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Seasons GM, Pellow C, Kuipers HF, Pike GB. Ultrasound and neuroinflammation: immune modulation via the heat shock response. Theranostics 2024; 14:3150-3177. [PMID: 38855178 PMCID: PMC11155413 DOI: 10.7150/thno.96270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 05/09/2024] [Indexed: 06/11/2024] Open
Abstract
Current pharmacological therapeutic approaches targeting chronic inflammation exhibit transient efficacy, often with adverse effects, limiting their widespread use - especially in the context of neuroinflammation. Effective interventions require the consideration of homeostatic function, pathway dysregulation, and pleiotropic effects when evaluating therapeutic targets. Signalling molecules have multiple functions dependent on the immune context, and this complexity results in therapeutics targeting a single signalling molecule often failing in clinical translation. Additionally, the administration of non-physiologic levels of neurotrophic or anti-inflammatory factors can alter endogenous signalling, resulting in unanticipated effects. Exacerbating these challenges, the central nervous system (CNS) is isolated by the blood brain barrier (BBB), restricting the infiltration of many pharmaceutical compounds into the brain tissue. Consequently, there has been marked interest in therapeutic techniques capable of modulating the immune response in a pleiotropic manner; ultrasound remains on this frontier. While ultrasound has been used therapeutically in peripheral tissues - accelerating healing in wounds, bone fractures, and reducing inflammation - it is only recently that it has been applied to the CNS. The transcranial application of low intensity pulsed ultrasound (LIPUS) has successfully mitigated neuroinflammation in vivo, in models of neurodegenerative disease across a broad spectrum of ultrasound parameters. To date, the underlying biological effects and signalling pathways modulated by ultrasound are poorly understood, with a diverse array of reported molecules implicated. The distributed nature of the beneficial response to LIPUS implies the involvement of an, as yet, undetermined upstream signalling pathway, homologous to the protective effect of febrile range hyperthermia in chronic inflammation. As such, we review the heat shock response (HSR), a protective signalling pathway activated by thermal and mechanical stress, as the possible upstream regulator of the anti-inflammatory effects of ultrasound.
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Affiliation(s)
- Graham M. Seasons
- Hotchkiss Brain Institute, University of Calgary, Alberta, T2N 4N1, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Alberta, T2N 1N4, Canada
| | - Carly Pellow
- Hotchkiss Brain Institute, University of Calgary, Alberta, T2N 4N1, Canada
- Department of Radiology, Cumming School of Medicine, University of Calgary, Alberta, T2N 1N4, Canada
| | - Hedwich F. Kuipers
- Hotchkiss Brain Institute, University of Calgary, Alberta, T2N 4N1, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Alberta, T2N 1N4, Canada
- Department of Cell Biology & Anatomy, Hotchkiss Brain Institute and Snyder Institute for Chronic Diseases, University of Calgary, Alberta, T2N 1N4, Canada
| | - G. Bruce Pike
- Hotchkiss Brain Institute, University of Calgary, Alberta, T2N 4N1, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Alberta, T2N 1N4, Canada
- Department of Radiology, Cumming School of Medicine, University of Calgary, Alberta, T2N 1N4, Canada
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2
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Zhang L, Zhou T, Su Y, He L, Wang Z. Involvement of histone methylation in the regulation of neuronal death. J Physiol Biochem 2023; 79:685-693. [PMID: 37544979 DOI: 10.1007/s13105-023-00978-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
Neuronal death occurs in various physiological and pathological processes, and apoptosis, necrosis, and ferroptosis are three major forms of neuronal death. Neuronal apoptosis, necrosis, and ferroptosis are widely identified to involve the progress of stroke, Parkinson's disease, and Alzheimer's disease. A growing body of evidence has pointed out that neuronal death is tightly associated with expression of related genes and alteration of signaling molecules. In addition, recently, epigenetics has been increasingly focused on as a vital regulatory mechanism for neuronal apoptosis, necrosis, and ferroptosis, providing a new direction for treating nervous system diseases. Moreover, growing researches suggest that histone methylation or demethylation is involved in the processes of neuronal apoptosis, necrosis, and ferroptosis. These researches may imply that studying the potential roles of histone methylation is essential for treating the nervous system diseases. Here, we review potential roles of histone methylation and demethylation in neuronal death, which may give us a new direction in treating the nervous system diseases.
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Affiliation(s)
- Lei Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Tai Zhou
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Yaxin Su
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Li He
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - Zhongcheng Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China.
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3
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Venediktov AA, Bushueva OY, Kudryavtseva VA, Kuzmin EA, Moiseeva AV, Baldycheva A, Meglinski I, Piavchenko GA. Closest horizons of Hsp70 engagement to manage neurodegeneration. Front Mol Neurosci 2023; 16:1230436. [PMID: 37795273 PMCID: PMC10546621 DOI: 10.3389/fnmol.2023.1230436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/18/2023] [Indexed: 10/06/2023] Open
Abstract
Our review seeks to elucidate the current state-of-the-art in studies of 70-kilodalton-weighed heat shock proteins (Hsp70) in neurodegenerative diseases (NDs). The family has already been shown to play a crucial role in pathological aggregation for a wide spectrum of brain pathologies. However, a slender boundary between a big body of fundamental data and its implementation has only recently been crossed. Currently, we are witnessing an anticipated advancement in the domain with dozens of studies published every month. In this review, we briefly summarize scattered results regarding the role of Hsp70 in the most common NDs including Alzheimer's disease (AD), Parkinson's disease (PD), and amyotrophic lateral sclerosis (ALS). We also bridge translational studies and clinical trials to portray the output for medical practice. Available options to regulate Hsp70 activity in NDs are outlined, too.
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Affiliation(s)
- Artem A. Venediktov
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Olga Yu Bushueva
- Laboratory of Genomic Research, Research Institute for Genetic and Molecular Epidemiology, Kursk State Medical University, Kursk, Russia
| | - Varvara A. Kudryavtseva
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Egor A. Kuzmin
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Aleksandra V. Moiseeva
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Anna Baldycheva
- STEMM Laboratory, University of Exeter, Exeter, United Kingdom
| | - Igor Meglinski
- Department of Physics, University of Oulu, Oulu, Finland
- College of Engineering and Physical Sciences, Aston University, Birmingham, United Kingdom
| | - Gennadii A. Piavchenko
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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Nica V, Marino A, Pucci C, Şen Ö, Emanet M, De Pasquale D, Carmignani A, Petretto A, Bartolucci M, Lauciello S, Brescia R, de Boni F, Prato M, Marras S, Drago F, Hammad M, Segets D, Ciofani G. Cell-Membrane-Coated and Cell-Penetrating Peptide-Conjugated Trimagnetic Nanoparticles for Targeted Magnetic Hyperthermia of Prostate Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37312240 DOI: 10.1021/acsami.3c07248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Prostate malignancy represents the second leading cause of cancer-specific death among the male population worldwide. Herein, enhanced intracellular magnetic fluid hyperthermia is applied in vitro to treat prostate cancer (PCa) cells with minimum invasiveness and toxicity and highly specific targeting. We designed and optimized novel shape-anisotropic magnetic core-shell-shell nanoparticles (i.e., trimagnetic nanoparticles - TMNPs) with significant magnetothermal conversion following an exchange coupling effect to an external alternating magnetic field (AMF). The functional properties of the best candidate in terms of heating efficiency (i.e., Fe3O4@Mn0.5Zn0.5Fe2O4@CoFe2O4) were exploited following surface decoration with PCa cell membranes (CM) and/or LN1 cell-penetrating peptide (CPP). We demonstrated that the combination of biomimetic dual CM-CPP targeting and AMF responsiveness significantly induces caspase 9-mediated apoptosis of PCa cells. Furthermore, a downregulation of the cell cycle progression markers and a decrease of the migration rate in surviving cells were observed in response to the TMNP-assisted magnetic hyperthermia, suggesting a reduction in cancer cell aggressiveness.
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Affiliation(s)
- Valentin Nica
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Attilio Marino
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Carlotta Pucci
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Özlem Şen
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Melis Emanet
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Daniele De Pasquale
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Alessio Carmignani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
- Sant'Anna School of Advanced Studies, The Biorobotics Institute, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
| | - Andrea Petretto
- IRCCS Istituto Giannina Gaslini, Core Facilities-Clinical Proteomics and Metabolomics, Via Gerolamo Gaslini 5, 16147 Genova, Italy
| | - Martina Bartolucci
- IRCCS Istituto Giannina Gaslini, Core Facilities-Clinical Proteomics and Metabolomics, Via Gerolamo Gaslini 5, 16147 Genova, Italy
| | - Simone Lauciello
- Istituto Italiano di Tecnologia, Electron Microscopy Facility, Via Morego 30, 16163 Genova, Italy
| | - Rosaria Brescia
- Istituto Italiano di Tecnologia, Electron Microscopy Facility, Via Morego 30, 16163 Genova, Italy
| | - Francesco de Boni
- Istituto Italiano di Tecnologia, Materials Characterization Facility, Via Morego 30, 16163 Genova, Italy
| | - Mirko Prato
- Istituto Italiano di Tecnologia, Materials Characterization Facility, Via Morego 30, 16163 Genova, Italy
| | - Sergio Marras
- Istituto Italiano di Tecnologia, Materials Characterization Facility, Via Morego 30, 16163 Genova, Italy
| | - Filippo Drago
- Istituto Italiano di Tecnologia, Electron Microscopy Facility, Via Morego 30, 16163 Genova, Italy
| | - Mohaned Hammad
- University of Duisburg-Essen, Particle Science and Technology - Institute for Combustion and Gas Dynamics (IVG-PST), Carl-Benz Strasse 199, 47057 Duisburg, Germany
| | - Doris Segets
- University of Duisburg-Essen, Particle Science and Technology - Institute for Combustion and Gas Dynamics (IVG-PST), Carl-Benz Strasse 199, 47057 Duisburg, Germany
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
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5
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Hebishy M, Shintouo CM, Dufait I, Debacq-Chainiaux F, Bautmans I, Njemini R. Heat shock proteins and cellular senescence in humans: A systematic review. Arch Gerontol Geriatr 2023; 113:105057. [PMID: 37207540 DOI: 10.1016/j.archger.2023.105057] [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: 03/23/2023] [Revised: 04/27/2023] [Accepted: 05/07/2023] [Indexed: 05/21/2023]
Abstract
Cellular senescence (CS) is a permanent arrest of cell growth and exit of the cell cycle. It is an important tumor suppression mechanism and has a key role in wound healing, tissue regeneration, and prevention of tissue fibrosis. Despite the short-term benefits of CS, accumulation of senescent cells has deleterious effects and is associated with several pathological age-related phenotypes. As Heat Shock Proteins (HSP) are associated with cyto-protection, their role in longevity and CS became a research interest. However, an overview of the relationship between HSP and CS in humans still lacks in the literature. To provide an overview of the current state of the literature, this systematic review focused on the role of HSP in the development of CS in humans. PubMed, Web of Science and Embase were systematically screened for studies on the relationship between HSP and CS in humans. A total of 14 articles were eligible for inclusion. The heterogeneity and lack of numerical reporting of outcomes obstructed the conduction of a meta-analysis. The results consistently show that HSP depletion results in increased CS, while overexpression of HSP decreases CS, whether in cancer, fibroblasts, or stem cell lines. This systematic review summarized the literature on the prospective role of HSP in the development of CS in humans.
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Affiliation(s)
- Mariam Hebishy
- Department of Gerontology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium
| | - Cabirou Mounchili Shintouo
- Department of Gerontology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium; Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium; Department of Biochemistry and Molecular Biology, Faculty of Science, University of Buea, P.O. Box 63 Buea, Cameroon
| | - Ines Dufait
- Department of Radiotherapy, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101, Brussels 1090, Belgium
| | - Florence Debacq-Chainiaux
- Research Unit on Cellular Biology (URBC), Department of Biology, University of Namur, Rue de Bruxelles, 61, Namur B-5000, Belgium
| | - Ivan Bautmans
- Department of Gerontology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium; Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium
| | - Rose Njemini
- Department of Gerontology, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium; Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, Brussels 1090, Belgium.
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6
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Bartolo ND, Mortimer N, Manter MA, Sanchez N, Riley M, O'Malley TT, Hooker JM. Identification and Prioritization of PET Neuroimaging Targets for Microglial Phenotypes Associated with Microglial Activity in Alzheimer's Disease. ACS Chem Neurosci 2022; 13:3641-3660. [PMID: 36473177 DOI: 10.1021/acschemneuro.2c00607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Activation of microglial cells accompanies the progression of many neurodegenerative disorders, including Alzheimer's disease (AD). Development of molecular imaging tools specific to microglia can help elucidate the mechanism through which microglia contribute to the pathogenesis and progression of neurodegenerative disorders. Through analysis of published genetic, transcriptomic, and proteomic data sets, we identified 19 genes with microglia-specific expression that we then ranked based on association with the AD characteristics, change in expression, and potential druggability of the target. We believe that the process we used to identify and rank microglia-specific genes is broadly applicable to the identification and evaluation of targets in other disease areas and for applications beyond molecular imaging.
