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  1. Article ; Online: The ATG8 Family Proteins GABARAP and GABARAPL1 Target Antigen to Dendritic Cells to Prime CD4

    Fonderflick, Leïla / Baudu, Timothée / Adotévi, Olivier / Guittaut, Michaël / Adami, Pascale / Delage-Mourroux, Régis

    Cells

    2022  Volume 11, Issue 18

    Abstract: Vaccine therapy is a promising method of research to promote T cell immune response and to develop novel antitumor immunotherapy protocols. Accumulating evidence has shown that autophagy is involved in antigen processing and presentation to T cells. In ... ...

    Abstract Vaccine therapy is a promising method of research to promote T cell immune response and to develop novel antitumor immunotherapy protocols. Accumulating evidence has shown that autophagy is involved in antigen processing and presentation to T cells. In this work, we investigated the potential role of GABARAP and GABARAPL1, two members of the autophagic ATG8 family proteins, as surrogate tumor antigen delivery vectors to prime antitumor T cells. We showed that bone marrow-derived dendritic cells, expressing the antigen OVALBUMIN (OVA) fused with GABARAP or GABARAPL1, were able to prime OVA-specific CD4
    MeSH term(s) Antigens, Neoplasm/metabolism ; Autophagy-Related Protein 8 Family/metabolism ; CD4-Positive T-Lymphocytes ; CD8-Positive T-Lymphocytes ; Dendritic Cells ; Ovalbumin ; Peptides/metabolism ; Proteasome Endopeptidase Complex/metabolism
    Chemical Substances Antigens, Neoplasm ; Autophagy-Related Protein 8 Family ; Peptides ; Ovalbumin (9006-59-1) ; Proteasome Endopeptidase Complex (EC 3.4.25.1)
    Language English
    Publishing date 2022-09-06
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells11182782
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Specific or not specific recruitment of DNMTs for DNA methylation, an epigenetic dilemma.

    Hervouet, Eric / Peixoto, Paul / Delage-Mourroux, Régis / Boyer-Guittaut, Michaël / Cartron, Pierre-François

    Clinical epigenetics

    2018  Volume 10, Page(s) 17

    Abstract: Our current view of DNA methylation processes is strongly moving: First, even if it was generally admitted that DNMT3A and DNMT3B are associated with de novo methylation and DNMT1 is associated with inheritance DNA methylation, these distinctions are now ...

    Abstract Our current view of DNA methylation processes is strongly moving: First, even if it was generally admitted that DNMT3A and DNMT3B are associated with de novo methylation and DNMT1 is associated with inheritance DNA methylation, these distinctions are now not so clear. Secondly, since one decade, many partners of DNMTs have been involved in both the regulation of DNA methylation activity and DNMT recruitment on DNA. The high diversity of interactions and the combination of these interactions let us to subclass the different DNMT-including complexes. For example, the DNMT3L/DNMT3A complex is mainly related to de novo DNA methylation in embryonic states, whereas the DNMT1/PCNA/UHRF1 complex is required for maintaining global DNA methylation following DNA replication. On the opposite to these unspecific DNA methylation machineries (no preferential DNA sequence), some recently identified DNMT-including complexes are recruited on specific DNA sequences. The coexistence of both types of DNA methylation (un/specific) suggests a close cooperation and an orchestration between these systems to maintain genome and epigenome integrities. Deregulation of these systems can lead to pathologic disorders.
    MeSH term(s) Animals ; DNA (Cytosine-5-)-Methyltransferases/metabolism ; DNA Methylation ; DNA Replication ; Embryonic Development ; Epigenesis, Genetic ; Humans
    Chemical Substances DNA (Cytosine-5-)-Methyltransferases (EC 2.1.1.37)
    Language English
    Publishing date 2018-02-09
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ISSN 1868-7083
    ISSN (online) 1868-7083
    DOI 10.1186/s13148-018-0450-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: EZH2 and KDM6B Expressions Are Associated with Specific Epigenetic Signatures during EMT in Non Small Cell Lung Carcinomas.

