Transcription profiling of skin excised from thermal injured mouse to investigate the molecular mechanism of murine dermal burn wound.
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
SUBMITTER: Robert Joseph Feezor
PROVIDER: E-GEOD-460 | biostudies-arrayexpress |
REPOSITORIES: biostudies-arrayexpress
Similar Datasets
Project description:Investigation into murine dermal burn wound. Mouse thermal injury induced, and skin excised at 0 hours, 2 hours, 3 days and 14 days post-injury. Keywords: other
2003-06-23 | GSE460 | GEO
Project description:Thermal injury incites inflammatory responses that often transcend the local environment and lead to structural deficiencies in skin that give way to scar formation. We hypothesized that extensive perturbations within burned skin following thermal insult and during subsequent events of wound repair induce vast alterations in gene expression that likely serve as a wound and systemic healing deterrent. A high-throughput microarray experiment was designed to analyze genetic expression patterns and identify potential genes to target for therapeutic augmentation or silencing. The study compares gene expression from burn wound margins at various times following thermal injury to expression observed in normal skin. Utilizing this design, we report that the totality of gene expression alterations is indeed enormous. Further, we observed that the differential expression of many inflammatory and immune response genes appear to be continually up-regulated in burn wound margins seven days or more after initial thermal insult. As it is well established that the inflammatory process must abate for wound healing to proceed, the finding of ongoing local inflammation is cause for further investigation. To our knowledge, this is the first report of the gene expression alterations induced by thermal injury of human skin. As such, it provides a wealth of data to mine with the ultimate goal of better understanding the local pathophysiologic changes at the site of thermal injury that not only affect wound healing capacity, but may also contribute to systemic derangements within the burn patient. Keywords: time course, disease state analysis The study compares gene expression from burn wound margins at various times following thermal injury to expression observed in normal skin. All skin specimens were obtained in the operating room within minutes of being removed from the patient. Burn specimens were taken from wound margins. Harvested tissue at the burn wound margin maximized the capture of viable cells from the multiple lineages important to the healing process and minimized the inclusion of non-viable cells destroyed by full-thickness injury. After isolation, RNA samples were pooled equally by mass as to contain RNA from 5 tissue specimens for each array replicate.
2010-05-22 | E-GEOD-8056 | biostudies-arrayexpress
Project description:Thermal injury incites inflammatory responses that often transcend the local environment and lead to structural deficiencies in skin that give way to scar formation. We hypothesized that extensive perturbations within burned skin following thermal insult and during subsequent events of wound repair induce vast alterations in gene expression that likely serve as a wound and systemic healing deterrent. A high-throughput microarray experiment was designed to analyze genetic expression patterns and identify potential genes to target for therapeutic augmentation or silencing. The study compares gene expression from burn wound margins at various times following thermal injury to expression observed in normal skin. Utilizing this design, we report that the totality of gene expression alterations is indeed enormous. Further, we observed that the differential expression of many inflammatory and immune response genes appear to be continually up-regulated in burn wound margins seven days or more after initial thermal insult. As it is well established that the inflammatory process must abate for wound healing to proceed, the finding of ongoing local inflammation is cause for further investigation. To our knowledge, this is the first report of the gene expression alterations induced by thermal injury of human skin. As such, it provides a wealth of data to mine with the ultimate goal of better understanding the local pathophysiologic changes at the site of thermal injury that not only affect wound healing capacity, but may also contribute to systemic derangements within the burn patient. Keywords: time course, disease state analysis
2010-05-23 | GSE8056 | GEO
Project description:Burn wound blister fluid is a valuable matrix for understanding the biological pathways associated with burn injury. In this study, 152 blister fluid samples collected from paediatric burn wounds at two different hospitals were analysed using mass spectrometry proteomic techniques. The protein abundance profile at different days post-burn indicated that there were more proteins associated with cellular damage/repair in the first 24 hours, whereas after this point there were more proteins associated with antimicrobial defence and inflammation. The inflammatory proteins persisted at a high level in the blister fluid for more than 7 days. This may indicate that removal of burn blisters prior to two days post-burn is optimal to prevent excessive or prolonged inflammation in the wound environment. Additionally, many proteins associated with the neutrophil extracellular trap (NET) pathway were increased post-burn, further implicating NETs in the post-burn inflammatory response. NET inhibitors may therefore be a potential treatment to reduce post-burn inflammation and coagulation pathology and enhance burn wound healing outcomes.
