (Bcl-2) to BCL2-Associated X Protein (BAX) increased, the production of ROS decreased, and the protein expression and activity of manganese superoxide dismutase (MnSOD, also called SOD2) and catalase (CAT) increased. DJ-1 overexpression activated Nrf2 expression, however, after Nrf2 silencing, apoptosis of RRPs increased, the ratio of Bcl-2 to BAX decreased, the production of ROS increased, the protein expression of MnSOD and CAT decreased, and the expression of heme oxygenase-1 (HO-1), NADP(H) quinone oxidoreductase (NQO1), glutamate-cysteine ligase catalytic subunit (GCLC) and modifier subunit (GCLM) decreased. These data suggest that enhancement of the Nrf2 pathway is a potential protective strategy for the treatment of DR. Therefore, DJ-1 may prevent high glucose-induced oxidative stress and RRPs apoptosis through the Nrf2 signaling pathway, thereby preventing the early onset and progression of DR.
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Affiliation(s)
- Wanpeng Wang
- Department of Ophthalmology, the second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, 410011, China
- Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Han Zhao
- Department of Ophthalmology, the second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, 410011, China
| | - Baihua Chen
- Department of Ophthalmology, the second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China.
- Hunan Clinical Research Center of Ophthalmic Disease, Changsha, Hunan, 410011, China.
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22
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Miyajima T, Melangath G, Zhu S, Deshpande N, Vasanth S, Mondal B, Kumar V, Chen Y, Price MO, Price FW, Rogan EG, Zahid M, Jurkunas UV. Loss of NQO1 generates genotoxic estrogen-DNA adducts in Fuchs Endothelial Corneal Dystrophy. Free Radic Biol Med 2020; 147:69-79. [PMID: 31857234 PMCID: PMC6939626 DOI: 10.1016/j.freeradbiomed.2019.12.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/14/2019] [Accepted: 12/16/2019] [Indexed: 12/13/2022]
Abstract
Fuchs Endothelial Corneal Dystrophy (FECD) is an age-related genetically complex disease characterized by increased oxidative DNA damage and progressive degeneration of corneal endothelial cells (HCEnCs). FECD has a greater incidence and advanced phenotype in women, suggesting a possible role of hormones in the sex-driven differences seen in the disease pathogenesis. In this study, catechol estrogen (4-OHE2), the byproduct of estrogen metabolism, induced genotoxic estrogen-DNA adducts formation, macromolecular DNA damage, and apoptotic cell death in HCEnCs; these findings were potentiated by menadione (MN)-mediated reactive oxygen species (ROS). Expression of NQO1, a key enzyme that neutralizes reactive estrogen metabolites, was downregulated in FECD, indicating HCEnC susceptibility to reactive estrogen metabolism in FECD. NQO1 deficiency in vitro exacerbated the estrogen-DNA adduct formation and loss of cell viability, which was rescued by the supplementation of N-acetylcysteine, a ROS scavenger. Notably, overexpression of NQO1 in HCEnCs treated with MN and 4-OHE2 quenched the ROS formation, thereby reducing the DNA damage and endothelial cell loss. This study signifies a pivotal role for NQO1 in mitigating the macromolecular oxidative DNA damage arising from the interplay between intracellular ROS and impaired endogenous estrogen metabolism in post-mitotic ocular tissue cells. A dysfunctional Nrf2-NQO1 axis in FECD renders HCEnCs susceptible to catechol estrogens and estrogen-DNA adducts formation. This novel study highlights the potential role of NQO1-mediated estrogen metabolite genotoxicity in explaining the higher incidence of FECD in females.
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Affiliation(s)
- Taiga Miyajima
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA; Department of Ophthalmology, Dokkyo Medical University, Tochigi, 321-0293, Japan
| | - Geetha Melangath
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Shan Zhu
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Neha Deshpande
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Shivakumar Vasanth
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Bodhisattwa Mondal
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
| | - Varun Kumar
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Yuming Chen
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - Marianne O Price
- Price Vision Group and Cornea Research Foundation of America, Indianapolis, IN, USA
| | - Francis W Price
- Price Vision Group and Cornea Research Foundation of America, Indianapolis, IN, USA
| | - Eleanor G Rogan
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
| | - Muhammad Zahid
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ula V Jurkunas
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA.
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Malhotra D, Casey JR. Molecular Mechanisms of Fuchs and Congenital Hereditary Endothelial Corneal Dystrophies. Rev Physiol Biochem Pharmacol 2020; 178:41-81. [PMID: 32789790 DOI: 10.1007/112_2020_39] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The cornea, the eye's outermost layer, protects the eye from the environment. The cornea's innermost layer is an endothelium separating the stromal layer from the aqueous humor. A central role of the endothelium is to maintain stromal hydration state. Defects in maintaining this hydration can impair corneal clarity and thus visual acuity. Two endothelial corneal dystrophies, Fuchs Endothelial Corneal Dystrophy (FECD) and Congenital Hereditary Endothelial Dystrophy (CHED), are blinding corneal diseases with varied clinical presentation in patients across different age demographics. Recessive CHED with an early onset (typically age: 0-3 years) and dominantly inherited FECD with a late onset (age: 40-50 years) have similar phenotypes, although caused by defects in several different genes. A range of molecular mechanisms have been proposed to explain FECD and CHED pathology given the involvement of multiple causative genes. This critical review provides insight into the proposed molecular mechanisms underlying FECD and CHED pathology along with common pathways that may explain the link between the defective gene products and provide a new perspective to view these genetic blinding diseases.
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Affiliation(s)
- Darpan Malhotra
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada
- Membrane Protein Disease Research Group, University of Alberta, Edmonton, AB, Canada
| | - Joseph R Casey
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada.
- Membrane Protein Disease Research Group, University of Alberta, Edmonton, AB, Canada.
- Department of Physiology, University of Alberta, Edmonton, AB, Canada.
- Department of Ophthalmology and Visual Science, University of Alberta, Edmonton, AB, Canada.
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Lovatt M, Adnan K, Kocaba V, Dirisamer M, Peh GSL, Mehta JS. Peroxiredoxin-1 regulates lipid peroxidation in corneal endothelial cells. Redox Biol 2019; 30:101417. [PMID: 31901729 PMCID: PMC6948265 DOI: 10.1016/j.redox.2019.101417] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/17/2019] [Accepted: 12/29/2019] [Indexed: 01/18/2023] Open
Abstract
Corneal transparency is maintained by a monolayer of corneal endothelial cells. Defects in corneal endothelial cells (CEnCs) can be rectified surgically through transplantation. Fuchs’ endothelial corneal dystrophy (FECD) is the foremost cause of endothelial dysfunction and the leading indication for transplantation. Increased sensitivity of CEnCs to oxidative stress is thought to contribute to the pathogenesis of FECD through increased apoptosis. In part, this is thought to be due to loss of NRF2 expression: a global regulator of oxidative stress. We demonstrate that expression of the redox sensor, peroxiredoxin 1 (PRDX1) is selectively lost from CEnCs in FECD patient samples. We reveal that expression of PRDX1 is necessary to control the response of CEnCs to agents that cause lipid peroxidation. Iron-dependent lipid peroxidation drives non-apoptotic cell death termed ferroptosis. We establish that the inhibitor of ferroptosis, ferrostatin-1 rescues lipid peroxidation and cell death in CEnCs. Furthermore, we provide evidence that the transcription factor NRF2 similarly regulates lipid peroxidation in CEnCs. PRDX1 is a key regulator of lipid peroxidation. Expression of PRDX1 is lost in Fuchs' endothelial corneal dystrophy. Oxidative stress reduces PRDX1 expression in cultures of CEnCs.
