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A trans-eQTL network regulates osteoclast multinucleation and bone mass

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Title: A trans-eQTL network regulates osteoclast multinucleation and bone mass
Authors: Pereira, M
Ko, J-H
Logan, J
Protheroe, H
Kim, K-B
Tan, ALM
Croucher, PI
Park, K-S
Rotival, M
Petretto, E
Bassett, JD
Williams, GR
Behmoaras, J
Item Type: Journal Article
Abstract: Functional characterisation of cell-type-specific regulatory networks is key to establish a causal link between genetic variation and phenotype. The osteoclast offers a unique model for interrogating the contribution of co-regulated genes to in vivo phenotype as its multinucleation and resorption activities determine quantifiable skeletal traits. Here we took advantage of a trans-regulated gene network (MMnet, macrophage multinucleation network) which we found to be significantly enriched for GWAS variants associated with bone-related phenotypes. We found that the network hub gene Bcat1 and seven other co-regulated MMnet genes out of 13, regulate bone function. Specifically, global (Pik3cb-/-, Atp8b2+/-, Igsf8-/-, Eml1-/-, Appl2-/-, Deptor-/-) and myeloid-specific Slc40a1 knockout mice displayed abnormal bone phenotypes. We report opposing effects of MMnet genes on bone mass in mice and osteoclast multinucleation/resorption in humans with strong correlation between the two. These results identify MMnet as a functionally conserved network that regulates osteoclast multinucleation and bone mass.
Issue Date: 19-Jun-2020
Date of Acceptance: 12-Jun-2020
URI: http://hdl.handle.net/10044/1/80983
DOI: 10.7554/eLife.55549
ISSN: 2050-084X
Publisher: eLife Sciences Publications Ltd
Journal / Book Title: eLife
Volume: 9
Copyright Statement: © Copyright Pereira et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited. (https://creativecommons.org/licenses/by/4.0/)
Sponsor/Funder: Medical Research Council (MRC)
Medical Research Council (MRC)
Funder's Grant Number: MR/M004716/1
Keywords: bone
cell biology
0601 Biochemistry and Cell Biology
Publication Status: Published
Article Number: ARTN e55549
Appears in Collections:Department of Immunology and Inflammation
Department of Metabolism, Digestion and Reproduction
Institute of Clinical Sciences

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