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Related Concept Videos

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...
Bone Remodeling01:40

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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.
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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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...
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Bone Cells and Tissue

Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the periosteum and...
Bone Remodeling and Repair01:31

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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...
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...

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Tissue Preparation and Immunostaining of Mouse Craniofacial Tissues and Undecalcified Bone
10:03

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Smurf control in bone cells.

Lianping Xing1, Ming Zhang, Di Chen

  • 1Department of Pathology, University of Rochester School of Medicine, Rochester, New York 14642, USA.

Journal of Cellular Biochemistry
|June 1, 2010
PubMed
Summary
This summary is machine-generated.

Smurf1, a HECT domain E3 ubiquitin ligase, is crucial for bone cell function and implicated in various diseases. Research explores its regulation and potential as an anticancer target.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • Smurf1 is a HECT domain E3 ubiquitin ligase.
  • It is the first E3 ligase identified to regulate bone cell function.
  • Smurf1 is involved in multiple signaling pathways and pathological conditions.

Purpose of the Study:

  • To review recent research on Smurf1-regulated biological processes in bone cells.
  • To highlight discoveries in the regulatory mechanisms of Smurf1's activity and substrate recognition.
  • To discuss the therapeutic potential of targeting HECT E3s in cancer treatment.

Main Methods:

  • Literature review of recent scientific works.
  • Analysis of regulatory mechanisms.
  • Discussion of therapeutic strategies.

Main Results:

  • Smurf1 plays a significant role in bone cell biology.
  • Novel regulatory mechanisms of Smurf1 catalytic activity and substrate recognition have been identified.
  • HECT E3s represent a promising target for anticancer drug development.

Conclusions:

  • Smurf1 is a key regulator in bone cells with implications for disease.
  • Understanding Smurf1 regulation is critical for therapeutic interventions.
  • Targeting HECT E3s offers a potential anticancer strategy.