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Affiliation(s)
- Matthew Lovatt
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore; Duke-NUS Graduate Medical School, Ophthalmology & Visual Sciences Academic Clinical Programme (EYE ACP), Singapore.
| | - Khadijah Adnan
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore
| | - Viridiana Kocaba
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore
| | - Martin Dirisamer
- University Eye Hospital, Ludwig-Maximilian-University Munich, Germany
| | - Gary S L Peh
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore; Duke-NUS Graduate Medical School, Ophthalmology & Visual Sciences Academic Clinical Programme (EYE ACP), Singapore
| | - Jodhbir S Mehta
- Tissue Engineering and Stem Cell Group, Singapore Eye Research Institute (SERI), Singapore; Duke-NUS Graduate Medical School, Ophthalmology & Visual Sciences Academic Clinical Programme (EYE ACP), Singapore; Singapore National Eye Centre (SNEC), Singapore; School of Material Science and Engineering, Nanyang Technological University, Singapore.
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25
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Miyai T, Vasanth S, Melangath G, Deshpande N, Kumar V, Benischke AS, Chen Y, Price MO, Price FW, Jurkunas UV. Activation of PINK1-Parkin-Mediated Mitophagy Degrades Mitochondrial Quality Control Proteins in Fuchs Endothelial Corneal Dystrophy. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:2061-2076. [PMID: 31361992 DOI: 10.1016/j.ajpath.2019.06.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/25/2019] [Accepted: 06/11/2019] [Indexed: 11/19/2022]
Abstract
Corneal endothelium (CE) is a monolayer of mitochondria-rich cells, critical for maintaining corneal transparency compatible with clear vision. Fuchs endothelial corneal dystrophy (FECD) is a heterogeneous, genetically complex disorder, where oxidative stress plays a key role in the rosette formation during the degenerative loss of CE. Increased mitochondrial fragmentation along with excessive mitophagy activation has been detected in FECD; however, the mechanism of aberrant mitochondrial dynamics in CE cell loss is poorly understood. Here, the role of oxidative stress in mitophagy activation in FECD is investigated. Immunoblotting of FECD ex vivo specimens revealed an accumulation of PINK1 and phospho-Parkin (Ser65) along with loss of total Parkin and total Drp1. Similarly, modeling of rosette formation with menadione (MN), led to phospho-Parkin accumulation in fragmented mitochondria resulting in mitophagy-induced mitochondrial clearance, albeit possibly in a PINK1-independent manner. Loss of PINK1, phospho-Drp1, and total Drp1 was prominent after MN-induced oxidative stress, but not after mitochondrial depolarization by carbonyl cyanide m-chlorophenyl hydrazone. Moreover, MN-induced mitophagy led to degradation of Parkin along with sequestration of Drp1 and PINK1 that was rescued by mitophagy inhibition. This study shows that in FECD, intracellular oxidative stress induces Parkin-mediated mitochondrial fragmentation where endogenous Drp1 and PINK1 are sequestered and degraded by mitophagy during degenerative loss of post-mitotic cells of ocular tissue.
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Affiliation(s)
- Takashi Miyai
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Shivakumar Vasanth
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Geetha Melangath
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Neha Deshpande
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Varun Kumar
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Anne-Sophie Benischke
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | - Yuming Chen
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts
| | | | | | - Ula V Jurkunas
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Opthalmology, Harvard Medical School, Boston, Massachusetts.
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Khaleel SA, Raslan NA, Alzokaky AA, Ewees MG, Ashour AA, Abdel-Hamied HE, Abd-Allah AR. Contrast media (meglumine diatrizoate) aggravates renal inflammation, oxidative DNA damage and apoptosis in diabetic rats which is restored by sulforaphane through Nrf2/HO-1 reactivation. Chem Biol Interact 2019; 309:108689. [PMID: 31173751 DOI: 10.1016/j.cbi.2019.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 02/01/2023]
Abstract
Diabetes mellitus is an independent risk factor for renal impairment in patients exposed to contrast media. It doubles the risk and decreases survival rate of contrast induced nephropathy (CIN). Sulforaphane has antioxidant properties via Nrf2 activation. The interaction of diabetes and/or sulforaphane with contrast media on Nrf2 regulation is not yet understood. Herein, diabetes was induced by a single intra-peritoneal injection of streptozotocin. Animals were then divided into five groups; control non-diabetic group; diabetic group; diabetic/sulforaphane group; diabetic/CIN group; diabetic/CIN/sulforaphane group. Animals were assessed 24 h after CIN induction. Sulforaphane improved the impaired nephrotoxicity parameters, histopathological features, and oxidative stress markers induced by contrast media (meglumine diatrizoate) in diabetic rats. Immunofluorescence detection revealed increased Nrf2 expression in kidney sections after sulforaphane pretreatment. Moreover, gene expression of Nrf2 and HO-1 were up-regulated, while IL-6 and caspase3 were down-regulated in kidney tissues of animals pretreated with sulforaphane. In NRK-52E cells, sulforaphane pretreatment significantly ameliorated the cytotoxicity of meglumine diatrizoate. However, silencing Nrf2 using small interfering RNA (siRNA) abolished the cytoprotective effects of sulforaphane. Collectively, the results of this study suggest that Nrf2/HO-1 pathway has a protective role against CIN and support the clinical implication of Nrf2 activators, such as sulforaphane, in CIN particularly in diabetic patients.
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Affiliation(s)
- Sahar A Khaleel
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA.
| | - Nahed A Raslan
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Amany A Alzokaky
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mohamed G Ewees
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Ahmed A Ashour
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Hala E Abdel-Hamied
- Department of Pathology, College of Medicine, Al-Azhar University, Cairo, Egypt
| | - Adel R Abd-Allah
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
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Literature-Based Enrichment Insights into Redox Control of Vascular Biology. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1769437. [PMID: 31223421 PMCID: PMC6542245 DOI: 10.1155/2019/1769437] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 04/11/2019] [Accepted: 05/02/2019] [Indexed: 02/07/2023]
Abstract
In cellular physiology and signaling, reactive oxygen species (ROS) play one of the most critical roles. ROS overproduction leads to cellular oxidative stress. This may lead to an irrecoverable imbalance of redox (oxidation-reduction reaction) function that deregulates redox homeostasis, which itself could lead to several diseases including neurodegenerative disease, cardiovascular disease, and cancers. In this study, we focus on the redox effects related to vascular systems in mammals. To support research in this domain, we developed an online knowledge base, DES-RedoxVasc, which enables exploration of information contained in the biomedical scientific literature. The DES-RedoxVasc system analyzed 233399 documents consisting of PubMed abstracts and PubMed Central full-text articles related to different aspects of redox biology in vascular systems. It allows researchers to explore enriched concepts from 28 curated thematic dictionaries, as well as literature-derived potential associations of pairs of such enriched concepts, where associations themselves are statistically enriched. For example, the system allows exploration of associations of pathways, diseases, mutations, genes/proteins, miRNAs, long ncRNAs, toxins, drugs, biological processes, molecular functions, etc. that allow for insights about different aspects of redox effects and control of processes related to the vascular system. Moreover, we deliver case studies about some existing or possibly novel knowledge regarding redox of vascular biology demonstrating the usefulness of DES-RedoxVasc. DES-RedoxVasc is the first compiled knowledge base using text mining for the exploration of this topic.
