Abstract |
Ovarian endometrioma (OMA) and deep infiltrating endometriosis (DIE) are the most severe forms of endometriosis, but different pathogenetic mechanisms and clinical symptoms distinguish these two forms. Corticotrophin-releasing hormone (CRH) and urocortin (Ucn) are endometrial neuropeptides involved in tissue differentiation and inflammation. The expression of CRH, Ucn, Ucn2, CRH-receptors (type-1 and type-2) and inflammatory enzymes phospholipase-A2 group IIA (PLA2G2A) and cycloxygenase-2 (COX2) were evaluated in OMA (n = 22) and DIE (n = 26). The effect of CRH or Ucn on COX2 mRNA expression was evaluated in cultured human endometrial stromal cells. In DIE lesions, CRH, Ucn and CRH-R2 mRNA levels were significantly higher than in OMA (P < 0.01, P < 0.001 and P < 0.05, respectively); DIE lesions showed a higher expression of COX2 (P < 0.01) and PLA2G2A (P < 0.05) mRNA than OMA, which was positively correlated with CRH-R2 mRNA expression (P < 0.05). Intense immunostaining for CRH and Ucn was shown in DIE. Treatment of cultured endometrial stromal cells with Ucn significantly increased COX2 mRNA expression (P < 0.01); this effect was reversed by the CRH-R2 antagonist astressin-2B. In DIE, DIE lesions highly express neuropeptide and enzyme mRNAs, supporting a strong activation of inflammatory pathways.
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Authors | Patrizia Carrarelli, Alice Luddi, Lucia Funghi, Felice Arcuri, Frederic Batteux, Cynthia Dela Cruz, Claudia Tosti, Fernando M Reis, Charles Chapron, Felice Petraglia |
Journal | Reproductive biomedicine online
(Reprod Biomed Online)
Vol. 33
Issue 4
Pg. 476-483
(Oct 2016)
ISSN: 1472-6491 [Electronic] Netherlands |
PMID | 27567427
(Publication Type: Journal Article)
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Copyright | Copyright © 2016 Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved. |
Chemical References |
- CRF receptor type 2
- Peptide Fragments
- Peptides, Cyclic
- RNA, Messenger
- Receptors, Corticotropin-Releasing Hormone
- Urocortins
- astressin-2B
- astressin
- Corticotropin-Releasing Hormone
- Cyclooxygenase 2
- Group II Phospholipases A2
- PLA2G2A protein, human
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Topics |
- Adult
- Cells, Cultured
- Corticotropin-Releasing Hormone
(genetics, metabolism, pharmacology)
- Cyclooxygenase 2
(genetics, metabolism)
- Dose-Response Relationship, Drug
- Endometriosis
(genetics, metabolism, pathology)
- Endometrium
(drug effects, metabolism, pathology)
- Female
- Group II Phospholipases A2
(genetics, metabolism)
- Humans
- Ovarian Diseases
(genetics, metabolism, pathology)
- Peptide Fragments
(pharmacology)
- Peptides, Cyclic
(pharmacology)
- RNA, Messenger
(genetics, metabolism)
- Receptors, Corticotropin-Releasing Hormone
(genetics, metabolism)
- Stromal Cells
(drug effects, metabolism)
- Urocortins
(genetics, metabolism, pharmacology)
- Young Adult
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