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Yan Y, Bai S, Han H, Dai J, Niu L, Wang H, Dong Q, Yin H, Yuan G, Pan Y. Knockdown of trem2 promotes proinflammatory microglia and inhibits glioma progression via the JAK2/STAT3 and NF-κB pathways. Cell Commun Signal 2024; 22:272. [PMID: 38750472 PMCID: PMC11094905 DOI: 10.1186/s12964-024-01642-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 04/28/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND In the tumor immune microenvironment (TIME), triggering receptor expressed on myeloid cells 2 (trem2) is widely considered to be a crucial molecule on tumor-associated macrophages(TAMs). Multiple studies have shown that trem2 may function as an immune checkpoint in various malignant tumors, mediating tumor immune evasion. However, its specific molecular mechanisms, especially in glioma, remain elusive. METHODS Lentivirus was transfected to establish cells with stable knockdown of trem2. A Transwell system was used for segregated coculture of glioma cells and microglia. Western blotting, quantitative real-time polymerase chain reaction (qRT‒PCR), and immunofluorescence (IF) were used to measure the expression levels of target proteins. The proliferation, invasion, and migration of cells were detected by colony formation, cell counting kit-8 (CCK8), 5-ethynyl-2'-deoxyuridine (EdU) and transwell assays. The cell cycle, apoptosis rate and reactive oxygen species (ROS) level of cells were assessed using flow cytometry assays. The comet assay and tube formation assay were used to detect DNA damage in glioma cells and angiogenesis activity, respectively. Gl261 cell lines and C57BL/6 mice were used to construct the glioma orthotopic transplantation tumor model. RESULTS Trem2 was highly overexpressed in glioma TAMs. Knocking down trem2 in microglia suppressed the growth and angiogenesis activity of glioma cells in vivo and in vitro. Mechanistically, knockdown of trem2 in microglia promoted proinflammatory microglia and inhibited anti-inflammatory microglia by activating jak2/stat1 and inhibiting the NF-κB p50 signaling pathway. The proinflammatory microglia produced high concentrations of nitric oxide (NO) and high levels of the proinflammatory cytokines TNF-α, IL-6, and IL-1β, and caused further DNA damage and promoted the apoptosis rate of tumor cells. CONCLUSIONS Our findings revealed that trem2 in microglia plays a significant role in the TIME of gliomas. Knockdown of trem2 in microglia might help to improve the efficiency of inhibiting glioma growth and delaying tumor progression and provide new ideas for further treatment of glioma.
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Affiliation(s)
- Yunji Yan
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Shengwei Bai
- Department of Neurosurgery, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Hongxi Han
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Junqiang Dai
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Liang Niu
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Hongyu Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Qiang Dong
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Hang Yin
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China
| | - Guoqiang Yuan
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China.
- Key Laboratory of Neurology of Gansu Province, Lanzhou University Second Hospital, No.82, cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China.
| | - Yawen Pan
- Department of Neurosurgery, Lanzhou University Second Hospital, No.82, Cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China.
- Key Laboratory of Neurology of Gansu Province, Lanzhou University Second Hospital, No.82, cuiyingmen, Chengguan District, Lanzhou City, 730030, Gansu Province, China.
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2
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Jia M, Chai L, Wang J, Wang M, Qin D, Song H, Fu Y, Zhao C, Gao C, Jia J, Zhao W. S-nitrosothiol homeostasis maintained by ADH5 facilitates STING-dependent host defense against pathogens. Nat Commun 2024; 15:1750. [PMID: 38409248 PMCID: PMC10897454 DOI: 10.1038/s41467-024-46212-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/19/2024] [Indexed: 02/28/2024] Open
Abstract
Oxidative (or respiratory) burst confers host defense against pathogens by generating reactive species, including reactive nitrogen species (RNS). The microbial infection-induced excessive RNS damages many biological molecules via S-nitrosothiol (SNO) accumulation. However, the mechanism by which the host enables innate immunity activation during oxidative burst remains largely unknown. Here, we demonstrate that S-nitrosoglutathione (GSNO), the main endogenous SNO, attenuates innate immune responses against herpes simplex virus-1 (HSV-1) and Listeria monocytogenes infections. Mechanistically, GSNO induces the S-nitrosylation of stimulator of interferon genes (STING) at Cys257, inhibiting its binding to the second messenger cyclic guanosine monophosphate-adenosine monophosphate (cGAMP). Alcohol dehydrogenase 5 (ADH5), the key enzyme that metabolizes GSNO to decrease cellular SNOs, facilitates STING activation by inhibiting S-nitrosylation. Concordantly, Adh5 deficiency show defective STING-dependent immune responses upon microbial challenge and facilitates viral replication. Thus, cellular oxidative burst-induced RNS attenuates the STING-mediated innate immune responses to microbial infection, while ADH5 licenses STING activation by maintaining cellular SNO homeostasis.
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Affiliation(s)
- Mutian Jia
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Li Chai
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Jie Wang
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Mengge Wang
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Danhui Qin
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Hui Song
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Yue Fu
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Department of Physiology & Pathophysiology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chunyuan Zhao
- Department of Cell Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Chengjiang Gao
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China
| | - Jihui Jia
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Wei Zhao
- Department of Pathogenic Biology, Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, and Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, Shandong, China.
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3
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Kitchener EJA, Dundee JM, Brown GC. Activated microglia release β-galactosidase that promotes inflammatory neurodegeneration. Front Aging Neurosci 2024; 15:1327756. [PMID: 38283068 PMCID: PMC10811154 DOI: 10.3389/fnagi.2023.1327756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/18/2023] [Indexed: 01/30/2024] Open
Abstract
Beta (β)-galactosidase is a lysosomal enzyme that removes terminal galactose residues from glycolipids and glycoproteins. It is upregulated in, and used as a marker for, senescent cells. Microglia are brain macrophages implicated in neurodegeneration, and can upregulate β-galactosidase when senescent. We find that inflammatory activation of microglia induced by lipopolysaccharide results in translocation of β-galactosidase to the cell surface and release into the medium. Similarly, microglia in aged mouse brains appear to have more β-galactosidase on their surface. Addition of β-galactosidase to neuronal-glial cultures causes microglial activation and neuronal loss mediated by microglia. Inhibition of β-galactosidase in neuronal-glial cultures reduces inflammation and neuronal loss induced by lipopolysaccharide. Thus, activated microglia release β-galactosidase that promotes microglial-mediated neurodegeneration which is prevented by inhibition of β-galactosidase.
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Affiliation(s)
| | | | - Guy C. Brown
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
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4
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Reid KM, Brown GC. LRPAP1 is released from activated microglia and inhibits microglial phagocytosis and amyloid beta aggregation. Front Immunol 2023; 14:1286474. [PMID: 38035103 PMCID: PMC10687467 DOI: 10.3389/fimmu.2023.1286474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023] Open
Abstract
Low-density lipoprotein receptor-related protein-associated protein 1 (LRPAP1), also known as receptor associated protein (RAP), is an endoplasmic reticulum (ER) chaperone and inhibitor of LDL receptor related protein 1 (LRP1) and related receptors. These receptors have dozens of physiological ligands and cell functions, but it is not known whether cells release LRPAP1 physiologically at levels that regulate these receptors and cell functions. We used mouse BV-2 and human CHME3 microglial cell lines, and found that microglia released nanomolar levels of LRPAP1 when inflammatory activated by lipopolysaccharide or when ER stressed by tunicamycin. LRPAP1 was found on the surface of live activated and non-activated microglia, and anti-LRPAP1 antibodies induced internalization. Addition of 10 nM LRPAP1 inhibited microglial phagocytosis of isolated synapses and cells, and the uptake of Aβ. LRPAP1 also inhibited Aβ aggregation in vitro. Thus, activated and stressed microglia release LRPAP1 levels that can inhibit phagocytosis, Aβ uptake and Aβ aggregation. We conclude that LRPAP1 release may regulate microglial functions and Aβ pathology, and more generally that extracellular LRPAP1 may be a physiological and pathological regulator of a wide range of cell functions.
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Affiliation(s)
| | - Guy C. Brown
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
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5
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Kumari S, Gupta R, Ambasta RK, Kumar P. Emerging trends in post-translational modification: Shedding light on Glioblastoma multiforme. Biochim Biophys Acta Rev Cancer 2023; 1878:188999. [PMID: 37858622 DOI: 10.1016/j.bbcan.2023.188999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023]
Abstract
Recent multi-omics studies, including proteomics, transcriptomics, genomics, and metabolomics have revealed the critical role of post-translational modifications (PTMs) in the progression and pathogenesis of Glioblastoma multiforme (GBM). Further, PTMs alter the oncogenic signaling events and offer a novel avenue in GBM therapeutics research through PTM enzymes as potential biomarkers for drug targeting. In addition, PTMs are critical regulators of chromatin architecture, gene expression, and tumor microenvironment (TME), that play a crucial function in tumorigenesis. Moreover, the implementation of artificial intelligence and machine learning algorithms enhances GBM therapeutics research through the identification of novel PTM enzymes and residues. Herein, we briefly explain the mechanism of protein modifications in GBM etiology, and in altering the biologics of GBM cells through chromatin remodeling, modulation of the TME, and signaling pathways. In addition, we highlighted the importance of PTM enzymes as therapeutic biomarkers and the role of artificial intelligence and machine learning in protein PTM prediction.
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Affiliation(s)
- Smita Kumari
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological, University, India
| | - Rohan Gupta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological, University, India; School of Medicine, University of South Carolina, Columbia, SC, United States of America
| | - Rashmi K Ambasta
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological, University, India; Department of Biotechnology and Microbiology, SRM University, Sonepat, Haryana, India.
| | - Pravir Kumar
- Molecular Neuroscience and Functional Genomics Laboratory, Department of Biotechnology, Delhi Technological, University, India.
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6
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Bui I, Baritaki S, Libra M, Zaravinos A, Bonavida B. Cancer Resistance Is Mediated by the Upregulation of Several Anti-Apoptotic Gene Products via the Inducible Nitric Oxide Synthase/Nitric Oxide Pathway: Therapeutic Implications. Antioxid Redox Signal 2023; 39:853-889. [PMID: 37466477 DOI: 10.1089/ars.2023.0250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Significance: Several therapeutic strategies for cancer treatments have been developed with time, and significant milestones have been achieved recently. However, with these novel therapies, not all cancer types respond and in the responding cancer types only a subset is affected. The failure to respond is principally the result that these cancers develop several mechanisms of resistance. Thus, a focus of current research investigations is to unravel the various mechanisms that regulate resistance and identify suitable targets for new therapeutics. Recent Advances: Hence, many human cancer types have been reported to overexpress the inducible nitric oxide synthase (iNOS) and it has been suggested that iNOS/nitric oxide (NO) plays a pivotal role in the regulation of resistance. We have postulated that iNOS overexpression or NO regulates the overexpression of pivotal anti-apoptotic gene products such as B-cell lymphoma 2 (Bcl-2), B-cell lymphoma extra large (Bcl-xL), myeloid cell leukemia-1 (Mcl-1), and survivin. In this report, we describe the various mechanisms, transcriptional, post-transcriptional, and post-translational, by which iNOS/NO regulates the expression of the above anti-apoptotic gene products. Critical Issues: The iNOS/NO-mediated regulation of the four gene products is not the same with both specific and overlapping pathways. Our findings are, in large part, validated by bioinformatic analyses demonstrating, in several cancers, several direct correlations between the expression of iNOS and each of the four examined anti-apoptotic gene products. Future Directions: We have proposed that targeting iNOS may be highly efficient since it will result in the underexpression of multiple anti-apoptotic proteins and shifting the balance toward the proapoptotic gene products and reversal of resistance. Antioxid. Redox Signal. 39, 853-889.
