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Chen J, Zhao R, Wang Y, Xiao H, Lin W, Diao M, He S, Mei P, Liao Y. G protein-coupled estrogen receptor activates PI3K/AKT/mTOR signaling to suppress ferroptosis via SREBP1/SCD1-mediated lipogenesis. Mol Med 2024; 30:28. [PMID: 38383297 PMCID: PMC10880371 DOI: 10.1186/s10020-023-00763-x] [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: 08/26/2023] [Accepted: 11/25/2023] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Lung cancer is the leading cause of cancer-related death worldwide. The sex differences in the occurrence and fatality rates of non-small cell lung cancer (NSCLC), along with its association with estrogen dependence, suggest that estrogen receptors (ERs) contribute to the development of NSCLC. However, the influence of G protein-coupled estrogen receptor (GPER1) on NSCLC remains to be determined. Escape from ferroptosis is one of the hallmarks of tumor discovered in recent years. In this context, the present study evaluated whether GPER1 promotes NSCLC progression by preventing ferroptosis, and the underlying mechanism through which GPER1 protects against ferroptosis was also explored. METHODS The effects of GPER1 on the cytotoxicity of H2O2, the ferroptosis inducer RSL3, and Erastin were assessed using the CCK8 assay and plate cloning. Lipid peroxidation levels were measured based on the levels of MDA and BODIPY™581/591C11. GPER1 overexpression and knockdown were performed and G1 was used, and the expression of SCD1 and PI3K/AKT/mTOR signaling factors was measured. Immunofluorescence analysis and immunohistochemistry were performed on paired specimens to measure the correlation between the expression of GPER1 and SCD1 in NSCLC tissues. The effect of GPER1 on the cytotoxicity of cisplatin was measured in vitro using the CCK8 assay and in vivo using xenograft tumor models. RESULTS GPER1 and G1 alleviated the cytotoxicity of H2O2, reduced sensitivity to RSL3, and impaired lipid peroxidation in NSCLC tissues. In addition, GPER1 and G1 promoted the protein and mRNA expression of SCD1 and the activation of PI3K/AKT/mTOR signaling. GPER1 and SCD1 expression were elevated and positively correlated in NSCLC tissues, and high GPER1 expression predicted a poor prognosis. GPER1 knockdown enhanced the antitumor activity of cisplatin in vitro and in vivo. CONCLUSION GPER1 prevents ferroptosis in NSCLC by promoting the activation of PI3K/AKT/mTOR signaling, thereby inducing SCD1 expression. Therefore, treatments targeting GPER1 combined with cisplatin would exhibit better antitumor effects.
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Affiliation(s)
- Jiaping Chen
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Cardiothoracic Surgery, Third Affiliated Hospital of Kunming Medical University (Yunnan Cancer Hospital), Kunming, China
| | - Rong Zhao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yangwei Wang
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Han Xiao
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Wei Lin
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Mingxin Diao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shiwen He
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peiyuan Mei
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yongde Liao
- Department of Thoracic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Lei XL, Yang QL, Wei YZ, Qiu X, Zeng HY, Yan AM, Peng K, Li YL, Rao FQ, Chen FH, Xiang L, Wu KC. Identification of a novel ferroptosis-related gene signature associated with retinal degeneration induced by light damage in mice. Heliyon 2023; 9:e23002. [PMID: 38144322 PMCID: PMC10746433 DOI: 10.1016/j.heliyon.2023.e23002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 11/13/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023] Open
Abstract
Background Neurodegenerative retinal diseases such as retinitis pigmentosa are serious disorders that may cause irreversible visual impairment. Ferroptosis is a novel type of programmed cell death, and the involvement of ferroptosis in retinal degeneration is still unclear. This study aimed to investigate the related ferroptosis genes in a mice model of retinal degeneration induced by light damage. Methods A public dataset of GSE10528 deriving from the Gene Expression Omnibus database was analyzed to identify the differentially expressed genes (DEGs). Gene set enrichment analysis between light damage and control group was conducted. The differentially expressed ferroptosis-related genes (DE-FRGs) were subsequently identified by intersecting the DEGs with a ferroptosis genes dataset retrieved from the FerrDb database. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were further performed using the DE-FRGs. A protein-protein interaction (PPI) network was constructed to identify hub ferroptosis-related genes (HFRGs). The microRNAs (miRNAs)-HFRGs, transcription factors (TFs)-HFRGs networks as well as target drugs potentially interacting with HFRGs were analyzed utilizing bioinformatics algorithms. Results A total of 932 DEGs were identified between the light damage and control group. Among these, 25 genes were associated with ferroptosis. GO and KEGG analyses revealed that these DE-FRGs were mainly enriched in apoptotic signaling pathway, response to oxidative stress and autophagy, ferroptosis, necroptosis and cytosolic DNA-sensing pathway. Through PPI network analysis, six hub ferroptosis-related genes (Jun, Stat3, Hmox1, Atf3, Hspa5 and Ripk1) were ultimately identified. All of them were upregulated in light damage retinas, as verified by the GSE146176 dataset. Bioinformatics analyses predicated that 116 miRNAs, 23 TFs and several potential therapeutic compounds might interact with the identified HFRGs. Conclusion Our study may provide novel potential biomarkers, therapeutic targets and new insights into the ferroptosis landscape in retinal neurodegenerative diseases.
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Affiliation(s)
- Xin-Lan Lei
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
- Aier Eye Hospital of Wuhan University, Wuhan, China
| | - Qiao-Li Yang
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yong-Zhao Wei
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Xu Qiu
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Hui-Yi Zeng
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Ai-Min Yan
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Kai Peng
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Ying-Lin Li
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Feng-Qin Rao
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Feng-Hua Chen
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Lue Xiang
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Kun-Chao Wu
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
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Henpita C, Vyas R, Healy CL, Kieu TL, Gurkar AU, Yousefzadeh MJ, Cui Y, Lu A, Angelini LA, O'Kelly RD, McGowan SJ, Chandrasekhar S, Vanderpool RR, Hennessy‐Wack D, Ross MA, Bachman TN, McTiernan C, Pillai SPS, Ladiges W, Lavasani M, Huard J, Beer‐Stolz D, St. Croix CM, Watkins SC, Robbins PD, Mora AL, Kelley EE, Wang Y, O'Connell TD, Niedernhofer LJ. Loss of DNA repair mechanisms in cardiac myocytes induce dilated cardiomyopathy. Aging Cell 2023; 22:e13782. [PMID: 36734200 PMCID: PMC10086531 DOI: 10.1111/acel.13782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 12/06/2022] [Accepted: 12/19/2022] [Indexed: 02/04/2023] Open
Abstract
Cardiomyopathy is a progressive disease of the myocardium leading to impaired contractility. Genotoxic cancer therapies are known to be potent drivers of cardiomyopathy, whereas causes of spontaneous disease remain unclear. To test the hypothesis that endogenous genotoxic stress contributes to cardiomyopathy, we deleted the DNA repair gene Ercc1 specifically in striated muscle using a floxed allele of Ercc1 and mice expressing Cre under control of the muscle-specific creatinine kinase (Ckmm) promoter or depleted systemically (Ercc1-/D mice). Ckmm-Cre+/- ;Ercc1-/fl mice expired suddenly of heart disease by 7 months of age. As young adults, the hearts of Ckmm-Cre+/- ;Ercc1-/fl mice were structurally and functionally normal, but by 6-months-of-age, there was significant ventricular dilation, wall thinning, interstitial fibrosis, and systolic dysfunction indicative of dilated cardiomyopathy. Cardiac tissue from the tissue-specific or systemic model showed increased apoptosis and cardiac myocytes from Ckmm-Cre+/- ;Ercc1-/fl mice were hypersensitive to genotoxins, resulting in apoptosis. p53 levels and target gene expression, including several antioxidants, were increased in cardiac tissue from Ckmm-Cre+/- ;Ercc1-/fl and Ercc1-/D mice. Despite this, cardiac tissue from older mutant mice showed evidence of increased oxidative stress. Genetic or pharmacologic inhibition of p53 attenuated apoptosis and improved disease markers. Similarly, overexpression of mitochondrial-targeted catalase improved disease markers. Together, these data support the conclusion that DNA damage produced endogenously can drive cardiac disease and does so mechanistically via chronic activation of p53 and increased oxidative stress, driving cardiac myocyte apoptosis, dilated cardiomyopathy, and sudden death.
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Affiliation(s)
- Chathurika Henpita
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Rajesh Vyas
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Chastity L. Healy
- Department of Integrative Biology and PhysiologyUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Tra L. Kieu
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Aditi U. Gurkar
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
- Division of Geriatric Medicine, Aging InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Matthew J. Yousefzadeh
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Yuxiang Cui
- Department of ChemistryUniversity of California, RiversideRiversideCaliforniaUSA
| | - Aiping Lu
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Steadman Philippon Research InstituteVailColoradoUSA
| | - Luise A. Angelini
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Ryan D. O'Kelly
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Sara J. McGowan
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Sanjay Chandrasekhar
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Rebecca R. Vanderpool
- Division of Cardiology, Heart and Vascular InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Danielle Hennessy‐Wack
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Mark A. Ross
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Timothy N. Bachman
- Division of Pulmonary, Allergy, and Critical Care MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Charles McTiernan
- Division of Cardiology, Heart and Vascular InstituteUniversity of PittsburghPittsburghPennsylvaniaUSA
| | | | - Warren Ladiges
- Department of Comparative MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Mitra Lavasani
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Physical Medicine and RehabilitationNorthwestern University and Shirley Ryan Ability LabChicagoIllinoisUSA
| | - Johnny Huard
- Department of Orthopedic SurgeryUniversity of PittsburghPittsburghPennsylvaniaUSA
- Steadman Philippon Research InstituteVailColoradoUSA
| | - Donna Beer‐Stolz
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Claudette M. St. Croix
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Simon C. Watkins
- Center for Biologic ImagingUniversity of PittsburghPittsburghPennsylvaniaUSA
- Department of Cell BiologyUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Paul D. Robbins
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
| | - Ana L. Mora
- Division of Pulmonary, Allergy, and Critical Care MedicineUniversity of PittsburghPittsburghPennsylvaniaUSA
- Division of Pulmonary, Critical Care and Sleep Medicine, College of MedicineThe Ohio State UniversityColumbusOhioUSA
| | - Eric E. Kelley
- Department of Physiology and PharmacologyWest Virginia UniversityMorgantownWest VirginiaUSA
| | - Yinsheng Wang
- Department of ChemistryUniversity of California, RiversideRiversideCaliforniaUSA
| | - Timothy D. O'Connell
- Department of Integrative Biology and PhysiologyUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Laura J. Niedernhofer
- Department of Biochemistry, Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
- Department of Molecular MedicineScripps Research InstituteJupiterFloridaUSA
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Tiberi J, Cesarini V, Stefanelli R, Canterini S, Fiorenza MT, Rosa PL. Sex differences in antioxidant defence and the regulation of redox homeostasis in physiology and pathology. Mech Ageing Dev 2023; 211:111802. [PMID: 36958540 DOI: 10.1016/j.mad.2023.111802] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023]
Abstract
Reactive oxygen species (ROS) is a term that defines a group of unstable compounds derived from exogenous sources or endogenous metabolism. Under physiological conditions, low levels of ROS play a key role in the regulation of signal transduction- or transcription-mediated cellular responses. In contrast, excessive and uncontrolled loading of ROS results in a pathological state known as oxidative stress (OS), a leading contributor to aging and a pivotal factor for the onset and progression of many disorders. Evolution has endowed cells with an antioxidant system involved in stabilizing ROS levels to a specific threshold, preserving ROS-induced signalling function and limiting negative side effects. In mammals, a great deal of evidence indicates that females defence against ROS is more proficient than males, determining a longer lifespan and lower incidence of most chronic diseases. In this review, we will summarize the most recent sex-related differences in the regulation of redox homeostasis. We will highlight the peculiar aspects of the antioxidant defence in sex-biased diseases whose onset or progression is driven by OS, and we will discuss the molecular, genetic, and evolutionary determinants of female proficiency to cope with ROS.
