Abstract:
:Cell death can be critical for host defense against intracellular pathogens because it eliminates a crucial replicative niche, and pro-inflammatory cell death can alert neighboring cells to the presence of pathogenic organisms and enhance downstream immune responses. Pyroptosis is a pro-inflammatory form of cell death triggered by the inflammasome, a multi-protein complex that assembles in the cytosol to activate caspase-1. Inflammasome activation by pathogens hinges upon violation of the host cell cytosol by activities such as the use of pore-forming toxins, the use of specialized secretion systems, or the cytosolic presence of the pathogen itself. Recently, a non-canonical inflammasome has been described that activates caspase-11 and also leads to pro-inflammatory cell death. Caspase-11 is activated rapidly and robustly in response to violation of the cytosol by bacterial pathogens as well. In this mini-review, we describe the canonical and non-canonical inflammasome pathways that are critical for host defense against a model intracellular bacterial pathogen that accesses the host cytosol-Legionella pneumophila.
journal_name
Front Cell Infect Microbioljournal_title
Frontiers in cellular and infection microbiologyauthors
Casson CN,Shin Sdoi
10.3389/fcimb.2013.00111subject
Has Abstractpub_date
2013-12-27 00:00:00pages
111issn
2235-2988journal_volume
3pub_type
杂志文章,评审abstract::The cell envelope of pathogenic bacteria is a barrier against host environmental conditions and immunity molecules, as well as the site where many virulence factors are assembled. Extracytoplasmic stress responses (ESRs) have evolved to help maintain its integrity in conditions where it might be compromised. These ESR...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2012.00125
更新日期:2012-10-10 00:00:00
abstract::Melioidosis is a neglected tropical disease with high mortality rate. It is caused by the Gram-negative, CDC category B select agent Burkholderia pseudomallei (B. ps) that is intrinsically resistant to first-line antibiotics. An antibody-based vaccine is likely to be the most effective control measure. Previous studie...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00442
更新日期:2020-08-26 00:00:00
abstract::Acute pancreatitis (AP) is considered a cascade of immune responses triggered by acinar cell necrosis. AP involves two main processes of systemic inflammatory response syndrome and subsequent compensatory anti-inflammatory response syndrome. Although great efforts have been made regarding AP therapy, the mortality rat...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.00128
更新日期:2020-03-31 00:00:00
abstract::Brucella is a facultative intracellular pathogen that causes zoonotic infection known as brucellosis which results in abortion and infertility in natural host. Humans, especially in low income countries, can acquire infection by direct contact with infected animal or by consumption of animal products and show high mor...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2016.00030
更新日期:2016-03-15 00:00:00
abstract::Under unfavorable conditions such as host immune responses and environmental stresses, human pathogen Mycobacterium tuberculosis may acquire the dormancy phenotype characterized by "non-culturability" and a substantial decrease of metabolic activity and global transcription rates. Here, we found that the transition of...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00272
更新日期:2019-07-30 00:00:00
abstract::Objectives:Citrobacter freundii is a frequent cause of nosocomial infections and a known cause of diarrheal infections, and has increasingly become multidrug resistant (MDR). In this study, we aimed to determine the genetic diversity, the antimicrobial resistance profiles and in vitro virulence properties of C. freund...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2018.00233
更新日期:2018-07-10 00:00:00
abstract::Apicomplexan parasites, such as human malaria parasites, have complex lifecycles encompassing multiple and diverse environmental niches. Invading, replicating, and escaping from different cell types, along with exploiting each intracellular niche, necessitate large and dynamic changes in parasite morphology and cellul...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.611801
更新日期:2021-01-08 00:00:00
abstract::Lipophilic yeasts of the genus Malassezia are important skin commensals and opportunistic skin pathogens in a variety of animals. The species M. pachydermatis was first isolated from the skin of a captive Indian rhinoceros with an exfoliative dermatitis in 1925, recognized as an important otic pathogen of dogs in the ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.00079
