A mouse model of placenta accreta spectrum
Suzanne D Burke1, Zsuzsanna K Zsengellér1, S Ananth Karumanchi2
1Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.
Placenta
|July 28, 2020
Summary
Researchers developed a mouse model for Placenta Accreta Spectrum (PAS) disorder by creating uterine scars. This model shows deeper trophoblast invasion and myometrial disruption, aiding PAS research.
Area of Science:
- Reproductive biology
- Surgical pathology
- Maternal-fetal medicine
Background:
- Placenta Accreta Spectrum (PAS) is a major cause of maternal mortality, often linked to prior uterine surgery.
- Existing knowledge of PAS pathogenesis is limited by a lack of suitable animal models.
Purpose of the Study:
- To establish and validate a novel mouse model for studying Placenta Accreta Spectrum (PAS).
- To investigate the effects of surgical uterine scarring on placental implantation and myometrial integrity.
Main Methods:
- Surgical induction of uterine scarring via hysterotomy (cesarean simulation) or endometrial curettage in mice.
- Assessment of trophoblast invasion depth and myometrial disruption using histological and immunohistochemical analyses.
- Comparison between scarred mice (CD-1 and Il10-/-) and sham-operated controls.
Main Results:
- Surgically induced uterine scars led to deeper trophoblast invasion compared to controls.
- Significant disruption of the myometrium was observed in scarred mice.
- Il10-/- mice exhibited more severe PAS-like pathology.
Conclusions:
- Surgical uterine scarring in mice provides a promising preclinical model for Placenta Accreta Spectrum (PAS) research.
- This model allows for the investigation of PAS pathophysiology and potential therapeutic strategies.