    Lachat, Camille / Bruyère, Diane / Etcheverry, Amandine / Aubry, Marc / Mosser, Jean / Warda, Walid / Herfs, Michaël / Hendrick, Elodie / Ferrand, Christophe / Borg, Christophe / Delage-Mourroux, Régis / Feugeas, Jean-Paul / Guittaut, Michaël / Hervouet, Eric / Peixoto, Paul

    Cancers

    2020  Volume 12, Issue 12

    Abstract: The role of Epigenetics in Epithelial Mesenchymal Transition (EMT) has recently emerged. Two epigenetic enzymes with paradoxical roles have previously been associated to EMT, EZH2 (Enhancer of Zeste 2 Polycomb Repressive Complex 2 (PRC2) Subunit), a ... ...

    Abstract The role of Epigenetics in Epithelial Mesenchymal Transition (EMT) has recently emerged. Two epigenetic enzymes with paradoxical roles have previously been associated to EMT, EZH2 (Enhancer of Zeste 2 Polycomb Repressive Complex 2 (PRC2) Subunit), a lysine methyltranserase able to add the H3K27me3 mark, and the histone demethylase KDM6B (Lysine Demethylase 6B), which can remove the H3K27me3 mark. Nevertheless, it still remains unclear how these enzymes, with apparent opposite activities, could both promote EMT. In this study, we evaluated the function of these two enzymes using an EMT-inducible model, the lung cancer A549 cell line. ChIP-seq coupled with transcriptomic analysis showed that EZH2 and KDM6B were able to target and modulate the expression of different genes during EMT. Based on this analysis, we described INHBB, WTN5B, and ADAMTS6 as new EMT markers regulated by epigenetic modifications and directly implicated in EMT induction.
    Language English
    Publishing date 2020-12-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers12123649
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Epigenetic regulation of estrogen signaling in breast cancer.

    Hervouet, Eric / Cartron, Pierre-François / Jouvenot, Michèle / Delage-Mourroux, Régis

    Epigenetics

    2013  Volume 8, Issue 3, Page(s) 237–245

    Abstract: Estrogen signaling is mediated by ERα and ERβ in hormone dependent, breast cancer (BC). Over the last decade the implication of epigenetic pathways in BC tumorigenesis has emerged: cancer-related epigenetic modifications are implicated in both gene ... ...

    Abstract Estrogen signaling is mediated by ERα and ERβ in hormone dependent, breast cancer (BC). Over the last decade the implication of epigenetic pathways in BC tumorigenesis has emerged: cancer-related epigenetic modifications are implicated in both gene expression regulation, and chromosomal instability. In this review, the epigenetic-mediated estrogen signaling, controlling both ER level and ER-targeted gene expression in BC, are discussed: (1) ER silencing is frequently observed in BC and is often associated with epigenetic regulations while chemical epigenetic modulators restore ER expression and increase response to treatment;(2) ER-targeted gene expression is tightly regulated by co-recruitment of ER and both coactivators/corepressors including HATs, HDACs, HMTs, Dnmts and Polycomb proteins.
    MeSH term(s) Animals ; Breast Neoplasms/genetics ; Breast Neoplasms/metabolism ; Epigenesis, Genetic ; Estrogens/metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Receptors, Estrogen/genetics ; Receptors, Estrogen/metabolism ; Signal Transduction ; Transcription Factors/genetics ; Transcription Factors/metabolism
    Chemical Substances Estrogens ; Receptors, Estrogen ; Transcription Factors
    Language English
    Publishing date 2013-01-30
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ISSN 1559-2308
    ISSN (online) 1559-2308
    DOI 10.4161/epi.23790
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Interplay between ROS and autophagy in cancer cells, from tumor initiation to cancer therapy.

    Poillet-Perez, Laura / Despouy, Gilles / Delage-Mourroux, Régis / Boyer-Guittaut, Michaël

    Redox biology

    2015  Volume 4, Page(s) 184–192

    Abstract: Cancer formation is a complex and highly regulated multi-step process which is highly dependent of its environment, from the tissue to the patient. This complexity implies the development of specific treatments adapted to each type of tumor. The initial ... ...

