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Schwann cell functions in peripheral nerve development and repair
Mar Bosch-Queralt1, Robert Fledrich2, Ruth M Stassart1
1Paul-Flechsig-Institut of Neuropathology, University Clinic Leipzig, Leipzig, Germany.
Neurobiology of Disease
|December 9, 2022
Summary
Schwann cells (SCs) are versatile peripheral nervous system glial cells crucial for neuronal survival, nerve development, and repair. Their multifaceted roles in development, maintenance, and regeneration highlight their importance in the nervous system.
Area of Science:
- Neuroscience
- Cell Biology
- Peripheral Nervous System (PNS) Biology
Background:
- Schwann cells (SCs) are glial cells of the peripheral nervous system (PNS) with diverse functions.
- SCs are essential for neuronal survival, axonal guidance, and the structural organization of developing nerves.
Purpose of the Study:
- To summarize and discuss the known and unknown functions of Schwann cells in the PNS.
- To highlight the multifaceted roles of SCs in peripheral nerve development, maintenance, and repair.
Main Methods:
- Review and synthesis of existing literature on Schwann cell biology.
- Discussion of molecular mechanisms underlying SC functions.
Main Results:
- SCs play critical roles in axonal myelination, support of non-myelinated axons (Remak bundles), and maintenance of axonal health.
- Specialized SC types perform unique functions at specific locations, including the neuromuscular junction and sensory end organs.
- SCs exhibit remarkable plasticity, transdifferentiating into repair cells to promote nerve regeneration after injury.
Conclusions:
- Schwann cells are indispensable for PNS development, function, and regeneration.
- Further research is needed to fully elucidate the molecular underpinnings of SC plasticity and diverse functions.