Fluorescence-based rapid measurement of sphingosine-1-phosphate transport activity in erythrocytes[S]
Sphingosine-1-phosphate (S1P) is present in the blood plasma and acts as a pivotal intercellular signal transmitter in the immune system by recruiting lymphocytes from good news candy the thymus and secondary lymphoid tissues.The plasma S1P concentration is maintained by the supply of S1P from erythrocytes.Previously, we showed that S1P release fro