    Abstract Cancer formation is a complex and highly regulated multi-step process which is highly dependent of its environment, from the tissue to the patient. This complexity implies the development of specific treatments adapted to each type of tumor. The initial step of cancer formation requires the transformation of a healthy cell to a cancer cell, a process regulated by multiple intracellular and extracellular stimuli. The further steps, from the anarchic proliferation of cancer cells to form a primary tumor to the migration of cancer cells to distant organs to form metastasis, are also highly dependent of the tumor environment but of intracellular molecules and pathways as well. In this review, we will focus on the regulatory role of reactive oxygen species (ROS) and autophagy levels during the course of cancer development, from cellular transformation to the formation of metastasis. These data will allow us to discuss the potential of this molecule or pathway as putative future therapeutic targets.
    MeSH term(s) AMP-Activated Protein Kinases/genetics ; AMP-Activated Protein Kinases/metabolism ; Antineoplastic Agents/therapeutic use ; Apoptosis Regulatory Proteins/genetics ; Apoptosis Regulatory Proteins/metabolism ; Autophagy/genetics ; Autophagy-Related Protein-1 Homolog ; Autophagy-Related Proteins ; Beclin-1 ; Cell Transformation, Neoplastic/genetics ; Cell Transformation, Neoplastic/metabolism ; Cell Transformation, Neoplastic/pathology ; Cysteine Endopeptidases/genetics ; Cysteine Endopeptidases/metabolism ; Gene Expression Regulation, Neoplastic ; Humans ; Intracellular Signaling Peptides and Proteins/genetics ; Intracellular Signaling Peptides and Proteins/metabolism ; Kelch-Like ECH-Associated Protein 1 ; Lymphatic Metastasis ; Membrane Proteins/genetics ; Membrane Proteins/metabolism ; Mitochondria/metabolism ; Mitochondria/pathology ; Mitochondrial Degradation/genetics ; Neoplasms/drug therapy ; Neoplasms/genetics ; Neoplasms/metabolism ; Neoplasms/pathology ; Protein-Serine-Threonine Kinases/genetics ; Protein-Serine-Threonine Kinases/metabolism ; Reactive Oxygen Species/metabolism ; Signal Transduction ; Tumor Microenvironment
    Chemical Substances Antineoplastic Agents ; Apoptosis Regulatory Proteins ; Autophagy-Related Proteins ; BECN1 protein, human ; Beclin-1 ; Intracellular Signaling Peptides and Proteins ; KEAP1 protein, human ; Kelch-Like ECH-Associated Protein 1 ; Membrane Proteins ; Reactive Oxygen Species ; Autophagy-Related Protein-1 Homolog (EC 2.7.11.1) ; Protein-Serine-Threonine Kinases (EC 2.7.11.1) ; ULK1 protein, human (EC 2.7.11.1) ; AMP-Activated Protein Kinases (EC 2.7.11.31) ; ATG4A protein, human (EC 3.4.22.-) ; Cysteine Endopeptidases (EC 3.4.22.-)
    Language English
    Publishing date 2015
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ISSN 2213-2317
    ISSN (online) 2213-2317
    DOI 10.1016/j.redox.2014.12.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Use of epigenetic modulators as a powerful adjuvant for breast cancer therapies.

    Claude-Taupin, Aurore / Boyer-Guittaut, Michael / Delage-Mourroux, Régis / Hervouet, Eric

    Methods in molecular biology (Clifton, N.J.)

    2015  Volume 1238, Page(s) 487–509

    Abstract: Breast cancer (BC) is one of the five most frequent cancers in the world. Despite earlier diagnosis and development of specific treatments, mortality has only declined of about 30 % during the past two decades. Two of the main reasons are the emergence ... ...

