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Updated: Nov 29, 2025

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

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Published on: April 7, 2023

Sclerostin: from bench to bedside.

Sakae Tanaka¹, Toshio Matsumoto²

¹Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. tanakas-ort@h.u-tokyo.ac.jp.

Journal of Bone and Mineral Metabolism

|November 18, 2020

Summary

This summary is machine-generated.

Sclerostin inhibits bone formation by blocking Wnt signaling. The antibody romosozumab blocks sclerostin, increasing bone density and reducing fractures in osteoporosis patients.

Keywords:

Fracture Osteoporosis Remodeling Romosozumab Sclerostin

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Area of Science:

Biochemistry
Bone Biology
Pharmacology

Background:

Skeletal integrity relies on balanced bone resorption and formation.
Canonical Wnt signaling pathways are crucial for skeletal homeostasis.
Sclerostin (encoded by SOST gene) negatively regulates Wnt signaling.

Purpose of the Study:

To review the mechanism of action of sclerostin.
To summarize clinical efficacy and safety of romosozumab, an anti-sclerostin antibody.

Main Methods:

Review of existing literature on sclerostin and romosozumab.
Analysis of clinical studies evaluating romosozumab's effects on bone mineral density and fractures.
Assessment of cardiovascular safety data for romosozumab.

Main Results:

Sclerostin, expressed by osteocytes, binds LRP5/6, inhibiting Wnt signaling and osteoblast function.
Romosozumab inhibits sclerostin-LRP5/6 interaction, activating Wnt signaling and promoting bone formation.
Clinical studies show romosozumab increases bone mineral density and reduces osteoporotic fractures.

Conclusions:

Sclerostin is a key regulator of bone metabolism.
Romosozumab effectively increases bone mineral density and reduces fracture risk.
Cardiovascular safety of romosozumab requires continued monitoring.