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Title: New fluorogenic probes for neutral and alkaline ceramidases
Author: Casasampere Ferrer, Mireia
Bielsa, Núria
Riba, Daniel
Bassas, Laura
Xu, Ruijuan
Mao, Cungui
Fabriàs Domingo, Gemma
Abad Saiz, José Luis
Delgado Cirilo, Antonio
Casas Brugulat, Josefina
Keywords: Esfingolípids
Síntesi orgànica
Organic synthesis
Issue Date: 27-Mar-2019
Publisher: American Society for Biochemistry and Molecular Biology
Abstract: New fluorogenic ceramidase substrates derived from the N-acyl modification of our previously reported probes (RBM14) are reported. While none of the new probes were superior to the known RBM14C12 as acid ceramidase substrates, the corresponding nervonic acid amide (RBM14C24:1) is an efficient and selective substrate for the recombinant human neutral ceramidase, both in cell lysates and in intact cells. A second generation of substrates, incorporating the natural 2-(N-acylamino)-1,3-diol-4-ene framework (compounds RBM15) is also reported. Among them, the corresponding fatty acyl amides with an unsaturated N-acyl chain can be used as substrates to determine alkaline ceramidase (ACER)1 and ACER2 activities. In particular, compound RBM15C18:1 has emerged as the best fluorogenic probe reported so far to measure ACER1 and ACER2 activities in a 96-well plate format. Keywords: ceramides; sphingolipids; substrate; umbelliferone.
Note: Reproducció del document publicat a:
It is part of: Journal of Lipid Research, 2019, vol. 60, num. 6, p. 1174-1181
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ISSN: 0022-2275
Appears in Collections:Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica)

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