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Hao X, Long X, Fan L, Gou J, Liu Y, Fu Y, Zhao H, Xie X, Wang D, Liang G, Ye Y, Wang J, Li S, Zeng C. Prenatal LPS leads to increases in RAS expression within the PVN and overactivation of sympathetic outflow in offspring rats. Hypertens Res 2024; 47:2363-2376. [PMID: 38969805 DOI: 10.1038/s41440-024-01754-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 05/20/2024] [Accepted: 05/28/2024] [Indexed: 07/07/2024]
Abstract
The renin-angiotensin system (RAS) and the sympathetic nervous system (SNS) are two major blood pressure-regulating systems. The link between the renal and cerebral RAS axes was provided by reflex activation of renal afferents and efferent sympathetic nerves. There is a self-sustaining enhancement of the brain and the intrarenal RAS. In this study, prenatal exposure to lipopolysaccharide (LPS) led to increased RAS activity in the paraventricular nucleus (PVN) and overactivation of sympathetic outflow, accompanied by increased production of reactive oxygen species (ROS) and disturbances between inhibitory and excitatory neurons in PVN. The AT1 receptor blocker losartan and α2 adrenergic receptor agonist clonidine in the PVN significantly decreased renal sympathetic nerve activity (RSNA) and synchronously reduced systolic blood pressure. Prenatal LPS stimulation caused H3 acetylation at H3K9 and H3K14 in the PVN, which suggested that epigenetic changes are involved in transmitting the prenatal adverse stimulative information to the next generation. Additionally, melatonin treatment during pregnancy reduced RAS activity and ROS levels in the PVN; balanced the activity of inhibitory and excitatory neurons in the PVN; increased urine sodium secretion; reduced RSNA and blood pressure. In conclusion, prenatal LPS leads to increased RAS expression within the PVN and overactivation of the sympathetic outflow, thereby contributing to hypertension in offspring rats. Melatonin is expected to be a promising agent for preventing prenatal LPS exposure-induced hypertension.
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Affiliation(s)
- Xueqin Hao
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
- Department of Anesthesiology, the First affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| | - Xueting Long
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Lingling Fan
- Department of Physiology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Jijia Gou
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yuchao Liu
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yifan Fu
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Huijuan Zhao
- Department of human Anatomy and Histoembryology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Xiaojuan Xie
- Department of Anesthesiology, the First affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| | - Dongmei Wang
- Department of Microbiology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Gaofeng Liang
- Department of Pathology, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yujia Ye
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Jing Wang
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Sanqiang Li
- Department of Biochemistry, College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China.
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, China
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Hahn EE, Stiller J, Alexander MR, Grealy A, Taylor JM, Jackson N, Frere CH, Holleley CE. Century-old chromatin architecture revealed in formalin-fixed vertebrates. Nat Commun 2024; 15:6378. [PMID: 39075073 PMCID: PMC11286846 DOI: 10.1038/s41467-024-50668-4] [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: 11/28/2023] [Accepted: 07/18/2024] [Indexed: 07/31/2024] Open
Abstract
Gene expression is regulated by changes in chromatin architecture intrinsic to cellular differentiation and as an active response to environmental stimuli. Chromatin dynamics are a major driver of phenotypic diversity, regulation of development, and manifestation of disease. Remarkably, we know little about the evolutionary dynamics of chromatin reorganisation through time, data essential to characterise the impact of environmental stress during the ongoing biodiversity extinction crisis (20th-21st century). Linking the disparate fields of chromatin biology and museum science through their common use of the preservative formaldehyde (a constituent of formalin), we have generated historical chromatin profiles in museum specimens up to 117 years old. Historical chromatin profiles are reproducible, tissue-specific, sex-specific, and environmental condition-dependent in vertebrate specimens. Additionally, we show that over-fixation modulates differential chromatin accessibility to enable semi-quantitative estimates of relative gene expression in vertebrates and a yeast model. Our approach transforms formalin-fixed biological collections into an accurate, comprehensive, and global record of environmental impact on gene expression and phenotype.
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Affiliation(s)
- Erin E Hahn
- National Research Collections Australia, Commonwealth Scientific Industrial Research Organisation, Canberra, ACT 2601, Australia
| | - Jiri Stiller
- Agriculture and Food, Commonwealth Scientific Industrial Research Organisation, St Lucia, Queensland, 4067, Australia
| | - Marina R Alexander
- National Research Collections Australia, Commonwealth Scientific Industrial Research Organisation, Canberra, ACT 2601, Australia
| | - Alicia Grealy
- National Research Collections Australia, Commonwealth Scientific Industrial Research Organisation, Canberra, ACT 2601, Australia
| | - Jennifer M Taylor
- Agriculture and Food, Commonwealth Scientific Industrial Research Organisation, St Lucia, Queensland, 4067, Australia
| | - Nicola Jackson
- School of the Environment, University of Queensland, St Lucia, Queensland, 4067, Australia
| | - Celine H Frere
- School of the Environment, University of Queensland, St Lucia, Queensland, 4067, Australia
| | - Clare E Holleley
- National Research Collections Australia, Commonwealth Scientific Industrial Research Organisation, Canberra, ACT 2601, Australia.
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3
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Ge L, Zeng Y, Liu X, Pan X, Yang G, Du Q, He W. Vernicia fordii leaf extract inhibited anthracnose growth by downregulating reactive oxygen species (ROS) levels in vitro and in vivo. PeerJ 2024; 12:e17607. [PMID: 39056057 PMCID: PMC11271649 DOI: 10.7717/peerj.17607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/30/2024] [Indexed: 07/28/2024] Open
Abstract
Background Colletotrichum fructicola is a predominant anthracnose species in Camellia oleifera, causing various adverse effects. Traditional intercropping Vernicia fordii with C. oleifera may enhance anthracnose resistance, but the mechanism remains elusive. Methods We utilized UPLC-MS/MS and acid-base detection to identify the major antimicrobial alkaloid components in the V. fordii leaf extract. Subsequently, by adding different concentrations of V. fordii leaf extract for cultivating C. fructicola, with untreated C. fructicola as a control, we investigated the impact of the V. fordii leaf extract, cell wall integrity, cell membrane permeability, MDA, and ROS content changes. Additionally, analysis of key pathogenic genes of C. fructicola confirmed that the V. fordii leaf extract inhibits the growth of the fungus through gene regulation. Results This study discovered the alkaloid composition of V. fordii leaf extract by UPLC-MS/MS and acid-base detection, such as trigonelline, stachydrine, betaine, and O-Phosphocholine. V. fordii leaf extract successfully penetrated C. fructicola mycelia, damaged cellular integrity, and increased ROS and MDA levels by 1.75 and 2.05 times respectively, thereby inhibiting C. fructicola proliferation. By analyzing the key pathogenic genes of C. fructicola, it was demonstrated that the antifungal function of V. fordii leaf extract depends mainly on the regulation of RAB7 and HAC1 gene expression. Therefore, this study elucidates the mechanism of V. fordii -C. oleifera intercropping in strengthening anthracnose resistance in C. oleifera, contributing to efficient C. oleifera cultivation.
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Affiliation(s)
- Luyao Ge
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
| | - Yanling Zeng
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
| | - Xinyun Liu
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
| | - Xinhai Pan
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
| | - Guliang Yang
- Central South University of Forestry and Technology, National Engineering Laboratory for Rice and By-products Processing, Changsha, Hunan, China
| | - Qinhui Du
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
| | - Wenlin He
- Central South University of Forestry and Technology, Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, Changsha, Hunan, China
- Central South University of Forestry and Technology, Key Lab of Non-Wood Forest Products of State Forestry Administration, Changsha, Hunan, China
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Navarro-Carrasco E, Monte-Serrano E, Campos-Díaz A, Rolfs F, de Goeij-de Haas R, Pham TV, Piersma SR, González-Alonso P, Jiménez CR, Lazo PA. VRK1 Regulates Sensitivity to Oxidative Stress by Altering Histone Epigenetic Modifications and the Nuclear Phosphoproteome in Tumor Cells. Int J Mol Sci 2024; 25:4874. [PMID: 38732093 PMCID: PMC11084957 DOI: 10.3390/ijms25094874] [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: 03/21/2024] [Revised: 04/24/2024] [Accepted: 04/27/2024] [Indexed: 05/13/2024] Open
Abstract
The chromatin organization and its dynamic remodeling determine its accessibility and sensitivity to DNA damage oxidative stress, the main source of endogenous DNA damage. We studied the role of the VRK1 chromatin kinase in the response to oxidative stress. which alters the nuclear pattern of histone epigenetic modifications and phosphoproteome pathways. The early effect of oxidative stress on chromatin was studied by determining the levels of 8-oxoG lesions and the alteration of the epigenetic modification of histones. Oxidative stress caused an accumulation of 8-oxoG DNA lesions that were increased by VRK1 depletion, causing a significant accumulation of DNA strand breaks detected by labeling free 3'-DNA ends. In addition, oxidative stress altered the pattern of chromatin epigenetic marks and the nuclear phosphoproteome pathways that were impaired by VRK1 depletion. Oxidative stress induced the acetylation of H4K16ac and H3K9 and the loss of H3K4me3. The depletion of VRK1 altered all these modifications induced by oxidative stress and resulted in losses of H4K16ac and H3K9ac and increases in the H3K9me3 and H3K4me3 levels. All these changes were induced by the oxidative stress in the epigenetic pattern of histones and impaired by VRK1 depletion, indicating that VRK1 plays a major role in the functional reorganization of chromatin in the response to oxidative stress. The analysis of the nuclear phosphoproteome in response to oxidative stress detected an enrichment of the phosphorylated proteins associated with the chromosome organization and chromatin remodeling pathways, which were significantly decreased by VRK1 depletion. VRK1 depletion alters the histone epigenetic pattern and nuclear phosphoproteome pathways in response to oxidative stress. The enzymes performing post-translational epigenetic modifications are potential targets in synthetic lethality strategies for cancer therapies.
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Affiliation(s)
- Elena Navarro-Carrasco
- Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca, E-37007 Salamanca, Spain; (E.N.-C.); (E.M.-S.); (A.C.-D.); (P.G.-A.)
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, E-37007 Salamanca, Spain
| | - Eva Monte-Serrano
- Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca, E-37007 Salamanca, Spain; (E.N.-C.); (E.M.-S.); (A.C.-D.); (P.G.-A.)
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, E-37007 Salamanca, Spain
| | - Aurora Campos-Díaz
- Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca, E-37007 Salamanca, Spain; (E.N.-C.); (E.M.-S.); (A.C.-D.); (P.G.-A.)
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, E-37007 Salamanca, Spain
| | - Frank Rolfs
- OncoProteomics Laboratory, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (F.R.); (R.d.G.-d.H.); (T.V.P.); (S.R.P.); (C.R.J.)
| | - Richard de Goeij-de Haas
- OncoProteomics Laboratory, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (F.R.); (R.d.G.-d.H.); (T.V.P.); (S.R.P.); (C.R.J.)
| | - Thang V. Pham
- OncoProteomics Laboratory, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (F.R.); (R.d.G.-d.H.); (T.V.P.); (S.R.P.); (C.R.J.)
| | - Sander R. Piersma
- OncoProteomics Laboratory, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (F.R.); (R.d.G.-d.H.); (T.V.P.); (S.R.P.); (C.R.J.)
| | - Paula González-Alonso
- Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca, E-37007 Salamanca, Spain; (E.N.-C.); (E.M.-S.); (A.C.-D.); (P.G.-A.)
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, E-37007 Salamanca, Spain
| | - Connie R. Jiménez
- OncoProteomics Laboratory, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, 1081 HV Amsterdam, The Netherlands; (F.R.); (R.d.G.-d.H.); (T.V.P.); (S.R.P.); (C.R.J.)
| | - Pedro A. Lazo
- Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Salamanca, E-37007 Salamanca, Spain; (E.N.-C.); (E.M.-S.); (A.C.-D.); (P.G.-A.)
- Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, E-37007 Salamanca, Spain
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Boulain M, Morin D, Juvin L. Multigenerational inheritance of breathing deficits following perinatal exposure to titanium dioxide nanoparticles in the offspring of mice. DISCOVER NANO 2024; 19:16. [PMID: 38261116 PMCID: PMC10805760 DOI: 10.1186/s11671-023-03927-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 11/14/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND The utilization of titanium dioxide nanoparticles (TIO2NPs) has experienced a significant surge in recent decades, and these particles are now commonly found in various everyday consumer products. Due to their small size, TIO2NPs can penetrate biological barriers and elicit adverse interactions with biological tissues. Notably, exposure of pregnant females to TIO2NPs during the perinatal period has been shown to disrupt the growth of offspring. Furthermore, this exposure induces epigenetic modifications in the DNA of newborns, suggesting the possibility of multigenerational effects. Thus, perinatal exposure to TIO2NPs may induce immediate metabolic impairments in neonates, which could be transmitted to subsequent generations in the long term. RESULTS In this study, we utilized perinatal exposure of female mice to TIO2NPs through voluntary food intake and observed impaired metabolism in newborn male and female F1 offspring. The exposed newborn mice exhibited reduced body weight gain and a slower breathing rate compared to non-exposed animals. Additionally, a higher proportion of exposed F1 newborns experienced apneas. Similar observations were made when the exposure was limited to the postnatal period, highlighting lactation as a critical period for the adverse effects of TIO2NPs on postnatal metabolism. Importantly, the breathing deficits induced by TIO2NPs were transmitted from F1 females to the subsequent F2 generation. Moreover, re-exposure of adult F1 females to TIO2NPs exacerbated the breathing deficits in newborn F2 males. CONCLUSIONS Our findings demonstrate that perinatal exposure to TIO2NPs disrupts postnatal body weight gain and respiration in the offspring, and these deficits are transmissible to future generations.
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Affiliation(s)
- Marie Boulain
- Univ. Bordeaux, CNRS, INCIA, UMR 5287, 33000, Bordeaux, France
| | - Didier Morin
- Univ. Bordeaux, CNRS, INCIA, UMR 5287, 33000, Bordeaux, France
| | - Laurent Juvin
- Univ. Bordeaux, CNRS, INCIA, UMR 5287, 33000, Bordeaux, France.
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Kumar K, Anjali S, Sharma S. Effect of lead exposure on histone modifications: A review. J Biochem Mol Toxicol 2024; 38:e23547. [PMID: 37867311 DOI: 10.1002/jbt.23547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/21/2023] [Accepted: 09/26/2023] [Indexed: 10/24/2023]
Abstract
Lead at any levels can result in detrimental health effects affecting various organ systems. These systematic manifestations under Pb exposure and the underlying probable pathophysiological mechanisms have not been elucidated completely. With advancements in molecular research under Pb exposure, epigenetics is one of the emerging field that has opened many possibilities for appreciating the role of Pb exposure in modulating gene expression profiles. In terms of epigenetic alterations reported in Pb toxicity, DNA methylation, and microRNA alterations are extensively explored in both experimental and epidemiological studies, however, the understanding of histone modifications under Pb exposure is still in its infant stage limited to experimental models. In this review, we aim to present a synoptic view of histone modifications explored in relation to Pb exposure attempting to bring out this potential lacunae in research. The scarcity of studies associating histone modifications with Pb toxicity, and the paucity of their validation in human cohort further emphasizes the strong research potential of this field. We summarize the review by presenting our hypotheses regarding the involvement of these histone modification in various diseases modalities associated with Pb toxicity.
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Affiliation(s)
- Kanishka Kumar
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Sudha Anjali
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
| | - Shailja Sharma
- Department of Biochemistry, AIIMS Jodhpur, Jodhpur, Rajasthan, India
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Vlahopoulos S, Pan L, Varisli L, Dancik GM, Karantanos T, Boldogh I. OGG1 as an Epigenetic Reader Affects NFκB: What This Means for Cancer. Cancers (Basel) 2023; 16:148. [PMID: 38201575 PMCID: PMC10778025 DOI: 10.3390/cancers16010148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/16/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
8-oxoguanine glycosylase 1 (OGG1), which was initially identified as the enzyme that catalyzes the first step in the DNA base excision repair pathway, is now also recognized as a modulator of gene expression. What is important for cancer is that OGG1 acts as a modulator of NFκB-driven gene expression. Specifically, oxidant stress in the cell transiently halts enzymatic activity of substrate-bound OGG1. The stalled OGG1 facilitates DNA binding of transactivators, such as NFκB to their cognate sites, enabling the expression of cytokines and chemokines, with ensuing recruitment of inflammatory cells. Recently, we highlighted chief aspects of OGG1 involvement in regulation of gene expression, which hold significance in lung cancer development. However, OGG1 has also been implicated in the molecular underpinning of acute myeloid leukemia. This review analyzes and discusses how these cells adapt through redox-modulated intricate connections, via interaction of OGG1 with NFκB, which provides malignant cells with alternative molecular pathways to transform their microenvironment, enabling adjustment, promoting cell proliferation, metastasis, and evading killing by therapeutic agents.
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Affiliation(s)
- Spiros Vlahopoulos
- First Department of Pediatrics, National and Kapodistrian University of Athens, Thivon & Levadeias 8, Goudi, 11527 Athens, Greece
| | - Lang Pan
- Department of Microbiology and Immunology, School of Medicine, University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555, USA;
| | - Lokman Varisli
- Department of Molecular Biology and Genetics, Science Faculty, Dicle University, Diyarbakir 21280, Turkey;
| | - Garrett M. Dancik
- Department of Computer Science, Eastern Connecticut State University, Willimantic, CT 06226, USA;
| | - Theodoros Karantanos
- Division of Hematological Malignancies, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA;
| | - Istvan Boldogh
- Department of Microbiology and Immunology, School of Medicine, University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555, USA;
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Dey A, Pramanik PK, Dwivedi SKD, Neizer-Ashun F, Kiss T, Ganguly A, Rice H, Mukherjee P, Xu C, Ahmad M, Csiszar A, Bhattacharya R. A role for the cystathionine-β-synthase /H 2S axis in astrocyte dysfunction in the aging brain. Redox Biol 2023; 68:102958. [PMID: 37948927 PMCID: PMC10663824 DOI: 10.1016/j.redox.2023.102958] [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: 08/17/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023] Open
Abstract
Astrocytic dysfunction is central to age-related neurodegenerative diseases. However, the mechanisms leading to astrocytic dysfunction are not well understood. We identify that among the diverse cellular constituents of the brain, murine and human astrocytes are enriched in the expression of CBS. Depleting CBS in astrocytes causes mitochondrial dysfunction, increases the production of reactive oxygen species (ROS) and decreases cellular bioenergetics that can be partially rescued by exogenous H2S supplementation or by re-expressing CBS. Conversely, the CBS/H2S axis, associated protein persulfidation and proliferation are decreased in astrocytes upon oxidative stress which can be rescued by exogenous H2S supplementation. Here we reveal that in the aging brain, the CBS/H2S axis is downregulated leading to decreased protein persulfidation, together augmenting oxidative stress. Our findings uncover an important protective role of the CBS/H2S axis in astrocytes that may be disrupted in the aged brain.
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Affiliation(s)
- Anindya Dey
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Pijush Kanti Pramanik
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Shailendra Kumar Dhar Dwivedi
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Fiifi Neizer-Ashun
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Tamas Kiss
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Pediatric Center, Semmelweis University, Budapest, Hungary
| | - Abhrajit Ganguly
- Section of Neonatal-Perinatal Medicine, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Heather Rice
- Department of Biochemistry & Molecular Biology, Oklahoma Center for Geroscience & Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Priyabrata Mukherjee
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Chao Xu
- Department of Biostatistics and Epidemiology, Hudson College of Public Health, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Mohiuddin Ahmad
- Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Anna Csiszar
- Vascular Cognitive Impairment and Neurodegeneration Program, Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Resham Bhattacharya
- Department of Obstetrics and Gynecology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Department of Cell Biology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA; Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA.
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Rungratanawanich W, Ballway JW, Wang X, Won KJ, Hardwick JP, Song BJ. Post-translational modifications of histone and non-histone proteins in epigenetic regulation and translational applications in alcohol-associated liver disease: Challenges and research opportunities. Pharmacol Ther 2023; 251:108547. [PMID: 37838219 DOI: 10.1016/j.pharmthera.2023.108547] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/30/2023] [Accepted: 10/05/2023] [Indexed: 10/16/2023]
Abstract
Epigenetic regulation is a process that takes place through adaptive cellular pathways influenced by environmental factors and metabolic changes to modulate gene activity with heritable phenotypic variations without altering the DNA sequences of many target genes. Epigenetic regulation can be facilitated by diverse mechanisms: many different types of post-translational modifications (PTMs) of histone and non-histone nuclear proteins, DNA methylation, altered levels of noncoding RNAs, incorporation of histone variants, nucleosomal positioning, chromatin remodeling, etc. These factors modulate chromatin structure and stability with or without the involvement of metabolic products, depending on the cellular context of target cells or environmental stimuli, such as intake of alcohol (ethanol) or Western-style high-fat diets. Alterations of epigenetics have been actively studied, since they are frequently associated with multiple disease states. Consequently, explorations of epigenetic regulation have recently shed light on the pathogenesis and progression of alcohol-associated disorders. In this review, we highlight the roles of various types of PTMs, including less-characterized modifications of nuclear histone and non-histone proteins, in the epigenetic regulation of alcohol-associated liver disease (ALD) and other disorders. We also describe challenges in characterizing specific PTMs and suggest future opportunities for basic and translational research to prevent or treat ALD and many other disease states.
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Affiliation(s)
- Wiramon Rungratanawanich
- Section of Molecular Pharmacology and Toxicology, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Jacob W Ballway
- Section of Molecular Pharmacology and Toxicology, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Xin Wang
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Kyoung-Jae Won
- Department of Computational Biomedicine, Cedars-Sinai Medical Center, West Hollywood, CA, 90069, USA
| | - James P Hardwick
- Department of Integrative Medical Sciences, Northeast Ohio Medical University, Rootstown, OH 44272, USA.
| | - Byoung-Joon Song
- Section of Molecular Pharmacology and Toxicology, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892, USA.
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10
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Afzal S, Abdul Manap AS, Attiq A, Albokhadaim I, Kandeel M, Alhojaily SM. From imbalance to impairment: the central role of reactive oxygen species in oxidative stress-induced disorders and therapeutic exploration. Front Pharmacol 2023; 14:1269581. [PMID: 37927596 PMCID: PMC10622810 DOI: 10.3389/fphar.2023.1269581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/02/2023] [Indexed: 11/07/2023] Open
Abstract
Increased production and buildup of reactive oxygen species (ROS) can lead to various health issues, including metabolic problems, cancers, and neurological conditions. Our bodies counteract ROS with biological antioxidants such as SOD, CAT, and GPx, which help prevent cellular damage. However, if there is an imbalance between ROS and these antioxidants, it can result in oxidative stress. This can cause genetic and epigenetic changes at the molecular level. This review delves into how ROS plays a role in disorders caused by oxidative stress. We also look at animal models used for researching ROS pathways. This study offers insights into the mechanism, pathology, epigenetic changes, and animal models to assist in drug development and disease understanding.
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Affiliation(s)
- Sheryar Afzal
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Aimi Syamima Abdul Manap
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Ali Attiq
- Discipline of Pharmacology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Minden, Malaysia
| | - Ibrahim Albokhadaim
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Mahmoud Kandeel
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt
| | - Sameer M. Alhojaily
- Department of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa, Saudi Arabia
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11
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Gęgotek A, Zarkovic N, Orehovec B, Jaganjac M, Sunjic SB, Skrzydlewska E. Short Survey on the Protein Modifications in Plasma during SARS-CoV-2 Infection. Int J Mol Sci 2023; 24:14109. [PMID: 37762413 PMCID: PMC10531908 DOI: 10.3390/ijms241814109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Although the COVID-19 pandemic has ended, it is important to understand the pathology of severe SARS-CoV-2 infection associated with respiratory failure and high mortality. The plasma proteome, including protein modification by lipid peroxidation products in COVID-19 survivors (COVID-19; n = 10) and deceased individuals (CovDeath; n = 10) was compared in samples collected upon admission to the hospital, when there was no difference in their status, with that of healthy individuals (Ctr; n = 10). The obtained results show that COVID-19 development strongly alters the expression of proteins involved in the regulation of exocytosis and platelet degranulation (top 20 altered proteins indicated by analysis of variance; p-value (False Discovery Rate) cutoff at 5%). These changes were most pronounced in the CovDeath group. In addition, the levels of 4-hydroxynonenal (4-HNE) adducts increased 2- and 3-fold, whereas malondialdehyde (MDA) adducts increased 7- and 2.5-fold, respectively, in COVID-19 and CovDeath groups. Kinases and proinflammatory proteins were particularly affected by these modifications. Protein adducts with 15-deoxy-12,14-prostaglandin J2 (15d-PGJ2) were increased 2.5-fold in COVID-19 patients, including modifications of proteins such as p53 and STAT3, whereas CovDeath showed a decrease of approximately 60% compared with Ctr. This study for the first time demonstrates the formation of lipid metabolism products-protein adducts in plasma from survived and deceased COVID-19 patients, significantly distinguishing them, which may be a predictor of the course of SARS-CoV-2 infection.
