The LuxS/AI-2 Quorum-Sensing System of Streptococcus pneumoniae Is Required to Cause Disease, and to Regulate Virulence- and Metabolism-Related Genes in a Rat Model of Middle Ear Infection.

abstract：:Persistence has evolved as a potent survival strategy to overcome adverse environmental conditions. This capability is common to almost all bacteria, including all human bacterial pathogens and likely connected to chronic infections caused by some of these pathogens. Although the majority of a bacterial cell populatio...

journal_title：Frontiers in cellular and infection microbiology

authors： Eisenreich W,Rudel T,Heesemann J,Goebel W

更新日期：2021-01-14 00:00:00

abstract：:Dozens of Gram negative pathogens use one or more type III secretion systems (T3SS) to disarm host defenses or occupy a beneficial niche during infection of a host organism. While the T3SS represents an attractive drug target and dozens of compounds with T3SS inhibitory activity have been identified, few T3SS inhibito...

journal_title：Frontiers in cellular and infection microbiology

authors： Morgan JM,Lam HN,Delgado J,Luu J,Mohammadi S,Isberg RR,Wang H,Auerbuch V

更新日期：2018-11-22 00:00:00

abstract：:Programmed cell death plays crucial roles in organismal development and host defense. Recent studies have highlighted mechanistic overlaps and extensive, multifaceted crosstalk between pyroptosis, apoptosis, and necroptosis, three programmed cell death pathways traditionally considered autonomous. The growing body of ...

journal_title：Frontiers in cellular and infection microbiology

authors： Christgen S,Zheng M,Kesavardhana S,Karki R,Malireddi RKS,Banoth B,Place DE,Briard B,Sharma BR,Tuladhar S,Samir P,Burton A,Kanneganti TD

更新日期：2020-05-29 00:00:00

abstract：:Escherichia coli O157:H7 is a notorious pathogen often contracted by intake of contaminated water or food. Infection with this agent is associated with a broad spectrum of illness ranging from mild diarrhea and hemorrhagic colitis to the potentially fatal hemolytic uremic syndrome (HUS). Treating E. coli O157:H7 infec...

journal_title：Frontiers in cellular and infection microbiology

authors： Rahal EA,Kazzi N,Nassar FJ,Matar GM

更新日期：2012-11-15 00:00:00

abstract：:Postpartum depressive disorder (PPD) is a unique subtype of major depressive disorder and a substantial contributor to maternal morbidity and mortality. However, the pathogenesis of PPD has still remained elusive, and it may associate with genetic and environmental factors. Gut microbiota has already been proved to be...

journal_title：Frontiers in cellular and infection microbiology

authors： Zhou Y,Chen C,Yu H,Yang Z

更新日期：2020-09-29 00:00:00

abstract：:Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis (TB), which leads to an estimated 1. 5 million deaths worldwide each year. Although the immune correlates of protection against Mtb infection and TB disease have not been well-defined, natural killer (NK) cells are increasingly recognized as a key...

journal_title：Frontiers in cellular and infection microbiology

authors： Harris LD,Khayumbi J,Ongalo J,Sasser LE,Tonui J,Campbell A,Odhiambo FH,Ouma SG,Alter G,Gandhi NR,Day CL

更新日期：2020-03-24 00:00:00

abstract：:The concept of pathogenesis has evolved considerably over recent years, and the scenario "a microbe + virulence factors = disease" is probably far from reality in a number of cases. Actual pathogens have extremely broad biological diversity and are found in all major groups of microorganisms (viruses, bacteria, fungi,...

journal_title：Frontiers in cellular and infection microbiology

authors： Vayssier-Taussat M,Albina E,Citti C,Cosson JF,Jacques MA,Lebrun MH,Le Loir Y,Ogliastro M,Petit MA,Roumagnac P,Candresse T

更新日期：2014-03-05 00:00:00

abstract：:The intracellular pathogen Burkholderia pseudomallei, the etiological agent of melioidosis in humans and various animals, is capable of survival and movement within the cytoplasm of host cells by a process known as actin-based motility. The bacterial factor BimA is required for actin-based motility through its direct ...

journal_title：Frontiers in cellular and infection microbiology

authors： Srinon V,Chaiwattanarungruengpaisan S,Korbsrisate S,Stevens JM

更新日期：2019-03-22 00:00:00

abstract：:Quorum Sensing (QS) mediated by Acyl Homoserine Lactone (AHL) molecules are probably the most widespread and studied among Gram-negative bacteria. Canonical AHL systems are composed by a synthase (LuxI family) and a regulator element (LuxR family), whose genes are usually adjacent in the genome. However, incomplete AH...

journal_title：Frontiers in cellular and infection microbiology

authors： Martínez P,Huedo P,Martinez-Servat S,Planell R,Ferrer-Navarro M,Daura X,Yero D,Gibert I

更新日期：2015-05-15 00:00:00

abstract：:Antifolate resistance is significant in Kenya and presumed to result from extensive use and cross-resistance between antifolate antimalarials and antibiotics, including cotrimoxazole/Bactrim used for HIV-1 chemotherapy. However, little is known about antifolate-resistant malaria in the context of newly diagnosed HIV-1...