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Affiliation(s)
- Nicole D Bartolo
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, Massachusetts 02129, United States
| | - Niall Mortimer
- Human Biology and Data Science, Eisai Center for Genetics Guided Dementia Discovery, 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Mariah A Manter
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, Massachusetts 02129, United States
| | - Nicholas Sanchez
- Human Biology and Data Science, Eisai Center for Genetics Guided Dementia Discovery, 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Misha Riley
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, Massachusetts 02129, United States
| | - Tiernan T O'Malley
- Human Biology and Data Science, Eisai Center for Genetics Guided Dementia Discovery, 35 Cambridgepark Drive, Cambridge, Massachusetts 02140, United States
| | - Jacob M Hooker
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 149 13th Street, Charlestown, Massachusetts 02129, United States
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7
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Effect of prior exposure to enriched environment on cellular apoptosis after experimental stroke. Mol Biol Rep 2022; 49:6541-6551. [PMID: 35507114 DOI: 10.1007/s11033-022-07494-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Growing evidence, including our previous studies, has demonstrated that an enriched environment (EE) after cerebral ischemia/reperfusion (I/R) injury improves neurofunctional recovery in rats. However, whether EE exposure prior to injury could play a neuroprotective role in stroke has seldom been investigated. In this study, we examined the neuroprotective effects of prior exposure to EE and investigated the potential anti-apoptotic effect in rats after cerebral I/R injury. METHODS AND RESULTS Rats were housed in EE or standard conditions (SC) for four weeks and then randomly assigned to receive 120 min of right middle cerebral occlusion (MCAO) or sham operation. Based on the housing environment and the procedure they underwent, the rats were divided into the following three groups: preischemic EE + MCAO (PIEE), preischemic SC + MCAO (PISC) and preischemic SC + sham-operated (sham). Forty-eight hours after the operation, the rats were subjected to a series of assessments. We found that prior exposure to EE improved functional outcomes, reduced infarct volume and attenuated histological damage. The apoptotic cell numbers in the ischemic penumbra cortex decreased in PIEE group, as did the p53, PUMA, Bax and AIF expression levels. The protein expression of Bcl-2 and HSP70 was increased in the PIEE group compared with the PISC group. PIEE treatment also significantly increased the BDNF level in the ischemic penumbra. In addition, inhibition of cell apoptosis and upregulation of BDNF expression levels were correlated with the improved functional recovery of MCAO rats. CONCLUSIONS These findings suggest that EE preconditioning inhibited cell apoptosis and upregulated BDNF expression in the penumbra of MCAO rats, which may contribute to neurofunctional recovery after stroke.
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Yusof NA, Masnoddin M, Charles J, Thien YQ, Nasib FN, Wong CMVL, Abdul Murad AM, Mahadi NM, Bharudin I. Can heat shock protein 70 (HSP70) serve as biomarkers in Antarctica for future ocean acidification, warming and salinity stress? Polar Biol 2022. [DOI: 10.1007/s00300-022-03006-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractThe Antarctic Peninsula is one of the fastest-warming places on Earth. Elevated sea water temperatures cause glacier and sea ice melting. When icebergs melt into the ocean, it “freshens” the saltwater around them, reducing its salinity. The oceans absorb excess anthropogenic carbon dioxide (CO2) causing decline in ocean pH, a process known as ocean acidification. Many marine organisms are specifically affected by ocean warming, freshening and acidification. Due to the sensitivity of Antarctica to global warming, using biomarkers is the best way for scientists to predict more accurately future climate change and provide useful information or ecological risk assessments. The 70-kilodalton (kDa) heat shock protein (HSP70) chaperones have been used as biomarkers of stress in temperate and tropical environments. The induction of the HSP70 genes (Hsp70) that alter intracellular proteins in living organisms is a signal triggered by environmental temperature changes. Induction of Hsp70 has been observed both in eukaryotes and in prokaryotes as response to environmental stressors including increased and decreased temperature, salinity, pH and the combined effects of changes in temperature, acidification and salinity stress. Generally, HSP70s play critical roles in numerous complex processes of metabolism; their synthesis can usually be increased or decreased during stressful conditions. However, there is a question as to whether HSP70s may serve as excellent biomarkers in the Antarctic considering the long residence time of Antarctic organisms in a cold polar environment which appears to have greatly modified the response of heat responding transcriptional systems. This review provides insight into the vital roles of HSP70 that make them ideal candidates as biomarkers for identifying resistance and resilience in response to abiotic stressors associated with climate change, which are the effects of ocean warming, freshening and acidification in Antarctic organisms.
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Nutraceuticals in HIV and COVID-19-Related Neurological Complications: Opportunity to Use Extracellular Vesicles as Drug Delivery Modality. BIOLOGY 2022; 11:biology11020177. [PMID: 35205044 PMCID: PMC8869385 DOI: 10.3390/biology11020177] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/20/2022] [Accepted: 01/20/2022] [Indexed: 12/03/2022]
Abstract
Simple Summary In this review, we discuss the potential use of extracellular vesicles (EVs) to deliver dietary supplements to the brain to reduce brain complications associated with HIV, COVID-19, and other brain disorders. Brain-related complications affect people with HIV and COVID-19 alike. Moreover, since HIV patients are at a higher risk of contracting COVID-19, their neurological problems can be exacerbated by COVID-19. The use of dietary supplements together with available treatment options has been shown to reduce the severity of infections. However, these treatments are not chemically compatible with the body’s blood–brain barrier defense mechanism. Therefore, a viable delivery method is needed to deliver drugs and nutraceuticals to the brain in HIV and COVID-19 comorbid patients. Abstract People living with HIV/AIDS (PLWHA) are at an increased risk of severe and critical COVID-19 infection. There is a steady increase in neurological complications associated with COVID-19 infection, exacerbating HIV-associated neurocognitive disorders (HAND) in PLWHA. Nutraceuticals, such as phytochemicals from medicinal plants and dietary supplements, have been used as adjunct therapies for many disease conditions, including viral infections. Appropriate use of these adjunct therapies with antiviral proprieties may be beneficial in treating and/or prophylaxis of neurological complications associated with these co-infections. However, most of these nutraceuticals have poor bioavailability and cannot cross the blood–brain barrier (BBB). To overcome this challenge, extracellular vesicles (EVs), biological nanovesicles, can be used. Due to their intrinsic features of biocompatibility, stability, and their ability to cross BBB, as well as inherent homing capabilities, EVs hold immense promise for therapeutic drug delivery to the brain. Therefore, in this review, we summarize the potential role of different nutraceuticals in reducing HIV- and COVID-19-associated neurological complications and the use of EVs as nutraceutical/drug delivery vehicles to treat HIV, COVID-19, and other brain disorders.
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Cianciosi D, Forbes-Hernández TY, Regolo L, Alvarez-Suarez JM, Quinzi D, Sargenti A, Bai W, Tian L, Giampieri F, Battino M. Manuka honey in combination with 5-Fluorouracil decreases physical parameters of colonspheres enriched with cancer stem-like cells and reduces their resistance to apoptosis. Food Chem 2021; 374:131753. [PMID: 34883427 DOI: 10.1016/j.foodchem.2021.131753] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 11/12/2021] [Accepted: 11/29/2021] [Indexed: 12/11/2022]
Abstract
The aim of the present work was to evaluate the in vitro effect of Manuka honey and its combination with 5-Fu, the most common drug used in the treatment of colon cancer, on the morphological and physical parameters of colonspheres enriched with cancer stem-like cells deriving from HCT-116 colon adenocarcinoma cell line and on the apoptosis rate. Manuka honey, alone and more in combination with 5-Fu, reduced the weight, the diameter and mass density of the spheroids and induced apoptosis through the downregulation of many apoptosis inhibitors, including IAPs (Livin, Survivin, XIAP), IGFs (IGF-I, IGF-II and IGF-IR) and HSPs (HSP-27, HSP-60 and HSP-70). These results led to a reduction in the survival ability of cancer stem-like cells, as well as to a chemosensitizing effect of honey towards 5-Fu, considering that apoptosis resistance is one of the main causes of cancer stem-like cells chemoresistance.
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Affiliation(s)
- Danila Cianciosi
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | | | - Lucia Regolo
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - José M Alvarez-Suarez
- Departamento de Ingeniería en Alimentos. Colegio de Ciencias e Ingenierías. Universidad San Francisco de Quito, Quito, Ecuador 170157, Ecuador; Instituto de Investigaciones en Biomedicina iBioMed, Universidad San Francisco de Quito, Quito, 170157, Ecuador; King Fahd Medical Research Center, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Denise Quinzi
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy
| | - Azzurra Sargenti
- CellDynamics isrl, Via Piero Gobetti, 101, 40129, Bologna, Italy
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Lingmin Tian
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, PR China
| | - Francesca Giampieri
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy; Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia; Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander 39011, Spain.
| | - Maurizio Battino
- Department of Clinical Sciences, Polytechnic University of Marche, Ancona 60131, Italy; Research Group on Food, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander 39011, Spain; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang, China.
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11
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Shen Y, Zhou T, Liu X, Liu Y, Li Y, Zeng D, Zhong W, Zhang M. Sevoflurane-Induced miR-211-5p Promotes Neuronal Apoptosis by Inhibiting Efemp2. ASN Neuro 2021; 13:17590914211035036. [PMID: 34730432 PMCID: PMC8819752 DOI: 10.1177/17590914211035036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Sevoflurane exposure can result in serious neurological side effects including neuronal
apoptosis and cognitive impairment. Although the microRNA miR-211-5p is profoundly
upregulated following sevoflurane exposure in neonatal rodent models, the impact of
miR-211-5p on neuronal apoptosis and cognitive impairment postsevoflurane exposure has not
yet been elucidated. Here, we found that sevoflurane upregulated miR-211-5p and
downregulated EGF-Containing Fibulin Extracellular Matrix Protein 2 (Efemp2, Fibulin-4)
levels in vitro and in vivo. Sevoflurane's effect on miR-211-5p expression was based on
enhancing primary miR-211 transcription. miR-211-5p targets Efemp2's mRNA 3′-untranslated
region, reducing Efemp2 expression. RNA immunoprecipitation revealed significant
enrichment of the miR-211-5p:Efemp2 mRNA dyad in the RNA-induced silencing complex.
miR-211-5p mimics downregulated Efemp2, leading to phosphorylation of Smad2 and Smad3,
upregulation of pro-apoptotic Bim, and mitochondrial release of allograft inflammatory
factor 1 and cytochrome C. In contrast, miR-211-5p hairpin inhibitor (AntimiR-211-5p)
negatively regulated this apoptotic pathway and reduced neuronal apoptosis in an
Efemp2-dependent manner. Sevoflurane-exposed mice administered AntimiR-211-5p displayed
reduced cortical apoptosis levels and near-term cognitive impairment. In conclusion,
sevoflurane-induced miR-211-5p promotes neuronal apoptosis via Efemp2 inhibition. Summary
statement: This study revealed the significance of sevoflurane-induced increases in
miR-211-5p on the promotion of neuronal apoptosis via inhibition of Efemp2 and its
downstream targets.
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Affiliation(s)
- Yousu Shen
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Tao Zhou
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Xiaobing Liu
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Yanlong Liu
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Yaqi Li
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Dewu Zeng
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Wensheng Zhong
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
| | - Mingsheng Zhang
- Department of Anaesthesiology, 159384Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Jiangxi, China
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12
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Adetula AA, Fan X, Zhang Y, Yao Y, Yan J, Chen M, Tang Y, Liu Y, Yi G, Li K, Tang Z. Landscape of tissue-specific RNA Editome provides insight into co-regulated and altered gene expression in pigs ( Sus-scrofa). RNA Biol 2021; 18:439-450. [PMID: 34314293 PMCID: PMC8677025 DOI: 10.1080/15476286.2021.1954380] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/02/2021] [Accepted: 07/07/2021] [Indexed: 11/08/2022] Open
Abstract
RNA editing generates genetic diversity in mammals by altering amino acid sequences, miRNA targeting site sequences, influencing the stability of targeted RNAs, and causing changes in gene expression. However, the extent to which RNA editing affect gene expression via modifying miRNA binding site remains unexplored. Here, we first profiled the dynamic A-to-I RNA editome across tissues of Duroc and Luchuan pigs. The RNA editing events at the miRNA binding sites were generated. The biological function of the differentially edited gene in skeletal muscle was further characterized in pig muscle-derived satellite cells. RNA editome analysis revealed a total of 171,909 A-to-I RNA editing sites (RESs), and examination of its features showed that these A-to-I editing sites were mainly located in SINE retrotransposons PRE-1/Pre0_SS element. Analysis of differentially edited sites (DESs) revealed a total of 4,552 DESs across tissues between Duroc and Luchuan pigs, and functional category enrichment analysis of differentially edited gene (DEG) sets highlighted a significant association and enrichment of tissue-developmental pathways including TGF-beta, PI3K-Akt, AMPK, and Wnt signaling pathways. Moreover, we found that RNA editing events at the miRNA binding sites in the 3'-UTR of HSPA12B mRNA could prevent the miRNA-mediated mRNA downregulation of HSPA12B in the muscle-derived satellite (MDS) cell, consistent with the results obtained from the Luchuan skeletal muscle. This study represents the most systematic attempt to characterize the significance of RNA editing in regulating gene expression, particularly in skeletal muscle, constituting a new layer of regulation to understand the genetic mechanisms behind phenotype variance in animals.Abbreviations: A-to-I: Adenosine-to-inosine; ADAR: Adenosine deaminase acting on RNA; RES: RNA editing site; DEG: Differentially edited gene; DES: Differentially edited site; FDR: False discovery rate; GO: Gene Ontology; KEGG: Kyoto Encyclopaedia of Genes and Genomes; MDS cell: musclederived satellite cell; RPKM: Reads per kilobase of exon model in a gene per million mapped reads; UTR: Untranslated coding regions.