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Affiliation(s)
- Jessica Tiberi
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; PhD program in Behavioral Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Valeriana Cesarini
- Department of Biomedicine Institute of Translational Pharmacology (IFT), National Research Council (CNR), Rome, Italy
| | - Roberta Stefanelli
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy
| | - Sonia Canterini
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Maria Teresa Fiorenza
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Piergiorgio La Rosa
- Division of Neuroscience, Department of Psychology, Sapienza University of Rome, Rome, Italy; European Center for Brain Research, IRCCS Fondazione Santa Lucia, Rome, Italy.
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Tian X, Lou S, Shi R. From mitochondria to sarcopenia: role of 17β-estradiol and testosterone. Front Endocrinol (Lausanne) 2023; 14:1156583. [PMID: 37152937 PMCID: PMC10157222 DOI: 10.3389/fendo.2023.1156583] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/03/2023] [Indexed: 05/09/2023] Open
Abstract
Sarcopenia, characterized by a loss of muscle mass and strength with aging, is prevalent in older adults. Although the exact mechanisms underlying sarcopenia are not fully understood, evidence suggests that the loss of mitochondrial integrity in skeletal myocytes has emerged as a pivotal contributor to the complex etiology of sarcopenia. Mitochondria are the primary source of ATP production and are also involved in generating reactive oxygen species (ROS), regulating ion signals, and initiating apoptosis signals in muscle cells. The accumulation of damaged mitochondria due to age-related impairments in any of the mitochondrial quality control (MQC) processes, such as proteostasis, biogenesis, dynamics, and mitophagy, can contribute to the decline in muscle mass and strength associated with aging. Interestingly, a decrease in sex hormones (e.g., 17β-estradiol and testosterone), which occurs with aging, has also been linked to sarcopenia. Indeed, 17β-estradiol and testosterone targeted mitochondria and exhibited activities in regulating mitochondrial functions. Here, we overview the current literature on the key mechanisms by which mitochondrial dysfunction contribute to the development and progression of sarcopenia and the potential modulatory effects of 17β-estradiol and testosterone on mitochondrial function in this context. The advance in its understanding will facilitate the development of potential therapeutic agents to mitigate and manage sarcopenia.
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Kubo Y, Gonzalez JAH, Beckmann R, Weiler M, Pahlavani H, Saldivar MC, Szymanski K, Rosenhain S, Fragoulis A, Leeflang S, Slowik A, Gremse F, Wolf M, Mirzaali MJ, Zadpoor AA, Wruck CJ, Pufe T, Tohidnezhad M, Jahr H. Nuclear factor erythroid 2-related factor 2 (Nrf2) deficiency causes age-dependent progression of female osteoporosis. BMC Musculoskelet Disord 2022; 23:1015. [PMID: 36434613 PMCID: PMC9700883 DOI: 10.1186/s12891-022-05942-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 11/02/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Nuclear factor erythroid 2-related factor 2 (Nrf2) is a crucial transcription factor for cellular redox homeostasis. The association of Nrf2 with elderly female osteoporotic has yet to be fully described. The aim was to elucidate a potential age-dependent Nrf2 contribution to female osteoporosis in mice. METHODS Eighteen female wild type (WT) and 16 Nrf2-knockout (KO) mice were sacrificed at different ages (12 weeks = young mature adult and 90 weeks = old) to analyze their femurs. The morphological properties (trabecular and cortical) were evaluated by micro-computed tomography (μCT) and compared to gold standard histochemistry analysis. The quasi-static compression tests were performed to calculate the mechanical properties of bones. Additionally, the population of bone resorbing cells and aromatase expression by osteocytes was immunohistochemically evaluated and empty osteocyte lacunae was counted in cortical bone. RESULTS Old Nrf2-KO mice revealed a significantly reduced trabecular bone mineral density (BMD), cortical thickness, cortical area, and bone fraction compared to old WT mice, regardless of no significant difference in skeletally mature young adult mice between WT and KO. Specifically, while all old WT mice showed thin metaphyseal trabeculae, trabecular bone was completely absent in 60% of old KO mice. Additionally, old KO mice showed significantly more osteoclast-like cells and fewer aromatase-positive osteocytes than WT mice, whereas the occurrence of empty osteocyte lacunae did not differ between both groups. Nrf2-KO mice further showed an age-dependently reduced fracture resilience compared to age-matched WT mice. CONCLUSION Our results suggest that chronic Nrf2 loss can lead to age-dependent progression of female osteoporosis.
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Affiliation(s)
- Yusuke Kubo
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Jesus Abraham Herrera Gonzalez
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Rainer Beckmann
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Marek Weiler
- grid.412301.50000 0000 8653 1507Institute for Experimental Molecular Imaging, Helmholtz Institute for Biomedical Engineering, Uniklinik RWTH Aachen, Forckenbeckstraße 55, 52074 Aachen, Germany
| | - Helda Pahlavani
- grid.5292.c0000 0001 2097 4740Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Mauricio Cruz Saldivar
- grid.5292.c0000 0001 2097 4740Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Katharina Szymanski
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Stefanie Rosenhain
- grid.412301.50000 0000 8653 1507Institute for Experimental Molecular Imaging, Helmholtz Institute for Biomedical Engineering, Uniklinik RWTH Aachen, Forckenbeckstraße 55, 52074 Aachen, Germany
| | - Athanassios Fragoulis
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Sander Leeflang
- grid.5292.c0000 0001 2097 4740Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Alexander Slowik
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Felix Gremse
- grid.412301.50000 0000 8653 1507Institute for Experimental Molecular Imaging, Helmholtz Institute for Biomedical Engineering, Uniklinik RWTH Aachen, Forckenbeckstraße 55, 52074 Aachen, Germany
| | - Michael Wolf
- grid.412301.50000 0000 8653 1507Department of Orthodontics, Uniklinik RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany
| | - Mohammad Javad Mirzaali
- grid.5292.c0000 0001 2097 4740Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Amir Abbas Zadpoor
- grid.5292.c0000 0001 2097 4740Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology (TU Delft), Mekelweg 2, 2628 CD Delft, The Netherlands
| | - Christoph Jan Wruck
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Thomas Pufe
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Mersedeh Tohidnezhad
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany
| | - Holger Jahr
- grid.412301.50000 0000 8653 1507Department of Anatomy and Cell Biology, Uniklinik RWTH Aachen, Wendlingweg 2, 52074 Aachen, Germany ,grid.1957.a0000 0001 0728 696XInstitute of Structural Mechanics and Lightweight Design, RWTH Aachen University, Wüllnerstraße 7, 52062 Aachen, Germany
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D’Amico R, Cordaro M, Fusco R, Peritore AF, Genovese T, Gugliandolo E, Crupi R, Mandalari G, Caccamo D, Cuzzocrea S, Di Paola R, Siracusa R, Impellizzeri D. Consumption of Cashew ( Anacardium occidentale L.) Nuts Counteracts Oxidative Stress and Tissue Inflammation in Mild Hyperhomocysteinemia in Rats. Nutrients 2022; 14:1474. [PMID: 35406088 PMCID: PMC9002620 DOI: 10.3390/nu14071474] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 02/01/2023] Open
Abstract
Hyperhomocysteinemia (HHcy) is a methionine metabolism problem that causes a variety of inflammatory illnesses. Oxidative stress is among the processes thought to be involved in the pathophysiology of the damage produced by HHcy. HHcy is likely to involve the dysfunction of several organs, such as the kidney, liver, or gut, which are currently poorly understood. Nuts are regarded as an important part of a balanced diet since they include protein, good fatty acids, and critical nutrients. The aim of this work was to evaluate the anti-inflammatory and antioxidant effects of cashew nuts in HHcy induced by oral methionine administration for 30 days, and to examine the possible pathways involved. In HHcy rats, cashew nuts (100 mg/kg orally, daily) were able to counteract clinical biochemical changes, oxidative and nitrosative stress, reduced antioxidant enzyme levels, lipid peroxidation, proinflammatory cytokine release, histological tissue injuries, and apoptosis in the kidney, colon, and liver, possibly by the modulation of the antioxidant nuclear factor erythroid 2-related factor 2 NRF-2 and inflammatory nuclear factor NF-kB pathways. Thus, the results suggest that the consumption of cashew nuts may be beneficial for the treatment of inflammatory conditions associated with HHcy.