journal_title：Frontiers in cellular and infection microbiology

authors： Torrevillas BK,Garrison SM,McKeeken AJ,Patel D,Van Leuven JT,Dizon NI,Rivas KI,Hathaway NJ,Bailey JA,Waitumbi JN,Kifude CM,Oyieko J,Stewart VA,Luckhart S

更新日期：2020-11-26 00:00:00

abstract：:Pertussis is a respiratory infectious disease that has been resurged during the last decades. The change from the traditional multi-antigen whole-cell pertussis (wP) vaccines to acellular pertussis (aP) vaccines that consist of a few antigens formulated with alum, appears to be a key factor in the resurgence of pertus...

journal_title：Frontiers in cellular and infection microbiology

authors： Zurita ME,Wilk MM,Carriquiriborde F,Bartel E,Moreno G,Misiak A,Mills KHG,Hozbor D

更新日期：2019-04-26 00:00:00

abstract：:The black yeast Exophiala dermatitidis is a widespread polyextremophile and human pathogen, that is found in extreme natural habitats and man-made environments such as dishwashers. It can cause various diseases ranging from phaeohyphomycosis and systemic infections, with fatality rates reaching 40%. While the number o...

journal_title：Frontiers in cellular and infection microbiology

authors： Poyntner C,Blasi B,Arcalis E,Mirastschijski U,Sterflinger K,Tafer H

更新日期：2016-10-24 00:00:00

abstract：:Programmed cell death (PCD) can play a crucial role in tuning the immune response to microbial infection. Although PCD can occur in different forms, all are mediated by a family of proteases called caspases. Caspase-2 is the most conserved caspase, however, its function in cell death is ill-defined. Previously we demo...

journal_title：Frontiers in cellular and infection microbiology

authors： Bronner DN,O'Riordan MX,He Y

更新日期：2013-11-27 00:00:00

abstract：:The spirochete endoflagellum is a unique motility apparatus among bacteria. Despite its critical importance for pathogenesis, the full composition of the flagellum remains to be determined. We have recently reported that FcpA is a novel flagellar protein and a major component of the sheath of the filament of the spiro...

journal_title：Frontiers in cellular and infection microbiology

authors： Wunder EA Jr,Slamti L,Suwondo DN,Gibson KH,Shang Z,Sindelar CV,Trajtenberg F,Buschiazzo A,Ko AI,Picardeau M

更新日期：2018-05-08 00:00:00

abstract：:Escherichia coli O157:H7 and other pathogenic E. coli strains are enteric pathogens associated with food safety threats and which remain a significant cause of morbidity and mortality worldwide. In the current study, we investigated whether enterohemorrhagic E. coli (EHEC), Shiga toxin-producing E. coli (STEC), and en...

journal_title：Frontiers in cellular and infection microbiology

authors： Botkin DJ,Galli L,Sankarapani V,Soler M,Rivas M,Torres AG

更新日期：2012-02-14 00:00:00

abstract：:Interferon (IFN)-sensitive and replication-incompetent influenza viruses are likely to be the alternatives to inactivated and attenuated virus vaccines. Some IFN-sensitive influenza vaccine candidates with modified non-structural protein 1 (NS1) are highly attenuated in IFN-competent hosts but induce robust antiviral ...

journal_title：Frontiers in cellular and infection microbiology

authors： Chen C,Fan W,Li J,Zheng W,Zhang S,Yang L,Liu D,Liu W,Sun L

更新日期：2018-05-01 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

authors： Ding L,Yang Y,Li H,Wang H,Gao P

更新日期：2020-03-31 00:00:00

abstract：:Mammalian species contain an internal circadian (i.e., 24-h) clock that is synchronized to the day and night cycles. Large epidemiological studies, which are supported by carefully controlled studies in numerous species, support the idea that chronic disruption of our circadian cycles results in a number of health iss...

journal_title：Frontiers in cellular and infection microbiology

authors： Shivshankar P,Fekry B,Eckel-Mahan K,Wetsel RA

更新日期：2020-08-14 00:00:00

abstract：:Ten bacteriophages were isolated from faeces and their lytic effects assayed on 103 pathogenic and non-pathogenic Enterobacteriaceae. Two phages (DT1 and DT6) were selected based on their host ranges, and their lytic effects on pathogenic E. coli strains inoculated on pieces of beef were determined. We evaluated the r...

journal_title：Frontiers in cellular and infection microbiology

authors： Tomat D,Migliore L,Aquili V,Quiberoni A,Balagué C

更新日期：2013-06-06 00:00:00

abstract：:Whole genome sequencing (WGS) methods provide new possibilities in the field of molecular epidemiology. This is particularly true for monomorphic organisms where the discriminatory power of traditional methods (e.g., restriction enzyme length polymorphism typing, multi locus sequence typing etc.) is inadequate to eluc...

