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Sökning: WFRF:(Gustafsson Claes) > (2020-2024) > Estrogen receptor a...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004463naa a2200685 4500
001oai:gup.ub.gu.se/292181
003SwePub
008240528s2020 | |||||||||||000 ||eng|
024a https://gup.ub.gu.se/publication/2921812 URI
024a https://doi.org/10.1096/fj.202000272R2 DOI
040 a (SwePub)gu
041 a eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Kim, N. R.4 aut
2451 0a Estrogen receptor alpha signaling in extrahypothalamic neurons during late puberty decreases bone size and strength in female but not in male mice
264 1c 2020
520 a Sexually dimorphic bone structure emerges largely during puberty. Sex steroids are critical for peak bone mass acquisition in both genders. In particular, the biphasic effects of estrogens mediate the skeletal sexual dimorphism. However, so far the stimulatory vs inhibitory actions of estrogens on bone mass are not fully explained by direct effects on bone cells. Recently, it has become evident that there is possible neuroendocrine action of estrogen receptor alpha (ER alpha) on the skeleton. Based on these considerations, we hypothesized that neuronal ER alpha-signaling may contribute to the skeletal growth during puberty. Here, we generated mice with tamoxifen-inducible Thy1-Cre mediated ER alpha inactivation during late puberty specifically in extrahypothalamic neurons (N-ER alpha KO). Inactivation of neuronal ER alpha did not alter the body weight in males, whereas N-ER alpha KO females exhibited a higher body weight and increased body and bone length compared to their control littermates at 16 weeks of age. Ex vivo microCT analysis showed increased radial bone expansion of the midshaft femur in female N-ER alpha KO along with higher serum levels of insulin-like growth factor (IGF)-1 as well as IGF-binding protein (IGFBP)-3. Furthermore, the 3-point bending test revealed increased bone strength in female N-ER alpha KO. In contrast, inactivation of neuronal ER alpha had no major effect on bone growth in males. In conclusion, we demonstrate that central ER alpha-signaling limits longitudinal bone growth and radial bone expansion specifically in females potentially by interacting with the GH/IGF-1 axis.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Cell- och molekylärbiologi0 (SwePub)301082 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Cell and Molecular Biology0 (SwePub)301082 hsv//eng
653 a GH
653 a IGF-1
653 a neuroendocrine bone axis
653 a puberty
653 a sex steroids
653 a skeletal
653 a sexual dimorphism
653 a growth-hormone-secretion
653 a sexual-dimorphism
653 a er-alpha
653 a androgens
653 a gene
653 a beta
653 a hypothalamus
653 a inactivation
653 a innervation
653 a deficiency
653 a Biochemistry & Molecular Biology
653 a Life Sciences & Biomedicine - Other
653 a Topics
653 a Cell Biology
700a Jardi, F.4 aut
700a Khalil, R.4 aut
700a Antonio, L.4 aut
700a Schollaert, D.4 aut
700a Deboel, L.4 aut
700a van Lenthe, G. H.4 aut
700a Decallonne, B.4 aut
700a Carmeliet, G.4 aut
700a Gustafsson, J. A.4 aut
700a Claessens, F.4 aut
700a Ohlsson, Claes,d 1965u Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition4 aut0 (Swepub:gu)xohlcl
700a Lagerquist, Marieu Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition4 aut0 (Swepub:gu)xlmarv
700a Dubois, V.4 aut
700a Vanderschueren, D.4 aut
710a Göteborgs universitetb Centre for Bone and Arthritis Research4 org
773t Faseb Journalg 34:5, s. 7118-7126q 34:5<7118-7126x 0892-6638
8564 8u https://gup.ub.gu.se/publication/292181
8564 8u https://doi.org/10.1096/fj.202000272R

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