    Abstract Breast cancer (BC) is one of the five most frequent cancers in the world. Despite earlier diagnosis and development of specific treatments, mortality has only declined of about 30 % during the past two decades. Two of the main reasons are the emergence of drug resistance and the absence of specific therapy for triple negative breast cancers (TNBC), which are characterized by a poor prognosis due to high proliferation rate. Therefore, the future goal of the fight against BC will be to find new therapeutic approaches to overcome drug resistances and cure TNBC. Recent research on gene expression profiles linked to the different types of BC cells have led to consider the use of epigenetic modulators to modulate the expression of genes deregulated in cancer. The preliminary encouraging results have demonstrated a positive effect of DNA Methyl Transferase (DNMT) and Histone DeAcetylase (HDAC) inhibitors on different types of BC, as well as drug-resistant cells, with low side effects. In this review, we will describe the different epigenetic modulators currently used or investigated in BC therapy research in vitro as well as preclinical and clinical trials, and promising compounds, which might be used in future BC therapies.
    MeSH term(s) Adjuvants, Pharmaceutic/pharmacology ; Adjuvants, Pharmaceutic/therapeutic use ; Breast Neoplasms/drug therapy ; Breast Neoplasms/genetics ; DNA (Cytosine-5-)-Methyltransferases/antagonists & inhibitors ; Drug Discovery ; Epigenesis, Genetic/drug effects ; Histone Deacetylase Inhibitors/pharmacology ; Histone Deacetylase Inhibitors/therapeutic use ; Humans
    Chemical Substances Adjuvants, Pharmaceutic ; Histone Deacetylase Inhibitors ; DNA (Cytosine-5-)-Methyltransferases (EC 2.1.1.37)
    Language English
    Publishing date 2015
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-4939-1804-1_25
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Proximity Ligation In situ Assay is a Powerful Tool to Monitor Specific ATG Protein Interactions following Autophagy Induction.

    Gauthier, Thierry / Claude-Taupin, Aurore / Delage-Mourroux, Régis / Boyer-Guittaut, Michaël / Hervouet, Eric

    PloS one

    2015  Volume 10, Issue 6, Page(s) e0128701

    Abstract: Macroautophagy is a highly regulated intracellular degradation process which has been extensively studied over the last decade. This pathway has been initially described as a non selective process inducing the degradation of parts of the cytoplasm as ... ...

    Abstract Macroautophagy is a highly regulated intracellular degradation process which has been extensively studied over the last decade. This pathway has been initially described as a non selective process inducing the degradation of parts of the cytoplasm as well as organelles at random. Nevertheless, over the last few years, new research highlighted the existence of a more selective autophagy pathway specifically recruiting some organelles or aggregates to the autophagosomes in order to induce their degradation. These selective autophagy pathways such as aggrephagy, mitophagy, pexophagy or xenophagy, involve the intervention of a cargo, the material to be degraded, cargo adapters, the molecules allowing the recruitment of the cargo to the autophagosome, and the proteins of the ATG8 family which link the cargo adapters to the autophagosome. One of the main questions which now remain is to develop new techniques and protocols able to discriminate between these different types of induced autophagy. In our work, we studied the possibility to use the P-LISA technique, which has been recently developed to study endogenous in vivo protein interactions, as a new technique to characterize the ATG proteins specifically involved in bulk or selective autophagy. In this manuscript, we indeed demonstrate that this technique allows the study of endogenous ATG protein interactions in cells following autophagy induction, but more interestingly that this technique might be used to characterize the ATG proteins involved in selective autophagy.
    MeSH term(s) Adaptor Proteins, Signal Transducing/genetics ; Adaptor Proteins, Signal Transducing/metabolism ; Adaptor Proteins, Signal Transducing/physiology ; Autophagy/physiology ; Autophagy-Related Protein 8 Family ; Fluorescent Antibody Technique ; Humans ; MCF-7 Cells ; Membrane Proteins/genetics ; Membrane Proteins/metabolism ; Membrane Proteins/physiology ; Microfilament Proteins/genetics ; Microfilament Proteins/metabolism ; Microfilament Proteins/physiology ; Microtubule-Associated Proteins/genetics ; Microtubule-Associated Proteins/metabolism ; Microtubule-Associated Proteins/physiology ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins/metabolism ; Proto-Oncogene Proteins/physiology ; Sequestosome-1 Protein ; Tumor Suppressor Proteins/genetics ; Tumor Suppressor Proteins/metabolism ; Tumor Suppressor Proteins/physiology
    Chemical Substances Adaptor Proteins, Signal Transducing ; Autophagy-Related Protein 8 Family ; BNIP3L protein, human ; GABARAP protein, human ; GABARAPL2 protein, human ; MAP1LC3B protein, human ; Membrane Proteins ; Microfilament Proteins ; Microtubule-Associated Proteins ; Proto-Oncogene Proteins ; SQSTM1 protein, human ; Sequestosome-1 Protein ; Tumor Suppressor Proteins
    Language English
    Publishing date 2015-06-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0128701
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Carbon nanotubes as gene carriers: Focus on internalization pathways related to functionalization and properties.

