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Miao L, Wang H, Li Y, Huang J, Wang C, Teng H, Xu L, Yang X, Tian Y, Yang G, Li J, Zeng X. Mechanisms and treatments of methamphetamine and HIV-1 co-induced neurotoxicity: a systematic review. Front Immunol 2024; 15:1423263. [PMID: 39224601 PMCID: PMC11366655 DOI: 10.3389/fimmu.2024.1423263] [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: 04/25/2024] [Accepted: 08/02/2024] [Indexed: 09/04/2024] Open
Abstract
Combination antiretroviral therapy (cART) has dramatically reduced mortality in people with human immunodeficiency virus (HIV), but it does not completely eradicate the virus from the brain. Patients with long-term HIV-1 infection often show neurocognitive impairment, which severely affects the quality of life of those infected. Methamphetamine (METH) users are at a significantly higher risk of contracting HIV-1 through behaviors such as engaging in high-risk sex or sharing needles, which can lead to transmission of the virus. In addition, HIV-1-infected individuals who abuse METH exhibit higher viral loads and more severe cognitive dysfunction, suggesting that METH exacerbates the neurotoxicity associated with HIV-1. Therefore, this review focuses on various mechanisms underlying METH and HIV-1 infection co-induced neurotoxicity and existing interventions targeting the sigma 1 receptor, dopamine transporter protein, and other relevant targets are explored. The findings of this review are envisaged to systematically establish a theoretical framework for METH abuse and HIV-1 infection co-induced neurotoxicity, and to suggest novel clinical treatment targets.
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Affiliation(s)
- Lin Miao
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Haowei Wang
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Yi Li
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Jian Huang
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Chan Wang
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Hanxin Teng
- Department of Pathogen Biology and Immunology, School of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Lisha Xu
- Department of Pathogen Biology and Immunology, School of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Xue Yang
- Department of Pathogen Biology and Immunology, School of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Yunqing Tian
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Genmeng Yang
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
| | - Juan Li
- Department of Pathogen Biology and Immunology, School of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Xiaofeng Zeng
- NHC Key Laboratory of Drug Addiction Medicine, School of Forensic Medicine, Kunming Medical University, Kunming, China
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2
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Harshithkumar R, Shah P, Jadaun P, Mukherjee A. ROS Chronicles in HIV Infection: Genesis of Oxidative Stress, Associated Pathologies, and Therapeutic Strategies. Curr Issues Mol Biol 2024; 46:8852-8873. [PMID: 39194740 DOI: 10.3390/cimb46080523] [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: 07/09/2024] [Revised: 08/04/2024] [Accepted: 08/13/2024] [Indexed: 08/29/2024] Open
Abstract
Reactive oxygen species (ROS) are widely regarded as signaling molecules and play essential roles in various cellular processes, but when present in excess, they can lead to oxidative stress (OS). Growing evidence suggests that the OS plays a critical role in the pathogenesis of HIV infection and is associated with several comorbidities in HIV-infected individuals. ROS, generated both naturally during mitochondrial oxidative metabolism and as a response to various cellular processes, can trigger host antiviral responses but can also promote viral replication. While the multifaceted roles of ROS in HIV pathophysiology clearly need more investigation, this review paper unravels the mechanisms of OS generation in the context of HIV infections, offering insights into HIV viral protein-mediated and antiretroviral therapy-generated OS. Though the viral protein Tat is significantly attributed to the endogenous cellular increase in ROS post HIV infection, this paper sums up the contribution of other viral proteins in HIV-mediated elicitation of ROS. Given the investigations recognizing the significant role of ROS in the onset and progression of diverse pathologies, the paper also explores the critical function of ROS in the mediation of an of array of pathologies associated with HIV infection and retroviral therapy. HIV patients are observed with disruption to the antioxidant defense system, the antioxidant therapy is gaining focus as a potential therapeutic intervention and is well discussed. While ROS play a significant role in the HIV scenario, further exploratory studies are imperative to identifying alternative therapeutic strategies that could mitigate the toxicities and pathologies associated with ART-induced OS.
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Affiliation(s)
- R Harshithkumar
- Division of Virology, ICMR-National Institute of Translational Virology and AIDS Research, Pune 411026, India
| | - Prachibahen Shah
- Division of Virology, ICMR-National Institute of Translational Virology and AIDS Research, Pune 411026, India
| | - Pratiksha Jadaun
- Division of Virology, ICMR-National Institute of Translational Virology and AIDS Research, Pune 411026, India
| | - Anupam Mukherjee
- Division of Virology, ICMR-National Institute of Translational Virology and AIDS Research, Pune 411026, India
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3
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Wongchitrat P, Chanmee T, Govitrapong P. Molecular Mechanisms Associated with Neurodegeneration of Neurotropic Viral Infection. Mol Neurobiol 2024; 61:2881-2903. [PMID: 37946006 PMCID: PMC11043213 DOI: 10.1007/s12035-023-03761-6] [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: 08/25/2022] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Viral infections of the central nervous system (CNS) cause variable outcomes from acute to severe neurological sequelae with increased morbidity and mortality. Viral neuroinvasion directly or indirectly induces encephalitis via dysregulation of the immune response and contributes to the alteration of neuronal function and the degeneration of neuronal cells. This review provides an overview of the cellular and molecular mechanisms of virus-induced neurodegeneration. Neurotropic viral infections influence many aspects of neuronal dysfunction, including promoting chronic inflammation, inducing cellular oxidative stress, impairing mitophagy, encountering mitochondrial dynamics, enhancing metabolic rewiring, altering neurotransmitter systems, and inducing misfolded and aggregated pathological proteins associated with neurodegenerative diseases. These pathogenetic mechanisms create a multidimensional injury of the brain that leads to specific neuronal and brain dysfunction. The understanding of the molecular mechanisms underlying the neurophathogenesis associated with neurodegeneration of viral infection may emphasize the strategies for prevention, protection, and treatment of virus infection of the CNS.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
| | - Theerawut Chanmee
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
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4
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Donadoni M, Cakir S, Bellizzi A, Swingler M, Sariyer IK. Modeling HIV-1 infection and NeuroHIV in hiPSCs-derived cerebral organoid cultures. J Neurovirol 2024:10.1007/s13365-024-01204-z. [PMID: 38600307 DOI: 10.1007/s13365-024-01204-z] [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: 12/18/2023] [Revised: 03/13/2024] [Accepted: 03/22/2024] [Indexed: 04/12/2024]
Abstract
The human immunodeficiency virus (HIV) epidemic is an ongoing global health problem affecting 38 million people worldwide with nearly 1.6 million new infections every year. Despite the advent of combined antiretroviral therapy (cART), a large percentage of people with HIV (PWH) still develop neurological deficits, grouped into the term of HIV-associated neurocognitive disorders (HAND). Investigating the neuropathology of HIV is important for understanding mechanisms associated with cognitive impairment seen in PWH. The major obstacle for studying neuroHIV is the lack of suitable in vitro human culture models that could shed light into the HIV-CNS interactions. Recent advances in induced pluripotent stem cell (iPSC) culture and 3D brain organoid systems have allowed the generation of 2D and 3D culture methods that possess a potential to serve as a model of neurotropic viral diseases, including HIV. In this study, we first generated and characterized several hiPSC lines from healthy human donor skin fibroblast cells. hiPSCs were then used for the generation of microglia-containing human cerebral organoids (hCOs). Once fully characterized, hCOs were infected with HIV-1 in the presence and absence of cART regimens and viral infection was studied by cellular, molecular/biochemical, and virological assays. Our results revealed that hCOs were productively infected with HIV-1 as evident by viral p24-ELISA in culture media, RT-qPCR and RNAscope analysis of viral RNA, as well as ddPCR analysis of proviral HIV-1 in genomic DNA samples. More interestingly, replication and gene expression of HIV-1 were also greatly suppressed by cART in hCOs as early as 7 days post-infections. Our results suggest that hCOs derived from hiPSCs support HIV-1 replication and gene expression and may serve as a unique platform to better understand neuropathology of HIV infection in the brain.
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Affiliation(s)
- Martina Donadoni
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Senem Cakir
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Anna Bellizzi
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Michael Swingler
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA
| | - Ilker K Sariyer
- Department of Microbiology, Immunology and Inflammation, Center for Neurovirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, PA, USA.
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5
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Rodriguez NR, Fortune T, Hegde E, Weinstein MP, Keane AM, Mangold JF, Swartz TH. Oxidative phosphorylation in HIV-1 infection: impacts on cellular metabolism and immune function. Front Immunol 2024; 15:1360342. [PMID: 38529284 PMCID: PMC10962326 DOI: 10.3389/fimmu.2024.1360342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/26/2024] [Indexed: 03/27/2024] Open
Abstract
Human Immunodeficiency Virus Type 1 (HIV-1) presents significant challenges to the immune system, predominantly characterized by CD4+ T cell depletion, leading to Acquired Immunodeficiency Syndrome (AIDS). Antiretroviral therapy (ART) effectively suppresses the viral load in people with HIV (PWH), leading to a state of chronic infection that is associated with inflammation. This review explores the complex relationship between oxidative phosphorylation, a crucial metabolic pathway for cellular energy production, and HIV-1, emphasizing the dual impact of HIV-1 infection and the metabolic and mitochondrial effects of ART. The review highlights how HIV-1 infection disrupts oxidative phosphorylation, promoting glycolysis and fatty acid synthesis to facilitate viral replication. ART can exacerbate metabolic dysregulation despite controlling viral replication, impacting mitochondrial DNA synthesis and enhancing reactive oxygen species production. These effects collectively contribute to significant changes in oxidative phosphorylation, influencing immune cell metabolism and function. Adenosine triphosphate (ATP) generated through oxidative phosphorylation can influence the metabolic landscape of infected cells through ATP-detected purinergic signaling and contributes to immunometabolic dysfunction. Future research should focus on identifying specific targets within this pathway and exploring the role of purinergic signaling in HIV-1 pathogenesis to enhance HIV-1 treatment modalities, addressing both viral infection and its metabolic consequences.
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Affiliation(s)
| | | | | | | | | | | | - Talia H. Swartz
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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6
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Riggs PK, Anderson AM, Tang B, Rubin LH, Morgello S, Marra CM, Gelman BB, Clifford DB, Franklin D, Heaton RK, Ellis RJ, Fennema-Notestine C, Letendre SL. Elevated Plasma Protein Carbonyl Concentration Is Associated with More Abnormal White Matter in People with HIV. Viruses 2023; 15:2410. [PMID: 38140650 PMCID: PMC10747698 DOI: 10.3390/v15122410] [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: 11/23/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Structural brain abnormalities, including those in white matter (WM), remain common in people with HIV (PWH). Their pathogenesis is uncertain and may reflect multiple etiologies. Oxidative stress is associated with inflammation, HIV, and its comorbidities. The post-translational carbonylation of proteins results from oxidative stress, and circulating protein carbonyls may reflect this. In this cross-sectional analysis, we evaluated the associations between protein carbonyls and a panel of soluble biomarkers of neuronal injury and inflammation in plasma (N = 45) and cerebrospinal fluid (CSF, n = 32) with structural brain MRI. The volume of abnormal WM was normalized for the total WM volume (nAWM). In this multisite project, all regression models were adjusted for the scanner. The candidate covariates included demographics, HIV disease characteristics, and comorbidities. Participants were PWH on virally suppressive antiretroviral therapy (ART) and were mostly white (64.4%) men (88.9%), with a mean age of 56.8 years. In unadjusted analyses, more nAWM was associated with higher plasma protein carbonyls (p = 0.002) and higher CCL2 (p = 0.045). In the adjusted regression models for nAWM, the association with plasma protein carbonyls remained significant (FDR p = 0.018). Protein carbonyls in plasma may be a valuable biomarker of oxidative stress and its associated adverse health effects, including within the central nervous system. If confirmed, these findings would support the hypothesis that reducing oxidative stress could treat or prevent WM injury in PWH.