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Affiliation(s)
- Adeyinka A. Adetula
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Xinhao Fan
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yongsheng Zhang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yilong Yao
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Junyu Yan
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Muya Chen
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yijie Tang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Yuwen Liu
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Kunpeng Institute of Modern Agriculture at Foshan, Foshan, China
- GuangXi Engineering Centre for Resource Development of Bama Xiang Pig, Bama, China
| | - Guoqiang Yi
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Kunpeng Institute of Modern Agriculture at Foshan, Foshan, China
- GuangXi Engineering Centre for Resource Development of Bama Xiang Pig, Bama, China
| | - Kui Li
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhonglin Tang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
- Group of Pig Genome and Design Breeding, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Kunpeng Institute of Modern Agriculture at Foshan, Foshan, China
- GuangXi Engineering Centre for Resource Development of Bama Xiang Pig, Bama, China
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13
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Yusof NA, Charles J, Wan Mahadi WNS, Abdul Murad AM, Mahadi NM. Characterization of Inducible HSP70 Genes in an Antarctic Yeast, Glaciozyma antarctica PI12, in Response to Thermal Stress. Microorganisms 2021; 9:microorganisms9102069. [PMID: 34683390 PMCID: PMC8540855 DOI: 10.3390/microorganisms9102069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 11/17/2022] Open
Abstract
The induction of highly conserved heat shock protein 70 (HSP70) is often related to a cellular response due to harmful stress or adverse life conditions. In this study, we determined the expression of Hsp70 genes in the Antarctic yeast, Glaciozyma antarctica, under different several thermal treatments for several exposure periods. The main aims of the present study were (1) to determine if stress-induced Hsp70 could be used to monitor the exposure of the yeast species G. antarctica to various types of thermal stress; (2) to analyze the structures of the G. antarctica HSP70 proteins using comparative modeling; and (3) to evaluate the relationship between the function and structure of HSP70 in G. antarctica. In this study, we managed to amplify and clone 2 Hsp70 genes from G. antarctica named GaHsp70-1 and GaHsp70-2. The cells of G. antarctica expressed significantly inducible Hsp70 genes after the heat and cold shock treatments. Interestingly, GaHsp70-1 showed 2–6-fold higher expression than GaHsp70-2 after the heat and cold exposure. ATP hydrolysis analysis on both G. antarctica HSP70s proved that these psychrophilic chaperones can perform activities in a wide range of temperatures, such as at 37, 25, 15, and 4 °C. The 3D structures of both HSP70s revealed several interesting findings, such as the substitution of a β-sheet to loop in the N-terminal ATPase binding domain and some modest residue substitutions, which gave the proteins the flexibility to function at low temperatures and retain their functional activity at ambient temperatures. In conclusion, both analyzed HSP70s played important roles in the physiological adaptation of G. antarctica.
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Affiliation(s)
- Nur Athirah Yusof
- Biotechnology Research Institute, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia; (J.C.); (W.N.S.W.M.)
- Correspondence: ; Tel.: +60-19-605-1219
| | - Jennifer Charles
- Biotechnology Research Institute, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia; (J.C.); (W.N.S.W.M.)
| | - Wan Nur Shuhaida Wan Mahadi
- Biotechnology Research Institute, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia; (J.C.); (W.N.S.W.M.)
| | - Abdul Munir Abdul Murad
- Faculty of Science and Technology, School of Biosciences and Biotechnology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia;
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14
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Russo L, Mascanzoni F, Farina B, Dolga AM, Monti A, Caporale A, Culmsee C, Fattorusso R, Ruvo M, Doti N. Design, Optimization, and Structural Characterization of an Apoptosis-Inducing Factor Peptide Targeting Human Cyclophilin A to Inhibit Apoptosis Inducing Factor-Mediated Cell Death. J Med Chem 2021; 64:11445-11459. [PMID: 34338510 DOI: 10.1021/acs.jmedchem.1c00777] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Blocking the interaction between the apoptosis-inducing factor (AIF) and cyclophilin A (CypA) by the AIF fragment AIF(370-394) is protective against glutamate-induced neuronal cell death and brain injury in mice. Starting from AIF(370-394), we report the generation of the disulfide-bridged and shorter variant AIF(381-389) and its structural characterization by nuclear magnetic resonance (NMR) in the free and CypA-bound state. AIF(381-389) in both the free and bound states assumes a β-hairpin conformation similar to that of the fragment in the AIF protein and shows a highly reduced conformational flexibility. This peptide displays a similar in vitro affinity for CypA, an improved antiapoptotic activity in cells and an enhanced proteolytic stability compared to the parent peptide. The NMR-based 3D model of the AIF(381-389)/CypA complex provides a better understanding of the binding hot spots on both the peptide and the protein and can be exploited to design AIF/CypA inhibitors with improved pharmacokinetic and pharmacodynamics features.
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Affiliation(s)
- Luigi Russo
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "L. Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Fabiola Mascanzoni
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
| | - Biancamaria Farina
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
| | - Amalia Mihaela Dolga
- Institute of Pharmacology and Clinical Pharmacy, University of Marburg, 35043 Marburg, Germany.,Faculty of Science and Engineering, Groningen Research Institute of Pharmacy (GRIP), Research School of Behavioural and Cognitive Neurosciences (BCN), Department of Molecular Pharmacology, University of Groningen, 9713 AV Groningen, The Netherlands
| | - Alessandra Monti
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
| | - Andrea Caporale
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
| | - Carsten Culmsee
- Institute of Pharmacology and Clinical Pharmacy, University of Marburg, 35043 Marburg, Germany
| | - Roberto Fattorusso
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "L. Vanvitelli", Via Vivaldi 43, 81100 Caserta, Italy
| | - Menotti Ruvo
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
| | - Nunzianna Doti
- Institute of Biostructures and Bioimaging (IBB)-CNR, Via Mezzocannone, 16, 80134 Napoli, Italy
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15
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Oh JS, Park J, Kim K, Jeong HH, Oh YM, Choi S, Choi KH. HSP70-mediated neuroprotection by combined treatment of valproic acid with hypothermia in a rat asphyxial cardiac arrest model. PLoS One 2021; 16:e0253328. [PMID: 34138955 PMCID: PMC8211226 DOI: 10.1371/journal.pone.0253328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 06/03/2021] [Indexed: 11/18/2022] Open
Abstract
It has been reported that valproic acid (VPA) combined with therapeutic hypothermia can improve survival and neurologic outcomes in a rat asphyxial cardiac arrest model. However, neuroprotective mechanisms of such combined treatment of valproic acid with hypothermia remains unclear. We hypothesized that epigenetic regulation of HSP70 by histone acetylation could increase HSP70-mediated neuroprotection suppressed under hypothermia. Male Sprague-Dawley rats that achieved return of spontaneous circulation (ROSC) from asphyxial cardiac arrest were randomized to four groups: normothermia (37°C ± 1°C), hypothermia (33°C ± 1°C), normothermia + VPA (300 mg/kg IV initiated 5 minutes post-ROSC and infused over 20 min), and hypothermia + VPA. Three hours after ROSC, acetyl-histone H3 was highly expressed in VPA-administered groups (normothermia + VPA, hypothermia + VPA). Four hours after ROSC, HSP70 mRNA expression levels were significantly higher in normothermic groups (normothermia, normothermia + VPA) than in hypothermic groups (hypothermia, hypothermia + VPA). The hypothermia + VPA group showed significantly higher HSP70 mRNA expression than the hypothermia group. Similarly, at five hours after ROSC, HSP70 protein levels were significantly higher in normothermic groups than in hypothermic groups. HSP70 levels were significantly higher in the hypothermia + VPA group than in the hypothermia group. Only the hypothermia + VPA group showed significantly attenuated cleaved caspase-9 levels than the normothermia group. Hypothermia can attenuate the expression of HSP70 at transcriptional level. However, VPA administration can induce hyperacetylation of histone H3, leading to epigenetic transcriptional activation of HSP70 even in a hypothermic status. Combining VPA treatment with hypothermia may compensate for reduced activation of HSP70-mediated anti-apoptotic pathway.
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Affiliation(s)
- Joo Suk Oh
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Jungtaek Park
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Kiwook Kim
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Hyun Ho Jeong
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Young Min Oh
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Semin Choi
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
| | - Kyoung Ho Choi
- Department of Emergency Medicine, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu-si, Republic of Korea
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16
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Zhou J, Liu Q, Yang Z, Xie C, Ling L, Hu H, Cao Y, Huang Y, Hua Y. Rutin maintains redox balance to relieve oxidative stress induced by TBHP in nucleus pulposus cells. In Vitro Cell Dev Biol Anim 2021; 57:448-456. [PMID: 33909255 DOI: 10.1007/s11626-021-00581-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
Rutin is well known for its anti-inflammatory and antioxidant properties against oxidative stress. However, its protective function in nucleus pulposus cells (NPCs) remains unclear. This study was aimed to explore the effects of rutin on oxidative stress in NPCs. Primary NPCs were obtained from 1-mo-old SD rats. The NPCs were treated with tert-butyl hydrogen peroxide (TBHP) to obtain the oxidative stress, and different concentrations of rutin were used to observe its influence on the oxidative stress in NPCs. Fluorescent probe DCFH-DA was used to detect reactive oxide species (ROS). The antioxidant proteins and genes of heat shock protein 70 (HSP70), manganese superoxide dismutase (Mn-SOD), catalase, aggrecan and collagen II in NPCs were measured by western blot and real-time PCR. With the stimulation of TBHP, the content of ROS in NPCs increased significantly and showed solubility correlation. Rutin effectively reduced the accumulation of ROS in a dose-dependent manner. The antioxidant proteins of HSP70, Mn-SOD, and catalase and the matrix proteins of aggrecan and collagen II decreased remarkably with the stimulation of TBHP, while the matrix metalloproteinase-13 (MMP-13) significantly increased after TBHP intervention. Rutin boosted the expressions of the HSP70, Mn-SOD, and catalase, elevated the contents of aggrecan and collagen II, and inhibited the expression of MMP-13 in NPCs. The findings of this study suggested that rutin is able to reverse oxidative stress and maintain cellular function of NPCs, and it was indicated that rutin could be a possible therapeutic option for intervertebral disc degeneration.
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Affiliation(s)
- Jian Zhou
- Department of Spine and Joint Surgery, Nanchang Hongdu Hospital of TCM, Nanchang, Jiangxi, China
| | - Qi Liu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China.
| | - Zhou Yang
- Department of Orthopaedic Surgery, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Chuhai Xie
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China
| | - Long Ling
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China
| | - Hailan Hu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China
| | - Yanming Cao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China
| | - Yan Huang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, 250 Chang-gang-dong Road, Guangzhou, 510260, Guangdong, China
| | - Yue Hua
- School of Traditional Chinese Medicine, Southern Medical University, 1063 Shatai Road, Guangzhou, 510515, Guangdong, China.
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17
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Apoptosis-Inducing Factor, Protein Expression, and Apoptosis Changes with Glutamine in Podocytes Cells Exposed with Cisplatin. Vet Med Int 2021; 2021:5599452. [PMID: 33968358 PMCID: PMC8081609 DOI: 10.1155/2021/5599452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/02/2021] [Accepted: 04/08/2021] [Indexed: 01/16/2023] Open
Abstract
Cisplatin is a well-known chemotherapeutic drug. It is one of the most effective anticancer agents and is widely used for the treatment of several types of tumors. However, side effects in normal tissues and organs, such as nephrotoxicity that induces apoptosis in epithelial cells in the kidney, limit the use of cisplatin. Glutamine is a substrate for the synthesis of glutathione as an antioxidant and promotes HSP70 release, protecting cells from apoptosis induced by different stimuli. In the present study, we investigated the protective effect of glutamine on cisplatin nephrotoxicity in the kidney. Mice were divided into three groups such as a group of control (P0), a group of intraperitoneal injection of a single dose cisplatin 20 mg/kg BW at 7th day (P1), and a group of intravenous glutamine injection 100 mg/kg BW at days 1–7 and given an intraperitoneal injection of single dose cisplatin 20 mg/kg BW at 7th day (P2). Measurement of AIF expression and apoptotic cells was carried out by immunohistochemical methods. The number of AIF expressions and apoptotic cells is expressed in the Allred score. AIF expression result is as follows: P0: 3.29 ± 0.79, P1: 5.32 ± 0.68, and P2: 4.49 ± 0.47. Apoptosis result is as follows: P0: 3.04 ± 0.70, P1: 5.26 ± 0.53, and P2: 4.44 ± 0.41. There is a decreased expression of AIF on intravenous glutamine administration, followed by a decrease in apoptosis in the podocyte. In conclusion, glutamine administration might represent the treatment of nephrotoxic-induced cisplatin.
