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Single cell RNA sequencing of rat lung tissues to characterize blast exposure-induced cell heterogeneity

ABSTRACT: Single cell RNA sequencing of rat lung tissues to characterize blast exposure-induced cell heterogeneity

PROVIDER: PRJNA1062809 | ENA |

REPOSITORIES: ENA

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Single cell RNA sequencing of rat lung tissues to characterize blast exposure-induced cell heterogeneity

Project description:Coal mining carries inherent risks of catastrophic gas explosions capable of inflicting severe lung injury. Using a rat model, we explored mechanisms underlying alveolar epithelial damage and repair following a gas explosion. By performing scRNA-sequencing, we revealed that alveolar epithelial cells exhibited the most profound transcriptomic changes after gas explosion compared to other pulmonary cell types.

2024-01-18 | GSE252844 | GEO

GNPS - Quantifying Cell Heterogeneity and Subpopulations Using Single Cell Metabolomics

Project description:We combined the Single-probe single cell MS(SCMS) experimental technique with a bioinformatics software package, SinCHet-MS (Single Cell Heterogeneity for Mass Spectrometry), to characterize changes of tumor heterogeneity, quantify cell subpopulations, and prioritize the metabolite biomarkers of each subpopulation.

2023-06-15 | MSV000092178 | GNPS

Gene expression in rat brain 6 weeks after blast exposure

Project description:Analysis of gene expression changes in rat brain of rats exposed to blast overexpression 6 weeks after blast exposure

2023-01-01 | GSE209992 | GEO

Blast wave effect on brain proteome (rat hippocampus)

Project description:These data show differences in up- and down-regulation for protein abundances in the hippocampus of double blast vs. sham rats. Tandem mass tags (TMT)-MS results showed 136 up-regulated and 94 down-regulated proteins between the two groups. These TMT-MS findings revealed changes never described before in blast studies. In the absence of behavioral changes, these proteomic data further support the existence of an asymptomatic blast-induced molecular altered status (ABIMAS) associated with specific protein changes in the rat hippocampus.

| MSV000092956 | MassIVE

Axonopathy precedes cell death in ocular damage mediated by blast exposure

Project description:Traumatic brain injuries (TBI) of varied types are common across all populations and can cause visual problems. For military personnel in combat settings, injuries from blast exposures (bTBI) are prevalent and arise from a myriad of different situations. To model these diverse conditions, we are one of several groups modeling bTBI using mice in varying ways. Here, we report a refined analysis of retinal ganglion cell (RGC) damage in male C57BL/6J mice exposed to a blast-wave in an enclosed chamber. Ganglion cell layer thickness, RGC density (BRN3A and RBPMS immunoreactivity), cellular density of ganglion cell layer (hematoxylin and eosin staining), and axon numbers (paraphenylenediamine staining) were quantified at timepoints ranging from 1 to 17-weeks. RNA sequencing was performed at 1-week and 5-weeks post-injury. Earliest indices of damage, evident by 1-week post-injury, are a loss of RGC marker expression, damage to RGC axons, and increase in glial markers expression. Blast exposure caused a loss of RGC somas and axons-with greatest loss occurring by 5-weeks post-injury. While indices of glial involvement are prominent early, they quickly subside as RGCs are lost. The finding that axonopathy precedes soma loss resembles pathology observed in mouse models of glaucoma, suggesting similar mechanisms.

2024-08-14 | GSE274793 | GEO

Quantifying Cell Heterogeneity and Subpopulations Using Single Cell Metabolomics

2023-06-15 | MSV000092178 | MassIVE

Gene expression in rat brain 6 weeks after blast exposure

Project description:Gene expression in rat brain 6 weeks after blast exposure

| PRJNA863281 | ENA

Moderate blast exposure alters gene expression and levels of amyloid precursor protein

Project description:Objective: Blast induced traumatic brain injuries are a signature injury of recent war campaigns; yet little is known about the biological mechanisms underlying blast exposures. Methods: In a group of military personnel (N = 69), prior to, and on each day of a blast training program (10 days total), blood was collected; throughout training, blast exposure measures were detected by helmet sensors to determine the mean peak pressure in pounds per square inch (psi). On day 7, some participants (n= 29) sustained a moderate blast (mean peak pressure = 7.9 psi) and were matched to participants with no/low blast exposure during the training (n = 40). Results: RNA-seq identified 1,803 dysregulated genes, including 746 up-regulated genes and 1,058 down-regulated genes following a moderate blast exposure. The IPA showed the APP gene network to be most dysregulated following blast, with an IPA network score of 43. Real-time qPCR was used to validate the expression changes for four genes 4 genes, namely: amyloid precursor protein (APP), amyloid precursor-like protein 2 (APLP2), nicastrin (NCSTN) and NEDD8 Activating Enzyme E1 Subunit 1 (NAE1) and significant dysregulation of these genes was confirmed (p = 0.00083476, p = 0.000105, p = 0.000673 and p = 0.043145, respectively). Conclusions: Moderate blast exposure results in a signature biological profile that includes acute APP reductions, followed by genetic expression increases and normalization of APP levels; these changes likely influence neuronal recovery.

2019-11-15 | GSE89866 | GEO

Axonopathy precedes cell death in ocular damage mediated by blast exposure

Project description:Axonopathy precedes cell death in ocular damage mediated by blast exposure

| PRJNA1148067 | ENA

Project description:Male Long Evans rats aging 10-12 weeks were exposed to repeated blast overpressure and then went through behavioral tests for anxiety and fear conditioning. After 1-1.5 months (sub-acute) or 12-13 months (chronic), amygdala tissue specimens from all animals were collected. RNA-seq was used to measure transcriptome-wide gene expression of sham and blast animals at different timepoints. The study identified changes in the amygdalar transcriptome and associated anxiety-related phenotypic outcomes related to both blast exposure and aging, which may play a role in the long-term pathological consequences of mTBI.

2020-08-24 | GSE155393 | GEO

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