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Affiliation(s)
- Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-069 Bialystok, Poland;
| | - Neven Zarkovic
- Ruder Boskovic Institute, Div. Molecular Medicine Laboratory for Oxidative Stress Bijenicka 54, HR-10000 Zagreb, Croatia; (N.Z.); (M.J.); (S.B.S.)
| | | | - Morana Jaganjac
- Ruder Boskovic Institute, Div. Molecular Medicine Laboratory for Oxidative Stress Bijenicka 54, HR-10000 Zagreb, Croatia; (N.Z.); (M.J.); (S.B.S.)
| | - Suzana Borovic Sunjic
- Ruder Boskovic Institute, Div. Molecular Medicine Laboratory for Oxidative Stress Bijenicka 54, HR-10000 Zagreb, Croatia; (N.Z.); (M.J.); (S.B.S.)
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-069 Bialystok, Poland;
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12
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Domka W, Bartusik-Aebisher D, Przygoda M, Dynarowicz K, Tomik J, Aebisher D. PDT-Induced Activation Enhanced by Hormone Response to Treatment. Int J Mol Sci 2023; 24:13917. [PMID: 37762219 PMCID: PMC10531063 DOI: 10.3390/ijms241813917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/02/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Photodynamic therapy (PDT) is a medical treatment with the use of a photosensitizing agent (PS), which, when activated by light, results in selective tissue damage with a cytotoxic effect on tumor cells. PDT leads to the induction of an acute-phase response, which results in the involvement of adrenal glucocorticoid (GC) hormones. PDT, by activating the hormonal response, affects the treatment of cancer. GC release is observed due to adrenal activity, which is driven by changes in the hypothalamic pituitary-adrenal axis triggered by stress signals emanating from the PDT treated tumor. The hormones released in this process in the context of the PDT-induced acute-phase response perform many important functions during anticancer therapy. They lead, among other things, to the systemic mobilization of neutrophils and the production of acute-phase reagents, and also control the production of immunoregulatory proteins and proteins that modulate inflammation. GCs can radically affect the activity of various inflammatory and immune cells, including the apoptosis of cancer cells. A better understanding of the modulation of GC activity could improve the outcomes of cancer patients treated with PDT.
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Affiliation(s)
- Wojciech Domka
- Department of Otolaryngology, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Dorota Bartusik-Aebisher
- Department of Biochemistry and General Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Maria Przygoda
- Students English Division Science Club, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland;
| | - Klaudia Dynarowicz
- Center for Innovative Research in Medical and Natural Sciences, Medical College of the University of Rzeszów, 35-310 Rzeszów, Poland;
| | - Jerzy Tomik
- Department of Otolaryngology, Collegium Medicum, Jagiellonian University, 30-688 Krakow, Poland;
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszów, 35-959 Rzeszów, Poland
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13
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Ghosh P, Fontanella RA, Scisciola L, Pesapane A, Taktaz F, Franzese M, Puocci A, Ceriello A, Prattichizzo F, Rizzo MR, Paolisso G, Barbieri M. Targeting redox imbalance in neurodegeneration: characterizing the role of GLP-1 receptor agonists. Theranostics 2023; 13:4872-4884. [PMID: 37771773 PMCID: PMC10526673 DOI: 10.7150/thno.86831] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/06/2023] [Indexed: 09/30/2023] Open
Abstract
Reactive oxygen species (ROS) have emerged as essential signaling molecules regulating cell survival, death, inflammation, differentiation, growth, and immune response. Environmental factors, genetic factors, or many pathological condition such as diabetes increase the level of ROS generation by elevating the production of advanced glycation end products, reducing free radical scavengers, increasing mitochondrial oxidative stress, and by interfering with DAG-PKC-NADPH oxidase and xanthine oxidase pathways. Oxidative stress, and therefore the accumulation of intracellular ROS, determines the deregulation of several proteins and caspases, damages DNA and RNA, and interferes with normal neuronal function. Furthermore, ROS play an essential role in the polymerization, phosphorylation, and aggregation of tau and amyloid-beta, key mediators of cognitive function decline. At the neuronal level, ROS interfere with the DNA methylation pattern and various apoptotic factors related to cell death, promoting neurodegeneration. Only few drugs are able to quench ROS production in neurons. The cross-linking pathways between diabetes and dementia suggest that antidiabetic medications can potentially treat dementia. Among antidiabetic drugs, glucagon-like peptide-1 receptor agonists (GLP-1RAs) have been found to reduce ROS generation and ameliorate mitochondrial function, protein aggregation, neuroinflammation, synaptic plasticity, learning, and memory. The incretin hormone glucagon-like peptide-1 (GLP-1) is produced by the enteroendocrine L cells in the distal intestine after food ingestion. Upon interacting with its receptor (GLP-1R), it regulates blood glucose levels by inducing insulin secretion, inhibiting glucagon production, and slowing gastric emptying. No study has evidenced a specific GLP-1RA pathway that quenches ROS production. Here we summarize the effects of GLP-1RAs against ROS overproduction and discuss the putative efficacy of Exendin-4, Lixisenatide, and Liraglutide in treating dementia by decreasing ROS.
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Affiliation(s)
- Puja Ghosh
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Rosaria Anna Fontanella
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Lucia Scisciola
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Ada Pesapane
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Fatemeh Taktaz
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Martina Franzese
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Armando Puocci
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Maria Rosaria Rizzo
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giuseppe Paolisso
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
- UniCamillus, International Medical University, Rome Italy
| | - Michelangela Barbieri
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Naples, Italy
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14
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Xia W, Guo X, Xie P, Feng L, Wu B, Gao J, Ma S, Liu H, Sun C, Qu G, Sun Y. Associations of nickel exposure with diabetes: evidence from observational studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100233-100247. [PMID: 37612551 DOI: 10.1007/s11356-023-29423-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023]
Abstract
The results of environmental epidemiological studies regarding the relationship between human exposure to nickel and the risk of diabetes remain controversial. Therefore, we performed a meta-analysis to investigate the relationship between nickel exposure and diabetes. PubMed, Web of Science, and Embase electronic databases were thoroughly searched from their inception to May 2023 to obtain relevant studies. The random-effects model was employed to determine pooled odds ratios (ORs) and 95% confidence intervals (CIs). Stratified and sensitivity analyses were also performed. Cochran Q test and I2 statistic were employed to assess heterogeneity between studies. Begg's and Egger's tests were employed to evaluate publication bias. The indicated studies were evaluated using the ROBINS-E risk of bias tool. The dose-response relationship between nickel in urine and diabetes risk was estimated by restricted cubic spline. A total of 12 studies with 30,018 participants were included in this study. In this meta-analysis, comparing the highest vs. lowest levels of nickel exposure, the pooled ORs for diabetes were 1.42 (95% confidence interval 1.14-1.78) for urine and 1.03 (0.57-1.86) for blood, respectively. A linear relationship between urinary nickel and diabetes risk was discovered in the dose-response analysis (P nonlinearity = 0.6198). Each 1 µg/L increase of urinary nickel, the risk of diabetes increased by 7% (OR = 1.07, 95% CI 1.04-1.10). The risk of diabetes was positively correlated with urine nickel exposure, whereas the risk was not significantly correlated with blood nickel. In the future, more high-quality prospective studies are needed to validate this conclusion.
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Affiliation(s)
- Weihang Xia
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Xianwei Guo
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Peng Xie
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Linya Feng
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Birong Wu
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Juan Gao
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Shaodi Ma
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Haixia Liu
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Chenyu Sun
- Department of Thyroid and Breast Surgery, The Second Affiliated Hospital of Anhui Medical University, Furong Road 678, Hefei, 230601, Anhui, People's Republic of China
| | - Guangbo Qu
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | - Yehuan Sun
- Department of Epidemiology and Health Statistics, School of Public, Health Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China.
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15
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Fink EE, Nanavaty V, Lee BH, Ting AH. Heat shock induces alternative polyadenylation through dynamic DNA methylation-regulated chromatin looping. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.25.554792. [PMID: 37662379 PMCID: PMC10473739 DOI: 10.1101/2023.08.25.554792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Alternative cleavage and polyadenylation (APA) is a gene regulatory mechanism used by cells under stress to upregulate proteostasis-promoting transcripts, but how cells achieve this remains poorly understood. Previously, we elucidated a DNA methylation-regulated APA mechanism, in which gene body DNA methylation enhances distal poly(A) isoform expression by blocking CTCF binding and chromatin loop formation at APA control regions. We hypothesized that DNA methylation-regulated APA is one mechanism cells employ to induce proteostasis-promoting poly(A) isoforms. At the DNAJB6 co-chaperone gene locus, acute heat shock resulted in binding of stress response transcription factors HSF1, ATF6, and YY1 at the APA control region and an increase in the expression of the proximal poly(A) isoform known to prevent protein aggregation. Furthermore, TET1 was recruited to rapidly demethylate DNA, facilitating CTCF binding and chromatin loop formation, thereby reinforcing preferential proximal poly(A) isoform expression. As cells recovered, the transcription factors vacated the APA control region, and DNMT1 was recruited to remethylate the region. This process resolved chromatin looping and reset the poly(A) isoform expression pattern. Our findings unveil an epigenetic mechanism enabling cells to dynamically modulate poly(A) isoforms in response to stress while shedding light on the interplay between DNA methylation, transcription factors, and chromatin looping.
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16
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Kciuk M, Alam M, Ali N, Rashid S, Głowacka P, Sundaraj R, Celik I, Yahya EB, Dubey A, Zerroug E, Kontek R. Epigallocatechin-3-Gallate Therapeutic Potential in Cancer: Mechanism of Action and Clinical Implications. Molecules 2023; 28:5246. [PMID: 37446908 DOI: 10.3390/molecules28135246] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Cellular signaling pathways involved in the maintenance of the equilibrium between cell proliferation and apoptosis have emerged as rational targets that can be exploited in the prevention and treatment of cancer. Epigallocatechin-3-gallate (EGCG) is the most abundant phenolic compound found in green tea. It has been shown to regulate multiple crucial cellular signaling pathways, including those mediated by EGFR, JAK-STAT, MAPKs, NF-κB, PI3K-AKT-mTOR, and others. Deregulation of the abovementioned pathways is involved in the pathophysiology of cancer. It has been demonstrated that EGCG may exert anti-proliferative, anti-inflammatory, and apoptosis-inducing effects or induce epigenetic changes. Furthermore, preclinical and clinical studies suggest that EGCG may be used in the treatment of numerous disorders, including cancer. This review aims to summarize the existing knowledge regarding the biological properties of EGCG, especially in the context of cancer treatment and prophylaxis.
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Affiliation(s)
- Mateusz Kciuk
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
- Doctoral School of Exact and Natural Sciences, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
| | - Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Pola Głowacka
- Department of Medical Biochemistry, Medical University of Lodz, Mazowiecka 6/8, 90-001 Lodz, Poland
- Doctoral School of Medical University of Lodz, Hallera 1 Square, 90-700 Lodz, Poland
| | - Rajamanikandan Sundaraj
- Department of Biochemistry, Centre for Drug Discovery, Karpagam Academy of Higher Education, Coimbatore 641021, India
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri 38280, Turkey
| | - Esam Bashir Yahya
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Amit Dubey
- Computational Chemistry and Drug Discovery Division, Quanta Calculus, Greater Noida 201310, India
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospital, Chennai 600077, India
| | - Enfale Zerroug
- LMCE Laboratory, Group of Computational and Pharmaceutical Chemistry, University of Biskra, Biskra 07000, Algeria
| | - Renata Kontek
- Department of Molecular Biotechnology and Genetics, University of Lodz, Banacha Street 12/16, 90-237 Lodz, Poland
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17
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Lazo PA, Morejón-García P. VRK1 variants at the cross road of Cajal body neuropathogenic mechanisms in distal neuropathies and motor neuron diseases. Neurobiol Dis 2023; 183:106172. [PMID: 37257665 DOI: 10.1016/j.nbd.2023.106172] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023] Open
Abstract
Distal hereditary neuropathies and neuro motor diseases are complex neurological phenotypes associated with pathogenic variants in a large number of genes, but in some the origin is unknown. Recently, rare pathogenic variants of the human VRK1 gene have been associated with these neurological phenotypes. All VRK1 pathogenic variants are recessive, and their clinical presentation occurs in either homozygous or compound heterozygous patients. The pathogenic VRK1 gene pathogenic variants are located in three clusters within the protein sequence. The main, and initial, shared clinical phenotype among VRK1 pathogenic variants is a distal progressive loss of motor and/or sensory function, which includes diseases such as spinal muscular atrophy, Charcot-Marie-Tooth, amyotrophic lateral sclerosis and hereditary spastic paraplegia. In most cases, symptoms start early in infancy, or in utero, and are slowly progressive. Additional neurological symptoms vary among non-related patients, probably because of their different VRK1 variants and their genetic background. The underlying common pathogenic mechanism, by its functional impairment, is a likely consequence of the roles that the VRK1 protein plays in the regulation on the stability and assembly of Cajal bodies, which affect RNA maturation and processing, neuronal migration of RNPs along axons, and DNA-damage responses. Alterations of these processes are associated with several neuro sensory or motor syndromes. The clinical heterogeneity of the neurological phenotypes associated with VRK1 is a likely consequence of the protein complexes in which VRK1 is integrated, which include several proteins known to be associated with Cajal bodies and DNA damage responses. Several hereditary distal neurological diseases are a consequence of pathogenic variants in genes that alter these cellular functions. We conclude that VRK1-related distal hereditary neuropathies and motor neuron diseases represent a novel subgroup of Cajal body related neurological syndromes.
