NCIt definition : An orally bioavailable sphingosine-1-phosphate (S1P) receptors 1 (S1PR1, S1P1) and
5 (S1PR5, S1P5) modulator, with potential anti-inflammatory and immunomodulating activities.
Upon oral administration, ozanimod selectively targets and binds to S1PR1 on lymphocytes
and induces S1PR1 internalization and degradation. This results in the sequestration
of lymphocytes in lymph nodes. By preventing egress of lymphocytes, ozanimod reduces
both the amount of circulating peripheral lymphocytes and the infiltration of lymphocytes
into target tissues. This prevents a lymphocyte-mediated immune response and may reduce
inflammation. S1PR1, a G-protein coupled receptor, plays a key role in lymphocyte
migration from lymphoid tissues. Modulation of S1PR5 by ozanimod may be neuroprotective.;