SYN1 and neuroblastoma: To examine the effect of LP on neuronal cell differentiation, cultured murine neuroblastoma N2a cells were treated with LP and LC at 10 mM for 24 h, followed by analysis of neuronal markers (i.e., β-tubulin III and phospho-synapsin I (Ser62–67)) by immunocytochemical (ICC) and WB analyses.