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Affiliation(s)
- Indy Bui
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California, USA
| | - Stavroula Baritaki
- Laboratory of Experimental Oncology, Department of Surgery, School of Medicine, University of Crete, Heraklion, Greece
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
- Italian League Against Cancer, Catania, Italy
| | - Apostolos Zaravinos
- Department of Life Sciences, School of Sciences, European University Cyprus, Nicosia, Cyprus
- Cancer Genetics, Genomics and Systems Biology Laboratory, Basic and Translational Cancer Research Center (BTCRC), Nicosia, Cyprus
| | - Benjamin Bonavida
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California, USA
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7
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Alonso Bellido IM, Posada-Pérez M, Hernández-Rasco F, Vázquez-Reyes S, Cabanillas M, Herrera AJ, Bachiller S, Soldán-Hidalgo J, Espinosa-Oliva AM, Joseph B, de Pablos RM, Venero JL, Ruiz R. Microglial Caspase-3 is essential for modulating hippocampal neurogenesis. Brain Behav Immun 2023:S0889-1591(23)00157-5. [PMID: 37327833 DOI: 10.1016/j.bbi.2023.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/07/2023] [Accepted: 06/10/2023] [Indexed: 06/18/2023] Open
Abstract
Adult hippocampal neurogenesis (AHN) is a process involved in numerous neurodegenerative diseases. Many researchers have described microglia as a key component in regulating the formation and migration of new neurons along the rostral migratory stream. Caspase-3 is a cysteine-aspartate-protease classically considered as one of the main effector caspases in the cell death program process. In addition to this classical function, we have identified the role of this protein as a modulator of microglial function; however, its action on neurogenic processes is unknown. The aim of the present study is to identify the role of Caspase-3 in neurogenesis-related microglial functions. To address this study, Caspase-3 conditional knockout mice in the microglia cell line were used. Using this tool, we wanted to elucidate the role of this protein in microglial function in the hippocampus, the main region in which adult neurogenesis takes place. After the reduction of Caspase-3 in microglia, mutant mice showed a reduction of microglia in the hippocampus, especially in the dentate gyrus region, a region inherently associated to neurogenesis. In addition, we found a reduction in doublecortin-positive neurons in conditional Caspase-3 knockout mice, which corresponds to a reduction in neurogenic neurons. Furthermore, using high-resolution image analysis, we also observed a reduction in the phagocytic capacity of microglia lacking Caspase-3. Behavioral analysis using object recognition and Y-maze tests showed altered memory and learning in the absence of Caspase-3. Finally, we identified specific microglia located specifically in neurogenic niche positive for Galectin 3 which colocalized with Cleaved-Caspase-3 in control mice. Taken together, these results showed the essential role of Caspase-3 in microglial function and highlight the relevant role of this specific microglial phenotype in the maintenance of AHN in the hippocampus.
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Affiliation(s)
- Isabel M Alonso Bellido
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Mercedes Posada-Pérez
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Francisco Hernández-Rasco
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Sandra Vázquez-Reyes
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - María Cabanillas
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Antonio J Herrera
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Sara Bachiller
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Clinical Unit of Infectious Diseases, Microbiology and Parasitology, Laboratory of Immunovirology, Virgen del Rocío University Hospital, Seville, Spain; Department of Medical Biochemistry, Molecular Biology and Immunology, School of Medicine, University of Seville, Seville, Spain
| | - Jesús Soldán-Hidalgo
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Ana M Espinosa-Oliva
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Bertrand Joseph
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Rocío M de Pablos
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - José L Venero
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain
| | - Rocío Ruiz
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad de Sevilla, Spain.
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8
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Stratoulias V, Ruiz R, Kanatani S, Osman AM, Keane L, Armengol JA, Rodríguez-Moreno A, Murgoci AN, García-Domínguez I, Alonso-Bellido I, González Ibáñez F, Picard K, Vázquez-Cabrera G, Posada-Pérez M, Vernoux N, Tejera D, Grabert K, Cheray M, González-Rodríguez P, Pérez-Villegas EM, Martínez-Gallego I, Lastra-Romero A, Brodin D, Avila-Cariño J, Cao Y, Airavaara M, Uhlén P, Heneka MT, Tremblay MÈ, Blomgren K, Venero JL, Joseph B. ARG1-expressing microglia show a distinct molecular signature and modulate postnatal development and function of the mouse brain. Nat Neurosci 2023:10.1038/s41593-023-01326-3. [PMID: 37169859 DOI: 10.1038/s41593-023-01326-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 04/11/2023] [Indexed: 05/13/2023]
Abstract
Molecular diversity of microglia, the resident immune cells in the CNS, is reported. Whether microglial subsets characterized by the expression of specific proteins constitute subtypes with distinct functions has not been fully elucidated. Here we describe a microglial subtype expressing the enzyme arginase-1 (ARG1; that is, ARG1+ microglia) that is found predominantly in the basal forebrain and ventral striatum during early postnatal mouse development. ARG1+ microglia are enriched in phagocytic inclusions and exhibit a distinct molecular signature, including upregulation of genes such as Apoe, Clec7a, Igf1, Lgals3 and Mgl2, compared to ARG1- microglia. Microglial-specific knockdown of Arg1 results in deficient cholinergic innervation and impaired dendritic spine maturation in the hippocampus where cholinergic neurons project, which in turn results in impaired long-term potentiation and cognitive behavioral deficiencies in female mice. Our results expand on microglia diversity and provide insights into microglia subtype-specific functions.
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Affiliation(s)
- Vassilis Stratoulias
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden.
- Neuroscience Center, HiLIFE, University of Helsinki, Helsinki, Finland.
| | - Rocío Ruiz
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Shigeaki Kanatani
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Ahmed M Osman
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Lily Keane
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Jose A Armengol
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Antonio Rodríguez-Moreno
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Adriana-Natalia Murgoci
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Irene García-Domínguez
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Isabel Alonso-Bellido
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Fernando González Ibáñez
- Department of Molecular Medicine, Université Laval, and Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Laval, Quebec, Canada
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Katherine Picard
- Department of Molecular Medicine, Université Laval, and Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Laval, Quebec, Canada
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Guillermo Vázquez-Cabrera
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Mercedes Posada-Pérez
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Nathalie Vernoux
- Department of Molecular Medicine, Université Laval, and Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Laval, Quebec, Canada
| | - Dario Tejera
- Department of Neurodegenerative Diseases and Gerontopsychiatry, University of Bonn, Bonn, Germany
| | - Kathleen Grabert
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Mathilde Cheray
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden
| | | | - Eva M Pérez-Villegas
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | - Irene Martínez-Gallego
- Department of Physiology, Anatomy and Cellular Biology, University of Pablo de Olavide, Seville, Spain
| | | | - David Brodin
- Bioinformatics and Expression Analysis Core Facility, Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
| | - Javier Avila-Cariño
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden
| | - Yang Cao
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, Örebro, Sweden
- Unit of Integrative Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mikko Airavaara
- Neuroscience Center, HiLIFE, University of Helsinki, Helsinki, Finland
- Faculty of Pharmacy, Drug Research Program, University of Helsinki, Helsinki, Finland
| | - Per Uhlén
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Michael T Heneka
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Belvaux, Luxembourg
- Department of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Marie-Ève Tremblay
- Department of Molecular Medicine, Université Laval, and Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Laval, Quebec, Canada
- Division of Medical Sciences, University of Victoria, Victoria, British Columbia, Canada
| | - Klas Blomgren
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Jose L Venero
- Instituto de Biomedicina de Sevilla, IBiS/Hospital Universitario Virgen del Rocío/CSIC, Universidad de Sevilla, Seville, Spain
| | - Bertrand Joseph
- Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm, Sweden.
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9
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Li SY, Guo YL, Tian JW, Zhang HJ, Li RF, Gong P, Yu ZL. Anti-Tumor Strategies by Harnessing the Phagocytosis of Macrophages. Cancers (Basel) 2023; 15:2717. [PMID: 37345054 DOI: 10.3390/cancers15102717] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/07/2023] [Accepted: 05/09/2023] [Indexed: 06/23/2023] Open
Abstract
Macrophages are essential for the human body in both physiological and pathological conditions, engulfing undesirable substances and participating in several processes, such as organism growth, immune regulation, and maintenance of homeostasis. Macrophages play an important role in anti-bacterial and anti-tumoral responses. Aberrance in the phagocytosis of macrophages may lead to the development of several diseases, including tumors. Tumor cells can evade the phagocytosis of macrophages, and "educate" macrophages to become pro-tumoral, resulting in the reduced phagocytosis of macrophages. Hence, harnessing the phagocytosis of macrophages is an important approach to bolster the efficacy of anti-tumor treatment. In this review, we elucidated the underlying phagocytosis mechanisms, such as the equilibrium among phagocytic signals, receptors and their respective signaling pathways, macrophage activation, as well as mitochondrial fission. We also reviewed the recent progress in the area of application strategies on the basis of the phagocytosis mechanism, including strategies targeting the phagocytic signals, antibody-dependent cellular phagocytosis (ADCP), and macrophage activators. We also covered recent studies of Chimeric Antigen Receptor Macrophage (CAR-M)-based anti-tumor therapy. Furthermore, we summarized the shortcomings and future applications of each strategy and look into their prospects with the hope of providing future research directions for developing the application of macrophage phagocytosis-promoting therapy.
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Affiliation(s)
- Si-Yuan Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Yong-Lin Guo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Jia-Wen Tian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - He-Jing Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Rui-Fang Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Ping Gong
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Anesthesiology, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Zi-Li Yu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
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10
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Proteome integral solubility alteration high-throughput proteomics assay identifies Collectin-12 as a non-apoptotic microglial caspase-3 substrate. Cell Death Dis 2023; 14:192. [PMID: 36906641 PMCID: PMC10008626 DOI: 10.1038/s41419-023-05714-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 02/23/2023] [Accepted: 02/27/2023] [Indexed: 03/13/2023]
Abstract
Caspases are a family of proteins mostly known for their role in the activation of the apoptotic pathway leading to cell death. In the last decade, caspases have been found to fulfill other tasks regulating the cell phenotype independently to cell death. Microglia are the immune cells of the brain responsible for the maintenance of physiological brain functions but can also be involved in disease progression when overactivated. We have previously described non-apoptotic roles of caspase-3 (CASP3) in the regulation of the inflammatory phenotype of microglial cells or pro-tumoral activation in the context of brain tumors. CASP3 can regulate protein functions by cleavage of their target and therefore could have multiple substrates. So far, identification of CASP3 substrates has been performed mostly in apoptotic conditions where CASP3 activity is highly upregulated and these approaches do not have the capacity to uncover CASP3 substrates at the physiological level. In our study, we aim at discovering novel substrates of CASP3 involved in the normal regulation of the cell. We used an unconventional approach by chemically reducing the basal level CASP3-like activity (by DEVD-fmk treatment) coupled to a Mass Spectrometry screen (PISA) to identify proteins with different soluble amounts, and consequently, non-cleaved proteins in microglia cells. PISA assay identified several proteins with significant change in their solubility after DEVD-fmk treatment, including a few already known CASP3 substrates which validated our approach. Among them, we focused on the Collectin-12 (COLEC12 or CL-P1) transmembrane receptor and uncovered a potential role for CASP3 cleavage of COLEC12 in the regulation of the phagocytic capacity of microglial cells. Taken together, these findings suggest a new way to uncover non-apoptotic substrates of CASP3 important for the modulation of microglia cell physiology.
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11
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Hoffmann M, Gerlach S, Hoffmann C, Richter N, Hersch N, Csiszár A, Merkel R, Hoffmann B. PEGylation and folic-acid functionalization of cationic lipoplexes-Improved nucleic acid transfer into cancer cells. Front Bioeng Biotechnol 2022; 10:1066887. [PMID: 36619382 PMCID: PMC9811411 DOI: 10.3389/fbioe.2022.1066887] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Efficient and reliable transfer of nucleic acids for therapy applications is a major challenge. Stabilization of lipo- and polyplexes has already been successfully achieved by PEGylation. This modification reduces the interaction with serum proteins and thus prevents the lipoplexes from being cleared by the reticuloendothelial system. Problematically, this stabilization of lipoplexes simultaneously leads to reduced transfer efficiencies compared to non-PEGylated complexes. However, this reduction in transfer efficiency can be used to advantage since additional modification of PEGylated lipoplexes with functional groups enables improved selective transfer into target cells. Cancer cells overexpress folate receptors because of a significantly increased need of folate due to high cell proliferation rates. Thus, additional folate functionalization of PEGylated lipoplexes improves uptake into cancer cells. We demonstrate herein that NHS coupling chemistries can be used to modify two commercially available transfection reagents (Fuse-It-DNA and Lipofectamine® 3000) with NHS-PEG-folate for increased uptake of nucleic acids into cancer cells. Lipoplex characterization and functional analysis in cultures of cancer- and healthy cells clearly demonstrate that functionalization of PEGylated lipoplexes offers a promising method to generate efficient, stable and selective nucleic acid transfer systems.