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Affiliation(s)
- Patricia K. Riggs
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, San Diego, CA 92093, USA
| | - Albert M. Anderson
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Bin Tang
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
| | - Leah H. Rubin
- Departments of Neurology, Psychiatry and Behavioral Sciences, and Epidemiology, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Susan Morgello
- Departments of Neurology, Neuroscience, and Pathology, Mt Sinai School of Medicine, New York, NY 10029, USA
| | - Christina M. Marra
- Department of Neurology, University of Washington, Seattle, WA 98195, USA
| | - Benjamin B. Gelman
- Departments of Pathology, and Neuroscience & Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - David B. Clifford
- Department of Neurology, Washington University in St Louis, St Louis, MO 63110, USA
| | - Donald Franklin
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
| | - Robert K. Heaton
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
| | - Ronald J. Ellis
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
- Department of Neurosciences, University of California San Diego, San Diego, CA 92093, USA
| | - Christine Fennema-Notestine
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
- Department of Radiology, University of California San Diego, San Diego, CA 92093, USA
| | - Scott L. Letendre
- Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California San Diego, San Diego, CA 92093, USA
- Department of Psychiatry, University of California San Diego, San Diego, CA 92093, USA
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7
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Alvarez-Rivera E, Ortiz-Hernández EJ, Lugo E, Lozada-Reyes LM, Boukli NM. Oncogenic Proteomics Approaches for Translational Research and HIV-Associated Malignancy Mechanisms. Proteomes 2023; 11:22. [PMID: 37489388 PMCID: PMC10366845 DOI: 10.3390/proteomes11030022] [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: 03/30/2023] [Revised: 06/09/2023] [Accepted: 06/29/2023] [Indexed: 07/26/2023] Open
Abstract
Recent advances in the field of proteomics have allowed extensive insights into the molecular regulations of the cell proteome. Specifically, this allows researchers to dissect a multitude of signaling arrays while targeting for the discovery of novel protein signatures. These approaches based on data mining are becoming increasingly powerful for identifying both potential disease mechanisms as well as indicators for disease progression and overall survival predictive and prognostic molecular markers for cancer. Furthermore, mass spectrometry (MS) integrations satisfy the ongoing demand for in-depth biomarker validation. For the purpose of this review, we will highlight the current developments based on MS sensitivity, to place quantitative proteomics into clinical settings and provide a perspective to integrate proteomics data for future applications in cancer precision medicine. We will also discuss malignancies associated with oncogenic viruses such as Acquire Immunodeficiency Syndrome (AIDS) and suggest novel mechanisms behind this phenomenon. Human Immunodeficiency Virus type-1 (HIV-1) proteins are known to be oncogenic per se, to induce oxidative and endoplasmic reticulum stresses, and to be released from the infected or expressing cells. HIV-1 proteins can act alone or in collaboration with other known oncoproteins, which cause the bulk of malignancies in people living with HIV-1 on ART.
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Affiliation(s)
- Eduardo Alvarez-Rivera
- Biomedical Proteomics Facility, Department of Microbiology and Immunology, Universidad Central del Caribe, School of Medicine, Bayamón, PR 00960, USA
| | - Emanuel J. Ortiz-Hernández
- Biomedical Proteomics Facility, Department of Microbiology and Immunology, Universidad Central del Caribe, School of Medicine, Bayamón, PR 00960, USA
| | - Elyette Lugo
- Biomedical Proteomics Facility, Department of Microbiology and Immunology, Universidad Central del Caribe, School of Medicine, Bayamón, PR 00960, USA
| | | | - Nawal M. Boukli
- Biomedical Proteomics Facility, Department of Microbiology and Immunology, Universidad Central del Caribe, School of Medicine, Bayamón, PR 00960, USA
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8
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Kharbanda KK, Chokshi S, Tikhanovich I, Weinman SA, New-Aaron M, Ganesan M, Osna NA. A Pathogenic Role of Non-Parenchymal Liver Cells in Alcohol-Associated Liver Disease of Infectious and Non-Infectious Origin. BIOLOGY 2023; 12:255. [PMID: 36829532 PMCID: PMC9953685 DOI: 10.3390/biology12020255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/30/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023]
Abstract
Now, much is known regarding the impact of chronic and heavy alcohol consumption on the disruption of physiological liver functions and the induction of structural distortions in the hepatic tissues in alcohol-associated liver disease (ALD). This review deliberates the effects of alcohol on the activity and properties of liver non-parenchymal cells (NPCs), which are either residential or infiltrated into the liver from the general circulation. NPCs play a pivotal role in the regulation of organ inflammation and fibrosis, both in the context of hepatotropic infections and in non-infectious settings. Here, we overview how NPC functions in ALD are regulated by second hits, such as gender and the exposure to bacterial or viral infections. As an example of the virus-mediated trigger of liver injury, we focused on HIV infections potentiated by alcohol exposure, since this combination was only limitedly studied in relation to the role of hepatic stellate cells (HSCs) in the development of liver fibrosis. The review specifically focusses on liver macrophages, HSC, and T-lymphocytes and their regulation of ALD pathogenesis and outcomes. It also illustrates the activation of NPCs by the engulfment of apoptotic bodies, a frequent event observed when hepatocytes are exposed to ethanol metabolites and infections. As an example of such a double-hit-induced apoptotic hepatocyte death, we deliberate on the hepatotoxic accumulation of HIV proteins, which in combination with ethanol metabolites, causes intensive hepatic cell death and pro-fibrotic activation of HSCs engulfing these HIV- and malondialdehyde-expressing apoptotic hepatocytes.
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Affiliation(s)
- Kusum K. Kharbanda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Shilpa Chokshi
- Institute of Hepatology, Foundation for Liver Research, London SE5 9NT, UK
- Faculty of Life Sciences and Medicine, King’s College London, London SE5 8AF, UK
| | - Irina Tikhanovich
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, MO 66160, USA
| | - Steven A. Weinman
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, MO 66160, USA
- Research Service, Kansas City Veterans Administration Medical Center, Kansas City, MO 64128, USA
| | - Moses New-Aaron
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Murali Ganesan
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Natalia A. Osna
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, Omaha, NE 68105, USA
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
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9
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Qu B, Liu X, Liang Y, Zheng K, Zhang C, Lu L. Salidroside in the Treatment of NAFLD/NASH. Chem Biodivers 2022; 19:e202200401. [PMID: 36210339 DOI: 10.1002/cbdv.202200401] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 10/03/2022] [Indexed: 12/27/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the commonest reason for chronic liver diseases in the world and is commonly related to the hepatic manifestation of the metabolic syndrome. Non-alcoholic steatohepatitis (NASH) is a deteriorating form of NAFLD, which can eventually develop into fibrosis, cirrhosis, and liver cancer. The reason for NAFLD/NASH development is complicated, such as liver lipid metabolism, oxidative stress, inflammatory response, apoptosis and autophagy, liver fibrosis and gut microbiota. Apart from bariatric surgery and lifestyle changes, officially approved drug therapy for NAFLD/NASH treatment is lacking. Salidroside (SDS) is a phenolic compound extensively distributed in the tubers of Rhodiola plants, which possesses many significant biological activities. This review summarized the related targets regulated by SDS in treating NAFLD/NASH. It is indicated that SDS could improve the status of NAFLD/NASH by ameliorating abnormal lipid metabolism, inhibiting oxidative stress, regulating apoptosis and autophagy, reducing inflammatory response, alleviating fibrosis and regulating gut microbiota. In conclusion, although the multiple bioactivities of SDS have been confirmed, the clinical data are inadequate and need to become the focus of attention in the later study.
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Affiliation(s)
- Baozhen Qu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Xuemao Liu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Yanjiao Liang
- Department of Oncology Center, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, 266042, China
| | - Keke Zheng
- Department of Oncology Center, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, 266042, China
| | - Chunling Zhang
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Linlin Lu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
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10
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Kumar A, Sinha N, Kodidela S, Zhou L, Singh UP, Kumar S. Effect of benzo(a)pyrene on oxidative stress and inflammatory mediators in astrocytes and HIV-infected macrophages. PLoS One 2022; 17:e0275874. [PMID: 36240258 PMCID: PMC9565757 DOI: 10.1371/journal.pone.0275874] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 09/23/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Benzo(a)pyrene (BaP), an important polycyclic aromatic hydrocarbons (PAH) component of cigarette/tobacco smoking, is known to cause adverse health effects and is responsible for various life-threatening conditions including cancer. However, it is not yet clear whether BaP contributes to the macrophage- and astrocyte-mediated inflammatory response. METHODS We examined the acute (up to 72 h) effects of BaP on the expression of antioxidant enzymes (AOEs), cytokines/chemokines, and cytochromes P450 (CYP) enzymes in astrocytic cell lines, SVGA, and chronically HIV-infected U1 macrophage. The treated cells were examined for mRNA, protein levels of CYPs, AOEs superoxide dismutase-1 (SOD1) and catalase (CAT), cytokines/chemokines, using Western blot, multiplex ELISA, and reactive oxygen species (ROS) by flow cytometry analysis. RESULTS Upon acute exposure, BaP (1 μM) showed a significant increase in the mRNA levels of CYPs (CYP1A1 and CYP1B1), and pro-inflammatory cytokine IL-1β in SVGA cells following BaP for 24, 48, and 72h. In addition, we observed a significant increase in the mRNA levels of SOD1 and CAT at 24h of BaP treatment. In contrast, BaP did not exert any change in the protein expression of AOEs and CYP enzymes. In U1 cells, however, we noticed an interesting increase in the levels of MCP-1 as well as a modest increase in TNFα, IL-8 and IL-1β levels observed at 72 h of BaP treatment but could not reach to statistically significant level. CONCLUSIONS Overall, these results suggest that BaP contributes in part to macrophage and astrocyte-mediated neuroinflammation by mainly inducing IL-1β and MCP-1 production, which is likely to occur with the involvement of CYP and/or oxidative stress pathways.
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Affiliation(s)
- Asit Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Namita Sinha
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Sunitha Kodidela
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Lina Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Udai P. Singh
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States of America
- * E-mail:
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11
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Yegiazaryan A, Abnousian A, Alexander LJ, Badaoui A, Flaig B, Sheren N, Aghazarian A, Alsaigh D, Amin A, Mundra A, Nazaryan A, Guilford FT, Venketaraman V. Recent Developments in the Understanding of Immunity, Pathogenesis and Management of COVID-19. Int J Mol Sci 2022; 23:9297. [PMID: 36012562 PMCID: PMC9409103 DOI: 10.3390/ijms23169297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 02/03/2023] Open
Abstract
Coronaviruses represent a diverse family of enveloped positive-sense single stranded RNA viruses. COVID-19, caused by Severe Acute Respiratory Syndrome Coronavirus-2, is a highly contagious respiratory disease transmissible mainly via close contact and respiratory droplets which can result in severe, life-threatening respiratory pathologies. It is understood that glutathione, a naturally occurring antioxidant known for its role in immune response and cellular detoxification, is the target of various proinflammatory cytokines and transcription factors resulting in the infection, replication, and production of reactive oxygen species. This leads to more severe symptoms of COVID-19 and increased susceptibility to other illnesses such as tuberculosis. The emergence of vaccines against COVID-19, usage of monoclonal antibodies as treatments for infection, and implementation of pharmaceutical drugs have been effective methods for preventing and treating symptoms. However, with the mutating nature of the virus, other treatment modalities have been in research. With its role in antiviral defense and immune response, glutathione has been heavily explored in regard to COVID-19. Glutathione has demonstrated protective effects on inflammation and downregulation of reactive oxygen species, thereby resulting in less severe symptoms of COVID-19 infection and warranting the discussion of glutathione as a treatment mechanism.
