Cell Death and Differentiation
Cell Death and Differentiation
5 years ago

Exploring the genetics and non-cell autonomous mechanisms underlying ALS/FTLD

Exploring the genetics and non-cell autonomous mechanisms underlying ALS/FTLD
Steve W. S. Han, Susan C. Su, Mark W. Kankel, Hongbo Chen, Dimitry Ofengeim
Although amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig’s disease, was first described in 1874, a flurry of genetic discoveries in the last 10 years has markedly increased our understanding of this disease. These findings have not only enhanced our knowledge of mechanisms leading to ALS, but also have revealed that ALS shares many genetic causes with another neurodegenerative disease, frontotemporal lobar dementia (FTLD). In this review, we survey how recent genetic studies have bridged our mechanistic understanding of these two related diseases and how the genetics behind ALS and FTLD point to complex disorders, implicating non-neuronal cell types in disease pathophysiology. The involvement of non-neuronal cell types is consistent with a non-cell autonomous component in these diseases. This is further supported by studies that identified a critical role of immune-associated genes within ALS/FTLD and other neurodegenerative disorders. The molecular functions of these genes support an emerging concept that various non-autonomous functions are involved in neurodegeneration. Further insights into such a mechanism(s) will ultimately lead to a better understanding of potential routes of therapeutic intervention.

Publisher URL: https://www.nature.com/articles/s41418-018-0060-4

DOI: 10.1038/s41418-018-0060-4

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