Sökning: "Yops"
Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet Yops.
1. Regulation of the multi-functional protein YscU in assembly of the Yersinia type III secretion injectisome
Sammanfattning : Yersinia pseudotuberculosis is a Gram-negative zoonotic pathogenic bacterium causing gastroenteritis in human and animals. It shares a conserved virulence plasmid encoding for a needle-like secretion machinery, or type III secretion system, which can be found in other pathogenic Gram-negative bacteria. LÄS MER
2. Studies of two Yersinia proteins: YopJ, an inhibitor of inflammatory responses, and YpkA, a RhoA/Rac-binding kinase
Sammanfattning : Eukaryotic cells possess sensitive systems for the detection of microbes and microbial-derived products. Bacteria-eukaryotic cells contact triggers several signaling pathways, most of which are dependent on protein-protein interactions followed by phosphorylation, leading to activation of defense mechanisms. LÄS MER
3. Timing and targeting of Type III secretion translocation of virulence effectors in Yersinia
Sammanfattning : The Type III secretion system (T3SS) is an important virulence mechanism that allows pathogenic bacteria to translocate virulence effectors directly into the cytoplasm of eukaryotic host cells to manipulate the host cells in favor of the pathogen. Enteropathogenic Yersinia pseudotuberculosis use a T3SS to translocate effectors, Yops, that prevent phagocytosis by immune cells, and is largely dependent on it to establish and sustain an infection in the lymphoid tissues of a mammalian host. LÄS MER
4. Inhibition of phagocyte signaling by the Yersinia virulence protein YopH
Sammanfattning : Yersinia pseudotuberculosis evades the immediate immune defense of a host organism by inhibiting bactericidal functions of phagocytes, including phagocytosis, cytokine release, and the oxidative burst. Consequently, this pathogen can survive and multiply in lymphatic tissues. An ensemble of proteins called Yops are involved in the virulence of Y. LÄS MER
5. Yersinia-phagocyte interactions during early infection
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
