Related Experiment Video
Updated: May 31, 2026
10:33
Transplantation of Olfactory Ensheathing Cells to Evaluate Functional Recovery after Peripheral Nerve Injury
Published on: February 23, 2014
Bridging cells: Potential crosstalk between the peripheral and central olfactory sensory system.
Jorge Torres-Paz1, Ricardo Ceriani1, Kathleen E Whitlock1
1Instituto de Neurociencia, Facultad de Ciencias, Universidad de Valparaiso, Chile; Centro Interdisciplinario de Neurociencia de Valparaíso (CINV), Universidad de Valparaíso, Valparaíso, Chile.
Differentiation; Research in Biological Diversity
|May 29, 2026
Summary
Researchers identified unique hybrid glial cells in the adult olfactory system. These cells connect the olfactory epithelia to the brain, potentially influencing neurogenesis and neuronal migration.
Area of Science:
- Neuroscience
- Cell Biology
- Olfactory System Research
Background:
- The olfactory system's unique structure involves direct CNS connections.
- Lifelong neurogenesis occurs in peripheral olfactory organs and central olfactory bulbs.
- The coordination of this neurogenesis remains unclear.
Purpose of the Study:
- To identify and characterize novel cell populations in the adult olfactory epithelia.
- To investigate the potential migratory pathways and functions of these cells.
- To explore the relationship between olfactory epithelia cells and olfactory bulb interneuron production.
Main Methods:
- Immunohistochemistry using Olig2:EGFP and Sox10 markers.
- Analysis of cell morphology and process extension in adult brain sections.
- Whole-mount brain imaging to trace cellular connections.
Main Results:
- A population of neuron-like cells expressing Olig2:EGFP was found in the olfactory epithelia.
- These cells extend processes towards the anterior telencephalic ventricle.
- Sox10-positive cells suggest migration between olfactory epithelia and bulbs, indicating a hybrid glial nature.
Conclusions:
- Olig2:EGFP+ cells represent a novel 'hybrid' glial population linking peripheral olfactory epithelia to the CNS.
- These cells may connect to Sox10+ olfactory ensheathing cells, influencing rostral migratory stream progenitors.
- The findings suggest a coordinated mechanism for neurogenesis and neuronal migration in the adult olfactory system.
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