Culturing and Manipulation of O9-1 Neural Crest Cells

Area of Science:

• Developmental Biology
• Stem Cell Biology
• Genetics

Background:

• Neural crest cells (NCCs) are multipotent stem cells crucial for development.
• The O9-1 cell line, derived from mouse embryonic NCCs, retains multipotency and is valuable for in vitro research.
• The Hippo signaling pathway, involving Yap and Taz, is implicated in neural crest development.

Purpose of the Study:

• To provide a detailed protocol for culturing O9-1 cells to maintain stemness.
• To establish protocols for differentiating O9-1 cells into specific cell types like smooth muscle cells and osteoblasts.
• To enable gene loss-of-function studies in O9-1 cells using CRISPR-Cas9 and siRNA.

Main Methods:

• Culture of O9-1 mouse embryonic neural crest stem cells.
• Induction of differentiation into smooth muscle cells and osteoblasts.
• Gene editing techniques including CRISPR-Cas9 deletion and small interfering RNA (siRNA) knockdown.

Main Results:

• Established protocols for maintaining O9-1 stemness and inducing differentiation.
• Demonstrated the utility of O9-1 cells for studying neural crest development, including the role of Yap and Taz in craniofacial development.
• Successfully implemented gene loss-of-function studies in O9-1 cells.

Conclusions:

• The O9-1 cell line is a powerful in vitro model for studying neural crest stem cells and their differentiation.
• The provided protocols facilitate research into NCC differentiation and craniofacial development.
• O9-1 cells are amenable to genetic manipulation for functional studies.