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A Human Fallopian Tube Model for Investigation of C. trachomatis Infections
Published on: August 11, 2012
[Chlamydial pathogenesis: diagnostic and therapeutic consequences]
1Laboratoire de bactériologie, centre national de référence des infections à Chlamydia, université Victor-Segalen, Bordeaux-II, 146, rue Léo-Saignat, 33076 Bordeaux cedex, France. bertille.de.barbeyrac@u-bordeaux2.fr
Abstract:
Chlamydiae are among the most common of the human pathogens. Clinical persistence is a key concept in chlamydial pathogenesis. The damaging disease sequelae such as sterility caused by Chlamydia trachomatis and coronary artery disease associated with Chlamydia pneumoniae, are caused by inflammation-based pathology. Although chlamydiacidal antibiotics may kill the bacteria, chlamydial antigens may persist for prolonged period and there is evidence that these non-cultivable forms may lead to continued inflammation. The problem is the difficulty inherent in proving the presence of chronic chlamydial infection. Only nucleic acid amplification test can diagnose these large atypical forms. Clinical treatment failures have been reported and the persistence of the microorganisms raises the question about optimal therapy.
Insights
Chlamydiae bacteria can persist after antibiotic treatment, potentially causing chronic inflammation and disease. Detecting these persistent forms is challenging, impacting treatment effectiveness and patient outcomes.
Area of Science:
- Microbiology
- Immunology
- Pathogenesis
Context:
- Chlamydiae are common human pathogens responsible for significant diseases.
- Clinical persistence of Chlamydiae is a critical factor in pathogenesis.
- Inflammation-driven pathology underlies severe sequelae like sterility (Chlamydia trachomatis) and coronary artery disease (Chlamydia pneumoniae).
Purpose:
- To highlight the challenges in diagnosing chronic chlamydial infections.
- To discuss the implications of persistent chlamydial antigens on ongoing inflammation.
- To question the optimal therapeutic strategies for chlamydial infections given treatment failures.
Summary:
- Chlamydiacidal antibiotics may eliminate viable bacteria but leave persistent antigens.
- These non-cultivable forms can trigger prolonged inflammation, contributing to disease.
- Nucleic acid amplification tests are crucial for diagnosing these atypical forms.
Impact:
- Understanding chlamydial persistence is vital for managing inflammatory diseases.
- Improved diagnostic methods are needed to detect chronic infections.
- Re-evaluating treatment protocols may be necessary to address persistent chlamydial infections.
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