Sökning: "YopE"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet YopE.

  1. 1. The multifunctional GAP protein YopE of Yersinia is involved in effector translocation control and virulence

    Författare :Elin Isaksson; Hans Wolf-Watz; Joseph Barbieri; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Yersinia; T3SS; YopE; GAP activity; translocation control; virulence; Molecular biology; Molekylärbiologi; molekylärbiologi; Molecular Biology;

    Sammanfattning : The Gram-negative bacterium Yersinia pseudotuberculosis employs a type 3 secretion system (T3SS) to establish infections. The T3SS translocates a diverse set of effector proteins directly into the host cells. LÄS MER

  3. 2. Role of YopE and LcrH in effector translocation, HeLa cell cytotoxicity and virulence

    Författare :Margareta Aili; Roland Rosqvist; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia pseudotuberculosis; bacterial pathogenesis; YopE; LcrH; virulence; effector translocation; type III secretion; regulation; Cell and molecular biology; Cell- och molekylärbiologi;

    Sammanfattning : In order to establish an extra-cellular infection the gram-negative bacteria Yersinia pseudotuberculosis uses a type III secretion system (T3SS) to translocate a set of anti-host effectors into eukaryotic cells. The toxins disrupt signalling pathways important for phagocytosis, cytokine production and cell survival. LÄS MER

  4. 3. Yersinia-phagocyte interactions during early infection

    Författare :Linda Westermark; Maria Fällman; Joan Mecsas; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia; dendritic cell; macrophage; neutrophil; T3SS; Infectious Diseases; infektionssjukdomar;

    Sammanfattning : Pathogenic Gram-negative Yersinia species preferentially target and inactivate phagocytic cells of the innate immune defense by translocation of effector Yersinia outer proteins (Yops) into the cells via a type III secretion system. This indicates that inactivation and avoidance of the early innate immune response is an efficient way for Yersinia species to avoid elimination and to cause diseases ranging from mild gastroenteritis (Y. LÄS MER

  5. 4. Host-pathogen interactions during Campylobacter and Yersinia infections

    Författare :Nayyer Taheri; Anna Fahlgren; Maria Fällman; Sun Nyunt Wai; Elena Vikström; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Campylobacter jejuni; Yersinia pseudotuberculosis; OMV; bile; temperature; proteomic;

    Sammanfattning : The innate immune system is known for protecting the host against invading pathogens, for instance enteropathogens infecting the gastrointestinal tract. The production of e.g. antimicrobial peptides, cytokines, and chemokines by innate immune cells and intestinal epithelial cells contribute to bacterial clearance. LÄS MER

  7. 5. Chemical attenuation of bacterial virulence : small molecule inhibitors of type III secretion

    Författare :Anna Kauppi; Mikael Elofsson; Anders Karlén; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; antibiotic resistance; virulence; type III secretion; T3SS inhibitors; Yop; SMD; QSAR; screening; Yersinia pseudotuberculosis; Organic chemistry; Organisk kemi;

    Sammanfattning : Despite the large arsenal of antibiotics available on the market, treatment of bacterial infections becomes more challenging in view of the fact that microbes develop resistance against existing drugs. There is an obvious need for novel drugs acting on both old and new targets in bacteria. LÄS MER