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Affiliation(s)
- Aram Yegiazaryan
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Arbi Abnousian
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Logan J. Alexander
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Ali Badaoui
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Brandon Flaig
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Nisar Sheren
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Armin Aghazarian
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Dijla Alsaigh
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Arman Amin
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Akaash Mundra
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Anthony Nazaryan
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
| | | | - Vishwanath Venketaraman
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
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12
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Proulx J, Stacy S, Park IW, Borgmann K. A Non-Canonical Role for IRE1α Links ER and Mitochondria as Key Regulators of Astrocyte Dysfunction: Implications in Methamphetamine use and HIV-Associated Neurocognitive Disorders. Front Neurosci 2022; 16:906651. [PMID: 35784841 PMCID: PMC9247407 DOI: 10.3389/fnins.2022.906651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/20/2022] [Indexed: 11/13/2022] Open
Abstract
Astrocytes are one of the most numerous glial cells in the central nervous system (CNS) and provide essential support to neurons to ensure CNS health and function. During a neuropathological challenge, such as during human immunodeficiency virus (HIV)-1 infection or (METH)amphetamine exposure, astrocytes shift their neuroprotective functions and can become neurotoxic. Identifying cellular and molecular mechanisms underlying astrocyte dysfunction are of heightened importance to optimize the coupling between astrocytes and neurons and ensure neuronal fitness against CNS pathology, including HIV-1-associated neurocognitive disorders (HAND) and METH use disorder. Mitochondria are essential organelles for regulating metabolic, antioxidant, and inflammatory profiles. Moreover, endoplasmic reticulum (ER)-associated signaling pathways, such as calcium and the unfolded protein response (UPR), are important messengers for cellular fate and function, including inflammation and mitochondrial homeostasis. Increasing evidence supports that the three arms of the UPR are involved in the direct contact and communication between ER and mitochondria through mitochondria-associated ER membranes (MAMs). The current study investigated the effects of HIV-1 infection and chronic METH exposure on astrocyte ER and mitochondrial homeostasis and then examined the three UPR messengers as potential regulators of astrocyte mitochondrial dysfunction. Using primary human astrocytes infected with pseudotyped HIV-1 or exposed to low doses of METH for 7 days, astrocytes had increased mitochondrial oxygen consumption rate (OCR), cytosolic calcium flux and protein expression of UPR mediators. Notably, inositol-requiring protein 1α (IRE1α) was most prominently upregulated following both HIV-1 infection and chronic METH exposure. Moreover, pharmacological inhibition of the three UPR arms highlighted IRE1α as a key regulator of astrocyte metabolic function. To further explore the regulatory role of astrocyte IRE1α, astrocytes were transfected with an IRE1α overexpression vector followed by activation with the proinflammatory cytokine interleukin 1β. Overall, our findings confirm IRE1α modulates astrocyte mitochondrial respiration, glycolytic function, morphological activation, inflammation, and glutamate uptake, highlighting a novel potential target for regulating astrocyte dysfunction. Finally, these findings suggest both canonical and non-canonical UPR mechanisms of astrocyte IRE1α. Thus, additional studies are needed to determine how to best balance astrocyte IRE1α functions to both promote astrocyte neuroprotective properties while preventing neurotoxic properties during CNS pathologies.
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13
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Halcrow PW, Lakpa KL, Khan N, Afghah Z, Miller N, Datta G, Chen X, Geiger JD. HIV-1 gp120-Induced Endolysosome de-Acidification Leads to Efflux of Endolysosome Iron, and Increases in Mitochondrial Iron and Reactive Oxygen Species. J Neuroimmune Pharmacol 2022; 17:181-194. [PMID: 33834418 PMCID: PMC8497638 DOI: 10.1007/s11481-021-09995-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/31/2021] [Indexed: 12/29/2022]
Abstract
The HIV-1 coat protein gp120 continues to be implicated in the pathogenesis of HIV-1 associated neurocognitive disorder (HAND); a condition known to affect ~50% of people living with HIV-1 (PLWH). Autopsy brain tissues of HAND individuals display morphological changes to mitochondria and endolysosomes, and HIV-1 gp120 causes mitochondrial dysfunction including increased levels of reactive oxygen species (ROS) and de-acidification of endolysosomes. Ferrous iron is linked directly to ROS production, ferrous iron is contained in and released from endolysosomes, and PLWH have elevated iron and ROS levels. Based on those findings, we tested the hypothesis that HIV-1 gp120-induced endolysosome de-acidification and subsequent iron efflux from endolysosomes is responsible for increased levels of ROS. In U87MG glioblastoma cells, HIV-1 gp120 de-acidified endolysosomes, reduced endolysosome iron levels, increased levels of cytosolic and mitochondrial iron, and increased levels of cytosolic and mitochondrial ROS. These effects were all attenuated significantly by the endolysosome-specific iron chelator deferoxamine, by inhibitors of endolysosome-resident two-pore channels and divalent metal transporter-1 (DMT-1), and by inhibitors of mitochondria-resident DMT-1 and mitochondrial permeability transition pores. These results suggest that oxidative stress commonly observed with HIV-1 gp120 is downstream of its ability to de-acidify endolysosomes, to increase the release of iron from endolysosomes, and to increase the uptake of iron into mitochondria. Thus, endolysosomes might represent early and upstream targets for therapeutic strategies against HAND.
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Affiliation(s)
| | | | - Nabab Khan
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58203, USA
| | - Zahra Afghah
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58203, USA
| | - Nicole Miller
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58203, USA
| | - Gaurav Datta
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58203, USA
| | - Xuesong Chen
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58203, USA
| | - Jonathan D. Geiger
- Address correspondence to: Jonathan D. Geiger, Ph.D., Chester Fritz Distinguished Professor, Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, 504 Hamline Street, Room #110, Grand Forks, North Dakota 58203, (701) 777-2183 (P), (701) 777-0387 (F),
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14
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Zheng Y, Reiner B, Liu J, Xu L, Xiong H. Methamphetamine augments HIV-1 gp120 inhibition of synaptic transmission and plasticity in rat hippocampal slices: Implications for methamphetamine exacerbation of HIV-associated neurocognitive disorders. Neurobiol Dis 2022; 168:105712. [PMID: 35337950 PMCID: PMC9150446 DOI: 10.1016/j.nbd.2022.105712] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 11/30/2022] Open
Abstract
Methamphetamine (Meth) abuse and human immunodeficiency virus type 1 (HIV-1) infection are two major public health problems worldwide. Being frequently comorbid with HIV-1 infection, Meth abuse exacerbates neurocognitive impairment in HIV-1-infected individuals even in the era of combined antiretroviral therapy. While a large body of research have studied the individual effects of Meth and HIV-1 envelope glycoprotein 120 (gp120) in the brain, far less has focused on their synergistic influence. Moreover, it is well-documented that the hippocampus is the primary site of spatial learning and long-term memory formation. Dysregulation of activity-dependent synaptic transmission and plasticity in the hippocampus is believed to impair neurocognitive function. To uncover the underlying mechanisms for increased incidence and severity of HIV-1-associated neurocognitive disorders (HAND) in HIV-1-infected patients with Meth abuse, we investigated acute individual and combined effects of Meth (20 μM) and gp120 (200 pM) on synaptic transmission and plasticity in the CA1 region of young adult male rat hippocampus, a brain region known to be vulnerable to HIV-1 infection. Our results showed that acute localized application of Meth and gp120 each alone onto the CA1 region reduced short-term dynamics of input-output responses and frequency facilitation, and attenuated long-term potentiation (LTP) induced by either high frequency stimulation or theta burst stimulation. A synergistic augmentation on activity-dependent synaptic plasticity was observed when Meth and gp120 were applied in combination. Paired-pulse facilitation results exhibited an altered facilitation ratio, suggesting a presynaptic site of action. Further studies revealed an involvement of microglia NLRP3 inflammasome activation in Meth augmentation of gp120-mediated attenuation of LTP. Taken together, our results demonstrated Meth augmented gp120 attenuation of LTP in the hippocampus. Since LTP is the accepted experimental analog of learning at the synaptic level, such augmentation may underlie Meth exacerbation of HAND observed clinically.
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Affiliation(s)
- Ya Zheng
- The Neurophysiology Laboratory, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Benjamin Reiner
- The Neurophysiology Laboratory, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Jianuo Liu
- The Neurophysiology Laboratory, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Linda Xu
- The Neurophysiology Laboratory, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA
| | - Huangui Xiong
- The Neurophysiology Laboratory, Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
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15
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Allen CNS, Arjona SP, Santerre M, Sawaya BE. Hallmarks of Metabolic Reprogramming and Their Role in Viral Pathogenesis. Viruses 2022; 14:602. [PMID: 35337009 PMCID: PMC8955778 DOI: 10.3390/v14030602] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/07/2023] Open
Abstract
Metabolic reprogramming is a hallmark of cancer and has proven to be critical in viral infections. Metabolic reprogramming provides the cell with energy and biomass for large-scale biosynthesis. Based on studies of the cellular changes that contribute to metabolic reprogramming, seven main hallmarks can be identified: (1) increased glycolysis and lactic acid, (2) increased glutaminolysis, (3) increased pentose phosphate pathway, (4) mitochondrial changes, (5) increased lipid metabolism, (6) changes in amino acid metabolism, and (7) changes in other biosynthetic and bioenergetic pathways. Viruses depend on metabolic reprogramming to increase biomass to fuel viral genome replication and production of new virions. Viruses take advantage of the non-metabolic effects of metabolic reprogramming, creating an anti-apoptotic environment and evading the immune system. Other non-metabolic effects can negatively affect cellular function. Understanding the role metabolic reprogramming plays in viral pathogenesis may provide better therapeutic targets for antivirals.
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Affiliation(s)
- Charles N. S. Allen
- Molecular Studies of Neurodegenerative Diseases Lab, FELS Cancer Institute for Personalized Medicine Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (C.N.S.A.); (S.P.A.); (M.S.)
| | - Sterling P. Arjona
- Molecular Studies of Neurodegenerative Diseases Lab, FELS Cancer Institute for Personalized Medicine Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (C.N.S.A.); (S.P.A.); (M.S.)
| | - Maryline Santerre
- Molecular Studies of Neurodegenerative Diseases Lab, FELS Cancer Institute for Personalized Medicine Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (C.N.S.A.); (S.P.A.); (M.S.)
| | - Bassel E. Sawaya
- Molecular Studies of Neurodegenerative Diseases Lab, FELS Cancer Institute for Personalized Medicine Institute, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (C.N.S.A.); (S.P.A.); (M.S.)
- Departments of Neurology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
- Department of Cancer and Cell Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
- Department of Neural Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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16
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Kim Y, Cho AY, Kim HC, Ryu D, Jo SA, Jung YS. Effects of Natural Polyphenols on Oxidative Stress-Mediated Blood–Brain Barrier Dysfunction. Antioxidants (Basel) 2022; 11:antiox11020197. [PMID: 35204080 PMCID: PMC8868362 DOI: 10.3390/antiox11020197] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 02/01/2023] Open
Abstract
The blood-brain barrier (BBB), which consists mainly of brain microvascular endothelial cells and astrocytes connected by tight junctions (TJs) and adhesion molecules (AMs), maintains the homeostatic balance between brain parenchyma and extracellular fluid. Accumulating evidence shows that BBB dysfunction is a common feature of neurodegenerative diseases, including stroke, traumatic brain injury, and Alzheimer’s disease. Among the various pathological pathways of BBB dysfunction, reactive oxygen species (ROS) are known to play a key role in inducing BBB disruption mediated via TJ modification, AM induction, cytoskeletal reorganization, and matrix metalloproteinase activation. Thus, antioxidants have been suggested to exert beneficial effects on BBB dysfunction-associated brain diseases. In this review, we summarized the sources of ROS production in multiple cells that constitute or surround the BBB, such as BBB endothelial cells, astrocytes, microglia, and neutrophils. We also reviewed various pathological mechanisms by which BBB disruption is caused by ROS in these cells. Finally, we summarized the effects of various natural polyphenols on BBB dysfunction to suggest a therapeutic strategy for BBB disruption-related brain diseases.
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Affiliation(s)
- Yeonjae Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - A Yeon Cho
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Hong Cheol Kim
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
| | - Dajung Ryu
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
| | - Sangmee Ahn Jo
- Department of Nanobiomedical Science & BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea;
- Department of Pharmacology, College of Pharmacy, Dankook University, Cheonan 31116, Korea
| | - Yi-Sook Jung
- College of Pharmacy, Ajou University, Suwon 16499, Korea; (Y.K.); (A.Y.C.); (H.C.K.); (D.R.)
- Research Institute of Pharmaceutical Sciences and Technology, Ajou University, Suwon 16499, Korea
- Correspondence: ; Tel.: +82-31-219-3444
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17
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Protective Effects of Sesamol against Liver Oxidative Stress and Inflammation in High-Fat Diet-Induced Hepatic Steatosis. Nutrients 2021; 13:nu13124484. [PMID: 34960036 PMCID: PMC8704932 DOI: 10.3390/nu13124484] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 12/30/2022] Open
Abstract
Chronic high-fat diet (HFD) is associated with the onset and progression of hepatic steatosis, and oxidative stress is highly involved in this process. The potential role of sesamol (SEM) against oxidative stress and inflammation at the transcriptional level in a mice model of hepatic steatosis is not known. In this study, we aimed to investigate the scavenging effects of SEM towards reactive oxygen generated by lipid accumulation in the liver of obese mice and to explore the mechanisms of protection. Markers of oxidative stress, vital enzymes involved in stimulating oxidative stress or inflammation, and nuclear transcription of Nrf2 were examined. Our results showed that SEM significantly inhibited the activity of the HFD-induced hepatic enzymes CYP2E1 and NOX2, associated with oxidative stress generation. Additionally, SEM reversed HFD-induced activation of NF-κB, a redox-sensitive transcription factor, and attenuated the expression of hepatic TNF-α, a proinflammatory molecule. Moreover, SEM enhanced HFD-induced hepatic Nrf2 nuclear transcription and increased the levels of its downstream target genes Ho1 and Nqo1, which indicated antiinflammation and antioxidant properties. Our study suggests that chronic HFD led to hepatic steatosis, while SEM exhibited protective effects on the liver by counteracting the oxidative stress and inflammation induced by HFD. The underlying mechanism might involve multiple pathways at the transcriptional level; the antioxidant defense mechanism was in partly mediated by the upregulation of Nrf2.