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18
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Mechanistic interplay of various mediators involved in mediating the neuroprotective effect of daphnetin. Pharmacol Rep 2021; 73:1220-1229. [PMID: 33860917 DOI: 10.1007/s43440-021-00261-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 03/11/2021] [Accepted: 04/02/2021] [Indexed: 12/20/2022]
Abstract
Daphnetin is a 7, 8 dihydroxy coumarin isolated from different medicinal plants of the Thymelaeaceae family and exhibits copious pharmacological activities including neuroprotection, anti-cancer, anti-malarial, anti-inflammatory, anti-parasitic and anti-arthritic activity. It has been proved to be an effective neuroprotective agent in several preclinical animal studies and cell line examinations. It is found to interact with different cellular mediators and signaling pathways to confer protection against neurodegeneration. The reactive oxygen species and inflammatory mediators are the major culprits of different neurodegenerative diseases. Oxidative stress activates the pro-apoptotic proteins and inhibits anti-apoptotic proteins, leading to neuronal cell death. Daphnetin restores cellular redox balance by upregulating the antioxidants level (GSH and SOD), anti-apoptotic protein (Bcl-2), as well as by reducing the levels of proinflammatory cytokines, executioner caspase-3, pro-apoptotic-Bax, and oxidative stress markers. Furthermore, activation of Nrf-2/HO-1 signaling and upregulation of HSP-70 governs the protection elicited by daphnetin against oxidative stress-induced neuronal apoptosis. Daphnetin modulated inhibition of JNK-MAPK, JAK-STAT, and TLR-4/NF-κB signaling pathways also contributed to its neuroprotective effect. The positive effects of daphnetin have been also related to its AChE, BChE, and BACE-1 inhibitory potential. The present review has been designed to explore the mechanistic interplay of various mediators in mediating the neuroprotective effects of daphnetin.
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19
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Said TM, Konz M, Paasch U. Comparison of Heat Shock Protein 70 Expression in Response to Different Non-Ablative Lasers: An In Vitro Study. Photobiomodul Photomed Laser Surg 2021; 39:221-228. [DOI: 10.1089/photob.2020.4970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Tamer M. Said
- Department of Dermatology, Venereology and Andrology, Alexandria Faculty of Medicine, Alexandria, Egypt
| | - Maximilian Konz
- Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Leipzig AöR und Medizinische Fakultät der Universität Leipzig, Leipzig, Germany
| | - Uwe Paasch
- Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Leipzig AöR und Medizinische Fakultät der Universität Leipzig, Leipzig, Germany
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20
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Activation of HSP70 impedes tert-butyl hydroperoxide (t-BHP)-induced apoptosis and senescence of human nucleus pulposus stem cells via inhibiting the JNK/c-Jun pathway. Mol Cell Biochem 2021; 476:1979-1994. [PMID: 33511552 DOI: 10.1007/s11010-021-04052-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 01/09/2021] [Indexed: 01/07/2023]
Abstract
The endogenous repair failure of degenerated intervertebral disk (IVD) is highly related to the exhaustion of nucleus pulposus stem cells (NPSCs). Excessive oxidative stress could induce apoptosis and senescence of NPSCs, thus, declining the quantity and quality of NPSCs. Heat shock protein 70 (HSP70) is a family of cytoprotective and antioxidative proteins. However, there is no report on the protective effects of HSP70 on oxidative stress-induced NPSC impairments and underlying mechanisms. In the present study, we treated NPSCs with tert-butyl hydroperoxide (t-BHP) in vitro to simulate an oxidative stress condition. HSP70 inducer TRC051384 was used to evaluate the cytoprotective effects of HSP70. The results suggested that HSP70 impeded t-BHP-mediated cell viability loss and protected the ultrastructure of NPSCs. Moreover, t-BHP could induce mitochondrial apoptosis and p53/p21-mediated senescence of NPSCs, both of which were significantly inhibited in HSP70 activation groups. Excessive oxidative stress and mitochondrial dysfunction reinforced each other and contributed to the cellular damage processes. HSP70 decreased reactive oxygen species (ROS) production, rescued mitochondrial membrane potential (MMP) collapse, and blocked ATP depletion. Finally, our data showed that HSP70 downregulated the JNK/c-Jun pathway. Taken together, activation of HSP70 could protect against t-BHP-induced NPSC apoptosis and senescence, thus, improving the quantity and quality of NPSCs. Therefore, HSP70 may be a promising therapeutic target for IVD degeneration.
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Sangaran PG, Ibrahim ZA, Chik Z, Mohamed Z, Ahmadiani A. Lipopolysaccharide Pre-conditioning Attenuates Pro-inflammatory Responses and Promotes Cytoprotective Effect in Differentiated PC12 Cell Lines via Pre-activation of Toll-Like Receptor-4 Signaling Pathway Leading to the Inhibition of Caspase-3/Nuclear Factor-κappa B Pathway. Front Cell Neurosci 2021; 14:598453. [PMID: 33551748 PMCID: PMC7862565 DOI: 10.3389/fncel.2020.598453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
Lipopolysacharide (LPS) pre-conditioning (PC), has been shown to exert protective effects against cytotoxic effects. Therefore, we hypothesized, the tolerance produced by LPS PC will be resulted by the alterations and modifications in gene and protein expression. With reference to the results of MTT assays, AO/PI staining, and Annexin V-FITC analyses of LPS concentration (0.7815-50 μg/mL) and time-dependent (12-72 h) experiments, the pre-exposure to 3 μg/mL LPS for 12 h protected the differentiated PC12 cells against 0.75 mg/mL LPS apoptotic concentration. LPS-treated cells secreted more inflammatory cytokines like IL-1α, IL-1β, IL-2, IL-3, IL-4, IL-6, IL-17, IFN-γ, and TNF-α than LPS-PC cells. The production of inflammatory mediators ROS and NO was also higher in the LPS-induced cells compared to LPS-PC cells. Conversely, anti-inflammatory cytokines (like IL-10, IL-13, CNTF, and IL-1Ra) were upregulated in the LPS-PC cells but not in the LPS-induced cells. Meanwhile, the LPS initiated caspase-8 which in turn activates effector caspase 3/7. When the activities of caspases in the LPS-induced cells were inhibited using z-VADfmk and z-DEVDfmk, the expressions of c-MYC and Hsp70 were increased, but p53 was reduced. The potential molecules associated with protective and destructive effect was measured by RT2 Profiler PCR array to elucidate the signaling pathways and suggested inhibition NF-κB/caspase-3 signaling pathway regulates the cytoprotective genes and proto-oncogenes. In conclusion, this study provides a basis for future research to better understand the molecular mechanism underlying LPS pre-conditioning /TLR4 pre-activation and its functional role in offering cytoprotective response in neuronal environment.
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Affiliation(s)
- Pushpa Gandi Sangaran
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zaridatul Aini Ibrahim
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zamri Chik
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Abolhassan Ahmadiani
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Evin, Tehran, Iran
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Effects of Dietary Zearalenone Exposure on the Growth Performance, Small Intestine Disaccharidase, and Antioxidant Activities of Weaned Gilts. Animals (Basel) 2020; 10:ani10112157. [PMID: 33228146 PMCID: PMC7699518 DOI: 10.3390/ani10112157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022] Open
Abstract
Simple Summary This study was conducted to assess the effects of Zearalenone (ZEA) exposure on the growth performance, small intestine disaccharidase, and antioxidant activities of weaned gilts. Twenty weaned gilts were randomly divided into control and ZEA treatment (1.04 mg/kg) groups. The data showed that 1.04 mg/kg ZEA in gilt’s diet could reduce the activity of disaccharidase enzymes and induce oxidative stress in the small intestine. Therefore, ZEA may induce intestinal injury by oxidative stress, or induce oxidative stress through intestinal injury, thus reducing the effect of animals on nutrient absorption. Abstract Zearalenone (ZEA) is a secondary metabolite with estrogenic effects produced by Fusarium fungi and mainly occurs as a contaminant of grains such as corn and wheat. ZEA, to which weaned gilts are extremely sensitive, is the main Fusarium toxin detected in corn–soybean meal diets. Our aim was to examine the effects of ZEA on the growth performance, intestinal disaccharidase activity, and anti-stress capacity of weaned gilts. Twenty 42-day-old healthy Duroc × Landrace × Large White weaned gilts (12.84 ± 0.26 kg) were randomly divided into control and treatment (diet containing 1.04 mg/kg ZEA) groups. The experiment included a 7-day pre-trial period followed by a 35-day test period, all gilts were euthanized and small intestinal samples were collected and subjected to immunohistochemical and western blot analyses. The results revealed that inclusion of 1.04 mg/kg ZEA in the diet significantly reduced the activities of lactase, sucrase, and maltase in the duodenum, jejunum, and ileum of gilts. Similarly, the activities of superoxide dismutase and glutathione peroxidase in the duodenum, jejunum, and ileum, and activities of catalase in the jejunum and ileum were reduced (p < 0.05). Conversely, the content of malondialdehyde in the duodenum, jejunum, and ileum, and the integrated optical density (IOD), IOD in single villi, and the mRNA and protein expression of heat shock protein 70 (Hsp70) were significantly increased (p < 0.05). The results of immunohistochemical analyses revealed that the positive reaction of Hsp70 in the duodenum, jejunum, and ileum of weaned gilts was enhanced in the ZEA treatment, compared with the control. The findings of this study indicate the inclusion of ZEA (1.04 mg/kg) in the diet of gilts reduced the activity of disaccharidase enzymes and induced oxidative stress in the small intestine, thereby indicating that ZEA would have the effect of reducing nutrient absorption in these animals.
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Njemini R, Verhaeghen K, Mets T, Weets I, Bautmans I. A Novel Bead-Based Immunoassay for the Measurement of Heat Shock Proteins 27 and 70. Pathogens 2020; 9:pathogens9110863. [PMID: 33105839 PMCID: PMC7690633 DOI: 10.3390/pathogens9110863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022] Open
Abstract
Heat shock proteins (HSPs) play an essential role in protecting proteins from denaturation and are implicated in diverse pathophysiological conditions like cardiovascular diseases, cancer, infections, and neurodegenerative diseases. Scientific evidence indicates that if HSP expression falls below a certain level, cells become sensitive to oxidative damage that accelerates protein aggregation diseases. On the other hand, persistently enhanced levels of HSP can lead to inflammatory and oncogenic changes. To date, although techniques for measuring HSPs exist, these assays are limited for use in specific sample types or are time consuming. Therefore, in the present study, we developed a single-molecule assay digital ELISA technology (Single Molecule Array—SIMOA) for the measurement of HSPs, which is time effective and can be adapted to measure multiple analytes simultaneously from a single sample. This technique combines two distinct HSP-specific antibodies that recognize different epitopes on the HSP molecule. A recombinant human HSP protein was used as the standard material. The assay performance characteristics were evaluated by repeated testing of samples spiked with HSP peptide at different levels. The limit of detection was 0.16 and 2 ng/mL for HSP27 and HSP70, respectively. The inter- and intra-assay coefficients of variation were less than 20% in all tested conditions for both HSPs. The HSP levels assayed after serial dilution of samples portrayed dilutional linearity (on average 109%, R2 = 0.998, p < 0.001, for HSP27 and 93%, R2 = 0.994, p < 0.001, for HSP70). A high linear response was also demonstrated with admixtures of plasma exhibiting relatively very low and high levels of HSP70 (R2 = 0.982, p < 0.001). Analyte spike recovery varied between 57% and 95%. Moreover, the relative HSP values obtained using Western blotting correlated significantly with HSP values obtained with the newly developed SIMOA assay (r = 0.815, p < 0.001 and r = 0.895, p < 0.001 for HSP70 and HSP27, respectively), indicating that our method is reliable. In conclusion, the assay demonstrates analytical performance for the accurate assessment of HSPs in various sample types and offers the advantage of a huge range of dilution linearity, indicating that samples with HSP concentration highly above the calibration range can be diluted into range without affecting the precision of the assay.
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Affiliation(s)
- Rose Njemini
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Correspondence: ; Tel.: +32-2-477-42-41; Fax: +32-2-477-63-64
| | - Katrijn Verhaeghen
- Laboratory of Clinical Chemistry and Radiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium; (K.V.); (I.W.)
| | - Tony Mets
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Department of Geriatric Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium;
| | - Ilse Weets
- Laboratory of Clinical Chemistry and Radiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium; (K.V.); (I.W.)
| | - Ivan Bautmans
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Department of Geriatric Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium;
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Sabirzhanov B, Makarevich O, Barrett JP, Jackson IL, Glaser EP, Faden AI, Stoica BA. Irradiation-Induced Upregulation of miR-711 Inhibits DNA Repair and Promotes Neurodegeneration Pathways. Int J Mol Sci 2020; 21:ijms21155239. [PMID: 32718090 PMCID: PMC7432239 DOI: 10.3390/ijms21155239] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/16/2020] [Accepted: 07/18/2020] [Indexed: 12/16/2022] Open
Abstract
Radiotherapy for brain tumors induces neuronal DNA damage and may lead to neurodegeneration and cognitive deficits. We investigated the mechanisms of radiation-induced neuronal cell death and the role of miR-711 in the regulation of these pathways. We used in vitro and in vivo models of radiation-induced neuronal cell death. We showed that X-ray exposure in primary cortical neurons induced activation of p53-mediated mechanisms including intrinsic apoptotic pathways with sequential upregulation of BH3-only molecules, mitochondrial release of cytochrome c and AIF-1, as well as senescence pathways including upregulation of p21WAF1/Cip1. These pathways of irradiation-induced neuronal apoptosis may involve miR-711-dependent downregulation of pro-survival genes Akt and Ang-1. Accordingly, we demonstrated that inhibition of miR-711 attenuated degradation of Akt and Ang-1 mRNAs and reduced intrinsic apoptosis after neuronal irradiation; likewise, administration of Ang-1 was neuroprotective. Importantly, irradiation also downregulated two novel miR-711 targets, DNA-repair genes Rad50 and Rad54l2, which may impair DNA damage responses, amplifying the stimulation of apoptotic and senescence pathways and contributing to neurodegeneration. Inhibition of miR-711 rescued Rad50 and Rad54l2 expression after neuronal irradiation, enhancing DNA repair and reducing p53-dependent apoptotic and senescence pathways. Significantly, we showed that brain irradiation in vivo persistently elevated miR-711, downregulated its targets, including pro-survival and DNA-repair molecules, and is associated with markers of neurodegeneration, not only across the cortex and hippocampus but also specifically in neurons isolated from the irradiated brain. Our data suggest that irradiation-induced miR-711 negatively modulates multiple pro-survival and DNA-repair mechanisms that converge to activate neuronal intrinsic apoptosis and senescence. Using miR-711 inhibitors to block the development of these regulated neurodegenerative pathways, thus increasing neuronal survival, may be an effective neuroprotective strategy.
