Loss of menin in osteoblast lineage affects osteocyte-osteoclast crosstalk causing osteoporosis
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Loss of menin in osteoblast lineage affects osteocyte-osteoclast crosstalk causing osteoporosis. / Liu, Peng; Lee, Sooyeon; Knoll, Jeanette; Rauch, Alexander; Ostermay, Susanne; Luther, Julia; Malkusch, Nicole; Lerner, Ulf H; Zaiss, Mario M; Neven, Mona; Wittig, Rainer; Rauner, Martina; David, Jean-Pierre; Bertolino, Philippe; Zhang, Chang X; Tuckermann, Jan P.
in: CELL DEATH DIFFER, Jahrgang 24, Nr. 4, 04.2017, S. 672-682.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Loss of menin in osteoblast lineage affects osteocyte-osteoclast crosstalk causing osteoporosis
AU - Liu, Peng
AU - Lee, Sooyeon
AU - Knoll, Jeanette
AU - Rauch, Alexander
AU - Ostermay, Susanne
AU - Luther, Julia
AU - Malkusch, Nicole
AU - Lerner, Ulf H
AU - Zaiss, Mario M
AU - Neven, Mona
AU - Wittig, Rainer
AU - Rauner, Martina
AU - David, Jean-Pierre
AU - Bertolino, Philippe
AU - Zhang, Chang X
AU - Tuckermann, Jan P
PY - 2017/4
Y1 - 2017/4
N2 - During osteoporosis bone formation by osteoblasts is reduced and/or bone resorption by osteoclasts is enhanced. Currently, only a few factors have been identified in the regulation of bone integrity by osteoblast-derived osteocytes. In this study, we show that specific disruption of menin, encoded by multiple endocrine neoplasia type 1 (Men1), in osteoblasts and osteocytes caused osteoporosis despite the preservation of osteoblast differentiation and the bone formation rate. Instead, an increase in osteoclast numbers and bone resorption was detected that persisted even when the deletion of Men1 was restricted to osteocytes. We demonstrate that isolated Men1-deficient osteocytes expressed numerous soluble mediators, such as C-X-C motif chemokine 10 (CXCL10), and that CXCL10-mediated osteoclastogenesis was reduced by CXCL10-neutralizing antibodies. Collectively, our data reveal a novel role for Men1 in osteocyte-osteoclast crosstalk by controlling osteoclastogenesis through the action of soluble factors. A role for Men1 in maintaining bone integrity and thereby preventing osteoporosis is proposed.
AB - During osteoporosis bone formation by osteoblasts is reduced and/or bone resorption by osteoclasts is enhanced. Currently, only a few factors have been identified in the regulation of bone integrity by osteoblast-derived osteocytes. In this study, we show that specific disruption of menin, encoded by multiple endocrine neoplasia type 1 (Men1), in osteoblasts and osteocytes caused osteoporosis despite the preservation of osteoblast differentiation and the bone formation rate. Instead, an increase in osteoclast numbers and bone resorption was detected that persisted even when the deletion of Men1 was restricted to osteocytes. We demonstrate that isolated Men1-deficient osteocytes expressed numerous soluble mediators, such as C-X-C motif chemokine 10 (CXCL10), and that CXCL10-mediated osteoclastogenesis was reduced by CXCL10-neutralizing antibodies. Collectively, our data reveal a novel role for Men1 in osteocyte-osteoclast crosstalk by controlling osteoclastogenesis through the action of soluble factors. A role for Men1 in maintaining bone integrity and thereby preventing osteoporosis is proposed.
KW - Journal Article
U2 - 10.1038/cdd.2016.165
DO - 10.1038/cdd.2016.165
M3 - SCORING: Journal article
C2 - 28106886
VL - 24
SP - 672
EP - 682
JO - CELL DEATH DIFFER
JF - CELL DEATH DIFFER
SN - 1350-9047
IS - 4
ER -