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TLR5 expression marks brain boarder associated macrophage

GSE253365 Mus musculus Expression profiling by high throughput sequencing 4 samples Submitted 2026/01/01 Platform GPL24247
Summary
Bacterial meningitis poses a significant threat to prenatal and newborn babies, resulting in a high number of infant deaths worldwide. Infants, with their underdeveloped adaptive immunity, rely on brain macrophages to defend against pathogenic infections. However, the precise characteristics and functions of brain macrophages during the neonatal period remain incompletely understood, necessitating further investigation. Our research initially explores the expression of cell surface Toll-like receptors on brain macrophages in neonatal mice. By utilizing flow cytometry, RNA-seq and immune fluorescence staining, we have uncovered that TLR5 specifically expressed on BAMs but not microglia. Furthermore, our study reveals that priming TLR5 with its ligands enhances the survival rate of neonatal mice when confronted with bacterial meningitis, possibly through recruiting innate immune cells such as monocytes and neutrophils.
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Also filed as BioProject PRJNA1065416 and SRA study SRP484024. Searching any of these in the dataset finder brings you back here.

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