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Updated: Dec 30, 2025

Chromatin Immunoprecipitation from Dorsal Root Ganglia Tissue following Axonal Injury

Chromatin Immunoprecipitation from Dorsal Root Ganglia Tissue following Axonal Injury

Published on: July 20, 2011

Temporal changes in the spinal cord transcriptome after peripheral nerve injury.

Jian Weng¹, Dong-Dong Li², Bao-Guo Jiang³

¹Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing; Department of Bone & Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong Province, China.

Neural Regeneration Research

|January 22, 2020

Summary

Peripheral nerve injury alters spinal cord mRNA levels, peaking at 4 weeks post-injury. Identifying these key messenger RNAs (mRNAs) offers new therapeutic targets for nerve repair.

Keywords:

RNA sequencing deep sequencing expression profile gene therapy mRNAs nerve regeneration peripheral nerve injury sciatic nerve injury spinal cord transcriptome

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Published on: November 20, 2009

Area of Science:

Neuroscience
Molecular Biology
Genomics

Background:

Peripheral nerve injuries can induce significant changes in spinal cord gene expression.
Identifying specific messenger RNAs (mRNAs) involved is crucial for developing effective nerve repair strategies.

Purpose of the Study:

To investigate dynamic changes in spinal cord mRNA expression following sciatic nerve injury using transcriptomic analysis.
To identify key differentially expressed mRNAs and associated biological pathways.

Main Methods:

Established a sciatic nerve denervation model in C57BL/6 mice.
Collected spinal cord tissue at multiple time points (0, 1, 2, 4, 8 weeks) post-injury.
Performed RNA sequencing and bioinformatic analysis to identify differentially expressed mRNAs.

Main Results:

Identified 1915 differentially expressed mRNAs, with the highest number at 4 weeks post-injury.
Key mRNAs were associated with lipid metabolism, mitochondrial function, and cellular responses.
Pathway analysis revealed involvement in aldosterone regulation, oxidative phosphorylation, and inflammation.

Conclusions:

Spinal cord mRNA expression changes dynamically after peripheral nerve injury, with a peak at 4 weeks.
These findings provide valuable data for identifying novel therapeutic targets for peripheral nerve injury and repair.
The study highlights the potential of gene therapy approaches for nerve regeneration.