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Cell adhesion is  an essential aspect of multicellularity. While stable cell interactions usually occur between cells of the same type, transient cell interactions occur between cells of different tissue types, such as between neutrophils and endothelial cells. Selectins are one class of cell adhesion molecules (CAMs) that bind carbohydrate ligands to form transient cell adhesion. They are rod-like proteins with a long extracellular part of variable length ending with the lectin domain,...
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Lectins in Cervical Screening.

Anita Ww Lim1,2, André A Neves3, Sarah Lam Shang Leen4

  • 1Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK.

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This summary is machine-generated.

Wheat germ agglutinin (WGA) shows potential for cervical cancer screening. This lectin binds less to high-grade cervical disease (CIN3), offering a visual method for detection in low-resource settings.

Keywords:
cervical cancerglycanslectinsscreening

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Area of Science:

  • Biochemistry
  • Oncology
  • Pathology

Background:

  • Cervical screening is crucial, especially in low-resource settings where needs are unmet.
  • Lectins, sugar-binding proteins, exhibit altered binding patterns in cancerous tissues.
  • These binding changes can differentiate between normal and dysplastic cervical tissue.

Purpose of the Study:

  • To investigate lectins for visual cervical screening.
  • To explore lectin-based detection of high-grade cervical intraepithelial neoplasia (CIN3).

Main Methods:

  • Lectin histochemistry on fixed cervical tissue (normal and CIN3).
  • Visual assessment of lectin binding intensity.
  • Macroscopic validation using near-infrared fluorescence imaging on fresh cervix samples.

Main Results:

  • Wheat germ agglutinin (WGA) and Helix pomatia agglutinin (HPA) showed decreased binding to CIN3 versus normal tissue.
  • WGA demonstrated significantly weaker binding in CIN3 compared to normal tissue in both biopsy and whole specimen analyses.
  • Macroscopic validation confirmed reduced WGA signal intensity in high-grade disease.

Conclusions:

  • Lectin histochemistry and fluorescence imaging show proof-of-principle for visual cervical screening.
  • Wheat germ agglutinin (WGA) holds potential as a probe for detecting high-grade cervical disease.
  • This lectin-based approach could aid cervical screening in resource-limited environments.