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Affiliation(s)
| | | | | | | | | | | | | | - Bernd Hoffmann
- Institute of Biological Information Processing, Mechanobiology (IBI-2), Research Center Juelich, Juelich, Germany
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12
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González-Rodríguez P, Cheray M, Keane L, Engskog-Vlachos P, Joseph B. ULK3-dependent activation of GLI1 promotes DNMT3A expression upon autophagy induction. Autophagy 2022; 18:2769-2780. [PMID: 35226587 PMCID: PMC9673947 DOI: 10.1080/15548627.2022.2039993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Macroautophagy/autophagy is a tightly regulated catabolic process, which contributes at baseline level to cellular homeostasis, and upon its stimulation to the adaptive cellular response to intra- and extracellular stress stimuli. Decrease of autophagy activity is occurring upon aging and thought to contribute to age-related-diseases. Recently, we uncovered, upon autophagy induction, the role of de novo DNMT3A (DNA methyltransferase 3 alpha)-mediated DNA methylation on expression of the MAP1LC3 (microtubule associated protein 1 light chain 3) proteins, core components of the autophagy pathway, which resulted in reduced baseline autophagy activity. Here, we report that serine/threonine kinase ULK3 (unc-51 like kinase 3)-dependent activation of GLI1 (GLI family zinc finger 1) contributes to the transcriptional upregulation of DNMT3A gene expression upon autophagy induction, thereby bringing additional understanding of the long-term effect of autophagy induction and a possible mechanism for its decline upon aging, pathological conditions, or in response to treatment interventions.Abbreviations: CBZ: carbamazepine; ChIP: chromatin immunoprecipitation; Clon: clonidine; DNMT3A: DNA methyltransferase 3 alpha; GLI1: GLI family zinc finger 1; GLI2: GLI family zinc finger 2; MAP1LC3: microtubule associated protein 1 light chain 3; MTOR: mechanistic target of rapamycin kinase; PLA: proximity ligation assay; RT-qPCR: quantitative reverse transcription PCR; shRNA: small hairpin RNA; siRNA: small interfering RNA; Treh: trehalose; ULK3: unc-51 like kinase 3.
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Affiliation(s)
| | - Mathilde Cheray
- Institute of Environmental MedicineToxicology Unit, Karolinska Institutet, StockholmSweden
| | - Lily Keane
- Institute of Environmental MedicineToxicology Unit, Karolinska Institutet, StockholmSweden
| | | | - Bertrand Joseph
- Institute of Environmental MedicineToxicology Unit, Karolinska Institutet, StockholmSweden,Division of Biochemistry, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway,CONTACT Bertrand Joseph Institute of Environmental Medicine, Toxicology Unit, Karolinska Institutet, Stockholm17177, Sweden; Division of Biochemistry, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
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13
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Silver A, Feier D, Ghosh T, Rahman M, Huang J, Sarkisian MR, Deleyrolle LP. Heterogeneity of glioblastoma stem cells in the context of the immune microenvironment and geospatial organization. Front Oncol 2022; 12:1022716. [PMID: 36338705 PMCID: PMC9628999 DOI: 10.3389/fonc.2022.1022716] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/03/2022] [Indexed: 01/16/2023] Open
Abstract
Glioblastoma (GBM) is an extremely aggressive and incurable primary brain tumor with a 10-year survival of just 0.71%. Cancer stem cells (CSCs) are thought to seed GBM's inevitable recurrence by evading standard of care treatment, which combines surgical resection, radiotherapy, and chemotherapy, contributing to this grim prognosis. Effective targeting of CSCs could result in insights into GBM treatment resistance and development of novel treatment paradigms. There is a major ongoing effort to characterize CSCs, understand their interactions with the tumor microenvironment, and identify ways to eliminate them. This review discusses the diversity of CSC lineages present in GBM and how this glioma stem cell (GSC) mosaicism drives global intratumoral heterogeneity constituted by complex and spatially distinct local microenvironments. We review how a tumor's diverse CSC populations orchestrate and interact with the environment, especially the immune landscape. We also discuss how to map this intricate GBM ecosystem through the lens of metabolism and immunology to find vulnerabilities and new ways to disrupt the equilibrium of the system to achieve improved disease outcome.
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Affiliation(s)
- Aryeh Silver
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States
| | - Diana Feier
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States
| | - Tanya Ghosh
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States
| | - Maryam Rahman
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States,Preston A. Wells, Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, FL, United States
| | - Jianping Huang
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States,Preston A. Wells, Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, FL, United States
| | - Matthew R. Sarkisian
- Preston A. Wells, Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, FL, United States,Department of Neuroscience, McKnight Brain Institute, University of Florida, Gainesville, FL, United States
| | - Loic P. Deleyrolle
- Department of Neurosurgery, Adam Michael Rosen Neuro-Oncology Laboratories, University of Florida, Gainesville, FL, United States,Preston A. Wells, Jr. Center for Brain Tumor Therapy, University of Florida, Gainesville, FL, United States,*Correspondence: Loic P. Deleyrolle,
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14
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Qi M, Sun LA, Zheng LR, Zhang J, Han YL, Wu F, Zhao J, Niu WH, Fei MX, Jiang XC, Zhou ML. Expression and potential role of FOSB in glioma. Front Mol Neurosci 2022; 15:972615. [PMID: 36311014 PMCID: PMC9597691 DOI: 10.3389/fnmol.2022.972615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Background FOSB is reported to be an oncogene in a variety of tumors. However, the expression and role of FOSB in glioma remain obscure. In this study, we aimed to explore the expression of FOSB in glioma and its biological role in glioblastoma multiforme (GBM). Methods Western blot, immunohistochemical staining, and quantitative real-time polymerase chain reaction (RT-qPCR) were used to detect the expression of FOSB in clinical samples. FOSB was knocked down in cells to determine the effects of FOSB on the phenotypic changes of tumors by plate cloning, CCK-8 assay, and Transwell assay. Finally, subcutaneous tumorigenesis in nude mice was used to observe the tumorigenesis of glioma cell lines after the knockdown of the FOSB gene. Results FOSB expression was higher in glioma compared with normal brain tissue. After the downregulation of FOSB, the expression of cleaved caspase-3 increased. Plate cloning and CCK-8 experiments showed that the proliferation of glioma cell lines decreased. The Transwell assay demonstrated that the glioblastoma cell lines had lower migration ability after the knockdown of FOSB. Finally, the tumor volume of U87 glioma cells in group sh-FOSB was smaller than that in the control group. The TUNEL staining in vitro showed that the apoptosis of sh-FOSB glioma cells increased. Conclusion FOSB was highly expressed in glioma tissues. The viability of glioma cells decreased, and the ability of glioma cells to proliferate and migrate was reduced when FOSB was downregulated. Hence, FOSB may promote the development and migration of gliomas.
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Affiliation(s)
- Min Qi
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Le-an Sun
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Lan-rong Zheng
- Department of Pathology, Wannan Medical College, Wuhu, China
| | - Jia Zhang
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
| | - Yan-ling Han
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Feng Wu
- Department of Anatomy, Wannan Medical College, Wuhu, China
| | - Jian Zhao
- Department of Anatomy, Wannan Medical College, Wuhu, China
| | - Wen-hao Niu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Mao-xing Fei
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xiao-chun Jiang
- The Translational Research Institute for Neurological Disorders of Wannan Medical College, Department of Neurosurgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, China
- Xiao-chun Jiang
| | - Meng-liang Zhou
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
- *Correspondence: Meng-liang Zhou
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15
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Hermawan A, Wulandari F, Hanif N, Utomo RY, Jenie RI, Ikawati M, Tafrihani AS. Identification of potential targets of the curcumin analog CCA-1.1 for glioblastoma treatment : integrated computational analysis and in vitro study. Sci Rep 2022; 12:13928. [PMID: 35977996 PMCID: PMC9385707 DOI: 10.1038/s41598-022-18348-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 08/10/2022] [Indexed: 11/09/2022] Open
Abstract
The treatment of glioblastoma multiforme (GBM) is challenging owing to its localization in the brain, the limited capacity of brain cells to repair, resistance to conventional therapy, and its aggressiveness. Curcumin has anticancer activity against aggressive cancers, such as leukemia, and GBM; however, its application is limited by its low solubility and bioavailability. Chemoprevention curcumin analog 1.1 (CCA-1.1), a curcumin analog, has better solubility and stability than those of curcumin. In this study, we explored potential targets of CCA-1.1 in GBM (PTCGs) by an integrated computational analysis and in vitro study. Predicted targets of CCA-1.1 obtained using various databases were subjected to comprehensive downstream analyses, including functional annotation, disease and drug association analyses, protein–protein interaction network analyses, analyses of genetic alterations, expression, and associations with survival and immune cell infiltration. Our integrative bioinformatics analysis revealed four candidate targets of CCA-1.1 in GBM: TP53, EGFR, AKT1, and CASP3. In addition to targeting specific proteins with regulatory effects in GBM, CCA-1.1 has the capacity to modulate the immunological milieu. Cytotoxicity of CCA-1.1 was lower than TMZ with an IC50 value of 9.8 μM compared to TMZ with an IC50 of 40 μM. mRNA sequencing revealed EGFR transcript variant 8 was upregulated, whereas EGFRvIII was downregulated in U87 cells after treatment with CCA-1.1. Furthermore, a molecular docking analysis suggested that CCA-1.1 inhibits EGFR with various mutations in GBM, which was confirmed using molecular dynamics simulation, wherein the binding between CCA-1.1 with the mutant EGFR L861Q was stable. For successful clinical translation, the effects of CCA-1.1 need to be confirmed in laboratory studies and clinical trials.
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Affiliation(s)
- Adam Hermawan
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia. .,Laboratory of Macromolecular Engineering, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia.
| | - Febri Wulandari
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
| | - Naufa Hanif
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
| | - Rohmad Yudi Utomo
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia.,Laboratory of Medicinal Chemistry, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
| | - Riris Istighfari Jenie
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia.,Laboratory of Macromolecular Engineering, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
| | - Muthi Ikawati
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia.,Laboratory of Macromolecular Engineering, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
| | - Ahmad Syauqy Tafrihani
- Faculty of Pharmacy, Cancer Chemoprevention Research Center, Universitas Gadjah Mada Sekip Utara II, Yogyakarta, 55281, Indonesia
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16
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Gani M, Xodo LE, Rapozzi V. Bystander effect in photosensitized prostate cancer cells with a different grade of malignancy: The role of nitric oxide. Nitric Oxide 2022; 128:25-36. [PMID: 35970264 DOI: 10.1016/j.niox.2022.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 11/30/2022]
Abstract
Photodynamic therapy (PDT) is a therapeutic modality based on the simultaneous action of three elements: photosensitizer, light and oxygen. This triad generates singlet oxygen and reactive oxygen species that can reduce the mass of a tumor. PDT is also able to stimulate iNOS, the enzyme that generates nitric oxide (NO). The role of NO in PDT-treated cancer cells has been investigated in several studies. They showed that low iNOS/NO levels stimulate signaling pathways that promote tumor survival, while high iNOS/NO levels arrest tumor growth. There is increasing evidence that ROS/RNS control both proliferation and migration of cells in the vicinity of PDT-treated tumor cells (so-called bystander cells). In this work, we addressed the question of how NO, which is generated by weak PDT, affects bystander cells. We used a conditioned medium: medium of PDT-treated tumor cells containing the stressors produced by the cells was added to untreated cells mimicking the neighboring bystander cells to investigate whether the conditioned medium affects cell proliferation. We found that low-level NO in prostate cancer cells affects the bystander tumor cells in a manner that depends on their malignancy grade.
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Affiliation(s)
- Mariachiara Gani
- Department of Medicine, Laboratory of Biochemistry, University of Udine, P.le Kolbe 4, 33100, Udine, Italy
| | - Luigi E Xodo
- Department of Medicine, Laboratory of Biochemistry, University of Udine, P.le Kolbe 4, 33100, Udine, Italy
| | - Valentina Rapozzi
- Department of Medicine, Laboratory of Biochemistry, University of Udine, P.le Kolbe 4, 33100, Udine, Italy.
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17
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Directed evolution of adeno-associated virus for efficient gene delivery to microglia. Nat Methods 2022; 19:976-985. [PMID: 35879607 DOI: 10.1038/s41592-022-01547-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 06/10/2022] [Indexed: 12/12/2022]
Abstract
As the resident immune cells in the central nervous system (CNS), microglia orchestrate immune responses and dynamically sculpt neural circuits in the CNS. Microglial dysfunction and mutations of microglia-specific genes have been implicated in many diseases of the CNS. Developing effective and safe vehicles for transgene delivery into microglia will facilitate the studies of microglia biology and microglia-associated disease mechanisms. Here, we report the discovery of adeno-associated virus (AAV) variants that mediate efficient in vitro and in vivo microglial transduction via directed evolution of the AAV capsid protein. These AAV-cMG and AAV-MG variants are capable of delivering various genetic payloads into microglia with high efficiency, and enable sufficient transgene expression to support fluorescent labeling, Ca2+ and neurotransmitter imaging and genome editing in microglia in vivo. Furthermore, single-cell RNA sequencing shows that the AAV-MG variants mediate in vivo transgene delivery without inducing microglia immune activation. These AAV variants should facilitate the use of various genetically encoded sensors and effectors in the study of microglia-related biology.
