Abstract:
:ASXL2 is an ETP family protein that interacts with PPARγ. We find that ASXL2-/- mice are insulin resistant, lipodystrophic, and fail to respond to a high-fat diet. Consistent with genetic variation at the ASXL2 locus and human bone mineral density, ASXL2-/- mice are also severely osteopetrotic because of failed osteoclast differentiation attended by normal bone formation. ASXL2 regulates the osteoclast via two distinct signaling pathways. It induces osteoclast formation in a PPARγ/c-Fos-dependent manner and is required for RANK ligand- and thiazolidinedione-induced bone resorption independent of PGC-1β. ASXL2 also promotes osteoclast mitochondrial biogenesis in a process mediated by PGC-1β but independent of c-Fos. Thus, ASXL2 is a master regulator of skeletal, lipid, and glucose homeostasis.
journal_name
Cell Repjournal_title
Cell reportsauthors
Izawa T,Rohatgi N,Fukunaga T,Wang QT,Silva MJ,Gardner MJ,McDaniel ML,Abumrad NA,Semenkovich CF,Teitelbaum SL,Zou Wdoi
10.1016/j.celrep.2015.05.019subject
Has Abstractpub_date
2015-06-16 00:00:00pages
1625-37issue
10issn
2211-1247pii
S2211-1247(15)00545-8journal_volume
11pub_type
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