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Differential gene expression following SCI in trkB.T1 null

ABSTRACT: We asked what genes are significantly differentially regulated in the spinal cord of SCI trkB.T1 WT and trkB.T1 KO mice. TrkB.T1 is upregulated shortly after SCI although the precise mechanisms underyling this upregulation are poorly understood. In the trkB.T1 null, we show less mechanical allodynia and better locomotor recovery following SCI. The microarray studies helped us to elucidate a signaling pathway that is differently regulated in the WT versus KO mice at 1 day after SCI. In this study, we did not examine gene changes within a genotype after SCI. Rather, we examined DGE by genotype at each time point.

ORGANISM(S): Mus musculus

PROVIDER: GSE42828 | GEO | 2015/12/07

SECONDARY ACCESSION(S): PRJNA183531

REPOSITORIES: GEO

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Differential gene expression following SCI in trkB.T1 null

Project description:We asked what genes are significantly differentially regulated in the spinal cord of SCI trkB.T1 WT and trkB.T1 KO mice. TrkB.T1 is upregulated shortly after SCI although the precise mechanisms underyling this upregulation are poorly understood. In the trkB.T1 null, we show less mechanical allodynia and better locomotor recovery following SCI. The microarray studies helped us to elucidate a signaling pathway that is differently regulated in the WT versus KO mice at 1 day after SCI. In this study, we did not examine gene changes within a genotype after SCI. Rather, we examined DGE by genotype at each time point. Spinal cord tissue from WT and KO mice in a sham condition (intact spinal cord) versus 1D, 3D and 7D following SCI was harvested for microarray analyses.

2015-12-07 | E-GEOD-42828 | biostudies-arrayexpress

Mus musculus

Project description:trkB.T1 WT versus trkB.T1 KO expression data following spinal cord injury (SCI)

| PRJNA207104 | ENA

Molecular responses in skeletal muscles following spinal cord injury and the effect of locomotor training

Project description:Spinal cord injury (SCI) is one of the most disabling health problems facing adults today. Locomotor training has been shown to induce substantial recovery in muscle size and muscle function in both transected and contusion injury animal models of SCI. The overall objective of this study is to implement genome wide expression profiling of skeletal muscle to define the molecular pathways associated with muscle remodeling after SCI and during locomotor training (TM). We profiled rat soleus of total 36 samples including controls; 3, 8 and 14 days after SCI; 8 and 14 days after SCI with locomotor treadmill training (TM).

2015-06-30 | E-GEOD-45550 | biostudies-arrayexpress

Mus musculus

Project description:Differential gene expression following SCI in trkB.T1 null

| PRJNA183531 | ENA

Drug combination sci-Plex Data

Project description:Drug combination sci-Plex Data

| PRJNA851906 | ENA

Escherichia coli SCI-07

Project description:Escherichia coli SCI-07 Genome sequencing and assembly

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Gene expression profiles in the spinal cord below the lesion level and influence of treadmill locomotor training

2013-11-27 | GSE52763 | GEO

Molecular responses in skeletal muscles following spinal cord injury and the effect of locomotor training

2015-06-30 | GSE45550 | GEO

Gene expression profiles in the spinal cord below the lesion level and influence of treadmill locomotor training

Project description:Traumatic spinal cord injury (SCI) often leads to loss of locomotor function. Neuroplasticity of spinal circuitry underlies some functional recovery and therefore represents a therapeutic target to improve locomotor function following SCI. However, the cellular and molecular mechanisms mediating neuroplasticity below the lesion level are not fully understood. The present study performed a gene expression profiling in the rat lumbar spinal cord at 1 and 3 weeks after contusive SCI at T9 compared to control rat that received sham injury (laminectomy). The below-level gene expression profiles were compared with those of animals that were subjected to treadmill locomotor training. Rat lumbar spinal cords were taken for the microarray analysis at 1 and 3 weeks after contusive spinal cord injury at the T9 level. Another group of rats received treadmill locomotor training for 3 weeks, and theirs spinal cords were harvested for the microarray. The changes in gene expression after spinal cord injury were analyzed at the two time points. The influence of treadmill locomotor training was evaluated by comparing gene expression profiles between animals with or without treadmill training.

2013-11-27 | E-GEOD-52763 | biostudies-arrayexpress

Astrocyte morphogenesis is dependent on BDNF signaling via astrocytic TrkB.T1

Project description:Astrocytic morphogenesis and maturation are critical steps in CNS development. The time window of astrocyte morphological development is well defined, but the molecular underpinnings are still unclear. BDNF is a critical growth factor involved in the development of the CNS, including synapse refinement. Here we demonstrate the BDNF receptor at Ntrk2 is enriched in astrocytes relative to all CNS cell populations. RNA sequencing indicates Ntrk2 falls in the top 0.001% of all gene transcripts expressed in juvenile astrocytes, almost exclusively due to truncated TrkB.T1. Astrocyte complexity is increased in the presence of BNDF in vitro, which is dependent upon the presence of TrkB.T1. Furthermore, deletion of TrkB.T1 in vivo revealed astrocytes with significantly reduced volume and branching complexities. Indicating a role for functional astrocyte maturation via BDNF/TrkB.T1 signaling, TrkB.T1 KO astrocytes do not support normal excitatory synaptogenesis. Together, these data suggest a significant role for BDNF/TrkB.T1 signaling in astrocyte morphogenesis and indicate this signaling may contribute to astrocyte regulation of neuronal synapse development.

2019-08-26 | GSE122176 | GEO

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