The role of TDP-43 propagation in neurodegenerative diseases: integrating insights from clinical and experimental studies
2020
Myungjin Jo | Shinrye Lee | Yu-Mi Jeon | Seyeon Kim | Younghwi Kwon | Hyung-Jun Kim
Neurodegenerative disorders: Spread of misfolded protein aggregates Further research is needed to determine how an aggregate-forming protein common to several neurodegenerative disorders propagates throughout the brain. Many neurodegenerative conditions involve aggregates created by ‘prion-like’ proteins, misfolded proteins that can confer their abnormal structure on neighboring healthy proteins, resulting in aggregates which spread rather like an infection. Hyung-Jun Kim at the Korea Brain Research Institute in Daegu, South Korea, and co-workers reviewed current understanding of the transactive response DNA-binding protein 43 (TDP-43), an aggregate-forming protein implicated in disorders such as Alzheimer’s disease and frontotemporal dementia. Growing evidence suggests that TDP-43 may spread in a prion-like fashion. TDP-43 is implicated in the onset of Alzheimer’s, and the spread of misfolded TDP-43 aggregates is closely tied to disease severity. More research is needed into how TDP-43 propagates in different tissues and central nervous system cells.
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