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Affiliation(s)
- Ramona D’Amico
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
| | - Marika Cordaro
- Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria, 98125 Messina, Italy; (M.C.); (D.C.)
| | - Roberta Fusco
- Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy;
| | - Alessio Filippo Peritore
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
| | - Tiziana Genovese
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
| | - Enrico Gugliandolo
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (E.G.); (R.C.)
| | - Rosalia Crupi
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (E.G.); (R.C.)
| | - Giuseppina Mandalari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
| | - Daniela Caccamo
- Department of Biomedical, Dental and Morphological and Functional Imaging, University of Messina, Via Consolare Valeria, 98125 Messina, Italy; (M.C.); (D.C.)
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Blvd, St. Louis, MO 63104, USA
| | - Rosanna Di Paola
- Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy; (E.G.); (R.C.)
| | - Rosalba Siracusa
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
| | - Daniela Impellizzeri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Via F. Stagno D’Alcontres 31, 98166 Messina, Italy; (R.D.); (A.F.P.); (T.G.); (G.M.); (R.S.); (D.I.)
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Darawsha A, Trachtenberg A, Levy J, Sharoni Y. The Protective Effect of Carotenoids, Polyphenols, and Estradiol on Dermal Fibroblasts under Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10122023. [PMID: 34943127 PMCID: PMC8698602 DOI: 10.3390/antiox10122023] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 02/07/2023] Open
Abstract
Skin ageing is influenced by several factors including environmental exposure and hormonal changes. Reactive oxygen species (ROS), which mediate many of the effects of these factors, induce inflammatory processes in the skin and increase the production of matrix metalloproteinases (MMPs) in dermal fibroblasts, which leads to collagen degradation. Several studies have shown the protective role of estrogens and a diet rich in fruits and vegetables on skin physiology. Previous studies have shown that dietary carotenoids and polyphenols activate the cell’s antioxidant defense system by increasing antioxidant response element/Nrf2 (ARE/Nrf2) transcriptional activity and reducing the inflammatory response. The aim of the current study was to examine the protective effect of such dietary-derived compounds and estradiol on dermal fibroblasts under oxidative stress induced by H2O2. Human dermal fibroblasts were used to study the effect of H2O2 on cell number and apoptosis, MMP-1, and pro-collagen secretion as markers of skin damage. Treatment of cells with H2O2 led to cell death, increased secretion of MMP-1, and decreased pro-collagen secretion. Pre-treatment with tomato and rosemary extracts, and with estradiol, reversed the effects of the oxidative stress. This was associated with a reduction in intracellular ROS levels, probably through the measured increased activity of ARE/Nrf2. Conclusions: This study indicates that carotenoids, polyphenols, and estradiol protect dermal fibroblasts from oxidative stress-induced damage through a reduction in ROS levels.
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Network pharmacology and molecular docking reveal the effective substances and active mechanisms of Dalbergia Odoriferain protecting against ischemic stroke. PLoS One 2021; 16:e0255736. [PMID: 34582494 PMCID: PMC8478192 DOI: 10.1371/journal.pone.0255736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 07/22/2021] [Indexed: 11/29/2022] Open
Abstract
Dalbergia Odorifera (DO) has been widely used for the treatment of cardiovascular and cerebrovascular diseasesinclinical. However, the effective substances and possible mechanisms of DO are still unclear. In this study, network pharmacology and molecular docking were used toelucidate the effective substances and active mechanisms of DO in treating ischemic stroke (IS). 544 DO-related targets from 29 bioactive components and 344 IS-related targets were collected, among them, 71 overlapping common targets were got. Enrichment analysis showed that 12 components were the possible bioactive components in DO, which regulating 9 important signaling pathways in 3 biological processes including ‘oxidative stress’ (KEGG:04151, KEGG:04068, KEGG:04915), ‘inflammatory response’(KEGG:04668, KEGG:04064) and ‘vascular endothelial function regulation’(KEGG:04066, KEGG:04370). Among these, 5 bioactive components with degree≥20 among the 12 potential bioactive components were selected to be docked with the top5 core targets using AutodockVina software. According to the results of molecular docking, the binding sites of core target protein AKT1 and MOL002974, MOL002975, and MOL002914 were 9, 8, and 6, respectively, and they contained 2, 1, and 0 threonine residues, respectively. And some binding sites were consistent, which may be the reason for the similarities and differences between the docking results of the 3 core bioactive components. The results of in vitro experiments showed that OGD/R could inhibit cell survival and AKT phosphorylation which were reversed by the 3 core bioactive components. Among them, MOL002974 (butein) had a slightly better effect. Therefore, the protective effect of MOL002974 (butein) against cerebral ischemia was further evaluated in a rat model of middle cerebral artery occlusion (MCAO) by detecting neurological score, cerebral infarction volume and lactate dehydrogenase (LDH) level. The results indicated that MOL002974 (butein) could significantly improve the neurological score of rats, decrease cerebral infarction volume, and inhibit the level of LDH in the cerebral tissue and serum in a dose-dependent manner. In conclusion, network pharmacology and molecular docking predicate the possible effective substances and mechanisms of DO in treating IS. And the results are verified by the in vitro and in vivo experiments. This research reveals the possible effective substances from DO and its active mechanisms for treating IS and provides a new direction for the secondary development of DO for treating IS.
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Panieri E, Saso L. Inhibition of the NRF2/KEAP1 Axis: A Promising Therapeutic Strategy to Alter Redox Balance of Cancer Cells. Antioxid Redox Signal 2021; 34:1428-1483. [PMID: 33403898 DOI: 10.1089/ars.2020.8146] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: The nuclear factor erythroid 2-related factor 2/Kelch-like ECH-associated protein 1 (NRF2/KEAP1) pathway is a crucial and highly conserved defensive system that is required to maintain or restore the intracellular homeostasis in response to oxidative, electrophilic, and other types of stress conditions. The tight control of NRF2 function is maintained by a complex network of biological interactions between positive and negative regulators that ultimately ensure context-specific activation, culminating in the NRF2-driven transcription of cytoprotective genes. Recent Advances: Recent studies indicate that deregulated NRF2 activation is a frequent event in malignant tumors, wherein it is associated with metabolic reprogramming, increased antioxidant capacity, chemoresistance, and poor clinical outcome. On the other hand, the growing interest in the modulation of the cancer cells' redox balance identified NRF2 as an ideal therapeutic target. Critical Issues: For this reason, many efforts have been made to identify potent and selective NRF2 inhibitors that might be used as single agents or adjuvants of anticancer drugs with redox disrupting properties. Despite the lack of specific NRF2 inhibitors still represents a major clinical hurdle, the researchers have exploited alternative strategies to disrupt NRF2 signaling at different levels of its biological activation. Future Directions: Given its dualistic role in tumor initiation and progression, the identification of the appropriate biological context of NRF2 activation and the specific clinicopathological features of patients cohorts wherein its inactivation is expected to have clinical benefits, will represent a major goal in the field of cancer research. In this review, we will briefly describe the structure and function of the NRF2/ KEAP1 system and some of the most promising NRF2 inhibitors, with a particular emphasis on natural compounds and drug repurposing. Antioxid. Redox Signal. 34, 1428-1483.
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Affiliation(s)
- Emiliano Panieri
- Department of Physiology and Pharmacology "Vittorio Erspamer," University of Rome La Sapienza, Rome, Italy
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer," University of Rome La Sapienza, Rome, Italy
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11
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Chen J, Huang Y, Hu X, Bian X, Nian S. Gastrodin prevents homocysteine-induced human umbilical vein endothelial cells injury via PI3K/Akt/eNOS and Nrf2/ARE pathway. J Cell Mol Med 2020; 25:345-357. [PMID: 33320446 PMCID: PMC7810955 DOI: 10.1111/jcmm.16073] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/31/2020] [Accepted: 10/25/2020] [Indexed: 12/22/2022] Open
Abstract
In this study, we investigated the protective effects of gastrodin (Gas) against homocysteine‐induced human umbilical vein endothelial cell (HUVEC) injury and the role of the phosphoinositide 3‐kinase (PI3K)/threonine kinase 1 (Akt)/endothelial nitric oxide synthase (eNOS) and NF‐E2‐related factor 2 (Nrf2)/antioxidant response element (ARE) pathways. We stimulated cells with homocysteine (1 mmol/L, 24 hours) and tested the effects of gastrodin (200‐800 μg/mL) on cell viability and the production of malondialdehyde (MDA), lactate dehydrogenase (LDH) and reactive oxygen species (ROS). Then, Nrf2 distribution in the cytoplasm and nucleus as well as the expression of enzymes downstream of Nrf2 was determined. Furthermore, we analysed the expression of bax, bcl‐2 and cleaved caspase3, and assessed the involvement of the PI3K/Akt/eNOS pathway by Western blots. Finally, we tested the vasoactive effect of gastrodin in thoracic aortic rings. The results showed that gastrodin decreased MDA, LDH and ROS production and increased cell viability, NO production and relaxation of thoracic aortic rings. Moreover, the protective effects of Gas on NO production and relaxation of thoracic aortic rings were blocked by L‐NAME but enhanced by Cav‐1 knockdown, and MK‐2206 treatment abolished the effect of Gas on the ROS. In addition, treatment with gastrodin increased Nrf2 nuclear translocation, thus enhancing the expression of downstream enzymes. Finally, gastrodin increased the expression of PI3K, p‐Akt, and eNOS and decreased Cav‐1 protein expression. In conclusion, our study suggested that gastrodin may protect HUVECs from homocysteine‐induced injury, and the PI3K/Akt/eNOS and Nrf2/ARE pathways may be responsible for the efficacy of gastrodin.