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28
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Newton VL, Riba-Garcia I, Griffiths CEM, Rawlings AV, Voegeli R, Unwin RD, Sherratt MJ, Watson REB. Mass spectrometry-based proteomics reveals the distinct nature of the skin proteomes of photoaged compared to intrinsically aged skin. Int J Cosmet Sci 2019; 41:118-131. [PMID: 30661253 DOI: 10.1111/ics.12513] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 12/15/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE With increasing age, skin is subject to alterations in its organization, which impact on its function as well as having clinical consequences. Proteomics is a useful tool for non-targeted, semi-quantitative simultaneous investigation of high numbers of proteins. In the current study, we utilize proteomics to characterize and contrast age-associated differences in photoexposed and photoprotected skin, with a focus on the epidermis, dermal-epidermal junction and papillary dermis. METHODS Skin biopsies from buttock (photoprotected) and forearm (photoexposed) of healthy volunteers (aged 18-30 or ≥65 years) were transversely sectioned from the stratum corneum to a depth of 250 μm. Following SDS-PAGE, each sample lane was segmented prior to analysis by liquid chromatography-mass spectrometry/mass spectrometry. Pathway analysis was carried out using Ingenuity IPA. RESULTS Comparison of skin proteomes at buttock and forearm sites revealed differences in relative protein abundance. Ageing in skin on the photoexposed forearm resulted in 80% of the altered proteins being increased with age, in contrast to the photoprotected buttock where 74% of altered proteins with age were reduced. Functionally, age-altered proteins in the photoexposed forearm were associated with conferring structure, energy and metabolism. In the photoprotected buttock, proteins associated with gene expression, free-radical scavenging, protein synthesis and protein degradation were most frequently altered. CONCLUSION This study highlights the necessity of not considering photoageing as an accelerated intrinsic ageing, but as a distinct physiological process.
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Affiliation(s)
- V L Newton
- Centre for Dermatology Research, Division of Musculoskeletal & Dermatological Sciences, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, and Salford Royal NHS Foundation Trust, Manchester, UK.,NIHR Manchester Biomedical Research Centre, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - I Riba-Garcia
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Core Technology facility (3rd Floor), 46 Grafton Street, Manchester, M13 9NT, UK
| | - C E M Griffiths
- Centre for Dermatology Research, Division of Musculoskeletal & Dermatological Sciences, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, and Salford Royal NHS Foundation Trust, Manchester, UK.,NIHR Manchester Biomedical Research Centre, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | | | - R Voegeli
- DSM Nutritional Products Ltd, Kaiseraugst, Switzerland
| | - R D Unwin
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Core Technology facility (3rd Floor), 46 Grafton Street, Manchester, M13 9NT, UK
| | - M J Sherratt
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - R E B Watson
- Centre for Dermatology Research, Division of Musculoskeletal & Dermatological Sciences, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, and Salford Royal NHS Foundation Trust, Manchester, UK.,NIHR Manchester Biomedical Research Centre, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Cheng YT, Lin JA, Jhang JJ, Yen GC. Protocatechuic acid-mediated DJ-1/PARK7 activation followed by PI3K/mTOR signaling pathway activation as a novel mechanism for protection against ketoprofen-induced oxidative damage in the gastrointestinal mucosa. Free Radic Biol Med 2019; 130:35-47. [PMID: 30326282 DOI: 10.1016/j.freeradbiomed.2018.10.415] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 09/30/2018] [Accepted: 10/08/2018] [Indexed: 12/31/2022]
Abstract
Oxidative stress contributes to the progression of non-steroidal anti-inflammatory drug (NSAID)-induced gastrointestinal (GI) cell apoptosis. In our previous study, we reported that nuclear factor erythroid 2-related factor 2 (Nrf2) plays a protective role against ketoprofen-induced GI mucosal oxidative injury. Recent reports suggest that Nrf2 could exhibit antioxidative and antiapoptosis responses through up-regulation of DJ-1 (PARK7). In the current study, we proposed that induction of DJ-1 expression by protocatechuic acid (PCA) might provide a potential therapeutic approach for treating oxidative stress-associated GI ulcer diseases. The results indicated that PCA increased mRNA expression of glutathione peroxidase and heme oxygenase-1 through up-regulation of DJ-1 followed by Nrf2 translocation. Furthermore, PCA protected Int-407 cells against ketoprofen-induced oxidative stress by regulating the DJ-1, PI3K, and mTOR pathways. Pretreatment with PCA inhibited mitochondrial ROS generation, up-regulated the mitochondrial membrane potential, and down-regulated pro-apoptotic Bax as well as downstream caspase-8, caspase-9, and caspase-3 activity, and reversed impaired DJ-1 and anti-apoptotic Bcl-2 protein expression in Int-407 cells induced by ketoprofen. Similar to the in vitro results, SD rats treated with PCA before administration of ketoprofen exhibited decreased caspase-3 protein expression as well as oxidative damage, and impairment of the antioxidant system and DJ-1 protein expression in the GI mucosa were reversed. The administration of lansoprazole, a type of proton pump inhibitor (PPI), strongly inhibited ketoprofen-induced GI mucosal injuries via up-regulation of DJ-1, indicating that DJ-1 is essential for the dietary antioxidant- and PPI drug-mediated mechanism of ulcer therapy. These results suggest that DJ-1 could be a novel target for protection against ketoprofen-induced GI ulcers due to its antioxidant and anti-apoptosis characteristics.
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Affiliation(s)
- Yu-Ting Cheng
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Jer-An Lin
- Graduate Institute of Food Safety, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Jhih-Jia Jhang
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan; Graduate Institute of Food Safety, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan.
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30
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Oxidative Damages to Eye Stem Cells, in Response to, Bright and Ultraviolet Light, Their Associated Mechanisms, and Salvage Pathways. Mol Biotechnol 2018; 61:145-152. [DOI: 10.1007/s12033-018-0136-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Essential role of ultraviolet radiation in the decrease of corneal endothelial cell density caused by pterygium. Eye (Lond) 2018; 32:1886-1892. [PMID: 30158575 DOI: 10.1038/s41433-018-0188-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 06/11/2018] [Accepted: 07/09/2018] [Indexed: 01/16/2023] Open
Abstract
PURPOSE To investigate the essential role of ultraviolet (UV) radiation in the decrease of corneal endothelial cell density (ECD) caused by pterygium. METHODS In this retrospective controlled study, 76 consecutive patients with unilateral primary pterygium were enrolled from January 2016 to August 2016. The Central corneal ECD was measured in both eyes. Divide the subjects into two subgroups according to the UV exposure time, and the difference of corneal ECD between both eyes was analyzed using independent samples t-test. The relationship between the percentage of difference of corneal ECD and the disease duration, the percentage of pterygium to the cornea and the astigmatism value were analyzed. RESULTS For subjects with longer UV exposure, the average of ECD in pterygium group and control group were, respectively, 2264.83 ± 349.78 cells/mm2 and 2477.16 ± 300.36 cells/mm2 (P = 0.004). For subjects with short UV exposure, the average of ECD in pterygium group and control group were, respectively, 2596.46 ± 373.24 cells/mm2 and 2690.66 ± 321.34 cells/mm2 (P = 0.262). The decrease of corneal ECD was positively correlated with the period of the disease (P = 0.035). There was no statistical correlation between a decrease in the corneal ECD and the percentage of pterygium to cornea (R = -0.055, P = 0.635) and the astigmatism value in the pterygium eye (R = -0.135, P = 0.246). CONCLUSIONS UV radiation exposure played a significant role in the effect of pterygium decreasing the corneal ECD.
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Schumann C, Chan S, Millar JA, Bortnyak Y, Carey K, Fedchyk A, Wong L, Korzun T, Moses AS, Lorenz A, Shea D, Taratula O, Khalimonchuk O, Taratula O. Intraperitoneal nanotherapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1395-1405. [PMID: 29635082 DOI: 10.1016/j.nano.2018.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022]
Abstract
Herein, we report an efficient combinatorial therapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. DJ-1 protein modulates, either directly or indirectly, different oncogenic pathways that support and promote survival, growth, and invasion of ovarian cancer cells. To evaluate the potential of this novel therapy, we have engineered a cancer-targeted nanoplatform and validated that DJ-1 siRNA delivered by this nanoplatform after intraperitoneal injection efficiently downregulates the DJ-1 protein in metastatic ovarian cancer tumors and ascites. In vivo experiments revealed that DJ-1 siRNA monotherapy outperformed cisplatin alone by inhibiting tumor growth and increasing survival of mice with metastatic ovarian cancer. Finally, three cycles of siRNA-mediated DJ-1 therapy in combination with a low dose of cisplatin completely eradicated ovarian cancer tumors from the mice, and there was no cancer recurrence detected for the duration of the study, which lasted 35 weeks.
