Title:Study of Intercellular Adhesion Molecule-1 (ICAM-1) in Bone Homeostasis
VOLUME: 21 ISSUE: 4
Author(s):Lingbo Kong and Xiaobin Yang*
Affiliation:Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Shaanxi, Department of Orthopedics, Honghui Hospital, Xi'an Jiaotong University, School of Medicine, Shaanxi
Keywords:Integrin, bone homeostasis, osteoclastogenesis, ICAM-1, LFA-1, therapeutic drug targets.
Abstract:Although studies have established the role of integrins in bone homeostasis, especially in
osteoclastogenesis, and these molecules are novel and promising therapeutic drug targets for bone loss
diseases, such as: osteolysis, the cellular mechanism still elusive. Bone homeostasis takes place
through the interaction of bone cells (osteoblasts and osteoclast) via the activation of intercellular adhesion
molecule-1 (ICAM-1), which is a critical submolecule of integrin. In the present study, we reviewed
several novel studies on integrins and their submolecule, ICAM-1, in bone homeostasis. In order
to demonstrated that ICAM-1 might exert dual effects on osteoclastogenesis by directly affecting
the adhesive ability of mature osteoclasts and indirectly participating in RANKL/RANK induced osteoclastic
precursors differentiation. Although these results still need to be verified in the future, the
extending study about the role of ICAM-1 in osteoclastogenesis will cerntainly provide a promising
therapeutic target for the treatment of bone loss diseases.