The emerging role of Rab proteins in osteoclast organelle biogenesis and function

Rab GTPase proteins have been extensively studied for their roles in regulating vesicle and organelle dynamics. Among the ∼60 subtypes in mammalian cells, several Rabs have been reported to play crucial roles in osteoclast biogenesis and function. In this review, we aim to provide an update on recently described Rab GTPases, Rab11, Rab32, Rab44, and Rab38, as well as Rab7, Rab3D and Rab27A in osteoclast formation and function.