Related Experiment Video
Updated: Aug 19, 2026

10:19
Derivation of Mouse Trophoblast Stem Cells from Blastocysts
Published on: June 8, 2010
Chlamydia trachomatis infection of mouse trophoblasts
Infection and Immunity
|October 1, 1982
Abstract:
Chlamydia trachomatis (strains L2 and DE) were found to infect fertilized mouse ova in vitro. Inclusions were found in the trophoblast, but not in the embryo.
Insights
Chlamydia trachomatis, a bacterium, can infect fertilized mouse eggs in laboratory settings. The infection was observed in the trophoblast cells, which support fetal development, but not within the early embryo itself.
Area of Science:
- Reproductive biology
- Microbiology
- Cell biology
Background:
- Chlamydia trachomatis is a common bacterial pathogen.
- The early stages of mammalian embryonic development are critical for successful reproduction.
- Understanding pathogen interactions with early embryos is crucial for reproductive health.
Purpose of the Study:
- To investigate the in vitro infectivity of Chlamydia trachomatis in fertilized mouse ova.
- To determine the specific cellular targets of Chlamydia trachomatis within the early conceptus.
Main Methods:
- Fertilized mouse ova were cultured in vitro.
- Infection with Chlamydia trachomatis strains L2 and DE was performed.
- Infected ova were examined for the presence of Chlamydia inclusions using microscopy.
Main Results:
- Chlamydia trachomatis successfully infected fertilized mouse ova in vitro.
- Inclusions, indicative of Chlamydia infection, were identified within the trophoblast cells.
- No evidence of Chlamydia infection was found in the embryonic cells.
Conclusions:
- Chlamydia trachomatis can infect early-stage mouse embryos, specifically targeting the trophoblast.
- The trophoblast may serve as an initial site for Chlamydia infection during early embryonic development.
- Further research is needed to understand the implications of trophoblast infection for embryonic development and reproductive outcomes.