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18
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Lin YJ, Wu CYJ, Wu JY, Lim M. The Role of Myeloid Cells in GBM Immunosuppression. Front Immunol 2022; 13:887781. [PMID: 35711434 PMCID: PMC9192945 DOI: 10.3389/fimmu.2022.887781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/25/2022] [Indexed: 12/12/2022] Open
Abstract
Gliomas are intrinsic brain tumors that originate from glial cells. Glioblastoma (GBM) is the most aggressive glioma type and resistant to immunotherapy, mainly due to its unique immune environment. Dimensional data analysis reveals that the intra-tumoral heterogeneity of immune cell populations in the glioma microenvironment is largely made up of cells of myeloid lineage. Conventional therapies of combined surgery, chemotherapy and radiotherapy have achieved limited improvements in the prognosis of glioma patients, as myeloid cells are prominent mediators of immune and therapeutic responses—like immunotherapy resistance—in glioma. Myeloid cells are frequently seen in the tumor microenvironment (TME), and they are polarized to promote tumorigenesis and immunosuppression. Reprogramming myeloid cells has emerged as revolutionary, new types of immunotherapies for glioma treatment. Here we detail the current advances in classifying epigenetic, metabolic, and phenotypic characteristics and functions of different populations of myeloid cells in glioma TME, including myeloid-derived suppressor cells (MDSCs), glioma-associated microglia/macrophages (GAMs), glioma-associated neutrophils (GANs), and glioma-associated dendritic cells (GADCs), as well as the mechanisms underlying promotion of tumorigenesis. The final goal of this review will be to provide new insights into novel therapeutic approaches for specific targeting of myeloid cells to improve the efficacy of current treatments in glioma patients.
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Affiliation(s)
- Ya-Jui Lin
- Department of Neurosurgery, Chang Gung Medical Foundation, Linkou Medical Center, Taoyuan, Taiwan.,Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Caren Yu-Ju Wu
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, United States.,Department of Neurosurgery, Chang Gung Medical Foundation, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Janet Yuling Wu
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Michael Lim
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, CA, United States
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Yin W, Ping YF, Li F, Lv SQ, Zhang XN, Li XG, Guo Y, Liu Q, Li TR, Yang LQ, Yang KD, Liu YQ, Luo CH, Luo T, Wang WY, Mao M, Luo M, He ZC, Cao MF, Chen C, Miao JY, Zeng H, Wang C, Zhou L, Yang Y, Yang X, Wang QH, Feng H, Shi Y, Bian XW. A map of the spatial distribution and tumour-associated macrophage states in glioblastoma and grade-4 IDH-mutant astrocytoma. J Pathol 2022; 258:121-135. [PMID: 35723032 DOI: 10.1002/path.5984] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/08/2022] [Accepted: 06/16/2022] [Indexed: 11/10/2022]
Abstract
Tumour-associated macrophages (TAMs) abundantly infiltrate high-grade gliomas and orchestrate immune response, but their diversity in isocitrate dehydrogenase (IDH)-differential grade-4 gliomas remains largely unknown. This study aimed to dissect the transcriptional states, spatial distribution and clinicopathological significance of distinct monocyte-derived TAM (Mo-TAM) and microglia-derived TAM (Mg-TAM) clusters across glioblastoma-IDH-wildtype and astrocytoma-IDH-mutant-grade 4 (Astro-IDH-mut-G4). Single-cell RNA sequencing was performed on four cases of human glioblastoma and three cases of Astro-IDH-mut-G4. Cell clustering, single-cell regulatory network inference and gene set enrichment analysis were performed to characterize the functional states of myeloid clusters. Spatial distribution of TAM subsets was determined in human glioma tissues using multiplex immunostaining. The prognostic value of different TAM-cluster specific geneset was evaluated in the TCGA glioma cohort. Profiling and unbiased clustering of 24,227 myeloid cells from glioblastoma and Astro-IDH-mut-G4 identified 9 myeloid cell clusters including monocyte, six Mo/Mg-TAM subsets, dendritic cell, and proliferative myeloid cluster. Different Mo/Mg-TAM clusters manifest functional and transcriptional diversity controlled by specific regulons. Multiplex immunostaining of subset-specific markers identified spatial enrichment of distinct TAM clusters at peri-vascular/necrotic areas in tumour parenchyma or at tumour-brain interface. Glioblastoma harboured a substantially higher number of monocytes and Mo-TAM-inflammatory cluster, whereas Astro-IDH-mut-G4 was with higher proportion of TAM subset mediating antigen presentation. Glioblastomas with higher proportion of monocytes exhibited a mesenchymal signature, increased angiogenesis and worse patient outcome. Our findings provide insight into myeloid cell diversity and its clinical relevance in IDH-differential grade-4 gliomas, and may serve as a resource for immunotherapy development. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Wen Yin
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Yi-Fang Ping
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Fei Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, PR China
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, PR China
| | - Xiao-Ning Zhang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Xue-Gang Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, PR China
| | - Ying Guo
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Qing Liu
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Tian-Ran Li
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Liu-Qing Yang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Kai-Di Yang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Yu-Qi Liu
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Chun-Hua Luo
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Tao Luo
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Wen-Ying Wang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Min Mao
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Min Luo
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Zhi-Cheng He
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Mian-Fu Cao
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Cong Chen
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Jing-Ya Miao
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Hui Zeng
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Chao Wang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Lei Zhou
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Ying Yang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Xi Yang
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Qiang-Hu Wang
- Department of Bioinformatics, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, PR China
| | - Yu Shi
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Centre, Southwest Hospital, Third Military Medical University (Army Medical University) and Key Laboratory of Tumour Immunopathology, Ministry of Education of China, Chongqing, PR China
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TRX2/Rab35 Interaction Impairs Exosome Secretion by Inducing Rab35 Degradation. Int J Mol Sci 2022; 23:ijms23126557. [PMID: 35743001 PMCID: PMC9224307 DOI: 10.3390/ijms23126557] [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: 05/13/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 11/17/2022] Open
Abstract
Given that exosomes mediate intercellular communication by delivering cellular components to recipient cells or tissue, they have the potential to be engineered to deliver therapeutic payloads. However, the regulatory mechanism of exosome secretion is poorly understood. In addition, mitochondrial components have been found in exosomes, suggesting communication between mitochondria and exosomes. However, the molecular mechanism of the mitochondria and vesicle interaction remains unclear. Here, we showed that mitochondrial thioredoxin 2 (TRX2) decreased exosome concentrations and inhibited HCT116 cell migration. Coimmunoprecipitation/mass spectrometry (Co-IP/MS) showed that TRX2 interacted with Rab35. TRX2 and Rab35 bound to each other at their N-terminal motifs and colocalized on mitochondria. Furthermore, TRX2 induced Rab35 degradation, resulting in impaired exosome secretion. Additionally, Rab35 mediated the suppressive effects of TRX2 on cell migration, and TRX2 suppressed cell migration through exosomes. Taken together, this study first found an interaction between TRX2 and Rab35. These results revealed a new role for TRX2 in the regulation of exosome secretion and cell migration and explained the upstream regulatory mechanism of Rab35. Furthermore, these findings also provide new molecular evidence for communication between mitochondria and vesicles.
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Dialogue among Lymphocytes and Microglia in Glioblastoma Microenvironment. Cancers (Basel) 2022; 14:cancers14112632. [PMID: 35681612 PMCID: PMC9179556 DOI: 10.3390/cancers14112632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 02/06/2023] Open
Abstract
Simple Summary In this review, we summarize in vitro and in vivo studies related to glioblastoma models and human patients to outline the symbiotic bidirectional interaction between microglia, lymphocytes, and tumor cells that develops during tumor progression. Particularly, we highlight the current experimental therapeutic approaches that aim to shape these interplays, such as adeno-associated virus (AAV) delivery and CAR-T and -NK cell infusion, and to modulate the tumor microenvironment in an anti-tumoral way, thus counteracting glioblastoma growth. Abstract Microglia and lymphocytes are fundamental constituents of the glioblastoma microenvironment. In this review, we summarize the current state-of-the-art knowledge of the microglial role played in promoting the development and aggressive hallmarks of this deadly brain tumor. Particularly, we report in vitro and in vivo studies related to glioblastoma models and human patients to outline the symbiotic bidirectional interaction between microglia, lymphocytes, and tumor cells that develops during tumor progression. Furthermore, we highlight the current experimental therapeutic approaches that aim to shape these interplays, such as adeno-associated virus (AAV) delivery and CAR-T and -NK cell infusion, and to modulate the tumor microenvironment in an anti-tumoral way, thus counteracting glioblastoma growth.
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Sheng D, Zhao B, Zhu W, Wang T, Peng Y. Scutellaria barbata D.Don (SBD) extracts suppressed tumor growth, metastasis and angiogenesis in Prostate cancer via PI3K/Akt pathway. BMC Complement Med Ther 2022; 22:120. [PMID: 35505400 PMCID: PMC9066752 DOI: 10.1186/s12906-022-03587-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/08/2022] [Indexed: 11/17/2022] Open
Abstract
Background Scutellaria barbata D.Don (SBD) is derived from the dried whole plant of Labiate which has been widely used to treat patients with multiple cancer. It was previously reported that the ethanol extract of SBD is able to promote apoptosis, and inhibit cell proliferation and angiogenesis in cancer. Materials and methods CCK8, Edu assays and colony formation assay were performed to assess the effect of SBD on PCa cell growth. Effect of SBD on apoptosis and cell cycle was detected by flow cytometry. Transwell and wounding healing assay were conducted to detect the invasion and migration activities of PCa cells. Western blot was employed to detect the protein expression. 2RRV1 mouse xenograft model was established to detect the effect of SBD on prostate cancer. Angiogenesis was analysed by coculturing PCa cell lines and HUVECs. Results The results showed that SBD induced a significant decrease in cell viability and clonogenic growth in a dose-dependent manner. SBD induced cell apoptosis and cell cycle G2/M phase arrest by inactivating PI3K/AKT signalling pathway. Treatment with SBD also significantly decreased the cell migration and invasion via phenotypic inversion of EMT that was characterized by the increased expression of E-cadherin and Vimentin, and decreased expression of N-cadherin, which could be partially attributed to inhibiting PI3K/AKT signalling pathway. Subsequently, using AKT inhibitor MK2206, we concluded that PI3K/AKT are also involved in cell apoptosis and metastasis of PCa cells stimulated by SBD. Apart from its direct effects on PCa cells, SBD also exhibited anti-angiogenic properties. SBD alone or conditioned media from SBD-treated PCa cells reduced HUVEC tube formation on Matrigel without affecting HUVEC viability. Furthermore, 22RV1 xenograft C57BL/6 mice treated with SBD in vivo showed a significant inhibitory in tumour size and tumour weight without toxicity. In addition, administration with medium- or high-dose of SBD significantly inhibited the cell proliferation and enhanced the damage to tumour tissues. Conclusions Collectively, our in vitro and in vivo findings suggest that SBD has the potential to develop into a safe and potent alternative therapy for PCa patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03587-0.
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Affiliation(s)
- Dongya Sheng
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bei Zhao
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenjing Zhu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tiantian Wang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yu Peng
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Reid KM, Kitchener EJA, Butler CA, Cockram TOJ, Brown GC. Brain Cells Release Calreticulin That Attracts and Activates Microglia, and Inhibits Amyloid Beta Aggregation and Neurotoxicity. Front Immunol 2022; 13:859686. [PMID: 35514983 PMCID: PMC9065406 DOI: 10.3389/fimmu.2022.859686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/28/2022] [Indexed: 11/22/2022] Open
Abstract
Calreticulin is a chaperone, normally found in the endoplasmic reticulum, but can be released by macrophages into the extracellular medium. It is also found in cerebrospinal fluid bound to amyloid beta (Aβ). We investigated whether brain cells release calreticulin, and whether extracellular calreticulin had any effects on microglia and neurons relevant to neuroinflammation and neurodegeneration. We found that microglia release nanomolar levels of calreticulin when inflammatory-activated with lipopolysaccharide, when endoplasmic reticulum stress was induced by tunicamycin, or when cell death was induced by staurosporine, and that neurons release calreticulin when crushed. Addition of nanomolar levels of extracellular calreticulin was found to chemoattract microglia, and activate microglia to release cytokines TNF-α, IL-6 and IL-1β, as well as chemokine (C-C motif) ligand 2. Calreticulin blocked Aβ fibrillization and modified Aβ oligomerization, as measured by thioflavin T fluorescence and transmission electron microscopy. Extracellular calreticulin also altered microglial morphology and proliferation, and prevented Aβ-induced neuronal loss in primary neuron-glial cultures. Thus, calreticulin is released by microglia and neurons, and acts: as an alarmin to recruit and activate microglia, as an extracellular chaperone to prevent Aβ aggregation, and as a neuroprotectant against Aβ neurotoxicity.
