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Comparisons between the effects of calcitonin receptor-stimulating peptide and intermedin and other peptides in the calcitonin family on bone resorption and osteoclastogenesis
Umeå University, Faculty of Medicine, Department of Odontology, Molecular Periodontology.
Göteborgs universitet.
Umeå University, Faculty of Medicine, Department of Odontology, Molecular Periodontology.
2011 (English)In: Journal of Cellular Biochemistry, ISSN 0730-2312, E-ISSN 1097-4644, Vol. 112, no 11, 3300-3312 p.Article in journal (Refereed) Published
Abstract [en]

Calcitonin receptor-stimulating peptide (CRSP) and intermedin (IMD) are two recently discovered peptides in the calcitonin (CT) family of peptides. CRSP and IMD, similar to CT, calcitonin gene-related peptide (CGRP) and amylin (AMY), but in contrast to adrenomedullin (ADM), inhibited bone resorption in mouse calvarial bones. CRSP and IMD, similar to CT, CGRP, AMY, but in contrast to ADM, decreased formation of osteoclasts and number of pits in bone marrow macrophage cultures stimulated by M-CSF and RANKL, with no effect on the expression of a number of genes associated with osteoclast progenitor cell differentiation. CRSP and IMD inhibited osteoclastogenesis at a late stage but had no effect on DC-STAMP mRNA. IMD, similar to CGRP, AMY and ADM stimulated cyclic AMP formation in M-CSF expanded osteoclast progenitor cells lacking CT receptors. RANKL induced CT receptors and a cyclic AMP response also to CT and CRSP, and increased the cyclic AMP response to CGRP, AMY and IMD but decreased the response to ADM. Our data demonstrate that CRSP and IMD share several functional properties of peptides in the CT family of peptides, including inhibition of bone resorption and osteoclast formation. The data also show that the reason why ADM does not inhibit osteoclast activity or formation is related to the fact that RANKL decreases ADM receptor signalling through the adenylate cyclase-cyclic AMP pathway. Finally, the findings indicate that activation by CGRP, AMY and IMD may include activation of both CT and CT receptor-like receptors. J. Cell. Biochem. © 2011 Wiley-Liss, Inc.

Place, publisher, year, edition, pages
Wiley , 2011. Vol. 112, no 11, 3300-3312 p.
Keyword [en]
intermedin, calcitonin, calcitonin receptor-stimlating peptide, osteoclasts
National Category
Cell and Molecular Biology
Identifiers
URN: urn:nbn:se:umu:diva-47562DOI: 10.1002/jcb.23256PubMedID: 21748786OAI: oai:DiVA.org:umu-47562DiVA: diva2:442987
Available from: 2011-09-23 Created: 2011-09-23 Last updated: 2017-12-08Bibliographically approved

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Granholm, SusanneLerner, Ulf H

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