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18
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Buckley S, Byrnes S, Cochrane C, Roche M, Estes JD, Selemidis S, Angelovich TA, Churchill MJ. The role of oxidative stress in HIV-associated neurocognitive disorders. Brain Behav Immun Health 2021; 13:100235. [PMID: 34589750 PMCID: PMC8474476 DOI: 10.1016/j.bbih.2021.100235] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/18/2021] [Accepted: 02/24/2021] [Indexed: 12/02/2022] Open
Abstract
HIV-associated neurocognitive disorders (HAND) are a leading cause of morbidity in up to 50% of individuals living with HIV, despite effective treatment with antiretroviral therapy (ART). Current evidence suggests that chronic inflammation associated with HIV is especially attributed to the dysregulated production of reactive oxygen species (ROS) that contribute to neurodegeneration and poor clinical outcomes. While ROS have beneficial effects in eliciting immune responses to infection, chronic ROS production causes damage to macromolecules such as DNA and lipids that has been linked to altered redox homeostasis associated with antioxidant dysregulation. As a result, this disruption in the balance between antioxidant-dependent mechanisms of ROS inactivation and ROS production by enzymes such as the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase family, as well as from the electron transport chain of the mitochondria can result in oxidative stress. This is particularly relevant to the brain, which is exquisitely susceptible to oxidative stress due to its inherently high lipid concentration and ROS levels that have been linked to many neurodegenerative diseases that have similar stages of pathogenesis to HAND. In this review, we discuss the possible role and mechanisms of ROS production leading to oxidative stress that underpin HAND pathogenesis even when HIV is suppressed by current gold-standard antiretroviral therapies. Furthermore, we highlight that pathological ROS can serve as biomarkers for HIV-dependent HAND, and how manipulation of oxidative stress and antioxidant-dependent pathways may facilitate novel strategies for HIV cure. Production of reactive oxygen species has been linked to neurodegenerative diseases. ROS production contributes to HIV-associated neurocognitive disorders. ROS may be used as a biomarker for HIV-associated neurocognitive disorders. Manipulation of antioxidant pathways may present novel HIV cure strategies.
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Affiliation(s)
- Sarah Buckley
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Sarah Byrnes
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Catherine Cochrane
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Michael Roche
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia.,The Peter Doherty Institute for Infection and Immunity, The University of Melbourne and Royal Melbourne Hospital, Melbourne, Australia
| | - Jacob D Estes
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia.,Vaccine and Gene Therapy Institute, Oregon National Primate Research Centre, Oregon Health & Science University, United States
| | - Stavros Selemidis
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia
| | - Thomas A Angelovich
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia.,Life Sciences, Burnet Institute, Melbourne, Australia
| | - Melissa J Churchill
- Chronic Infectious and Inflammatory Diseases Program, School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia.,Life Sciences, Burnet Institute, Melbourne, Australia.,Departments of Microbiology and Medicine, Monash University, Clayton, Australia
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19
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Dragomanova S, Miteva S, Nicoletti F, Mangano K, Fagone P, Pricoco S, Staykov H, Tancheva L. Therapeutic Potential of Alpha-Lipoic Acid in Viral Infections, including COVID-19. Antioxidants (Basel) 2021; 10:1294. [PMID: 34439542 PMCID: PMC8389191 DOI: 10.3390/antiox10081294] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/10/2021] [Accepted: 08/13/2021] [Indexed: 12/20/2022] Open
Abstract
Oxidative stress (OS), resulting from a disrupted balance between reactive oxygen species (ROS) and protective antioxidants, is thought to play an important pathogenetic role in several diseases, including viral infections. Alpha-lipoic acid (LA) is one of the most-studied and used natural compounds, as it is endowed with a well-defined antioxidant and immunomodulatory profile. Owing to these properties, LA has been tested in several chronic immunoinflammatory conditions, such as diabetic neuropathy and metabolic syndrome. In addition, a pharmacological antiviral profile of LA is emerging, that has attracted attention on the possible use of this compound for the cotreatment of several viral infections. Here, we will review the emerging literature on the potential use of LA in viral infections, including COVID-19.
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Affiliation(s)
- Stela Dragomanova
- Department of Pharmacology, Toxicology and Pharmacotherapy, Faculty of Pharmacy, Medical University, 9002 Varna, Bulgaria;
| | - Simona Miteva
- Department of Behavior Neurobiology, Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (S.M.); (L.T.)
| | - Ferdinando Nicoletti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 89, 95123 Catania, Italy; (K.M.); (P.F.); (S.P.)
| | - Katia Mangano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 89, 95123 Catania, Italy; (K.M.); (P.F.); (S.P.)
| | - Paolo Fagone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 89, 95123 Catania, Italy; (K.M.); (P.F.); (S.P.)
| | - Salvatore Pricoco
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 89, 95123 Catania, Italy; (K.M.); (P.F.); (S.P.)
| | - Hristian Staykov
- Department of Pharmacology and toxicology, Medical University, Sofia, 2, Zdrave Str., 1431 Sofia, Bulgaria;
| | - Lyubka Tancheva
- Department of Behavior Neurobiology, Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (S.M.); (L.T.)
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20
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Shin EJ, Jeong JH, Hwang Y, Sharma N, Dang DK, Nguyen BT, Nah SY, Jang CG, Bing G, Nabeshima T, Kim HC. Methamphetamine-induced dopaminergic neurotoxicity as a model of Parkinson's disease. Arch Pharm Res 2021; 44:668-688. [PMID: 34286473 DOI: 10.1007/s12272-021-01341-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/06/2021] [Indexed: 12/01/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease with a high prevalence, approximately 1 % in the elderly population. Numerous studies have demonstrated that methamphetamine (MA) intoxication caused the neurological deficits and nigrostriatal damage seen in Parkinsonian conditions, and subsequent rodent studies have found that neurotoxic binge administration of MA reproduced PD-like features, in terms of its symptomatology and pathology. Several anti-Parkinsonian medications have been shown to attenuate the motor impairments and dopaminergic damage induced by MA. In addition, it has been recognized that mitochondrial dysfunction, oxidative stress, pro-apoptosis, proteasomal/autophagic impairment, and neuroinflammation play important roles in inducing MA neurotoxicity. Importantly, MA neurotoxicity has been shown to share a common mechanism of dopaminergic toxicity with that of PD pathogenesis. This review describes the major findings on the neuropathological features and underlying neurotoxic mechanisms induced by MA and compares them with Parkinsonian pathogenesis. Taken together, it is suggested that neurotoxic binge-type administration of MA in rodents is a valid animal model for PD that may provide knowledge on the neuropathogenesis of PD.
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Affiliation(s)
- Eun-Joo Shin
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea
| | - Ji Hoon Jeong
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, College of Medicine, Chung-Ang University, 06974, Seoul, Republic of Korea
| | - Yeonggwang Hwang
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea
| | - Naveen Sharma
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea.,Department of Global Innovative Drugs, Graduate School of Chung-Ang University, College of Medicine, Chung-Ang University, 06974, Seoul, Republic of Korea
| | - Duy-Khanh Dang
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea.,Pharmacy Faculty, Can Tho University of Medicine and Pharmacy, 900000, Can Tho City, Vietnam
| | - Bao-Trong Nguyen
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory, Department of Physiology, College of Veterinary Medicine and Bio/Molecular Informatics Center, Konkuk University, 05029, Seoul, Republic of Korea
| | - Choon-Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, 16419, Suwon, Republic of Korea
| | - Guoying Bing
- Department of Neuroscience, College of Medicine, University of Kentucky, KY, 40536, Lexington, USA
| | - Toshitaka Nabeshima
- Advanced Diagnostic System Research Laboratory, Graduate School of Health Science, Fujita Health University, 470-1192, Toyoake, Japan
| | - Hyoung-Chun Kim
- Neuropsychopharmacology and Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea. .,Neuropsychopharmacology & Toxicology Program, College of Pharmacy, Kangwon National University, 24341, Chunchon, Republic of Korea.
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21
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Methamphetamine Enhances HIV-Induced Aberrant Proliferation of Neural Progenitor Cells via the FOXO3-Mediated Mechanism. Mol Neurobiol 2021; 58:5421-5436. [PMID: 33983546 PMCID: PMC8599226 DOI: 10.1007/s12035-021-02407-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/27/2021] [Indexed: 10/26/2022]
Abstract
Maintaining an intact pool of neural progenitor cells (NPCs) is crucial for generating new and functionally active neurons. Methamphetamine (METH) can exacerbate the HIV-induced deficit of adult neurogenesis; however, potential mechanisms of this influence are still poorly understood. In the present study, we present evidence that chronic exposure to METH combined with brain infection by EcoHIV results in enhanced proliferation of NPCs in the subventricular zone (SVZ) in mice. This effect was long-lasting as it was preserved ex vivo in NPCs isolated from the exposed mice over several passages in the absence of additional treatments. Increased proliferation in response to METH plus HIV was associated with dysregulation of cyclin B1 and cyclin D. Transcriptomic studies indicated that 27 out of the top 30 differentially expressed genes in response to METH plus EcoHIV were targets of the forkhead box O transcriptional factor (FOXO) and primarily FOXO3. Additional ex vivo studies and in vitro experiments using human NPCs exposed to METH and infected with HIV revealed upregulation of the CXCL12-CXCR4 axis, leading to activation of downstream pAkt and pErk, the pathways that can phosphorylate FOXO3 and force its exports from the nuclei into the cytoplasm. Indeed, nuclear expulsion of FOXO3 was demonstrated both in mice exposed to METH and infected with EcoHIV and in cell cultures of human NPCs. These results provide novel information that exposure to METH combined with HIV infection can induce aberrant proliferation of SVZ-derived NPCs and identifies CXCL12-CXCR4-Akt-1-mediated phosphorylation of FOXO3 as the mechanism responsible for this effect.
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22
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Sander WJ, Fourie C, Sabiu S, O'Neill FH, Pohl CH, O'Neill HG. Reactive oxygen species as potential antiviral targets. Rev Med Virol 2021; 32:e2240. [PMID: 33949029 DOI: 10.1002/rmv.2240] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are by-products of cellular metabolism and can be either beneficial, at low levels, or deleterious, at high levels, to the cell. It is known that several viral infections can increase oxidative stress, which is mainly facilitated by viral-induced imbalances in the antioxidant defence mechanisms of the cell. While the exact role of ROS in certain viral infections (adenovirus and dengue virus) remains unknown, other viruses can use ROS for enhancement of pathogenesis (SARS coronavirus and rabies virus) or replication (rhinovirus, West Nile virus and vesicular stomatitis virus) or both (hepatitis C virus, human immunodeficiency virus and influenza virus). While several viral proteins (mainly for hepatitis C and human immunodeficiency virus) have been identified to play a role in ROS formation, most mediators of viral ROS modulation are yet to be elucidated. Treatment of viral infections, including hepatitis C virus, human immunodeficiency virus and influenza virus, with ROS inhibitors has shown a decrease in both pathogenesis and viral replication both in vitro and in animal models. Clinical studies indicating the potential for targeting ROS-producing pathways as possible broad-spectrum antiviral targets should be evaluated in randomized controlled trials.
