Related Experiment Video
Updated: Jun 13, 2026

08:43
Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
Published on: May 31, 2016
Sclerostin: current knowledge and future perspectives.
M J C Moester1, S E Papapoulos, C W G M Löwik
1Department of Endocrinology and Metabolic Diseases, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
Calcified Tissue International
|May 18, 2010
Summary
Rare bone disorders reveal sclerostin
Area of Science:
- Bone biology and skeletal development.
- Endocrinology and metabolic bone diseases.
- Genetics of bone disorders.
Background:
- Rare bone disorders like sclerosteosis and van Buchem disease are linked to sclerostin deficiency.
- Sclerostin, an osteocyte-secreted protein, inhibits osteoblast bone formation.
- These conditions highlight sclerostin's critical role in bone regulation.
Purpose of the Study:
- To review current knowledge on sclerostin.
- To explore sclerostin's regulation, formation, and mechanism of action.
- To assess sclerostin's therapeutic potential for bone formation.
Main Methods:
- Literature review of studies on sclerostin and bone disorders.
- Analysis of sclerostin's expression, secretion, and function.
- Evaluation of clinical data from patients with sclerostin deficiency.
Main Results:
- Sclerostin deficiency causes sclerosing bone dysplasias with high bone quality.
- Understanding sclerostin's inhibitory role is key to bone anabolism.
- Targeting sclerostin offers a promising therapeutic strategy.
Conclusions:
- Sclerostin is a crucial regulator of bone formation.
- Targeting sclerostin holds potential for treating osteoporosis.
- Further research into sclerostin pathways can advance bone disease therapies.
Related Concept Videos
Atherosclerosis I: Introduction
Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...
Osteoclasts in Bone Remodeling
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Connective Tissue Cell Types
Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Structural Protein Function
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to form...
Cholesterol: Significance and Regulation
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
Mesenchymal Stem Cells
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their access...