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Sökning: onr:"swepub:oai:DiVA.org:umu-119661" > Dissection of Franc...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003820naa a2200397 4500
001oai:DiVA.org:umu-119661
003SwePub
008160425s2016 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1196612 URI
024a https://doi.org/10.1128/AEM.02950-152 DOI
040 a (SwePub)umu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Lampe, Elisabeth O.4 aut
2451 0a Dissection of Francisella-Host Cell Interactions in Dictyostelium discoideum
264 1b American Society for Microbiology,c 2016
338 a print2 rdacarrier
520 a Francisella bacteria cause severe disease in both vertebrates and invertebrates and include one of the most infectious human pathogens. Mammalian cell lines have mainly been used to study the mechanisms by which Francisella manipulates its host to replicate within a large variety of hosts and cell types, including macrophages. Here, we describe the establishment of a genetically and biochemically tractable infection model: the amoeba Dictyostelium discoideum combined with the fish pathogen Francisella noatunensis subsp. noatunensis. Phagocytosed F. noatunensis subsp. noatunensis interacts with the endosomal pathway and escapes further phagosomal maturation by translocating into the host cell cytosol. F. noatunensis subsp. noatunensis lacking IglC, a known virulence determinant required for Francisella intracellular replication, follows the normal phagosomal maturation and does not grow in Dictyostelium. The attenuation of the F. noatunensis subsp. noatunensis Delta iglC mutant was confirmed in a zebrafish embryo model, where growth of F. noatunensis subsp. noatunensis Delta iglC was restricted. In Dictyostelium, F. noatunensis subsp. noatunensis interacts with the autophagic machinery. The intracellular bacteria colocalize with autophagic markers, and when autophagy is impaired (Dictyostelium Delta atg1), F. noatunensis subsp. noatunensis accumulates within Dictyostelium cells. Altogether, the Dictyostelium-F. noatunensis subsp. noatunensis infection model recapitulates the course of infection described in other host systems. The genetic and biochemical tractability of the system allows new approaches to elucidate the dynamic interactions between pathogenic Francisella and its host organism.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Mikrobiologi inom det medicinska området0 (SwePub)301092 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Microbiology in the medical area0 (SwePub)301092 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinsk bioteknologix Medicinsk bioteknologi0 (SwePub)304012 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Medical Biotechnologyx Medical Biotechnology0 (SwePub)304012 hsv//eng
700a Brenz, Yannick4 aut
700a Herrmann, Lydia4 aut
700a Repnik, Urska4 aut
700a Griffiths, Gareth4 aut
700a Zingmark, Carlu Umeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten)4 aut0 (Swepub:umu)cazi0001
700a Sjöstedt, Anders,d 1957-u Umeå universitet,Molekylär Infektionsmedicin, Sverige (MIMS),Klinisk bakteriologi,Anders Sjöstedt4 aut0 (Swepub:umu)ansj0004
700a Winther-Larsen, Hanne C.4 aut
700a Hagedorn, Monica4 aut
710a Umeå universitetb Institutionen för molekylärbiologi (Medicinska fakulteten)4 org
773t Applied and Environmental Microbiologyd : American Society for Microbiologyg 82:5, s. 1586-1598q 82:5<1586-1598x 0099-2240x 1098-5336
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-119661
8564 8u https://doi.org/10.1128/AEM.02950-15

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