Related Experiment Video
Updated: Aug 12, 2026

09:03
Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 24, 2013
Persistent chlamydiae: from cell culture to a paradigm for chlamydial pathogenesis
W L Beatty1, R P Morrison, G I Byrne
1Department of Medical Microbiology and Immunology, University of Wisconsin, Madison 53706.
Microbiological Reviews
|December 1, 1994
Summary
Chlamydia infections can lead to chronic inflammation. This review explores how persistent chlamydial infections, alongside repeated infections, may worsen disease by altering bacterial growth and host immune responses.
Area of Science:
- Microbiology
- Immunology
- Pathogenesis
Background:
- Chlamydiae are significant bacterial pathogens causing diverse human infections.
- Repeated chlamydial infections can exacerbate chronic inflammation and immune-mediated pathology.
- The pathogenesis of chlamydial diseases may involve persistent infections superimposed on acute episodes.
Purpose of the Study:
- To review in vitro studies on chlamydial persistence.
- To correlate findings from experimental persistence models with natural chlamydial disease features.
- To explore the flexibility of the chlamydial developmental cycle.
Main Methods:
- Evaluation of in vitro studies investigating chlamydial persistence.
- Analysis of host-derived factors influencing chlamydial growth and development.
- Correlation of cell culture models with clinical observations of chlamydial infections.
Main Results:
- Host factors can induce chlamydiae to enter a non-productive, persistent stage.
- Altered chlamydial growth forms are observed in various cell culture systems.
- Persistence mechanisms suggest inherent adaptability in the chlamydial life cycle.
Conclusions:
- Chlamydial persistence is a key factor in understanding disease progression.
- In vitro persistence models offer insights into chlamydial pathogenesis.
- The developmental plasticity of Chlamydia contributes to chronic and recurrent infections.
Related Concept Videos
Sexually Transmitted Infections
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
Bacterial Phylum Chlamydiae
The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic of...
Trichomoniasis
Trichomonas vaginalis is a flagellated protozoan parasite and the causative agent of trichomoniasis, one of the most prevalent non-viral sexually transmitted infections in the United States. This extracellular parasite primarily colonizes the lower genitourinary tract in women—particularly the vagina—and in men, the urethra and prostate. Its structural and functional adaptations enable its survival, motility, and pathogenicity within the host environment.Structural Features and Host EntryT.

