The abstract is read at the publisher; the summary is JClub's.
Single-cell proteomics of FACS-sorted mouse microglia across hippocampus and prefrontal cortex identifies a state-specific microglial phagoproteome, revealing distinct phagocytic preferences during aging.
- Why it matters: Single-cell proteomic heterogeneity in aging microglia has been hard to measure, limiting understanding of how microglial states shift at the protein level.
- What they did: The authors optimized a label-free single-cell proteomics workflow using Orbitrap Astral MS and profiled young, middle-aged, and aged mice, generating 3,085 single cells with an average of 1,153 protein groups per cell.
- The result: They uncovered spatiotemporal proteomic heterogeneity and defined a phagoproteome linked to specific microglial states, then verified phagocytic preferences with imaging, enabling study of state transitions during aging.
The findingWhy it mattersWhat they didThe result
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