Nemo-like kinase disrupts nuclear import and drives TDP43 mislocalization in ALS.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40553568.
- Also identified by DOI 10.1172/JCI188138 and PMC identifier 12404744.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Cytoplasmic transactive response DNA-binding protein 43 (TDP43) mislocalization and aggregation are pathological hallmarks of amyotrophic lateral sclerosis (ALS). However, the initial cellular insults that lead to TDP43 mislocalization remain unclear. In this study, we demonstrate that nemo-like kinase (NLK) - a proline-directed serine-threonine kinase - promotes the mislocalization of TDP43 and other RNA-binding proteins by disrupting nuclear import. NLK levels were selectively elevated in neurons exhibiting TDP43 mislocalization in tissues from patients with ALS, and genetic reduction of NLK reduced toxicity in human neuron models of ALS. Our findings suggest that NLK is a promising therapeutic target for neurodegenerative diseases.
Medical subject headings
- Amyotrophic Lateral Sclerosis
- DNA-Binding Proteins
- Protein Serine-Threonine Kinases
- Intracellular Signaling Peptides and Proteins
- Cell Nucleus