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sphingosine

Erythrocyte sphingosine kinase regulates intraerythrocytic development of Plasmodium falciparum

January 21, 2021 - 15:31 -- Open Access
Author(s): 
Sah RK, Pati S, Saini M, Singh S
Reference: 
Sci Rep. 2021 Jan 13;11(1):1257

The sphingolipid pool is key regulator of vital cellular functions in Plasmodium falciparum a causative agent for deadly malaria. Erythrocytes, the host for asexual stage of Plasmodium, are major reservoir for Sphingosine-1-phosphate (S1P). Erythrocyte possesses Sphingosine kinase (SphK) that catalyzed its biosynthesis from sphingosine (Sph). Since, Plasmodium lacks SphK homologous protein it can be envisaged that it co-opts sphingolipids from both intraerythrocytic as well as extracellular pools for its growth and development. Herein, by sphingosine-NBD probing, we report that infected erythrocytes imports Sph from extracellular pool, which is converted to S1P and thereby taken by P. falciparum.

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