The present invention relates to novel compounds comprising at most 13 contiguous amino acid residues derived from the fibronectin type 3,11 module of neural cell adhesion molecule (NCAM), or a variant or fragment thereof, capable of interacting with an FGFR and thereby the compounds are capable of inducing differentiation, modulating proliferation, stimulate regeneration, neuronal plasticity or survival of cells. Further, the present invention relates to the use of the compounds for production of a medicament for treatment of conditions and diseases, in which NCAM or FGFR play a prominent role.