Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Screen of traumatic brain injury-associated genes from lncRNA m6A-modified transcriptomes in the cerebral cortex of mice after repetitive mild traumatic brain injury

ABSTRACT: Screen of traumatic brain injury-associated genes from lncRNA m6A-modified transcriptomes in the cerebral cortex of mice after repetitive mild traumatic brain injury

PROVIDER: PRJNA1212210 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Screen of traumatic brain injury-associated genes from lncRNA m6A-modified transcriptomes in the cerebral cortex of mice after repetitive mild traumatic brain injury

Project description:N6-methyladenosine (m6A), a prevalent post-transcriptional modification in eukaryotic RNA, plays a significant role in regulating sensory experiences, learning, and injury in the mammalian central nervous system. However, the pattern of lncRNA m6A methylation in the mouse cortex following repetitive mild traumatic brain injury (rmTBI) has not been explored. This study conducted a genome-wide analysis of lncRNA m6A methylation in the mouse cortex using methylated RNA immunoprecipitation sequencing (MeRIP-Seq). Our analysis revealed 43,103 peaks were significantly upregulated or downregulated. Notably, the expression of m6A peaks indicated altered methylation and expression levels of 423 lncRNAs after rmTBI. In addition, employing METTL3 inhibitor STM2457 demonstrated that functional METTL3 was essential for repairing neural damage caused by rmTBI and influenced spatial learning and memory in rmTBI-model mice. Thus, the m6A methylation pattern of lncRNA in the mouse cortex after rmTBI identifies METTL3 as a potential intervention target for epigenetic modification following such injuries.

2025-01-22 | GSE287356 | GEO

Time-dependent changes of microglial exosomal miRNAs expression signatures following repetitive mild traumatic brain injury

Project description:Time-dependent changes of microglial exosomal miRNAs expression signatures following repetitive mild traumatic brain injury

| PRJNA553337 | ENA

Gene expression profiles after traumatic brain injury

Project description:Time dependent-profiles in the gene expression level following lateral moderate fluid percussion injury in the rat brain We used microarray to elucidate relationship between the alteration of gene expression levels and the progression of brain damages following traumatic brain injury. To examine the levels of gene expression in the early phase of traumatic brain injury, we analyzed the gene expression at 3, 6, 12, and 48 h after trauma using the lateral moderate fluid percussion TBI model. The ratios of the gene expression level were compared between chips corresponding to the 3, 6 and 12 h fluid percussion groups and the sham group chips. On the other hand, the rations of gene expression level after 48 h FPI were compared with 48 h sham chip, because the gene expression levels of 48 h sham chip were distinct from sham group chips (3, 6 and 12 h) in the cluster and principal components analyses.

2010-12-07 | E-GEOD-24047 | biostudies-arrayexpress

Gene expression profiles after traumatic brain injury

2010-12-07 | GSE24047 | GEO

Repetitive mild closed head injury in adolescent mice is associated with impaired proteostasis, neuroinflammation, and tauopathy

Project description:Repetitive mild traumatic brain injury (mTBI) in children and adolescents leads to acute and chronic neurological sequelae and is linked by epidemiological data to later life neurodegenerative disease. However, the biological mechanisms connecting early life mTBI to neurodegeneration remain unknown. Using an adolescent mouse repetitive closed head injury (CHI) model that induces progressive cognitive impairment in the absence of overt histopathology, we examined transcriptional and translational changes in neurons isolated from sham and injured brain in the chronic phase after injury. At 14 months, single nuclei RNA sequencing of cortical brain tissue identified disruption of genes associated with neuronal proteostasis in injured mice. Western blot analysis of neurons isolated by immunopanning showed evidence of inflammasome activation, accumulation of misfolded, hyperphosphorylated Tau, and changes in expression of proteins suggestive of impaired translation. Compared to injured wild type, injured interleukin-1 receptor 1 knockout mice, which are protected from post-injury cognitive deficits, had reduced microgliosis and decreased accumulation of pro-interleukin-1 beta and misfolded tau in cortex and cerebellum at six months. Taken together, our findings provide evidence for neuronal inflammasome activation and impaired proteostasis as key mechanisms linking repetitive mTBI in adolescence to later life neurological dysfunction and neurodegeneration.

2021-05-01 | GSE167942 | GEO

Profiling the neuroimmune cascade in 3xTg mice exposed to successive mild traumatic brain injuries

Project description:Repetitive mild traumatic brain injuries (rmTBI) sustained within a window of vulnerability can result in long term cognitive deficits, depression, and eventual neurodegeneration associated with tau pathology, amyloid beta plaques, gliosis, and neuronal and functional loss. However, we have limited understanding of how successive injuries affect the brain to result in these devastating long-term consequences. In the current study, we addressed the question of how repeated injuries affect the brain in the acute phase of injury (<24hr) by exposing the 3xTg-AD mouse model of tau and amyloid beta pathology to successive (1x, 3x, 5x) once-daily weight drop closed-head injuries and quantifying transcription at 30min, 4hr, and 24hr after each injury.

2024-05-17 | GSE226838 | GEO

Neurons and glial cells acquire a senescent signature after repeated mild traumatic brain injury in a sex-dependent manner

Project description:This study compared gene expression signatures between mice with repeated mild traumatic brain injury (rmtbi) and sham controls.

2022-10-29 | GSE216586 | GEO

The dentate gyrus after traumatic brain injury [miRNA]

Project description:Analysis of the dentate gyrus of traumatic brain injury model. Results provide insight into the molecular mechanism underlying TBI.

2017-02-25 | GSE86614 | GEO

The dentate gyrus after traumatic brain injury [mRNA]

Project description:Analysis of the dentate gyrus of traumatic brain injury model. Results provide insight into the molecular mechanism underlying TBI.

2017-02-25 | GSE86579 | GEO

Chronic Gene Expression after Traumatic Brain Injury

Project description:Chronic Gene Expression after Traumatic Brain Injury

| PRJNA437082 | ENA