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Affiliation(s)
- Jiyu Chen
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Yanli Huang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Xiaochuan Hu
- Department of Occupational disease, Qingdao Central Hospital, Shandong, China
| | - Xiaohong Bian
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Sihui Nian
- Institute of Modern Chinese Medicine, School of Pharmacy, Wannan Medical College, Wuhu, China
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12
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Moyano P, García JM, García J, Anadon MJ, Naval MV, Frejo MT, Sola E, Pelayo A, Pino JD. Manganese increases Aβ and Tau protein levels through proteasome 20S and heat shock proteins 90 and 70 alteration, leading to SN56 cholinergic cell death following single and repeated treatment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:110975. [PMID: 32678756 DOI: 10.1016/j.ecoenv.2020.110975] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/10/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Manganese (Mn) produces cholinergic neuronal loss in basal forebrain (BF) region that was related to cognitive dysfunction induced after single and repeated Mn treatment. All processes that generate cholinergic neuronal loss in BF remain to be understood. Mn exposure may produce the reduction of BF cholinergic neurons by increasing amyloid beta (Aβ) and phosphorylated Tau (pTau) protein levels, altering heat shock proteins' (HSPs) expression, disrupting proteasome P20S activity and generating oxidative stress. These mechanisms, described to be altered by Mn in regions different than BF, could lead to the memory and learning process alteration produced after Mn exposure. The research performed shows that single and repeated Mn treatment of SN56 cholinergic neurons from BF induces P20S inhibition, increases Aβ and pTau protein levels, produces HSP90 and HSP70 proteins expression alteration, and oxidative stress generation, being the last two effects mediated by NRF2 pathway alteration. The increment of Aβ and pTau protein levels was mediated by HSPs and proteasome dysfunction. All these mechanisms mediated the cell decline observed after Mn treatment. Our results are relevant because they may assist to reveal the processes leading to the neurotoxicity and cognitive alterations observed after Mn exposure.
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Affiliation(s)
- Paula Moyano
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - José Manuel García
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Jimena García
- Department of Pharmacolgy, Health Sciences School, Alfonso X University, 28691, Madrid, Spain
| | - María José Anadon
- Department of Legal Medicine, Psychiatry and Pathology, Medicine School, Complutense University of Madrid, 28041, Madrid, Spain
| | - María Victoria Naval
- Department of Pharmacology, Pharmacognosy and Botany, Pharmacy School, Complutense University of Madrid, 28040, Madrid, Spain
| | - María Teresa Frejo
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Emma Sola
- Department of Legal Medicine, Psychiatry and Pathology, Medicine School, Complutense University of Madrid, 28041, Madrid, Spain
| | - Adela Pelayo
- Department of Legal Medicine, Psychiatry and Pathology, Medicine School, Complutense University of Madrid, 28041, Madrid, Spain
| | - Javier Del Pino
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain.
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Haghani A, Cacciottolo M, Doty KR, D'Agostino C, Thorwald M, Safi N, Levine ME, Sioutas C, Town TC, Forman HJ, Zhang H, Morgan TE, Finch CE. Mouse brain transcriptome responses to inhaled nanoparticulate matter differed by sex and APOE in Nrf2-Nfkb interactions. eLife 2020; 9:e54822. [PMID: 32579111 PMCID: PMC7314548 DOI: 10.7554/elife.54822] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 06/12/2020] [Indexed: 12/13/2022] Open
Abstract
The neurotoxicity of air pollution is undefined for sex and APOE alleles. These major risk factors of Alzheimer's disease (AD) were examined in mice given chronic exposure to nPM, a nano-sized subfraction of urban air pollution. In the cerebral cortex, female mice had two-fold more genes responding to nPM than males. Transcriptomic responses to nPM had sex-APOE interactions in AD-relevant pathways. Only APOE3 mice responded to nPM in genes related to Abeta deposition and clearance (Vav2, Vav3, S1009a). Other responding genes included axonal guidance, inflammation (AMPK, NFKB, APK/JNK signaling), and antioxidant signaling (NRF2, HIF1A). Genes downstream of NFKB and NRF2 responded in opposite directions to nPM. Nrf2 knockdown in microglia augmented NFKB responses to nPM, suggesting a critical role of NRF2 in air pollution neurotoxicity. These findings give a rationale for epidemiologic studies of air pollution to consider sex interactions with APOE alleles and other AD-risk genes.
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Affiliation(s)
- Amin Haghani
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Mafalda Cacciottolo
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Kevin R Doty
- Zilkha Neurogenetic Institute, Department of Physiology and Neuroscience, Keck School of Medicine of the University of Southern CaliforniaLos AngelesUnited States
| | - Carla D'Agostino
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Max Thorwald
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Nikoo Safi
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Morgan E Levine
- Department of Pathology, Yale School of MedicineNew HavenUnited States
| | - Constantinos Sioutas
- Department of Civil and Environmental Engineering, Viterbi School of Engineering, University of Southern CaliforniaLos AngelesUnited States
| | - Terrence C Town
- Zilkha Neurogenetic Institute, Department of Physiology and Neuroscience, Keck School of Medicine of the University of Southern CaliforniaLos AngelesUnited States
| | - Henry Jay Forman
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Hongqiao Zhang
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Todd E Morgan
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
| | - Caleb E Finch
- Leonard Davis School of Gerontology, University of Southern CaliforniaLos AngelesUnited States
- Dornsife College, University of Southern CaliforniaLos AngelesUnited States
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Son HJ, Kim N, Song CH, Lee SM, Lee HN, Surh YJ. 17β-Estradiol reduces inflammation and modulates antioxidant enzymes in colonic epithelial cells. Korean J Intern Med 2020; 35:310-319. [PMID: 30336658 PMCID: PMC7061017 DOI: 10.3904/kjim.2018.098] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 09/16/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND/AIMS Estrogen is known to have protective effect in colorectal cancer development. The aims of this study are to investigate whether estradiol treatment reduces inflammation in CCD841CoN, a female human colonic epithelial cell line and to uncover underlying mechanisms of estradiol effects. METHODS 17β-Estradiol (E2) effect was measured by Western blot after inducing inf lammation of CCD841CoN by tumor necrosis factor α (TNF-α). Expression levels of estrogen receptor α (ERα) and β (ERβ), cyclooxygenase-2 (COX-2), nuclear factor-κB (NF-κB), heme oxygenase-1 (HO-1), and NAD(P)H-quinone oxidoreductase-1 (NQO-1) were also evaluated. RESULTS E2 treatment induced expression of ERβ but did not increase that of ERα. E2 treatment for 48 hours significantly elevated the expression of anti-oxidant enzymes, HO-1 and NQO-1. TNF-α treatment significantly increased the level of activated NF-κB (p < 0.05), and this increase was significantly suppressed by treatment of 10 nM of E2 (p < 0.05). E2 treatment ameliorated TNF-α-induced COX-2 expression and decrease of HO-1 expression. 4-(2-phenyl-5,7-bis(trifluoromethyl) pyrazolo(1,5-a)pyrimidin-3-yl)phenol (PHTPP), antagonist of ERβ, removed the inhibitory effect of E2 in the TNF-α-induced COX-2 expression (p = 0.05). CONCLUSION Estrogen seems to inhibit inflammation in female human colonic epithelial cell lines, through down-regulation of NF-κB and COX-2 expression and induction of anti-oxidant enzymes such as HO-1 and NQO-1.
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Affiliation(s)
- Hee Jin Son
- Seoul National University College of Medicine, Seoul, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
- Correspondence to Nayoung Kim, M.D. Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173beon-gil, Bundang-gu, Seongnam 13620, Korea Tel: +82-31-787-7008 Fax: + 82-31-787-4051 E-mail:
| | - Chin-Hee Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sun Min Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ha-Na Lee
- Tumor Microenvironment Global Core Research Center, Seoul National University College of Pharmacy, Seoul, Korea
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center, Seoul National University College of Pharmacy, Seoul, Korea
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Solar Fernandez V, Cipolletti M, Ascenzi P, Marino M, Fiocchetti M. Neuroglobin As Key Mediator in the 17β-Estradiol-Induced Antioxidant Cell Response to Oxidative Stress. Antioxid Redox Signal 2020; 32:217-227. [PMID: 31686530 DOI: 10.1089/ars.2019.7870] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Aims: Nuclear factor (erythroid-derived 2)-like-2 factor (NRF-2) is a transcription factor well known to provide an advantage for cancer growth and survival regulating the cellular redox pathway. In breast cancer cells, we recently identified the monomeric heme-globin neuroglobin (NGB) as part of a new mechanism induced by the steroid hormone 17β-estradiol (E2) against oxidative stress. While there is mounting evidence suggesting a critical role of NGB as a sensor of oxidative stress, scarce information is available about its involvement in NRF-2 pathway activation in breast cancer cells. Results: Although NGB is not involved in the rapid E2-induced NRF-2 stability, E2 loses the capacity to regulate the expression of NRF-2-dependent genes in NGB-depleted MCF-7 cells. These data strongly sustain a role of NGB as a compensatory protein in the E2-activated intracellular pathway devoted to the increase of cancer cells tolerance to reactive oxygen species (ROS) generation in stressing conditions acting as key regulator of NRF-2 pathway activity in a time-dependent manner. Innovation: In this study, we identified a new role of NGB in the cell response to oxidative stress. Conclusion: Altogether, reported results open new insights on the NGB effect in regulating intracellular pathways related to cell adaptive response to stress and, as consequence, to cell survival, beyond its direct effect as ROS scavenger, opening new prospective in cancer therapeutic intervention.
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Affiliation(s)
| | | | - Paolo Ascenzi
- Interdepartmental Laboratory for Electron Microscopy, University Roma Tre, Roma, Italy
| | - Maria Marino
- Department of Science, University Roma Tre, Roma, Italy
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Systemic Oxidative Stress Is Increased in Postmenopausal Women and Independently Associates with Homocysteine Levels. Int J Mol Sci 2020; 21:ijms21010314. [PMID: 31906485 PMCID: PMC6982320 DOI: 10.3390/ijms21010314] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/25/2019] [Accepted: 12/31/2019] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress plays a pivotal role in the pathogenesis of cardiovascular diseases (CVD). Postmenopausal women have an increased risk of developing CVD due to decreased estrogen availability, which is accompanied by increased oxidative stress. Serum free thiols (R-SH) provide a robust and powerful read-out of systemic oxidative stress. In this study, we aimed to establish serum levels of free thiols and explore associations between free thiols and demographic, clinical, and biochemical parameters related to obesity and the risk for developing CVD in both pre- and postmenopausal women. Serum free thiols were measured in a cohort consisting of healthy pre- (n = 223) and postmenopausal (n = 118) Omani women. Postmenopausal women had significantly lower levels of serum free thiols as compared to premenopausal women (762.9 ± 85.3 vs. 780 ± 80.9 μM, age-adjusted p < 0.001). Women′s age was positively associated with serum free thiol levels in premenopausal women (β = 0.36, p = 0.002), whereas an inverse association was observed in postmenopausal women (β = −0.29, p = 0.002). Homocysteine levels were significantly inversely associated with serum free thiol levels in both pre- (β = −0.19, p = 0.005) and postmenopausal (β = −0.20, p = 0.032) women, independent from known cardiovascular risk factors. In this study, we show that postmenopausal women are affected by increased systemic oxidative stress, which independently associates with homocysteine levels.
