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Lademann F, Rijntjes E, Köhrle J, Tsourdi E, Hofbauer LC, Rauner M. Hyperthyroidism-driven bone loss depends on BMP receptor Bmpr1a expression in osteoblasts. Commun Biol 2024; 7:548. [PMID: 38719881 PMCID: PMC11078941 DOI: 10.1038/s42003-024-06227-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024] Open
Abstract
Hyperthyroidism is a well-known trigger of high bone turnover that can lead to the development of secondary osteoporosis. Previously, we have shown that blocking bone morphogenetic protein (BMP) signaling systemically with BMPR1A-Fc can prevent bone loss in hyperthyroid mice. To distinguish between bone cell type-specific effects, conditional knockout mice lacking Bmpr1a in either osteoclast precursors (LysM-Cre) or osteoprogenitors (Osx-Cre) were rendered hyperthyroid and their bone microarchitecture, strength and turnover were analyzed. While hyperthyroidism in osteoclast precursor-specific Bmpr1a knockout mice accelerated bone resorption leading to bone loss just as in wildtype mice, osteoprogenitor-specific Bmpr1a deletion prevented an increase of bone resorption and thus osteoporosis with hyperthyroidism. In vitro, wildtype but not Bmpr1a-deficient osteoblasts responded to thyroid hormone (TH) treatment with increased differentiation and activity. Furthermore, we found an elevated Rankl/Opg ratio with TH excess in osteoblasts and bone tissue from wildtype mice, but not in Bmpr1a knockouts. In line, expression of osteoclast marker genes increased when osteoclasts were treated with supernatants from TH-stimulated wildtype osteoblasts, in contrast to Bmpr1a-deficient cells. In conclusion, we identified the osteoblastic BMP receptor BMPR1A as a main driver of osteoporosis in hyperthyroid mice promoting TH-induced osteoblast activity and potentially its coupling to high osteoclastic resorption.
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Affiliation(s)
- Franziska Lademann
- Department of Medicine III & Center for Healthy Aging, Medical Faculty and University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Eddy Rijntjes
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Institut für Experimentelle Endokrinologie, Berlin, Germany
| | - Josef Köhrle
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Institut für Experimentelle Endokrinologie, Berlin, Germany
| | - Elena Tsourdi
- Department of Medicine III & Center for Healthy Aging, Medical Faculty and University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Lorenz C Hofbauer
- Department of Medicine III & Center for Healthy Aging, Medical Faculty and University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Martina Rauner
- Department of Medicine III & Center for Healthy Aging, Medical Faculty and University Hospital Carl Gustav Carus, Dresden University of Technology, Dresden, Germany.
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Maity-Kumar G, Ständer L, DeAngelis M, Lee S, Molenaar A, Becker L, Garrett L, Amerie OV, Hoelter SM, Wurst W, Fuchs H, Feuchtinger A, Gailus-Durner V, Garcia-Caceres C, Othman AE, Brockmann C, Schöffling VI, Beiser K, Krude H, Mroz PA, Hofmann S, Tuckermann J, DiMarchi RD, Hrabe de Angelis M, Tschöp MH, Pfluger PT, Müller TD. Validation of Mct8/Oatp1c1 dKO mice as a model organism for the Allan-Herndon-Dudley Syndrome. Mol Metab 2022; 66:101616. [PMID: 36270613 PMCID: PMC9626936 DOI: 10.1016/j.molmet.2022.101616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE The Allan-Herndon-Dudley syndrome (AHDS) is a severe disease caused by dysfunctional central thyroid hormone transport due to functional loss of the monocarboxylate transporter 8 (MCT8). In this study, we assessed whether mice with concomitant deletion of the thyroid hormone transporters Mct8 and the organic anion transporting polypeptide (Oatp1c1) represent a valid preclinical model organism for the AHDS. METHODS We generated and metabolically characterized a new CRISPR/Cas9 generated Mct8/Oatp1c1 double-knockout (dKO) mouse line for the clinical features observed in patients with AHDS. RESULTS We show that Mct8/Oatp1c1 dKO mice mimic key hallmarks of the AHDS, including decreased life expectancy, central hypothyroidism, peripheral hyperthyroidism, impaired neuronal myelination, impaired motor abilities and enhanced peripheral thyroid hormone action in the liver, adipose tissue, skeletal muscle and bone. CONCLUSIONS We conclude that Mct8/Oatp1c1 dKO mice are a valuable model organism for the preclinical evaluation of drugs designed to treat the AHDS.
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Affiliation(s)
- Gandhari Maity-Kumar
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Division of Metabolic Diseases, Department of Medicine, Technische Universität München, München, Germany
| | - Lisa Ständer
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Meri DeAngelis
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Sooyeon Lee
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Anna Molenaar
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Research Unit NeuroBiology of Diabetes, Helmholtz München, Neuherberg, Germany
| | - Lore Becker
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Lillian Garrett
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany,Institute of Developmental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Oana V. Amerie
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Sabine M. Hoelter
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany,Institute of Developmental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Wolfgang Wurst
- Chair of Developmental Genetics, TUM School of Life Sciences, Technische Universität München, Freising-Weihenstephan, Germany,Deutsches Institut für Neurodegenerative Erkrankungen (DZNE) Site Munich, Feodor-Lynen-Str. 17, 81377 Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Adolf-Butenandt-Institut, Ludwig-Maximilians-Universität München, Feodor-Lynen-Str. 17, 81377 Munich, Germany
| | - Helmut Fuchs
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | - Valerie Gailus-Durner
- Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Cristina Garcia-Caceres
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Medizinische Klinik and Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ahmed E. Othman
- Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, 52074 Aachen, Germany
| | - Caroline Brockmann
- Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, 52074 Aachen, Germany
| | - Vanessa I. Schöffling
- Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, 52074 Aachen, Germany
| | - Katja Beiser
- Department of Diagnostic and Interventional Neuroradiology, RWTH Aachen University, 52074 Aachen, Germany
| | - Heiko Krude
- Institute of Experimental Pediatric Endocrinology, Charité - Universitätsmedizin Berlin, Germany
| | - Piotr A. Mroz
- Department of Chemistry, Indiana University, Bloomington, IN, USA
| | - Susanna Hofmann
- German Center for Diabetes Research (DZD), Neuherberg, Germany,Institute of Developmental Genetics, Helmholtz Zentrum München, Neuherberg, Germany,Institute of Diabetes and Regeneration Research, Helmholtz München, Neuherberg, Germany
| | - Jan Tuckermann
- Institute of Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | | | - Martin Hrabe de Angelis
- German Center for Diabetes Research (DZD), Neuherberg, Germany,Institute of Experimental Genetics, German Mouse Clinic, Helmholtz München, German Research Center for Environmental Health, Neuherberg, Germany,Chair of Experimental Genetics, TUM School of Life Sciences, Technische Universität München, Freising, Germany
| | - Matthias H. Tschöp
- German Center for Diabetes Research (DZD), Neuherberg, Germany,Helmholtz München, München, Germany
| | - Paul T. Pfluger
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Neurobiology of Diabetes, Department of Medicine, Technische Universität München, München, Germany
| | - Timo D. Müller
- Institute for Diabetes and Obesity, Helmholtz München, Neuherberg, Germany,German Center for Diabetes Research (DZD), Neuherberg, Germany,Corresponding author. Institute for Diabetes and Obesity, Helmholtz München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany.
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