The disclosure relates to the field of ischemia and how to increase tissue perfusion in ischemic tissue by cellular therapy. Specifically, the beneficial effects of myeloid (bone marrow-derived) cells with a particular arteriogenic gene expression profile are shown, and it is shown that increased arteriogenesis and perfusion is specifically due to the effects of combined PDGFB and SDF-1. The arteriogenic gene profile of the myeloid cells used for therapy can, for instance, be obtained by inhibition of PHD2.