journal_title：Frontiers in cellular and infection microbiology

authors： Wittwer M,Altpeter E,Pilo P,Gygli SM,Beuret C,Foucault F,Ackermann-Gäumann R,Karrer U,Jacob D,Grunow R,Schürch N

更新日期：2018-03-22 00:00:00

abstract：:Zoysia japonica, in Brazil, is commonly infected by Rhizoctonia solani (R. solani) in humid and cool weather conditions. Eight isolates of R. solani, previously identified as belonging to the AG2-2 LP anastomosis group, isolated from samples from large path symptoms, were collected from three counties in São Paulo sta...

journal_title：Frontiers in cellular and infection microbiology

authors： Picarelli MASC,Forgia M,Rivas EB,Nerva L,Chiapello M,Turina M,Colariccio A

更新日期：2019-07-12 00:00:00

abstract：:The worldwide increase in antibiotic-resistant pathogens means that identification of alternative antibacterial drug targets and the subsequent development of new treatment strategies are urgently required. One such new target is the quorum sensing (QS) system. Coral microbial consortia harbor an enormous diversity of...

journal_title：Frontiers in cellular and infection microbiology

authors： Ma ZP,Song Y,Cai ZH,Lin ZJ,Lin GH,Wang Y,Zhou J

更新日期：2018-05-08 00:00:00

abstract：:ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumanni, Pseudomonas aeruginosa, and Enterobacter species) pathogens have characteristic multiple-drug resistance and cause an increasing number of nosocomial infections worldwide. Peptide-based therapeutics to treat ESKAPE infe...

journal_title：Frontiers in cellular and infection microbiology

authors： Du H,Puri S,McCall A,Norris HL,Russo T,Edgerton M

更新日期：2017-02-15 00:00:00

abstract：:Shigella is a Gram-negative bacterium that is responsible for shigellosis. Over the years, the study of Shigella has provided a greater understanding of how the host responds to bacterial infection, and how bacteria have evolved to effectively counter the host defenses. In this review, we provide an update on some of ...

journal_title：Frontiers in cellular and infection microbiology

authors： Killackey SA,Sorbara MT,Girardin SE

更新日期：2016-03-31 00:00:00

abstract：:Campylobacter jejuni (CJ) is the most prevalent zoonotic pathogen of chicken meat and related products, which may lead to gastroenteritis and autoimmune diseases in humans. Although controlling this bacterium is important, CJ strains resistance against traditional antibiotic therapy has been increased. Vegetable oils ...

journal_title：Frontiers in cellular and infection microbiology

authors： Ribeiro LNM,de Paula E,Rossi DA,Martins FA,de Melo RT,Monteiro GP,Breitkreitz MC,Goulart LR,Fonseca BB

更新日期：2021-01-08 00:00:00

abstract：:Iron is an absolute requirement for both the host and most pathogens alike and is needed for normal cellular growth. The acquisition of iron by biological systems is regulated to circumvent toxicity of iron overload, as well as the growth deficits imposed by iron deficiency. In addition, hosts, such as humans, need to...

journal_title：Frontiers in cellular and infection microbiology

authors： Fourie R,Kuloyo OO,Mochochoko BM,Albertyn J,Pohl CH

更新日期：2018-06-05 00:00:00

abstract：:Colorectal adenocarcinoma (CRC) is a common tumor with high mortality rates. Interestingly, CRC was found to be colonized by the oral anaerobic bacteria Fusobacterium nucleatum, which accelerates tumor progression and enables immune evasion. The CRC-specific colonization by fusobacteria is mediated through the recogni...

journal_title：Frontiers in cellular and infection microbiology

authors： Abed J,Maalouf N,Parhi L,Chaushu S,Mandelboim O,Bachrach G

更新日期：2017-06-30 00:00:00

abstract：:Sepsis is a life-threatening health condition caused by infectious pathogens of the respiratory tract, and accounts for 28-50% of annual deaths in the US alone. Current treatment regimen advocates the use of corticosteroids as adjunct treatment with antibiotics, for their broad inhibitory effect on the activity and pr...

journal_title：Frontiers in cellular and infection microbiology

authors： Ngo Ndjom CG,Kantor LV,Jones HP

更新日期：2017-06-22 00:00:00

abstract：:Background: Increasing evidence has shown that Helicobacter pylori is associated with coronary heart disease (CHD); however, the underlying mechanism remains unclear. Methods: The expression of miR-25 and mRNAs was measured using qRT-PCR. Protein levels were detected using western blotting and exosomes were assessed w...

journal_title：Frontiers in cellular and infection microbiology

authors： Li N,Liu SF,Dong K,Zhang GC,Huang J,Wang ZH,Wang TJ

更新日期：2019-10-29 00:00:00

abstract：:Bacillus anthracis, the causative agent of anthrax, has been a focus of study in host-pathogen dynamics since the nineteenth century. While the interaction between anthrax and host macrophages has been extensively modeled, comparatively little is known about the effect of anthrax on the immune function of neutrophils,...

journal_title：Frontiers in cellular and infection microbiology

authors： Liu JZ,Ali SR,Bier E,Nizet V

更新日期：2018-01-22 00:00:00