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Affiliation(s)
- Willem J Sander
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa
| | - Corinne Fourie
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa
| | - Saheed Sabiu
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa.,Department of Biotechnology and Food Science, Durban University of Technology, Durban, South Africa
| | - Frans H O'Neill
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa
| | - Carolina H Pohl
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa
| | - Hester G O'Neill
- Department of Microbiology and Biochemistry, University of the Free State, Bloemfontein, South Africa
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23
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Namba MD, Leyrer-Jackson JM, Nagy EK, Olive MF, Neisewander JL. Neuroimmune Mechanisms as Novel Treatment Targets for Substance Use Disorders and Associated Comorbidities. Front Neurosci 2021; 15:650785. [PMID: 33935636 PMCID: PMC8082184 DOI: 10.3389/fnins.2021.650785] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022] Open
Abstract
Recent studies examining the neurobiology of substance abuse have revealed a significant role of neuroimmune signaling as a mechanism through which drugs of abuse induce aberrant changes in synaptic plasticity and contribute to substance abuse-related behaviors. Immune signaling within the brain and the periphery critically regulates homeostasis of the nervous system. Perturbations in immune signaling can induce neuroinflammation or immunosuppression, which dysregulate nervous system function including neural processes associated with substance use disorders (SUDs). In this review, we discuss the literature that demonstrates a role of neuroimmune signaling in regulating learning, memory, and synaptic plasticity, emphasizing specific cytokine signaling within the central nervous system. We then highlight recent preclinical studies, within the last 5 years when possible, that have identified immune mechanisms within the brain and the periphery associated with addiction-related behaviors. Findings thus far underscore the need for future investigations into the clinical potential of immunopharmacology as a novel approach toward treating SUDs. Considering the high prevalence rate of comorbidities among those with SUDs, we also discuss neuroimmune mechanisms of common comorbidities associated with SUDs and highlight potentially novel treatment targets for these comorbid conditions. We argue that immunopharmacology represents a novel frontier in the development of new pharmacotherapies that promote long-term abstinence from drug use and minimize the detrimental impact of SUD comorbidities on patient health and treatment outcomes.
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Affiliation(s)
- Mark D. Namba
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | | | - Erin K. Nagy
- Department of Psychology, Arizona State University, Tempe, AZ, United States
| | - M. Foster Olive
- Department of Psychology, Arizona State University, Tempe, AZ, United States
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24
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Lewis D, Kenneally M, van denHeuvel C, Byard RW. Methamphetamine deaths: Changing trends and diagnostic issues. MEDICINE, SCIENCE, AND THE LAW 2021; 61:130-137. [PMID: 33423599 DOI: 10.1177/0025802420986707] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The term 'amphetamine' refers to a class of synthetic drugs which includes methamphetamine. The latter is a globally popular drug of abuse which induces euphoria, affecting cognitive/psychomotor performance and sleep. It also provokes risk taking and violent behaviour. The central effects of methamphetamine are due to the overproduction of neurotransmitters, resulting in high levels of dopamine. In recent years, there have been significant increases in cases of methamphetamine abuse in North and South America, Australia and Asia due to its ready availability and low cost. The following review examines changing trends in methamphetamine use and problems that arise diagnostically in medico-legal cases in determining the significance of post-mortem blood levels, the relationship of these to ante-mortem levels, the possible effects on physical and psychological behaviours and the possible contribution of the drug to a lethal episode.
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Affiliation(s)
- Daniel Lewis
- Adelaide Medical School, The University of Adelaide, Australia
| | | | | | - Roger W Byard
- Adelaide Medical School, The University of Adelaide, Australia
- Forensic Science SA, Australia
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25
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Isaguliants M, Bayurova E, Avdoshina D, Kondrashova A, Chiodi F, Palefsky JM. Oncogenic Effects of HIV-1 Proteins, Mechanisms Behind. Cancers (Basel) 2021; 13:305. [PMID: 33467638 PMCID: PMC7830613 DOI: 10.3390/cancers13020305] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 02/08/2023] Open
Abstract
People living with human immunodeficiency virus (HIV-1) are at increased risk of developing cancer, such as Kaposi sarcoma (KS), non-Hodgkin lymphoma (NHL), cervical cancer, and other cancers associated with chronic viral infections. Traditionally, this is linked to HIV-1-induced immune suppression with depletion of CD4+ T-helper cells, exhaustion of lymphopoiesis and lymphocyte dysfunction. However, the long-term successful implementation of antiretroviral therapy (ART) with an early start did not preclude the oncological complications, implying that HIV-1 and its antigens are directly involved in carcinogenesis and may exert their effects on the background of restored immune system even when present at extremely low levels. Experimental data indicate that HIV-1 virions and single viral antigens can enter a wide variety of cells, including epithelial. This review is focused on the effects of five viral proteins: envelope protein gp120, accessory protein negative factor Nef, matrix protein p17, transactivator of transcription Tat and reverse transcriptase RT. Gp120, Nef, p17, Tat, and RT cause oxidative stress, can be released from HIV-1-infected cells and are oncogenic. All five are in a position to affect "innocent" bystander cells, specifically, to cause the propagation of (pre)existing malignant and malignant transformation of normal epithelial cells, giving grounds to the direct carcinogenic effects of HIV-1.
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Affiliation(s)
- Maria Isaguliants
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden;
- Department of Research, Riga Stradins University, LV-1007 Riga, Latvia
| | - Ekaterina Bayurova
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Darya Avdoshina
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Alla Kondrashova
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden;
| | - Joel M. Palefsky
- Department of Medicine, University of California, San Francisco, CA 94117, USA;
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26
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Jäckle K, Zeis T, Schaeren-Wiemers N, Junker A, van der Meer F, Kramann N, Stadelmann C, Brück W. Molecular signature of slowly expanding lesions in progressive multiple sclerosis. Brain 2020; 143:2073-2088. [PMID: 32577755 DOI: 10.1093/brain/awaa158] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/04/2020] [Accepted: 03/30/2020] [Indexed: 01/08/2023] Open
Abstract
Multiple sclerosis is an immune-mediated chronic inflammatory disease of the CNS that leads to demyelinated lesions in the grey and white matter. Inflammatory, active demyelinating white matter lesions predominate in the relapsing-remitting disease stages, whereas in the progressive stage the so-called slowly expanding lesion is characteristic. These lesions show an accumulation of macrophages/microglia at their borders, mediating the ongoing myelin breakdown and axonal degeneration. The exact pathogenetic mechanisms of lesion progression in chronic multiple sclerosis are still not clear. In the present study, we performed a detailed immunological and molecular profiling of slowly expanding lesions (n = 21) from 13 patients aged between 30 to 74 years (five females and eight males), focusing on macrophage/microglia differentiation. By applying the microglia-specific marker TMEM119, we demonstrate that cells accumulating at the lesion edge almost exclusively belonged to the microglia lineage. Macrophages/microglia can be subdivided into the M1 type, which are associated with inflammatory and degenerative processes, and M2 type, with protective properties, whereby also intermediate polarization phenotypes can be observed. By using a panel of markers characterizing M1- or M2-type macrophages/microglia, we observed a preferential accumulation of M1-type differentiated cells at the lesion edge, indicating a crucial role of these cells in lesion progression. Additionally, unbiased RNA microarray analyses of macrodissected lesion edges from slowly expanding and chronic inactive lesions as well as normal-appearing white matter were performed. In slowly expanding lesions, we identified a total of 165 genes that were upregulated and 35 genes that were downregulated. The upregulated genes included macrophage/microglia-associated genes involved in immune defence and inflammatory processes. Among the upregulated genes were ALOX15B, MME and TNFRSF25. We confirmed increased expression of ALOX15B by quantitative PCR, and of all three genes on the protein level by immunohistochemistry. In conclusion, the present study characterized in detail slowly expanding lesions in progressive multiple sclerosis and demonstrated a preferential accumulation of resident microglia with M1 differentiation at the lesion edge. Microarray analysis showed an increased expression of genes related to immune function, metabolic processes as well as transcription/translation. Thus, these genes may serve as future therapeutic targets to impede lesion progression.
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Affiliation(s)
- Katharina Jäckle
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany.,Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University Medical Center Göttingen, Göttingen, Germany
| | - Thomas Zeis
- Neurobiology, Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Nicole Schaeren-Wiemers
- Neurobiology, Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Andreas Junker
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany.,Department of Neuropathology, University Hospital Essen, Hufelandstraße 55, 45147 Essen, Germany
| | | | - Nadine Kramann
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany
| | - Christine Stadelmann
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany
| | - Wolfgang Brück
- Institute of Neuropathology, University Medical Center Göttingen, Göttingen, Germany
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27
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Wong K, Nguyen J, Blair L, Banjanin M, Grewal B, Bowman S, Boyd H, Gerstner G, Cho HJ, Panfilov D, Tam CK, Aguilar D, Venketaraman V. Pathogenesis of Human Immunodeficiency Virus- Mycobacterium tuberculosis Co-Infection. J Clin Med 2020; 9:E3575. [PMID: 33172001 PMCID: PMC7694603 DOI: 10.3390/jcm9113575] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 02/07/2023] Open
Abstract
Given that infection with Mycobacterium tuberculosis (Mtb) is the leading cause of death amongst individuals living with HIV, understanding the complex mechanisms by which Mtb exacerbates HIV infection may lead to improved treatment options or adjuvant therapies. While it is well-understood how HIV compromises the immune system and leaves the host vulnerable to opportunistic infections such as Mtb, less is known about the interplay of disease once active Mtb is established. This review explores how glutathione (GSH) depletion, T cell exhaustion, granuloma formation, and TNF-α upregulation, as a result of Mtb infection, leads to an increase in HIV disease severity. This review also examines the difficulties of treating coinfected patients and suggests further research on the clinical use of GSH supplementation.
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Affiliation(s)
- Kevin Wong
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - James Nguyen
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Lillie Blair
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Marina Banjanin
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Bunraj Grewal
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Shane Bowman
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Hailey Boyd
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Grant Gerstner
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Hyun Jun Cho
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - David Panfilov
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Cho Ki Tam
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Delaney Aguilar
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
| | - Vishwanath Venketaraman
- College of Osteopathic Medicine of the Pacific-NorthWest, Western University of Health Sciences, Lebanon, OR 97355, USA; (K.W.); (J.N.); (L.B.); (M.B.); (B.G.); (S.B.); (H.B.); (G.G.); (H.J.C.); (D.P.); (C.K.T.); (D.A.)
- College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, CA 91766, USA
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28
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Xiong Q, Tian X, Li W, Chen L, Zhou M, Xu C, Ru Q. Sulforaphane alleviates methamphetamine-induced oxidative damage and apoptosis via the Nrf2-mediated pathway in vitro and in vivo. FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1784099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Qi Xiong
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Xiang Tian
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Weiling Li
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Lin Chen
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Mei Zhou
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Congyue Xu
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
| | - Qin Ru
- Wuhan Institute of Biomedical Sciences, School of Medicine, Jianghan University, Wuhan, PR People’s Republic of China
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29
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Checconi P, De Angelis M, Marcocci ME, Fraternale A, Magnani M, Palamara AT, Nencioni L. Redox-Modulating Agents in the Treatment of Viral Infections. Int J Mol Sci 2020; 21:E4084. [PMID: 32521619 PMCID: PMC7312898 DOI: 10.3390/ijms21114084] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 12/27/2022] Open
Abstract
Viruses use cell machinery to replicate their genome and produce viral proteins. For this reason, several intracellular factors, including the redox state, might directly or indirectly affect the progression and outcome of viral infection. In physiological conditions, the redox balance between oxidant and antioxidant species is maintained by enzymatic and non-enzymatic systems, and it finely regulates several cell functions. Different viruses break this equilibrium and induce an oxidative stress that in turn facilitates specific steps of the virus lifecycle and activates an inflammatory response. In this context, many studies highlighted the importance of redox-sensitive pathways as novel cell-based targets for therapies aimed at blocking both viral replication and virus-induced inflammation. In the review, we discuss the most recent findings in this field. In particular, we describe the effects of natural or synthetic redox-modulating molecules in inhibiting DNA or RNA virus replication as well as inflammatory pathways. The importance of the antioxidant transcription factor Nrf2 is also discussed. Most of the data reported here are on influenza virus infection. We believe that this approach could be usefully applied to fight other acute respiratory viral infections characterized by a strong inflammatory response, like COVID-19.
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Affiliation(s)
- Paola Checconi
- IRCCS San Raffaele Pisana, Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (P.C.); (A.T.P.)
| | - Marta De Angelis
- Department of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy; (M.D.A.); (M.E.M.)
| | - Maria Elena Marcocci
- Department of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy; (M.D.A.); (M.E.M.)
| | - Alessandra Fraternale
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino (PU), Italy; (A.F.); (M.M.)
| | - Mauro Magnani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino (PU), Italy; (A.F.); (M.M.)
| | - Anna Teresa Palamara
- IRCCS San Raffaele Pisana, Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy; (P.C.); (A.T.P.)
