A study links disrupted neuronal Wnt activity to TDP-43 changes in ALS
Original source
Physiological regulation of neuronal Wnt activity is essential for TDP-43 localization and function. (opens in a new tab)Compass summarised this from the study's abstract.
Study details
- Studied in
- Human, Mouse, Cells
Related topics
Researchers found that loss of GDE2, an enzyme involved in regulating Wnt signaling, caused sustained Wnt activity in adult neurons. In their models, this was associated with impaired transport into the nucleus, nuclear pore abnormalities and TDP-43 being excluded from the nucleus. The researchers also reported related GDE2 and Wnt abnormalities in ALS postmortem tissue and human neural cell models.
Why this matters
The findings suggest that abnormal Wnt signaling may contribute to TDP-43 changes in ALS. This is laboratory and postmortem research, so it does not yet change treatment or show that targeting Wnt signaling benefits people with ALS.
Limitations and context
This is a single primary research study. Its experiments used neuronal and human neural cell models, alongside postmortem tissue, rather than a treatment trial in people. The study does not establish that Wnt-targeting treatment is safe or effective for ALS.