2024-03-04 | PXD050003 | Pride
Project description:Infections of burn wounds, especially those caused by Pseudomonas aeruginosa, could trigger sepsis or septic shock, which is the main cause of death after burn injury. Compared with traditional saline-wet-to-dry dressings, negative pressure wound therapy (NPWT) is more effective for the prevention and treatment of wound infections. However, the mechanism by which NPWT controls infection and accelerates wound healing remains unclear. Accordingly, in this study, the molecular mechanisms underlying the effects of NPWT were explored using a murine model of P. aeruginosa-infected burn wounds. NPWT significantly reduced P. aeruginosa levels in wounds, enhanced blood flow, and promoted wound healing. Additionally, NPWT markedly alleviated wound inflammation and increased the expression of wound healing–related molecules. Recent evidence points to a role of circular RNAs (circRNAs) in wound healing; hence, whole-transcriptome sequencing of wound tissues from NPWT and control groups was performed to evaluate circRNA expression profiles.
2022-01-14 | GSE193428 | GEO
Project description:Pseudomonas aeruginosa strain:burn wound | isolate:burn wound Genome sequencing
| PRJNA753640 | ENA
Project description:Burn injuries are devastating traumas, often leading to life-long consequences that extend beyond the observable burn scar. Burn injury patients commonly develop chronic neurological disorders but the long-lasting impacts of burn injuries on neurons and glia in the brain is unknown. Whole transcriptome RNA-sequencing from cortical excitatory neurons, inhibitory neurons, astrocytes and microglia showed very few changes to the expression of genes with known functions five weeks following a non-severe burn injury in adult mice. However, genes related to GABA-A receptors in excitatory neurons and several cellular functions in microglia was found to be to differentially expressed in burn injured mice. These findings shed light on the long-term effect of burn injuries on the brain and may help identify potential therapeutic targets and windows to prevent neurological dysfunction in burn patients.
2024-02-15 | GSE229384 | GEO
Project description:These samples comprise the full analysis of liver function during response to thermal injury. Experiment Overall Design: - 4 analysis days Experiment Overall Design: - three samples per day Experiment Overall Design: - burn (experimental) Experiment Overall Design: - sham (control) Experiment Overall Design: - all arrays were run as competitive (dual channel) Experiment Overall Design: - Affymerix Rat RAE230A arrays
2008-06-14 | E-GEOD-5647 | biostudies-arrayexpress
Project description:Animal experiments were performed with male Sprague-Dawley rats (Charles River Laboratories, Boston, MA) weighing 150 ? 200 grams. All experimental protocols used in this study were approved by the Subcommittee on Research Animal Care, Massachusetts General Hospital. Rats were individually housed in a temperature-controlled (25oC) and light-controlled room (12h light-dark cycle) and allowed to adjust to their new surroundings for at least 5 days prior to the experiment. Water and rat chow were provided ad libitum to the animals. On the day of the treatment, the animals were randomly divided into two groups, burned and sham-burned. The burn injury consisted of a full-skin-thickness scald burn of the dorsum, calculated to be ~ 20% of the rat?s total body surface area (TBSA), induced by immersing the designated area in boiling water for 10 s (45). Rats were resuscitated with an intra-peritoneal injection of sterile saline solution (1.5 mL/Kg body weight/% TBSA) immediately after burn. The mortality rate of this treatment was negligible. At each time point (1, 2, 4, and 7d), three animals belonging to each group were sacrificed, the liver and serum collected, and stored at ?80oC after being inflicted with 20% TBSA burn injury. Sham-burn rats (n=3) considered as the control were treated identically except that they were immersed into a 37oC water bath and immediately sacrificed to collect the livers. Keywords = Burn Liver microarray genechip time course Keywords: time-course
2005-10-11 | GSE1860 | GEO