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Updated: Mar 7, 2026
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Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model
Published on: July 3, 2020
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JAK1/STAT3 signalling in cortical bone development, growth and maintenance.
Natalie Y Y Koh1, Christa Maes2, Natalie A Sims3
1St. Vincent's Institute of Medical Research, Melbourne, Australia; Department of Medicine at St. Vincent's Hospital, The University of Melbourne, Australia; Laboratory of Skeletal Cell Biology and Physiology (SCEBP), Skeletal Biology and Engineering Research Center (SBE), Department of Development and Regeneration, KU Leuven, Leuven, Belgium.
Biochimica Et Biophysica Acta. Molecular Cell Research
|March 5, 2026
Summary
Signal Transducer and Activator of Transcription 3 (STAT3) signaling is crucial for bone development and maintenance. This review details STAT3
Area of Science:
- Bone Biology and Skeletal Development
- Cellular Signaling Pathways
Background:
- Cortical bone structure is vital for skeletal integrity and is regulated by various cellular processes.
- Signal Transducer and Activator of Transcription 3 (STAT3) signaling, particularly via Interleukin-6 (IL-6) family cytokines, influences bone cells like osteoblasts and osteoclasts.
Purpose of the Study:
- To review the regulatory role of STAT3 signaling in cortical bone development and maintenance.
- To explore STAT3's involvement in embryogenesis, postnatal growth, mechanical load response, and age-related bone loss.
Main Methods:
- Review of existing literature on STAT3 signaling in bone biology.
- Analysis of findings from mouse models with genetic modifications affecting STAT3 signaling in specific cell lineages.
Main Results:
- STAT3 signaling in the osteoblast lineage, modulated by cytokines and Suppressor of Cytokine Signalling 3 (SOCS3), is essential for cortical bone maturation and maintenance.
- STAT3 signaling impacts cortical bone development in both long bones and calvariae during embryogenesis and postnatal life.
Conclusions:
- STAT3 signaling is a key regulator of cortical bone development, growth, and maintenance.
- Further research is needed to fully elucidate the complex roles of STAT3 in bone biology and age-related bone loss.
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