Endometriosis: a dysfunction and disease of the archimetra

G Leyendecker, G Kunz, M Noe, M Herbertz, G Mall
Human reproduction update · 1998 · vol. 4(5) , pp. 752–762 · doi:10.1093/humupd/4.5.752 · PMID:10027630 · W2142441134
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Endometriosis is a disease of the archimetra characterized by hyperactivation of its functions, potentially initiated by local extraovarian estrogen production or inflammatory/oxytocin system hyperactivity, leading to hyperproliferation and infertility.

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Abstract

Endometriosis is considered primarily a disease of the endometrial-subendometrial unit or archimetra. The clinical picture of endometriosis characterises this disease as a hyperactivation of genuine archimetrial functions such as proliferation, inflammatory defence and peristalsis. While the aetiology of the disease remains to be elucidated, a key event appears to consist in the local production of extraovarian oestrogen by a pathological expression of the P450 aromatase. The starting event may consist in a hyperactivity of the endometrial inflammatory defence, a hyperactivity of the endometrial oxytocin/oxytocin receptor system or in the pathological expression of the P450 aromatase system itself. Regardless of which of these levels the starting event is localized in, they influence each other on both the level of the archimetra and the endometriotic lesions. Locally elevated oestrogen levels inevitably up-regulate the endometrial oxytocin mRNA and increased levels of oxytocin result in uterine hyperperistalsis, increased transtubal seeding of endometrial tissue fragments and finally subfertility and infertility by impairment of the uterine mechanism of rapid and sustained sperm transport. Locally increased levels of oestrogen lead, on both the level of the endometrial-subendometrial unit and the endometriotic lesion, to processes of hyperproliferation. These processes result, on the level of the uterus, in an infiltrative growth of elements of the archimetra into the neometra and, on the level of the endometriotic lesion, in infiltrative endometriosis. There is circumstantial evidence that trauma might be an important initial event that induces the specific biochemical and cellular responses of the archimetra. This model is able to explain both the pleiomorphic appearance of endometriosis and the, up until now, enigmatic infertility associated with mild and moderate endometriosis.

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Condition tags

mesh:D004715endometriosisinfertility

MeSH descriptors

Endometriosis Endometrium Aromatase Aromatase Endometriosis Endometrium Endometrium Estrogens Estrogens Female Gene Expression Regulation Humans Infertility, Female Infertility, Female Infertility, Female Models, Biological Oxytocin Oxytocin RNA, Messenger RNA, Messenger

Citation neighborhood

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References (88)

Cited by (50)

Source provenance

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