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Moyano P, Sanjuan J, García JM, Anadon MJ, Lobo M, Pelayo A, García J, Frejo MT, Del Pino J. Primary hippocampal estrogenic dysfunction induces synaptic proteins alteration and neuronal cell death after single and repeated paraquat exposure. Food Chem Toxicol 2019; 136:110961. [PMID: 31715309 DOI: 10.1016/j.fct.2019.110961] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 11/05/2019] [Accepted: 11/08/2019] [Indexed: 01/12/2023]
Abstract
The extensively utilized herbicide Paraquat (PQ) was reported to generate cognitive disorders and hippocampal neuronal cell death after unique and extended exposure. Although, most of the mechanisms that mediate these actions remain unknown. We researched whether PQ induces synaptic protein disruption, Tau and amyloid beta protein formation, oxidative stress generation, and hippocampal neuronal cell loss through anti-estrogen action in primary hippocampal neurons, after day and two weeks PQ treatment, as a probable mechanism of such learning and memory impairment. Our results reveal that PQ did not alter estrogen receptors (ERα and ERβ) gene expression, yet it decreased ER activation, which led to synaptic proteins disruption and amyloid beta proteins generation and Tau proteins hyperphosphorylation. Estrogenic signaling disruption induced by PQ also downregulated the NRF2 pathway leading to oxidative stress generation. Finally, PQ exposure induced cell death mediated by ER dysfunction partially through oxidative stress and amyloid beta proteins generation and Tau proteins hyperphosphorylation. The results presented provide a therapeutic strategy to protect against PQ toxic effects, possibly giving an explanation for the learning and memory impairment generated following PQ exposure.
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Affiliation(s)
- Paula Moyano
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Javier Sanjuan
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - José Manuel García
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - María José Anadon
- Department of Legal Medicine, Psychiatry and Pathology, Medical School, Complutense University of Madrid, 28041, Madrid, Spain
| | - Margarita Lobo
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Adela Pelayo
- Department of Legal Medicine, Psychiatry and Pathology, Medical School, Complutense University of Madrid, 28041, Madrid, Spain
| | - Jimena García
- Department of Pharmacology, Health Sciences School, Alfonso X University, 28691, Madrid, Spain
| | - María Teresa Frejo
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Javier Del Pino
- Department of Pharmacology and Toxicology, Veterinary School, Complutense University of Madrid, 28040, Madrid, Spain.
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Zhang M, Wang D, Li B. Neuroprotection of two C21 steroidal glycosides from Cynanchum auriculatum against H2O2-induced damage on PC12 cells. Nat Prod Res 2019; 35:1752-1755. [PMID: 31264900 DOI: 10.1080/14786419.2019.1636241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Neuroprotection under conditions of oxygen stress of two C21 steroidal glycosides, cynsaccatol Q (1) and saccatol K (2), isolated from Cynanchum auriculatum Royle ex Wight, and their potential mechanisms were studied using the model of H2O2-induced damage on PC12 cells in this paper. Experiments showed that compounds 1 and 2 can both regulate the activities of antioxidant enzymes, including GSH-Px, LDH, CAT, SOD, decrease the levels of intracellular ROS and Ca2+, reduce cell apoptosis, and regulate the expression of HO-1 and NQO1 through the Nrf2-ARE pathway, thus play the role of neuroprotection against oxidative damage.
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Affiliation(s)
- Mi Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Dong Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
| | - Baocai Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, China
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19
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Tseng YT, Tsai YH, Fülöp F, Chang FR, Lo YC. 2-Iodo-4'-Methoxychalcone Attenuates Methylglyoxal-Induced Neurotoxicity by Activation of GLP-1 Receptor and Enhancement of Neurotrophic Signal, Antioxidant Defense and Glyoxalase Pathway. Molecules 2019; 24:E2249. [PMID: 31208152 PMCID: PMC6631972 DOI: 10.3390/molecules24122249] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/14/2019] [Accepted: 06/15/2019] [Indexed: 01/06/2023] Open
Abstract
Methylglyoxal (MG) acts as a reactive precursor of advanced glycation end products (AGEs). This compound is often connected with pathologies such as diabetes, neurodegenerative processes and diseases of aging. 2-iodo-4'-methoxychalcone (CHA79), a synthetic halogen-containing chalcone derivative, has been reported its anti-diabetic activity. This study aims to investigate the potential protective capability of CHA79 against MG-mediated neurotoxicity in SH-SY5Y cells. Results indicated CHA79 increased viability of cells and attenuated the rate of apoptosis in MG-exposed SH-SY5Y. CHA79 up-regulated expression of anti-apoptotic protein (Bcl-2) and down-regulated apoptotic proteins (Bax, cytochrome c, caspase-3, caspase-9). Moreover, CHA79 significantly up-regulated expression of neurotrophic factors, including glucagon-like peptide-1 receptor (GLP-1R), brain derived neurotrophic factor (BDNF), p75NTR, p-TrkB, p-Akt, p-GK-3β and p-CREB. CHA79 attenuated MG-induced ROS production and enhanced the antioxidant defense including nuclear factor erythroid 2-related factor 2 (Nrf2), HO-1, SOD and GSH. Furthermore, CHA79 attenuated MG-induced reduction of glyoxalase-1 (GLO-1), a vital enzyme on removing AGE precursors. In conclusion, CHA79 is the first novel synthetic chalcone possessing the GLP-1R and GLO-1 activating properties. CHA 79 also exhibits neuroprotective effects against MG toxicity by enhancing neurotrophic signal, antioxidant defense and anti-apoptosis pathway.
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Affiliation(s)
- Yu-Ting Tseng
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Yi-Hong Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary.
- MTA-SZTE Stereochemistry Research Group, Hungarian Academy of Sciences, Eötvös u. 6, H-6720 Szeged, Hungary.
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11221, Taiwan.
| | - Yi-Ching Lo
- Department of Pharmacology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
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20
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Kaufman MJ, Kanayama G, Hudson JI, Pope HG. Supraphysiologic-dose anabolic-androgenic steroid use: A risk factor for dementia? Neurosci Biobehav Rev 2019; 100:180-207. [PMID: 30817935 PMCID: PMC6451684 DOI: 10.1016/j.neubiorev.2019.02.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/13/2019] [Accepted: 02/17/2019] [Indexed: 02/06/2023]
Abstract
Supraphysiologic-dose anabolic-androgenic steroid (AAS) use is associated with physiologic, cognitive, and brain abnormalities similar to those found in people at risk for developing Alzheimer's Disease and its related dementias (AD/ADRD), which are associated with high brain β-amyloid (Aβ) and hyperphosphorylated tau (tau-P) protein levels. Supraphysiologic-dose AAS induces androgen abnormalities and excess oxidative stress, which have been linked to increased and decreased expression or activity of proteins that synthesize and eliminate, respectively, Aβ and tau-P. Aβ and tau-P accumulation may begin soon after initiating supraphysiologic-dose AAS use, which typically occurs in the early 20s, and their accumulation may be accelerated by other psychoactive substance use, which is common among non-medical AAS users. Accordingly, the widespread use of supraphysiologic-dose AAS may increase the numbers of people who develop dementia. Early diagnosis and correction of sex-steroid level abnormalities and excess oxidative stress could attenuate risk for developing AD/ADRD in supraphysiologic-dose AAS users, in people with other substance use disorders, and in people with low sex-steroid levels or excess oxidative stress associated with aging.
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Affiliation(s)
- Marc J Kaufman
- McLean Imaging Center, McLean Hospital, 115 Mill St., Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA.
| | - Gen Kanayama
- Biological Psychiatry Laboratory, McLean Hospital, 115 Mill St., Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | - James I Hudson
- Biological Psychiatry Laboratory, McLean Hospital, 115 Mill St., Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
| | - Harrison G Pope
- Biological Psychiatry Laboratory, McLean Hospital, 115 Mill St., Belmont, MA 02478, USA; Department of Psychiatry, Harvard Medical School, Boston, MA 02115, USA
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21
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Ruszkiewicz JA, Miranda-Vizuete A, Tinkov AA, Skalnaya MG, Skalny AV, Tsatsakis A, Aschner M. Sex-Specific Differences in Redox Homeostasis in Brain Norm and Disease. J Mol Neurosci 2019; 67:312-342. [DOI: 10.1007/s12031-018-1241-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/10/2018] [Indexed: 12/12/2022]
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22
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Yu Y, Wei SG, Weiss RM, Felder RB. Sex differences in the central and peripheral manifestations of ischemia-induced heart failure in rats. Am J Physiol Heart Circ Physiol 2019; 316:H70-H79. [PMID: 30289294 PMCID: PMC6383354 DOI: 10.1152/ajpheart.00499.2018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 11/22/2022]
Abstract
Sex differences in the presentation, outcome, and responses to treatment of systolic heart failure (HF) have been reported. In the present study, we examined the effect of sex on central neural mechanisms contributing to neurohumoral excitation and its peripheral manifestations in rats with HF. Male and female Sprague-Dawley rats underwent coronary artery ligation (CL) to induce HF. Age-matched rats served as controls. Ischemic zone and left ventricular function were similar 24 h and 4 wk after CL. Female rats with HF had a lower mortality rate and less hemodynamic compromise, pulmonary congestion, and right ventricular remodeling 4 wk after CL. Plasma angiotensin II (ANG II), arginine vasopressin (AVP), and norepinephrine levels were increased in HF rats in both sexes, but AVP and norepinephrine levels increased less in female rats. In the hypothalamic paraventricular nucleus, a key cardiovascular-related nucleus contributing to neurohumoral excitation in HF, mRNA levels for the proinflammatory cytokines tumor necrosis factor-α and interleukin-1β as well as cyclooxygenase-2 and the ANG II type 1a receptor were increased in HF rats of both sexes, but less so in female rats. Angiotensin-converting enzyme 2 protein levels increased in female HF rats but decreased in male HF rats. mRNA levels of AVP were lower in female rats in both control and HF groups compared with the respective male groups. Activation of extracellular signal-regulated protein kinases 1 and 2 increased similarly in both sexes in HF. The results suggest that female HF rats have less central neural excitation and less associated hemodynamic compromise than male HF rats with the same degree of initial ischemic cardiac injury. NEW & NOTEWORTHY Sex differences in the presentation and responses to treatment of heart failure (HF) are widely recognized, but the underlying mechanisms are poorly understood. The present study describes sex differences in the central nervous system mechanisms that drive neurohumoral excitation in ischemia-induced HF. Female rats had a less intense central neurochemical response to HF and experienced less hemodynamic compromise. Sex hormones may contribute to these differences in the central and peripheral adaptations to HF.