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Affiliation(s)
| | | | | | | | - Guy C. Brown
- Department of Biochemistry, University of Cambridge, Cambridge, United Kingdom
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Yingrui W, Zheng L, Guoyan L, Hongjie W. Research progress of active ingredients of Scutellaria baicalensis in the treatment of type 2 diabetes and its complications. Biomed Pharmacother 2022; 148:112690. [DOI: 10.1016/j.biopha.2022.112690] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/21/2022] [Accepted: 02/02/2022] [Indexed: 12/13/2022] Open
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Liu C, Hao D, Ai M, Zhang Y, Li J, Xu C. The long non-coding RNA UPAT promotes gastric cancer cell progression via UHRF1. Genes Genomics 2022; 44:1283-1300. [PMID: 35294719 DOI: 10.1007/s13258-022-01235-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/19/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND LncRNA ubiquitin-like with PHD and RING finger domains 1 (UHRF1) protein associated transcript (UPAT) regulates the progression of many cancers. However, its role in gastric cancer (GC) is less frequently reported. OBJECTIVE In the context of the promoting effect of lncRNA on modulating GC progression, detailed insights into the role and underlying mechanism of UPAT in GC are the foothold in this study. METHODS Overall survival was calculated. The mRNA expressions of UPAT and UHRF1 were measured by qRT-PCR, and the protein expressions of UHRF1, Cyclin D1 and cleaved caspase-3 were determined by western blot. Cell viability, growth, migration and invasion were assessed by CCK-8, colony formation, wound healing and Transwell assays, respectively. Apoptosis rate and cell cycle were assayed by flow cytometry. RESULTS UPAT was overexpressed in GC tissue and cell lines. Decreased UPAT level was associated with higher overall survival. Down-regulation of UPAT diminished cell proliferation, Cyclin D1 expression, and migration and invasion rates, increased apoptosis rate and cleaved caspase-3 expression, and blocked cell cycle in AGS and NCI-N87 cells. UPAT expression in GC was positively correlated with UHRF1 expression. UHRF1 overexpression offset the inhibitory effects of UPAT down-regulation on cell proliferation, migration, invasion and cell cycle, and partially reversed the positive effect of UPAT down-regulation on apoptosis. CONCLUSION UPAT might positively regulate the progression of GC via interacting with UHRF1. The UHRF1/UPAT axis revealed in the present study may provide a promising approach to intervene in the progression of GC.
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Affiliation(s)
- Chaoyong Liu
- Department of Gastroenterology, First Affiliated Hospital of Yangtze University, No. 8, Hangkong Road, Shashi District, Jingzhou City, 434000, Hubei, China
| | - De Hao
- Blood Purification Center, First Affiliated Hospital of Yangtze University, Jingzhou City, 434000, Hubei, China
| | - Minghua Ai
- Department of Gastroenterology, First Affiliated Hospital of Yangtze University, No. 8, Hangkong Road, Shashi District, Jingzhou City, 434000, Hubei, China
| | - Yan Zhang
- Department of Gastroenterology, First Affiliated Hospital of Yangtze University, No. 8, Hangkong Road, Shashi District, Jingzhou City, 434000, Hubei, China
| | - Jie Li
- Department of Gastroenterology, First Affiliated Hospital of Yangtze University, No. 8, Hangkong Road, Shashi District, Jingzhou City, 434000, Hubei, China
| | - Chao Xu
- Department of Gastroenterology, First Affiliated Hospital of Yangtze University, No. 8, Hangkong Road, Shashi District, Jingzhou City, 434000, Hubei, China.
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Harnessing oxidative stress for anti-glioma therapy. Neurochem Int 2022; 154:105281. [PMID: 35038460 DOI: 10.1016/j.neuint.2022.105281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 12/22/2021] [Accepted: 01/10/2022] [Indexed: 02/06/2023]
Abstract
Glioma cells use intermediate levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) for growth and invasion, and suppressing these reactive molecules thus may compromise processes that are vital for glioma survival. Increased oxidative stress has been identified in glioma cells, in particular in glioma stem-like cells. Studies have shown that these cells harbor potent antioxidant defenses, although endogenous protection against nitrosative stress remains understudied. The enhancement of oxidative or nitrosative stress offers a potential target for triggering glioma cell death, but whether oxidative and nitrosative stresses can be combined for therapeutic effects requires further research. The optimal approach of harnessing oxidative stress for anti-glioma therapy should include the induction of free radical-induced oxidative damage and the suppression of antioxidant defense mechanisms selectively in glioma cells. However, selective induction of oxidative/nitrosative stress in glioma cells remains a therapeutic challenge, and research into selective drug delivery systems is ongoing. Because of multifactorial mechanisms of glioma growth, progression, and invasion, prospective oncological therapies may include not only therapeutic oxidative/nitrosative stress but also inhibition of oncogenic kinases, antioxidant molecules, and programmed cell death mediators.
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Arrieta VA, Najem H, Petrosyan E, Lee-Chang C, Chen P, Sonabend AM, Heimberger AB. The Eclectic Nature of Glioma-Infiltrating Macrophages and Microglia. Int J Mol Sci 2021; 22:13382. [PMID: 34948178 PMCID: PMC8705822 DOI: 10.3390/ijms222413382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 11/23/2022] Open
Abstract
Glioblastomas (GBMs) are complex ecosystems composed of highly multifaceted tumor and myeloid cells capable of responding to different environmental pressures, including therapies. Recent studies have uncovered the diverse phenotypical identities of brain-populating myeloid cells. Differences in the immune proportions and phenotypes within tumors seem to be dictated by molecular features of glioma cells. Furthermore, increasing evidence underscores the significance of interactions between myeloid cells and glioma cells that allow them to evolve in a synergistic fashion to sustain tumor growth. In this review, we revisit the current understanding of glioma-infiltrating myeloid cells and their dialogue with tumor cells in consideration of their increasing recognition in response and resistance to immunotherapies as well as the immune impact of the current chemoradiotherapy used to treat gliomas.
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Affiliation(s)
- Víctor A. Arrieta
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
- PECEM, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04360, Mexico
| | - Hinda Najem
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
| | - Edgar Petrosyan
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
| | - Catalina Lee-Chang
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
| | - Peiwen Chen
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
| | - Adam M. Sonabend
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
| | - Amy B. Heimberger
- Department of Neurosurgery, Lou and Jean Malnati Brain Tumor Institute, Robert H Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA; (V.A.A.); (H.N.); (E.P.); (C.L.-C.); (P.C.)
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Zeng J, Li X, Sander M, Zhang H, Yan G, Lin Y. Oncolytic Viro-Immunotherapy: An Emerging Option in the Treatment of Gliomas. Front Immunol 2021; 12:721830. [PMID: 34675919 PMCID: PMC8524046 DOI: 10.3389/fimmu.2021.721830] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/16/2021] [Indexed: 01/17/2023] Open
Abstract
The prognosis of malignant gliomas remains poor, with median survival fewer than 20 months and a 5-year survival rate merely 5%. Their primary location in the central nervous system (CNS) and its immunosuppressive environment with little T cell infiltration has rendered cancer therapies mostly ineffective, and breakthrough therapies such as immune checkpoint inhibitors (ICIs) have shown limited benefit. However, tumor immunotherapy is developing rapidly and can help overcome these obstacles. But for now, malignant gliomas remain fatal with short survival and limited therapeutic options. Oncolytic virotherapy (OVT) is a unique antitumor immunotherapy wherein viruses selectively or preferentially kill tumor cells, replicate and spread through tumors while inducing antitumor immune responses. OVTs can also recondition the tumor microenvironment and improve the efficacy of other immunotherapies by escalating the infiltration of immune cells into tumors. Some OVTs can penetrate the blood-brain barrier (BBB) and possess tropism for the CNS, enabling intravenous delivery. Despite the therapeutic potential displayed by oncolytic viruses (OVs), optimizing OVT has proved challenging in clinical development, and marketing approvals for OVTs have been rare. In June 2021 however, as a genetically engineered OV based on herpes simplex virus-1 (G47Δ), teserpaturev got conditional and time-limited approval for the treatment of malignant gliomas in Japan. In this review, we summarize the current state of OVT, the synergistic effect of OVT in combination with other immunotherapies as well as the hurdles to successful clinical use. We also provide some suggestions to overcome the challenges in treating of gliomas.
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Affiliation(s)
- Jiayi Zeng
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiangxue Li
- Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Peking University, Beijing, China
| | - Max Sander
- Department of International Cooperation, Guangzhou Virotech Pharmaceutical Co., Ltd., Guangzhou, China
| | - Haipeng Zhang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China
| | - Guangmei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yuan Lin
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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Li X, Liu M, Zhao J, Ren T, Yan X, Zhang L, Wang X. Research Progress About Glioma Stem Cells in the Immune Microenvironment of Glioma. Front Pharmacol 2021; 12:750857. [PMID: 34630121 PMCID: PMC8495125 DOI: 10.3389/fphar.2021.750857] [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] [Received: 07/31/2021] [Accepted: 09/13/2021] [Indexed: 12/12/2022] Open
Abstract
Gliomas are the most common primary tumors of the central nervous system. Due to the existence of the blood-brain barrier and its unique regional immune characteristics, the study of the immune microenvironment of gliomas is particularly important. Glioma stem cells are an important cause of initiating glioma, promoting tumor progression and leading to tumor recurrence. Immunotherapeutic strategies targeting glioma stem cells have become the focus of current research. This paper will focus on the research progress of glioma stem cells in the immune microenvironment of glioma to provide the basis for the immunotherapy of glioma.
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Affiliation(s)
- Xiangyu Li
- Department of Neurosurgery, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ming Liu
- Department of Neurosurgery, Ningde Municipal Hospital Affiliated of Ningde Normal College, Ningde, China
| | - Junfeng Zhao
- Department of Neurosurgery, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Tong Ren
- Department of Neurosurgery, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xin Yan
- Department of Medical Oncology, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lijun Zhang
- Department of Ophthalmology, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xun Wang
- Department of Neurosurgery, The Third People's Hospital of Dalian, Non-Directly Affiliated Hospital of Dalian Medical University, Dalian, China
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Parmigiani E, Scalera M, Mori E, Tantillo E, Vannini E. Old Stars and New Players in the Brain Tumor Microenvironment. Front Cell Neurosci 2021; 15:709917. [PMID: 34690699 PMCID: PMC8527006 DOI: 10.3389/fncel.2021.709917] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/04/2021] [Indexed: 12/12/2022] Open
Abstract
In recent years, the direct interaction between cancer cells and tumor microenvironment (TME) has emerged as a crucial regulator of tumor growth and a promising therapeutic target. The TME, including the surrounding peritumoral regions, is dynamically modified during tumor progression and in response to therapies. However, the mechanisms regulating the crosstalk between malignant and non-malignant cells are still poorly understood, especially in the case of glioma, an aggressive form of brain tumor. The presence of unique brain-resident cell types, namely neurons and glial cells, and an exceptionally immunosuppressive microenvironment pose additional important challenges to the development of effective treatments targeting the TME. In this review, we provide an overview on the direct and indirect interplay between glioma and neuronal and glial cells, introducing new players and mechanisms that still deserve further investigation. We will focus on the effects of neural activity and glial response in controlling glioma cell behavior and discuss the potential of exploiting these cellular interactions to develop new therapeutic approaches with the aim to preserve proper brain functionality.
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Affiliation(s)
- Elena Parmigiani
- Embryology and Stem Cell Biology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Marta Scalera
- Neuroscience Institute, Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy
| | | | - Elena Tantillo
- Neuroscience Institute, Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy
| | - Eleonora Vannini
- Neuroscience Institute, Consiglio Nazionale delle Ricerche (CNR), Pisa, Italy
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Cucurbitacin E inhibits esophageal carcinoma cell proliferation, migration, and invasion by suppressing Rac1 expression through PI3K/AKT/mTOR pathway. Anticancer Drugs 2021; 31:847-855. [PMID: 32568828 DOI: 10.1097/cad.0000000000000961] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As an oxygenated tetracyclic triterpenoid, Cucurbitacin E (CuE) possesses potential antitumor properties in sorts of malignancies. However, its effect on human esophageal carcinoma cells has not been previously unearthed, and the mechanism underlying its anticarcinoma activity remains vague. Hence, this study was arranged to probe the function of CuE on esophageal carcinoma cells and its specific mechanism. Human esophageal carcinoma cells (ECA109 and EC9706) and human normal esophageal epithelial cells (Het-1A) were selected for subsequent experiments. The expression levels of Rac1 in esophageal carcinoma cells were measured. After transfection of sh-Rac1 or pCDNA3.1-Rac1, esophageal carcinoma cells were exposed to CuE. Then, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and 5-ethynyl-2'-deoxyuridine staining were utilized for measurement of cell proliferation ability, cell scratch assay for inspection of cell migration rate, and Transwell for detection of cell invasion ability. The phosphorylation levels of protein kinase B and mTOR were analyzed by Western blot. Rac1 was highly expressed in esophageal carcinoma cells. Transfection of sh-Rac1 in esophageal carcinoma cells resulted in suppression on cell proliferation, migration, and invasion, as well as downregulated phosphorylation levels of AKT and mammalian target of rapamycin (mTOR) in esophageal carcinoma cells, while transfection of pCDNA3.1-Rac1 had an opposite effect, implicating that Rac1 can promote the viability of esophageal carcinoma cells. Esophageal carcinoma cells subjected to CuE treatment had decreased expression of Rac1, suppressed cell viability, and decreased phosphorylation levels of AKT and mTOR. Transfection of pCDNA3.1-Rac1 and CuE treatment in esophageal carcinoma cells enhanced viability of esophageal carcinoma cells and promoted the phosphorylation levels of AKT and mTOR in comparison with cells treated with CuE alone. CuE inhibits proliferation, invasion, and migration of esophageal carcinoma cells via downregulating Rac1 to block the phosphoinositide 3-kinase/AKT/mTOR pathway.
