Abstract
Neural stem cells (NSCs) are characterized by their potential for self-renewal and ability to differentiate into neurons, astrocytes, and oligodendrocytes. They are of great value to scientific studies and clinical applications. Culturing NSCs in vitro is important for characterizing their properties under controlled environmental conditions that may be modified and monitored accurately. The present study explored a modified, detailed and efficient protocol for the isolation, culture and cryopreservation of rat embryonic NSCs. In particular, the viability, nestin expression, and self-renewal and multi-differentiation capabilities of NSCs cryopreserved for various periods of time (7 days, or 1, 6 or 12 months) were characterized and compared. Rat embryonic NSCs were successfully obtained and maintained their self-renewal and multipotent differentiation capabilities even following long-term cryopreservation (for up to 12 months).
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