Expression of messenger ribonucleic acid for gonadal steroid receptors in the human pelvic peritoneum

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This study investigated the presence and localization of messenger RNA for estrogen and progesterone receptors within the human pelvic peritoneum.

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Abstract

OBJECTIVE: To investigate the expression of messenger RNA (mRNA) for gonadal steroid hormone receptors in the human pelvic peritoneum. DESIGN: Analysis of estrogen receptor (ER), progesterone receptor (PR), and androgen receptor (AR) mRNA expressions in the pelvic peritoneum was carried out using the quantitative reverse transcription-polymerase chain reaction (PCR) method. SETTING: Department of Gynecology and Obstetrics, Kyoto University Hospital, Kyoto, Japan. PATIENTS: Pelvic peritoneal tissues from patients with (n = 10) and without (n = 10) endometriosis who had undergone gynecological surgery were studied. RESULTS: Estrogen receptor, PR, and AR mRNAs were detected in all pelvic peritoneal samples analyzed. In the pelvic peritoneum of patients without endometriosis, ER mRNA levels were significantly lower in the luteal phase than in the follicular phase. This cyclic profile of ER mRNA expression was not observed in the pelvic peritoneum of patients with endometriosis. During the follicular phase, ER mRNA levels in the pelvic peritoneum of patients with endometriosis were significantly lower than those of patients with endometriosis. Neither PR nor AR mRNA levels in the pelvic peritoneum of either patient group showed significant cyclic variations throughout the menstrual cycle. A comparison of PR and AR mRNA levels in the pelvic peritoneum of the endometriosis and the nonendometriosis groups revealed no significant differences. CONCLUSIONS: These data indicate a decrease in ER gene expression in the pelvic peritoneum of patients with endometriosis during the follicular phase. This suggests that the possible responsiveness of peritoneal cells to estrogen may be related to the occurrence and/or development of endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Peritoneum Receptors, Androgen Receptors, Estrogen Receptors, Progesterone RNA, Messenger Adult Adult Base Sequence Base Sequence Endometriosis Endometriosis Endometriosis Female Female Humans Humans Menstrual Cycle Menstrual Cycle Middle Aged Middle Aged

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References (28)

Cited by (4)

SciLite annotations

organisms 2
human human
chemicals 1
estrogen

Source provenance

europepmc
last seen: 2026-10-17T06:09:56.316927+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T21:59:01.426159+00:00
scilite
last seen: 2026-05-18T04:57:49.680383+00:00
unpaywall
last seen: 2026-09-17T06:32:46.214484+00:00
License: CC0 · commercial use OK