Sphingolipid metabolism (in epithelial barrier repair)

"Epithelial barrier repair via sphingolipid production" is not a single molecule or receptor but rather refers to the collective role of **sphingolipids**—a class of bioactive lipids—in maintaining and repairing the integrity of epithelial barriers such as skin and lung tissue. Key enzymes in this process include serine-palmitoyl transferase and ceramide synthases. Sphingolipids like ceramides are essential for forming the lipid matrix that underpins epidermal permeability; their deficiency leads to delayed or impaired barrier recovery after injury. Altered sphingolipid metabolism is implicated in diseases such as atopic dermatitis—where reduced ceramide content correlates with increased inflammation—and various pulmonary conditions where they regulate vascular permeability and immune responses. While drugs can modulate this pathway experimentally or therapeutically by inhibiting key enzymes or supplementing with exogenous ceramides, "epithelial barrier repair via sphingolipid production" itself is not a discrete therapeutic target but describes a biological process involving multiple molecular targets within the broader context of lipid metabolism[1][2][3].

Other names

Sphingolipid biosynthesisSphingolipid pathwayCeramide synthesisS1P pathway

Inhibition of sphingolipid synthesis delays epithelial barrier recovery