- Department of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy; (M.D.A.); (M.E.M.)
| | - Lucia Nencioni
- Department of Public Health and Infectious Diseases, Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, 00185 Rome, Italy; (M.D.A.); (M.E.M.)
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30
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Lazalde-Ramos BP, Zamora-Perez AL, Ortega-Guerrero AI, Quintero-Fraire SZ, Palacios-Lara O, Quirarte-Báez SM, Galaviz-Hernández C, Sosa-Macías M, Ortiz-García YM, Morales-Velazquez G. Genomic Instability Decreases in HIV Patient by Complementary Therapy with Rosmarinus officinalis Extracts. J Med Food 2020; 23:1070-1076. [PMID: 32125929 DOI: 10.1089/jmf.2019.0199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Genomic instability is associated with increased oxidative stress in patients with human immunodeficiency virus (HIV). The aim of this study was to determine the effect of intake of methanolic and aqueous extracts of Rosmarinus officinalis on genomic instability in HIV patients. We studied 67 HIV patients under pharmacological treatment with ATRIPLA who were divided into three groups: group 1, patients under ATRIPLA antiretroviral therapy; group 2, patients with ATRIPLA and rosemary aqueous extract (4 g/L per day); and group 3, patients with ATRIPLA and rosemary methanolic extract (400 mg/day). The genomic instability was evaluated through the buccal micronucleus cytome assay. Oral epithelial cells were taken at the beginning and 1 and 4 months later. The groups that received the pharmacological therapy with ATRIPLA and the complementary therapy with R. officinalis extracts showed a decrease in the number of cells with micronuclei and nuclear abnormalities compared with the group that only received ATRIPLA. The complementary therapy with R. officinalis decreased the genomic instability in HIV patients.
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Affiliation(s)
- Blanca Patricia Lazalde-Ramos
- Master of Science and Chemical Technology, Chemistry Department, Autonomous University of Zacatecas, Zacatecas, Mexico
| | - Ana Lourdes Zamora-Perez
- Institute of Dental Research, University Center for Health Science, University of Guadalajara, Mexico
| | - Aymée Ileana Ortega-Guerrero
- Pharmaceutical-Biological Chemistry Program, Chemistry Department, Autonomous University of Zacatecas, Zacatecas, Mexico
| | - Saira Zulema Quintero-Fraire
- Pharmaceutical-Biological Chemistry Program, Chemistry Department, Autonomous University of Zacatecas, Zacatecas, Mexico
| | - Omar Palacios-Lara
- Outpatient Centers for the Prevention and Care of AIDS and Sexually Transmitted Infections and Care Services Integral Hospital, Secretary of Health, Zacatecas, Zacatecas, Mexico.,Mexican Institute of Social Security, Zacatecas Delegation, Mexico
| | | | | | - Martha Sosa-Macías
- National Polytechnic Institute, CIIDIR-Durango, Academy of Genomics, Durango, Mexico
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Chen Y, Qin C, Huang J, Tang X, Liu C, Huang K, Xu J, Guo G, Tong A, Zhou L. The role of astrocytes in oxidative stress of central nervous system: A mixed blessing. Cell Prolif 2020; 53:e12781. [PMID: 32035016 PMCID: PMC7106951 DOI: 10.1111/cpr.12781] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 12/17/2019] [Accepted: 01/20/2020] [Indexed: 02/05/2023] Open
Abstract
Central nervous system (CNS) maintains a high level of metabolism, which leads to the generation of large amounts of free radicals, and it is also one of the most vulnerable organs to oxidative stress. Emerging evidences have shown that, as the key homeostatic cells in CNS, astrocytes are deeply involved in multiple aspects of CNS function including oxidative stress regulation. Besides, the redox level in CNS can in turn affect astrocytes in morphology and function. The complex and multiple roles of astrocytes indicate that their correct performance is crucial for the normal functioning of the CNS, and its dysfunction may result in the occurrence and progression of various neurological disorders. To date, the influence of astrocytes in CNS oxidative stress is rarely reviewed. Therefore, in this review we sum up the roles of astrocytes in redox regulation and the corresponding mechanisms under both normal and different pathological conditions.
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Affiliation(s)
- Yaxing Chen
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Chen Qin
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Jianhan Huang
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Tang
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Chang Liu
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Keru Huang
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Jianguo Xu
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
| | - Gang Guo
- State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, Chengdu, China
| | - Aiping Tong
- State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, Chengdu, China
| | - Liangxue Zhou
- Department of Neurosurgery, West China Medical School, West China Hospital, Sichuan University, Chengdu, China
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Faia C, Plaisance-Bonstaff K, Peruzzi F. In vitro models of HIV-1 infection of the Central Nervous System. DRUG DISCOVERY TODAY. DISEASE MODELS 2020; 32:5-11. [PMID: 33692833 PMCID: PMC7938360 DOI: 10.1016/j.ddmod.2019.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Neurocognitive disorders associated with HIV-1 infection affect more than half of persons living with HIV (PLWH) under retroviral therapy. Understanding the molecular mechanisms and the complex cellular network communication underlying neurological dysfunction is critical for the development of an effective therapy. As with other neurological disorders, challenges to studying HIV infection of the brain include limited access to clinical samples and proper reproducibility of the complexity of brain networks in cellular and animal models. This review focuses on cellular models used to investigate various aspects of neurological dysfunction associated with HIV infection.
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Affiliation(s)
- Celeste Faia
- Louisiana State University Health Sciences Center and S Stanley Scott Cancer Center
- Department of Microbiology Immunology and Parasitology
| | | | - Francesca Peruzzi
- Louisiana State University Health Sciences Center and S Stanley Scott Cancer Center
- Department of Microbiology Immunology and Parasitology
- Department of Medicine
- Corresponding author: Francesca Peruzzi, 1700 Tulane Ave, New Orleans, LA 70112, Tel: (504) 210-2978,
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Chilunda V, Calderon TM, Martinez-Aguado P, Berman JW. The impact of substance abuse on HIV-mediated neuropathogenesis in the current ART era. Brain Res 2019; 1724:146426. [PMID: 31473221 PMCID: PMC6889827 DOI: 10.1016/j.brainres.2019.146426] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/16/2019] [Accepted: 08/28/2019] [Indexed: 12/21/2022]
Abstract
Approximately 37 million people worldwide are infected with human immunodeficiency virus (HIV). One highly significant complication of HIV infection is the development of HIV-associated neurocognitive disorders (HAND) in 15-55% of people living with HIV (PLWH), that persists even in the antiretroviral therapy (ART) era. The entry of HIV into the central nervous system (CNS) occurs within 4-8 days after peripheral infection. This establishes viral reservoirs that may persist even in the presence of ART. Once in the CNS, HIV infects resident macrophages, microglia, and at low levels, astrocytes. In response to chronic infection and cell activation within the CNS, viral proteins, inflammatory mediators, and host and viral neurotoxic factors produced over extended periods of time result in neuronal injury and loss, cognitive deficits and HAND. Substance abuse is a common comorbidity in PLWH and has been shown to increase neuroinflammation and cognitive disorders. Additionally, it has been associated with poor ART adherence, and increased viral load in the cerebrospinal fluid (CSF), that may also contribute to increased neuroinflammation and neuronal injury. Studies have examined mechanisms that contribute to neuroinflammation and neuronal damage in PLWH, and how substances of abuse exacerbate these effects. This review will focus on how substances of abuse, with an emphasis on methamphetamine (meth), cocaine, and opioids, impact blood brain barrier (BBB) integrity and transmigration of HIV-infected and uninfected monocytes across the BBB, as well as their effects on monocytes/macrophages, microglia, and astrocytes within the CNS. We will also address how these substances of abuse may contribute to HIV-mediated neuropathogenesis in the context of suppressive ART. Additionally, we will review the effects of extracellular dopamine, a neurotransmitter that is increased in the CNS by substances of abuse, on HIV neuropathogenesis and how this may contribute to neuroinflammation, neuronal insult, and HAND in PLWH with active substance use. Lastly, we will discuss some potential therapies to limit CNS inflammation and damage in HIV-infected substance abusers.
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Affiliation(s)
- Vanessa Chilunda
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, USA
| | - Tina M Calderon
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, USA
| | - Pablo Martinez-Aguado
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, USA
| | - Joan W Berman
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, USA; Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY, USA.
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Zhang Y, Shi G, Cai J, Yang J, Zheng Y, Yu D, Liu Q, Gong Y, Zhang Z. Taxifolin alleviates apoptotic injury induced by DEHP exposure through cytochrome P450 homeostasis in chicken cardiomyocytes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109582. [PMID: 31442803 DOI: 10.1016/j.ecoenv.2019.109582] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/13/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
Di-2-ethylhexyl phthalate (DEHP), widely used as a plasticizer, is a ubiquitous artificial pollutant. DEHP can induce biological toxicity in various organs, with an especially high potential for toxicity to the cardiovascular system. Taxifolin (TAX) is used in the treatment of cardiovascular diseases due to its antioxidative capacities. However, it is not clear whether TAX can alleviate apoptosis induced by DEHP exposure through the cytochrome P450 (CYP) pathway in cardiomyocytes. To understand the role of TAX in attenuating cardiomyocyte toxicity induced by DEHP, primary cardiomyocytes were divided into 4 groups (control group, DEHP group, TAX group and DEHP + TAX group). The results showed that in the cardiomyocytes, DEHP initiated apoptosis by increasing the expression of caspase-3, caspase-9, cyt c, and Bax at both the mRNA and protein levels and by decreasing the Bcl-2 levels compared with that of the control group. In addition, the activities of catalase (CAT), superoxide dismutase (SOD), and total antioxidative capacity (T-AOC) were clearly decreased (P < 0.05), while in the DEHP group, the malondialdehyde (MDA) and hydrogen peroxide (H2O2) levels were observably increased (P < 0.05), compared with those in control group. Furthermore, compared with the control group, the DEHP group demonstrated a clear partial decrease in the expression of the mRNA levels of CYP1B1 and CYP2C18 (P < 0.05), and DEHP/TAX cotreatment partially prevented apoptosis and oxidative stress damage (P < 0.05). These results showed that exposure to DEHP induced apoptosis in chicken cardiomyocytes, while TAX could antagonize the toxicity of DEHP on cardiomyocytes by attenuating oxidative stress responses and modulating CYPs.
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Affiliation(s)
- Yuan Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Guangliang Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, China
| | - Jingzeng Cai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Jie Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yingying Zheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Dahai Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Qi Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yafan Gong
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ziwei Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, China.
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Liang Z, Yin P, Zhao L. Effects of combined toxicity of methamphetamine and ketamine on apoptosis, oxidative stress and genotoxicity in HepG2 cells. Food Chem Toxicol 2019; 132:110653. [DOI: 10.1016/j.fct.2019.110653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 01/14/2023]
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Cotto B, Natarajanseenivasan K, Langford D. HIV-1 infection alters energy metabolism in the brain: Contributions to HIV-associated neurocognitive disorders. Prog Neurobiol 2019; 181:101616. [PMID: 31108127 PMCID: PMC6742565 DOI: 10.1016/j.pneurobio.2019.101616] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 04/17/2019] [Accepted: 05/13/2019] [Indexed: 12/17/2022]
Abstract
The brain is particularly sensitive to changes in energy supply. Defects in glucose utilization and mitochondrial dysfunction are hallmarks of nearly all neurodegenerative diseases and are also associated with the cognitive decline that occurs as the brain ages. Chronic neuroinflammation driven by glial activation is commonly implicated as a contributing factor to neurodegeneration and cognitive impairment. Human immunodeficiency virus-1 (HIV-1) disrupts normal brain homeostasis and leads to a spectrum of HIV-associated neurocognitive disorders (HAND). HIV-1 activates stress responses in the brain and triggers a state of chronic neuroinflammation. Growing evidence suggests that inflammatory processes and bioenergetics are interconnected in the propagation of neuronal dysfunction. Clinical studies of people living with HIV and basic research support the notion that HIV-1 creates an environment in the CNS that interrupts normal metabolic processes at the cellular level to collectively alter whole brain metabolism. In this review, we highlight reports of abnormal brain metabolism from clinical studies and animal models of HIV-1. We also describe diverse CNS cell-specific changes in bioenergetics associated with HIV-1. Moreover, we propose that attention should be given to adjunctive therapies that combat sources of metabolic dysfunction as a mean to improve and/or prevent neurocognitive impairments.
