RRC ID 87215
Author Lee H, Kim DW.
Title Deletion of ATAD3A inhibits osteogenesis by impairing mitochondria structure and function in pre-osteoblast.
Journal Dev Dyn
Abstract BACKGROUND:ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear encoded mitochondrial membrane protein that spans inner and outer membrane, and it has been shown to regulate mitochondrial dynamics and cholesterol metabolism. Since the mitochondrial functions have been implicated for osteogenic differentiation, a role of ATAD3A in skeletal development has been investigated.
RESULTS:Mesenchyme-specific ATAD3 knockout mice displayed severe defects in skeletal development. Additionally, osteoblast-specific deletion of ATAD3 in mice caused significant reduction in bone mass, while cartilage-specific ATAD3 knockout mice did not show any significant phenotypes. Consistent with these in vivo findings, ATAD3A knockdown impaired mitochondrial morphology and function in calvarial pre-osteoblast cultures, which, in turn, suppressed osteogenic differentiation in vitro.
CONCLUSIONS:The current findings suggest that ATAD3A plays a crucial role in mitochondria homeostasis, which is required for osteogenic differentiation during skeletal development.
Volume 251(12)
Pages 1982-2000
Published 2022-12-1
DOI 10.1002/dvdy.528
PMID 36000457
MeSH ATPases Associated with Diverse Cellular Activities / genetics ATPases Associated with Diverse Cellular Activities / metabolism Adenosine Triphosphatases / genetics Adenosine Triphosphatases / metabolism Animals Membrane Proteins / genetics Membrane Proteins / metabolism Mice Mice, Knockout Mitochondria / metabolism Mitochondrial Proteins* / genetics Osteoblasts / metabolism Osteogenesis* / genetics
IF 3.275
Resource
Human and Animal Cells ATDC5(RCB0565)