He has recently identified the role of certain cytokines, most importantly of IL-4, to block apoptosis in cancer cells in an autocrine fashion, i.e. the tumor cell itself provides the apoptosis-inhibitory stimulus by production of IL-4.
Interleukin 4, a cytokine that stimulates the proliferation of activated B-cells
Interleukin 3 | Interleukin 6 | Interleukin 5 | Interleukin 18 | Interleukin 17 | Interleukin 4 | Interleukin 15 | Interleukin 8 | Interleukin 32 | Interleukin 24 | Interleukin 2 | Interleukin 12 | interleukin 6 (IL-6) | Interleukin-3 receptor | Interleukin 22 | Interleukin 13 | Interleukin 12 receptor, beta 2 subunit | Interleukin 10 |
(Equivalent defining cytokines for other cells include IL-4 for Th2 cells and IL-17 for Th17 cells.)