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MicroRNA profiling in dorsal root ganglion after sciatic nerve injury

ABSTRACT: Changes in microRNA (miRNA) expression in the mouse L4 and L5 dorsal root ganglion following unilateral sciatic nerve transection. The timepoint of 7 days post-axotomy was chosen to capture miRNA expression profiles at a time when the injured neurons were beginning to regenerate.

ORGANISM(S): Mus musculus

PROVIDER: GSE29096 | GEO | 2011/05/06

SECONDARY ACCESSION(S): PRJNA140325

REPOSITORIES: GEO

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MicroRNA profiling in dorsal root ganglion after sciatic nerve injury

Project description:Changes in microRNA (miRNA) expression in the mouse L4 and L5 dorsal root ganglion following unilateral sciatic nerve transection. The timepoint of 7 days post-axotomy was chosen to capture miRNA expression profiles at a time when the injured neurons were beginning to regenerate. Two condition experiment, paired control DRG vs axotomised DRG following unilateral sciatic nerve transection. 3 biological replicates, one replicate per array. Dye swap in Replicate 2.

2011-05-06 | E-GEOD-29096 | biostudies-arrayexpress

FACS purified Nav1.8 lineage sensory neuron whole transcriptome changes following peripheral inflammation (CFA) or sciatic nerve injury (SNI).

Project description:The goal of this study was to analyze global gene expression in FACS purified Nav1.8 lineage sensory neurons, which include nociceptor neurons that detect damaging/noxious stimuli, following peripheral inflammation by intraplantar injection of Complete Freund's Adjuvant (CFA) or Sciatic Nerve Injury (SNI) by nerve transection. Nav1.8 Trangsgenic TdTomato+ neurons were purified from Lumbar L4-L6 dorsal root ganglia (DRG) by flow cytometry from mice on the ipsilateral or contralateral sides, following Complete Freund's Adjuvant injection (day 1) or sciatic nerve transection (day 5). Neurons were then analyzed for transcriptional gene expression by microarray analysis.

2023-01-30 | GSE221834 | GEO

Gene expression in mouse DRG neurons at 2 or 5 days post-sciatic lesion in WT and Nfil3-KO

Project description:Mice with a deletion of transcription factor Nfil3 show delayed functional regeneration after sciatic lesion compared to WT mice. To analyze differential gene expression, sciatic nerves were lesioned and nerve endings were coaptated. After two or 5 days, DRGs L4 and L5 were dissected out and gene expression was measured by microarray. Control tissue was taken from the non-injured side. We found that expression of classic regeneration associated genes was similar in WT and Nfil3 KO mice. We did identify a group of differentially expressed genes known for its role in olfactory signal transduction, but were not known as regeneration associated genes until now, which may explain the negative effects on functional recovery. Gene expression in DRGs L4 and L5 from WT and NFIL3 KO mice was analyzed at 2 and 5 days after receiving a sciatic nerve lesion. Control tissue was taken from the non-injured side. Four biological replicates were used per condition. Microarray chips were two color chips, but each channel was analyzed in single color fashion. Conditions were pseudo-randomized over chips in a balanced dye-swap setup.

2015-02-25 | E-GEOD-66259 | biostudies-arrayexpress

Whole-genome gene expression profiling of dorsal root ganglion neurons after nerve damage

Project description:We generated whole-genome gene expression profiles of dorsal root ganglion (DRG) neurons following nerve damage. DRG neurons extend one peripheral axon into the spinal nerve and one central axon into the dorsal root. The peripheral axon regenerates vigorously, while in contrast the central axon has little regenerative capacity. For this study, two groups of animals were subjected either to sciatic nerve (SN) or dorsal root (DR) crush, and at 12, 24, 72 hours and 7 days after the crush, lumbar DRGs L4, L5 and L6 were dissected and total RNA was extracted.

2010-09-01 | GSE21007 | GEO

Gene expression in mouse DRG neurons at 2 or 5 days post-sciatic lesion in WT and Nfil3-KO

2015-02-25 | GSE66259 | GEO

Whole-genome gene expression profiling of dorsal root ganglion neurons after nerve damage

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RNA-Seq of DRG and dorsal cord after nerve injury

Project description:Genes are up and down regualted in DRG and spinal dorsal cord after peripheral nerve injury WT male adult with sciatic and femoral nerve transection 7 days, RNA was purified from ipilateral or contralateral L4-L6 DRGs or lumbar spinal dorsal cords

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Proximal sciatic nerve stumps exhibit sexually dimorphic transcriptome changes in mice after peripheral nerve injury (axotomy)

Project description:Transcriptional changes are distinct in female and male mice in the time course of peripheral nerve injury response. Here, we present sexually dimorphic transcriptome profiles established in the space of 24 h period after sciatic nerve axotomy.

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Expression data from rat dorsal root ganglion after chronic compression

Project description:Neuropathic pain (NP) is caused by primary or secondary impairment of the peripheral or central nervous systems. Its etiology is complex and involves abnormal patterns of gene expression and pathway activation. Using bioinformatic analysis, we aimed to identify NP-associated changes in genes and pathways in L4 and L5 dorsal root ganglia (DRG) in a rat model of NP induced by chronic compression of the DRG (CCD). All rats were divided into the sham and CCD groups randomly. Rats in CCD groups were anesthetized, followed by the implantation of two stainless steel rods in the intervertebral foramina between L4 and L5. Rats in the sham-operated group underwent the same procedure without steel rod insertion. DRG were harvested on the 7th day post-surgery.

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Gene expression from aged and young dorsal root ganglia after nerve injury

Project description:Sciatic nerve crush was performed on cohorts of 2-month and 24-month old animals. Resulting gene-expression data were generated from dorsal root ganglia 5 days after injury compared to naïve animals. Results show differences in intrinsic growth responses with normal aging. Total RNA taken from L4 and L5 dorsal root ganglia 5 days after injury 2-month and 24-month old animals at either day 0 or day 5 after sciatic nerve crush injury.

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