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Affiliation(s)
- Boris Sabirzhanov
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
- Correspondence: (B.S.); (B.A.S.)
| | - Oleg Makarevich
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
| | - James P. Barrett
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
| | - Isabel L. Jackson
- Division of Translational Radiation Sciences (DTRS), Department of Radiation Oncology, University of Maryland School of Medicine, 685 West Baltimore Street, MSTF 700-B, Baltimore, MD 21201, USA;
| | - Ethan P. Glaser
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
| | - Alan I. Faden
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
| | - Bogdan A. Stoica
- Center for Shock Trauma Anesthesiology Research, Department of Anesthesiology, University of Maryland School of Medicine, 655 W. Baltimore Street, BRB 6-015, Baltimore, MD 21201, USA; (O.M.); (J.P.B.); (E.P.G.); (A.I.F.)
- VA Maryland Health Care System, Baltimore VA Medical Center, Baltimore, MD 21201, USA
- Correspondence: (B.S.); (B.A.S.)
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Identification of circRNA-Associated-ceRNA Networks Involved in Milk Fat Metabolism under Heat Stress. Int J Mol Sci 2020; 21:ijms21114162. [PMID: 32545169 PMCID: PMC7312917 DOI: 10.3390/ijms21114162] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 12/20/2022] Open
Abstract
Summer temperatures are generally high in Southern China, and cows are likely to suffer a heat stress reaction. Heat stress will have a negative impact on the performance of dairy cows; however, the mechanism by which high temperature affects lactation is not clear. CircRNA is a type of non-coding RNA discovered in recent years, which performs a crucial function in many biological activities. However, the effects of circRNA on lactation function of dairy cows under heat stress is unknown. The present study aimed to explore the expression levels of circRNA in the mammary gland tissue of cows under heat stress. Firstly, we collected blood and milk samples of summer and winter cows and evaluated lactation performance using serum indicators, milk production, and milk composition. Incorporating the calculation of the temperature and humidity index, we conformed the heat stress status of cows in summer. Heat stress increased the concentration of HSP70 and decreased the concentration of SOD and PRL. Heat stress not only reduced milk yield but also affected milk quality, with milk lactose and milk protein decreasing with increased temperature. The analysis of the fatty acid composition in summer milk found significantly reduced concentrations of unsaturated fatty acids, especially long-chain unsaturated fatty acids. Sequencing of the cow's mammary gland transcriptome revealed that compared to the appropriate temperature (ST) group, the heat stress (HS) group had a total of 2204 upregulated and 3501 downregulated transcripts. GO enrichment and KEGG pathway analysis showed that these genes were mainly related to milk fat metabolism. In addition, 19 upregulated and 19 downregulated circRNA candidates were found in response to heat stress. We used Pearson's test to establish the correlation of circRNA-mRNA and identified four pairs of circRNA-miRNA networks between four circRNAs, six miRNAs, and the CD36 gene. In this study, we revealed the possible role of circRNAs in lactation of dairy cows and identified that circRNA-miRNA-mRNA networks might exist in the cow's mammary glands, providing valuable experience for dairy lactation and milk quality.
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Protein Degradome of Spinal Cord Injury: Biomarkers and Potential Therapeutic Targets. Mol Neurobiol 2020; 57:2702-2726. [PMID: 32328876 DOI: 10.1007/s12035-020-01916-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/31/2020] [Indexed: 12/13/2022]
Abstract
Degradomics is a proteomics sub-discipline whose goal is to identify and characterize protease-substrate repertoires. With the aim of deciphering and characterizing key signature breakdown products, degradomics emerged to define encryptic biomarker neoproteins specific to certain disease processes. Remarkable improvements in structural and analytical experimental methodologies as evident in research investigating cellular behavior in neuroscience and cancer have allowed the identification of specific degradomes, increasing our knowledge about proteases and their regulators and substrates along with their implications in health and disease. A physiologic balance between protein synthesis and degradation is sought with the activation of proteolytic enzymes such as calpains, caspases, cathepsins, and matrix metalloproteinases. Proteolysis is essential for development, growth, and regeneration; however, inappropriate and uncontrolled activation of the proteolytic system renders the diseased tissue susceptible to further neurotoxic processes. In this article, we aim to review the protease-substrate repertoires as well as emerging therapeutic interventions in spinal cord injury at the degradomic level. Several protease substrates and their breakdown products, essential for the neuronal structural integrity and functional capacity, have been characterized in neurotrauma including cytoskeletal proteins, neuronal extracellular matrix glycoproteins, cell junction proteins, and ion channels. Therefore, targeting exaggerated protease activity provides a potentially effective therapeutic approach in the management of protease-mediated neurotoxicity in reducing the extent of damage secondary to spinal cord injury.
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Wu GC, Peng CK, Liao WI, Pao HP, Huang KL, Chu SJ. Melatonin receptor agonist protects against acute lung injury induced by ventilator through up-regulation of IL-10 production. Respir Res 2020; 21:65. [PMID: 32143642 PMCID: PMC7059294 DOI: 10.1186/s12931-020-1325-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 02/17/2020] [Indexed: 02/06/2023] Open
Abstract
Background It is well known that ventilation with high volume or pressure may damage healthy lungs or worsen injured lungs. Melatonin has been reported to be effective in animal models of acute lung injury. Melatonin exerts its beneficial effects by acting as a direct antioxidant and via melatonin receptor activation. However, it is not clear whether melatonin receptor agonist has a protective effect in ventilator-induced lung injury (VILI). Therefore, in this study, we determined whether ramelteon (a melatonin receptor agonist) can attenuate VILI and explore the possible mechanism for protection. Methods VILI was induced by high tidal volume ventilation in a rat model. The rats were randomly allotted into the following groups: control, control+melatonin, control+ramelteon, control+luzindole, VILI, VILI+luzindole, VILI + melatonin, VILI + melatonin + luzindole (melatonin receptor antagonist), VILI + ramelteon, and VILI + ramelteon + luzindole (n = 6 per group). The role of interleukin-10 (IL-10) in the melatonin- or ramelteon-mediated protection against VILI was also investigated. Results Ramelteon treatment markedly reduced lung edema, serum malondialdehyde levels, the concentration of inflammatory cytokines in bronchoalveolar lavage fluid (BALF), NF-κB activation, iNOS levels, and apoptosis in the lung tissue. Additionally, ramelteon treatment significantly increased heat shock protein 70 expression in the lung tissue and IL-10 levels in BALF. The protective effect of ramelteon was mitigated by the administration of luzindole or an anti-IL-10 antibody. Conclusions Our results suggest that a melatonin receptor agonist has a protective effect against VILI, and its protective mechanism is based on the upregulation of IL-10 production.
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Affiliation(s)
- Geng-Chin Wu
- The Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan.,Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - Chung-Kan Peng
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wen-I Liao
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-Ping Pao
- The Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Kun-Lun Huang
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. .,Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan.
| | - Shi-Jye Chu
- Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No. 325, Section 2, Chenggong Road, Neihu, Taipei, 114, Taiwan.
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Huang L, Wang Y, Bai J, Yang Y, Wang F, Feng Y, Zhang R, Li F, Zhang P, Lv N, Lei L, Hu J, He A. Blockade of HSP70 by VER-155008 synergistically enhances bortezomib-induced cytotoxicity in multiple myeloma. Cell Stress Chaperones 2020; 25:357-367. [PMID: 32026316 PMCID: PMC7058745 DOI: 10.1007/s12192-020-01078-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
Proteasome inhibitor bortezomib is one of the most effective drugs currently available for the treatment of multiple myeloma (MM). However, the intrinsic and acquired resistance to bortezomib can limit its effectiveness. The activation of heat shock response has been characterized as a potential resistance mechanism protecting MM cells from bortezomib-induced cell death. In this study, in response to bortezomib therapy, we discovered that HSP70 is one of the most substantially upregulated heat shock proteins. In order to further explore approaches to sensitizing bortezomib-based treatment for MM, we investigated whether targeting HSP70 using a specific inhibitor VER-155008 combined with bortezomib could overcome the acquired resistance in MM. We found that HSP70 inhibitor VER-155008 alone significantly decreased MM cell viability. Moreover, the combination of VER-155008 and bortezomib synergistically induced MM cell apoptosis markedly in vitro. Notably, the combined treatment was found to increase the cleavage of PARP, an early marker of chemotherapy-induced apoptosis. Importantly, the reduction of anti-apoptotic Bcl-2 family member Bcl-2, Bcl-xL, and Mcl-1 and the induction of pro-apoptotic Bcl-2 family member BH3-only protein NOXA and Bim were confirmed to be tightly associated with the synergism. Finally, the ER stress marker CHOP (CCAAT-enhancer binding protein homologous protein), which can cause transcriptional activation of genes involved in cell apoptosis, was markedly induced by both VER-155008 and bortezomib. Taken together, our finding of a strong synergistic interaction between VER-155008 and bortezomib may support for combination therapy in MM patients in the future.
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Affiliation(s)
- Lingjuan Huang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Department of General Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
- School of General Medicine Xi'an Medical University, Xi'an, Shaanxi, China
| | - Yanmeng Wang
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Ju Bai
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yun Yang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fangxia Wang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yuandong Feng
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ru Zhang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fangmei Li
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Peihua Zhang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Nan Lv
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Lei Lei
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jinsong Hu
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
- Key Laboratory of Environment and Genes Related to Diseases, (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi, China.
| | - Aili He
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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Janewanthanakul S, Supungul P, Tang S, Tassanakajon A. Heat shock protein 70 from Litopenaeus vannamei (LvHSP70) is involved in the innate immune response against white spot syndrome virus (WSSV) infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 102:103476. [PMID: 31445053 DOI: 10.1016/j.dci.2019.103476] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 06/10/2023]
Abstract
White spot syndrome (WSS) caused by white spot syndrome virus (WSSV) is a severe infectious disease in shrimp aquaculture. To find effective therapeutics to control WSSV, it is indispensable to understand the innate immune responses of shrimp to WSSV infection. Previous report demonstrated that the Litopenaeus vannamei heat shock protein 70 (LvHSP70) could induce shrimp innate immunity against bacterial infection. Herein, we further investigate the role of LvHSP70 in anti-WSSV infection. The temporal expression of LvHSP70 was significantly upregulated 2.5- and 1.5-fold at 6 and 24 h post systemic WSSV infection suggesting that the LvHSP70 was a WSSV responsive gene. The recombinant protein of LvHSP70 (rLvHSP70) was produced in an Escherichia coli system and its effect in protection against WSSV infection was investigated. Intramuscularly injection of juvenile shrimp with 1 nmol of rLvHSP70 could significantly prolong 50% mortality of WSSV-infected shrimp from 3 days to 5 days as compared to the control group injected with bovine serum albumin (BSA). Consistently, the injection of rLvHSP70 resulted in 24-fold, 20-fold and 100-fold decrease in the viral copy number after 6, 12 and 24 h post injection, respectively, compared to the control shrimp injected with BSA. Interestingly, it was found that the rLvHSP70 enhanced the expression of the key gene in the prophenoloxidase (proPO) activating system, LvproPO, but reduced the expression of Lvcaspase2 and LvIAP in WSSV-infected shrimp. These results suggested that the LvHSP70 is an important molecule involved in antiviral defense in shrimp presumably via modulating the proPO system and apoptosis.
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Affiliation(s)
- Suphamon Janewanthanakul
- Center of Excellence for Molecular Biology and Genomics of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Premruethai Supungul
- Aquatic Molecular Genetics and Biotechnology Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), Nation Science and Technology Development Agency (NSTDA), 113 Paholyothin Rd., Klong Luang, Pathum Thani, 12120, Thailand.
| | - Sureerat Tang
- Aquatic Molecular Genetics and Biotechnology Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), Nation Science and Technology Development Agency (NSTDA), 113 Paholyothin Rd., Klong Luang, Pathum Thani, 12120, Thailand
| | - Anchalee Tassanakajon
- Center of Excellence for Molecular Biology and Genomics of Shrimp, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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Mays CE, Armijo E, Morales R, Kramm C, Flores A, Tiwari A, Bian J, Telling GC, Pandita TK, Hunt CR, Soto C. Prion disease is accelerated in mice lacking stress-induced heat shock protein 70 (HSP70). J Biol Chem 2019; 294:13619-13628. [PMID: 31320473 DOI: 10.1074/jbc.ra118.006186] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 06/28/2019] [Indexed: 01/09/2023] Open
Abstract
Prion diseases are a group of incurable neurodegenerative disorders that affect humans and animals via infection with proteinaceous particles called prions. Prions are composed of PrPSc, a misfolded version of the cellular prion protein (PrPC). During disease progression, PrPSc replicates by interacting with PrPC and inducing its conversion to PrPSc As PrPSc accumulates, cellular stress mechanisms are activated to maintain cellular proteostasis, including increased protein chaperone levels. However, the exact roles of several of these chaperones remain unclear. Here, using various methodologies to monitor prion replication (i.e. protein misfolding cyclic amplification and cellular and animal infectivity bioassays), we studied the potential role of the molecular chaperone heat shock protein 70 (HSP70) in prion replication in vitro and in vivo Our results indicated that pharmacological induction of the heat shock response in cells chronically infected with prions significantly decreased PrPSc accumulation. We also found that HSP70 alters prion replication in vitro More importantly, prion infection of mice lacking the genes encoding stress-induced HSP70 exhibited accelerated prion disease progression compared with WT mice. In parallel with HSP70 being known to respond to endogenous and exogenous stressors such as heat, infection, toxicants, and ischemia, our results indicate that HSP70 may also play an important role in suppressing or delaying prion disease progression, opening opportunities for therapeutic intervention.
