hrp0098p1-312 | Late Breaking 2 | ESPE2024

SGPL1 deficiency is associated with reduced lipid droplet formation and impaired steroidogenesis in Leydig cells

Kwong Ruth , J Smith Chris , Williams Jack , Asif Kanwal , L Hall Charlotte , Casas Josefina , A Metherell Louise , Prasad Rathi

Loss of function mutations in SGPL1 (sphingosine-1-phosphate lyase) are associated with a syndromic form of primary adrenal insufficiency. A third of affected male individuals also have evidence of early primary gonadal insufficiency, with an undervirilised phenotype at birth. SGPL1 carries out irreversible breakdown of the signalling molecule sphingosine-1-phosphate (S1P) and deficiency leads to accumulation of S1P and other upstream sphingolipid intermediates to var...