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Affiliation(s)
- Canan Schumann
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Stephanie Chan
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Jess A Millar
- Fairborz Maseeh Department of Mathematics and Statistics, Portland State University, OR, USA
| | - Yuliya Bortnyak
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Katherine Carey
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Alex Fedchyk
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Leon Wong
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Tetiana Korzun
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Abraham S Moses
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Anna Lorenz
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Delany Shea
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Olena Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Oleh Khalimonchuk
- Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, NE, USA; Fred & Pamela Buffett Cancer Center, Omaha, NE, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA.
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Katikireddy KR, White TL, Miyajima T, Vasanth S, Raoof D, Chen Y, Price MO, Price FW, Jurkunas UV. NQO1 downregulation potentiates menadione-induced endothelial-mesenchymal transition during rosette formation in Fuchs endothelial corneal dystrophy. Free Radic Biol Med 2018; 116:19-30. [PMID: 29294389 PMCID: PMC5815941 DOI: 10.1016/j.freeradbiomed.2017.12.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 12/08/2017] [Accepted: 12/29/2017] [Indexed: 12/18/2022]
Abstract
Fuchs endothelial corneal dystrophy (FECD) is a genetic and oxidative stress disorder of post-mitotic human corneal endothelial cells (HCEnCs), which normally exhibit hexagonal shape and form a compact monolayer compatible with normal corneal functioning and clear vision. FECD is associated with increased DNA damage, which in turn leads to HCEnC loss, resulting in the formation rosettes and aberrant extracellular matrix (ECM) deposition in the form of pro-fibrotic guttae. Since the mechanism of ECM deposition in FECD is currently unknown, we aimed to investigate the role of endothelial-mesenchymal transition (EMT) in FECD using a previously established cellular in vitro model that recapitulates the characteristic rosette formation, by employing menadione (MN)-induced oxidative stress. We demonstrate that MN treatment alone, or a combination of MN and TGF-β1 induces reactive oxygen species (ROS), cell death, and EMT in HCEnCs during rosette formation, resulting in upregulation of EMT- and FECD-associated markers such as Snail1, N-cadherin, ZEB1, and transforming growth factor-beta-induced (TGFβI), respectively. Additionally, FECD ex vivo specimens displayed a loss of organized junctional staining of plasma membrane-bound N-cadherin, with corresponding increase in fibronectin and Snail1 compared to ex vivo controls. Addition of N-acetylcysteine (NAC) downregulated all EMT markers and abolished rosette formation. Loss of NQO1, a metabolizing enzyme of MN, led to greater increase in intracellular ROS levels as well as a significant upregulation of Snail1, fibronectin, and N-cadherin compared to normal cells, indicating that NQO1 regulates Snail1-mediated EMT. This study provides first line evidence that MN-induced oxidative stress leads to EMT in corneal endothelial cells, and the effect of which is further potentiated when redox cycling activity of MN is enhanced by the absence of NQO1. Given that NAC inhibits Snail-mediated EMT, this may be a potential therapeutic intervention for FECD.
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Affiliation(s)
- Kishore Reddy Katikireddy
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA
| | - Tomas L White
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA
| | - Taiga Miyajima
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA
| | - Shivakumar Vasanth
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA
| | - Duna Raoof
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA; Harvard Eye Associates, Laguna Hills, CA 92660, USA
| | - Yuming Chen
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA
| | - Marianne O Price
- Cornea Research Foundation of America, Indianapolis, IN 46260, USA
| | - Francis W Price
- Cornea Research Foundation of America, Indianapolis, IN 46260, USA
| | - Ula V Jurkunas
- Schepens Eye Research Institute, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA.
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Liu C, Liu X, Qi J, Pant OP, Lu CW, Hao J. DJ-1 in Ocular Diseases: A Review. Int J Med Sci 2018; 15:430-435. [PMID: 29559831 PMCID: PMC5859765 DOI: 10.7150/ijms.23428] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Accepted: 01/05/2018] [Indexed: 01/13/2023] Open
Abstract
Protein deglycase DJ-1 (Parkinson disease protein 7) is a 20 kDa protein encoded by PARK7 gene. It is also known as a redox-sensitive chaperone and sensor that protect cells against oxidative stress-induced cell death in many human diseases. Though increasing evidence implicates that DJ-1 may also participate in ocular diseases, the overview of DJ-1 in ocular diseases remains elusive. In this review, we discuss the role as well as the underlying molecular mechanisms of DJ-1 in ocular diseases, including Fuchs endothelial corneal dystrophy (FECD), age-related macular degeneration (AMD), cataracts, and ocular neurodegenerative diseases, highlighting that DJ-1 may serve as a very striking therapeutic target for ocular diseases.
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Affiliation(s)
| | | | | | | | - Cheng-wei Lu
- Department of Ophthalmology, The First Hospital of Jilin University, Jilin, China
| | - Jilong Hao
- Department of Ophthalmology, The First Hospital of Jilin University, Jilin, China
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Abstract
Fuchs' endothelial dystrophy (FED) is characterized by corneal endothelial dysfunction and guttate excrescences on the posterior corneal surface, and is the leading indication for corneal transplantation in developed countries. In severe cases, keratoplasty is considered as the gold standard of treatment. However, there have been significant developments in our understanding of FED over the past decade. Attempts have been made to treat this disease with regenerative therapy techniques such as primary descemetorhexis without an endothelial graft or with a tissue-engineering approach. The discovery of a strong association between the CTG18.1 trinucleotide repeat expansion sequence and FED may pave the way for gene therapy strategies in the future. In this review, we evaluate these novel therapeutic modalities as possible alternatives to keratoplasty as the standard of care for FED.