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Affiliation(s)
- Pedro A Lazo
- Molecular Mechanisms of Cancer Program, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - Universidad de Salamanca, Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, Salamanca, Spain.
| | - Patricia Morejón-García
- Molecular Mechanisms of Cancer Program, Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC) - Universidad de Salamanca, Salamanca, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Hospital Universitario de Salamanca, Salamanca, Spain.
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18
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Rubio K, Hernández-Cruz EY, Rogel-Ayala DG, Sarvari P, Isidoro C, Barreto G, Pedraza-Chaverri J. Nutriepigenomics in Environmental-Associated Oxidative Stress. Antioxidants (Basel) 2023; 12:antiox12030771. [PMID: 36979019 PMCID: PMC10045733 DOI: 10.3390/antiox12030771] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Complex molecular mechanisms define our responses to environmental stimuli. Beyond the DNA sequence itself, epigenetic machinery orchestrates changes in gene expression induced by diet, physical activity, stress and pollution, among others. Importantly, nutrition has a strong impact on epigenetic players and, consequently, sustains a promising role in the regulation of cellular responses such as oxidative stress. As oxidative stress is a natural physiological process where the presence of reactive oxygen-derived species and nitrogen-derived species overcomes the uptake strategy of antioxidant defenses, it plays an essential role in epigenetic changes induced by environmental pollutants and culminates in signaling the disruption of redox control. In this review, we present an update on epigenetic mechanisms induced by environmental factors that lead to oxidative stress and potentially to pathogenesis and disease progression in humans. In addition, we introduce the microenvironment factors (physical contacts, nutrients, extracellular vesicle-mediated communication) that influence the epigenetic regulation of cellular responses. Understanding the mechanisms by which nutrients influence the epigenome, and thus global transcription, is crucial for future early diagnostic and therapeutic efforts in the field of environmental medicine.
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Affiliation(s)
- Karla Rubio
- International Laboratory EPIGEN, Consejo de Ciencia y Tecnología del Estado de Puebla (CONCYTEP), Instituto de Ciencias, Ecocampus, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico
- Laboratoire IMoPA, Université de Lorraine, CNRS, UMR 7365, F-54000 Nancy, France
- Lung Cancer Epigenetics, Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - Estefani Y Hernández-Cruz
- Postgraduate in Biological Sciences, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de Mexico 04510, Mexico
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad de Mexico 04510, Mexico
| | - Diana G Rogel-Ayala
- Laboratoire IMoPA, Université de Lorraine, CNRS, UMR 7365, F-54000 Nancy, France
- Lung Cancer Epigenetics, Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | | | - Ciro Isidoro
- Department of Health Sciences, Università del Piemonte Orientale, Via Paolo Solaroli 17, 28100 Novara, Italy
| | - Guillermo Barreto
- International Laboratory EPIGEN, Consejo de Ciencia y Tecnología del Estado de Puebla (CONCYTEP), Instituto de Ciencias, Ecocampus, Benemérita Universidad Autónoma de Puebla (BUAP), Puebla 72570, Mexico
- Laboratoire IMoPA, Université de Lorraine, CNRS, UMR 7365, F-54000 Nancy, France
- Lung Cancer Epigenetics, Max-Planck-Institute for Heart and Lung Research, 61231 Bad Nauheim, Germany
| | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad de Mexico 04510, Mexico
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19
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Silva-Llanes I, Shin CH, Jiménez-Villegas J, Gorospe M, Lastres-Becker I. The Transcription Factor NRF2 Has Epigenetic Regulatory Functions Modulating HDACs, DNMTs, and miRNA Biogenesis. Antioxidants (Basel) 2023; 12:641. [PMID: 36978889 PMCID: PMC10045347 DOI: 10.3390/antiox12030641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
The epigenetic regulation of gene expression is a complex and tightly regulated process that defines cellular identity and is associated with health and disease processes. Oxidative stress is capable of inducing epigenetic modifications. The transcription factor NRF2 (nuclear factor erythroid-derived 2-like 2) is a master regulator of cellular homeostasis, regulating genes bearing antioxidant response elements (AREs) in their promoters. Here, we report the identification of ARE sequences in the promoter regions of genes encoding several epigenetic regulatory factors, such as histone deacetylases (HDACs), DNA methyltransferases (DNMTs), and proteins involved in microRNA biogenesis. In this research, we study this possibility by integrating bioinformatic, genetic, pharmacological, and molecular approaches. We found ARE sequences in the promoter regions of genes encoding several HDACs, DNMTs, and proteins involved in miRNA biogenesis. We confirmed that NRF2 regulates the production of these genes by studying NRF2-deficient cells and cells treated with dimethyl fumarate (DMF), an inducer of the NRF2 signaling pathway. In addition, we found that NRF2 could be involved in the target RNA-dependent microRNA degradation (TDMD) of miR-155-5p through its interaction with Nfe2l2 mRNA. Our data indicate that NRF2 has an epigenetic regulatory function, complementing its traditional function and expanding the regulatory dimensions that should be considered when developing NRF2-centered therapeutic strategies.
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Affiliation(s)
- Ignacio Silva-Llanes
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
| | - Chang Hoon Shin
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - José Jiménez-Villegas
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
- Department of Biochemistry, School of Medicine, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA
| | - Isabel Lastres-Becker
- Instituto de Investigaciones Biomédicas “Alberto Sols” UAM-CSIC, Arturo Duperier, 4, 28029 Madrid, Spain
- Instituto de Investigación Sanitaria La Paz (IdiPaz), 28046 Madrid, Spain
- Department of Biochemistry, School of Medicine, Universidad Autónoma de Madrid, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, 28031 Madrid, Spain
- Institute Teófilo Hernando for Drug Discovery, Universidad Autónoma de Madrid, 28029 Madrid, Spain
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20
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Azemin WA, Alias N, Ali AM, Shamsir MS. In silico analysis prediction of HepTH1-5 as a potential therapeutic agent by targeting tumour suppressor protein networks. J Biomol Struct Dyn 2023; 41:1141-1167. [PMID: 34935583 DOI: 10.1080/07391102.2021.2017349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Many studies reported that the activation of tumour suppressor protein, p53 induced the human hepcidin expression. However, its expression decreased when p53 was silenced in human hepatoma cells. Contrary to Tilapia hepcidin TH1-5, HepTH1-5 was previously reported to trigger the p53 activation through the molecular docking approach. The INhibitor of Growth (ING) family members are also shown to directly interact with p53 and promote cell cycle arrest, senescence, apoptosis and participate in DNA replication and DNA damage responses to suppress the tumour initiation and progression. However, the interrelation between INGs and HepTH1-5 remains unknown. Therefore, this study aims to identify the mechanism and their protein interactions using in silico approaches. The finding revealed that HepTH1-5 and its ligands had interacted mostly on hotspot residues of ING proteins which involved in histone modifications via acetylation, phosphorylation, and methylation. This proves that HepTH1-5 might implicate in an apoptosis signalling pathway and preserve the protein structure and function of INGs by reducing the perturbation of histone binding upon oxidative stress response. This study would provide theoretical guidance for the design and experimental studies to decipher the role of HepTH1-5 as a potential therapeutic agent for cancer therapy. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Wan-Atirah Azemin
- Faculty of Bioresources and Food Industry, School of Agriculture Science and Biotechnology, Universiti Sultan Zainal Abidin, Besut, Malaysia.,Faculty of Science, Bioinformatics Research Group (BIRG), Department of Biosciences, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Nadiawati Alias
- Faculty of Bioresources and Food Industry, School of Agriculture Science and Biotechnology, Universiti Sultan Zainal Abidin, Besut, Malaysia
| | - Abdul Manaf Ali
- Faculty of Bioresources and Food Industry, School of Agriculture Science and Biotechnology, Universiti Sultan Zainal Abidin, Besut, Malaysia
| | - Mohd Shahir Shamsir
- Faculty of Science, Bioinformatics Research Group (BIRG), Department of Biosciences, Universiti Teknologi Malaysia, Skudai, Malaysia.,Faculty of Applied Sciences and Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Higher Education Hub, Muar, Malaysia
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21
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Zhang Z, Tan Y, Huang C, Wei X. Redox signaling in drug-tolerant persister cells as an emerging therapeutic target. EBioMedicine 2023; 89:104483. [PMID: 36827719 PMCID: PMC9982619 DOI: 10.1016/j.ebiom.2023.104483] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 02/25/2023] Open
Abstract
Drug-tolerant persister (DTP) cells have attracted significant interest, given their predominant role in treatment failure. In this respect, DTP cells reportedly survive after anticancer drug exposure, and their DNA repair mechanisms are altered to enhance adaptive mutation, accounting for the emergence of drug-resistant mutations. DTP cells resume proliferation upon treatment withdrawal and are responsible for cancer relapse. Current evidence suggests that DTP cells mediate redox signaling-mediated cellular homeostasis by developing various adaptive mechanisms, especially metabolic reprogramming that promotes mitochondrial oxidative respiration and a robust antioxidant process. There is an increasing consensus that disrupting redox homeostasis by intervening with redox signaling is theoretically a promising therapeutic strategy for targeting these sinister cells. In this review, we provide a comprehensive overview of the characteristics of DTP cells and the underlying mechanisms involved in redox signaling, aiming to provide a unique perspective on potential therapeutic applications based on their vulnerabilities to redox regulation.
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Affiliation(s)
- Zhe Zhang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, PR China; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Yunhan Tan
- West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China.
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, PR China.
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22
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Binjawhar DN, Alhazmi AT, Bin Jawhar WN, MohammedSaeed W, Safi SZ. Hyperglycemia-induced oxidative stress and epigenetic regulation of ET-1 gene in endothelial cells. Front Genet 2023; 14:1167773. [PMID: 37139232 PMCID: PMC10150048 DOI: 10.3389/fgene.2023.1167773] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 03/31/2023] [Indexed: 05/05/2023] Open
Abstract
Introduction: Hyperglycemia-induced endothelial dysfunction and the subsequent increase of oxidative stress could lead to aberrant regulation of various genes which are responsible for a range of functions. This study aims to find out how hyperglycemia affect oxidative stress and then the expression and methylation of endothelin 1 (ET-1) gene in in human umbilical vein endothelial cells (HUVEC). Methods: Cells were cultured in growth medium and exposed to low and high glucose concentrations to mimic normal and diabetic condition respectively. Computational analysis were performed using UCSC genome browser and eukaryotic promoter database (EPD). The expression of ET-1 gene was investigated by real time PCR. Cytotoxicity and oxidative stress were determined by MTT and DCFH-DA assays respectively. Promoter methylation was assessed by the bisulfite sequencing method. Results: DCFH-DA assay showed that hyperglycemia can significantly increase the regulation of reactive oxygen species synthesis. The relative expression of ET-1 gene was increased due to exposure to high glucose concentration. MTT assay revealed reduced viability of cells due to the glucose induced damage. Methylation analysis revealed hypomethylation of the promoter of ET-1 however the difference was not significant. Out of 175 CpGs at 25 CpG sites, only 36 CpGs were methylated (20.5% methylation) in cell treated with normal glucose. Upon exposure to high glucose only 30 CpGs were methylated in 175 CpGs at 25 CpG sites (17.1% methylation). Discussion: Our study concludes a significantly high expression of ET-1 gene in response to high glucose exposure in HUVECs. It also reports that hyperglycemic condition leads to elevated oxidative stress. No significant change was found in methylation when cells were treated with high and low glucose concentrations.
