Dissection and Isolation of Mouse Dorsal Root Ganglia
July 3rd, 2026
Dorsal root ganglia (DRG) contain primary sensory neuron cell bodies and relay peripheral sensory signals to the spinal cord. This protocol describes a method for mouse DRG dissection that supports standardized isolation of structurally intact ganglia, anatomical segmental identification, intuitive guidance for novice users, and reduced procedural tissue injury.
Overview
This article presents a standardized protocol for the isolation of dorsal root ganglia (DRG) from mice. DRG are essential for sensory signal transmission and are widely studied in pain, nerve injury, and neurodegenerative disease research. The protocol addresses the technical challenges of DRG identification and extraction, providing detailed anatomical guidance and supporting high-quality tissue recovery for downstream analyses.
Key Study Components
Area of Science
- Neuroscience
- Neuroanatomy
- Histology
Background
- DRG contain the cell bodies of primary sensory neurons.
- They are critical for transmitting sensory signals from peripheral tissues to the spinal cord.
- DRG are important in studies of pain, nerve injury, and neurodegenerative diseases.
- Obtaining intact DRG tissue is technically challenging due to their small size and deep anatomical location.
Purpose of Study
- To develop and describe a standardized protocol for isolating mouse DRG.
- To provide anatomical guidance for accurate DRG localization and extraction.
- To facilitate segmental identification and minimize tissue injury during dissection.
Methods Used
- Detailed anatomical localization of DRG in mice.
- Exposure of the vertebral canal for access to DRG.
- Step-by-step ganglion isolation procedure.
- Use of representative images and video recordings to illustrate the process.
Main Results
- The protocol enables standardized recovery of segmentally identified DRG.
- Provides intuitive anatomical guidance suitable for novice users.
- Reduces procedural tissue injury compared to previous methods.
- Isolated DRG are suitable for H&E staining and immunofluorescence analysis.
Conclusions
- This method improves the accuracy and reproducibility of mouse DRG isolation.
- It supports high-quality tissue acquisition for functional and molecular studies.
- The protocol is accessible for both experienced and novice researchers.
