Procalcitonin is expressed in osteoblasts and limits bone resorption through inhibition of macrophage migration during intermittent PTH treatment
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Procalcitonin is expressed in osteoblasts and limits bone resorption through inhibition of macrophage migration during intermittent PTH treatment. / Baranowsky, Anke; Jahn, Denise; Jiang, Shan; Yorgan, Timur; Ludewig, Peter; Appelt, Jessika; Albrecht, Kai K; Otto, Ellen; Knapstein, Paul; Donat, Antonia; Winneberger, Jack; Rosenthal, Lana; Köhli, Paul; Erdmann, Cordula; Fuchs, Melanie; Frosch, Karl-Heinz; Tsitsilonis, Serafeim; Amling, Michael; Schinke, Thorsten; Keller, Johannes.
in: BONE RES, Jahrgang 10, Nr. 1, 9, 27.01.2022.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Procalcitonin is expressed in osteoblasts and limits bone resorption through inhibition of macrophage migration during intermittent PTH treatment
AU - Baranowsky, Anke
AU - Jahn, Denise
AU - Jiang, Shan
AU - Yorgan, Timur
AU - Ludewig, Peter
AU - Appelt, Jessika
AU - Albrecht, Kai K
AU - Otto, Ellen
AU - Knapstein, Paul
AU - Donat, Antonia
AU - Winneberger, Jack
AU - Rosenthal, Lana
AU - Köhli, Paul
AU - Erdmann, Cordula
AU - Fuchs, Melanie
AU - Frosch, Karl-Heinz
AU - Tsitsilonis, Serafeim
AU - Amling, Michael
AU - Schinke, Thorsten
AU - Keller, Johannes
N1 - © 2022. The Author(s).
PY - 2022/1/27
Y1 - 2022/1/27
N2 - Intermittent injections of parathyroid hormone (iPTH) are applied clinically to stimulate bone formation by osteoblasts, although continuous elevation of parathyroid hormone (PTH) primarily results in increased bone resorption. Here, we identified Calca, encoding the sepsis biomarker procalcitonin (ProCT), as a novel target gene of PTH in murine osteoblasts that inhibits osteoclast formation. During iPTH treatment, mice lacking ProCT develop increased bone resorption with excessive osteoclast formation in both the long bones and axial skeleton. Mechanistically, ProCT inhibits the expression of key mediators involved in the recruitment of macrophages, representing osteoclast precursors. Accordingly, ProCT arrests macrophage migration and causes inhibition of early but not late osteoclastogenesis. In conclusion, our results reveal a potential role of osteoblast-derived ProCT in the bone microenvironment that is required to limit bone resorption during iPTH.
AB - Intermittent injections of parathyroid hormone (iPTH) are applied clinically to stimulate bone formation by osteoblasts, although continuous elevation of parathyroid hormone (PTH) primarily results in increased bone resorption. Here, we identified Calca, encoding the sepsis biomarker procalcitonin (ProCT), as a novel target gene of PTH in murine osteoblasts that inhibits osteoclast formation. During iPTH treatment, mice lacking ProCT develop increased bone resorption with excessive osteoclast formation in both the long bones and axial skeleton. Mechanistically, ProCT inhibits the expression of key mediators involved in the recruitment of macrophages, representing osteoclast precursors. Accordingly, ProCT arrests macrophage migration and causes inhibition of early but not late osteoclastogenesis. In conclusion, our results reveal a potential role of osteoblast-derived ProCT in the bone microenvironment that is required to limit bone resorption during iPTH.
U2 - 10.1038/s41413-021-00172-y
DO - 10.1038/s41413-021-00172-y
M3 - SCORING: Journal article
C2 - 35087025
VL - 10
JO - BONE RES
JF - BONE RES
SN - 2095-4700
IS - 1
M1 - 9
ER -