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Affiliation(s)
- Charles E Mays
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030
| | - Enrique Armijo
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030.,Facultad de Medicina, Universidad de los Andes, Av. San Carlos de Apoquindo, 2200 Las Condes, Santiago, Chile
| | - Rodrigo Morales
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030
| | - Carlos Kramm
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030.,Facultad de Medicina, Universidad de los Andes, Av. San Carlos de Apoquindo, 2200 Las Condes, Santiago, Chile
| | - Andrea Flores
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030
| | - Anjana Tiwari
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030
| | - Jifeng Bian
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523
| | - Glenn C Telling
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado 80523
| | - Tej K Pandita
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030
| | - Clayton R Hunt
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030
| | - Claudio Soto
- Mitchell Center for Alzheimer's Disease and Related Brain Disorders, Department of Neurology, University of Texas McGovern Medical School, Houston, Texas 77030 .,Facultad de Medicina, Universidad de los Andes, Av. San Carlos de Apoquindo, 2200 Las Condes, Santiago, Chile
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31
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Liu T, Han Y, Liu Y, Zhao H. Genomewide identification and analysis of heat-shock proteins 70/110 to reveal their potential functions in Chinese soft-shelled turtle Pelodiscus sinensis. Ecol Evol 2019; 9:6968-6985. [PMID: 31467669 PMCID: PMC6712388 DOI: 10.1002/ece3.5264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 01/28/2023] Open
Abstract
Heat-shock proteins 70/110 (Hsp70/110) are vital molecular chaperones and stress proteins whose expression and production are generally induced by extreme temperatures or external stresses. The Hsp70/110 family is largely conserved in diverse animals. Although many reports have studied and elaborated on the characteristics of Hsp70/110 in various species, the systematic identification and analysis of Hsp70/110 are still poor in turtles. In this study, a genomewide search was performed, and 18 candidate PsHSP70/110 family genes were identified in Chinese soft-shelled turtle, Pelodiscus sinensis. These PsHSP70/110 proteins contained the conserved "heat shock protein 70" domain. Phylogenetic analysis of PsHSP70/110 and their homologs revealed evolutionary conservation of Hsp70/110 across different species. Tissue-specific expression analysis showed that these PsHSP70/110 genes were differentially expressed in different tissues of P. sinensis. Furthermore, to examine the putative biological functions of PsHSP70/110, the dynamic expression of PsHSP70/110 genes was analyzed in the testis of P. sinensis during seasonal spermatogenesis following germ cell apoptosis. Notably, genes such as PsHSPA1B-L, PsHSPA2, and PsHSPA8 were significantly upregulated in P. sinensis testes along with a seasonal decrease in apoptosis. Protein interaction prediction revealed that PsHSPA1B-L, PsHSPA2, and PsHSPA8 may interact with each other and participate in the MAPK signaling pathway. Moreover, immunohistochemical analysis showed that PsHSPA1B-L, PsHSPA2, and PsHSPA8 protein expression was associated with seasonal temperature variation. The expression profiling and interaction relationships of the PsHSPA1B-L, PsHSPA2, and PsHSPA8 proteins implied their potential roles in inhibiting the apoptosis of germ cells in P. sinensis. These results provide insights into PsHSP70/110 functions and will serve as a rich resource for further investigation of HSP70/110 family genes in P. sinensis and other turtles.
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Affiliation(s)
- Tengfei Liu
- College of Veterinary MedicineNorthwest A&F UniversityYanglingChina
| | - Yawen Han
- College of Veterinary MedicineNorthwest A&F UniversityYanglingChina
| | - Ye Liu
- College of Veterinary MedicineNorthwest A&F UniversityYanglingChina
| | - Huiying Zhao
- College of Veterinary MedicineNorthwest A&F UniversityYanglingChina
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Effects of Liuwei Dihuang Decoction (Yukmijihwang-tang) on Physical Fatigue by Regulating Neurotransmitters in Brain. Chin J Integr Med 2019; 26:839-844. [DOI: 10.1007/s11655-019-3157-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2018] [Indexed: 11/25/2022]
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33
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Miller DJ, Fort PE. Heat Shock Proteins Regulatory Role in Neurodevelopment. Front Neurosci 2018; 12:821. [PMID: 30483047 PMCID: PMC6244093 DOI: 10.3389/fnins.2018.00821] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/22/2018] [Indexed: 01/20/2023] Open
Abstract
Heat shock proteins (Hsps) are a large family of molecular chaperones that are well-known for their roles in protein maturation, re-folding and degradation. While some Hsps are constitutively expressed in certain regions, others are rapidly upregulated in the presence of stressful stimuli. Numerous stressors, including hyperthermia and hypoxia, can induce the expression of Hsps, which, in turn, interact with client proteins and co-chaperones to regulate cell growth and survival. Such interactions must be tightly regulated, especially at critical points during embryonic and postnatal development. Hsps exhibit specific patterns of expression consistent with a spatio-temporally regulated role in neurodevelopment. There is also growing evidence that Hsps may promote or inhibit neurodevelopment through specific pathways regulating cell differentiation, neurite outgrowth, cell migration, or angiogenesis. This review will examine the regulatory role that these individual chaperones may play in neurodevelopment, and will focus specifically on the signaling pathways involved in the maturation of neuronal and glial cells as well as the underlying vascular network.
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Affiliation(s)
- David J Miller
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, United States.,Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States
| | - Patrice E Fort
- Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI, United States.,Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States
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Sun F, Jiang X, Wang X, Bao Y, Feng G, Liu H, Kou X, Zhu Q, Jiang L, Yang Y. Vincristine ablation of Sirt2 induces cell apoptosis and mitophagy via Hsp70 acetylation in MDA-MB-231 cells. Biochem Pharmacol 2018; 162:142-153. [PMID: 30352233 DOI: 10.1016/j.bcp.2018.10.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/17/2018] [Indexed: 02/07/2023]
Abstract
Cancer cells are continuously challenged by adverse environmental stress and adopt diverse strategies to survive. Hsp70 plays pivotal roles in invasion, migration, drug resistance, and the survival of tumor cells. Hsp70 functions as molecular chaperone to protect tumor cells from stress-induced cell death. Hsp70 acetylation alters its chaperone activity in cell death pathways, but its relevance in the process of cell death and the underlying mechanisms involved are not well understood. In this study, we demonstrated that vincristine induces mitophagy via the disruption of Hsp70 binding with Sirt2, leading to Hsp70 acetylation at K126 and elevated sequestration of Bcl2 by Hsp70 for autophagosome creation. Acetylation at K126 significantly changes the physiological function of Hsp70 compared to acetylation at other sites. It also attenuates the protein folding and renaturation function of Hsp70 by altering the binding co-chaperones. In addition, acetylation at K126 inhibits Hsp70-mediated tumor cell invasion and migration, and the binding of Hsp70 to AIF1 and Apaf1 for promoting mitochondrial-mediated apoptosis. In conclusion, this study describes the molecular mechanism of vincristine induction of cell apoptosis and mitophagy via ablation of Sirt2 induced Hsp70 acetylation at K126 in MDA-MB-231 cells.
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Affiliation(s)
- Fanghui Sun
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Xiaoxiao Jiang
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Xuan Wang
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Yong Bao
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Guize Feng
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Huijuan Liu
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Xinhui Kou
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China
| | - Qing Zhu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China
| | - Lan Jiang
- Department of Biological Sciences, Oakland University, 2200 N. Squirrel Road, Rochester, MI 48309, USA
| | - Yonghua Yang
- Department of Pharmacology and Biochemistry, School of Pharmacy Fudan University, Shanghai 201203, China.
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Influence of passage number on the impact of the secretome of adipose tissue stem cells on neural survival, neurodifferentiation and axonal growth. Biochimie 2018; 155:119-128. [PMID: 30342112 DOI: 10.1016/j.biochi.2018.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 09/13/2018] [Accepted: 09/20/2018] [Indexed: 02/07/2023]
Abstract
Mesenchymal stem cells (MSCs), and within them adipose tissue derived stem cells (ASCs), have been shown to have therapeutic effects on central nervous system (CNS) cell populations. Such effects have been mostly attributed to soluble factors, as well as vesicles, present in their secretome. Yet, little is known about the impact that MSC passaging might have in the secretion therapeutic profile. Our aim was to show how human ASCs (hASCs) passage number influences the effect of their secretome in neuronal survival, differentiation and axonal growth. For this purpose, post-natal rat hippocampal primary cultures, human neural progenitor cell (hNPCs) cultures and dorsal root ganglia (DRGs) explants were incubated with secretome, collected as conditioned media (CM), obtained from hASCs in P3, P6, P9 and P12. Results showed no differences when comparing percentages of MAP-2 positive cells (a mature neuronal marker) in neuronal cultures or hNPCs, after incubation with hASCs secretome from different passages. The same was observed regarding DRG neurite outgrowth. In order to characterize the secretomes obtained from different passages, a proteomic analysis was performed, revealing that its composition did not vary significantly with passage number P3 to P12. Results allowed us to identify several key proteins, such as pigment epithelium derived factor (PEDF), DJ-1, interleucin-6 (IL-6) and galectin, all of which have already proven to play neuroprotective and neurodifferentiating roles. Proteins that promote neurite outgrowth were also found present, such as semaphorin 7A and glypican-1. We conclude that cellular passaging does not influence significantly hASCs's secretome properties especially their ability to support post-natal neuronal survival, induce neurodifferentiation and promote axonal growth.
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Devi S, Yadav R, Chanana P, Arya R. Fighting the Cause of Alzheimer's and GNE Myopathy. Front Neurosci 2018; 12:669. [PMID: 30374284 PMCID: PMC6196280 DOI: 10.3389/fnins.2018.00669] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 09/06/2018] [Indexed: 12/12/2022] Open
Abstract
Age is the common risk factor for both neurodegenerative and neuromuscular diseases. Alzheimer disease (AD), a neurodegenerative disorder, causes dementia with age progression while GNE myopathy (GNEM), a neuromuscular disorder, causes muscle degeneration and loss of muscle motor movement with age. Individuals with mutations in presenilin or amyloid precursor protein (APP) gene develop AD while mutations in GNE (UDP N-acetylglucosamine 2 epimerase/N-acetyl Mannosamine kinase), key sialic acid biosynthesis enzyme, cause GNEM. Although GNEM is characterized with degeneration of muscle cells, it is shown to have similar disease hallmarks like aggregation of Aβ and accumulation of phosphorylated tau and other misfolded proteins in muscle cell similar to AD. Similar impairment in cellular functions have been reported in both disorders such as disruption of cytoskeletal network, changes in glycosylation pattern, mitochondrial dysfunction, oxidative stress, upregulation of chaperones, unfolded protein response in ER, autophagic vacuoles, cell death, and apoptosis. Interestingly, AD and GNEM are the two diseases with similar phenotypic condition affecting neuron and muscle, respectively, resulting in entirely different pathology. This review represents a comparative outlook of AD and GNEM that could lead to target common mechanism to find a plausible therapeutic for both the diseases.
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Affiliation(s)
| | - Rashmi Yadav
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Pratibha Chanana
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Ranjana Arya
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
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Sabirzhanov B, Faden AI, Aubrecht T, Henry R, Glaser E, Stoica BA. MicroRNA-711-Induced Downregulation of Angiopoietin-1 Mediates Neuronal Cell Death. J Neurotrauma 2018; 35:2462-2481. [PMID: 29774773 DOI: 10.1089/neu.2017.5572] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Angiopoietin-1 (Ang-1) is a well-known endothelial growth factor, but its effects on neurons have yet to be elucidated. We show that Ang-1 is rapidly downregulated in the injured brain after controlled cortical impact (CCI), a mouse experimental traumatic brain injury (TBI) model and in etoposide-induced neuronal apoptosis in vitro. Ang-1 treatment inhibits etoposide-induced upregulation of proapoptotic B-cell lymphoma 2 (Bcl-2) family members Noxa, p53 upregulated modulator of apoptosis (Puma), Bcl-2 interacting mediator of cell death (Bim), and Bcl-2-associated X protein (Bax); reduces markers of caspase-dependent (cytochrome c release/caspase activation) and caspase-independent (apoptosis-inducing factor release) pathways; and limits neuronal cell death. Ang-1 treatment phosphorylates receptors Tunica interna endothelial cell kinase 2 (Tie2), and β1-integrin and limits the etoposide-induced decrease in protein kinase B (Akt) activity. Blocking Tie2 and β1-integrin signaling reduces Ang-1 neuroprotective effects. After both TBI and etoposide treatment microRNA (miR)-711 are upregulated, consistent with its putative role as a negative regulator of Ang-1. We show that miR-711 directly targets the Ang-1 messenger RNA (mRNA), decreasing Ang-1 expression. Increased levels of miR-711 and Ang-1 mRNA are found in the RNA-induced silencing complex complex site of miR-mediated degradation of target mRNAs after etoposide treatment and the miR-711mimic downregulates Ang-1. Administration of miR-711 inhibitor elevates Ang-1 after TBI whereas Ang-1 administration increases Akt activation; reduces Puma, Noxa, Bim, and Bax levels; and attenuates caspase-dependent and -independent neuronal apoptosis 24 h after TBI. Ang-1 also attenuates neuronal degeneration, increases gene expression of molecules that maintain blood-brain barrier integrity, and reduces post-traumatic lesion volume/edema 24 h after TBI. Although we only observed short-term neuroprotective effects after Ang-1 administration, miR-711-dependent downregulation of Ang-1, followed by Akt pathway inhibition, may play a role in neuronal cell death after neuronal injury in vitro and after experimental TBI.
