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A potential inhibitory function of draxin in regulating mouse trunk neural crest migration
Sanbing Zhang1, Yuhong Su2, Jinbao Gao3
1Department of Hand and Foot Surgery, The Third Hospital of Shijiazhuang City, 15 South Tiyu Street, Shijiazhuang, 050000, People's Republic of China. zhangsanfeng80@hotmail.com.
In Vitro Cellular & Developmental Biology. Animal
|September 22, 2016
Summary
Draxin protein inhibits mouse trunk neural crest cell migration by altering their actin cytoskeleton and reducing cell polarization. This guidance protein is crucial for neural development and spinal cord formation.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Draxin is a known repulsive axon guidance protein.
- It plays a role in forming commissures in the central nervous system and dorsal interneuron 3 (dI3) in chick spinal cords.
Purpose of the Study:
- To investigate the expression pattern of mouse draxin in the embryonic mouse trunk spinal cord.
- To understand the role of draxin in mouse trunk neural crest cell migration.
Main Methods:
- Analysis of mouse draxin expression in embryonic spinal cord.
- In vitro treatment of mouse trunk neural crest cells with draxin.
- Assessment of cell migration length, cell polarity, and actin cytoskeleton.
Main Results:
- Draxin significantly reduced the net migration length of mouse trunk neural crest cells.
- Increased draxin exposure led to a higher proportion of apolar neural crest cells.
- Draxin induced actin cytoskeleton rearrangement in migrating neural crest cells.
Conclusions:
- Draxin regulates mouse trunk neural crest cell migration.
- This regulation occurs via actin cytoskeleton rearrangement and reduced cell polarization.
- Draxin is a key factor in neural crest cell guidance during embryonic development.