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Affiliation(s)
- Yang Yu
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Shun-Guang Wei
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Robert M Weiss
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
| | - Robert B Felder
- Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa , Iowa City, Iowa
- Research Service, Veterans Affairs Medical Center , Iowa City, Iowa
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23
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Li W, Li Z, Zhou D, Zhang X, Yan J, Huang G. Maternal folic acid deficiency stimulates neural cell apoptosis via miR-34a associated with Bcl-2 in the rat foetal brain. Int J Dev Neurosci 2018; 72:6-12. [PMID: 30447272 DOI: 10.1016/j.ijdevneu.2018.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/21/2018] [Accepted: 11/12/2018] [Indexed: 01/10/2023] Open
Abstract
Embryonic development is a critical period wherein brain neurons are generated and organized. Maternal dietary folate, a cofactor in one-carbon metabolism, modulates neurogenesis and apoptosis in foetal brain neurons. We hypothesized that aberrant neuronal apoptosis may affect the development of the central nervous system during maternal folic acid deficiency, with evident effects because maternal folic acid deficiency modulates the microRNA-34a associated with Bcl-2 pathway during embryonic development. Four-week-old female Sprague-Dawley rats were divided randomly into two groups (10 rats per group): a folate-deficient diet group and a folate-normal diet group. The diets were administered to the rats 60 d before mating, which was continued for the pregnant dams until parturition. Maternal folic acid deficiency increased neuronal apoptosis in the hippocampus and the cortex in the offspring. Furthermore, maternal folic acid deficiency increased the ratio of cleaved caspase-3/caspase-3, followed by an increase in caspase-3 activity. Moreover, maternal folic acid deficiency downregulated Bcl-2 and upregulated Bax, and this effect associate with maternal folic acid deficient increases expression of microRNA-34a. Together, the present results indicate that maternal folic acid deficiency stimulates neuronal apoptosis via microRNA-34a associated with Bcl-2 signalling in rat offspring.
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Affiliation(s)
- Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Xumei Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Jing Yan
- Department of Social Medicine and Health Administration, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.
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24
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Song S, Wu S, Wang Y, Wang Z, Ye C, Song R, Song D, Ruan Y. 17β-estradiol inhibits human umbilical vascular endothelial cell senescence by regulating autophagy via p53. Exp Gerontol 2018; 114:57-66. [PMID: 30399406 DOI: 10.1016/j.exger.2018.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/30/2018] [Accepted: 10/30/2018] [Indexed: 12/13/2022]
Abstract
Vascular endothelial cell (VEC) senescence is an initiating factor in numerous cardiovascular diseases. Recent studies showed that 17β-estradiol (17β-E2), an estrogen with numerous biological activities such as inhibition of atherosclerosis, protects VECs from senescence. However, the effects of 17β-E2 on human umbilical VECs (HUVECs) remain unknown. This study investigated the anti-senescent effect of 17β-E2 on HUVECs and explored the underlying mechanism with respect to autophagy and p53 activity. First, rapamycin and 3-methyladenine were used to clarify the relationship between autophagy and senescence in HUVECs, and an inverse relationship was demonstrated. Next, the effect of 17β-E2 on H2O2-induced senescence of HUVECs was examined. Increased autophagy induced by 17β-E2 inhibited H2O2-induced senescence of HUVECs, increased cell viability, and maintained HUVEC morphology. 17β-E2 pre-treatment also decreased cell cycle arrest, decreased the dephosphorylation of Rb, decreased the production of ET-1, and increased the production of NO. Most importantly, 17β-E2 pre-treatment increased autophagy by activating p53 and its downstream effector p53-upregulated modulator of apoptosis (PUMA). Overall, our data indicate the critical role of autophagy in the anti-senescent effect of 17β-E2 on HUVECs.
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Affiliation(s)
- Shicong Song
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Saizhu Wu
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuyan Wang
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiwei Wang
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Changxiong Ye
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Rui Song
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dongqing Song
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yunjun Ruan
- Department of Gerontology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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25
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Narumi M, Takahashi K, Yamatani H, Seino M, Yamanouchi K, Ohta T, Takahashi T, Kurachi H, Nagase S. Oxidative Stress in the Visceral Fat Is Elevated in Postmenopausal Women with Gynecologic Cancer. J Womens Health (Larchmt) 2018; 27:99-106. [DOI: 10.1089/jwh.2016.6301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Megumi Narumi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Kazuhiro Takahashi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Hizuru Yamatani
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Manabu Seino
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Keiko Yamanouchi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Tsuyoshi Ohta
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Toshifumi Takahashi
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - Hirohisa Kurachi
- Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Osaka, Japan
| | - Satoru Nagase
- Department of Obstetrics and Gynecology, Yamagata University Faculty of Medicine, Yamagata, Japan
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26
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Cui S, Li W, Wang P, Lv X, Gao Y, Huang G. Folic acid inhibits homocysteine-induced cell apoptosis in human umbilical vein endothelial cells. Mol Cell Biochem 2017; 444:77-86. [DOI: 10.1007/s11010-017-3232-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/24/2017] [Indexed: 02/02/2023]
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27
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Pellegrini GG, Cregor M, McAndrews K, Morales CC, McCabe LD, McCabe GP, Peacock M, Burr D, Weaver C, Bellido T. Nrf2 regulates mass accrual and the antioxidant endogenous response in bone differently depending on the sex and age. PLoS One 2017; 12:e0171161. [PMID: 28152064 PMCID: PMC5289572 DOI: 10.1371/journal.pone.0171161] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/17/2017] [Indexed: 01/28/2023] Open
Abstract
Accumulation of reactive oxygen species (ROS) is an important pathogenic mechanism underling the loss of bone mass and strength with aging and other conditions leading to osteoporosis. The transcription factor erythroid 2-related factor2 (Nrf2) plays a central role in activating the cellular response to ROS. Here, we examined the endogenous response of bone regulated by Nrf2, and its relationship with bone mass and architecture in the male and female murine skeleton. Young (3 month-old) and old (15 month-old) Nrf2 knockout (KO) mice of either sex exhibited the expected reduction in Nrf2 mRNA expression compared to wild type (WT) littermates. Nrf2 deletion did not lead to compensatory increase in Nrf1 or Nrf3, other members of this transcription factor family; and instead, Nrf1 expression was lower in KO mice. Compared to the respective WT littermate controls, female KO mice, young and old, exhibited lower expression of both detoxifying and antioxidant enzymes; young male KO mice, displayed lower expression of detoxifying enzymes but not antioxidant enzymes; and old male KO mice showed no differences in either detoxifying or antioxidant enzymes. Moreover, old male WT mice exhibited lower Nrf2 levels, and consequently lower expression of both detoxifying and antioxidant enzymes, compared to old female WT mice. These endogenous antioxidant responses lead to delayed rate of bone acquisition in female KO mice and higher bone acquisition in male KO mice as quantified by DXA and μCT, demonstrating that Nrf2 is required for full bone accrual in the female skeleton but unnecessary and even detrimental in the male skeleton. Therefore, Nrf2 regulates the antioxidant endogenous response and bone accrual differently depending on sex and age. These findings suggest that therapeutic interventions that target Nrf2 could be developed to enhance the endogenous antioxidant response in a sex- and age-selective manner.
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Affiliation(s)
- Gretel Gisela Pellegrini
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Meloney Cregor
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Kevin McAndrews
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Cynthya Carolina Morales
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Linda Doyle McCabe
- Department of Statistics, Purdue University, West Lafayette, Indiana, United States of America
| | - George P. McCabe
- Department of Statistics, Purdue University, West Lafayette, Indiana, United States of America
| | - Munro Peacock
- Department of Medicine, Division of Endocrinology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - David Burr
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Connie Weaver
- Department of Nutrition Science, Purdue University, West Lafayette, Indiana, United States of America
| | - Teresita Bellido
- Department of Anatomy and Cell Biology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
- Department of Medicine, Division of Endocrinology, School of Medicine, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, United States of America
- Roudebush Veterans Administration Medical Center, Indianapolis, Indiana, United States of America
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28
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Knockout of ho-1 protects the striatum from ferrous iron-induced injury in a male-specific manner in mice. Sci Rep 2016; 6:26358. [PMID: 27198537 PMCID: PMC4873828 DOI: 10.1038/srep26358] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/29/2016] [Indexed: 02/06/2023] Open
Abstract
Men have worse survival than premenopausal women after intracerebral hemorrhage (ICH). After ICH, overproduction of iron associated with induction of heme oxygenase-1 (HO-1) in brain was observed. Rodent ICH model using ferrous citrate (FC)-infusion into the striatum to simulate iron overload, showed a higher degree of injury severity in males than in females. However, the participation of HO-1 in sex-differences of iron-induced brain injury remains unknown. The present results showed a higher level of HO-1 expression associated with more severe injury in males compared with females after FC-infusion. Estradiol (E2) contributed to lower levels of FC-induced HO-1 expression in females compared with males. Heterozygote ho-1 KO decreased the levels of FC-induced injury severity, histological lesions, behavioral deficits, autophagy and autophagic cell death in the striatum of males but not in females. Moreover, ho-1 deficiency enhanced the neuroprotection by E2 only in males. These results suggested that over induction of HO-1 plays a harmful role in FC-induced brain injury in a male-specific manner. Suppression of HO-1 combined with E2 exhibits a synergistic effect on neuroprotection against FC-induced striatal injury in males. These findings open up the prospect for male-specific neuroprotection targeting HO-1 suppression for patients suffering from striatal iron overload.