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Friess L, Cheray M, Keane L, Grabert K, Joseph B. Atg7 deficiency in microglia drives an altered transcriptomic profile associated with an impaired neuroinflammatory response. Mol Brain 2021; 14:87. [PMID: 34082793 PMCID: PMC8173846 DOI: 10.1186/s13041-021-00794-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/18/2021] [Indexed: 02/08/2023] Open
Abstract
Microglia, resident immunocompetent cells of the central nervous system, can display a range of reaction states and thereby exhibit distinct biological functions across development, adulthood and under disease conditions. Distinct gene expression profiles are reported to define each of these microglial reaction states. Hence, the identification of modulators of selective microglial transcriptomic signature, which have the potential to regulate unique microglial function has gained interest. Here, we report the identification of ATG7 (Autophagy-related 7) as a selective modulator of an NF-κB-dependent transcriptional program controlling the pro-inflammatory response of microglia. We also uncover that microglial Atg7-deficiency was associated with reduced microglia-mediated neurotoxicity, and thus a loss of biological function associated with the pro-inflammatory microglial reactive state. Further, we show that Atg7-deficiency in microglia did not impact on their ability to respond to alternative stimulus, such as one driving them towards an anti-inflammatory/tumor supportive phenotype. The identification of distinct regulators, such as Atg7, controlling specific microglial transcriptional programs could lead to developing novel therapeutic strategies aiming to manipulate selected microglial phenotypes, instead of the whole microglial population with is associated with several pitfalls.
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Affiliation(s)
- Lara Friess
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mathilde Cheray
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lily Keane
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kathleen Grabert
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Bertrand Joseph
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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33
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Sharma V, Fernando V, Letson J, Walia Y, Zheng X, Fackelman D, Furuta S. S-Nitrosylation in Tumor Microenvironment. Int J Mol Sci 2021; 22:ijms22094600. [PMID: 33925645 PMCID: PMC8124305 DOI: 10.3390/ijms22094600] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 02/07/2023] Open
Abstract
S-nitrosylation is a selective and reversible post-translational modification of protein thiols by nitric oxide (NO), which is a bioactive signaling molecule, to exert a variety of effects. These effects include the modulation of protein conformation, activity, stability, and protein-protein interactions. S-nitrosylation plays a central role in propagating NO signals within a cell, tissue, and tissue microenvironment, as the nitrosyl moiety can rapidly be transferred from one protein to another upon contact. This modification has also been reported to confer either tumor-suppressing or tumor-promoting effects and is portrayed as a process involved in every stage of cancer progression. In particular, S-nitrosylation has recently been found as an essential regulator of the tumor microenvironment (TME), the environment around a tumor governing the disease pathogenesis. This review aims to outline the effects of S-nitrosylation on different resident cells in the TME and the diverse outcomes in a context-dependent manner. Furthermore, we will discuss the therapeutic potentials of modulating S-nitrosylation levels in tumors.
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Wang Z, Cheng L, Shang Z, Li Z, Zhao Y, Jin W, Li Y, Su F, Mao X, Chen C, Zhang J. Network Pharmacology for Analyzing the Key Targets and Potential Mechanism of Wogonin in Gliomas. Front Pharmacol 2021; 12:646187. [PMID: 33897434 PMCID: PMC8058408 DOI: 10.3389/fphar.2021.646187] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/24/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: To analyze the key targets and potential mechanisms underlying the volatile components of Scutellaria baicalensis Georgi acting on gliomas through network pharmacology combined with biological experiments. Methods: We have extracted the volatile components of Scutellaria baicalensis by gas chromatography-mass spectrometry (GC-MS) and determined the active components related to the onset and development of gliomas by combining the results with the data from the Traditional Chinese Medicine Systems Pharmacology database. We screened the same targets for the extracted active components and gliomas through network pharmacology and then constructed a protein-protein interaction network. Using a Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis, we analyzed the protein effects and regulatory pathways of the common targets. Lastly, we employed ELISA and Western blot in verifying the key targets in the regulatory pathway. Results: We ultimately determined that the active component in S. baicalensis Georgi related to the onset and development of gliomas was Wogonin. The results of the network pharmacology revealed 85 targets for glioma and Wogonin. We used gene ontology to analyze these target genes and found that they involved 30 functions, such as phosphatidylinositol phosphokinase activation, while the KEGG analysis showed that there were 10 regulatory pathways involved. Through the following analysis, we found that most of the key target genes are distributed in the PI3K-Akt and interleukin 17 signaling pathways. We then cultured U251 glioma cells for the experiments. Compared with the control group, no significant change was noted in the caspase-3 expression; however, cleaved caspase-3 expression increased significantly and was dose-dependent on Wogonin. The expression of Bad and Bcl-2 with 25 μM of Wogonin has remained unchanged, but when the Wogonin dose was increased to 100 μM, the expression of Bad and Bcl-2 was noted to change significantly (Bad was significantly upregulated, while Bcl-2 was significantly downregulated) and was dose-dependent on Wogonin. The ELISA results showed that, compared with the control group, the secretion of tumor necrosis factor alpha, IL-1β, and IL-6 decreased as the Wogonin concentration increased. Tumor necrosis factor alpha downregulation had no significant dose-dependent effect on Wogonin, the inhibitory effect of 25 μM of Wogonin on IL-6 was not significant, and IL-1β downregulation had a significant dose-dependent effect on Wogonin. Conclusion: Wogonin might promote the apoptosis of glioma cells by upregulating proapoptotic factors, downregulating antiapoptotic factors, and inhibiting the inflammatory response, thereby inhibiting glioma progression.
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Affiliation(s)
- Zaizhong Wang
- Medical Engineering Technology and Data Mining Institute, Zhengzhou University, Zhengzhou, China.,Department of Neurosurgery, Zhumadian Central Hospital, Zhumadian, China
| | - Lulu Cheng
- Digital Medical Laboratory, Zhumadian Central Hospital, Zhumadian, China
| | - Zhigang Shang
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, China
| | - Zhihui Li
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, China
| | - Yuping Zhao
- Technology Department, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wenwen Jin
- Medical Engineering Technology and Data Mining Institute, Zhengzhou University, Zhengzhou, China
| | - Yingyue Li
- Medical Engineering Technology and Data Mining Institute, Zhengzhou University, Zhengzhou, China
| | - Fangchu Su
- Medical Engineering Technology and Data Mining Institute, Zhengzhou University, Zhengzhou, China
| | - Xiaobo Mao
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, China
| | - Chuanliang Chen
- Clinical Bioinformatics Experimental Center, Henan Provincial People's Hospital, Zhengzhou, China
| | - Jianhua Zhang
- Medical Engineering Technology and Data Mining Institute, Zhengzhou University, Zhengzhou, China
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Li X, Shi L, Li Y, Li Q, Duan X, Wang Y, Li Q. The enhanced treatment efficacy of invasive brain glioma by dual-targeted artemether plus paclitaxel micelles. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 48:983-996. [PMID: 32524852 DOI: 10.1080/21691401.2020.1773489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
High grade-gliomas are highly invasive and prone to metastasis, leading to poor survival and prognosis. Currently, we urgently need a new treatment strategy to effectively inhibit glioma. In this study, artemether and paclitaxel were used as two agents for tumour suppression. Two functional materials were synthesised and modified on the surface of the micelle as targeting molecules. The addition of two functional materials confers the ability of the micelles to effectively cross the blood-brain barrier (BBB) and then target the glioma cells. Thus, this dual-targeted delivery system allows the drug to play a better role in inhibiting tumour invasion and vasculogenic mimicry (VM) channels. In this paper, the anticancer effects of dual-targeted artemether plus paclitaxel micelles on glioma U87 cells were studied in three aspects: (I) In vitro and in vivo targeting assessment, including the role of penetrating BBB and targeting glioma; (II) In vitro regulation of invasion-associated proteins; (III) Inhibition of VM channels formation and invasion in vitro; (IV) The study of pharmacodynamics in tumour-bearing mice. These results suggest that dual-targeted artemether plus paclitaxel micelle may provide a new strategy to treat glioma via inhibiting invasive and VM channels.
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Affiliation(s)
- Xiuying Li
- Research Center for Engineering (Technology) of Traditional Chinese Medicine Microemulsions and New Biological Preparations, Shanxi University of Chinese Medicine, Jinzhong, China.,Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Luanxia Shi
- Research Center for Engineering (Technology) of Traditional Chinese Medicine Microemulsions and New Biological Preparations, Shanxi University of Chinese Medicine, Jinzhong, China.,Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Yandong Li
- Department of Pathology, The First Affilated Hospital of Xi'an Medical University, Xi'an, China
| | - Qinqing Li
- Research Center for Engineering (Technology) of Traditional Chinese Medicine Microemulsions and New Biological Preparations, Shanxi University of Chinese Medicine, Jinzhong, China.,Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Xiujun Duan
- Research Center for Engineering (Technology) of Traditional Chinese Medicine Microemulsions and New Biological Preparations, Shanxi University of Chinese Medicine, Jinzhong, China.,Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Yingli Wang
- Research Center for Engineering (Technology) of Traditional Chinese Medicine Microemulsions and New Biological Preparations, Shanxi University of Chinese Medicine, Jinzhong, China
| | - Qingshan Li
- Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing on the Chronic Inflammation, Shanxi University of Chinese Medicine, Jinzhong, China
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Pan Y, Zhao S, Chen F. The potential value of dequalinium chloride in the treatment of cancer: Focus on malignant glioma. Clin Exp Pharmacol Physiol 2021; 48:445-454. [PMID: 33496065 DOI: 10.1111/1440-1681.13466] [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: 11/06/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022]
Abstract
Dequalinium chloride has been known as one kind of antibiotic that displays a broad antimicrobial spectrum and has been clinically proven to be very safe. In recent years, studies have shown that dequalinium chloride can inhibit the growth of malignant tumours, and reports were mainly used for solid tumours. Glioblastoma is the most common malignant neuroepithelial tumour of the central nervous system in adults, and the prognosis of glioblastoma is poor as it has a high resistance to apoptosis. This review summarizes the current understanding of dequalinium chloride-induced cancer cell apoptosis and its potential role in glioblastoma resistance and progression. Particularly, we focus on dequalinium chloride as it exerts a wide range of anti-cancer activity through its ability to target and accumulate in the mitochondria, and it effectively inhibits the growth of glioblastoma cells in vitro and vivo. Dequalinium chloride is an inhibitor of XIAP and can also act as a mitochondrial targeting agent, which gives it an interesting perspective regarding recent advances in the treatment of malignant glioma.