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Affiliation(s)
- Bianca Cotto
- Lewis Katz School of Medicine at Temple University, Department of Neuroscience and Center for Neurovirology, Philadelphia, PA, 19140, USA.
| | - Kalimuthusamy Natarajanseenivasan
- Lewis Katz School of Medicine at Temple University, Department of Neuroscience and Center for Neurovirology, Philadelphia, PA, 19140, USA.
| | - Dianne Langford
- Lewis Katz School of Medicine at Temple University, Department of Neuroscience and Center for Neurovirology, Philadelphia, PA, 19140, USA.
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Fields JA, Ellis RJ. HIV in the cART era and the mitochondrial: immune interface in the CNS. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 145:29-65. [PMID: 31208526 DOI: 10.1016/bs.irn.2019.04.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
HIV-associated neurocognitive disorders (HAND) persist in the era of effective combined antiretroviral therapy (cART). A large body of literature suggests that mitochondrial dysfunction is a prospective etiology of HAND in the cART era. While viral load is often suppressed and the immune system remains intact in HIV+ patients on cART, evidence suggests that the central nervous system (CNS) acts as a reservoir for virus and low-level expression of viral proteins, which interact with mitochondria. In particular, the HIV proteins glycoprotein 120, transactivator of transcription, viral protein R, and negative factor have each been linked to mitochondrial dysfunction in the brain. Moreover, cART drugs have also been shown to have detrimental effects on mitochondrial function. Here, we review the evidence generated from human studies, animal models, and in vitro models that support a role for HIV proteins and/or cART drugs in altered production of adenosine triphosphate, mitochondrial dynamics, mitophagy, calcium signaling and apoptosis, oxidative stress, mitochondrial biogenesis, and immunometabolism in the CNS. When insightful, evidence of HIV or cART-induced mitochondrial dysfunction in the peripheral nervous system or other cell types is discussed. Lastly, therapeutic approaches to targeting mitochondrial dysfunction have been summarized with the aim of guiding new investigations and providing hope that mitochondrial-based drugs may provide relief for those suffering with HAND.
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Affiliation(s)
- Jerel Adam Fields
- Department of Psychiatry, University of California San Diego, La Jolla, CA, United States.
| | - Ronald J Ellis
- Department of Neuroscience, University of California San Diego, La Jolla, CA, United States
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38
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Moyano P, Ruiz M, García JM, Frejo MT, Anadon Baselga MJ, Lobo M, García J, Del Pino J. Oxidative stress and cell death induction by amitraz and its metabolite BTS-27271 mediated through cytochrome P450 and NRF2 pathway alteration in primary hippocampal cell. Food Chem Toxicol 2019; 129:87-96. [PMID: 31029719 DOI: 10.1016/j.fct.2019.04.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/13/2019] [Accepted: 04/22/2019] [Indexed: 11/28/2022]
Abstract
Amitraz is a neurotoxic formamidine pesticide that induces cell death in hippocampal neurons, although its mechanisms are unknown. Amitraz produces reactive oxygen species (ROS), which could lead to cell death. Amitraz was shown to induce different cytochrome P450 (CYP) isoenzymes involved with ROS and apoptotic cell death induction. Finally, amitraz was described to decrease the activity of antioxidant enzymes regulated through KEAP1/NRF2 pathway, thus likely leading to a reduction of ROS elimination and to cell death induction. We evaluated the effect of amitraz or BTS-27271 co-treatment with or without the antioxidant N-acetylcysteine and/or the unspecific CYP inhibitor 1-aminobenzotriazole on cell viability and its related mechanisms in wild type and silenced primary hippocampal neurons after 24 h treatment. We observed that amitraz produced oxidative stress and CYPs induction leading to apoptotic cell death. ROS generation was partially mediated by CYPs induction and downregulation of NRF2-pathway through KEAP1 overexpression. These data could help explain the mechanism by which amitraz induces cell death and oxidative stress and provide a therapeutic strategy to protect against this effect in case of poisoning.
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Affiliation(s)
- Paula Moyano
- Department of Pharmacology and Toxicology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain.
| | - Matilde Ruiz
- Department of Legal Medicine, Psychiatry and Pathology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain
| | - José Manuel García
- Department of Pharmacology and Toxicology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain
| | - María Teresa Frejo
- Department of Pharmacology and Toxicology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain
| | - María José Anadon Baselga
- Department of Legal Medicine, Psychiatry and Pathology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Margarita Lobo
- Department of Pharmacology and Toxicology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain
| | - Jimena García
- Department of Pharmacology, Health Sciences School, Alfonso X University, 28691, Madrid, Spain
| | - Javier Del Pino
- Department of Pharmacology and Toxicology, Medicine School, Complutense University of Madrid, 28040, Madrid, Spain.
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Tsai SY, Bendriem RM, Lee CTD. The cellular basis of fetal endoplasmic reticulum stress and oxidative stress in drug-induced neurodevelopmental deficits. Neurobiol Stress 2019; 10:100145. [PMID: 30937351 PMCID: PMC6430408 DOI: 10.1016/j.ynstr.2018.100145] [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: 02/28/2018] [Revised: 12/02/2018] [Accepted: 12/26/2018] [Indexed: 11/30/2022] Open
Abstract
Prenatal substance exposure is a growing public health concern worldwide. Although the opioid crisis remains one of the most prevalent addiction problems in our society, abuse of cocaine, methamphetamines, and other illicit drugs, particularly amongst pregnant women, are nonetheless significant and widespread. Evidence demonstrates prenatal drug exposure can affect fetal brain development and thus can have long-lasting impact on neurobehavioral and cognitive performance later in life. In this review, we highlight research examining the most prevalent drugs of abuse and their effects on brain development with a focus on endoplasmic reticulum stress and oxidative stress signaling pathways. A thorough exploration of drug-induced cellular stress mechanisms during prenatal brain development may provide insight into therapeutic interventions to combat effects of prenatal drug exposure.
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Affiliation(s)
- S-Y.A. Tsai
- Integrative Neuroscience Branch, Division of Neuroscience and Behavior, National Institute on Drug Abuse, The National Institute of Health, Department of Health and Human Services, Bethesda, MD, 20892, USA
| | - Raphael M. Bendriem
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, 10021, USA
| | - Chun-Ting D. Lee
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, USA
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Anderson SM, Naidoo RN, Pillay Y, Tiloke C, Muttoo S, Asharam K, Chuturgoon AA. HIV induced nitric oxide and lipid peroxidation, influences neonatal birthweight in a South African population. ENVIRONMENT INTERNATIONAL 2018; 121:1-12. [PMID: 30170231 DOI: 10.1016/j.envint.2018.08.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 06/08/2023]
Abstract
HIV has been implicated in adverse birth outcomes, due to increased oxidative stress and inflammation. In addition, HIV has been reported to increase nitric oxide levels. Therefore the combined exposures to HIV and traffic-related air pollution, within South Durban, South Africa (SA), may lead to adverse birth outcomes. However, the exact mechanism is still unknown; this study aimed to identify a potential mechanism. First, the influence of HIV on oxidative and nitrosative stress markers in pregnant women was assessed. Secondly, the effect of these stress makers and exposure to oxides of nitrogen (NOx) on neonatal birthweight (BW) was evaluated. Finally, the effect HIV and traffic-related pollution exposure has on the oxidative and endoplasmic profile and epigenetic regulation of Nrf2-Keap1 pathway by miR-144 and miR-28 in pregnant women was determined. Women, in their third trimester with singleton pregnancies, who were HIV+ and HIV-, were recruited from Durban, SA. Biomarker levels of serum nitrites/nitrates (NO) and malondialdehyde (MDA) were analysed and mRNA expression levels of oxidative and endoplasmic stress response genes were assessed. Land regression modelling was performed to determine NOx exposure levels. HIV exposure during pregnancy was associated with increased NO levels. NO was shown to reduce neonatal BW. NO and MDA was found to reciprocally increase each other, with HIV differentially influencing MDA's effect on BW. HIV down-regulated miR-144 which was negatively associated with Nrf2, suggesting a potential mechanism for HIV associated chronic oxidative stress. This study proposes that NO plays a key role in neonatal BW reduction in response to HIV and traffic-related air pollution.
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Affiliation(s)
- Samantha M Anderson
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Rajen N Naidoo
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Yashodani Pillay
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Charlette Tiloke
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Sheena Muttoo
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Kareshma Asharam
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Anil A Chuturgoon
- Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, College of Health Science, University of KwaZulu-Natal, Durban 4041, South Africa.
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Zhang Y, Shu G, Bai Y, Chao J, Chen X, Yao H. Effect of methamphetamine on the fasting blood glucose in methamphetamine abusers. Metab Brain Dis 2018; 33:1585-1597. [PMID: 29946958 DOI: 10.1007/s11011-018-0265-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/04/2018] [Indexed: 11/30/2022]
Abstract
Methamphetamine is a popular psychostimulant worldwide which causes neurotoxicity and neuroinflammation. Although previous studies have characterized potential associations between addictive drugs and fasting blood glucose, the influence of methamphetamine on the blood glucose is still largely unknown. The present study was designed to investigate the change of fasting blood glucose of methamphetamine abusers and to confirm the impairment of liver and kidney. Fasting blood glucose was significantly decreased in methamphetamine abusers and in a high-fat diet mouse model with methamphetamine treatment discontinuation. Serum level of ALT, creatine kinase and creatinine were increased in methamphetamine abusers. Serum level of ALT and AST were increased in a high-fat diet mouse model after methamphetamine injection, but there was no significant difference in the anatomy of the liver and kidney in high-fat diet treated mice with or without methamphetamine. The levels of ALT and creatinine were also increased in the methamphetamine abusers. This study demonstrated that the level of glucose was decreased in methamphetamine abusers and in high-fat diet-fed mice after methamphetamine treatment discontinuation. The effect of methamphetamine on the levels of blood glucose may provide the evidence that methamphetamine abusers should be keep energy balance due to the low blood glucose.
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Affiliation(s)
- Yanhong Zhang
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Guofang Shu
- Department of Clinical Laboratory, Zhongda Hospital, Southeast University School of Medicine, Nanjing, 210009, Jiangsu, China
| | - Ying Bai
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China
| | - Jie Chao
- Department of Physiology, Medical School of Southeast University, Nanjing, China
| | - Xufeng Chen
- Department of Emergency, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
| | - Honghong Yao
- Department of Pharmacology, Medical School of Southeast University, Nanjing, China.
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, Jiangsu, China.
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42
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Krill oil protects PC12 cells against methamphetamine-induced neurotoxicity by inhibiting apoptotic response and oxidative stress. Nutr Res 2018; 58:84-94. [DOI: 10.1016/j.nutres.2018.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 01/05/2023]
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Ranjit S, Patters BJ, Gerth KA, Haque S, Choudhary S, Kumar S. Potential neuroprotective role of astroglial exosomes against smoking-induced oxidative stress and HIV-1 replication in the central nervous system. Expert Opin Ther Targets 2018; 22:703-714. [PMID: 30015535 DOI: 10.1080/14728222.2018.1501473] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION HIV-1-infected smokers are at risk of oxidative damage to neuronal cells in the central nervous system by both HIV-1 and cigarette smoke. Since neurons have a weak antioxidant defense system, they mostly depend on glial cells, particularly astrocytes, for protection against oxidative damage and neurotoxicity. Astrocytes augment the neuronal antioxidant system by supplying cysteine-containing products for glutathione synthesis, antioxidant enzymes such as SOD and catalase, glucose for antioxidant regeneration via the pentose-phosphate pathway, and by recycling of ascorbic acid. Areas covered: The transport of antioxidants and energy substrates from astrocytes to neurons could possibly occur via extracellular nanovesicles called exosomes. This review highlights the neuroprotective potential of exosomes derived from astrocytes against smoking-induced oxidative stress, HIV-1 replication, and subsequent neurotoxicity observed in HIV-1-positive smokers. Expert opinion: During stress conditions, the antioxidants released from astrocytes either via extracellular fluid or exosomes to neurons may not be sufficient to provide neuroprotection. Therefore, we put forward a novel strategy to combat oxidative stress in the central nervous system, using synthetically developed exosomes loaded with antioxidants such as glutathione and the anti-aging protein Klotho.
