An Adhesion-Dependent Switch between Mechanisms That Determine Motile Cell Shape
2011

How Adhesion Affects Cell Shape and Movement

Sample size: 200 publication 10 minutes Evidence: high

Author Information

Author(s): Barnhart Erin L., Lee Kun-Chun, Keren Kinneret, Mogilner Alex, Theriot Julie A.

Primary Institution: Stanford School of Medicine

Hypothesis

Adhesion strength influences the shape and migratory behavior of keratocytes.

Conclusion

The study found that keratocyte shape and speed depend on adhesion strength, with distinct behaviors observed at low, intermediate, and high adhesion levels.

Supporting Evidence

  • Keratocytes at intermediate adhesion strengths were fast and fan-shaped.
  • Cells at low adhesion strength were small and round with variable movement.
  • High adhesion strength led to large, asymmetrical cells with traveling waves of protrusion.

Takeaway

Cells change shape and speed based on how sticky their surface is. If it's too sticky or not sticky enough, they don't move well.

Methodology

The researchers modified substrate adhesion properties and observed keratocyte behavior using various adhesion strengths.

Limitations

The study primarily focuses on keratocytes and may not generalize to other cell types.

Participant Demographics

Keratocytes from the scales of Central American cichlid fish.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pbio.1001059

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