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Affiliation(s)
- Yu Qiang Soh
- Tissue Engineering & Stem Cell Group, Singapore Eye Research Institute, 168751, Singapore.,Department of Corneal & External Eye Disease, Singapore National Eye Centre, 168751, Singapore
| | - Gary Sl Peh
- Tissue Engineering & Stem Cell Group, Singapore Eye Research Institute, 168751, Singapore.,Ophthalmology Academic Clinical Program, Duke-NUS Graduate Medical School, 169857, Singapore
| | - Jodhbir S Mehta
- Tissue Engineering & Stem Cell Group, Singapore Eye Research Institute, 168751, Singapore.,Department of Corneal & External Eye Disease, Singapore National Eye Centre, 168751, Singapore.,Ophthalmology Academic Clinical Program, Duke-NUS Graduate Medical School, 169857, Singapore.,Department of Clinical Sciences, Duke-NUS Graduate Medical School, 169857, Singapore
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Han T, Liu M, Yang S. DJ-1 Alleviates Angiotensin II-Induced Endothelial Progenitor Cell Damage by Activating the PPARγ/HO-1 Pathway. J Cell Biochem 2018; 119:392-400. [PMID: 28600848 DOI: 10.1002/jcb.26191] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 06/05/2017] [Indexed: 01/06/2023]
Abstract
There is evidence that angiotensin II (Ang II) may impair the functions of endothelial progenitor cells (EPCs). It was revealed that DJ-1 could resist oxidative stress. In this study, we investigated whether DJ-1 could protect EPCs against Ang II-induced cell damage. The proliferation and migration of EPCs were strongly reduced in the Ang II group and were increased by overexpression of DJ-1. Western blotting indicated that the increased expression of the senescence marker β-galactosidase and decreased expression of adhesion molecules (ICAM-1, VCAM-1) induced by Ang II were reversed after Ad-DJ-1 transfection. The reduced angiogenic capacity of EPCs caused by Ang II was also improved after Ad-DJ-1 transfection. Moreover, Ang II significantly increased the levels of reactive oxygen species (ROS), malondialdehyde (MDA), and inflammatory cytokines (TNF-α and IL-1β), reduced the levels of superoxide dismutase (SOD), glutathione (GSH), and these were reversed by Ad-DJ-1 transfection. Expression of peroxisome proliferator-activated receptor-γ (PPARγ) and heme oxygenase (HO-1) was increased by DJ-1. Therefore, HO-1 siRNA were constructed and transfected into EPCs, and the results showed that HO-1 siRNA transfection inhibited the effects of DJ-1 on EPC function. Thus, our study implies that DJ-1 may protect EPCs against Ang II-induced dysfunction by activating the PPARγ/HO-1. J. Cell. Biochem. 119: 392-400, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Tao Han
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033,, Jilin, China
| | - Meihan Liu
- Department of Ultrasonography, China-Japan Union Hospital, Jilin University, Changchun, 130033,, Jilin, China
| | - Songbai Yang
- Department of Vascular Surgery, China-Japan Union Hospital, Jilin University, Changchun, 130033,, Jilin, China
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Why should neuroscientists worry about iron? The emerging role of ferroptosis in the pathophysiology of neuroprogressive diseases. Behav Brain Res 2017; 341:154-175. [PMID: 29289598 DOI: 10.1016/j.bbr.2017.12.036] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 12/23/2017] [Accepted: 12/27/2017] [Indexed: 12/12/2022]
Abstract
Ferroptosis is a unique form of programmed death, characterised by cytosolic accumulation of iron, lipid hydroperoxides and their metabolites, and effected by the fatal peroxidation of polyunsaturated fatty acids in the plasma membrane. It is a major driver of cell death in neurodegenerative neurological diseases. Moreover, cascades underpinning ferroptosis could be active drivers of neuropathology in major psychiatric disorders. Oxidative and nitrosative stress can adversely affect mechanisms and proteins governing cellular iron homeostasis, such as the iron regulatory protein/iron response element system, and can ultimately be a source of abnormally high levels of iron and a source of lethal levels of lipid membrane peroxidation. Furthermore, neuroinflammation leads to the upregulation of divalent metal transporter1 on the surface of astrocytes, microglia and neurones, making them highly sensitive to iron overload in the presence of high levels of non-transferrin-bound iron, thereby affording such levels a dominant role in respect of the induction of iron-mediated neuropathology. Mechanisms governing systemic and cellular iron homeostasis, and the related roles of ferritin and mitochondria are detailed, as are mechanisms explaining the negative regulation of ferroptosis by glutathione, glutathione peroxidase 4, the cysteine/glutamate antiporter system, heat shock protein 27 and nuclear factor erythroid 2-related factor 2. The potential role of DJ-1 inactivation in the precipitation of ferroptosis and the assessment of lipid peroxidation are described. Finally, a rational approach to therapy is considered, with a discussion on the roles of coenzyme Q10, iron chelation therapy, in the form of deferiprone, deferoxamine (desferrioxamine) and deferasirox, and N-acetylcysteine.
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Tian H, Li S, Yu K. DJ‑1 alleviates high glucose‑induced endothelial cells injury via PI3K/Akt‑eNOS signaling pathway. Mol Med Rep 2017; 17:1205-1211. [PMID: 29115508 DOI: 10.3892/mmr.2017.7975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 10/13/2017] [Indexed: 11/06/2022] Open
Abstract
Hyperglycemia mediated endothelial cells (ECs) injury is closely associated with diabetic vascular complications. It was revealed that DJ‑1 possesses cellular protective effects by suppressing oxidative stress. The present study aimed to investigate the beneficial effects of DJ‑1 on high glucose (HG)‑induced human umbilical vein endothelial cell (HUVEC) injury and to elucidate its underlying mechanisms. HUVECs were incubated under 5.5 mM (control group) or 25 mM D‑glucose (HG group) and then transfected with recombinant adenoviral vectors to overexpression of DJ‑1. Cell proliferation and apoptosis were measured using the EdU incorporation assay and flow cytometry with Annexin V-FITC/propidium iodide double staining, respectively. Apoptotic‑related proteins were determined using western blot analysis. Reactive oxygen species (ROS) production, lactate dehydrogenase (LDH) and nitric oxide (NO) levels, the content of malondialdehyde (MDA), and the activities of superoxide dismutase (SOD) were measured. Results demonstrated that overexpression of DJ‑1 promoted cell proliferation and inhibited HUVECs apoptosis stimulated by HG. DJ‑1 also suppressed the HG‑induced reduction in the Bcl‑2/Bax ratio and HG activated ROS generation in HUVECs. Furthermore, HG significantly increased the levels of LDH and MDA, and reduced the level of SOD; however, these effects were reversed by Ad‑DJ‑1 transfection. Furthermore, the cellular protective effect of overexpression of DJ‑1 enhanced p‑Akt/Akt ratio, eNOS activation and NO production, and these trends were partially reversed by a phosphatidylinositol‑4,5‑bisphosphate 3‑kinase (PI3K) inhibitor (LY294002). Taken together, the present study highlighted the involvement of DJ‑1 in HG‑related EC injury and identified that DJ‑1 exerts a cellular protective effect in HUVECs exposed to HG induced oxidative stress via activation of the PI3K/Akt‑eNOS signaling pathway.
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Affiliation(s)
- Hongan Tian
- Radiology Department, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Shunzhen Li
- Radiology Department, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
| | - Kaihu Yu
- Radiology Department, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei 437100, P.R. China
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Nrf2, a Potential Therapeutic Target against Oxidative Stress in Corneal Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2326178. [PMID: 29209447 PMCID: PMC5676473 DOI: 10.1155/2017/2326178] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 09/20/2017] [Indexed: 01/09/2023]
Abstract
Corneal diseases are one of the major causes of blindness worldwide. Conservative medical agents, which may prevent sight-threatening corneal disease progression, are urgently desired. Numerous evidences have revealed the involvement of oxidative stress in various corneal diseases, such as corneal wound healing and Fuchs endothelial corneal dystrophy (FECD). Nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/Kelch-like erythroid-cell-derived protein with CNC homology- (ECH-) associated protein 1 (Keap1)/antioxidant response element (ARE) signaling is well known as one of the main antioxidative defense systems. To the best of our knowledge, this is the first review to elucidate the different expression profiles of Nrf2 signaling as well as the underlying mechanisms in corneal diseases, implicating that Nrf2 may serve as a potentially promising therapeutic target for corneal diseases.
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Activation of mitophagy leads to decline in Mfn2 and loss of mitochondrial mass in Fuchs endothelial corneal dystrophy. Sci Rep 2017; 7:6656. [PMID: 28751712 PMCID: PMC5532298 DOI: 10.1038/s41598-017-06523-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 06/14/2017] [Indexed: 12/13/2022] Open
Abstract
Human corneal endothelial cells (HCEnCs) are terminally differentiated cells that have limited regenerative potential. The large numbers of mitochondria in HCEnCs are critical for pump and barrier function required for corneal hydration and transparency. Fuchs Endothelial Corneal Dystrophy (FECD) is a highly prevalent late-onset oxidative stress disorder characterized by progressive loss of HCEnCs. We previously reported increased mitochondrial fragmentation and reduced ATP and mtDNA copy number in FECD. Herein, carbonyl cyanide m-chlorophenyl hydrazone (CCCP)-induced mitochondrial depolarization decreased mitochondrial mass and Mfn2 levels, which were rescued with mitophagy blocker, bafilomycin, in FECD. Moreover, electron transport chain complex (I, V) decrease in FECD indicated deficient mitochondrial bioenergetics. Transmission electron microscopy of FECD tissues displayed an increased number of autophagic vacuoles containing degenerated and swollen mitochondria with cristolysis. An elevation of LC3-II and LAMP1 and downregulation of Mfn2 in mitochondrial fractions suggested that loss of fusion capacity targets fragmented mitochondria to the pre-autophagic pool and upregulates mitophagy. CCCP-induced mitochondrial fragmentation leads to Mfn2 and LC3 co-localization without activation of proteosome, suggesting a novel Mfn2 degradation pathway via mitophagy. These data indicate constitutive activation of mitophagy results in reduction of mitochondrial mass and abrogates cellular bioenergetics during degeneration of post-mitotic cells of ocular tissue.