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Affiliation(s)
- Yuehai Pan
- Department of Hand and foot surgery, The affiliated hospital of QingDao university, ShangDong, China
| | - Shuai Zhao
- Department of Anesthesiology, Bonn University, Bonn, Germany
| | - Fan Chen
- Department of Neurosurgery, The affiliated hospital of QingDao university, ShangDong, China
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37
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Keane L, Cheray M, Saidi D, Kirby C, Friess L, Gonzalez-Rodriguez P, Gerdes ME, Grabert K, McColl BW, Joseph B. Inhibition of microglial EZH2 leads to anti-tumoral effects in pediatric diffuse midline gliomas. Neurooncol Adv 2021; 3:vdab096. [PMID: 34485907 PMCID: PMC8409254 DOI: 10.1093/noajnl/vdab096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Diffuse intrinsic pontine gliomas (DIPG), within diffuse midline gliomas are aggressive pediatric brain tumors characterized by histone H3-K27M mutation. Small-molecule inhibitors for the EZH2-H3K27 histone methyltransferase have shown promise in preclinical animal models of DIPG, despite having little effect on DIPG cells in vitro. Therefore, we hypothesized that the effect of EZH2 inhibition could be mediated through targeting of this histone modifying enzyme in tumor-associated microglia. METHODS Primary DIPG tissues, and cocultures between microglia and patient-derived DIPG or -pediatric high-grade glioma (pHGG) cell lines, were used to establish the H3-K27M status of each cell type. Antisense RNA strategies were used to target EZH2 gene expression in both microglia and glioma cells. Microglia anti-tumoral properties were assessed by gene expression profile, tumor cell invasion capacity, microglial phagocytic activity, and associated tumor cell death. RESULTS In primary DIPG tissues, microglia do not carry the H3-K27M mutation, otherwise characteristic of the cancer cells. Activation of a microglial tumor-supportive phenotype by pHGG, independently of their H3-K27M status, is associated with a transient H3K27me3 downregulation. Repression of EZH2 in DIPG cells has no impact on tumor cell survival or their ability to activate microglia. However, repression of EZH2 in microglia induces an anti-tumor phenotype resulting in decreased cancer cell invasion capability, increased microglial phagocytosis, and tumor-related cell death. CONCLUSIONS These results indicate that microglia, beyond the tumor cells, contribute to the observed response of DIPG to EZH2 inhibition. Results highlight the potential importance of microglia as a new therapeutic avenue in DIPG.
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Affiliation(s)
- Lily Keane
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mathilde Cheray
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Dalel Saidi
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Caoimhe Kirby
- UK Dementia Research Institute, Center for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Lara Friess
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Kathleen Grabert
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Barry W McColl
- UK Dementia Research Institute, Center for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Bertrand Joseph
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Atypical Cadherin FAT3 Is a Novel Mediator for Morphological Changes of Microglia. eNeuro 2020; 7:ENEURO.0056-20.2020. [PMID: 32868309 PMCID: PMC7768282 DOI: 10.1523/eneuro.0056-20.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 12/17/2022] Open
Abstract
Microglia are resident macrophages that are critical for brain development and homeostasis. Microglial morphology is dynamically changed during postnatal stages, leading to regulating synaptogenesis and synapse pruning. Moreover, it has been well known that the shape of microglia is also altered in response to the detritus of the apoptotic cells and pathogens such as bacteria and viruses. Although the morphologic changes are crucial for acquiring microglial functions, the exact mechanism which controls their morphology is not fully understood. Here, we report that the FAT atypical cadherin family protein, FAT3, regulates the morphology of microglial cell line, BV2. We found that the shape of BV2 becomes elongated in a high-nutrient medium. Using microarray analysis, we identified that FAT3 expression is induced by culturing with a high-nutrient medium. In addition, we found that purinergic analog, hypoxanthine, promotes FAT3 expression in BV2 and mouse primary microglia. FAT3 expression induced by hypoxanthine extends the time of sustaining the elongated forms in BV2. These data suggest that the hypoxanthine-FAT3 axis is a novel pathway associated with microglial morphology. Our data provide a possibility that FAT3 may control microglial transitions involved in their morphologic changes during the postnatal stages in vivo.
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Enhancing antibody-dependent cellular phagocytosis by Re-education of tumor-associated macrophages with resiquimod-encapsulated liposomes. Biomaterials 2020; 268:120601. [PMID: 33338932 DOI: 10.1016/j.biomaterials.2020.120601] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 11/13/2020] [Accepted: 12/08/2020] [Indexed: 02/08/2023]
Abstract
Tumor-associated macrophages (TAMs) exist in nearly all tumors, and form a major part of the tumor microenvironment. TAMs are divided into two groups: tumor-suppressing M1 type and tumor-promoting M2 type. Most TAMs are educated by the tumor cells to become M2 type, which support tumor growth and make immunotherapy ineffective. Antibody-dependent cellular phagocytosis (ADCP) is an important mechanism for antibody cancer therapy, and this mechanism is dependent on TAMs. In this study, we found that the M1 type macrophages elicit a more efficient ADCP response than the M2 type, which was confirmed by three tumor cell lines, Raji, A431, and SKBR3, along with their corresponding therapeutic antibody Rituximab, anti-EGFR mouse monoclonal antibody (clone 528), and Trastuzumab, respectively. Resiquimod (R848), an immune system activating agent, has been shown to stimulate the M1 type macrophages, and re-educate the TAMs from M2 type to M1 type. By treating TAMs with R848, the ADCP response increased significantly in vitro and in in vivo mouse xenograft models. R848 encapsulated liposomes (R848-LPs) not only accumulated efficiently in the tumor tissues, but also distributed in the TAMs. Synergizing the R848-LPs with the anti-EGFR mouse monoclonal antibody (clone 528) significantly inhibited WiDr-tumor growth in vivo. Our study also revealed that the TAM-targeted delivery of R848 is able to re-educate the TAMs to M1 type, enhance the ADCP effect of the antibodies, and hence, enhance the anti-tumor effect of the therapeutic antibodies.
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Jaganjac M, Milkovic L, Sunjic SB, Zarkovic N. The NRF2, Thioredoxin, and Glutathione System in Tumorigenesis and Anticancer Therapies. Antioxidants (Basel) 2020; 9:E1151. [PMID: 33228209 PMCID: PMC7699519 DOI: 10.3390/antiox9111151] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer remains an elusive, highly complex disease and a global burden. Constant change by acquired mutations and metabolic reprogramming contribute to the high inter- and intratumor heterogeneity of malignant cells, their selective growth advantage, and their resistance to anticancer therapies. In the modern era of integrative biomedicine, realizing that a personalized approach could benefit therapy treatments and patients' prognosis, we should focus on cancer-driving advantageous modifications. Namely, reactive oxygen species (ROS), known to act as regulators of cellular metabolism and growth, exhibit both negative and positive activities, as do antioxidants with potential anticancer effects. Such complexity of oxidative homeostasis is sometimes overseen in the case of studies evaluating the effects of potential anticancer antioxidants. While cancer cells often produce more ROS due to their increased growth-favoring demands, numerous conventional anticancer therapies exploit this feature to ensure selective cancer cell death triggered by excessive ROS levels, also causing serious side effects. The activation of the cellular NRF2 (nuclear factor erythroid 2 like 2) pathway and induction of cytoprotective genes accompanies an increase in ROS levels. A plethora of specific targets, including those involved in thioredoxin (TRX) and glutathione (GSH) systems, are activated by NRF2. In this paper, we briefly review preclinical research findings on the interrelated roles of the NRF2 pathway and TRX and GSH systems, with focus given to clinical findings and their relevance in carcinogenesis and anticancer treatments.
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Affiliation(s)
| | | | | | - Neven Zarkovic
- Laboratory for Oxidative Stress, Division of Molecular Medicine, Rudjer Boskovic Institute, Bijenicka 54, 10000 Zagreb, Croatia; (M.J.); (L.M.); (S.B.S.)
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Radin DP, Tsirka SE. Interactions between Tumor Cells, Neurons, and Microglia in the Glioma Microenvironment. Int J Mol Sci 2020; 21:E8476. [PMID: 33187183 PMCID: PMC7698134 DOI: 10.3390/ijms21228476] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/12/2022] Open
Abstract
Despite significant strides made in understanding the pathophysiology of high-grade gliomas over the past two decades, most patients succumb to these neoplasias within two years of diagnosis. Furthermore, there are various co-morbidities associated with glioma and standard of care treatments. Emerging evidence suggests that aberrant glutamate secretion in the glioma microenvironment promotes tumor progression and contributes to the development of co-morbidities, such as cognitive defects, epilepsy, and widespread neurodegeneration. Recent data clearly illustrate that neurons directly synapse onto glioma cells and drive their proliferation and spread via glutamatergic action. Microglia are central nervous system-resident myeloid cells, modulate glioma growth, and possess the capacity to prune synapses and encourage synapse formation. However, current literature has yet to investigate the potential role of microglia in shaping synapse formation between neurons and glioma cells. Herein, we present the literature concerning glutamate's role in glioma progression, involving hyperexcitability and excitotoxic cell death of peritumoral neurons and stimulation of glioma proliferation and invasion. Furthermore, we discuss instances in which microglia are more likely to sculpt or encourage synapse formation during glioma treatment and propose studies to delineate the role of microglia in synapse formation between neurons and glioma cells. The sex-dependent oncogenic or oncolytic actions of microglia and myeloid cells, in general, are considered in addition to the functional differences between microglia and macrophages in tumor progression. We also put forth tractable methods to safely perturb aberrant glutamatergic action in the tumor microenvironment without significantly increasing the toxicities of the standard of care therapies for glioma therapy.
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Affiliation(s)
| | - Stella E. Tsirka
- Stony Brook Medical Scientist Training Program, Molecular and Cellular Pharmacology Graduate Program, Department of Pharmacological Sciences, Renaissance School of Medicine, Stony Brook University, Stony Brook, New York, NY 11794-8651, USA;
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Abstract
The innate immune system in the central nervous system (CNS) is mainly represented by specialized tissue-resident macrophages, called microglia. In the past years, various species-, host- and tissue-specific as well as environmental factors were recognized that essentially affect microglial properties and functions in the healthy and diseased brain. Host microbiota are mostly residing in the gut and contribute to microglial activation states, for example, via short-chain fatty acids (SCFAs) or aryl hydrocarbon receptor (AhR) ligands. Thereby, the gut microorganisms are deemed to influence numerous CNS diseases mediated by microglia. In this review, we summarize recent findings of the interaction between the host microbiota and the CNS in health and disease, where we specifically highlight the resident gut microbiota as a crucial environmental factor for microglial function as what we coin "the microbiota-microglia axis."
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Affiliation(s)
- Omar Mossad
- Institute of NeuropathologyFaculty of MedicineUniversity of FreiburgFreiburgGermany
- Faculty of BiologyUniversity of FreiburgFreiburgGermany
| | - Daniel Erny
- Institute of NeuropathologyFaculty of MedicineUniversity of FreiburgFreiburgGermany
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43
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Halder A, Yadav K, Aggarwal A, Singhal N, Sandhir R. Activation of TNFR1 and TLR4 following oxygen glucose deprivation promotes mitochondrial fission in C6 astroglial cells. Cell Signal 2020; 75:109714. [PMID: 32693013 DOI: 10.1016/j.cellsig.2020.109714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/30/2020] [Accepted: 07/12/2020] [Indexed: 12/14/2022]
Abstract
Astrocytes have emerged as active players in the innate immune response triggered by various types of insults. Recent literature suggests that mitochondria are key participants in innate immunity. The present study investigates the role of ischemia-induced innate immune response on p65/PGC-1α mediated mitochondrial dynamics in C6 astroglial cells. OGD conditions induced astroglial differentiation in C6 cells and increased the expression of hypoxia markers; HIF-1α, HO-1 and Cox4i2. OGD conditions resulted in induction of innate immune response in terms of expression of TNFR1 and TLR4 along with increase in IL-6 and TNF-α levels. OGD conditions resulted in decreased expression of I-κB with a concomitant increase in phos-p65 levels. The expression of PGC-1α, a key regulator of mitochondrial biogenesis, was also increased. Immunochemical staining suggested that phos-p65 and PGC-1α was co-localized. Studies on mitochondrial fusion (Mfn-1) and fission (DRP1) markers revealed shift toward fission. In addition, mitochondrial membrane potential decreased with increased DNA degradation and apoptosis confirming mitochondrial fission under OGD conditions. However, inhibition of phos-p65 by MG132 reduced the co-localization of phos-p65/ PGC-1α and significantly increased the Mfn-1 expression. The findings demonstrate the involvement of TNFR1 and TLR4 mediated immune response followed by interaction between phos-p65 and PGC-1α in promoting fission in C6 cells under hypoxic condition.
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Affiliation(s)
- Avishek Halder
- Department of Biochemistry, Basic Medical Science Block II, Panjab University, Chandigarh, India
| | - Kamalendra Yadav
- National Agri-Food Biotechnology Institute, Sector 81, Mohali, Punjab, India
| | - Aanchal Aggarwal
- National Agri-Food Biotechnology Institute, Sector 81, Mohali, Punjab, India
| | - Nitin Singhal
- National Agri-Food Biotechnology Institute, Sector 81, Mohali, Punjab, India
| | - Rajat Sandhir
- Department of Biochemistry, Basic Medical Science Block II, Panjab University, Chandigarh, India.
