The abstract is read at the publisher; the summary is JClub's.
TRIM32 forms stress-responsive cytoplasmic granules that promote TDP-43 inclusion formation and amyloid aggregation, with pathogenic UBQLN2 mutation exacerbating the aggregation.
- Why it matters: ALS/FTLD and related disorders share TDP-43 pathology, but a shared molecular pathway linking aggregation across diseases is unclear.
- What they did: The study shows TRIM32 granules, distinct from stress granules, are driven by TRIM32 E3 ligase activity with UBQLN2 and p62/SQSTM1, forming condensates that scaffold clients like TDP-43 and ANXA11.
- The result: TRIM32 granules selectively retain clients via a TRIM32 hydrophobic loop and UBQLN2 STI1–mediated competitive binding, co-localize with phospho-TDP-43 inclusions in diverse neurodegenerative brains, and enhance TDP-43 amyloid aggregation.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.