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  1. Article ; Online: Regulation of Innate Immune Responses by Autophagy: A Goldmine for Viruses.

    Pradel, Baptiste / Robert-Hebmann, Véronique / Espert, Lucile

    Frontiers in immunology

    2020  Volume 11, Page(s) 578038

    Abstract: Autophagy is a lysosomal degradation pathway for intracellular components and is highly conserved across eukaryotes. This process is a key player in innate immunity and its activation has anti-microbial effects by directly targeting pathogens and also by ...

    Abstract Autophagy is a lysosomal degradation pathway for intracellular components and is highly conserved across eukaryotes. This process is a key player in innate immunity and its activation has anti-microbial effects by directly targeting pathogens and also by regulating innate immune responses. Autophagy dysfunction is often associated with inflammatory diseases. Many studies have shown that it can also play a role in the control of innate immunity by preventing exacerbated inflammation and its harmful effects toward the host. The arms race between hosts and pathogens has led some viruses to evolve strategies that enable them to benefit from autophagy, either by directly hijacking the autophagy pathway for their life cycle, or by using its regulatory functions in innate immunity. The control of viral replication and spread involves the production of anti-viral cytokines. Controlling the signals that lead to production of these cytokines is a perfect way for viruses to escape from innate immune responses and establish successful infection. Published reports related to this last viral strategy have extensively grown in recent years. In this review we describe several links between autophagy and regulation of innate immune responses and we provide an overview of how viruses exploit these links for their own benefit.
    MeSH term(s) Animals ; Antiviral Agents/pharmacology ; Autophagy/drug effects ; Autophagy-Related Proteins/metabolism ; Host-Pathogen Interactions ; Humans ; Immunity, Innate/drug effects ; Inflammation Mediators ; Signal Transduction ; Viruses/drug effects ; Viruses/immunology ; Viruses/pathogenicity
    Chemical Substances Antiviral Agents ; Autophagy-Related Proteins ; Inflammation Mediators
    Keywords covid19
    Language English
    Publishing date 2020-10-06
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2020.578038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: LC3B conjugation machinery promotes autophagy-independent HIV-1 entry in CD4

    Pradel, Baptiste / Cantaloube, Guilhem / Villares, Marie / Deffieu, Maïka S / Robert-Hebmann, Véronique / Lucansky, Vincent / Faure, Mathias / Chazal, Nathalie / Gaudin, Raphaël / Espert, Lucile

    Autophagy

    2024  , Page(s) 1–12

    Abstract: HIV-1 entry into ... ...

    Abstract HIV-1 entry into CD4
    Language English
    Publishing date 2024-04-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2454135-7
    ISSN 1554-8635 ; 1554-8627
    ISSN (online) 1554-8635
    ISSN 1554-8627
    DOI 10.1080/15548627.2024.2338573
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: La phagocytose associée à LC3 (LAP) - Phagocytose ou autophagie ?

    Galais, Mathilde / Pradel, Baptiste / Vergne, Isabelle / Robert-Hebmann, Véronique / Espert, Lucile / Biard-Piechaczyk, Martine

    Medecine sciences : M/S

    2019  Volume 35, Issue 8-9, Page(s) 635–642

    Abstract: Phagocytosis and macroautophagy, named here autophagy, are two essential mechanisms of lysosomal degradation of diverse cargos into membrane structures. Both mechanisms are involved in immune regulation and cell survival. However, phagocytosis triggers ... ...

