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  • MHO_0730 as a Surface-Expos...
    Cacciotto, Carla; Dessì, Daniele; Cubeddu, Tiziana; Cocco, Anna Rita; Pisano, Andrea; Tore, Gessica; Fiori, Pier Luigi; Rappelli, Paola; Pittau, Marco; Alberti, Alberto

    The Journal of infectious diseases, 11/2019, Letnik: 220, Številka: 12
    Journal Article

    Abstract Mycoplasma lipoproteins play a relevant role in pathogenicity and directly interact with the host immune system. Among human mycoplasmas, Mycoplasma hominis is described as a commensal bacterium that can be associated with a number of genital and extragenital conditions. Mechanisms of M. hominis pathogenicity are still largely obscure, and only a limited number of proteins have been associated with virulence. The current study focused on investigating the role of MHO_0730 as a virulence factor and demonstrated that MHO_0730 is a surface lipoprotein, potentially expressed in vivo during natural infection, acting both as a nuclease with its amino acidic portion and as a potent inducer of Neutrophil extracellular trapsosis with its N-terminal lipid moiety. Evidence for M. hominis neutrophil extracellular trap escape is also presented. Results highlight the relevance of MHO_0730 in promoting infection and modulation and evasion of innate immunity and provide additional knowledge on M. hominis virulence and survival in the host. Mycoplasma lipoproteins play a relevant role in pathogenicity. In this study we investigate the role of Mycoplasma hominis MHO_0730 as a virulence factor. Results highlight the relevance of MHO_0730 in promoting infection and modulating and evading the host immune response.