title: Salmonella effector proteins and host-cell responses.
abstract: Acute gastroenteritis caused by Salmonella enterica serovar typhimurium is a significant public health problem. This pathogen has very sophisticated molecular machinery encoded by the two pathogenicity islands, namely Salmonella Pathogenicity Island 1 and 2 (SPI-1 and SPI-2). Remarkably, both SPI-1 and SPI-2 are very tightly regulated in terms of timing of expression and spatial localization of the encoded effectors during the infection process within the host cell. This regulation is governed at several levels, including transcription and translation, and by post-translational modifications. In the context of a finely tuned regulatory system, we will highlight how these effector proteins co-opt host signaling pathways that control the ability of the organism to infect and survive within the host, as well as elicit host pro-inflammatory responses.
authors: Department of Microbiology and Physiological Systems, The University of Massachusetts Medical School, Worcester, MA 01655, USA.
authors: C V
authors: CV
authors: Srikanth
authors: Regino
authors: R
authors: Mercado-Lubo
authors: Kelly
authors: K
authors: Hallstrom
authors: Beth A
authors: BA
authors: McCormick
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics / Q000276:immunology*; D015964:Gene Expression Regulation, Bacterial; D044404:Genomic Islands; D054884:Host-Pathogen Interactions / Q000276:immunology*; D006801:Humans; D007113:Immunity, Innate / Q000276:immunology; D011499:Protein Processing, Post-Translational; D012480:Salmonella Infections / Q000276:immunology* / Q000503:physiopathology; D012486:Salmonella typhimurium / Q000235:genetics / Q000276:immunology* / Q000472:pathogenicity*; D015398:Signal Transduction / Q000502:physiology; D014617:Vacuoles / Q000378:metabolism / Q000382:microbiology
chemical_list: D001426:Bacterial Proteins