FPR1 and glioblastoma: In addition, studies that investigated the functional effects of FPRs in glioblastoma multiforme showed that the activation of FPR1 by the chemotactic peptide ligand N-formyl-methionyl-leucyl-phenylalanine (f-MLF), affects glioblastoma cell migration and survival, which suggest that FPR1 may contribute to tumor progression and metastasis22,23.