The abstract is read at the publisher; the summary is JClub's.
In early-stage 5xFAD mice, BBB transport is selectively remodeled, with reduced APOA1 and increased SERPINA1 uptake, altering neuroprotective protein delivery to brain cells.
- Why it matters: The BBB is often defined by what it blocks, but the breadth and cell-targeting of normal blood-to-brain protein transport—and how it changes early in Alzheimer’s models—remains unclear.
- What they did: Using bioorthogonal proteomics, the healthy BBB sampled 191 plasma proteins and permitted 92 into brain parenchyma, and receptor hand-off via SR-B1 and ABCA1 was tested in 5xFAD mice.
- The result: Hepatic APOA1 overexpression restored APOA1 in 5xFAD brains and rescued astrocytic, synaptic, and behavioral deficits, implying BBB protein transport remodeling is linked to early disease phenotypes.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.