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Richarme G, Liu C, Mihoub M, Abdallah J, Leger T, Joly N, Liebart JC, Jurkunas UV, Nadal M, Bouloc P, Dairou J, Lamouri A. Guanine glycation repair by DJ-1/Park7 and its bacterial homologs. Science 2017; 357:208-211. [DOI: 10.1126/science.aag1095] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 05/17/2017] [Indexed: 01/05/2023]
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Research Progress on Signaling Pathway-Associated Oxidative Stress in Endothelial Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7156941. [PMID: 28503253 PMCID: PMC5414589 DOI: 10.1155/2017/7156941] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 12/31/2022]
Abstract
Studying the mechanisms of oxidative stress in endothelial cells is vital to the discovery of novel drugs for the treatment of cardiovascular disease. This article reviews the progress within the field of the role of oxidative responses in the physiology and growth of endothelial cells and emphasizes the effects of several main signal pathways involved in the oxidative stress of endothelial cells. Herein, we aim to provide scientific direction that can serve as a basis for researchers specializing in the signaling pathway of oxidative stress.
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Srivastava S, Blower PJ, Aubdool AA, Hider RC, Mann GE, Siow RC. Cardioprotective effects of Cu (II)ATSM in human vascular smooth muscle cells and cardiomyocytes mediated by Nrf2 and DJ-1. Sci Rep 2016; 6:7. [PMID: 28442712 PMCID: PMC5431352 DOI: 10.1038/s41598-016-0012-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/25/2016] [Indexed: 02/07/2023] Open
Abstract
Cu(II)ATSM was developed as a hypoxia sensitive positron emission tomography agent. Recent reports have highlighted the neuroprotective properties of Cu(II)ATSM, yet there are no reports that it confers cardioprotection. We demonstrate that Cu(II)ATSM activates the redox-sensitive transcription factor Nrf2 in human coronary artery smooth muscle cells (HCASMC) and cardiac myocytes (HCM), leading to upregulation of antioxidant defense enzymes. Oral delivery of Cu(II)ATSM in mice induced expression of the Nrf2-regulated enzymes in the heart and aorta. In HCASMC, Cu(II)ATSM increased expression of the Nrf2 stabilizer DJ-1, and knockdown of Nrf2 or DJ-1 attenuated Cu(II)ATSM-mediated heme oxygenase-1 and NADPH quinone oxidoreductase-1 induction. Pre-treatment of HCASMC with Cu(II)ATSM protected against the pro-oxidant effects of angiotensin II (Ang II) by attenuating superoxide generation, apoptosis, proliferation and increases in intracellular calcium. Notably, Cu(II)ATSM-mediated protection against Ang II-induced HCASMC apoptosis was diminished by Nrf2 knockdown. Acute treatment with Cu(II)ATSM enhanced the association of DJ-1 with superoxide dismutase-1 (SOD1), paralleled by significant increases in intracellular Cu(II) levels and SOD1 activity. We describe a novel mechanism by which Cu(II)ATSM induces Nrf2-regulated antioxidant enzymes and protects against Ang II-mediated HCASMC dysfunction via activation of the Nrf2/DJ-1 axis. Cu(II)ATSM may provide a therapeutic strategy for cardioprotection via upregulation of antioxidant defenses.
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MESH Headings
- Animals
- Humans
- Male
- Antioxidants/metabolism
- Apoptosis/drug effects
- Cardiotonic Agents/pharmacology
- Cell Proliferation/drug effects
- Coordination Complexes
- Coronary Vessels/cytology
- Mice, Inbred C57BL
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Organometallic Compounds/pharmacology
- Protein Deglycase DJ-1/metabolism
- Signal Transduction
- Thiosemicarbazones/pharmacology
- NF-E2-Related Factor 2/metabolism
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Affiliation(s)
- Salil Srivastava
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Philip J Blower
- Imaging Sciences & Biomedical Engineering Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, The Rayne Institute, St. Thomas' Hospital, London, SE1 7EH, UK
| | - Aisah A Aubdool
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | - Robert C Hider
- Institute of Pharmaceutical Science, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK
| | | | - Richard C Siow
- Cardiovascular Division, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, 150 Stamford Street, London, SE1 9NH, UK.
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Tahir W, Zafar S, Llorens F, Arora AS, Thüne K, Schmitz M, Gotzmann N, Kruse N, Mollenhauer B, Torres JM, Andréoletti O, Ferrer I, Zerr I. Molecular Alterations in the Cerebellum of Sporadic Creutzfeldt-Jakob Disease Subtypes with DJ-1 as a Key Regulator of Oxidative Stress. Mol Neurobiol 2016; 55:517-537. [PMID: 27975168 DOI: 10.1007/s12035-016-0294-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/08/2016] [Indexed: 12/15/2022]
Abstract
Cerebellar damage and granular and Purkinje cell loss in sporadic Creutzfeldt-Jakob disease (sCJD) highlight a critical involvement of the cerebellum during symptomatic progression of the disease. In this project, global proteomic alterations in the cerebellum of brain from the two most prevalent subtypes (MM1 and VV2) of sCJD were studied. Two-dimensional gel electrophoresis (2DE) coupled mass spectrometric identification revealed 40 proteins in MM1 and 43 proteins in VV2 subtype to be differentially expressed. Of those, 12 proteins showed common differential expression in their expression between two subtypes. Differentially expressed proteins mainly belonged to (i) cell cycle, gene expression and cell death; (ii) cellular stress response/oxidative stress (OS) and (iii) signal transduction and synaptic functions, related molecular functions. We verified 10 differentially expressed proteins at transcriptional and translational level as well. Interestingly, protein deglycase DJ-1 (an antioxidative protein) showed an increase in its messenger RNA (mRNA) expression in both MM1 and VV2 subtypes but protein expression only in VV2 subtype in cerebellum of sCJD patients. Nuclear translocalization of DJ-1 confirmed its expressional alteration due to OS in sCJD. Downstream experiments showed the activation of nuclear factor erythroid-2 related factor 2 (Nrf2)/antioxidative response element (ARE) pathway. DJ-1 protein concentration was significantly increased during the clinical phase in cerebrospinal fluid of sCJD patients and also at presymptomatic and symptomatic stages in cerebellum of humanized PrP transgenic mice inoculated with sCJD (MM1 and VV2) brain. These results suggest the implication of oxidative stress during the pathophysiology of sCJD.