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Affiliation(s)
- Dalal Nasser Binjawhar
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Alaa T. Alhazmi
- Hera General Hospital, Makkah, Saudi Arabia
- *Correspondence: Alaa T. Alhazmi, ; Wejdan Nasser Bin Jawhar, ; Walaa MohammedSaeed, ; Sher Zaman Safi,
| | - Wejdan Nasser Bin Jawhar
- Faculty—Clinical Laboratory Sciences Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
- *Correspondence: Alaa T. Alhazmi, ; Wejdan Nasser Bin Jawhar, ; Walaa MohammedSaeed, ; Sher Zaman Safi,
| | - Walaa MohammedSaeed
- Department of Medical Laboratory Technology, Faculty of Applied Medical Science at Taibah University, Al Madinah Al Munawarah, Saudi Arabia
- *Correspondence: Alaa T. Alhazmi, ; Wejdan Nasser Bin Jawhar, ; Walaa MohammedSaeed, ; Sher Zaman Safi,
| | - Sher Zaman Safi
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor, Malaysia
- *Correspondence: Alaa T. Alhazmi, ; Wejdan Nasser Bin Jawhar, ; Walaa MohammedSaeed, ; Sher Zaman Safi,
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23
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Oxidative Stress and Nuclear Reprogramming: A Pilot Study of the Effects of Reactive Oxygen Species on Architectural and Epigenetic Landscapes. Int J Mol Sci 2022; 24:ijms24010153. [PMID: 36613595 PMCID: PMC9820425 DOI: 10.3390/ijms24010153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Cell genome integrity is continuously threatened by various sources, both endogenous and exogenous. Oxidative stress causes a multitude of damages, severely affecting cell viability, fidelity of genetic information inheritance, and determining profound alterations in gene expression. Epigenetics represents a major form of gene expression modulation, influencing DNA accessibility to transcription factors and the overall nuclear architecture. When assessing the stress-induced epigenome reprogramming, widely diffused biochemical and molecular approaches commonly fail to incorporate analyses such as architectural chromatin alterations and target molecules precise spatial localization. Unveiling the significance of the nuclear response to the oxidative stress, as well as the functional effects over the chromatin organization, may reveal targets and strategies for approaches aiming at limiting the impact on cellular stability. For these reasons, we utilized potassium bromate treatment, a stressor able to induce DNA damages without altering the cellular microenvironment, hence purely modeling nuclear oxidative stress. By means of high-resolution techniques, we described profound alterations in DNA and histone epigenetic modifications and in chromatin organization in response to the reactive oxygen species.
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24
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Yang J, Liu C, Sun H, Liu Y, Liu Z, Zhang D, Zhao G, Wang Q, Yang D. The progress in titanium alloys used as biomedical implants: From the view of reactive oxygen species. Front Bioeng Biotechnol 2022; 10:1092916. [PMID: 36601391 PMCID: PMC9806234 DOI: 10.3389/fbioe.2022.1092916] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Titanium and Titanium alloys are widely used as biomedical implants in oral and maxillofacial surgery, due to superior mechanical properties and biocompatibility. In specific clinical populations such as the elderly, diabetics and patients with metabolic diseases, the failure rate of medical metal implants is increased significantly, putting them at increased risk of revision surgery. Many studies show that the content of reactive oxygen species (ROS) in the microenvironment of bone tissue surrounding implant materials is increased in patients undergoing revision surgery. In addition, the size and shape of materials, the morphology, wettability, mechanical properties, and other properties play significant roles in the production of ROS. The accumulated ROS break the original balance of oxidation and anti-oxidation, resulting in host oxidative stress. It may accelerate implant degradation mainly by activating inflammatory cells. Peri-implantitis usually leads to a loss of bone mass around the implant, which tends to affect the long-term stability and longevity of implant. Therefore, a great deal of research is urgently needed to focus on developing antibacterial technologies. The addition of active elements to biomedical titanium and titanium alloys greatly reduce the risk of postoperative infection in patients. Besides, innovative technologies are developing new biomaterials surfaces conferring anti-infective properties that rely on the production of ROS. It can be considered that ROS may act as a messenger substance for the communication between the host and the implanted material, which run through the entire wound repair process and play a role that cannot be ignored. It is necessary to understand the interaction between oxidative stress and materials, the effects of oxidative stress products on osseointegration and implant life as well as ROS-induced bactericidal activity. This helps to facilitate the development of a new generation of well-biocompatible implant materials with ROS responsiveness, and ultimately prolong the lifespan of implants.
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Affiliation(s)
- Jun Yang
- School of Stomatology, Jiamusi University, Jiamusi, China,Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Chang Liu
- School of Stomatology, Jiamusi University, Jiamusi, China,Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Hui Sun
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Ying Liu
- The Affiliated Taian City Central Hospital of Qingdao University, Taian, China
| | - Zhaogang Liu
- The Affiliated Taian City Central Hospital of Qingdao University, Taian, China
| | - Dan Zhang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China,*Correspondence: Donghong Yang, ; Dan Zhang,
| | - Gang Zhao
- School of Stomatology, Jiamusi University, Jiamusi, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Donghong Yang
- School of Stomatology, Jiamusi University, Jiamusi, China,*Correspondence: Donghong Yang, ; Dan Zhang,
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25
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WiFi Related Radiofrequency Electromagnetic Fields Promote Transposable Element Dysregulation and Genomic Instability in Drosophila melanogaster. Cells 2022; 11:cells11244036. [PMID: 36552798 PMCID: PMC9776602 DOI: 10.3390/cells11244036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Exposure to artificial radio frequency electromagnetic fields (RF-EMFs) has greatly increased in recent years, thus promoting a growing scientific and social interest in deepening the biological impact of EMFs on living organisms. The current legislation governing the exposure to RF-EMFs is based exclusively on their thermal effects, without considering the possible non-thermal adverse health effects from long term exposure to EMFs. In this study we investigated the biological non-thermal effects of low-level indoor exposure to RF-EMFs produced by WiFi wireless technologies, using Drosophila melanogaster as the model system. Flies were exposed to 2.4 GHz radiofrequency in a Transverse Electromagnetic (TEM) cell device to ensure homogenous controlled fields. Signals were continuously monitored during the experiments and regulated at non thermal levels. The results of this study demonstrate that WiFi electromagnetic radiation causes extensive heterochromatin decondensation and thus a general loss of transposable elements epigenetic silencing in both germinal and neural tissues. Moreover, our findings provide evidence that WiFi related radiofrequency electromagnetic fields can induce reactive oxygen species (ROS) accumulation, genomic instability, and behavioural abnormalities. Finally, we demonstrate that WiFi radiation can synergize with RasV12 to drive tumor progression and invasion. All together, these data indicate that radiofrequency radiation emitted from WiFi devices could exert genotoxic effects in Drosophila and set the stage to further explore the biological effects of WiFi electromagnetic radiation on living organisms.
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A metabolic associated fatty liver disease risk variant in MBOAT7 regulates toll like receptor induced outcomes. Nat Commun 2022; 13:7430. [PMID: 36473860 PMCID: PMC9726889 DOI: 10.1038/s41467-022-35158-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
The breakdown of toll-like receptor (TLR) tolerance results in tissue damage, and hyperactivation of the TLRs and subsequent inflammatory consequences have been implicated as risk factors for more severe forms of disease and poor outcomes from various diseases including COVID-19 and metabolic (dysfunction) associated fatty liver disease (MAFLD). Here we provide evidence that membrane bound O-acyltransferase domain containing 7 (MBOAT7) is a negative regulator of TLR signalling. MBOAT7 deficiency in macrophages as observed in patients with MAFLD and in COVID-19, alters membrane phospholipid composition. We demonstrate that this is associated with a redistribution of arachidonic acid toward proinflammatory eicosanoids, induction of endoplasmic reticulum stress, mitochondrial dysfunction, and remodelling of the accessible inflammatory-related chromatin landscape culminating in macrophage inflammatory responses to TLRs. Activation of MBOAT7 reverses these effects. These outcomes are further modulated by the MBOAT7 rs8736 (T) MAFLD risk variant. Our findings suggest that MBOAT7 can potentially be explored as a therapeutic target for diseases associated with dysregulation of the TLR signalling cascade.
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27
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Elkin ER, Higgins C, Aung MT, Bakulski KM. Metals Exposures and DNA Methylation: Current Evidence and Future Directions. Curr Environ Health Rep 2022; 9:673-696. [PMID: 36282474 PMCID: PMC10082670 DOI: 10.1007/s40572-022-00382-4] [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] [Accepted: 08/22/2022] [Indexed: 01/31/2023]
Abstract
PURPOSE OF THE REVIEW Exposure to essential and non-essential metals is widespread. Metals exposure is linked to epigenetic, particularly DNA methylation, differences. The strength of evidence with respect to the metal exposure type, timing, and level, as well as the DNA methylation association magnitude, and reproducibility are not clear. Focusing on the most recent 3 years, we reviewed the human epidemiologic evidence (n = 26 studies) and the toxicologic animal model evidence (n = 18 studies) for associations between metals exposure and DNA methylation. RECENT FINDINGS In humans, the greatest number of studies focused on lead exposure, followed by studies examining cadmium and arsenic. Approximately half of studies considered metals exposure during the in utero period and measured DNA methylation with the genome-wide Illumina arrays in newborn blood or placenta. Few studies performed formal replication testing or meta-analyses. Toxicology studies of metals and epigenetics had diversity in model systems (mice, rats, drosophila, tilapia, and zebrafish were represented), high heterogeneity of tissues used for DNA methylation measure (liver, testis, ovary, heart, blood, brain, muscle, lung, kidney, whole embryo), and a variety of technologies used for DNA methylation assessment (global, gene specific, genome-wide). The most common metals tested in toxicologic studies were lead and cadmium. Together, the recent studies reviewed provide the strongest evidence for DNA methylation signatures with prenatal metals exposures. There is also mounting epidemiologic evidence supporting lead, arsenic, and cadmium exposures with DNA methylation signatures in adults. The field of metals and DNA methylation is strengthened by the inclusion of both epidemiology and toxicology approaches, and further advancements can be made by coordinating efforts or integrating analyses across studies. Future advances in understanding the molecular basis of sequence specific epigenetic responses to metals exposures, methods for handling exposure mixtures in a genome-wide analytic framework, and pipelines to facilitate collaborative testing will continue to advance the field.
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Affiliation(s)
- Elana R Elkin
- Department of Environmental Health School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Cesar Higgins
- Department of Epidemiology, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA
| | - Max T Aung
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Kelly M Bakulski
- Department of Epidemiology, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA.
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Szukiewicz D, Trojanowski S, Kociszewska A, Szewczyk G. Modulation of the Inflammatory Response in Polycystic Ovary Syndrome (PCOS)-Searching for Epigenetic Factors. Int J Mol Sci 2022; 23:ijms232314663. [PMID: 36498989 PMCID: PMC9736994 DOI: 10.3390/ijms232314663] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age. Despite its incidence, the syndrome is poorly understood and remains underdiagnosed, and female patients are diagnosed with a delay. The heterogenous nature of this complex disorder results from the combined occurrence of genetic, environmental, endocrine, and behavioral factors. Primary clinical manifestations of PCOS are derived from the excess of androgens (anovulation, polycystic ovary morphology, lack of or scanty, irregular menstrual periods, acne and hirsutism), whereas the secondary manifestations include multiple metabolic, cardiovascular, and psychological disorders. Dietary and lifestyle factors play important roles in the development and course of PCOS, which suggests strong epigenetic and environmental influences. Many studies have shown a strong association between PCOS and chronic, low-grade inflammation both in the ovarian tissue and throughout the body. In the vast majority of PCOS patients, elevated values of inflammatory markers or their gene markers have been reported. Development of the vicious cycle of the chronic inflammatory state in PCOS is additionally stimulated by hyperinsulinemia and obesity. Changes in DNA methylation, histone acetylation and noncoding RNA levels are presented in this review in the context of oxidative stress, reactive oxygen species, and inflammatory signaling in PCOS. Epigenetic modulation of androgenic activity in response to inflammatory signaling is also discussed.
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Affiliation(s)
- Dariusz Szukiewicz
- Department of Biophysics, Physiology & Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, 02-004 Warsaw, Poland
- Correspondence:
| | - Seweryn Trojanowski
- Chair and Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, 03-242 Warsaw, Poland
| | - Anna Kociszewska
- Chair and Department of Obstetrics, Gynecology and Gynecological Oncology, Medical University of Warsaw, 03-242 Warsaw, Poland
| | - Grzegorz Szewczyk
- Department of Biophysics, Physiology & Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, 02-004 Warsaw, Poland
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The VRK1 chromatin kinase regulates the acetyltransferase activity of Tip60/KAT5 by sequential phosphorylations in response to DNA damage. BIOCHIMICA ET BIOPHYSICA ACTA (BBA) - GENE REGULATORY MECHANISMS 2022; 1865:194887. [DOI: 10.1016/j.bbagrm.2022.194887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 11/06/2022]
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The effect of acupuncture on oxidative stress: A systematic review and meta-analysis of animal models. PLoS One 2022; 17:e0271098. [PMID: 36084019 PMCID: PMC9462787 DOI: 10.1371/journal.pone.0271098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/23/2022] [Indexed: 12/09/2022] Open
Abstract
Introduction Oxidative stress is involved in the occurrence and development of multiple diseases. Acupuncture shows an excellent clinical efficacy in practical application but its mechanism remains unclear. This systematic review and meta-analysis was aimed at assessing the effect of acupuncture on oxidative stress in animal models. Methods PubMed, Embase, and Web of Science database were retrieved for randomized controlled trials about acupuncture on oxidative stress in animal models from inception to August 2021. Two reviewers independently screened and extracted articles according to inclusion and exclusion criteria. We used the mean difference (MD)/standardized mean difference (SMD) to perform an effect size analysis and selected fixed-effect or random-effect models to pool the data, depending on a 95% confidence interval (CI). Results A total of 12 studies comprising 125 samples were included in the quantitative meta-analysis. Compared with sham acupuncture, acupuncture (manual acupuncture, electropuncture, and laser acupuncture) reduced the level of malondialdehyde (SMD, −3.03; CI, −4.40, −1.65; p < 0.00001) and increased the levels of superoxide dismutase (SMD, 3.39; CI, 1.99, 4.79; p < 0.00001), glutathione peroxidase (SMD, 2.21; CI, 1.10, 3.32; p < 0.00001), and catalase (SMD, 2.80; CI, 0.57, 5.03; p = 0.01). Conclusion This meta-analysis indicated that acupuncture can regulate oxidative stress by lowering the lipid peroxidation and activating the antioxidant enzyme system. In consideration of heterogeneity between studies, future studies should be performed by complying with strict standards and increasing sample size in animal experiments to reduce bias.