    Caoduro, Cécile / Hervouet, Eric / Girard-Thernier, Corine / Gharbi, Tijani / Boulahdour, Hatem / Delage-Mourroux, Régis / Pudlo, Marc

    Acta biomaterialia

    2017  Volume 49, Page(s) 36–44

    Abstract: Carbon nanotubes represent promising transporters for delivery of DNA and other biomolecules into living cells. Various methods of CNTs surface functionalization have been developed. These are essential to improve CNTs dispersibility and permit their ... ...

    Abstract Carbon nanotubes represent promising transporters for delivery of DNA and other biomolecules into living cells. Various methods of CNTs surface functionalization have been developed. These are essential to improve CNTs dispersibility and permit their interactions with biological structures that broaden their use in advanced biomedical applications. The present review discusses the different single walled carbon nanotubes and multiwalled carbon nanotubes functionalization methods, leading to the formation of optimized and functionalized-CNT complexes with DNA. F-CNTs are recognized as efficient and promising gene carriers. Emphasis is then placed on the processes used by f-CNTs/DNA complexes to cross cell membranes. Energy independent pathways and uptake mechanisms dependent on energy, such as endocytosis or phagocytosis, are reported by many studies, and if these mechanisms seem contradictory at first sight, a detailed review of the literature illustrates that they are rather complementary. Preferential use of one or the other depends on the DNA and CNTs chemical nature and physical parameters, experimental procedures and cell types.
    Statement of significance: Efficient non-viral gene delivery is desirable, yet challenging. CNTs appear as a promising solution to penetrate into cells and successfully deliver DNA. Moreover, the field of use of CNTs as gene carrier is large and is currently growing. This critical review summarizes the development and evaluation of CNTs as intracellular gene delivery system and provides an overview of functionalized CNTs/DNA cellular uptake mechanisms, depending on several parameters of CNTs/DNA complexes.
    MeSH term(s) Animals ; DNA/metabolism ; Endocytosis ; Gene Transfer Techniques ; Humans ; Nanotubes, Carbon/chemistry ; Phagocytosis ; Signal Transduction
    Chemical Substances Nanotubes, Carbon ; DNA (9007-49-2)
    Language English
    Publishing date 2017-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2173841-5
    ISSN 1878-7568 ; 1742-7061
    ISSN (online) 1878-7568
    ISSN 1742-7061
    DOI 10.1016/j.actbio.2016.11.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: EMT is associated with an epigenetic signature of ECM remodeling genes.

    Peixoto, Paul / Etcheverry, Amandine / Aubry, Marc / Missey, Anaïs / Lachat, Camille / Perrard, Jérôme / Hendrick, Elodie / Delage-Mourroux, Régis / Mosser, Jean / Borg, Christophe / Feugeas, Jean-Paul / Herfs, Michaël / Boyer-Guittaut, Michaël / Hervouet, Eric

    Cell death & disease

    2019  Volume 10, Issue 3, Page(s) 205

    Abstract: Type III epithelial-mesenchymal transition (EMT) has been previously associated with increased cell migration, invasion, metastasis, and therefore cancer aggressiveness. This reversible process is associated with an important gene expression ... ...

