Figure 1From: Platelet-derived sphingosine 1-phosphate induces migration of Jurkat T cellsMeasurement of platelet-derived S1P. Chromatograms of the calibration standard lipids, i.e., C17-S1P (internal standard) and S1P (A) and absence of C17-S1P (B). Chromatogram of the supernatant from activated platelets from a healthy volunteer (C). Peaks 1 and 2 represent C17-S1P and S1P, respectively.Back to article page