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29
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Gender Differences in the Neurobiology of Anxiety: Focus on Adult Hippocampal Neurogenesis. Neural Plast 2016; 2016:5026713. [PMID: 26885403 PMCID: PMC4738969 DOI: 10.1155/2016/5026713] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/30/2015] [Accepted: 12/06/2015] [Indexed: 12/14/2022] Open
Abstract
Although the literature reports a higher incidence of anxiety disorders in women, the majority of basic research has focused on male rodents, thus resulting in a lack of knowledge on the neurobiology of anxiety in females. Bridging this gap is crucial for the design of effective translational interventions in women. One of the key brain mechanisms likely to regulate anxious behavior is adult hippocampal neurogenesis (AHN). This review paper aims to discuss the evidence on the differences between male and female rodents with regard to anxiety-related behavior and physiology, with a special focus on AHN. The differences between male and female physiologies are greatly influenced by hormonal differences. Gonadal hormones and their fluctuations during the estrous cycle have often been identified as agents responsible for sexual dimorphism in behavior and AHN. During sexual maturity, hormone levels fluctuate cyclically in females more than in males, increasing the stress response and the susceptibility to anxiety. It is therefore of great importance that future research investigates anxiety and other neurophysiological aspects in the female model, so that results can be more accurately applicable to the female population.
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30
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Tian H, Gao Z, Wang G, Li H, Zheng J. Estrogen potentiates reactive oxygen species (ROS) tolerance to initiate carcinogenesis and promote cancer malignant transformation. Tumour Biol 2015; 37:141-50. [DOI: 10.1007/s13277-015-4370-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 11/03/2015] [Indexed: 12/25/2022] Open
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31
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Zhu C, Wang S, Wang B, Du F, Hu C, Li H, Feng Y, Zhu R, Mo M, Cao Y, Li A, Yu X. 17β-Estradiol up-regulates Nrf2 via PI3K/AKT and estrogen receptor signaling pathways to suppress light-induced degeneration in rat retina. Neuroscience 2015. [PMID: 26211446 DOI: 10.1016/j.neuroscience.2015.07.057] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Human age-related retinal diseases, such as age-related macular degeneration (AMD), are intimately associated with decreased tissue oxygenation and hypoxia. Different antioxidants have been investigated to reverse AMD. In the present study, we describe the antioxidant 17β-estradiol (βE2) and investigate its protective effects on retinal neurons. Fourteen days after ovariectomy, adult Sprague-Dawley rats were exposed to 8000-lux light for 12h to induce retinal degeneration. Reactive oxygen species (ROS) levels were assessed by confocal fluorescence microscopy using 2,7-dichlorofluorescein diacetate. Nuclear factor erythroid 2-related factor 2 (Nrf2) and antioxidant enzyme mRNA expression were detected by real-time PCR. Western blotting was used to evaluate NRF2 activation. NRF2 translocation was determined by immunohistochemistry, with morphological changes monitored by hematoxylin and eosin staining. Following light exposure, βE2 significantly reduced ROS production. βE2 also up-regulated NRF2 mRNA and protein levels, with maximal expression at 4 and 12h post-exposure, respectively. Interestingly, following βE2 administration, NRF2 was translocated from the cytoplasm to the nucleus, primarily in the outer nuclear layer. βE2 also up-regulated NRF2, which triggered phase-2 antioxidant enzyme expression (superoxide dismutases 1 and 2, catalase, glutaredoxins 1 and 2, and thioredoxins 1 and 2), reduced ROS production, and ameliorated retinal damage. However, the beneficial effects of βE2 were markedly suppressed by pretreatment with LY294002 or ICI182780, specific inhibitors of the phosphatidylinositol 3-kinase-Akt (PI3K/AKT), and estrogen receptor (ER) signaling pathways, respectively. Taken together, these observations suggest that βE2 exerts antioxidative effects following light-induced retinal degeneration potentially via NRF2 activation. This protective mechanism may depend on two pathways: a rapid, non-genomic-type PI3K/AKT response, and a genomic-type ER-dependent response. Our data provide evidence that βE2 is a potentially effective in the treatment of retinal degeneration diseases.
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Affiliation(s)
- C Zhu
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China; Department of Periodontology for Stomatology, Stomatological Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - S Wang
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - B Wang
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - F Du
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - C Hu
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - H Li
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Y Feng
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - R Zhu
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - M Mo
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Y Cao
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - A Li
- Department of Periodontology for Stomatology, Stomatological Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China; Research Center for Stomatology, Stomatological Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China.
| | - X Yu
- Department of Genetics and Molecular Biology, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China; Environment and Genes Related to Diseases Key Laboratory of Education Ministry, School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China.
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Sobočanec S, Šarić A, Mačak Šafranko Ž, Popović Hadžija M, Abramić M, Balog T. The role of 17β-estradiol in the regulation of antioxidant enzymes via the Nrf2–Keap1 pathway in the livers of CBA/H mice. Life Sci 2015; 130:57-65. [DOI: 10.1016/j.lfs.2015.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 03/12/2015] [Accepted: 03/13/2015] [Indexed: 11/29/2022]
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Mirzamohammadi S, Mehrabani M, Tekiyehmaroof N, Sharifi AM. Protective effect of 17β-estradiol on serum deprivation-induced apoptosis and oxidative stress in bone marrow-derived mesenchymal stem cells. Hum Exp Toxicol 2015; 35:312-22. [PMID: 25964380 DOI: 10.1177/0960327115586208] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stem cell transplantation has indicated great promise for cell therapy in a wide range of diseases, but poor and insufficient viability of cells within damaged tissues has limited its potential therapeutic effects. 17 β-Estradiol (E2) is a steroid hormone that plays an important role in expression of many genes and regulating proliferation, viability, and intracellular redox status in different cell types. In this study, we aimed to assess the effect of E2 on bone marrow-derived mesenchymal stem cells (BM-MSCs). Apoptosis was induced by serum deprivation (SD), and cells were exposed to E2 in the presence or absence of serum for varying periods of time, after which cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Expression of proapoptotic and antiapoptotic proteins after exposure to E2 was examined by Western blotting. The ability of E2 to prevent reactive oxygen species (ROS) production was also measured. The results indicated that E2 significantly enhanced the viability of the cells and protected BM-MSCs against SD-induced overproduction of ROS. It could reduce lipid peroxidation, total antioxidant power, and also Bax/Bcl-2 ratio as well as expression of caspase-3. Taken together, our data support that E2 treatment protects BM-MSCs against SD-induced damage by regulating ROS production and upregulation of antiapoptotic/proapoptotic proteins ratio.
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Affiliation(s)
- S Mirzamohammadi
- Razi Drug Research Center, Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - M Mehrabani
- Razi Drug Research Center, Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - N Tekiyehmaroof
- Razi Drug Research Center, Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - A M Sharifi
- Razi Drug Research Center, Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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Luo X, Xiao L, Yang H, Zhang R, Jiang M, Ni J, Lei T, Wang N. Homocysteine downregulates gene expression of heme oxygenase-1 in hepatocytes. Nutr Metab (Lond) 2014; 11:55. [PMID: 25520741 PMCID: PMC4268895 DOI: 10.1186/1743-7075-11-55] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 11/27/2014] [Indexed: 12/20/2022] Open
Abstract
Background Hyperhomocysteinemia (HHcy) is an independent risk factor for liver diseases, such as fatty liver and hepatic fibrosis. However, the mechanisms underlying this pro-oxidative effect of homocysteine (Hcy) in hepatocytes remain largely unknown. Thus, we investigated the effect of Hcy on the gene expression of heme oxygenase-1 (HO-1), the primary rate-limiting enzyme in heme catabolism and a key anti-oxidant detoxification enzyme in maintaining cellular redox homeostasis. Methods In vivo, twenty male C57BL/6 mice at 8 weeks of age were randomly divided into two groups. One group was fed a chow diet (chow group; n = 10), the other group of mice was fed a methionine-supplemented diet (Met group, 1 mg kg−1 day−1 L-methionine in drinking water; n = 10) for 4 weeks. In vitro, HepG2 cells were stimulated with different doses of homocysteine (Hcy). Results Four weeks’ methionine supplementation caused a significant increase of plasma Hcy concentration and a decrease of HO-1 expression in the liver of C57BL/6 mice than mice received chow diet. Besides, SOD enzyme activities were impaired and the level of oxidative stress markers, such as malondialdehyde (MDA) were elevated in the liver from mice supplemented with methionine compared with control mice. In cultured hepatocytes, Hcy treatment reduced both the mRNA and protein levels of HO-1 dose-dependently. However, Hcy had no effect on the gene expression of Nrf2, the major transcriptional regulator of HO-1. Instead, Hcy induced the expression of Bach1, a transcriptional repressor of HO-1. In addition, Hcy stimulated the nuclear localization of Bach1 but prevented that of Nrf2. Furthermore, we found that knockdown of Bach1 attenuated the suppression of the HO-1 expression by Hcy. Conclusions Collectively, our results demonstrated that Bach1 plays an important role in Hcy-triggered ROS generations through inhibiting HO-1 expression, likely, resulting from the disturbed interplay between Bach1 and Nrf2. Electronic supplementary material The online version of this article (doi:10.1186/1743-7075-11-55) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoqin Luo
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Department of Public Health, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Nutrition and Food Safety Engineering Research Center of Shaanxi Province, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Lei Xiao
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Haixia Yang
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Department of Public Health, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Nutrition and Food Safety Engineering Research Center of Shaanxi Province, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Ruijuan Zhang
- Department of Public Health, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Nutrition and Food Safety Engineering Research Center of Shaanxi Province, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Manli Jiang
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Jiahua Ni
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Ting Lei
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China
| | - Nanping Wang
- Cardiovascular Research Center, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061 China ; Institute of Cardiovascular Science, Peking University, Beijing, 100191 China
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Estrogen increases Nrf2 activity through activation of the PI3K pathway in MCF-7 breast cancer cells. Exp Cell Res 2014; 328:351-60. [DOI: 10.1016/j.yexcr.2014.08.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 07/18/2014] [Accepted: 08/19/2014] [Indexed: 12/17/2022]
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Cook KL, Clarke R. Estrogen receptor-α signaling and localization regulates autophagy and unfolded protein response activation in ER+ breast cancer. ACTA ACUST UNITED AC 2014; 1. [PMID: 26005699 DOI: 10.14800/rci.316] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Antiestrogen therapy is commonly used to treat estrogen receptor (ER)+ breast cancers but acquired and de novo resistance limits their overall curative potential. An endoplasmic reticulum stress pathway, the unfolded protein response, and autophagy are both implicated in the development of antiestrogen therapy resistance in estrogen receptor-α (ER) positive breast cancer. Thus, we recently investigated how ERα can regulate autophagy and the unfolded protein response (Cook et al., FASEBJ, 2014). We showed that inhibiting ERα signaling stimulates autophagosome formation and flux. Moreover, we showed that ERα knockdown inhibited the unfolded protein response (UPR) signaling components. Here we support and extend this recent report showing additional data on ERα localization and provide a schematic of the overall signaling implicated by our results. Differential activation of UPR and autophagy highlight the pivotal role of ERα in regulating pro-survival signaling in breast cancer through UPR and autophagy. Furthermore, these data suggest new approaches to successful targeting ERα and preventing the regulation of key pro-survival signaling that confers resistance to endocrine therapies.
