SH-SY5Y Cells

SH-SY5Y cells, a subclone derived from the neuroblastoma cancer cell line SK-N-SH, are a valuable cell model for neurodegenerative disorders such as Parkinson's and Alzheimer's disease. The SK-N-SH cell line was established in 1970 from a biopsy of a metastatic bone tumor from a 4-year-old cancer patient. The human SH-SY5Y cell line offers a unique cell source for functional studies in neurobiology and neurodegenerative disease research. SH-SY5Y cells grow both adherently and in suspension, forming clusters during division that differ significantly from the morphology of differentiated cells. These undifferentiated cells, before undergoing neuronal differentiation, serve as an essential foundation for neuroscientific studies. The neuronal differentiation of SH-SY5Y cells, which transforms them into neuronal cell models resembling various functional neurons, is achieved through biochemical interconversion processes involving gradual serum deprivation, retinoic acid, neurotrophic factors like brain-derived neurotrophic factor, and extracellular matrix proteins. This differentiation is crucial for studying neuronal markers and conducting neurotoxicology research, especially concerning the impact of organic pollutants on human neuron-like cells. The neurobiology of SH-SY5Y neuroblastoma cells, primarily known for their dopaminergic characteristics, can be explored for cholinergic properties under specific differentiation conditions. While these cells may express acetylcholinesterase, indicative of some cholinergic activity, their utility in studying cholinergic neurotransmission is less pronounced compared to their role in dopaminergic system studies. As a neurotoxicological model, the SH-SY5Y neuroblastoma cell line is instrumental in examining the effects of compounds on acetylcholinesterase and butyryl cholinesterase activities, essential for neurotoxicology studies. The sy5y line's contribution to understanding the biochemical pathways involved in neurodegenerative diseases, coupled with its role in the functional studies of dopaminergic and cholinergic systems, underscores its value in neuroscience research.