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Affiliation(s)
- Waqas Tahir
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Saima Zafar
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany.
| | - Franc Llorens
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Amandeep Singh Arora
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Katrin Thüne
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Matthias Schmitz
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Nadine Gotzmann
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
| | - Niels Kruse
- Institute of Neuropathology, University Medical Center Goettingen (UMG), Robert-Koch-Str. 40, 37075, Goettingen, Germany
| | - Brit Mollenhauer
- Institute of Neuropathology, University Medical Center Goettingen (UMG), Robert-Koch-Str. 40, 37075, Goettingen, Germany
| | - Juan Maria Torres
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Carretera de Algete a El Casar Km. 8,1 S/N, 28130, Valdeolmos, Madrid, Spain
| | - Olivier Andréoletti
- Institut National de la Recherche Agronomique/Ecole Nationale Vétérinaire, Toulouse, France
| | - Isidre Ferrer
- Institute of Neuropathology, Hospitalet de Llobregat, IDIBELL-University Hospital Bellvitge, University of Barcelona, Barcelona, Spain.,Network Center for Biomedical Research of Neurodegenerative Diseases (CIBERNED), Ministry of Health, Institute Carlos III, Madrid, Spain
| | - Inga Zerr
- Department of Neurology, University Medical Center Goettingen (UMG) and German Center for Neurodegenerative Diseases (DZNE) Goettingen, Robert-Koch-Str., 40, 37075, Goettingen, Germany
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Cavusoglu N, Delattre C, Donovan M, Bourassa S, Droit A, El Rawadi C, Jourdain R, Bernard D. iTRAQ-based quantitative proteomics of stratum corneum of dandruff scalp reveals new insights into its aetiology and similarities with atopic dermatitis. Arch Dermatol Res 2016; 308:631-642. [PMID: 27600510 DOI: 10.1007/s00403-016-1681-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 08/12/2016] [Accepted: 08/30/2016] [Indexed: 12/16/2022]
Abstract
The study aimed at detecting differentially expressed proteins in the stratum corneum of dandruff versus non-dandruff scalps to better understand dandruff aetiology. iTRAQ-based quantitative proteomic analysis revealed a total of 68 differentially expressed biomarkers. A detailed analysis of their known physiological functions provided new insights into the affected metabolic pathways of a dandruff scalp. Dandruff scalp showed (1) profound changes in the expression and maturation of structural and epidermal differentiation related proteins, that are responsible for the integrity of the skin, (2) altered relevant factors that regulate skin hydration, and (3) an imbalanced physiological protease-protease inhibitor ratio. Stratum corneum proteins with antimicrobial activity, mainly those derived from sweat and sebaceous glands were also found modified. Comparing our data with those reported for atopic dermatitis revealed that about 50 % of the differentially expressed proteins in the superficial layers of the stratum corneum from dandruff and atopic dermatitis are identical.
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Affiliation(s)
- Nükhet Cavusoglu
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France.
| | - Caroline Delattre
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Mark Donovan
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Sylvie Bourassa
- Centre de recherche du CHU de Québec, Plate-forme protéomique, 2705, Boulevard Laurier, QC, Canada
| | - Arnaud Droit
- Centre de recherche du CHU de Québec, Plate-forme protéomique, 2705, Boulevard Laurier, QC, Canada
| | - Charles El Rawadi
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Roland Jourdain
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
| | - Dominique Bernard
- L'Oreal Research and Innovation, 1 Avenue Eugène Schueller, 93600, Aulnay-Sous-Bois, France
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Liu C, Vojnovic D, Kochevar IE, Jurkunas UV. UV-A Irradiation Activates Nrf2-Regulated Antioxidant Defense and Induces p53/Caspase3-Dependent Apoptosis in Corneal Endothelial Cells. Invest Ophthalmol Vis Sci 2016; 57:2319-27. [PMID: 27127932 PMCID: PMC4855825 DOI: 10.1167/iovs.16-19097] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Purpose To examine whether Nrf2-regulated antioxidant defense and p53 are activated in human corneal endothelial cells (CEnCs) by environmental levels of ultraviolet A (UV-A), a known stimulator of oxidative stress. Methods Immortalized human CEnCs (HCEnCi) were exposed to UV-A fluences of 2.5, 5, 10, or 25 J/cm2, then allowed to recover for 3 to 24 hours. Control HCEnCi did not receive UV-A. Reactive oxygen species (ROS) were measured using H2DCFDA. Cell cytotoxicity was evaluated by lactate dehydrogenase (LDH) release. Levels of Nrf2, HO-1, NQO-1, p53, and caspase3 were detected by immunnoblotting or real-time PCR. Activated caspase3 was measured by immunoblotting and a fluorescence assay. Results Exposure of HCEnCi to 5, 10, and 25 J/cm2 UV-A increased ROS levels compared with controls. Nrf2, HO-1, and NQO-1 mRNA increased 1.7- to 3.2-fold at 3 and 6 hours after irradiation with 2.5 and 5 J/cm2 UV-A. At 6 hours post irradiation, UV-A (5 J/cm2) enhanced nuclear Nrf2 translocation. At 24 hours post treatment, UV-A (5, 10, and 25 J/cm2) produced a 1.8- to 2.8-fold increase in phospho-p53 and a 2.6- to 6.0-fold increase in activated caspase3 compared with controls, resulting in 20% to 42% cell death. Conclusions Lower fluences of UV-A induce Nrf2-regulated antioxidant defense and higher fluences activate p53 and caspase3, indicating that even near-environmental levels of UV-A may affect normal CEnCs. This data suggest that UV-A may especially damage cells deficient in antioxidant defense, and thus may be involved in the etiology of Fuchs' endothelial corneal dystrophy (FECD).
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Affiliation(s)
- Cailing Liu
- Schepens Eye Research Institute Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States
| | - Dijana Vojnovic
- Schepens Eye Research Institute Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States
| | - Irene E Kochevar
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States
| | - Ula V Jurkunas
- Schepens Eye Research Institute Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States
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Halilovic A, Schmedt T, Benischke AS, Hamill C, Chen Y, Santos JH, Jurkunas UV. Menadione-Induced DNA Damage Leads to Mitochondrial Dysfunction and Fragmentation During Rosette Formation in Fuchs Endothelial Corneal Dystrophy. Antioxid Redox Signal 2016; 24:1072-83. [PMID: 26935406 PMCID: PMC4931310 DOI: 10.1089/ars.2015.6532] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 02/11/2016] [Accepted: 02/29/2016] [Indexed: 12/13/2022]
Abstract
AIMS Fuchs endothelial corneal dystrophy (FECD), a leading cause of age-related corneal edema requiring transplantation, is characterized by rosette formation of corneal endothelium with ensuing apoptosis. We sought to determine whether excess of mitochondrial reactive oxygen species leads to chronic accumulation of oxidative DNA damage and mitochondrial dysfunction, instigating cell death. RESULTS We modeled the pathognomonic rosette formation of postmitotic corneal cells by increasing endogenous cellular oxidative stress with menadione (MN) and performed a temporal analysis of its effect in normal (HCEnC, HCECi) and FECD (FECDi) cells and ex vivo specimens. FECDi and FECD ex vivo specimens exhibited extensive mtDNA and nDNA damage as detected by quantitative PCR. Exposure to MN triggered an increase in mitochondrial superoxide levels and led to mtDNA and nDNA damage, while DNA amplification was restored with NAC pretreatment. Furthermore, MN exposure led to a decrease in ΔΨm and adenosine triphosphate levels in normal cells, while FECDi exhibited mitochondrial dysfunction at baseline. Mitochondrial fragmentation and cytochrome c release were detected in FECD tissue and after MN treatment of HCEnCs. Furthermore, cleavage of caspase-9 and caspase-3 followed MN-induced cytochrome c release in HCEnCs. INNOVATION This study provides the first line of evidence that accumulation of oxidative DNA damage leads to rosette formation, loss of functionally intact mitochondria via fragmentation, and subsequent cell death during postmitotic cell degeneration of ocular tissue. CONCLUSION MN induced rosette formation, along with mtDNA and nDNA damage, mitochondrial dysfunction, and fragmentation, leading to activation of the intrinsic apoptosis via caspase cleavage and cytochrome c release. Antioxid. Redox Signal. 24, 1072-1083.
