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Changes in mRNA and small RNA in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

ABSTRACT: Changes in mRNA and small RNA in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

PROVIDER: PRJNA324282 | ENA |

REPOSITORIES: ENA

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Changes in miRNAs in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

Project description:Brain and spinal injury often impair sensorimotor processing in the spinal cord and reduce mobility. We established that complete transection of corticospinal pathways in the pyramids leads to increased spasms, excessive mono- and polysynaptic spinal reflexes and impaired locomotion in rats. Intramuscular neurotrophin-3 treatment at a clinically-feasible time-point after injury reduced these signs of spasticity. We found Neurotrophin-3 reduced spastic movements and improved neurophysiological sensorimotor control. Furthermore, the balance of inhibitory and excitatory synapses in the cord and the level of an ion transporter in motor neuron membranes required for normal reflexes were normalized. We discovered that Neurotrophin-3 is transported in sensory afferents from muscles to the dorsal root ganglia. Using genome-wide small RNA sequencing of the whole cervical level 6-8 dorsal root ganglia, we explored miRNA changes in afferent neurons that were present 10 weeks after bilateral pyramidotomy. Many of the dysregulated genes are involved in axon guidance and plasticity. Intramuscular neurotrophin-3 treatment normalized many of those gene changes and may be one of the mechanisms how reflexes, functional recovery and molecular markers in the spinal cord are restored. This identifies neurotrophin-3 as a therapy that treats the underlying causes of spasticity and not only its symptoms.

2018-05-29 | GSE82196 | GEO

Changes in mRNA in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

Project description:Brain and spinal injury often impair sensorimotor processing in the spinal cord and reduce mobility. We established that complete transection of corticospinal pathways in the pyramids leads to increased spasms, excessive mono- and polysynaptic spinal reflexes and impaired locomotion in rats. Intramuscular neurotrophin-3 treatment at a clinically-feasible time-point after injury reduced these signs of spasticity. We found Neurotrophin-3 reduced spastic movements and improved neurophysiological sensorimotor control. Furthermore, the balance of inhibitory and excitatory synapses in the cord and the level of an ion transporter in motor neuron membranes required for normal reflexes were normalized. We discovered that Neurotrophin-3 is transported in sensory afferents from muscles to the dorsal root ganglia. Using genome-wide RNA sequencing of the whole cervical level 6-8 dorsal root ganglia, we explored mRNA changes in afferent neurons that were present 10 weeks after bilateral pyramidotomy. Many of the dysregulated genes are involved in axon guidance and plasticity. Intramuscular neurotrophin-3 treatment normalized many of those gene changes and may be one of the mechanisms how reflexes, functional recovery and molecular markers in the spinal cord are restored. This identifies neurotrophin-3 as a therapy that treats the underlying causes of spasticity and not only its symptoms.

2018-05-29 | GSE82195 | GEO

Changes in mRNA in the dorsal root ganglion after stroke and subcutaneous neurotrophin-3 infusion in elderly rats

Project description:Brain and spinal injury often impair sensorimotor processing in the spinal cord and reduce mobility. Cortical stroke in rats leads to long-term deficits in dexterity and walking. Subcutaneous neurotrophin-3 infusion initiated at a clinically-feasible time-point after injury improved walking and dexterity. We discovered that Neurotrophin-3 is transported in sensory afferents from muscles to the dorsal root ganglia. Using genome-wide RNA sequencing of the whole cervical level 6-8 dorsal root ganglia, we sought gene changes in afferent neurons that were present at two timepoints after stroke.

2021-02-01 | GSE126059 | GEO

Ribotag analysis of proprioceptive dorsal root ganglion neurons in cell culture

Project description:We analyzed ribosome-associated RNA (raRNA) in dorsal root ganglion neurons in TrkC+ proprioceptive dorsal root ganglion neurons in cell culture.

2018-04-25 | GSE110374 | GEO

RNA-Seq of single cells from the mouse lumbar dorsal root ganglion

Project description:In order to establish a consensus catalog of dorsal rott ganglion cell types, we used comprehensive transcriptome analysis of single cells for unsupervised identification and molecular classification of sensory neurons independent of any a priori knowledge of sensory subtypes. RNA-Seq was performed on 799 dissociated single cells dissected from the mouse lumbar dorsal root ganglion distributed over a total of nine 96-well plates

2014-11-24 | E-GEOD-59739 | biostudies-arrayexpress

Rattus norvegicus

Project description:Changes in mRNA in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

| PRJNA324285 | ENA

Rattus norvegicus

Project description:Changes in miRNAs in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

| PRJNA324284 | ENA

Changes in mRNA in the dorsal root ganglion after stroke and subcutaneous neurotrophin-3 infusion in elderly rats

Project description:Changes in mRNA in the dorsal root ganglion after stroke and subcutaneous neurotrophin-3 infusion in elderly rats

| PRJNA520896 | ENA

Neuronal cell lines as model dorsal root ganglion neurons: a transcriptomic comparison

Project description:Aim: Dorsal root ganglion neuron-derived immortal cell lines including ND7/23 and F-11 cells have been used extensively as in vitro model systems of native peripheral sensory neurons. However, while it is clear that some sensory neuron-specific receptors and ion channels are present in these cell lines, a systematic comparison of the molecular targets expressed by these cell lines with intact peripheral neurons is lacking. Methods: we examined the expression of RNA transcripts in the human neuroblastoma-derived cell line, SH-SY5Y, and two dorsal root ganglion hybridoma cell lines, F-11 and ND7/23, using Illumina next-generation sequencing. Results: The expression profile of these three cell lines did not resemble any specific dorsal root ganglion neuron subclass. The cell lines lacked many markers for nociceptive sensory neurons, such as the transient receptor potential V1 gene, but expressed markers for both myelinated and unmyelinated neurons. Conclusion: This paper provides insights into the receptor repertoire expressed in common dorsal root ganglion neuron-derived cell lines, and illustrates the limits and potentials of these cell lines as tools for neuropharmacological exploration.

2016-05-01 | GSE75811 | GEO

Changes in mRNA and small RNA in the dorsal root ganglion after CNS injury and intramuscular neurotrophin-3 treatment

Project description:This SuperSeries is composed of the SubSeries listed below.

2018-05-29 | GSE82197 | GEO