Cited by 300Endometriosis Research and TreatmentGynecological conditions and treatmentsMenstrual Health and Disorders

Endometriosis results from the dislocation of basal endometrium

Leyendecker, G.·2002·Human Reproduction

Abstract

BACKGROUND: The hypothesis is tested that both adenomyotic and endometriotic lesions are derived from basal endometrium. METHODS: Normal uteri and uteri with adenomyosis obtained by hysterectomy, excised endometriotic lesions and menstrual blood of women with and without endometriosis were used. Estrogen receptor (ER), progesterone receptor (PR), progesterone receptor B isoform (PR(B)) and P450 aromatase (P450A) immunohistochemistry was performed with the use of specific monoclonal antibodies. RESULTS: With respect to the parameters studied there was a fundamental difference between the cyclical patterns of the basalis and the functionalis of the eutopic endometrium. The endometrium of endometriotic and adenomyotic lesions mimicked the cyclical pattern of the basalis. The peristromal muscular tissue of endometriotic and adenomyotic lesions displayed the same cyclical pattern of ER and PR expression as the archimyometrium. There was a significantly higher prevalence of fragments of shed basalis in menstrual blood of women with endometriosis than in healthy controls. CONCLUSIONS: These data suggest that ectopic endometrial lesions result from dislocation of basal endometrium. Dislocated basal endometrium has stem cell character resulting in the ectopic formation of all archimetrial components such as epithelial and stromal endometrium as well as peristromal muscular tissue.

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Crossref · 10.1093/humrep/17.10.2725

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Authors
Leyendecker, G.
Affiliations
Klinikum Darmstadt (DE)
Corresponding author
Leyendecker, G.
Venue
Human Reproduction
Published
2002-10-01
Volume
17
Issue
10
Pages
2725-2736
ISSN
  • 0268-1161 (ISSN-L)
  • 1460-2350
OpenAlex
W2157162135
Cited by
300
References
56
Citations by year
2026: 12 · 2025: 8 · 2024: 10 · 2023: 8 · 2022: 20 · 2021: 20 · 2020: 10 · 2019: 11 · 2018: 16 · 2017: 17 · 2016: 9 · 2015: 17 · 2014: 12 · 2013: 10 · 2012: 7
FWCI
10.08
Type
journal article
Language
en
Open access
closed
Locations
  • Human Reproduction (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gynecological conditions and treatments
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Menstrual Health and Disorders
Keywords
endometriosis, adenomyosis, ectopic endometrial lesions, endometrial stem cells, estrogen receptor, progesterone receptor, aromatase, menstrual blood, eutopic endometrium
MeSH terms
Adult, Antibodies, Monoclonal, Aromatase, Endometriosis, Endometrium, Epithelium, Female, Humans, Hysterectomy, Immunohistochemistry, Menstrual Cycle, Menstruation, Middle Aged, Muscle, Smooth, Receptors, Estrogen, Receptors, Progesterone

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