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Affiliation(s)
- Adna Halilovic
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
| | - Thore Schmedt
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
| | - Anne-Sophie Benischke
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
| | - Cecily Hamill
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
| | - Yuming Chen
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
| | - Janine Hertzog Santos
- 2 Department of Pharmacology and Physiology, New Jersey Medical School Rutgers, Rutgers University , New Jersey
| | - Ula V Jurkunas
- 1 Department of Ophthalmology, Schepens Eye Research Institute, Massachusetts Eye and Ear Infirmary (MEEI), Harvard Medical School , Boston, Massachusetts
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Schumann C, Chan S, Khalimonchuk O, Khal S, Moskal V, Shah V, Alani AWG, Taratula O, Taratula O. Mechanistic Nanotherapeutic Approach Based on siRNA-Mediated DJ-1 Protein Suppression for Platinum-Resistant Ovarian Cancer. Mol Pharm 2016; 13:2070-83. [PMID: 27170529 DOI: 10.1021/acs.molpharmaceut.6b00205] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report an efficient therapeutic modality for platinum resistant ovarian cancer based on siRNA-mediated suppression of a multifunctional DJ-1 protein that is responsible for the proliferation, growth, invasion, oxidative stress, and overall survival of various cancers. The developed therapeutic strategy can work alone or in concert with a low dose of the first line chemotherapeutic agent cisplatin, to elicit a maximal therapeutic response. To achieve an efficient DJ-1 knockdown, we constructed the polypropylenimine dendrimer-based nanoplatform targeted to LHRH receptors overexpressed on ovarian cancer cells. The quantitative PCR and Western immunoblotting analysis revealed that the delivered DJ-1 siRNA downregulated the expression of targeted mRNA and corresponding protein by more than 80% in various ovarian cancer cells. It was further demonstrated that siRNA-mediated DJ-1 suppression dramatically impaired proliferation, viability, and migration of the employed ovarian cancer cells. Finally, the combinatorial approach led to the most pronounced therapeutic response in all the studied cell lines, outperforming both siRNA-mediated DJ-1 knockdown and cisplatin treatment alone. It is noteworthy that the platinum-resistant cancer cells (A2780/CDDP) with the highest basal level of DJ-1 protein are most susceptible to the developed therapy and this susceptibility declines with decreasing basal levels of DJ-1. Finally, we interrogate the molecular underpinnings of the DJ-1 knockdown effects in the treatment of the ovarian cancer cells. By using various experimental techniques, it was revealed that DJ-1 depletion (1) decreases the activity of the Akt pathway, thereby reducing cellular proliferation and migration and increasing the antiproliferative effect of cisplatin on ovarian cancer cells; (2) enhances the activity of p53 tumor suppressor protein therefore restoring cell cycle arrest functionality and upregulating the Bax-caspase pathway, triggering cell death; and (3) weakens the cellular defense mechanisms against inherited oxidative stress thereby increasing toxic intracellular radicals and amplifying the reactive oxygen species created by the administration of cisplatin.
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Affiliation(s)
- Canan Schumann
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Stephanie Chan
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Oleh Khalimonchuk
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
| | - Shannon Khal
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Vitaliya Moskal
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Vidhi Shah
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Adam W G Alani
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Olena Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University , Portland, Oregon 97201, United States
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Fernandez-Caggiano M, Schröder E, Cho HJ, Burgoyne J, Barallobre-Barreiro J, Mayr M, Eaton P. Oxidant-induced Interprotein Disulfide Formation in Cardiac Protein DJ-1 Occurs via an Interaction with Peroxiredoxin 2. J Biol Chem 2016; 291:10399-410. [PMID: 26945066 DOI: 10.1074/jbc.m115.699850] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Indexed: 12/24/2022] Open
Abstract
The role and responses of the dimeric DJ-1 protein to cardiac oxidative stress is incompletely understood. H2O2 induces a 50-kDa DJ-1 interprotein homodimer disulfide, known to form between Cys-53 on each subunit. A trimeric 75-kDa DJ-1 complex that mass spectrometry shows contained 2-Cys peroxiredoxin also formed and precedes the appearance of the disulfide dimer. These observations may represent peroxiredoxin sensing and transducing the oxidant signal to DJ-1. The dimeric disulfide DJ-1 complex was stabilized by auranofin, suggesting that thioredoxin recycles it in cells. Higher concentrations of H2O2 concomitantly induce DJ-1 Cys-106 hyperoxidation (sulfination or sulfonation) in myocytes, perfused heart, or HEK cells. An oxidation-resistant C53A DJ-1 shows potentiated H2O2-induced Cys-106 hyperoxidation. DJ-1 also forms multiple disulfides with unknown target proteins during H2O2 treatment, the formation of which is also potentiated in cells expressing the C53A mutant. This suggests that the intersubunit disulfide induces a conformational change that limits Cys-106 forming heterodisulfide protein complexes or from hyperoxidizing. High concentrations of H2O2 also induce cell death, with DJ-1 Cys-106 sulfonation appearing causal in these events, as expressionof C53A DJ-1 enhanced both Cys-106 sulfonation and cell death. Nonetheless, expression of the DJ-1 C106A mutant, which fully prevents hyperoxidation, also showed exacerbated cell death responses to H2O2 A rational explanation for these findings is that DJ-1 Cys-106 forms disulfides with target proteins to limit oxidant-induced cell death. However, when Cys-106 is hyperoxidized, formation of these potentially protective heterodimeric disulfide complexes is limited, and so cell death is exacerbated.
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Affiliation(s)
- Mariana Fernandez-Caggiano
- From the King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital, London SE1 7EH, United Kingdom and
| | - Ewald Schröder
- From the King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital, London SE1 7EH, United Kingdom and
| | - Hyun-Ju Cho
- From the King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital, London SE1 7EH, United Kingdom and
| | - Joseph Burgoyne
- From the King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital, London SE1 7EH, United Kingdom and
| | - Javier Barallobre-Barreiro
- King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The James Black Centre, King's College Hospital, London SE5 9NU, United Kingdom
| | - Manuel Mayr
- King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The James Black Centre, King's College Hospital, London SE5 9NU, United Kingdom
| | - Philip Eaton
- From the King's College London, Cardiovascular Division, The British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital, London SE1 7EH, United Kingdom and
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Nabavi SF, Barber AJ, Spagnuolo C, Russo GL, Daglia M, Nabavi SM, Sobarzo-Sánchez E. Nrf2 as molecular target for polyphenols: A novel therapeutic strategy in diabetic retinopathy. Crit Rev Clin Lab Sci 2016; 53:293-312. [PMID: 26926494 DOI: 10.3109/10408363.2015.1129530] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diabetic retinopathy is a microvascular complication of diabetes that is considered one of the leading causes of blindness among adults. More than 4.4 million people suffer from this disorder throughout the world. Growing evidence suggests that oxidative stress plays a crucial role in the pathophysiology of diabetic retinopathy. Nuclear factor erythroid 2-related factor 2 (Nrf2), a redox sensitive transcription factor, plays an essential protective role in regulating the physiological response to oxidative and electrophilic stress via regulation of multiple genes encoding antioxidant proteins and phase II detoxifying enzymes. Many studies suggest that dozens of natural compounds, including polyphenols, can supress oxidative stress and inflammation through targeting Nrf2 and consequently activating the antioxidant response element-related cytoprotective genes. Therefore, Nrf2 may provide a new therapeutic target for treatment of diabetic retinopathy. In the present article, we will focus on the role of Nrf2 in diabetic retinopathy and the ability of polyphenols to target Nrf2 as a therapeutic strategy.
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Affiliation(s)
- Seyed Fazel Nabavi
- a Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Alistair J Barber
- b Department of Ophthalmology , Penn State Hershey Eye Center, Penn State Hershey College of Medicine , Hershey , PA , USA
| | - Carmela Spagnuolo
- c Institute of Food Sciences, National Research Council , Avellino , Italy
| | - Gian Luigi Russo
- c Institute of Food Sciences, National Research Council , Avellino , Italy
| | - Maria Daglia
- d Department of Drug Sciences , Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia , Pavia , Italy , and
| | - Seyed Mohammad Nabavi
- a Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Eduardo Sobarzo-Sánchez
- e Laboratory of Pharmaceutical Chemistry , Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago De Compostela , Santiago De Compostela , Spain
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