| CER | ceramide |
| CPEK | canine epidermal keratinocyte progenitor |
| RCE | reconstructed canine epidermis |
| cCER | canine-specific ceramide |
| TEWL | transepidermal water loss |
| SC | stratum corneum |
| AD | atopic dermatitis |
| Pam3CSK4 | Pam3CysSerLys4 |
| ASAH | acid ceramidase |
| SPHK | sphingosine kinase |
| SGPP | sphingosine-1-phosphate phosphatase |
| SPTLC2 | serine palmitoyltransferase long-chain base subunit 2 |
| KDSR | 3-ketodihydrosphingosine reductase |
| DEGS1 | dihydroceramide desaturase-1 |