Description
RANK (Receptor Activator of Nuclear Factor κ B) is a member of the tumor necrosis factor receptor (TNFR) family, which is involved in the regulation of dendritic cell function.1 RANK is expressed on osteoclasts and their precursors, hematopoietic precursors, dendritic cells, and mammary epithelial precursors2 and is known as a regulator of development and activation of osteoclasts in bone remodeling.3 Activation of the RANK-RANKL signaling pathway is directly responsible for dramatic focal erosions that are observed in inflammatory arthritis and aseptic loosening of orthopaedic implants.4