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C24:1 dihydro 1-Deoxyceramide (m18:0/24:1) is a very long-chain atypical ceramide containing a 1-deoxysphinganine (m18:0) backbone. 1-Deoxysphingolipids are formed when serine palmitoyltransferase condenses palmitoyl-CoA with alanine instead of serine during sphingolipid synthesis.^1,2 C24:1 dihydro 1-Deoxyceramide (m18:0/24:1) has been found as a major 1-deoxyceramide species in mouse embryonic fibroblasts (MEFs) following application of 1-deoxysphinganine alkyne or 1-deoxysphinanine-d₃.³

C24:1 Dihydro 1-deoxyceramide (m18:0/24:1) (C24:1 Deoxy dihydroceramide) is a lipid molecule, which is composed of a long-chain fatty acid (24:1) and a 1-deoxysphingoid backbone. Deoxyceramide accumulates under the conditions of obesity and type 2 diabetes (T2D). Deoxyceramide is unable to be further metabolized to more complex sphingolipid, and is toxic when accumulates in the body. Deoxyceramide increases in differentiated adipocytes in vitro[1].

1. Steiner, R., Saied, E.M., Othman, A., et al. Elucidating the chemical structure of native 1-deoxysphingosine J. Lipid Res. 57(7),1194-1203(2016).
2. Alecu, I., Othman, A., Penno, A., et al. Cytotoxic 1-deoxysphingolipids are metabolized by a cytochrome P450-dependent pathway J. Lipid Res. 58(1),60-71(2017).
3. Alecu, I., Tedeschi, A., Behler, N., et al. Localization of 1-deoxysphingolipids to mitochondria induces mitochondrial dysfunction J. Lipid. Res. 58(1),42-59(2017).