Visualizing enteric nervous system activity through dye-free dynamic full-field optical coherence tomography.
Tony DurandPerrine Paul-GilloteauxMichalina GoraLara LaboudieEmmanuel CoronIsabelle NeveuMichel NeunlistPhilippe NaveilhanPublished in: Communications biology (2023)
Major advances have been achieved in imaging technologies but most methodological approaches currently used to study the enteric neuronal functions rely on exogenous contrast dyes that can interfere with cellular functions or survival. In the present paper, we investigated whether full-field optical coherence tomography (FFOCT), could be used to visualize and analyze the cells of the enteric nervous system. Experimental work on whole-mount preparations of unfixed mouse colons showed that FFOCT enables the visualization of the myenteric plexus network whereas dynamic FFOCT enables to visualize and identify in situ individual cells in the myenteric ganglia. Analyzes also showed that dynamic FFOCT signal could be modified by external stimuli such veratridine or changes in osmolarity. These data suggest that dynamic FFOCT could be of great interest to detect changes in the functions of enteric neurons and glia in normal and disease conditions.
Keyphrases
- optical coherence tomography
- induced apoptosis
- cell cycle arrest
- magnetic resonance
- diabetic retinopathy
- endoplasmic reticulum stress
- cell death
- signaling pathway
- magnetic resonance imaging
- electronic health record
- cell proliferation
- computed tomography
- big data
- machine learning
- spinal cord injury
- ultrasound guided
- contrast enhanced
- aqueous solution
- atomic force microscopy
- single molecule
- high speed