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31
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Silva SVE, Gallia MC, da Luz JRD, de Rezende AA, Bongiovanni GA, Araujo-Silva G, Almeida MDG. Antioxidant Effect of Coenzyme Q10 in the Prevention of Oxidative Stress in Arsenic-Treated CHO-K1 Cells and Possible Participation of Zinc as a Pro-Oxidant Agent. Nutrients 2022; 14:nu14163265. [PMID: 36014770 PMCID: PMC9412518 DOI: 10.3390/nu14163265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress is an imbalance between levels of reactive oxygen species (ROS) and antioxidant enzymes. Compounds with antioxidant properties, such as coenzyme Q10 (CoQ10), can reduce cellular imbalance caused by an increase in ROS. CoQ10 participates in modulating redox homeostasis due to its antioxidant activity and its preserving mitochondrial functions. Thus, the present study demonstrated the protective effects of CoQ10 against oxidative stress and cytotoxicity induced by arsenic (As). Antioxidant capacity, formation of hydroperoxides, generation of ROS, and the effect on cellular viability of CoQ10, were investigated to determine the protective effect of CoQ10 against As and pro-oxidant compounds, such as zinc. Cell viability assays showed that CoQ10 is cytoprotective under cellular stress conditions, with potent antioxidant activity, regardless of the concentration tested. Zn, when used at higher concentrations, can increase ROS and show a pro-oxidant effect causing cell damage. The cytotoxic effect observed for As, Zn, or the combination of both could be prevented by CoQ10, without any decrease in its activity at cellular levels when combined with Zn.
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Affiliation(s)
- Saulo Victor e Silva
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
| | - María Celeste Gallia
- Institute of Research and Development in Process Engineering, Biotechnology and Alternative Energies (PROBIEN), National Council for Scientific and Technical Research (CONICET), School of Agricultural Sciences, Neuquén 8300, Argentina
| | - Jefferson Romáryo Duarte da Luz
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
- Organic Chemistry and Biochemistry Laboratory, State University of Amapá (UEAP), Macapá 68900070, Brazil
| | - Adriana Augusto de Rezende
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
| | - Guillermina Azucena Bongiovanni
- Institute of Research and Development in Process Engineering, Biotechnology and Alternative Energies (PROBIEN), National Council for Scientific and Technical Research (CONICET), School of Agricultural Sciences, Neuquén 8300, Argentina
| | - Gabriel Araujo-Silva
- Organic Chemistry and Biochemistry Laboratory, State University of Amapá (UEAP), Macapá 68900070, Brazil
| | - Maria das Graças Almeida
- Post-Graduation Program in Pharmaceutical Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, Federal University of the Rio Grande do Norte (UFRN), Natal 59012570, Brazil
- Post-Graduation Program in Health Sciences, Multidisciplinary Research Laboratory, Department of Clinical and Toxicological Analysis (DACT), Health Sciences Center, UFRN, Natal 59012570, Brazil
- Sciences Center, UFRN, Natal 59012570, Brazil
- Correspondence:
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Rath S, Chakraborty D, Pradhan J, Imran Khan M, Dandapat J. Epigenomic interplay in tumor heterogeneity: Potential of epidrugs as adjunct therapy. Cytokine 2022; 157:155967. [PMID: 35905624 DOI: 10.1016/j.cyto.2022.155967] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 11/28/2022]
Abstract
"Heterogeneity" in tumor mass has immense importance in cancer progression and therapy. The impact of tumor heterogeneity is an emerging field and not yet fully explored. Tumor heterogeneity is mainly considered as intra-tumor heterogeneity and inter-tumor heterogeneity based on their origin. Intra-tumor heterogeneity refers to the discrepancy within the same cancer mass while inter-tumor heterogeneity refers to the discrepancy between different patients having the same tumor type. Both of these heterogeneity types lead to variation in the histopathological as well as clinical properties of the cancer mass which drives disease resistance towards therapeutic approaches. Cancer stem cells (CSCs) act as pinnacle progenitors for heterogeneity development along with various other genetic and epigenetic parameters that are regulating this process. In recent times epigenetic factors are one of the most studied parameters that drive oxidative stress pathways essential during cancer progression. These epigenetic changes are modulated by various epidrugs and have an impact on tumor heterogeneity. The present review summarizes various aspects of epigenetic regulation in the tumor microenvironment, oxidative stress, and progression towards tumor heterogeneity that creates complications during cancer treatment. This review also explores the possible role of epidrugs in regulating tumor heterogeneity and personalized therapy against drug resistance.
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Affiliation(s)
- Suvasmita Rath
- Center of Environment, Climate Change and Public Health, Utkal University, Vani Vihar, Bhubaneswar 751004, Odisha, India
| | - Diptesh Chakraborty
- Department of Biotechnology, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Jyotsnarani Pradhan
- Department of Biotechnology, Utkal University, Bhubaneswar 751004, Odisha, India
| | - Mohammad Imran Khan
- Department of Biochemistry, King Abdulaziz University (KAU), Jeddah 21577, Saudi Arabia; Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Jagneshwar Dandapat
- Department of Biotechnology, Utkal University, Bhubaneswar 751004, Odisha, India; Centre of Excellence in Integrated Omics and Computational Biology, Utkal University, Bhubaneswar 751004, Odisha, India.
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Pogribna M, Word B, Lyn-Cook B, Hammons G. Effect of titanium dioxide nanoparticles on histone modifications and histone modifying enzymes expression in human cell lines. Nanotoxicology 2022; 16:409-424. [DOI: 10.1080/17435390.2022.2085206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Marta Pogribna
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - Beverly Word
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - Beverly Lyn-Cook
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
| | - George Hammons
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, AR, USA
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Ruszkiewicz JA, Bürkle A, Mangerich A. Fueling genome maintenance: On the versatile roles of NAD + in preserving DNA integrity. J Biol Chem 2022; 298:102037. [PMID: 35595095 PMCID: PMC9194868 DOI: 10.1016/j.jbc.2022.102037] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 12/13/2022] Open
Abstract
NAD+ is a versatile biomolecule acting as a master regulator and substrate in various cellular processes, including redox regulation, metabolism, and various signaling pathways. In this article, we concisely and critically review the role of NAD+ in mechanisms promoting genome maintenance. Numerous NAD+-dependent reactions are involved in the preservation of genome stability, the cellular DNA damage response, and other pathways regulating nucleic acid metabolism, such as gene expression and cell proliferation pathways. Of note, NAD+ serves as a substrate to ADP-ribosyltransferases, sirtuins, and potentially also eukaryotic DNA ligases, all of which regulate various aspects of DNA integrity, damage repair, and gene expression. Finally, we critically analyze recent developments in the field as well as discuss challenges associated with therapeutic actions intended to raise NAD+ levels.
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Affiliation(s)
- Joanna A Ruszkiewicz
- Molecular Toxicology Group, Department of Biology, University of Konstanz, Konstanz, Germany.
| | - Alexander Bürkle
- Molecular Toxicology Group, Department of Biology, University of Konstanz, Konstanz, Germany.
| | - Aswin Mangerich
- Molecular Toxicology Group, Department of Biology, University of Konstanz, Konstanz, Germany.
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Downregulation of glob1 mitigates human tau mediated neurotoxicity by restricting heterochromatin loss and elevating the autophagic response in drosophila. Mol Biol Rep 2022; 49:6581-6590. [PMID: 35633418 DOI: 10.1007/s11033-022-07498-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/21/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Human neuronal tauopathies are typically characterized by the accumulation of hyperphosphorylated tau in the forms of paired helical filaments and/or neurofibrillary tangles in the brain neurons. Tau-mediated heterochromatin loss and subsequent global transcriptional upsurge have been demonstrated as one of the key factors that promotes tau toxicity. We have reported earlier that expression of human tau-transgene in Drosophila induces the expression of glob1, and its restored level restricts tau etiology by regulating tau hyperphosphorylation and ROS generation via GSK-3β/p-Akt and Nrf2-keap1-ARE pathways, respectively. In view of this noted capability of glob1 in regulation of oxidative stress, and involvement of ROS in chromatin remodeling; we investigate if downregulation of glob1 restores tau-mediated heterochromatin loss in order to alleviate neurotoxicity. METHODS AND RESULTS The tauV337M transgene was expressed in Drosophila eye by utilizing GAL4/UAS system. Expression of glob1 was depleted in tauV337M expressing tissues by co-expressing an UAS-glob1RNAi transgene by GMR-Gal4 driver. Immunostaining and wstern blot analysis suggested that tissue-specific downregulation of glob1 restores the cellular level of CBP and minimizes tau-mediated heterochromatin loss. It also assists in mounting an improved protective autophagic response to alleviate the human tau-induced neurotoxicity in Drosophila tauopathy models. CONCLUSIONS Our study unfolds a novel aspect of the multitasking globin protein in restricting the pathogenesis of neuronal tauopathies. Interestingly, due to notable similarities between Drosophila glob1 and human globin gene(s), our findings may be helpful in developing novel therapeutic approaches against tauopathies.
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Dujon AM, Boutry J, Tissot S, Lemaître JF, Boddy AM, Gérard AL, Alvergne A, Arnal A, Vincze O, Nicolas D, Giraudeau M, Telonis-Scott M, Schultz A, Pujol P, Biro PA, Beckmann C, Hamede R, Roche B, Ujvari B, Thomas F. Cancer Susceptibility as a Cost of Reproduction and Contributor to Life History Evolution. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.861103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Reproduction is one of the most energetically demanding life-history stages. As a result, breeding individuals often experience trade-offs, where energy is diverted away from maintenance (cell repair, immune function) toward reproduction. While it is increasingly acknowledged that oncogenic processes are omnipresent, evolving and opportunistic entities in the bodies of metazoans, the associations among reproductive activities, energy expenditure, and the dynamics of malignant cells have rarely been studied. Here, we review the diverse ways in which age-specific reproductive performance (e.g., reproductive aging patterns) and cancer risks throughout the life course may be linked via trade-offs or other mechanisms, as well as discuss situations where trade-offs may not exist. We argue that the interactions between host–oncogenic processes should play a significant role in life-history theory, and suggest some avenues for future research.
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Study on the Enhancement of Antioxidant Properties of Rice Bran Using Mixed-Bacteria Solid-State Fermentation. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8050212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Rice bran is usually mixed into animal feeds or discarded directly because of its harsh taste and undesirable flavor. Its bioavailability and exploitation are limited. In order to enhance the antioxidant properties of rice bran, the solid-state fermentation of rice bran with mixed bacteria was adopted in addition to the optimization of the fermentation technology. The bioactive constituents of water-soluble extracts and the in vivo antioxidant activity were compared before and after fermentation. The results revealed that the DPPH free radical scavenging rate of the water-soluble rice bran extracts under optimized fermentation technology conditions reached 86.38%, which was a 54.06% increase compared to that of raw materials. The mixed-bacteria solid-state fermentation increased the levels of bioactive constituents, including the polyphenols, flavonoid, protein, uronic acid, mannose, catechinic acid, caffeic acid, and ferulic acid contents. In a zebrafish model, the water-soluble fermented rice bran extracts (FRBE) displayed superior protective effects against 2,2′-azobis (2-methylpropionamidine) dihydrochloride (AAPH)-induced reactive oxygen species (ROS) production, lipid peroxidation, and cell death, and FRBE significantly improved SOD and CAT activity against the induced AAPH. Taken together, mixed-bacteria solid-state fermentation could change the bioactive constituents and enhance the antioxidant activity of water-soluble extracts from rice bran.
