Search results for "Chlamydiae"

showing 3 items of 3 documents

Infecciones por clamidias

2007

Las clamidias son un grupo peculiar de bacterias, cuyo ciclo vital transcurre en parte en el interior de las células. Tienen la propiedad de adherirse a determinados epitelios, en los que pueden acabar produciendo infecciones. Existen tres especies patógenas para el hombre: Chlamydia trachomatis, que produce infecciones fundamentalmente en los epitelios genital y urinario, y C. psittaci y C. pneumoniae, que producen fundamentalmente infecciones respiratorias. A las dos últimas se les clasifica en la actualidad en un género diferente, el de las Chlamydophilas.

Chlamydophilabiologybusiness.industryInfecciones genitalesInfecciones respiratoriasMicroorganismChlamydiaeurologic and male genital diseasesmedicine.disease_causebiology.organism_classificationClamidiasfemale genital diseases and pregnancy complicationsMicrobiologyInternal MedicineMedicineSex organInfecciones urinariasbusinessChlamydia trachomatisBacteria
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A search for beta-lactamase in chlamydiae, mycoplasmas, planctomycetes, and cyanelles: bacteria and bacterial descendants at different phylogenetic p…

2000

Bacteria from different phylogenetic positions such as chlamydiae, mycoplasmas, planctomycetes and also endosymbiotic murein-containing cyanelles were investigated for the production of beta-lactamases. No beta-lactamase activity was found in bacteria lacking murein such as Chlamydia pneumoniae, Mycoplasma pneumoniae, Pirellula marina and Planctomyces maris. In the murein-containing cyanelles of Cyanophora paradoxa no beta-lactamase activity could be detected.

biologyBacteriaPlanctomycetesChlamydiaeEukaryotaMycoplasmataceaeMycoplasmaPeptidoglycanbiochemical phenomena metabolism and nutritionChlamydophila pneumoniaemedicine.disease_causebiology.organism_classificationMicrobiologybeta-LactamasesMicrobiologyMycoplasma pneumoniaecarbohydrates (lipids)Cell WallChlamydialesmedicineMollicutesbacteriaCyanophora paradoxaBacteriaPhylogenyMicrobiological research
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AP-1 Transcription Factor Serves as a Molecular Switch between Chlamydia pneumoniae Replication and Persistence

2015

ABSTRACT Chlamydia pneumoniae is a Gram-negative bacterium that causes acute or chronic respiratory infections. As obligate intracellular pathogens, chlamydiae efficiently manipulate host cell processes to ensure their intracellular development. Here we focused on the interaction of chlamydiae with the host cell transcription factor activator protein 1 (AP-1) and its consequence on chlamydial development. During Chlamydia pneumoniae infection, the expression and activity of AP-1 family proteins c-Jun, c-Fos, and ATF-2 were regulated in a time- and dose-dependent manner. We observed that the c-Jun protein and its phosphorylation level significantly increased during C. pneumoniae development.…

Small interfering RNAGene knockdownCellular Microbiology: Pathogen-Host Cell Molecular InteractionsTranscription GeneticImmunologyChlamydiaeGene Expression Regulation BacterialHep G2 CellsChlamydophila pneumoniaeBiologybiology.organism_classificationMicrobiologyBacterial LoadMicrobiologyTranscription Factor AP-1AP-1 transcription factorInfectious DiseasesTranscription (biology)Host-Pathogen InteractionsHepatocytesHumansPhosphorylationParasitologyTranscription factorIntracellularInfection and Immunity
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