    Title translation LAP (LC3-associated phagocytosis): phagocytosis or autophagy?
    Abstract Phagocytosis and macroautophagy, named here autophagy, are two essential mechanisms of lysosomal degradation of diverse cargos into membrane structures. Both mechanisms are involved in immune regulation and cell survival. However, phagocytosis triggers degradation of extracellular material whereas autophagy engulfs only cytoplasmic elements. Furthermore, activation and maturation of these two processes are different. LAP (LC3-associated phagocytosis) is a form of phagocytosis that uses components of the autophagy pathway. It can eliminate (i) pathogens, (ii) immune complexes, (iii) threatening neighbouring cells, dead or alive, and (iv) cell debris, such as POS (photoreceptor outer segment) and the midbody released at the end of mitosis. Cells have thus optimized their means of elimination of dangerous components by sharing some fundamental elements coming from the two main lysosomal degradation pathways.
    MeSH term(s) Animals ; Autophagy/physiology ; Humans ; Immune Evasion/physiology ; Infections/immunology ; Infections/metabolism ; Infections/pathology ; Macrophages/immunology ; Microtubule-Associated Proteins/physiology ; Phagocytosis/physiology ; Phagosomes/immunology
    Chemical Substances MAP1LC3A protein, human ; Microtubule-Associated Proteins
    Language French
    Publishing date 2019-09-18
    Publishing country France
    Document type Journal Article ; Review
    ZDB-ID 632733-3
    ISSN 1958-5381 ; 0767-0974
    ISSN (online) 1958-5381
    ISSN 0767-0974
    DOI 10.1051/medsci/2019129
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: HIV-1 Env induces pexophagy and an oxidative stress leading to uninfected CD4

    Daussy, Coralie F / Galais, Mathilde / Pradel, Baptiste / Robert-Hebmann, Véronique / Sagnier, Sophie / Pattingre, Sophie / Biard-Piechaczyk, Martine / Espert, Lucile

    Autophagy

    2020  Volume 17, Issue 9, Page(s) 2465–2474

    Abstract: The immunodeficiency observed in HIV-1-infected patients is mainly due to uninfected bystander ... ...

    Abstract The immunodeficiency observed in HIV-1-infected patients is mainly due to uninfected bystander CD4
    MeSH term(s) Autophagy ; CD4-Positive T-Lymphocytes ; Cell Death ; HIV-1 ; Humans ; Macroautophagy ; Oxidative Stress ; T-Lymphocytes
    Language English
    Publishing date 2020-10-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2454135-7
    ISSN 1554-8635 ; 1554-8627
    ISSN (online) 1554-8635
    ISSN 1554-8627
    DOI 10.1080/15548627.2020.1831814
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Clinical sources and antimicrobial susceptibility of Prevotella timonensis at the university hospital of Montpellier, France.

    Aberkane, Salim / Pradel, Baptiste / Dumont, Yann / Veloo, Alida C M / Laurens, Chrislène / Bonzon, Lucas / Godreuil, Sylvain / Marchandin, Hélène / Jean-Pierre, Hélène

    Anaerobe

    2018  Volume 50, Page(s) 19–21

    Abstract: We describe 84 clinical isolates of Prevotella timonensis recovered between January 2007 and November 2016 at the University Hospital of Montpellier. They were recovered from a variety of clinical samples, mostly of genital and wound origins. All ... ...

    Abstract We describe 84 clinical isolates of Prevotella timonensis recovered between January 2007 and November 2016 at the University Hospital of Montpellier. They were recovered from a variety of clinical samples, mostly of genital and wound origins. All isolates were isolated from a mixed aerobic and anaerobic microbiota. Antimicrobial susceptibility testing of 50 isolates showed 56% of beta-lactamase production and 40% of resistance to clindamycin. One strain was resistant to metronidazole.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Anti-Bacterial Agents/pharmacology ; Bacteria, Anaerobic/classification ; Bacteria, Anaerobic/drug effects ; Bacteria, Anaerobic/isolation & purification ; Bacteroidaceae Infections/diagnosis ; Bacteroidaceae Infections/microbiology ; Child ; Child, Preschool ; Cross Infection ; Drug Resistance, Bacterial/drug effects ; Female ; France ; Hospitals, University ; Humans ; Infant ; Infant, Newborn ; Male ; Metronidazole/pharmacology ; Microbial Sensitivity Tests ; Middle Aged ; Prevotella/classification ; Prevotella/drug effects ; Prevotella/genetics ; Prevotella/isolation & purification ; RNA, Ribosomal, 16S/genetics ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Young Adult
    Chemical Substances Anti-Bacterial Agents ; RNA, Ribosomal, 16S ; Metronidazole (140QMO216E)
    Language English
    Publishing date 2018-01-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 1237621-8
    ISSN 1095-8274 ; 1075-9964
    ISSN (online) 1095-8274
    ISSN 1075-9964
    DOI 10.1016/j.anaerobe.2018.01.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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