Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease

Paget’s disease of bone (PDB) is a common disease characterized by osteoclast activation that leads to various skeletal complications. Susceptibility to PDB is mediated by a common variant at the optineurin (OPTN) locus, which is associated with reduced levels of mRNA. However, it is unclear how thi...

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Main Authors: Obaid, Rami, Wani, Sachin E., Azfer, Asim, Hurd, Toby, Jones, Ruth, Cohen, Philip, Ralston, Stuart H., Albagha, Omar M.E.
Format: Online
Language:English
Published: Cell Press 2015
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646838/
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recordtype oai_dc
spelling pubmed-46468382015-12-08 Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease Obaid, Rami Wani, Sachin E. Azfer, Asim Hurd, Toby Jones, Ruth Cohen, Philip Ralston, Stuart H. Albagha, Omar M.E. Report Paget’s disease of bone (PDB) is a common disease characterized by osteoclast activation that leads to various skeletal complications. Susceptibility to PDB is mediated by a common variant at the optineurin (OPTN) locus, which is associated with reduced levels of mRNA. However, it is unclear how this leads to the development of PDB. Here, we show that OPTN acts as a negative regulator of osteoclast differentiation in vitro and that mice with a loss-of-function mutation in Optn have increased osteoclast activity and bone turnover. Osteoclasts derived from Optn mutant mice have an increase in NF-κB activation and a reduction in interferon beta expression in response to RANKL when compared to wild-type mice. These studies identify OPTN as a regulator of bone resorption and are consistent with a model whereby genetically determined reductions in OPTN expression predispose to PDB by enhancing osteoclast differentiation. Cell Press 2015-10-29 /pmc/articles/PMC4646838/ /pubmed/26527009 http://dx.doi.org/10.1016/j.celrep.2015.09.071 Text en © 2015 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Obaid, Rami
Wani, Sachin E.
Azfer, Asim
Hurd, Toby
Jones, Ruth
Cohen, Philip
Ralston, Stuart H.
Albagha, Omar M.E.
spellingShingle Obaid, Rami
Wani, Sachin E.
Azfer, Asim
Hurd, Toby
Jones, Ruth
Cohen, Philip
Ralston, Stuart H.
Albagha, Omar M.E.
Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
author_facet Obaid, Rami
Wani, Sachin E.
Azfer, Asim
Hurd, Toby
Jones, Ruth
Cohen, Philip
Ralston, Stuart H.
Albagha, Omar M.E.
author_sort Obaid, Rami
title Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
title_short Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
title_full Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
title_fullStr Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
title_full_unstemmed Optineurin Negatively Regulates Osteoclast Differentiation by Modulating NF-κB and Interferon Signaling: Implications for Paget’s Disease
title_sort optineurin negatively regulates osteoclast differentiation by modulating nf-κb and interferon signaling: implications for paget’s disease
description Paget’s disease of bone (PDB) is a common disease characterized by osteoclast activation that leads to various skeletal complications. Susceptibility to PDB is mediated by a common variant at the optineurin (OPTN) locus, which is associated with reduced levels of mRNA. However, it is unclear how this leads to the development of PDB. Here, we show that OPTN acts as a negative regulator of osteoclast differentiation in vitro and that mice with a loss-of-function mutation in Optn have increased osteoclast activity and bone turnover. Osteoclasts derived from Optn mutant mice have an increase in NF-κB activation and a reduction in interferon beta expression in response to RANKL when compared to wild-type mice. These studies identify OPTN as a regulator of bone resorption and are consistent with a model whereby genetically determined reductions in OPTN expression predispose to PDB by enhancing osteoclast differentiation.
publisher Cell Press
publishDate 2015
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646838/
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