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Dobrowolski SF, Phua YL, Sudano C, Spridik K, Zinn PO, Wang Y, Bharathi S, Vockley J, Goetzman E. Comparative metabolomics in the Pah enu2 classical PKU mouse identifies cerebral energy pathway disruption and oxidative stress. Mol Genet Metab 2022; 136:38-45. [PMID: 35367142 PMCID: PMC9759961 DOI: 10.1016/j.ymgme.2022.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 01/06/2023]
Abstract
Classical phenylketonuria (PKU, OMIM 261600) owes to hepatic deficiency of phenylalanine hydroxylase (PAH) that enzymatically converts phenylalanine (Phe) to tyrosine (Tyr). PKU neurologic phenotypes include impaired brain development, decreased myelination, early onset mental retardation, seizures, and late-onset features (neuropsychiatric, Parkinsonism). Phe over-representation is systemic; however, tissue response to hyperphenylalaninemia is not consistent. To characterize hyperphenylalaninemia tissue response, metabolomics was applied to Pahenu2 classical PKU mouse blood, liver, and brain. In blood and liver over-represented analytes were principally Phe, Phe catabolites, and Phe-related analytes (Phe-conjugates, Phe-containing dipeptides). In addition to Phe and Phe-related analytes, the metabolomic profile of Pahenu2 brain tissue evidenced oxidative stress responses and energy dysregulation. Glutathione and homocarnosine anti-oxidative responses are apparent Pahenu2 brain. Oxidative stress in Pahenu2 brain was further evidenced by increased reactive oxygen species. Pahenu2 brain presents an increased NADH/NAD ratio suggesting respiratory chain complex 1 dysfunction. Respirometry in Pahenu2 brain mitochondria functionally confirmed reduced respiratory chain activity with an attenuated response to pyruvate substrate. Glycolysis pathway analytes are over-represented in Pahenu2 brain tissue. PKU pathologies owe to liver metabolic deficiency; yet, Pahenu2 liver tissue shows neither energy disruption nor anti-oxidative response. Unique aspects of metabolomic homeostasis in PKU brain tissue along with increased reactive oxygen species and respiratory chain deficit provide insight to neurologic disease mechanisms. While some elements of assumed, long standing PKU neuropathology are enforced by metabolomic data (e.g. reduced tryptophan and serotonin representation), energy dysregulation and tissue oxidative stress expand mechanisms underlying neuropathology.
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Affiliation(s)
- Steven F Dobrowolski
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America.
| | - Yu Leng Phua
- Division of Medical Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Cayla Sudano
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Kayla Spridik
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Pascal O Zinn
- Department of Neurological Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Yudong Wang
- Division of Medical Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Sivakama Bharathi
- Division of Medical Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Jerry Vockley
- Division of Medical Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
| | - Eric Goetzman
- Division of Medical Genetics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15224, United States of America
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Jurdak R, Rodrigues GDAG, Chaumont N, Schivre G, Bourbousse C, Barneche F, Bou Dagher Kharrat M, Bailly C. Intracellular reactive oxygen species trafficking participates in seed dormancy alleviation in Arabidopsis seeds. THE NEW PHYTOLOGIST 2022; 234:850-866. [PMID: 35175638 DOI: 10.1111/nph.18038] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Reactive oxygen species (ROS) release seed dormancy through an unknown mechanism. We used different seed dormancy-breaking treatments to decipher the dynamics and localization of ROS production during seed germination. We studied the involvement of ROS in the breaking of Arabidopsis seed dormancy by cold stratification, gibberellic acid (GA3 ) and light. We characterized the effects of these treatments on abscisic acid and gibberellins biosynthesis and signalling pathways. ROS, mitochondrial redox status and peroxisomes were visualized and/or quantified during seed imbibition. Finally, we performed a cytogenetic characterization of the nuclei from the embryonic axes during seed germination. We show that mitochondria participate in the early ROS production during seed imbibition and that a possible involvement of peroxisomes in later stages should still be analysed. At the time of radicle protrusion, ROS accumulated within the nucleus, which correlated with nuclear expansion and chromatin decompaction. Taken together, our results provide evidence of the role of ROS trafficking between organelles and of the nuclear redox status in the regulation of seed germination by dormancy.
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Affiliation(s)
- Rana Jurdak
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
- Biodiversity and Functional Genomics Laboratory, Université Saint-Joseph de Beyrouth, Beyrouth, 1107 2050, Lebanon
| | - Guilherme de Almeida Garcia Rodrigues
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
- Plant Physiology Lab, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Nicole Chaumont
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
| | - Geoffrey Schivre
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
- Université Paris-Saclay, Orsay, F-91405, France
| | - Clara Bourbousse
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
| | - Fredy Barneche
- Institut de Biologie de l'Ecole Normale Supérieure (IBENS), Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, F-75005, France
| | - Magda Bou Dagher Kharrat
- Biodiversity and Functional Genomics Laboratory, Université Saint-Joseph de Beyrouth, Beyrouth, 1107 2050, Lebanon
| | - Christophe Bailly
- IBPS, CNRS, UMR 7622 Biologie du Développement, Sorbonne Université, Paris, F-75005, France
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Bowdridge EC, DeVallance E, Garner KL, Griffith JA, Schafner K, Seaman M, Engels KJ, Wix K, Batchelor TP, Goldsmith WT, Hussain S, Nurkiewicz TR. Nano-titanium dioxide inhalation exposure during gestation drives redox dysregulation and vascular dysfunction across generations. Part Fibre Toxicol 2022; 19:18. [PMID: 35260159 PMCID: PMC8905816 DOI: 10.1186/s12989-022-00457-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 02/24/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Pregnancy is associated with many rapid biological adaptations that support healthy development of the growing fetus. One of which is critical to fetal health and development is the coordination between maternal liver derived substrates and vascular delivery. This crucial adaptation can be potentially derailed by inhalation of toxicants. Engineered nanomaterials (ENM) are commonly used in household and industrial products as well as in medicinal applications. As such, the potential risk of exposure remains a concern, especially during pregnancy. We have previously reported that ENM inhalation leads to upregulation in the production of oxidative species. Therefore, we aimed to determine if F0 dam maternal nano-TiO2 inhalation exposure (exclusively) resulted in altered H2O2 production capacity and changes in downstream redox pathways in the F0 dams and subsequent F1 pups. Additionally, we investigated whether this persisted into adulthood within the F1 generation and how this impacted F1 gestational outcomes and F2 fetal health and development. We hypothesized that maternal nano-TiO2 inhalation exposure during gestation in the F0 dams would result in upregulated H2O2 production in the F0 dams as well as her F1 offspring. Additionally, this toxicological insult would result in gestational vascular dysfunction in the F1 dams yielding smaller F2 generation pups. RESULTS Our results indicate upregulation of hepatic H2O2 production capacity in F0 dams, F1 offspring at 8 weeks and F1 females at gestational day 20. H2O2 production capacity was accompanied by a twofold increase in phosphorylation of the redox sensitive transcription factor NF-κB. In cell culture, naïve hepatocytes exposed to F1-nano-TiO2 plasma increased H2O2 production. Overnight exposure of these hepatocytes to F1 plasma increased H2O2 production capacity in a partially NF-κB dependent manner. Pregnant F1- nano-TiO2 females exhibited estrogen disruption (12.12 ± 3.1 pg/ml vs. 29.81 ± 8.8 pg/ml sham-control) and vascular dysfunction similar to their directly exposed mothers. F1-nano-TiO2 uterine artery H2O2 production capacity was also elevated twofold. Dysfunctional gestational outcomes in the F1-nano-TiO2 dams resulted in smaller F1 (10.22 ± 0.6 pups vs. sham-controls 12.71 ± 0.96 pups) and F2 pups (4.93 ± 0.47 g vs. 5.78 ± 0.09 g sham-control pups), and fewer F1 male pups (4.38 ± 0.3 pups vs. 6.83 ± 0.84 sham-control pups). CONCLUSION In conclusion, this manuscript provides critical evidence of redox dysregulation across generations following maternal ENM inhalation. Furthermore, dysfunctional gestational outcomes are observed in the F1-nano-TiO2 generation and impact the development of F2 offspring. In total, this data provides strong initial evidence that maternal ENM exposure has robust biological impacts that persists in at least two generations.
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Affiliation(s)
- Elizabeth C. Bowdridge
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Evan DeVallance
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Krista L. Garner
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Julie A. Griffith
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Kallie Schafner
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Madison Seaman
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA
| | - Kevin J. Engels
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA
| | - Kimberley Wix
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA
| | - Thomas P. Batchelor
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - William T. Goldsmith
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Salik Hussain
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
| | - Timothy R. Nurkiewicz
- grid.268154.c0000 0001 2156 6140Department of Physiology and Pharmacology, 64 Medical Center Drive, Robert C. Byrd Health Sciences Center, West Virginia University School of Medicine, West Virginia University, Morgantown, WV 26505-9229 USA ,grid.268154.c0000 0001 2156 6140Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV USA
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Liu S, Qiu Y, Xiang R, Huang P. Characterization of H2O2-Induced Alterations in Global Transcription of mRNA and lncRNA. Antioxidants (Basel) 2022; 11:antiox11030495. [PMID: 35326145 PMCID: PMC8944526 DOI: 10.3390/antiox11030495] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/08/2022] [Accepted: 02/18/2022] [Indexed: 12/10/2022] Open
Abstract
Hydrogen peroxide (H2O2) is an important reactive oxygen species that plays a major role in redox signaling. Although H2O2 is known to regulate gene expression and affect multiple cellular processes, the characteristics and mechanisms of such transcriptional regulation remain to be defined. In this study, we utilized transcriptome sequencing to determine the global changes of mRNA and lncRNA transcripts induced by H2O2 in human pancreatic normal epithelial (HPNE) and pancreatic cancer (PANC-1) cells. Promoter analysis using PROMO and TRRUST revealed that mRNAs and lncRNAs largely shared the same sets of transcription factors in response to ROS stress. Interestingly, promoters of the upregulated genes were similar to those of the downregulated transcripts, suggesting that the H2O2-responding promoters are conserved but they alone do not determine the levels of transcriptional outputs. We also found that H2O2 induced significant changes in molecules involved in the pathways of RNA metabolism, processing, and transport. Detailed analyses further revealed a significant difference between pancreatic cancer and noncancer cells in their response to H2O2 stress, especially in the transcription of genes involved in cell-cycle regulation and DNA repair. Our study provides new insights into RNA transcriptional regulation upon ROS stress in cancer and normal cells.
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Affiliation(s)
- Shihua Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (S.L.); (Y.Q.); (R.X.)
| | - Ya Qiu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (S.L.); (Y.Q.); (R.X.)
| | - Rong Xiang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (S.L.); (Y.Q.); (R.X.)
| | - Peng Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China; (S.L.); (Y.Q.); (R.X.)
- Center for Cancer Metabolism and Intervention Research, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
- Correspondence:
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Qureshi MK, Gawroński P, Munir S, Jindal S, Kerchev P. Hydrogen peroxide-induced stress acclimation in plants. Cell Mol Life Sci 2022; 79:129. [PMID: 35141765 PMCID: PMC11073338 DOI: 10.1007/s00018-022-04156-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023]
Abstract
Among all reactive oxygen species (ROS), hydrogen peroxide (H2O2) takes a central role in regulating plant development and responses to the environment. The diverse role of H2O2 is achieved through its compartmentalized synthesis, temporal control exerted by the antioxidant machinery, and ability to oxidize specific residues of target proteins. Here, we examine the role of H2O2 in stress acclimation beyond the well-studied transcriptional reprogramming, modulation of plant hormonal networks and long-distance signalling waves by highlighting its global impact on the transcriptional regulation and translational machinery.
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Affiliation(s)
- Muhammad Kamran Qureshi
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Piotr Gawroński
- Department of Plant Genetics, Breeding and Biotechnology, Institute of Biology, Warsaw, University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland
| | - Sana Munir
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Bosan road, Multan, 60800, Pakistan
| | - Sunita Jindal
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic
| | - Pavel Kerchev
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 3, 613 00, Brno, Czech Republic.
