What is the molecular mechanism by which TDP-43 couples mRNA destabilization to neurite exclusion?

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Description

The study shows TDP-43 binding regions mediate both mRNA instability and localization exclusion from neurites, but the mechanistic link between these processes is unclear. Understanding this coupling is critical for determining whether mRNA mislocalization in ALS results from stability changes or direct transport defects.

Gap type: unexplained_observation Source paper: TDP-43 directly inhibits mRNA accumulation in neurites through modulation of mRNA stability. (2026, The EMBO journal, PMID:41398473)

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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