Expression of aminopeptidase N and neutral endopeptidase on the endometrial stromal cells in endometriosis and adenomyosis

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AI-generated summary by claude@2026-06, 2026-06-08

Endometrial stromal cells in endometriosis and adenomyosis express aminopeptidase N (CD13) and neutral endopeptidase (CD10), similar to normal endometrial stromal cells, suggesting their utility as diagnostic markers.

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Abstract

Indirect immunofluorescence staining revealed that endometrial stromal cells (ESC) in the ectopic endometrium of patients with endometriosis or adenomyosis expressed aminopeptidase N/cluster of differentiation (CD) 13 antigen and neutral endopeptidase/CD10 antigen, both of which are expressed on ESC in the normal endometrium throughout the menstrual cycle. Thus, ESC in the ectopic endometrium resembled ESC in the normal endometrium not only morphologically but also antigenically. Both peptidase antigens may be useful markers for the histological diagnosis of endometriosis and adenomyosis.

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Condition tags

endometriosisadenomyosis

MeSH descriptors

Aminopeptidases Endometriosis Endometrium Neprilysin Ovarian Neoplasms Peritoneal Neoplasms Adult Aminopeptidases Antigens, CD Antigens, CD Antigens, Differentiation, Myelomonocytic Antigens, Differentiation, Myelomonocytic Biomarkers, Tumor Biomarkers, Tumor CD13 Antigens Endometriosis Endometrium Female Fluorescent Antibody Technique Humans

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Source provenance

europepmc
last seen: 2026-06-11T06:19:48.454388+00:00
pubmed
last seen: 2026-05-13T22:11:44.647872+00:00
unpaywall
last seen: 2026-05-14T19:30:52.867331+00:00
License: public-domain-us · commercial use OK · attribution required
Courtesy of the U.S. National Library of Medicine