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Related Concept Videos

Hormones and Bone Tissue01:17

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Bone Remodeling and Repair01:31

Bone Remodeling and Repair

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...
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
The Bone Matrix01:18

The Bone Matrix

Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...
Osteoclasts in Bone Remodeling01:31

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...

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Related Experiment Video

Updated: Jul 16, 2026

Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry
11:20

Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry

Published on: March 29, 2018

Anabolic agents and the bone morphogenetic protein pathway.

I R Garrett1

  • 1OsteoScreen, San Antonio, Texas 78229, USA.

Current Topics in Developmental Biology
|March 7, 2007
PubMed
Summary

New orally available bone anabolic agents are needed to treat osteoporosis and bone loss. Research into bone morphogenetic proteins (BMPs) has identified promising small compounds for future bone therapies.

Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Pharmacology

Background:

  • Osteoporosis and bone deficit conditions represent a significant unmet medical need.
  • Current treatments for substantial bone loss are limited, leading to fractures and morbidity.
  • While Teriparatide (PTH 1-34) is an approved bone anabolic agent, its high cost and administration challenges limit its use.

Purpose of the Study:

  • To address the need for low-cost, orally available bone anabolic agents.
  • To explore novel therapeutic strategies for osteoporosis and bone deficit conditions.
  • To investigate small molecular weight compounds targeting the bone morphogenetic protein (BMP) pathway.

Main Methods:

  • Review of current osteoporosis treatments and their limitations.

More Related Videos

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
08:43

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

Published on: May 31, 2016

Related Experiment Videos

Last Updated: Jul 16, 2026

Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry
11:20

Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry

Published on: March 29, 2018

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
08:43

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

Published on: May 31, 2016

  • Exploration of the role of bone growth factors, particularly BMPs, in bone formation.
  • Investigation of recent research into small molecular weight compounds regulating the BMP pathway.
  • Main Results:

    • Identification of bone morphogenetic proteins (BMPs) as central regulators of bone and cartilage formation.
    • Discovery of small molecular weight compounds that modulate the BMP pathway.
    • Potential for these compounds to act as novel bone anabolic agents.

    Conclusions:

    • Small molecular weight compounds targeting the BMP pathway show promise as future bone anabolic agents.
    • These agents could offer innovative treatments for osteoporosis and orthopedic/dental indications.
    • Development of orally available agents is critical for improving patient outcomes in bone loss conditions.