| Size and spatial orientation of uterine tissue transplants on the peritoneum crucially determine the growth and cyst formation of endometriosis-like lesions in mice. | |
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MedLine Citation:
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PMID: 20693239 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: In many studies in rodents, intraperitoneal endometriosis-like lesions are surgically induced by syngeneic or autologous transplantation of uterine tissue samples, which are sutured to the abdominal wall. However, until now the surgical techniques have not been standardized, and we address this issue here. METHODS: Uterine tissue samples were transplanted to the peritoneum of C57BL/6 mice (four study groups, n = 7 each). Using non-invasive high-resolution ultrasound imaging over a period of 4 weeks, we analyzed growth characteristics and cyst formation of the endometriosis-like lesions which developed, in relation to mode of transplantation (syngeneic versus autologous), type of tissue fixed adjacent to the peritoneum (endometrium versus perimetrium), and size of tissue transplanted (2 versus 3 mm). Immunohistochemical analysis was also performed. RESULTS: When the perimetrium, with underlying myometrium, was sutured next to the host peritoneum the endometriosis-like lesions which developed exhibited a higher growth rate (P< 0.05 versus endometrium), and contained more proliferating cell nuclear antigen (PCNA)-positive cells and an increased microvessel density (both P< 0.05 versus endometrium). In the group with 3 mm uterine tissue grafts, lesion growth was significantly decreased when compared with 2 mm samples (P< 0.05). However, the larger grafts developed more cysts throughout the observation period than the smaller ones. There was no difference between syngeneic and autologous endometriosis-like lesions. CONCLUSIONS: Our study demonstrates that size and spatial orientation of peritoneally fixed uterine tissue samples crucially determine growth and cyst formation of endometriotic lesions in mice. These findings should improve the standardization and reliability of future studies, performed in the frequently used mouse model of surgically induced endometriosis. |
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Authors:
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Christina Körbel; Michael D Menger; Matthias W Laschke |
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Publication Detail:
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Type: Journal Article Date: 2010-08-06 |
Journal Detail:
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Title: Human reproduction (Oxford, England) Volume: 25 ISSN: 1460-2350 ISO Abbreviation: Hum. Reprod. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-16 Completed Date: 2011-01-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8701199 Medline TA: Hum Reprod Country: England |
Other Details:
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Languages: eng Pagination: 2551-8 Citation Subset: IM |
Affiliation:
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Institute for Clinical & Experimental Surgery, University of Saarland, 66421 Homburg/Saar, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cysts / surgery*, ultrasonography Disease Models, Animal Endometriosis / surgery*, ultrasonography Female Mice Mice, Inbred C57BL Microvessels / growth & development, ultrasonography Peritoneum / surgery*, ultrasonography Proliferating Cell Nuclear Antigen / analysis Uterus / transplantation* |
| Chemical | |
Reg. No./Substance:
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0/Proliferating Cell Nuclear Antigen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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