All modalities of neurological behavior measurement of ischemic rats receiving the specific IGF1R inhibitor (PPP) or CXCR4-Ab (mAb 173) injection in U-IGF1R+ hDSC-implanted group showed almost no recovery similar to that of the vehicle control after cerebral ischemia (Fig. 4a–c). The gene discussed is CXCR4; the disease is Cerebral ischemia.