Résumés
Résumé
Durant la grossesse, les stéroïdes sexuels pourraient potentiellement nuire au développement foetal. Deux mécanismes distincts au moins, faisant intervenir la 17β-hydroxystéroïde déshydrogénase-2 (17β-HSD2), permettraient d’empêcher ces actions indésirables. En s’exprimant dans les fibroblastes pulmonaires et les cellules endothéliales placentaires, la 17β-HSD2 limiterait respectivement l’action de la testostérone et de l’oestradiol, permettant ainsi un développement normal.
Summary
During gestation, sex steroids could potentially have detrimental effects on fetal development. At least two distinct mechanisms should prevent such effects. The 17β-hydroxysteroid dehydrogenase-2 (HSD17β2) plays a key role in each mechanism. Being expressed both in lung fibroblasts and placental endothelial cells, the HSD17β2 should restrict testosterone and estradiol actions, thus enabling normal development.
Parties annexes
Références
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