Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis
<p>Abstract</p> <p>Background</p> <p>The resistance of endometriotic tissue to progesterone can be explained by alterations in the distribution of progesterone receptor (PR) and estrogen receptor (ER) isoforms. The aims of this study were to examine the expressions of P...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2012-11-01
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| Series: | Journal of Ovarian Research |
| Subjects: | |
| Online Access: | http://www.ovarianresearch.com/content/5/1/31 |
| _version_ | 1797970047464898560 |
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| author | Hayashi Atsushi Tanabe Akiko Kawabe Sachiko Hayashi Mika Yuguchi Hiroko Yamashita Yoshiki Okuda Kiyoji Ohmichi Masahide |
| author_facet | Hayashi Atsushi Tanabe Akiko Kawabe Sachiko Hayashi Mika Yuguchi Hiroko Yamashita Yoshiki Okuda Kiyoji Ohmichi Masahide |
| author_sort | Hayashi Atsushi |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>The resistance of endometriotic tissue to progesterone can be explained by alterations in the distribution of progesterone receptor (PR) and estrogen receptor (ER) isoforms. The aims of this study were to examine the expressions of PR-A, PR-B, ERα and ERβ in endometrioma and assess whether these expressions are affected by dienogest or leuprolide acetate (LA) treatment.</p> <p>Methods</p> <p>We enrolled 60 females, including 43 patients with endometriosis (14 who received no medical treatment, 13 who received dienogest and 16 who received LA before undergoing laparoscopic surgery) and 17 patients with leiomyoma. The expression levels of PR and ER isoforms in eutopic and ectopic endometrium were assayed with quantitative real-time PCR, and confirmed with immunohistochemistry.</p> <p>Results</p> <p>A decreased PR-B/PR-A ratio and an increased ERβ/ERα ratio were demonstrated in ectopic endometrium derived from females with endometriosis compared with the ratios observed in eutopic endometrium obtained from females without endometriosis. Although LA treatment did not affect the PR-B/PR-A and ERβ/ERα ratios, dienogest treatment increased the PR-B/PR-A ratio and decreased the ERβ/ERα ratio in patients with endometriomas.</p> <p>Conclusions</p> <p>Dienogest may improve progesterone resistance in endometriotic tissue by increasing the relative expressions of PR-B and PR-A, and decreasing the relative expressions of ERβ and ERα.</p> |
| first_indexed | 2024-04-11T03:11:56Z |
| format | Article |
| id | doaj.art-a3f7f2a422ee43b1908da24286712c50 |
| institution | Directory Open Access Journal |
| issn | 1757-2215 |
| language | English |
| last_indexed | 2024-04-11T03:11:56Z |
| publishDate | 2012-11-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Ovarian Research |
| spelling | doaj.art-a3f7f2a422ee43b1908da24286712c502023-01-02T11:37:55ZengBMCJournal of Ovarian Research1757-22152012-11-01513110.1186/1757-2215-5-31Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosisHayashi AtsushiTanabe AkikoKawabe SachikoHayashi MikaYuguchi HirokoYamashita YoshikiOkuda KiyojiOhmichi Masahide<p>Abstract</p> <p>Background</p> <p>The resistance of endometriotic tissue to progesterone can be explained by alterations in the distribution of progesterone receptor (PR) and estrogen receptor (ER) isoforms. The aims of this study were to examine the expressions of PR-A, PR-B, ERα and ERβ in endometrioma and assess whether these expressions are affected by dienogest or leuprolide acetate (LA) treatment.</p> <p>Methods</p> <p>We enrolled 60 females, including 43 patients with endometriosis (14 who received no medical treatment, 13 who received dienogest and 16 who received LA before undergoing laparoscopic surgery) and 17 patients with leiomyoma. The expression levels of PR and ER isoforms in eutopic and ectopic endometrium were assayed with quantitative real-time PCR, and confirmed with immunohistochemistry.</p> <p>Results</p> <p>A decreased PR-B/PR-A ratio and an increased ERβ/ERα ratio were demonstrated in ectopic endometrium derived from females with endometriosis compared with the ratios observed in eutopic endometrium obtained from females without endometriosis. Although LA treatment did not affect the PR-B/PR-A and ERβ/ERα ratios, dienogest treatment increased the PR-B/PR-A ratio and decreased the ERβ/ERα ratio in patients with endometriomas.</p> <p>Conclusions</p> <p>Dienogest may improve progesterone resistance in endometriotic tissue by increasing the relative expressions of PR-B and PR-A, and decreasing the relative expressions of ERβ and ERα.</p>http://www.ovarianresearch.com/content/5/1/31DienogestProgesterone receptor isoformsEstrogen receptor isoformsOvarian endometriosisProgesterone resistance |
| spellingShingle | Hayashi Atsushi Tanabe Akiko Kawabe Sachiko Hayashi Mika Yuguchi Hiroko Yamashita Yoshiki Okuda Kiyoji Ohmichi Masahide Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis Journal of Ovarian Research Dienogest Progesterone receptor isoforms Estrogen receptor isoforms Ovarian endometriosis Progesterone resistance |
| title | Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis |
| title_full | Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis |
| title_fullStr | Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis |
| title_full_unstemmed | Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis |
| title_short | Dienogest increases the progesterone receptor isoform B/A ratio in patients with ovarian endometriosis |
| title_sort | dienogest increases the progesterone receptor isoform b a ratio in patients with ovarian endometriosis |
| topic | Dienogest Progesterone receptor isoforms Estrogen receptor isoforms Ovarian endometriosis Progesterone resistance |
| url | http://www.ovarianresearch.com/content/5/1/31 |
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