137896-83-4Relevant academic research and scientific papers
Concise synthesis of the unnatural sphingosine and psychosine enantiomer
Parameswar, Archana R.,Hawkins, Jacqueline A.,Mydock, Laurel K.,Sands, Mark S.,Demchenko, Alexei V.
experimental part, p. 3269 - 3274 (2010/08/19)
The accumulation of psychosine (galactosyl sphingosine) has been associated with the pathogenesis of Krabbe disease; however, the exact mechanism, of its cytotoxicity remains unclear. Herein, we describe the synthesis of the unnatural enantiomer of erythr
Synthesis of fluorescent lactosylceramide stereoisomers
Liu, Yidong,Bittman, Robert
, p. 58 - 69 (2007/10/03)
The intracellular distribution of synthetic glycosphingolipids (GSLs) bearing a fluorophore can be monitored in living cells by fluorescence microscopy. We reported previously that variation in the length of the long-chain base and in the structure of the carbohydrate-containing polar head group of (2S,3R) (or d-erythro-)-β-lactosylceramide (LacCer) did not alter the mechanism of endocytic uptake from the plasma membrane of various mammalian cell types [Singh, R.D., Puri, V., Valiyaveettil, J.T., Marks, D.L., Bittman, R., Pagano, R.E., 2003. Selective caveolin-1-dependent endocytosis of glycosphingolipids. Mol. Biol. Cell 14, 3254-3265]. To extend our examination of the molecular features in LacCer that are responsible for its uptake by the caveolar-requiring endocytic pathway, we have synthesized the three unnatural stereoisomers [(2R,3R)-, (2S,3S)-, and (2R,3S)] of dipyrromethene difluoride (BODIPY)-LacCer. These analogues will be used to probe the role of stereochemistry in the long-chain base of LacCer in the mechanism of endocytic uptake.