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44
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Branco V, Pimentel J, Brito MA, Carvalho C. Thioredoxin, Glutathione and Related Molecules in Tumors of the Nervous System. Curr Med Chem 2020; 27:1878-1900. [PMID: 30706774 DOI: 10.2174/0929867326666190201113004] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 09/14/2018] [Accepted: 11/28/2018] [Indexed: 12/25/2022]
Abstract
BACKGROUND Central Nervous System (CNS) tumors have a poor survival prognosis due to their invasive and heterogeneous nature, in addition to the resistance to multiple treatments. OBJECTIVE In this paper, the main aspects of brain tumor biology and pathogenesis are reviewed both for primary tumors of the brain, (i.e., gliomas) and for metastasis from other malignant tumors, namely lung cancer, breast cancer and malignant melanoma which account for a high percentage of overall malignant brain tumors. We review the role of antioxidant systems, namely the thioredoxin and glutathione systems, in the genesis and/or progression of brain tumors. METHODS Although overexpression of Thioredoxin Reductase (TrxR) and Thioredoxin (Trx) is often linked to increased malignancy rate of brain tumors, and higher expression of Glutathione (GSH) and Glutathione S-Transferases (GST) are associated to resistance to therapy, several knowledge gaps still exist regarding for example, the role of Peroxiredoxins (Prx), and Glutaredoxins (Grx). CONCLUSION Due to their central role in redox homeostasis and ROS scavenging, redox systems are potential targets for new antitumorals and examples of innovative therapeutics aiming at improving success rates in brain tumor treatment are discussed.
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Affiliation(s)
- Vasco Branco
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - José Pimentel
- Laboratory of Neuropathology, Department of Neurology, Hospital de Santa Maria (CHLN), Av. Prof. Egas Moniz, 1649-036 Lisboa, Portugal.,Faculty of Medicine, Lisbon University, Av. Prof. Egas Moniz, 1649-036 Lisboa, Portugal
| | - Maria Alexandra Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Cristina Carvalho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
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45
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Nakamura T, Lipton SA. Nitric Oxide-Dependent Protein Post-Translational Modifications Impair Mitochondrial Function and Metabolism to Contribute to Neurodegenerative Diseases. Antioxid Redox Signal 2020; 32:817-833. [PMID: 31657228 PMCID: PMC7074890 DOI: 10.1089/ars.2019.7916] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Significance: Most brains affected by neurodegenerative diseases manifest mitochondrial dysfunction as well as elevated production of reactive oxygen species and reactive nitrogen species (RNS), contributing to synapse loss and neuronal injury. Recent Advances: Excessive production of RNS triggers nitric oxide (NO)-mediated post-translational modifications of proteins, such as S-nitrosylation of cysteine residues and nitration of tyrosine residues. Proteins thus affected impair mitochondrial metabolism, mitochondrial dynamics, and mitophagy in the nervous system. Critical Issues: Identification and better characterization of underlying molecular mechanisms for NO-mediated mitochondrial dysfunction will provide important insights into the pathogenesis of neurodegenerative disorders. In this review, we highlight recent discoveries concerning S-nitrosylation of the tricarboxylic acid cycle enzymes, mitochondrial fission GTPase dynamin-related protein 1, and mitophagy-related proteins Parkin and phosphatase and tensin homolog-induced putative kinase protein 1. We delineate signaling cascades affected by pathologically S-nitrosylated proteins that diminish mitochondrial function in neurodegenerative diseases. Future Directions: Further elucidation of the pathological events resulting from aberrant S-nitrosothiol or nitrotyrosine formation may lead to new therapeutic approaches to ameliorate neurodegenerative disorders.
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Affiliation(s)
- Tomohiro Nakamura
- Departments of Molecular Medicine and Neuroscience, Neuroscience Translational Center, The Scripps Research Institute, La Jolla, California
- Address correspondence to: Dr. Tomohiro Nakamura, Departments of Molecular Medicine and Neuroscience, Neuroscience Translational Center, The Scripps Research Institute, La Jolla, CA 92037
| | - Stuart A. Lipton
- Departments of Molecular Medicine and Neuroscience, Neuroscience Translational Center, The Scripps Research Institute, La Jolla, California
- Department of Neurosciences, University of California San Diego, School of Medicine, La Jolla, California
- Dr. Stuart A. Lipton, Departments of Molecular Medicine and Neuroscience, Neuroscience Translational Center, The Scripps Research Institute, La Jolla, CA 92037
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46
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Benhar M. Oxidants, Antioxidants and Thiol Redox Switches in the Control of Regulated Cell Death Pathways. Antioxidants (Basel) 2020; 9:antiox9040309. [PMID: 32290499 PMCID: PMC7222211 DOI: 10.3390/antiox9040309] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 12/16/2022] Open
Abstract
It is well appreciated that biological reactive oxygen and nitrogen species such as hydrogen peroxide, superoxide and nitric oxide, as well as endogenous antioxidant systems, are important modulators of cell survival and death in diverse organisms and cell types. In addition, oxidative stress, nitrosative stress and dysregulated cell death are implicated in a wide variety of pathological conditions, including cancer, cardiovascular and neurological diseases. Therefore, much effort is devoted to elucidate the molecular mechanisms linking oxidant/antioxidant systems and cell death pathways. This review is focused on thiol redox modifications as a major mechanism by which oxidants and antioxidants influence specific regulated cell death pathways in mammalian cells. Growing evidence indicates that redox modifications of cysteine residues in proteins are involved in the regulation of multiple cell death modalities, including apoptosis, necroptosis and pyroptosis. In addition, recent research suggests that thiol redox switches play a role in the crosstalk between apoptotic and necrotic forms of regulated cell death. Thus, thiol-based redox circuits provide an additional layer of control that determines when and how cells die.
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Affiliation(s)
- Moran Benhar
- Department of Biochemistry, Rappaport Institute for Research in the Medical Sciences, Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
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47
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Qi M, Sun LA, Jiang XC, Han YL, Wang L, Niu WH, Fei MX, Zhaba WD, Zheng LR, Zhou ML. FOXO4 expression associates with glioblastoma development and FOXO4 expression inhibits cell malignant phenotypes in vitro and in vivo. Life Sci 2020; 247:117436. [PMID: 32070707 DOI: 10.1016/j.lfs.2020.117436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 02/13/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND AIM Forkhead box protein O4 (FOXO4) is a transcription factor, and aberrant FOXO4 expression is associated with development of various human cancers. This study explored the role of FOXO4 in glioma in vitro and in vivo. METHODS FOXO4 expression was first assessed in normal brain tissues, low-grade glioma, glioblastoma multiforme (GBM), normal human astrocytes (HA), and GBM cell lines, while manipulation of FOXO4 expression in glioma cell lines was assessed using qRT-PCR, Western blot, and cell viability CCK-8, Transwell, and a nude mouse subcutaneous xenograft assays. KEY FINDINGS The data showed downregulated FOXO4 expression in GBM tissues and cell lines. FOXO4 overexpression induced by transfection with FOXO4 cDNA significantly inhibited GBM cell proliferation, migration, and invasion, but increased tumor cells to undergo apoptosis in vitro, while suppressed growth of GBM cell subcutaneous xenografts in nude mice. In conclusion, FOXO4 possesses an anti-cancer glioma activity, which could be a novel target for future control of GBM.
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Affiliation(s)
- Min Qi
- Anatomy Experimental Center, Wannan Medical College, Wuhu 241002, Anhui, China; Graduate School of Wannan Medical College, Wuhu 241002, Anhui, China; Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China
| | - Le-An Sun
- Graduate School of Wannan Medical College, Wuhu 241002, Anhui, China; Department of Neurosurgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, Anhui, China
| | - Xiao-Chun Jiang
- Department of Neurosurgery, Yijishan Hospital, Wannan Medical College, Wuhu 241001, Anhui, China
| | - Yan-Ling Han
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China
| | - Lin Wang
- Department of Pathophysiology, Basic Medical College, Wannan Medical College, Wuhu 241002, Anhui, China
| | - Wen-Hao Niu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China
| | - Mao-Xing Fei
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China
| | - Wang-Dui Zhaba
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China
| | - Lan-Rong Zheng
- Department of Pathology, Basic Medical College, Wannan Medical College, Wuhu 241002, Anhui, China.
| | - Meng-Liang Zhou
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, China.
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Curcumin Affects HSP60 Folding Activity and Levels in Neuroblastoma Cells. Int J Mol Sci 2020; 21:ijms21020661. [PMID: 31963896 PMCID: PMC7013437 DOI: 10.3390/ijms21020661] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 02/06/2023] Open
Abstract
The fundamental challenge in fighting cancer is the development of protective agents able to interfere with the classical pathways of malignant transformation, such as extracellular matrix remodeling, epithelial–mesenchymal transition and, alteration of protein homeostasis. In the tumors of the brain, proteotoxic stress represents one of the main triggering agents for cell transformation. Curcumin is a natural compound with anti-inflammatory and anti-cancer properties with promising potential for the development of therapeutic drugs for the treatment of cancer as well as neurodegenerative diseases. Among the mediators of cancer development, HSP60 is a key factor for the maintenance of protein homeostasis and cell survival. High HSP60 levels were correlated, in particular, with cancer development and progression, and for this reason, we investigated the ability of curcumin to affect HSP60 expression, localization, and post-translational modifications using a neuroblastoma cell line. We have also looked at the ability of curcumin to interfere with the HSP60/HSP10 folding machinery. The cells were treated with 6, 12.5, and 25 µM of curcumin for 24 h, and the flow cytometry analysis showed that the compound induced apoptosis in a dose-dependent manner with a higher percentage of apoptotic cells at 25 µM. This dose of curcumin-induced a decrease in HSP60 protein levels and an upregulation of HSP60 mRNA expression. Moreover, 25 µM of curcumin reduced HSP60 ubiquitination and nitration, and the chaperonin levels were higher in the culture media compared with the untreated cells. Furthermore, curcumin at the same dose was able to favor HSP60 folding activity. The reduction of HSP60 levels, together with the increase in its folding activity and the secretion in the media led to the supposition that curcumin might interfere with cancer progression with a protective mechanism involving the chaperonin.
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Mazurek M, Litak J, Kamieniak P, Kulesza B, Jonak K, Baj J, Grochowski C. Metformin as Potential Therapy for High-Grade Glioma. Cancers (Basel) 2020; 12:cancers12010210. [PMID: 31952173 PMCID: PMC7016983 DOI: 10.3390/cancers12010210] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 01/09/2020] [Accepted: 01/13/2020] [Indexed: 12/15/2022] Open
Abstract
Metformin (MET), 1,1-dimethylbiguanide hydrochloride, is a biguanide drug used as the first-line medication in the treatment of type 2 diabetes. The recent years have brought many observations showing metformin in its new role. The drug, commonly used in the therapy of diabetes, may also find application in the therapy of a vast variety of tumors. Its effectiveness has been demonstrated in colon, breast, prostate, pancreatic cancer, leukemia, melanoma, lung and endometrial carcinoma, as well as in gliomas. This is especially important in light of the poor options offered to patients in the case of high-grade gliomas, which include glioblastoma (GBM). A thorough understanding of the mechanism of action of metformin can make it possible to discover new drugs that could be used in neoplasm therapy.
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Affiliation(s)
- Marek Mazurek
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Jakub Litak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
- Department of Immunology, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland
| | - Piotr Kamieniak
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Bartłomiej Kulesza
- Department of Neurosurgery and Pediatric Neurosurgery, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland; (M.M.); (J.L.); (P.K.); (B.K.)
| | - Katarzyna Jonak
- Department of Foregin Languages, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Jacek Baj
- Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Cezary Grochowski
- Department of Anatomy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
- Correspondence:
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50
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Cheray M, Stratoulias V, Joseph B, Grabert K. The Rules of Engagement: Do Microglia Seal the Fate in the Inverse Relation of Glioma and Alzheimer's Disease? Front Cell Neurosci 2019; 13:522. [PMID: 31824268 PMCID: PMC6879422 DOI: 10.3389/fncel.2019.00522] [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: 10/02/2019] [Accepted: 11/07/2019] [Indexed: 12/30/2022] Open
Abstract
Microglia, the immune cells of the brain, play a major role in the maintenance of brain homeostasis and constantly screen the brain environment to detect any infection or damage. Once activated by a stimulus, microglial cells initiate an immune response followed by the resolution of brain inflammation. A failure or deviation in the housekeeping function of these guardian cells can lead to multiple diseases, including brain cancer and neurodegenerative diseases such as Alzheimer's disease (AD). A small number of studies have investigated the causal relation of both diseases, thereby revealing an inverse relationship where cancer patients have a reduced risk to develop AD and vice versa. In this review, we aim to shed light on the role of microglia in the fate to develop specifically glioma as one type of cancer or AD. We will examine the common and/or opposing genetic predisposition as well as associated pathways of these diseases to unravel a possible involvement of microglia in the occurrence of either disease. Lastly, a set of guidelines will be proposed for future research and diagnostics to clarify and improve the knowledge on the role of microglia in the decision toward one pathology or another.
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Affiliation(s)
- Mathilde Cheray
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Vassilis Stratoulias
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Neuroscience Center, Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Bertrand Joseph
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kathleen Grabert
- Toxicology Unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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