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Affiliation(s)
- Boris Sabirzhanov
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
| | - Alan I Faden
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
| | - Taryn Aubrecht
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
| | - Rebecca Henry
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
| | - Ethan Glaser
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
| | - Bogdan A Stoica
- Department of Anesthesiology and Center for Shock, Trauma, and Anesthesiology Research (STAR), University of Maryland , School of Medicine, Baltimore, Maryland
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SHIMADA TAKUYA, NANIMOTO YUTA, BARON BYRON, KITAGAWA TAKAO, TOKUDA KAZUHIRO, KURAMITSU YASUHIRO. Enzyme-treated Asparagus Extract Down-regulates Heat Shock Protein 27 of Pancreatic Cancer Cells. In Vivo 2018; 32. [PMID: 29936456 PMCID: PMC6117774 DOI: 10.21873/invivo.112305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND/AIM From the standpoint of cancer therapy, it is valuable to enhance the anticancer effects of chemotherapy. Our previous reports revealed that up-regulation of heat-shock protein 27 (HSP27) has been linked to gemcitabine resistance of pancreatic cancer cells. Enzyme-treated asparagus extract (ETAS) is an extract that is produced from asparagus. The purpose of this study was to investigate the effect of ETAS on the expression of HSP27 and other HSPs in the gemcitabine-resistant pancreatic cancer cell line KLM1-R. MATERIALS AND METHODS KLM1-R cells were treated with ETAS, and expression levels of HSPs, including HSP27, were investigated by western blotting. RESULTS ETAS down-regulated HSP27 and pHSP27 (serine 78) in KLM1-R cells, but, HSP70 and GRP78 levels were not altered. CONCLUSION This study suggests the potential therapeutic benefit of ETAS in enhancing anticancer effects by its combination with gemcitabine for patients with pancreatic cancer.
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Affiliation(s)
- TAKUYA SHIMADA
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - YUTA NANIMOTO
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - BYRON BARON
- Centre for Molecular Medicine and Biobanking,Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - TAKAO KITAGAWA
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - KAZUHIRO TOKUDA
- Department of Ophthalmology Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - YASUHIRO KURAMITSU
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan,Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Tobetsu, Japan
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Shimada T, Nanimoto Y, Baron B, Kitagawa T, Tokuda K, Kuramitsu Y. Enzyme-treated Asparagus Extract Down-regulates Heat Shock Protein 27 of Pancreatic Cancer Cells. In Vivo 2018; 32:759-763. [PMID: 29936456 DOI: 10.21873/invivo.11305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND/AIM From the standpoint of cancer therapy, it is valuable to enhance the anticancer effects of chemotherapy. Our previous reports revealed that up-regulation of heat-shock protein 27 (HSP27) has been linked to gemcitabine resistance of pancreatic cancer cells. Enzyme-treated asparagus extract (ETAS) is an extract that is produced from asparagus. The purpose of this study was to investigate the effect of ETAS on the expression of HSP27 and other HSPs in the gemcitabine-resistant pancreatic cancer cell line KLM1-R. MATERIALS AND METHODS KLM1-R cells were treated with ETAS, and expression levels of HSPs, including HSP27, were investigated by western blotting. RESULTS ETAS down-regulated HSP27 and pHSP27 (serine 78) in KLM1-R cells, but, HSP70 and GRP78 levels were not altered. CONCLUSION This study suggests the potential therapeutic benefit of ETAS in enhancing anticancer effects by its combination with gemcitabine for patients with pancreatic cancer.
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Affiliation(s)
- Takuya Shimada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yuta Nanimoto
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuhiro Tokuda
- Department of Ophthalmology Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan .,Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Tobetsu, Japan
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40
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Tshering G, Dorji PW, Chaijaroenkul W, Na-Bangchang K. Biomarkers for the Diagnosis of Cholangiocarcinoma: A Systematic Review. Am J Trop Med Hyg 2018; 98:1788-1797. [PMID: 29637880 DOI: 10.4269/ajtmh.17-0879] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cholangiocarcinoma (CCA), a malignant tumor of the bile duct, is a major public health problem in many Southeast Asian countries, particularly Thailand. The slow progression makes it difficult for early diagnosis and most patients are detected in advanced stages. This study aimed to review all relevant articles related to the biomarkers for the diagnosis of CCA and point out potential biomarkers. A thorough search was performed in PubMed and ScienceDirect for CCA biomarker articles. Required data were extracted. A total of 46 articles that fulfilled the inclusion and had none of the exclusion criteria were included in the analysis (17, 22, 3, 4, and 1 articles on blood, tissue, bile, both blood and tissue, and urine biomarkers, respectively). Carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA), either alone or in combination with other biomarkers, are the most commonly studied biomarkers in the serum. Their sensitivity and specificity ranged from 47.2% to 98.2% and 89.7% to 100%, respectively. However, in the tissue, gene methylations and DNA-related markers were the most studied CCA biomarkers. Their sensitivity and specificity ranged from 58% to 87% and 98% to 100%, respectively. Some articles investigated biomarkers both in blood and tissues, particularly CA19-9 and CEA, with sensitivity and specificity ranging from 33% to 100% and 50% to 97.7%, respectively. Although quite a number of biomarkers with a potential role in the early detection of CCA have been established, it is difficult to single out any particular marker that could be used in the routine clinical settings.
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Affiliation(s)
- Gyem Tshering
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Palden Wangyel Dorji
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Wanna Chaijaroenkul
- Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
| | - Kesara Na-Bangchang
- Center of Excellence in Pharmacology and Molecular Biology of Malaria and Cholangiocarcinoma, Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand.,Chulabhorn International College of Medicine, Thammasat University, Rangsit Center, Klong Luang, Pathum Thani, Thailand
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Frinchi M, Scaduto P, Cappello F, Belluardo N, Mudò G. Heat shock protein (Hsp) regulation by muscarinic acetylcholine receptor (mAChR) activation in the rat hippocampus. J Cell Physiol 2018; 233:6107-6116. [DOI: 10.1002/jcp.26454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 12/04/2017] [Accepted: 01/02/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Monica Frinchi
- Department of Experimental Biomedicine and Clinical Neuroscienc es, div. of Human PhysiologyUniversity of PalermoPalermoItaly
| | - Pietro Scaduto
- Department of Experimental Biomedicine and Clinical Neuroscienc es, div. of Human PhysiologyUniversity of PalermoPalermoItaly
| | - Francesco Cappello
- Department of Experimental Biomedicine and Clinical Neurosciences, div. of AnatomyUniversity of PalermoPalermoItaly
- Euro‐Mediterranean Institute of Science and TechnologyPalermoItaly
- Department of BiologyTemple UniversityPhiladelphiaPennsylvania
| | - Natale Belluardo
- Department of Experimental Biomedicine and Clinical Neuroscienc es, div. of Human PhysiologyUniversity of PalermoPalermoItaly
| | - Giuseppa Mudò
- Department of Experimental Biomedicine and Clinical Neuroscienc es, div. of Human PhysiologyUniversity of PalermoPalermoItaly
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López-Furelos A, Leiro-Vidal JM, Salas-Sánchez AÁ, Ares-Pena FJ, López-Martín ME. Evidence of cellular stress and caspase-3 resulting from a combined two-frequency signal in the cerebrum and cerebellum of sprague-dawley rats. Oncotarget 2018; 7:64674-64689. [PMID: 27589837 PMCID: PMC5323107 DOI: 10.18632/oncotarget.11753] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 07/16/2016] [Indexed: 12/30/2022] Open
Abstract
Multiple simultaneous exposures to electromagnetic signals induced adjustments in mammal nervous systems. In this study, we investigated the non-thermal SAR (Specific Absorption Rate) in the cerebral or cerebellar hemispheres of rats exposed in vivo to combined electromagnetic field (EMF) signals at 900 and 2450 MHz. Forty rats divided into four groups of 10 were individually exposed or not exposed to radiation in a GTEM chamber for one or two hours. After radiation, we used the Chemiluminescent Enzyme-Linked Immunosorbent Assay (ChELISA) technique to measure cellular stress levels, indicated by the presence of heat shock proteins (HSP) 90 and 70, as well as caspase-3-dependent pre-apoptotic activity in left and right cerebral and cerebellar hemispheres of Sprague Dawley rats. Twenty-four hours after exposure to combined or single radiation, significant differences were evident in HSP 90 and 70 but not in caspase 3 levels between the hemispheres of the cerebral cortex at high SAR levels. In the cerebellar hemispheres, groups exposed to a single radiofrequency (RF) and high SAR showed significant differences in HSP 90, 70 and caspase-3 levels compared to control animals. The absorbed energy and/or biological effects of combined signals were not additive, suggesting that multiple signals act on nervous tissue by a different mechanism.
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Affiliation(s)
- Alberto López-Furelos
- Department of Morphological Sciences, Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José Manuel Leiro-Vidal
- Institute of Alimentary Analysis, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Aarón Ángel Salas-Sánchez
- Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Francisco José Ares-Pena
- Department of Applied Physics, Faculty of Physics, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - María Elena López-Martín
- Department of Morphological Sciences, Faculty of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
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Liaudanskaya V, Migliaresi C, Motta A. Homeostasis maintenance of encapsulated cells. J Tissue Eng Regen Med 2017; 12:830-839. [PMID: 29076257 DOI: 10.1002/term.2600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 09/06/2017] [Accepted: 10/11/2017] [Indexed: 12/19/2022]
Abstract
Cell niche homeostasis plays a critical role in many bodily functions including tissue functionality, stem cell maintenance and differentiation, wound healing, cancer development and propagation, and many others. Many tissue engineering approaches overlook the importance of engineered constructs homeostasis, in particular for transplantation purposes. Here, we present a study of the effect of encapsulation duration on engineered tissue maturation and provide a protocol for the evaluation of critical conditions for transplantation purposes. In brief, SHSY5Y human neuroblastoma cells were encapsulated in 2% alginate by electrohydrodynamic jetting method for up to 4 weeks. We evaluated extracellular matrix niche formation and tissue maturation in situ through COL1A1 expression. In in vitro conditions, we studied the ability of cells to maintain their critical functions after being released from alginate beads. Cellular viability was evaluated via an apoptosis/necrosis detection kit and AlamarBlue assay, and functionality via immunocytochemistry. We proved the importance of engineered tissue homeostasis stabilization for future cell recovery, in particular, for our system cells encapsulated for 28 days met all critical requirements for successful tissue transplantation. Maturation of engineered tissue constructs could be accelerated by enriching alginate with growth factors or extracellular matrix molecules.
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Affiliation(s)
- Volha Liaudanskaya
- Department of Industrial Engineering, BIOtech Research Center, University of Trento, Trento, Italy.,Department of Biomedical Engineering, Tufts University, Medford, MA, USA
| | - Claudio Migliaresi
- Department of Industrial Engineering, BIOtech Research Center, University of Trento, Trento, Italy.,European Institute of Excellence on Tissue Engineering and Regenerative medicine, Trento, Italy
| | - Antonella Motta
- Department of Industrial Engineering, BIOtech Research Center, University of Trento, Trento, Italy.,European Institute of Excellence on Tissue Engineering and Regenerative medicine, Trento, Italy
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Triggering Receptor Expressed on Myeloid Cells 2, a Novel Regulator of Immunocyte Phenotypes, Confers Neuroprotection by Relieving Neuroinflammation. Anesthesiology 2017; 127:98-110. [PMID: 28398927 DOI: 10.1097/aln.0000000000001628] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Microglia can not only detrimentally augment secondary injury but also potentially promote recovery. However, the mechanism underlying the regulation of microglial phenotypes after stroke remains unclear. METHODS Mice were subjected to middle cerebral artery occlusion for 60 min. At 3 days after reperfusion, the effects of activation and suppression of triggering receptor expressed on myeloid cells 2 on immunocyte phenotypes (n = 5), neurobehavioral scores (n = 7), infarct volumes (n = 8), and neuronal apoptosis (n = 7) were analyzed. In vitro, cultured microglia were exposed to oxygen-glucose deprivation for 4 h. Inflammatory cytokines, cellular viability (n = 8), neuronal apoptosis (n = 7), and triggering receptor expressed on myeloid cells 2 expression (n = 5) were evaluated in the presence or absence of triggering receptor expressed on myeloid cell-specific small interfering RNA or triggering receptor expressed on myeloid cells 2 overexpression lentivirus. RESULTS Triggering receptor expressed on myeloid cells 2 expression in the ischemic penumbra peaked at 3 days after ischemia-reperfusion injury (4.4 ± 0.1-fold, P = 0.0004) and was enhanced in interleukin-4/interleukin-13-treated microglia in vitro (1.7 ± 0.2-fold, P = 0.0119). After oxygen-glucose deprivation, triggering receptor expressed on myeloid cells 2 conferred neuroprotection by regulating the phenotypic conversion of microglia and inflammatory cytokine release. Intraperitoneal administration of triggering receptor expressed on myeloid cells 2 agonist heat shock protein 60 or unilateral delivery of a recombinant triggering receptor expressed on myeloid cells 2 lentivirus into the cerebral ventricle induced a significant neuroprotective effect in mice (apoptotic neurons decreased to 31.3 ± 7.6%; infarct volume decreased to 44.9 ± 5.3%). All values are presented as the mean ± SD. CONCLUSIONS Activation or up-regulation of triggering receptor expressed on myeloid cells 2 promoted the phenotypic conversion of microglia and decreased the number of apoptotic neurons. Our study suggests that triggering receptor expressed on myeloid cells 2 is a novel regulator of microglial phenotypes and may be a potential therapeutic target for stroke.