    Abstract Type III epithelial-mesenchymal transition (EMT) has been previously associated with increased cell migration, invasion, metastasis, and therefore cancer aggressiveness. This reversible process is associated with an important gene expression reprogramming mainly due to epigenetic plasticity. Nevertheless, most of the studies describing the central role of epigenetic modifications during EMT were performed in a single-cell model and using only one mode of EMT induction. In our study, we studied the overall modulations of gene expression and epigenetic modifications in four different EMT-induced cell models issued from different tissues and using different inducers of EMT. Pangenomic analysis (transcriptome and ChIP-sequencing) validated our hypothesis that gene expression reprogramming during EMT is largely regulated by epigenetic modifications of a wide range of genes. Indeed, our results confirmed that each EMT model is unique and can be associated with a specific transcriptome profile and epigenetic program. However, we could select some genes or pathways that are similarly regulated in the different models and that could therefore be used as a common signature of all EMT models and become new biomarkers of the EMT phenotype. As an example, we can cite the regulation of gene-coding proteins involved in the degradation of the extracellular matrix (ECM), which are highly induced in all EMT models. Based on our investigations and results, we identified ADAM19 as a new biomarker of in vitro and in vivo EMT and we validated this biological new marker in a cohort of non-small lung carcinomas.
    MeSH term(s) A549 Cells ; Epidermal Growth Factor/pharmacology ; Epigenesis, Genetic ; Epithelial-Mesenchymal Transition/genetics ; Gene Expression Profiling ; Gene Expression Regulation, Neoplastic ; Humans ; Neoplasms/genetics ; Neoplasms/pathology ; Retrospective Studies ; Tumor Necrosis Factor-alpha/pharmacology
    Chemical Substances Tumor Necrosis Factor-alpha ; Epidermal Growth Factor (62229-50-9)
    Language English
    Publishing date 2019-02-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2541626-1
    ISSN 2041-4889 ; 2041-4889
    ISSN (online) 2041-4889
    ISSN 2041-4889
    DOI 10.1038/s41419-019-1397-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Induction of oxiapoptophagy, a mixed mode of cell death associated with oxidative stress, apoptosis and autophagy, on 7-ketocholesterol-treated 158N murine oligodendrocytes: Impairment by α-tocopherol

    Nury, Thomas / Zarrouk, Amira / Vejux, Anne / Doria, Margaux / Riedinger, Jean Marc / Delage-Mourroux, Régis / Lizard, Gérard

    Biochemical and biophysical research communications. 2014 Apr. 11, v. 446

    2014  

    Abstract: 7-Ketocholesterol (7KC) has been suggested to induce a complex mode of cell death on monocytic cells: oxiapoptophagy (OXIdation, APOPTOsis, and autoPHAGY) (Monier et al. (2003) [12]). The aim of the present study, realized on 158N murine oligodendrocytes, ...

    Abstract 7-Ketocholesterol (7KC) has been suggested to induce a complex mode of cell death on monocytic cells: oxiapoptophagy (OXIdation, APOPTOsis, and autoPHAGY) (Monier et al. (2003) [12]). The aim of the present study, realized on 158N murine oligodendrocytes, was to bring new evidence on this mixed form of cell death. On 158N cells, 7KC induces an overproduction of reactive oxygen species (ROS) revealed by dihydroethidium staining, a loss of transmembrane mitochondrial potential measured with DiOC6(3), caspase-3 activation, and condensation and/or fragmentation of the nuclei which are typical criteria of oxidative stress and apoptosis. Moreover, 7KC enhances cytoplamic membrane permeability to propidium iodide, and induces acidic vesicular organelle formation evaluated with acridine orange. In addition, 7KC promotes conversion of microtubule-associated protein light chain 3 (LC3-I) to LC3-II which is characteristic of autophagy. These different side effects were impaired by α-tocopherol. Altogether, our data demonstrate that oxiapoptophagy including ROS overproduction, apoptosis and autophagy could be a particular type of cell death activated by 7KC which can be inhibited by α-tocopherol.
    Keywords acridine orange ; adverse effects ; alpha-tocopherol ; apoptosis ; autophagy ; caspase-3 ; membrane permeability ; mice ; mitochondria ; oligodendroglia ; oxidation ; oxidative stress ; propidium ; reactive oxygen species ; staining
    Language English
    Dates of publication 2014-0411
    Size p. 714-719.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2013.11.081
    Database NAL-Catalogue (AGRICOLA)

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