» Articles » PMID: 22019888

Suppression of Bone Formation by Osteoclastic Expression of Semaphorin 4D

Overview
Journal Nat Med
Date 2011 Oct 25
PMID 22019888
Citations 211
Authors
Affiliations
Soon will be listed here.
Abstract

Most of the currently available drugs for osteoporosis inhibit osteoclastic bone resorption; only a few drugs promote osteoblastic bone formation. It is thus becoming increasingly necessary to identify the factors that regulate bone formation. We found that osteoclasts express semaphorin 4D (Sema4D), previously shown to be an axon guidance molecule, which potently inhibits bone formation. The binding of Sema4D to its receptor Plexin-B1 on osteoblasts resulted in the activation of the small GTPase RhoA, which inhibits bone formation by suppressing insulin-like growth factor-1 (IGF-1) signaling and by modulating osteoblast motility. Sema4d-/- mice, Plxnb1-/- mice and mice expressing a dominant-negative RhoA specifically in osteoblasts showed an osteosclerotic phenotype due to augmented bone formation. Notably, Sema4D-specific antibody treatment markedly prevented bone loss in a model of postmenopausal osteoporosis. Thus, Sema4D has emerged as a new therapeutic target for the discovery and development of bone-increasing drugs.

Citing Articles

Strategies for promoting neurovascularization in bone regeneration.

Li X, Zhao Y, Miao L, An Y, Wu F, Han J Mil Med Res. 2025; 12(1):9.

PMID: 40025573 PMC: 11874146. DOI: 10.1186/s40779-025-00596-1.


sLZIP functions as a key modulator of bone remodeling by regulating the crosstalk between osteoblasts and osteoclasts.

Park S, Kim J, Ko J Exp Mol Med. 2025; .

PMID: 40025167 DOI: 10.1038/s12276-025-01414-3.


Osteoporosis and Rheumatoid Arthritis: Mechanisms Underlying Osteoclast Differentiation and Activation or Factors Associated with Hip Fractures.

Miyamoto T J Clin Med. 2025; 14(4).

PMID: 40004668 PMC: 11856638. DOI: 10.3390/jcm14041138.


Impact of Different Cell Types on the Osteogenic Differentiation Process of Mesenchymal Stem Cells.

Wang Z, Ren L, Li Z, Qiu Q, Wang H, Huang X Stem Cells Int. 2025; 2025:5551222.

PMID: 39980864 PMC: 11842143. DOI: 10.1155/sci/5551222.


Modeling Musculoskeletal Disorders in Zebrafish: Advancements in Muscle and Bone Research.

Dalle Carbonare L, Braggio M, Minoia A, Cominacini M, Romanelli M, Pessoa J Cells. 2025; 14(1.

PMID: 39791729 PMC: 11719663. DOI: 10.3390/cells14010028.


References
1.
Takayanagi H, Kim S, Koga T, Nishina H, Isshiki M, Yoshida H . Induction and activation of the transcription factor NFATc1 (NFAT2) integrate RANKL signaling in terminal differentiation of osteoclasts. Dev Cell. 2002; 3(6):889-901. DOI: 10.1016/s1534-5807(02)00369-6. View

2.
Takahashi H, EPKER B, Frost H . RESORPTION PRECEDES FORMATIVE ACTIVITY. Surg Forum. 1964; 15:437-8. View

3.
Yadav V, Balaji S, Suresh P, Liu X, Lu X, Li Z . Pharmacological inhibition of gut-derived serotonin synthesis is a potential bone anabolic treatment for osteoporosis. Nat Med. 2010; 16(3):308-12. PMC: 2836724. DOI: 10.1038/nm.2098. View

4.
Sordella R, Classon M, Hu K, Matheson S, Brouns M, Fine B . Modulation of CREB activity by the Rho GTPase regulates cell and organism size during mouse embryonic development. Dev Cell. 2002; 2(5):553-65. DOI: 10.1016/s1534-5807(02)00162-4. View

5.
Hirschberg A, Deng S, Korostylev A, Paldy E, Costa M, Worzfeld T . Gene deletion mutants reveal a role for semaphorin receptors of the plexin-B family in mechanisms underlying corticogenesis. Mol Cell Biol. 2009; 30(3):764-80. PMC: 2812242. DOI: 10.1128/MCB.01458-09. View