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Affiliation(s)
- Katherine L Cook
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Robert Clarke
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
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Nasuti C, Carloni M, Fedeli D, Di Stefano A, Marinelli L, Cerasa LS, Meda C, Maggi A, Gabbianelli R. Effect of 17β-estradiol on striatal dopaminergic transmission induced by permethrin in early childhood rats. CHEMOSPHERE 2014; 112:496-502. [PMID: 25048945 DOI: 10.1016/j.chemosphere.2014.05.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 05/07/2014] [Accepted: 05/13/2014] [Indexed: 06/03/2023]
Abstract
A positive effect of estrogen treatment has been observed in neurodegenerative diseases such as Parkinson's disease. Since 17β-estradiol can modulate positively dopaminergic system, here we sought to evaluate the effect of 17β-estradiol supplementation on an animal model developing dopaminergic alterations on nucleus of striatum after neonatal exposure to permethrin pesticide. The goal of the study was to verify if the co-treatment with 17β-estradiol could protect against the damage induced by pesticide exposure in early life. Permethrin treated rats showed a decrease of dopamine and Nurr1 gene expression in striatum, while a more pronounced decrease of dopamine was observed in rats co-administered with permethrin+17β-estradiol. No difference between control and permethrin treated rats was observed in both mRNA of ERα and ERβ, whereas the rats co-administered with permethrin+17β-estradiol showed a down-regulation of ERα expression. The in vitro studies showed that permethrin, at high concentration may have an antagonist effect on ERα and even more pronounced in ERβ, thus suggesting that permethrin may block the estrogen neuroprotective effects. In conclusion, in male rats, the administration of estrogen further enhanced the impairment of dopaminergic transmission due to exposure to permethrin.
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Affiliation(s)
- Cinzia Nasuti
- School of Pharmacy, Pharmacology Unit, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy
| | - Manuel Carloni
- School of Pharmacy, Molecular Biology Unit, University of Camerino, Via Gentile III da Varano, 62032 Camerino, MC, Italy
| | - Donatella Fedeli
- School of Pharmacy, Molecular Biology Unit, University of Camerino, Via Gentile III da Varano, 62032 Camerino, MC, Italy
| | - Antonio Di Stefano
- Dipartimento di Scienze del Farmaco, Università G. d'Annunzio, Via dei Vestini 31, 66100 Chieti, Italy
| | - Lisa Marinelli
- Dipartimento di Scienze del Farmaco, Università G. d'Annunzio, Via dei Vestini 31, 66100 Chieti, Italy
| | - Laura Serafina Cerasa
- Dipartimento di Scienze del Farmaco, Università G. d'Annunzio, Via dei Vestini 31, 66100 Chieti, Italy
| | - Clara Meda
- Center of Excellence on Neurodegenerative Diseases University of Milan, Via Balzaretti, 9 20133 Milan, Italy
| | - Adriana Maggi
- Center of Excellence on Neurodegenerative Diseases University of Milan, Via Balzaretti, 9 20133 Milan, Italy
| | - Rosita Gabbianelli
- School of Pharmacy, Molecular Biology Unit, University of Camerino, Via Gentile III da Varano, 62032 Camerino, MC, Italy.
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Cook KL, Clarke PAG, Parmar J, Hu R, Schwartz-Roberts JL, Abu-Asab M, Wärri A, Baumann WT, Clarke R. Knockdown of estrogen receptor-α induces autophagy and inhibits antiestrogen-mediated unfolded protein response activation, promoting ROS-induced breast cancer cell death. FASEB J 2014; 28:3891-905. [PMID: 24858277 DOI: 10.1096/fj.13-247353] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 05/12/2014] [Indexed: 01/08/2023]
Abstract
Approximately 70% of all newly diagnosed breast cancers express estrogen receptor (ER)-α. Although inhibiting ER action using targeted therapies such as fulvestrant (ICI) is often effective, later emergence of antiestrogen resistance limits clinical use. We used antiestrogen-sensitive and -resistant cells to determine the effect of antiestrogens/ERα on regulating autophagy and unfolded protein response (UPR) signaling. Knockdown of ERα significantly increased the sensitivity of LCC1 cells (sensitive) and also resensitized LCC9 cells (resistant) to antiestrogen drugs. Interestingly, ERα knockdown, but not ICI, reduced nuclear factor (erythroid-derived 2)-like (NRF)-2 (UPR-induced antioxidant protein) and increased cytosolic kelch-like ECH-associated protein (KEAP)-1 (NRF2 inhibitor), consistent with the observed increase in ROS production. Furthermore, autophagy induction by antiestrogens was prosurvival but did not prevent ERα knockdown-mediated death. We built a novel mathematical model to elucidate the interactions among UPR, autophagy, ER signaling, and ROS regulation of breast cancer cell survival. The experimentally validated mathematical model explains the counterintuitive result that knocking down the main target of ICI (ERα) increased the effectiveness of ICI. Specifically, the model indicated that ERα is no longer present in excess and that the effect on proliferation from further reductions in its level by ICI cannot be compensated for by increased autophagy. The stimulation of signaling that can confer resistance suggests that combining autophagy or UPR inhibitors with antiestrogens would reduce the development of resistance in some breast cancers.
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Affiliation(s)
- Katherine L Cook
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Pamela A G Clarke
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA
| | | | - Rong Hu
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Jessica L Schwartz-Roberts
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Mones Abu-Asab
- Section of Immunopathology and Laboratory of Immunology, National Eye Institute, U.S. National Institutes of Health, Bethesda, Maryland, USA
| | - Anni Wärri
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - William T Baumann
- Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA; and
| | - Robert Clarke
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia, USA;
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Wang L, Di LJ. BRCA1 and estrogen/estrogen receptor in breast cancer: where they interact? Int J Biol Sci 2014; 10:566-75. [PMID: 24910535 PMCID: PMC4046883 DOI: 10.7150/ijbs.8579] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 03/24/2014] [Indexed: 01/08/2023] Open
Abstract
BRCA1 mainly acts as a tumor suppressor and BRCA1 mutation correlates with increased cancer risk. Although it is well recognized that BRCA1 related tumorigenesis is mainly caused by the increased DNA damage and decreased genome stability, it is not clear that why BRCA1 related patients have higher risk for cancer development mainly in estrogen responsive tissues such as breast and ovary. Recent studies suggested that BRCA1 and E-ER (estrogen and estrogen receptor) signaling synergistically regulate the mammary epithelial cell proliferation and differentiation. In this current presentation, we reviewed the correlation between mammary gland epithelial cell transformation and the status of BRCA1 and ER. Then the mechanisms of BRCA1 and E-ER interaction at both gene transcription level and protein-protein interaction level are discussed. Furthermore, the tumorigenic mechanisms are discussed by focusing on the synergistic effect of BRCA1 and E-ER on cell metabolism, ROS management, and antioxidant activity in mammary gland epithelial cells. Also, the possibility of cell de-differentiation promoted by coordinated effect between BRCA1 mutation and E-ER signal is explored. Together, the currently available evidences suggest that BRCA1 mutation and E-ER signal together, contribute to breast tumorigenesis by providing the metabolic support for cancer cell growth and even may directly be involved in promoting the de-differentiation of cancer-prone epithelial cells.
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Affiliation(s)
- Li Wang
- Faculty of health sciences, University of Macau, SAR of People's Republic of China
| | - Li-Jun Di
- Faculty of health sciences, University of Macau, SAR of People's Republic of China
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Meng X, Wang M, Wang X, Sun G, Ye J, Xu H, Sun X. Suppression of NADPH oxidase- and mitochondrion-derived superoxide by Notoginsenoside R1 protects against cerebral ischemia–reperfusion injury through estrogen receptor-dependent activation of Akt/Nrf2 pathways. Free Radic Res 2014; 48:823-38. [DOI: 10.3109/10715762.2014.911853] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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McFarland K, Price D, Davis CN, Ma JN, Bonhaus DW, Burstein E, Olsson R. AC-186, a selective nonsteroidal estrogen receptor β agonist, shows gender specific neuroprotection in a Parkinson's disease rat model. ACS Chem Neurosci 2013; 4:1249-55. [PMID: 23898966 PMCID: PMC3778431 DOI: 10.1021/cn400132u] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 07/30/2013] [Indexed: 01/15/2023] Open
Abstract
Drugs that selectively activate estrogen receptor β (ERβ) are potentially safer than the nonselective estrogens currently used in hormonal replacement treatments that activate both ERβ and ERα. The selective ERβ agonist AC-186 was evaluated in a rat model of Parkinson's disease induced through bilateral 6-hydroxydopamine lesions of the substantia nigra. In this model, AC-186 prevented motor, cognitive, and sensorimotor gating deficits and mitigated the loss of dopamine neurons in the substantia nigra, in males, but not in females. Furthermore, in male rats, 17β-estradiol, which activates ERβ and ERα with equal potency, did not show the same neuroprotective benefits as AC-186. Hence, in addition to a beneficial safety profile for use in both males and females, a selective ERβ agonist has a differentiated pharmacological profile compared to 17β-estradiol in males.
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Affiliation(s)
- Krista McFarland
- ACADIA Pharmaceuticals Inc., San Diego, California
92121, United States
| | - Diana
L. Price
- Neuropore Therapies, Inc., San Diego, California 92121,
United States
| | | | - Jian-Nong Ma
- ACADIA Pharmaceuticals Inc., San Diego, California
92121, United States
| | | | - Ethan
S. Burstein
- ACADIA Pharmaceuticals Inc., San Diego, California
92121, United States
| | - Roger Olsson
- ACADIA Pharmaceuticals Inc., San Diego, California
92121, United States
- Chemical Biology
& Therapeutics, Department of Experimental Medical Science, Lund University, Sweden
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