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Related Experiment Video

Updated: Mar 6, 2026

Imaging Molecular Adhesion in Cell Rolling by Adhesion Footprint Assay
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Mapping cell surface adhesion by rotation tracking and adhesion footprinting.

Isaac T S Li1, Taekjip Ha1,2, Yann R Chemla1

  • 1Department of Physics and Center for Physics of Living Cells, University of Illinois at Urbana-Champaign, 1110 W Green St., Urbana, IL, 61801, USA.

Scientific Reports
|March 15, 2017
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Summary

Researchers mapped cell surface adhesion during rolling, a key process in inflammation and metastasis. They discovered adhesion is non-uniformly distributed in patches, offering new insights into cell behavior.

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Area of Science:

  • Cell biology
  • Biophysics
  • Biomaterials

Background:

  • Rolling adhesion is crucial for inflammatory responses and cancer metastasis.
  • Adhesion receptors and membrane tethers regulate cell rolling, with molecules concentrated at tether tips.
  • The global distribution of functional adhesion properties on cell surfaces remains largely unknown.

Purpose of the Study:

  • To develop and apply novel methods for determining the spatial distribution of adhesive properties on rolling cell surfaces.
  • To investigate the functional and molecular distribution of cell adhesion during rolling.

Main Methods:

  • Developed a label-free technique using dark-field imaging and particle tracking to analyze individual rolling cell rotation.
  • Constructed cell surface adhesion maps based on rotational motion analysis.
  • Utilized a fluorescent adhesion footprint assay to record molecular adhesion events.

Main Results:

  • Adhesion was found to be non-uniformly distributed in distinct patches on the surfaces of human promyelocytic leukemia cells.
  • Successfully mapped the spatial distribution of adhesive properties on individual rolling cells.
  • Combined label-free and fluorescent methods provided a quantitative picture of cell surface adhesion.

Conclusions:

  • Cell surface adhesion during rolling is spatially heterogeneous, occurring in distinct patches.
  • The developed label-free adhesion mapping techniques are versatile and applicable to various cell types undergoing rolling adhesion.
  • These methods offer a quantitative understanding of cell surface adhesion at both functional and molecular levels.