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Related Concept Videos

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.
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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...
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Related Experiment Video

Updated: Mar 23, 2026

Improved Methodology for Studying Postnatal Osteogenesis via Intramembranous Ossification in a Murine Bone Marrow Injury Model
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MicroRNAs and Bone Regeneration.

Tomoyuki Nakasa1, Masaaki Yoshizuka1, Muhammad Andry Usman1

  • 1Department of Orthopaedics Surgery, Integrated Health Sciences, Institute of Biomedical & health Science, Hiroshima University, 1-2-3 Kasumi Minami-ku, Hiroshima City, 734-8551, Japan.

Current Genomics
|March 29, 2016
PubMed
Summary
This summary is machine-generated.

MicroRNAs (miRNAs) regulate gene expression and are crucial for osteoblast differentiation, offering potential for bone regeneration therapies. Targeting miRNAs shows promise for treating bone diseases like osteoporosis and fractures.

Keywords:
BoneOsteoblastSignaling pathway.Transcription factormicroRNA

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Area of Science:

  • Biomedical Science
  • Molecular Biology
  • Regenerative Medicine

Background:

  • Bone performs critical morphological and physiological functions, and is susceptible to pathologies like fracture and osteoporosis.
  • Osteoblast differentiation is key for bone regeneration, and microRNAs (miRNAs) are recognized regulators of cellular processes.
  • MiRNAs influence gene expression post-transcriptionally and are implicated in disease pathogenesis.

Purpose of the Study:

  • To explore the role of miRNAs in regulating osteoblast differentiation.
  • To investigate the potential of miRNA-based therapeutics for bone regeneration.
  • To provide new insights into miRNA mechanisms affecting osteogenesis.

Main Methods:

  • Review of current literature on miRNA function in bone biology.
  • Analysis of signaling pathways and transcription factors regulated by miRNAs in osteogenesis.
  • Examination of preclinical therapeutic trials targeting miRNAs for bone diseases.

Main Results:

  • MiRNAs significantly regulate osteoblast differentiation through various signaling pathways.
  • Understanding miRNA mechanisms provides new insights into osteogenesis.
  • Animal model studies demonstrate the efficacy of miRNA-targeted therapies for bone defects.

Conclusions:

  • MiRNA regulation is vital for osteoblast differentiation and bone regeneration.
  • Targeting miRNAs offers a promising therapeutic strategy for bone diseases.
  • MiRNA-based therapies hold potential for advancing bone regeneration treatments.