PLA2G2F supports memory resilience in aging mice, new study reports
Published in Biology, Brain/Neurology, Journals.
Published October 15, 2026.
A study published today in Nature Neuroscience identifies PLA2G2F, a secreted enzyme involved in lipid metabolism, as a potential contributor to cognitive resilience during aging. Cinzia Vicidomini and colleagues investigated its role in hippocampal dentate granule cells.
In mice, deleting Pla2g2f worsened age-associated synapse loss, inflammatory changes and memory impairment. Increasing its expression protected against several of these changes and supported memory. Experiments with human stem-cell-derived microglia also indicated reduced lipid-droplet and cholesterol-ester accumulation in response to neuron-derived PLA2G2F.
Evidence limits: The intervention findings come from mice and cell models. Associations with cognitive resilience in humans do not establish that boosting this enzyme would prevent dementia in people. Delivery, dosing, safety and clinical effectiveness remain open questions.
The new milestone is the peer-reviewed journal publication on October 15, 2026; an earlier version of the work appeared as a preprint in 2024.
Sources: Nature Neuroscience study, October 15, 2026; earlier preprint, 2024.