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Affiliation(s)
- Sabina Ranjit
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Benjamin J Patters
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Kelli A Gerth
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Sanjana Haque
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
| | - Sanjeev Choudhary
- b Department of Internal Medicine , University of Texas Medical Branch , Galveston , TX , United States
| | - Santosh Kumar
- a Department of Pharmaceutical Sciences , University of Tennessee Health Science Center , Memphis , TN , United States
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44
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The potential role of pharmacogenomics and biotransformation in hypersensitivity reactions to paracetamol. Curr Opin Allergy Clin Immunol 2018; 18:302-309. [DOI: 10.1097/aci.0000000000000452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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45
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Benzo(a)pyrene in Cigarette Smoke Enhances HIV-1 Replication through NF-κB Activation via CYP-Mediated Oxidative Stress Pathway. Sci Rep 2018; 8:10394. [PMID: 29991690 PMCID: PMC6039513 DOI: 10.1038/s41598-018-28500-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/14/2018] [Indexed: 02/06/2023] Open
Abstract
Smoking aggravates HIV-1 pathogenesis and leads to decreased responses to antiretroviral therapy. In this study, we aim to find a molecular mechanism that would explain smoking-induced HIV-1 replication. Benzo(a)pyrene (BaP), a major carcinogen in cigarette, requires metabolic activation through cytochrome P450s (CYPs) to exert its toxic effects. We hypothesized that CYP-mediated BaP metabolism generates reactive oxygen species (ROS), and the resultant oxidative stress aggravates HIV-1 replication. As expected, we observed ~3 to 4-fold increase in HIV-1 replication in U1 cells and human primary macrophages after chronic BaP exposure. We also observed ~30-fold increase in the expression of CYP1A1 at mRNA level, ~2.5-fold increase in its enzymatic activity as well as elevated ROS and cytotoxicity in U1 cells. The knock-down of the CYP1A1 gene using siRNA and treatment with selective CYP inhibitors and antioxidants significantly reduced HIV-1 replication. Further, we observed a nuclear translocation of NF-κB subunits (p50 and p65) after chronic BaP exposure, which was reduced by treatment with siRNA and antioxidants/CYP inhibitors. Suppression of NF-κB pathway using specific NF-κB inhibitors also significantly reduced HIV-1 replication. Altogether, our results suggest that BaP enhances HIV-1 replication in macrophages by a CYP-mediated oxidative stress pathway followed by the NF-κB pathway.
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Rahman MA, Gong Y, Kumar S. In vitro evaluation of structural analogs of diallyl sulfide as novel CYP2E1 inhibitors for their protective effect against xenobiotic-induced toxicity and HIV replication. Toxicol Lett 2018; 292:31-38. [PMID: 29694836 DOI: 10.1016/j.toxlet.2018.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 12/13/2022]
Abstract
Diallyl sulfide (DAS) has been shown to prevent xenobiotic (e.g. ethanol, acetaminophen) induced toxicity and disease (e.g. HIV-1) pathogenesis. DAS imparts its beneficial effect by inhibiting CYP2E1-mediated metabolism of xenobiotics, especially at high concentration. However, DAS also causes toxicity at relatively high dosages and with long exposure times. Therefore, the goal of the current study was to investigate the structural analogs of DAS for their improved toxicity profiles and their effectiveness in reducing xenobiotic-induced toxicity and HIV-1 replication. Previously, we identified commercially available analogs that possessed CYP2E1 inhibitory capacity greater than or equal to that of DAS. In this study, we evaluated the toxicity and efficacy of these analogs using hepatocytes, monocytes, and astrocytes where CYP2E1 plays an important role in xenobiotic-mediated toxicity. Our results showed that thiophene, allyl methyl sulfide, diallyl ether, and 2-prop-2-enoxyacetamide are significantly less cytotoxic than DAS in these cells. Moreover, these analogs reduced ethanol- and acetaminophen-induced toxicity in hepatocytes and HIV-1 replication in monocytes more effectively than DAS. Overall, our findings are significant in terms of using these DAS analogs as a tool in vitro and in vivo, especially to examine chronic xenobiotic-induced toxicity and disease pathogenesis that occurs through the CYP2E1 pathway.
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Affiliation(s)
- Mohammad A Rahman
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Yuqing Gong
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163 USA
| | - Santosh Kumar
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN 38163 USA.
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Shah A, Kumar A. Methamphetamine-mediated endoplasmic reticulum (ER) stress induces type-1 programmed cell death in astrocytes via ATF6, IRE1α and PERK pathways. Oncotarget 2018; 7:46100-46119. [PMID: 27323860 PMCID: PMC5216784 DOI: 10.18632/oncotarget.10025] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 05/26/2016] [Indexed: 12/21/2022] Open
Abstract
Methamphetamine (MA), a psychostimulant drug has been associated with a variety of neurotoxic effects which are thought to be mediated by induction of pro-inflammatory cytokines/chemokines, oxidative stress and damage to blood-brain-barrier. Conversely, the ER stress-mediated apoptosis has been implicated in several neurodegenerative diseases. However, its involvement in MA-mediated neurodegenerative effects remains largely unexplored. The present study was undertaken to assess the effect of MA on ER stress and its possible involvement in apoptosis. For this purpose, SVGA astrocytes were treated with MA, which induced the expressions of BiP and CHOP at both, mRNA and protein levels. This phenomenon was also confirmed in HFA and various regions of mouse brain. Assessment of IRE1α, ATF6 and PERK pathways further elucidated the mechanistic details underlying MA-mediated ER stress. Knockdown of various intermediate molecules in ER stress pathways using siRNA demonstrated reduction in MA-mediated CHOP. Finally, MA-mediated apoptosis was demonstrated via MTT assay and TUNEL staining. The involvement of ER stress in the apoptosis was demonstrated with the help of MTT and TUNEL assays in the presence of siRNA against various ER stress proteins. The apoptosis also involved activation of caspase-3 and caspase-9, which was reversed by knockdown with various siRNAs. Altogether, this is the first report demonstrating mechanistic details responsible for MA-mediated ER stress and its role in apoptosis. This study provides a novel group of targets that can be explored in future for management of MA-mediated cell death and MA-associated neurodegenerative disorders.
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Affiliation(s)
- Ankit Shah
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA
| | - Anil Kumar
- Division of Pharmacology and Toxicology, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA
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Borgmann K, Ghorpade A. Methamphetamine Augments Concurrent Astrocyte Mitochondrial Stress, Oxidative Burden, and Antioxidant Capacity: Tipping the Balance in HIV-Associated Neurodegeneration. Neurotox Res 2017; 33:433-447. [PMID: 28993979 DOI: 10.1007/s12640-017-9812-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/15/2017] [Accepted: 08/31/2017] [Indexed: 02/06/2023]
Abstract
Methamphetamine (METH) use, with and without human immunodeficiency virus (HIV)-1 comorbidity, exacerbates neurocognitive decline. Oxidative stress is a probable neurotoxic mechanism during HIV-1 central nervous system infection and METH abuse, as viral proteins, antiretroviral therapy and METH have each been shown to induce mitochondrial dysfunction. However, the mechanisms regulating mitochondrial homeostasis and overall oxidative burden in astrocytes are not well understood in the context of HIV-1 infection and METH abuse. Here, we report METH-mediated dysregulation of astrocyte mitochondrial morphology and function during prolonged exposure to low levels of METH. Mitochondria became larger and more rod shaped with METH when assessed by machine learning, segmentation analyses. These changes may be mediated by elevated mitofusin expression coupled with inhibitory phosphorylation of dynamin-related protein-1, which regulate mitochondrial fusion and fission, respectively. While METH decreased oxygen consumption and ATP levels during acute exposure, chronic treatment of 1 to 2 weeks significantly enhanced both when tested in the absence of METH. Together, these changes significantly increased not only expression of antioxidant proteins, augmenting the astrocyte's oxidative capacity, but also oxidative damage. We propose that targeting astrocytes to reduce their overall oxidative burden and expand their antioxidant capacity could ultimately tip the balance from neurotoxicity towards neuroprotection.
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Affiliation(s)
- Kathleen Borgmann
- Institute for Molecular Medicine, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA
| | - Anuja Ghorpade
- Institute for Molecular Medicine, University of North Texas Health Science Center, 3500 Camp Bowie Blvd, Fort Worth, TX, 76107, USA.
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Arizuka N, Murakami T, Suzuki K. The effect of β-caryophyllene on nonalcoholic steatohepatitis. J Toxicol Pathol 2017; 30:263-273. [PMID: 29097836 PMCID: PMC5660948 DOI: 10.1293/tox.2017-0018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/29/2017] [Indexed: 12/27/2022] Open
Abstract
The pathogenesis of nonalcoholic steatohepatitis (NASH) is not fully understood, but many studies have suggested that oxidative stress plays a key role. The methionine- and choline-deficient diet (MCD) administration model can reproduce histopathological features of human NASH and is widely used for investigating NASH. C57BL/6J mice have been used in many studies, but strain differences in pathogenesis have not been sufficiently investigated. We administred MCD to two mouse strains and then compared difference between strains and investigated the effects of β-caryophyllene (BCP), which possesses an antioxidant effect, on development and progression of NASH. ICR and C57BL/6J mice were administred a control diet, MCD, MCD containing 0.02% BCP, or MCD containing 0.2% BCP. After 4 or 8 weeks, mice were sacrificed. In both strains, MCD administration induced hepatic steatosis and inflammation. These lesions were more severe in C57BL/6J mice than ICR mice, and liver fibrosis was observed at 8 weeks in C57BL/6J mice. These changes were attenuated by BCP coadministration. The mRNA expression of monocyte chemotactic and activating factor (MCP)-1 and fibrosis-related factors increased in C57BL/6J mice, and these increases were reduced by BCP coadministration. The mRNA expression of antioxidant-related factors decreased in both strains, and these decreases were attenuated by BCP coadministration. Based on these results, the C57BL/6J mouse was a more suitable model for MCD-induced NASH than the ICR mouse. In addition, it was suggested that antioxidant effect of BCP might suppressed the damage of hepatocytes caused by oxidative stress and following inflammation and fibrosis.
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Affiliation(s)
- Naoya Arizuka
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
| | - Kazuhiko Suzuki
- Laboratory of Veterinary Toxicology, Cooperative Department
of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho,
Fuchu, Tokyo 183-8509, Japan
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Huang R, Zhang Y, Han B, Bai Y, Zhou R, Gan G, Chao J, Hu G, Yao H. Circular RNA HIPK2 regulates astrocyte activation via cooperation of autophagy and ER stress by targeting MIR124-2HG. Autophagy 2017; 13:1722-1741. [PMID: 28786753 DOI: 10.1080/15548627.2017.1356975] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Circular RNAs are a subclass of noncoding RNAs in mammalian cells; however, whether these RNAs are involved in the regulation of astrocyte activation is largely unknown. Here, we have shown that the circular RNA HIPK2 (circHIPK2) functions as an endogenous microRNA-124 (MIR124-2HG) sponge to sequester MIR124-2HG and inhibit its activity, resulting in increased sigma non-opioid intracellular receptor 1 (SIGMAR1/OPRS1) expression. Knockdown of circHIPK2 expression significantly inhibited astrocyte activation via the regulation of autophagy and endoplasmic reticulum (ER) stress through the targeting of MIR124-2HG and SIGMAR1. These findings were confirmed in vivo in mouse models, as microinjection of a circHIPK2 siRNA lentivirus into mouse hippocampi inhibited astrocyte activation induced by methamphetamine or lipopolysaccharide (LPS). These findings provide novel insights regarding the specific contribution of circHIPK2 to astrocyte activation in the context of drug abuse as well as for the treatment of a broad range of neuroinflammatory disorders.
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Affiliation(s)
- Rongrong Huang
- a Department of Pharmacology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Yuan Zhang
- a Department of Pharmacology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Bing Han
- a Department of Pharmacology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Ying Bai
- a Department of Pharmacology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Rongbin Zhou
- b Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , China
| | - Guangming Gan
- c Department of Genetics and Developmental Biology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Jie Chao
- d Department of Physiology, School of Medicine , Southeast University , Nanjing, Jiangsu , China
| | - Gang Hu
- e Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology , Nanjing Medical University , Nanjing, Jiangsu , China
| | - Honghong Yao
- a Department of Pharmacology, School of Medicine , Southeast University , Nanjing, Jiangsu , China.,f Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease , Southeast University , Nanjing, Jiangsu , China
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