Expression data from the mouse brain after 90'-MCAO and sham-control surgery in: young male mice, young female mice, diabetic young male mice and aged male mice
Ontology highlight
ABSTRACT: Ischemic stroke is a major cause of death and disability worldwide. Translation into the clinical setting of neuroprotective agents showing promising results in pre-clinical studies has systematically failed. One of the reasons that could explain this failure is that the animal models used to test neuroprotectants do not represent properly the population affected by stroke, as the majority of pre-clinical studies are performed in healthy young male mice. In this regard, we aimed to determine if the response to cerebral ischemia differed depending on age, sex and the presence of comorbidities. Thus, we explored proteomic and transcriptomic changes triggered during the hyperacute phase of cerebral ischemia (by transient intraluminal middle cerebral artery occlusion) in the brain of: (1) young male mice, (2) young female mice, (3) aged male mice and (4) diabetic young male mice. Moreover, we compared the proteomic and transcriptomic changes of each group using an integrative enrichment pathways analysis to disclose key common and exclusive altered proteins, genes and pathways in the first stages of the disease. We found 61 differentially expressed genes (DEG) in male mice, 77 in females, 699 in diabetic and 24 in aged mice. Of these, only 14 were commonly dysregulated in all four groups. The enrichment pathways analysis revealed that the inflammatory response was the biological process with more DEG in all groups of animals, followed by hemopoiesis and lymphoid organ development. Our findings indicate that the response to cerebral ischemia regarding proteomic and transcriptomic changes differs depending on the sex, age and comorbidities, highlighting the importance of incorporating these groups of animals in future stroke research studies.
ORGANISM(S): Mus musculus
PROVIDER: GSE196266 | GEO | 2022/11/14
REPOSITORIES: GEO
ACCESS DATA