How do dynamic UBQLN2 aggregates mechanistically promote cytoplasmic TDP-43 accumulation?

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Description

The authors observe that UBQLN2 aggregates promote TDP-43 cytoplasmic accumulation but don’t explain whether this occurs through direct protein interactions, sequestration of clearance machinery, or other mechanisms. This is critical for understanding ALS pathogenesis convergence.

Gap type: unexplained_observation Source paper: Ubiquilin-2 drives NF-κB activity and cytosolic TDP-43 aggregation in neuronal cells. (2015, Molecular brain, PMID:26521126)

Evidence summary

Resolved by hypothesis h-ccc05373: p38α Inhibitor and PRMT1 Activator Combination to Restore Physiological TDP-43 Phosphorylation-Methylation Balance. Score: 0.879. Supporting PMIDs: 39817908, NCT05869669, 39817908, NCT05869669, 39817908.

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