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Updated: May 30, 2026

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Noninvasive Monitoring of Lesion Size in a Heterologous Mouse Model of Endometriosis
Published on: February 26, 2019
Cellular exchange in an endometriosis-adhesion model using GFP transgenic mice
S Wilkosz1, N Pullen, A de-Giorgio-Miller
1Faculty of Life Sciences, The University of Manchester, Manchester, UK.
Gynecologic and Obstetric Investigation
|July 23, 2011
Summary
This study shows that endometriosis lesions involve cellular exchange between the host and ectopic tissue. This mouse model is suitable for studying these interactions in endometriosis research.
Area of Science:
- Reproductive biology
- Cell biology
- Gynecology
Background:
- Endometriosis is a common condition affecting women of reproductive age.
- It can lead to infertility and significant pain.
- The interaction between endometrial tissue and the host peritoneum is not fully understood.
Purpose of the Study:
- To investigate cellular exchange between host peritoneum and ectopic endometrial tissue.
- To assess the hormonal sensitivity of experimental endometriosis lesions.
- To validate a novel mouse model for endometriosis research.
Main Methods:
- An experimental endometriosis model was created using wild-type and eGFP-expressing mice.
- Uterine horn fragments were transplanted between genetically identical mice.
- Lesion development, vascularization, and cellular exchange were analyzed histologically.
Main Results:
- Ectopic lesions formed and showed glandular and luminal epithelium.
- Ovariectomy and GnRH agonist treatment suppressed lesion growth; estradiol increased it.
- Evidence of blood vessel ingrowth/outgrowth and host-lesion cellular exchange was observed.
Conclusions:
- There is significant cellular interplay between the host peritoneum and ectopic endometrial tissue.
- The developed mouse model effectively mimics key aspects of endometriosis.
- This model is suitable for further investigation of endometriosis pathogenesis and interactions.

