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Updated: May 14, 2026
06:46
Ex Vivo Corneal Organ Culture Model for Wound Healing Studies
Published on: February 15, 2019
Parasympathetic stimulation improves epithelial organ regeneration
Sarah M Knox1, Isabelle M A Lombaert, Candace L Haddox
1Matrix and Morphogenesis Section, LCDB, NIDCR, NIH, 30 Convent Drive, Bethesda, Maryland 20892, USA.
Nature Communications
|February 21, 2013
Summary
Restoring parasympathetic nerve function with neurturin promotes organ regeneration after injury. This neurotrophic factor protects nerves and enhances epithelial repair, offering potential treatments for damaged organs.
Area of Science:
- Regenerative Medicine
- Neuroscience
- Developmental Biology
Background:
- Parasympathetic nerves are crucial for progenitor cell maintenance during organ development.
- Impaired organ regeneration in adults, especially after irradiation damage, limits therapeutic options.
- Reduced parasympathetic function and neurturin expression are linked to organ damage.
Purpose of the Study:
- To investigate the role of neurturin in promoting organ regeneration after injury.
- To determine if restoring parasympathetic function can enhance epithelial repair.
- To explore the potential of neurturin as a therapeutic agent for organ damage.
Main Methods:
- Utilized mouse salivary gland explant cultures with fluorescently labeled progenitors.
- Induced tissue injury using controlled irradiation.
- Assessed progenitor survival, parasympathetic function, apoptosis, and neurturin expression.
- Administered neurturin treatment to evaluate its effects on regeneration.
Main Results:
- Irradiation diminished parasympathetic function and reduced neurturin expression, leading to increased apoptosis.
- Neurturin treatment reduced neuronal apoptosis and restored parasympathetic function.
- Restored parasympathetic function significantly increased epithelial organ regeneration.
- Reduced parasympathetic innervation was also observed in human salivary glands damaged by irradiation.
Conclusions:
- Neurturin protects parasympathetic nerves from damage and promotes epithelial organ regeneration.
- Restoring parasympathetic function is a viable strategy for improving organ repair after injury.
- The findings suggest neurturin's potential therapeutic application for various organs with parasympathetic innervation.
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