更新日期:2020-02-28 00:00:00
abstract::While microbiome plays key roles in the etiology of multiple sclerosis (MS), its mechanism remains elusive. Here, we conducted a comprehensive metagenome-wide association study (MWAS) of the relapsing-remitting MS gut microbiome (ncase = 26, ncontrol = 77) in the Japanese population, by using whole-genome shotgun sequ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.585973
更新日期:2020-12-11 00:00:00
abstract::Stress granules (SGs) are sites of mRNA storage that are formed in response to various conditions of stress, including viral infections. Porcine reproductive and respiratory syndrome virus (PRRSV) is an Arterivirus that has been devastating the swine industry worldwide since the late 1980s. In this study, we found tha...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00111
更新日期:2017-04-04 00:00:00
abstract::Mycoplasma hyopneumoniae (M. hyopneumoniae) is the causative agent of pandemic pneumonia among pigs, namely, swine enzootic pneumonia. Although M. hyopneumoniae was first identified in 1965, little is known regarding its metabolic pathways, which might play a pivotal role during disease pathogenesis. Lipoate is an ess...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00156
更新日期:2020-04-21 00:00:00
abstract::Chronic HCV infection is characterized by several immunological alterations, such as the accumulation of suppressor cells and of hyperactivated T lymphocytes. However, it is unclear whether direct-acting antiviral (DAA)-mediated HCV clearance restores immune dysfunctions. We performed a phenotypic characterization by ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00190
更新日期:2019-06-14 00:00:00
abstract::Salmonella is a facultative intracellular Gram-negative bacterium, responsible for a wide range of food- and water-borne diseases ranging from gastroenteritis to typhoid fever depending on hosts and serotypes. Salmonella thus represents a major threat to public health. A key step in Salmonella pathogenesis is the inva...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2017.00500
更新日期:2017-12-08 00:00:00
abstract::Streptococcus dentisani 7746, isolated from dental plaque of caries-free individuals, has been shown to have several beneficial effects in vitro which could contribute to promote oral health, including an antimicrobial activity against oral pathogens by the production of bacteriocins and a pH buffering capacity throug...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00465
更新日期:2020-08-31 00:00:00
abstract::Lipids are essential players in parasites pathogenesis. In particular, the highly phagocytic trophozoites of Entamoeba histolytica, the causative agent of amoebiasis, exhibit a dynamic membrane fusion and fission, in which lipids strongly participate; particularly during the overstated motility of the parasite to reac...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.00075
更新日期:2020-03-10 00:00:00
abstract::Bacteria of the Salmonella genus cause diseases ranging from gastroenteritis to life-threatening typhoid fever and are among the most successful intracellular pathogens known. After the invasion of the eukaryotic cell, Salmonella exhibits contrasting lifestyles with different replication rates and subcellular location...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2017.00432
更新日期:2017-10-04 00:00:00
abstract::Dermatophytosis is one of the most common human infections affecting both immunocompetent individuals and immunocompromised patients, in whom the disease is more aggressive and can reach deep tissues. Over the last decades, cases of deep dermatophytosis have increased and the dermatophyte-host interplay remains poorly...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00008
更新日期:2017-01-20 00:00:00
abstract::Previous studies demonstrated that oral antibiotic (ABX) treatment prior to and during influenza A virus (IAV) infection of adult mice profoundly altered gut microbiota (GM) and was associated with increased susceptibility and impaired immunity to IAV. We examined the impact of ABX during critical times relevant to th...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2018.00319
更新日期:2018-09-12 00:00:00
abstract::For centuries, hydrogen sulfide (H2S) was considered primarily as a poisonous gas and environmental hazard. However, with the discovery of prokaryotic and eukaryotic enzymes for H2S production, breakdown, and utilization, H2S has emerged as an important signaling molecule in a wide range of physiological and pathologi...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.586923
更新日期:2020-11-10 00:00:00