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Schulze J, Kaiser O, Paasche G, Lamm H, Pich A, Hoffmann A, Lenarz T, Warnecke A. Effect of hyperbaric oxygen on BDNF-release and neuroprotection: Investigations with human mesenchymal stem cells and genetically modified NIH3T3 fibroblasts as putative cell therapeutics. PLoS One 2017; 12:e0178182. [PMID: 28542481 PMCID: PMC5441643 DOI: 10.1371/journal.pone.0178182] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/09/2017] [Indexed: 12/30/2022] Open
Abstract
Hyperbaric oxygen therapy (HBOT) is a noninvasive widely applied treatment that increases the oxygen pressure in tissues. In cochlear implant (CI) research, intracochlear application of neurotrophic factors (NTFs) is able to improve survival of spiral ganglion neurons (SGN) after deafness. Cell-based delivery of NTFs such as brain-derived neurotrophic factor (BDNF) may be realized by cell-coating of the surface of the CI electrode. Human mesenchymal stem cells (MSC) secrete a variety of different neurotrophic factors and may be used for the development of a biohybrid electrode in order to release endogenously-derived neuroprotective factors for the protection of residual SGN and for a guided outgrowth of dendrites in the direction of the CI electrode. HBOT could be used to influence cell behaviour after transplantation to the inner ear. The aim of this study was to investigate the effect of HBOT on the proliferation, BDNF-release and secretion of neuroprotective factors. Thus, model cells (an immortalized fibroblast cell line (NIH3T3)–native and genetically modified) and MSCs were repeatedly (3 x – 10 x) exposed to 100% oxygen at different pressures. The effects of HBO on cell proliferation were investigated in relation to normoxic and normobaric conditions (NOR). Moreover, the neuroprotective and neuroregenerative effects of HBO-treated cells were analysed by cultivation of SGN in conditioned medium. Both, the genetically modified NIH3T3/BDNF and native NIH3T3 fibroblasts, showed a highly significant increased proliferation after five days of HBOT in comparison to normoxic controls. By contrast, the number of MSCs was decreased in MSCs treated with 2.0 bar of HBO. Treating SGN cultures with supernatants of fibroblasts and MSCs significantly increased the survival rate of SGN. HBO treatment did not influence (increase / reduce) this effect. Secretome analysis showed that HBO treatment altered the protein expression pattern in MSCs.
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Affiliation(s)
- Jennifer Schulze
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing4all”, Hannover, Germany
- * E-mail:
| | - Odett Kaiser
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing4all”, Hannover, Germany
| | - Gerrit Paasche
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing4all”, Hannover, Germany
| | - Hans Lamm
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
| | - Andreas Pich
- Core Facility Proteomics, Hannover Medical School, Hannover, Germany
| | - Andrea Hoffmann
- Department of Orthopaedic Surgery, Hannover Medical School, Hannover, Germany
| | - Thomas Lenarz
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing4all”, Hannover, Germany
| | - Athanasia Warnecke
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, Hannover, Germany
- Cluster of Excellence “Hearing4all”, Hannover, Germany
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Hoshino I, Nagata M, Takiguchi N, Nabeya Y, Ikeda A, Yokoi S, Kuwajima A, Tagawa M, Matsushita K, Satoshi Y, Hideaki S. Panel of autoantibodies against multiple tumor-associated antigens for detecting gastric cancer. Cancer Sci 2017; 108:308-315. [PMID: 28064445 PMCID: PMC5378227 DOI: 10.1111/cas.13158] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 12/20/2022] Open
Abstract
Gastric cancer is the second leading cause of cancer death in the world, and effective diagnosis is extremely important for good outcome. We assessed the diagnostic potential of an autoantibody panel that may provide a novel tool for the early detection of gastric cancer. We analyzed data from patients with gastric cancer and normal controls in test and validation cohorts. Autoantibody levels were measured against a panel of six tumor‐associated antigens (TAAs) by ELISA: p53, heat shock protein 70, HCC‐22‐5, peroxiredoxin VI, KM‐HN‐1, and p90 TAA. We assessed serum autoantibodies in 100 participants in the test cohort. The validation cohort comprised 248 participants. Autoantibodies to at least one of the six antigens showed a sensitivity/specificity of 49.0% (95% confidence interval [CI], 39.2–58.8%)/92.4% (95% CI, 87.2–97.6%), and 52.0% (95% CI, 42.2–61.8%)/90.5% (95% CI, 84.8–96.3%) in the test and validation cohorts, respectively. In the validation cohort, no significant differences were seen when patients were subdivided based on age, sex, depth of tumor invasion, lymph node metastasis, distant metastasis, peritoneal dissemination, or TNM stage. Patients who were positive for more than two antibodies in the panel tended to have a worse prognosis than those who were positive for one or no antibody. Measurement of autoantibody response to multiple TAAs in an optimized panel assay to discriminate patients with early stage gastric cancer from normal controls may aid in the early detection of gastric cancer.
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Affiliation(s)
- Isamu Hoshino
- Division of Gastroenterological Surgery, Chiba Cancer Center, Chiba, Japan
| | - Matsuo Nagata
- Division of Gastroenterological Surgery, Chiba Cancer Center, Chiba, Japan
| | - Nobuhiro Takiguchi
- Division of Gastroenterological Surgery, Chiba Cancer Center, Chiba, Japan
| | - Yoshihiro Nabeya
- Division of Gastroenterological Surgery, Chiba Cancer Center, Chiba, Japan
| | - Atsushi Ikeda
- Division of Gastroenterological Surgery, Chiba Cancer Center, Chiba, Japan
| | - Sana Yokoi
- Division of Chemotherapy and Cancer Diagnosis, Chiba Cancer Center, Chiba, Japan
| | - Akiko Kuwajima
- Medical & Biological Laboratories Co., Ltd, Nagoya, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center, Chiba, Japan
| | - Kazuyuki Matsushita
- Division of Clinical Genetics and Proteomics, Department of Laboratory Medicine, Chiba University Hospital, Chiba, Japan
| | - Yajima Satoshi
- Department of Surgery, School of Medicine, Toho University, Tokyo, Japan
| | - Shimada Hideaki
- Department of Surgery, School of Medicine, Toho University, Tokyo, Japan
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Bose S, Cho J. Targeting chaperones, heat shock factor-1, and unfolded protein response: Promising therapeutic approaches for neurodegenerative disorders. Ageing Res Rev 2017; 35:155-175. [PMID: 27702699 DOI: 10.1016/j.arr.2016.09.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 09/02/2016] [Accepted: 09/26/2016] [Indexed: 12/22/2022]
Abstract
Protein misfolding, which is known to cause several serious diseases, is an emerging field that addresses multiple therapeutic areas. Misfolding of a disease-specific protein in the central nervous system ultimately results in the formation of toxic aggregates that may accumulate in the brain, leading to neuronal cell death and dysfunction, and associated clinical manifestations. A large number of neurodegenerative diseases in humans, including Alzheimer's, Parkinson's, Huntington's, and prion diseases, are primarily caused by protein misfolding and aggregation. Notably, the cellular system is equipped with a protein quality control system encompassing chaperones, ubiquitin proteasome system, and autophagy, as a defense mechanism that monitors protein folding and eliminates inappropriately folded proteins. As the intrinsic molecular mechanisms of protein misfolding become more clearly understood, the novel therapeutic approaches in this arena are gaining considerable interest. The present review will describe the chaperones network and different approaches as the therapeutic targets for neurodegenerative diseases. Current and emerging therapeutic approaches to combat neurodegenerative diseases, addressing the roles of molecular, chemical, and pharmacological chaperones, as well as heat shock factor-1 and the unfolded protein response, are also discussed in detail.
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Affiliation(s)
- Shambhunath Bose
- College of Pharmacy, Dongguk University-Seoul, Goyang, Gyeonggi-do 10326, Republic of Korea
| | - Jungsook Cho
- College of Pharmacy, Dongguk University-Seoul, Goyang, Gyeonggi-do 10326, Republic of Korea.
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Fu S, Li L, Kang H, Yang X, Men S, Shen Y. Chronic mitochondrial calcium elevation suppresses leaf senescence. Biochem Biophys Res Commun 2017; 487:672-677. [PMID: 28442347 DOI: 10.1016/j.bbrc.2017.04.113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 04/20/2017] [Indexed: 12/24/2022]
Abstract
Mitochondria Ca2+ overload has long been recognized as a cell death trigger. Unexpectedly, we demonstrated a signaling complex composed of Calmodulin (CaM), Arabidopsis thaliana Bcl-2-associated athanogene 5 (AtBAG5) and Heat-shock cognate 70 protein (Hsc70) within Arabidopsis thaliana mitochondria which transduces mitochondria Ca2+ elevations to suppress leaf senescence. Gain- and loss-of-function AtBAG5 mutant plants revealed that, mitochondria Ca2+ elevation significantly increase chlorophyll retention and decrease H2O2 level in dark-induced leaf senescence assay. Based on our findings, we proposed a molecular mechanism in which chronic mitochondria Ca2+ elevation reduced ROS levels and thus inhibits leaf senescence.
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Affiliation(s)
- Shijuan Fu
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China; College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Luhua Li
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China; College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Huimin Kang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China; College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xue Yang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China.
| | - Shuzhen Men
- College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China.
| | - Yuequan Shen
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, 94 Weijin Road, Tianjin 300071, China; College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China; Synergetic Innovation Center of Chemical Science and Engineering, 94 Weijin Road, Tianjin 300071, China.
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Meng X, Chen X, Lu P, Ma W, Yue D, Song L, Fan Q. miR-202 Promotes Cell Apoptosis in Esophageal Squamous Cell Carcinoma by Targeting HSF2. Oncol Res 2017; 25:215-223. [PMID: 28277193 PMCID: PMC7840838 DOI: 10.3727/096504016x14732772150541] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the most common malignant cancers with high mortality around the world. However, the regulatory mechanism of ESCC carcinogenesis is not completely known. Here we demonstrate the novel role of miR-202 in regulating ESCC cell apoptosis. The analysis of data obtained from the GEO database showed that the expression of miR-202 is aberrantly decreased in tumor tissue from ESCC patients and cultured ESCC cell lines. After transfection with miR-202 mimic or inhibitor, the apoptotic capacity of ESCC cells was significantly increased by miR-202 overexpression but reduced by miR-202 repression. We then identified HSF2 as a direct target of miR-202 with the binding site on the 3′-UTR of HSF2 mRNA in ESCC cells. The apoptosis of ESCC cells induced by the miR-202 mimic could be repressed by HSF2 overexpression. Further studies indicated that HSF2 overexpression strongly upregulated the expression of Hsp70 at both the mRNA and protein levels. In addition, HSF2/Hsp70 suppressed ESCC cell apoptosis by preventing caspase 3 activation. In conclusion, miR-202 is a potential tumor suppressor in human ESCC and acts by regulating the apoptosis of ESCC cells by targeting HSF2, in which caspase 3 activation is involved. This might provide a novel therapeutic target for human ESCC.
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Affiliation(s)
- Xiangrui Meng
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
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Wu T, Zhan Q, Zhang T, Ang S, Ying J, He K, Zhang S, Xue Y, Tang M. The protective effects of resveratrol, H 2S and thermotherapy on the cell apoptosis induced by CdTe quantum dots. Toxicol In Vitro 2017; 41:106-113. [PMID: 28219723 DOI: 10.1016/j.tiv.2017.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 12/19/2016] [Accepted: 02/17/2017] [Indexed: 02/07/2023]
Abstract
Quantum dots (QDs) could be used in the field of biology and medicine as excellent nano-scale fluorescent probes due to their unique optical properties, but the adverse effects of QDs are always the obstruction for its usage in living organisms. In this study, we observed that CdTe QDs exposure decreased the cell viability while increased the apoptosis rates in the L929 cells. Apart from QD-induced oxidative stress indicated by excessive ROS generation, three signal transductions, including Akt, p38 and JNK, played important roles on the regulation of cell apoptosis by CdTe QDs exposure as well. In order to reduce the toxicity of CdTe QDs, we explored the protective effects of three treatments, i.e. resveratrol, H2S and thermotherapy at 43°C, against the cell apoptosis elicited by CdTe QDs. The results showed that resveratrol, H2S and thermotherapy at 43°C were capable of attenuating cell apoptosis and intercellular ROS production through inhibiting signal pathways of Akt, p38 and JNK, respectively. As there is only limited number of exogenous treatments reported to diminish the toxicity of QDs, our findings will provide a novel insight for researchers who try to reduce or even eliminate the adverse health effects of QDs.
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Affiliation(s)
- Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Qingling Zhan
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Shengjun Ang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Jiali Ying
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Keyu He
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Shihan Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China.
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