Cell Type Receptor Functions
    Chemotaxis Differentiation Effector Responses References
Innate immune cells
Dendritic cells S1PR1 ↑/↔ [13,99,100]
  S1PR2 ND ND ND [13]
  S1PR3 [14,101]
  S1PR4 ND ND ND [13]
  S1PR5 ND ND ND [13]
Eosinophils S1PR1 ND ND [102]
  S1PR2 ND ND ND [102]
  S1PR3 ND ND ND [102]
Macrophages S1PR1 ND ND [103,104]
  S1PR2 ND [104]
Mast cells S1PR1 ND ND [15]
  S1PR2 ND [15,105]
NK cells S1PR5 ND ND [64,106,107]
Neutrophils S1PR1 ND ND [108,109]
Adaptive immune cells
T cells S1PR1 ↑/↓ [76,110]
  S1PR4 ↑/↔ [111,112]
B cells S1PR1 ND ND [113]
  S1PR3 ND ND ND [113]
NKT cells S1PR1 ND ND [107]
  S1PR2 ND ND ND [107]
  S1PR4 ND ND ND [107]
Table 1: S1P receptors and effects on immune cells. (↑) denotes a stimulatory effect on the indicated immune function; (↓) inhibition; (↔) no effect on function; ND indicates that this was not determined. Table adapted from [5].