Long-term culture of SH-SY5Y neuroblastoma cells in the absence of neurotrophins: a novel model of neuronal ageing

Lisa Strother, Gareth Brian Miles, Alison Ruth Holiday, Ying Cheng, Gayle H. Doherty*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)
75 Downloads (Pure)

Abstract

Background
Studying human ageing is of increasing importance due to the worldwide ageing population. However, it faces the challenge of lengthy experiments to produce an ageing phenotype. Often, to recreate the hallmarks of ageing requires complex empirical conditions that can confound data interpretation. Indeed, many studies use whole organisms with relatively short life spans, which may have little, or limited, relevance to human ageing. There has been extensive use of cell lines to study ageing in human somatic cells, but the modelling of human neuronal ageing is somewhat more complex in vitro.

New Method

We cultured the well-characterised SH-SY5Y human neural cell line to produce high purity cultures of cells differentiated to express a neuronal phenotype, and designed a protocol to maintain these cells in culture until they accumulated biomarkers of cellular ageing.

Results
Our data validate a novel and simple technique for the efficient differentiation and long-term maintenance of SH-SY5Y cells, expressing markers of neuronal differentiation and demonstrating electrical activity in culture. Over time in vitro, these cells progressively accumulate markers of ageing such as enhanced production of reactive oxygen species and accumulation of oxidative damage.

Comparison to Existing Methods
In comparison to existing techniques to model neuronal ageing our method is cost effective, requiring no specialist equipment or growth factors.

Conclusions
We demonstrate that SH-SY5Y cells, grown under these culture conditions, represent a simple model of neuronal ageing that is amenable to cell biological, biochemical and electrophysiological investigation.
Original languageEnglish
Article number109301
JournalJournal of Neuroscience Methods
Volume362
Early online date31 Jul 2021
DOIs
Publication statusPublished - 1 Oct 2021

Keywords

  • Ageing
  • Culture
  • Mitochondria
  • Neuroblastoma
  • Neuronal network
  • Oxidative stress

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