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PI3Kg inhibition circumvents inflammation and mortality in SARS-CoV-2 and other infections

GSE255211 Mus musculus Expression profiling by high throughput sequencing 7 samples Submitted 2024/03/12 Platform GPL24247
Summary
Virulent infectious agents such as SARS-CoV-2 and Methicillin Resistant Staphylococcus Aureus (MRSA) induce tissue damage that recruits neutrophils and monocyte/macrophages, leading to T cell exhaustion, fibrosis, vascular leak, epithelial cell depletion, and fatal organ damage. Neutrophils, monocytes and macrophages recruited to pathogen-infected lungs, including SARS-CoV-2 infected lungs, express phosphatidylinositol 3-kinase gamma (PI3K a signaling protein that coordinately controls granulocyte and monocyte trafficking to diseased tissues and immune suppressive, pro-fibrotic transcription in myeloid cells. PI3K deletion and inhibition with the clinical PI3K inhibitor eganelisib promoted survival in models of infectious diseases, including SARS-CoV-2 and MRSA, by suppressing inflammation, vascular leak, organ damage and cytokine storm. These results demonstrate essential roles for PI3K in inflammatory lung disease and support the potential use of PI3K inhibitors to suppress inflammation in severe infectious diseases.
Published in
PI3Kγ inhibition circumvents inflammation and vascular leak in SARS-CoV-2 and other infections
Shepard RM, Ghebremedhin A, Pratumchai I et al. · Science translational medicine 2024 · PMID 38959328 · doi:10.1126/scitranslmed.adi6887
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Also filed as BioProject PRJNA1073955 and SRA study SRP488514. Searching any of these in the dataset finder brings you back here.

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