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43
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Martinvalet D, Walch M. Editorial: The Role of Reactive Oxygen Species in Protective Immunity. Front Immunol 2022; 12:832946. [PMID: 35145515 PMCID: PMC8821872 DOI: 10.3389/fimmu.2021.832946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 12/21/2021] [Indexed: 01/17/2023] Open
Affiliation(s)
- Denis Martinvalet
- Department of Biomedical Sciences, University of Padua, Padova, Italy
- Veneto Institute of Molecular Medicine, Padova, Italy
- *Correspondence: Denis Martinvalet, ; Michael Walch,
| | - Michael Walch
- Faculty of Science and Medicine, Department of Oncology, Microbiology and Immunology, Anatomy Unit, University of Fribourg, Fribourg, Switzerland
- *Correspondence: Denis Martinvalet, ; Michael Walch,
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44
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Roles of DNA polymerase ζ in the radiotherapy sensitivity and oxidative stress of lung cancer cells. Cancer Chemother Pharmacol 2022; 89:313-321. [DOI: 10.1007/s00280-021-04360-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/31/2021] [Indexed: 11/26/2022]
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Vafina G. Investigation of the antioxidant activity of the peroxidase system of cell nuclei during germination of wheat embryos with different types of resistance to temperature stress. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224302016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The yield of agricultural crops directly depends on their ability to adapt to a constantly changing environment, the unfavorable climatic conditions of which cause oxidative stress, accompanied by the generation of reactive oxygen species in plant cells, which can cause damage to heteropolymer cell structures, thereby leading to suppression of plant growth and a decrease in productivity grains. It has been shown that the profile of the antioxidant activity of the peroxidase system in histone and non-histone blocks of structures (nucleoplasm, chromatin) of cell nuclei during germination is more pronounced in the cold-resistant variety Mironovskaya 808 (winter) compared to Mironovskaya yarovaya (spring), which correlates with the intensity of growth processes and can be associated with participation in the realization of proliferation and differentiation programs. A direct relationship between the scavenging of ROS and plant resistance to temperature stress, which is often associated with the increased activity of antioxidant enzymes that impart stress resistance to both high and low temperature stress, apparently also exists at the level of the plant cell nucleus.
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Vafina G. Investigation of the antioxidant activity of the peroxidase system of cell nuclei during germination of wheat embryos with different types of resistance to temperature stress. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224301011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The yield of agricultural crops directly depends on their ability to adapt to a constantly changing environment, the unfavorable climatic conditions of which cause oxidative stress, accompanied by the generation of reactive oxygen species in plant cells, which can cause damage to heteropolymer cell structures, thereby leading to suppression of plant growth and a decrease in productivity grains. It has been shown that the profile of the antioxidant activity of the peroxidase system in histone and non-histone blocks of structures (nucleoplasm, chromatin) of cell nuclei during germination is more pronounced in the cold-resistant variety Mironovskaya 808 (winter) compared to Mironovskaya yarovaya (spring), which correlates with the intensity of growth processes and can be associated with participation in the realization of proliferation and differentiation programs. A direct relationship between the scavenging of ROS and plant resistance to temperature stress, which is often associated with the increased activity of antioxidant enzymes that impart stress resistance to both high and low temperature stress, apparently also exists at the level of the plant cell nucleus.
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47
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Rizavi HS, Chase KA, Liu C, Gavin H, Rosen C, Xia C, Guidotti A, Sharma RP. Differential H3K9me2 heterochromatin levels and concordant mRNA expression in postmortem brain tissue of individuals with schizophrenia, bipolar, and controls. Front Psychiatry 2022; 13:1006109. [PMID: 36386965 PMCID: PMC9644155 DOI: 10.3389/fpsyt.2022.1006109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
The existence of repressive and durable chromatin assemblies along gene promoters or networks, especially in the brain, is of theoretical and therapeutic relevance in a subset of individuals diagnosed with schizophrenia who experience a chronic, persistent, and treatment-resistant trajectory. We used chromatin immunoprecipitation followed by deep sequencing (ChIP-Seq) to generate an epigenomic map that includes differential sites occupied by di-methylated lysine 9 of histone 3 (H3K9me2), a repressive modification that is yet unexplored in human postmortem brain tissue. We have discovered over 150 significantly differential promoter sites in the postmortem prefrontal cortex tissue of individuals diagnosed with schizophrenia (n = 15) when compared to controls (n = 15). Potentially dysregulated gene categories include postsynaptic proteins, processing enzymes (for proproteins, lipids, and oxidative stress), cadherin family genes, the complement system, and peptide hormones. Ten genes with significantly increased or decreased H3K9me2 promoter occupation were selected through statistical analysis, function, or previous GWAS association, and Quantitative RT-PCR (qRT-PCR) was performed on an extended sample of postmortem brain tissue, adding an additional 17 controls, 7 individuals with schizophrenia, and 19 individuals with bipolar samples (n = 32 control, 22 schizophrenia, 19 bipolar). This approach revealed that mRNA expression levels correlated with chromatin modification levels in eight of 10 selected genes, and mRNA expression in the total sample could be predicted by the occupancy of H3K9me2. Utilization of this method and replication in a larger sample open a pathway to durable and restrictive epigenomic assemblies whose accumulation across the lifespan of individuals diagnosed with schizophrenia may explain treatment resistance, and advance therapeutic options.
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Affiliation(s)
- Hooriyah S Rizavi
- Department of Psychiatry, The Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, United States.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - Kayla A Chase
- Department of Biochemistry and Molecular Biology, University of Illinois at Chicago, Chicago, IL, United States
| | - Chunyu Liu
- Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States.,Department of Psychiatry, SUNY Upstate Medical University, Syracuse, NY, United States
| | - Hannah Gavin
- Department of Psychiatry, The Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, United States
| | - Cherise Rosen
- Department of Psychiatry, The Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, United States
| | - Cuihua Xia
- School of Life Sciences, Central South University, Changsha, China
| | - Alessandro Guidotti
- Department of Psychiatry, The Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, United States
| | - Rajiv P Sharma
- Department of Psychiatry, The Psychiatric Institute, University of Illinois at Chicago, Chicago, IL, United States.,Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
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48
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Sharma K, Sharma P, Dhiman SK, Chadha P, Saini HS. Biochemical, genotoxic, histological and ultrastructural effects on liver and gills of fresh water fish Channa punctatus exposed to textile industry intermediate 2 ABS. CHEMOSPHERE 2022; 287:132103. [PMID: 34488055 DOI: 10.1016/j.chemosphere.2021.132103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/12/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The study was planned to assess the acute toxicity of textile industry intermediate, 2 amino benzene sulfonate (2 ABS) through biochemical, genotoxic, histopathological and ultrastructural (SEM) analysis in liver and gills of fresh water fish Channa punctatus. The fish were subjected to two sublethal concentrations (2.83 mg/30 g b. w. and 5.66 mg/30 g b. w.) for 96 h. A significant (p ≤ 0.05) increment in the enzymatic activity of catalase (CAT), superoxide dismutase (SOD) and glutathione reductase (GR) was observed followed by decline on CAT-SOD after 96 h of exposure in both the tissues, whereas increment in malondialdehyde (MDA) levels were observed throughout the exposure period for both the concentrations. Comet assay also showed elevated tail length and % tail DNA throughout the exposure period, marking maximum damage after 96 h for both the tissues. Light microscopy divulged several anomalies including: infiltration of lymphocytes, sinusoidal dilations, necrosis, vacuolation in liver and secondary lamellae fusion, telangiectasia and epithelial uplifting in gills. The highest degree of tissue change (DTC) in liver (50.33 ± 0.88) and gill (42.33 ± 2.18) was recorded with the highest concentration after 96 h of exposure. Scanning electron microscopy (SEM) also reaffirmed several alterations in liver and gills of fish. The findings of the present study inflict changes in liver and gills, marking the interference of 2 ABS with the normal functioning by suppressing the enzymatic activity, accelerating the lipid peroxidation, enhancing DNA damage and by disrupting normal architecture of liver and gills, making it toxic towards the fish even at sub-lethal concentrations.
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Affiliation(s)
- Khushboo Sharma
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Prince Sharma
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Shakti Kumar Dhiman
- Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180016, India.
| | - Pooja Chadha
- Cytogenetics Lab, Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, India.
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Elizalde-Velázquez GA, Gómez-Oliván LM, Islas-Flores H, Hernández-Navarro MD, García-Medina S, Galar-Martínez M. Oxidative stress as a potential mechanism by which guanylurea disrupts the embryogenesis of Danio rerio. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 799:149432. [PMID: 34365262 DOI: 10.1016/j.scitotenv.2021.149432] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Metformin is one the most prescribed drug to treat type 2 diabetes. In wastewater treatment plants, this drug is bacterially transformed to guanylurea, which occurs at higher concentrations in the aquatic environments than its parent compound. Since there is a huge knowledge gap about the toxicity of this metabolite on aquatic organisms, we aimed to investigate the impact of guanylurea on the embryonic development and oxidative stress biomarkers of zebrafish (Danio rerio). For this effect, zebrafish embryos (4 h post fertilization) were exposed to 25, 50, 100, 200, 250, 25,000, 50,000, 75,000 μg/L guanylurea until 96 h post fertilization. Guanylurea led to a significant delay in the hatching process in all exposure groups. Furthermore, this transformation product affected the embryonic development of fish, inducing severe body alterations and consequently leading to their death. The most pronounced malformations were malformation of tail, scoliosis, pericardial edema, yolk deformation and craniofacial malformation. Concerning oxidative stress response, we demonstrated that guanylurea induced the antioxidant activity of superoxide dismutase, catalase, and glutathione peroxidase in zebrafish embryos. In addition, the levels of lipid peroxidation, protein carbonyl and hydroperoxide content were also increased in the embryos exposed to this transformation product. However, the integrated biomarker response (IBR) analysis carried out in this study demonstrated that oxidative damage biomarkers got more influence over the embryos than antioxidant enzymes. Thus, we can conclude that guanylurea induces oxidative stress in zebrafish embryos, and that this transformation product impair the normal development of this freshwater organism.
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Affiliation(s)
- Gustavo Axel Elizalde-Velázquez
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan, Colonia Residencial Colón, CP 50120 Toluca, Estado de México, Mexico
| | - Leobardo Manuel Gómez-Oliván
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan, Colonia Residencial Colón, CP 50120 Toluca, Estado de México, Mexico.
| | - Hariz Islas-Flores
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan, Colonia Residencial Colón, CP 50120 Toluca, Estado de México, Mexico
| | - María Dolores Hernández-Navarro
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan, Colonia Residencial Colón, CP 50120 Toluca, Estado de México, Mexico
| | - Sandra García-Medina
- Laboratorio de Toxicología Acuática, Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu s/n y cerrada Manuel Stampa, Col. Industrial Vallejo, Ciudad de México CP 07700, Mexico
| | - Marcela Galar-Martínez
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan, Colonia Residencial Colón, CP 50120 Toluca, Estado de México, Mexico
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50
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Su H, Huang J, Weng S, Zhang B, Zhang T, Xu Y. Glutathione synthesis primes monocytes metabolic and epigenetic pathway for β-glucan-trained immunity. Redox Biol 2021; 48:102206. [PMID: 34894475 PMCID: PMC8669111 DOI: 10.1016/j.redox.2021.102206] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/23/2021] [Accepted: 12/06/2021] [Indexed: 11/24/2022] Open
Abstract
Trained monocytes and macrophages produce reactive oxygen species (ROS), which trigger antioxidative glutathione (GSH) response to buffer the rising ROS. However, whether and how the trained immunity is shaped by GSH synthesis remains unknown. Here, we report that β-glucan-trained macrophages from mice harboring a myeloid-specific deletion of the catalytic subunit of glutamate-cysteine ligase (Gclc) showed impaired GSH synthesis and decreased proinflammatory cytokine production in response to lipopolysaccharide challenge. Gclc deficiency compromised the activation of mammalian target of rapamycin-1 (mTOR) and expression of c-Myc transcription factors, abrogating the energy utilization and the metabolic reprogramming that allows β-glucan-trained macrophages to switch to glycolysis and glutaminolysis. Furthermore, Gclc deletion repressed effective H3K27me3 demethylation in the promoters of immunometabolic genes, such as Gls, Hk2, and Glut1, in β-glucan-trained macrophages by promoting the methyltransferase enhancer of zeste homolog 2 (EZH2). In vivo, myeloid-specific ablation of Gclc decreased the secretion of proinflammatory cytokines upon rechallenge with Candida albicans and these animals were less protected against the infection, compared with control littermates. Moreover, pharmacological inhibition of EZH2 enhanced the trained immunity response against Candida infection in Gclc-deficient mouse and human peripheral blood mononuclear cells treated with GCLC inhibitor buthionine sulfoximine (BSO). Thus, antioxidative GSH synthesis supports an environment conducive to β-glucan-induced metabolic and epigenetic reprogramming in trained immunity, allowing exploration of its functional consequences in autoimmune or inflammatory disease.
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Affiliation(s)
- Haibo Su
- GMU-GIBH Joint School of Life Science, Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, 510000, China.
| | - Jiaxin Huang
- GMU-GIBH Joint School of Life Science, Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, 510000, China
| | - Shufeng Weng
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, No. 220 Handan Road, Shanghai, 200433, China
| | - Baoying Zhang
- GMU-GIBH Joint School of Life Science, Guangzhou Medical University, No. 195 Dongfengxi Road, Guangzhou, 510000, China
| | - Tianran Zhang
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, No. 220 Handan Road, Shanghai, 200433, China
| | - Ying Xu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, No. 220 Handan Road, Shanghai, 200433, China.
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