Neuronal development / K.M. Giehl -- Organization of peripheral nerves in skin, musculoskeletal system, and viscera / M. von Düring, B. Fricke -- Neurotransmitter receptor-mediated signaling pathways as modulators of carcinogenesis / H.M. Schuller -- Neuronal markers in non-neuronal tissues / C. Hagel, D. Stavrou -- Chemotropic axon guidance molecules in tumorigenesis / A. Chédotal -- Neoneurogenesis and the neuro-neoplastic synapse / D. Palm, F. Entschladen -- Neurotransmitter effects on tumor cells and leukocytes / K. Lang, P. Bastian -- Stem cells and neurogenesis in tumors / J.A. Varner -- Potential inhibition of the neuro-neoplastic interactions: the clue of a GPCR-targeted therapy / J.-M. Muller -- The neuro-neoplastic synapse: does it exist? / K.S. Zänker