Recurrent<i>de-novo gain-of-function</i>mutation in<i>SPTLC2</i>confirms dysregulated sphingolipid production to cause juvenile amyotrophic lateral sclerosis

Abstract

Specific <i>gain-of-function</i> mutations in both core subunits affect the homoeostatic control of SPT. <i>SPTLC2</i> represents a new Mendelian ALS gene, highlighting a key role of dysregulated sphingolipid synthesis in the pathogenesis of juvenile ALS. Given the direct interaction of SPTLC1 and SPTLC2, this knowledge might open new therapeutic avenues for motor neuron diseases.