Schwann-Spheres from Injured Peripheral Nerves
Author Information
Author(s): Takagi Takehiko, Ishii Ken, Shibata Shinsuke, Yasuda Akimasa, Sato Momoka, Nagoshi Narihito, Saito Harukazu, Okano Hirotaka J., Toyama Yoshiaki, Okano Hideyuki, Nakamura Masaya
Primary Institution: Keio University School of Medicine, Tokyo, Japan
Hypothesis
Can mature Schwann cells in adult peripheral nerves dedifferentiate into stem/progenitor cells after injury and form spheres in culture?
Conclusion
Schwann-spheres derived from injured peripheral nerves show high self-renewal and differentiation capabilities, making them a promising candidate for cell transplantation therapies.
Supporting Evidence
- Schwann-spheres were derived from de-differentiated mature Schwann cells harvested after peripheral nerve injury.
- The spheres showed enhanced myelin formation and neurite growth compared to mature Schwann cells in vitro.
- Approximately 1% of all viable cells were sphere-initiating cells during the peak time after injury.
- Most cells in the spheres expressed the immature-Schwann-cell marker p75.
Takeaway
Scientists found a way to grow special cells called Schwann-spheres from injured nerves in adult mice, which can help repair damaged nerves.
Methodology
The study involved isolating Schwann-cell precursors from injured peripheral nerves of adult mice and culturing them in a floating medium to form spheres.
Limitations
The study primarily focused on in vitro conditions and may not fully represent in vivo behavior.
Participant Demographics
Adult C57BL/6J mice, 7-8 weeks old.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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