abstract::The Mycobacterium fortuitum complex comprises several closely related species, causing pulmonary and extra-pulmonary infections. However, there is very limited knowledge about the disease pathogenesis involved in M. fortuitum infections, particularly due to the lack of suitable animal models. Using the zebrafish model...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00357
更新日期:2020-07-17 00:00:00
abstract::Objective:Streptococcus pneumoniae colonizes the nasopharynx of children, and from nasopharynx it could migrate to the middle ear and causes acute otitis media (AOM). During colonization and AOM, the pneumococcus forms biofilms. In vitro biofilm formation requires a functional LuxS/AI-2 quorum-sensing system. We inves...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2018.00138
更新日期:2018-05-04 00:00:00
abstract::Rift Valley fever (RVF) is endemic to sub-Saharan Africa, and has spread into Madagascar, Egypt, Saudi Arabia, and Yemen. Rift Valley fever virus (RVFV) of the family Bunyaviridae, genus Phlebovirus causes hemorrhagic fever, neurological disorders or blindness in humans, and high rate abortion and fetal malformation i...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2012.00131
更新日期:2012-10-26 00:00:00
abstract::To discern if there was a particular genotype associated with clinical enteroaggregative Escherichia coli (EAEC) strains isolated from deployed military personnel (DMP) with travelers' diarrhea (TD), we characterized a collection of EAEC from DMP deployed to Afghanistan, Djibouti, Kenya, or Honduras. Although we did n...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2020.00200
更新日期:2020-05-20 00:00:00
abstract::To define the bottlenecks that restrict antigen expression after oral administration of viral-vectored vaccines, we tracked vectors derived from the human adenovirus type 5 at whole body, tissue, and cellular scales throughout the digestive tract in a murine model of oral delivery. After intragastric administration of...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2018.00006
更新日期:2018-01-25 00:00:00
abstract::Brucella spp. cause undulant fever in humans and brucellosis in variety of other animals. Both innate and adaptive immunity have been shown to be important in controlling Brucella infection. Toll-like receptors (TLRs) represent a group of pattern recognition receptors (PRRs) that play critical roles in the host innate...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2012.00115
更新日期:2012-09-07 00:00:00
abstract::Enteropathogenic Escherichia coli and enterohemorrhagic E. coli are diarrheagenic bacterial human pathogens that cause severe gastroenteritis. These enteric pathotypes, together with the mouse pathogen Citrobacter rodentium, belong to the family of attaching and effacing pathogens that form a distinctive histological ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2016.00129
更新日期:2016-10-21 00:00:00
abstract::Meningitis, the inflammation of the protective membrane surrounding the brain and spinal cord (known as meninges), is a condition associated with high mortality rates and permanent neurological sequelae in a significant proportion of survivors. The opportunistic pathogen Streptococcus pneumoniae (SPN/pneumococcus) is ...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2020.590682
更新日期:2020-11-03 00:00:00
abstract::Vibrio parahaemolyticus, autochthonous to estuarine, marine, and coastal environments throughout the world, is the causative agent of food-borne gastroenteritis. More than 80 serotypes have been described worldwide, based on antigenic properties of the somatic (O) and capsular (K) antigens. Serovar O3:K6 emerged in In...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章,评审
doi:10.3389/fcimb.2013.00097
更新日期:2013-12-11 00:00:00
abstract::Myocarditis, inflammation of the heart muscle, affects all demographics and is a major cause of sudden and unexpected death in young people. It is most commonly caused by viral infections of the heart, with coxsackievirus B3 (CVB3) being among the most prevalent pathogens. To understand the molecular pathogenesis of C...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2019.00265
更新日期:2019-07-24 00:00:00
abstract::Nosocomial pathogens that develop multidrug resistance present an increasing problem for healthcare facilities. Due to its rapid rise in antibiotic resistance, Acinetobacter baumannii is one of the most concerning gram-negative species. A. baumannii typically infects immune compromised individuals resulting in a varie...
journal_title:Frontiers in cellular and infection microbiology
pub_type: 杂志文章
doi:10.3389/fcimb.2017.00380
更新日期:2017-08-28 00:00:00