Regulation of expression of the retinoic acid-synthesising enzymes retinaldehyde dehydrogenases in the uteri of ovariectomised mice after treatment with oestrogen, gestagen and their combination
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Regulation of expression of the retinoic acid-synthesising enzymes retinaldehyde dehydrogenases in the uteri of ovariectomised mice after treatment with oestrogen, gestagen and their combination. / Rühl, Ralph; Fritzsche, Britta; Vermot, Julien; Niederreither, Karen; Neumann, Ulrike; Schmidt, Anja; Schweigert, Florian J; Dollé, Pascal.
in: REPROD FERT DEVELOP, Jahrgang 18, Nr. 3, 2006, S. 339-45.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung
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TY - JOUR
T1 - Regulation of expression of the retinoic acid-synthesising enzymes retinaldehyde dehydrogenases in the uteri of ovariectomised mice after treatment with oestrogen, gestagen and their combination
AU - Rühl, Ralph
AU - Fritzsche, Britta
AU - Vermot, Julien
AU - Niederreither, Karen
AU - Neumann, Ulrike
AU - Schmidt, Anja
AU - Schweigert, Florian J
AU - Dollé, Pascal
PY - 2006
Y1 - 2006
N2 - The active metabolite of vitamin A, retinoic acid (RA), plays an important role in the female reproductive system. The synthesis of RA is tightly regulated by the activity of retinaldehyde dehydrogenases (Raldh). Among these, Raldh1 and Raldh2 exhibit specific temporal and spatial expression patterns in the mouse uterus, both during the oestrous cycle and early pregnancy. In the present study, we have assessed whether oestradiol and progesterone directly influence the uterine expression of Raldh1 and Raldh2 in ovariectomised mice. We investigated the effect of gestagen (promegestone 0.3 mg kg(-1) bodyweight), oestrogen (oestradiol 3 microg kg(-1) bodyweight) and their combination on the uterine expression of Raldh2. Expression was analysed using in situ hybridisation and quantified using real-time detection reverse transcription-polymerase chain reaction. The results show that the expression of Raldh2 is rapidly (within 1-4 h) induced in stromal cells by oestrogen, but not by gestagen, treatment, whereas combined oestrogen + gestagen treatment leads to a more prolonged (48 h) response. In contrast, oestrogen, but not progesterone, treatment downregulates (within 4-24 h) Raldh1 expression in the uterine glandular epithelium. We conclude that the uterine RA concentrations are regulated by oestrogens via an effect on the expression of the Raldh synthesising enzymes. Such a regulation is consistent with the natural fluctuations of Raldh expression during the oestrous cycle, early pregnancy and blastocyst implantation.
AB - The active metabolite of vitamin A, retinoic acid (RA), plays an important role in the female reproductive system. The synthesis of RA is tightly regulated by the activity of retinaldehyde dehydrogenases (Raldh). Among these, Raldh1 and Raldh2 exhibit specific temporal and spatial expression patterns in the mouse uterus, both during the oestrous cycle and early pregnancy. In the present study, we have assessed whether oestradiol and progesterone directly influence the uterine expression of Raldh1 and Raldh2 in ovariectomised mice. We investigated the effect of gestagen (promegestone 0.3 mg kg(-1) bodyweight), oestrogen (oestradiol 3 microg kg(-1) bodyweight) and their combination on the uterine expression of Raldh2. Expression was analysed using in situ hybridisation and quantified using real-time detection reverse transcription-polymerase chain reaction. The results show that the expression of Raldh2 is rapidly (within 1-4 h) induced in stromal cells by oestrogen, but not by gestagen, treatment, whereas combined oestrogen + gestagen treatment leads to a more prolonged (48 h) response. In contrast, oestrogen, but not progesterone, treatment downregulates (within 4-24 h) Raldh1 expression in the uterine glandular epithelium. We conclude that the uterine RA concentrations are regulated by oestrogens via an effect on the expression of the Raldh synthesising enzymes. Such a regulation is consistent with the natural fluctuations of Raldh expression during the oestrous cycle, early pregnancy and blastocyst implantation.
KW - Aldehyde Oxidoreductases
KW - Animals
KW - Drug Interactions
KW - Estradiol
KW - Female
KW - Gene Expression
KW - In Situ Hybridization
KW - Isoenzymes
KW - Mice
KW - Ovariectomy
KW - Progesterone
KW - RNA, Messenger
KW - Retinal Dehydrogenase
KW - Reverse Transcriptase Polymerase Chain Reaction
KW - Uterus
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
M3 - SCORING: Journal article
C2 - 16554009
VL - 18
SP - 339
EP - 345
JO - REPROD FERT DEVELOP
JF - REPROD FERT DEVELOP
SN - 1031-3613
IS - 3
ER -