Conclusion
Hypoxic preconditioning enhances the survival and oxidative stress resilience of hHFSCs and SH-SY5Y cells, offering potential benefits for central nervous system cell therapy. The differential responses observed emphasize the need for tailored preconditioning strategies for specific cell types. These findings underscore the importance of hypoxic preconditioning and warrant further research into the underlying mechanisms, bringing us closer to effective neurological disorder treatments.
Methods
hHFSCs were isolated from human hair follicles, characterized, and subjected to hypoxia for up to 72 hours. SH-SY5Y cells were similarly preconditioned for up to 72 hours. Cell viability under hypoxic conditions and oxidative stress was assessed. The relative expression of key genes was evaluated using qRT-PCR.
Results
hHFSCs exhibited remarkable resilience to hypoxic conditions, while SH-SY5Y cells displayed lower tolerance. Hypoxic preconditioning improved the viability of both cell types under oxidative stress. HIF1α mRNA was significantly downregulated, and VEGF transcripts increased after preconditioning, suggesting adaptations to prolonged hypoxia.