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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...

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Chromogenic In Situ Hybridization as a Tool for HPV-Related Head and Neck Cancer Diagnosis
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High-content imaging in cervical cancer screening.

Maria Isabel Micalessi1, Gaëlle Boulet, Isabel Pintelon

  • 1Applied Molecular Biology Research (AMBIOR) Group, Laboratory of Cell Biology and Histology, University of Antwerp, Antwerp, Belgium. Isabel.Micalessi@ua.ac.be

Journal of Biomolecular Screening
|September 14, 2012
PubMed
Summary

This study introduces a high-content imaging platform for improved cervical cancer screening. The system simultaneously detects multiple biomarkers, enabling automated identification of dysplastic cervical cells in liquid-based cytology samples.

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Area of Science:

  • Oncology
  • Biotechnology
  • Cell Biology

Background:

  • Conventional cytology has limitations in cervical cancer screening.
  • Molecular approaches offer potential improvements.
  • Simultaneous detection of multiple biomarkers is desirable for enhanced accuracy.

Purpose of the Study:

  • To develop a high-content imaging platform for simultaneous biomarker detection in cervical disease.
  • To optimize a dual ProExC/Ki-67 immunofluorescence staining protocol for liquid-based cytology (LBC) samples.
  • To assess the capability of high-content imaging in detecting dysplastic cervical cells.

Main Methods:

  • Liquid-based cytology (LBC) samples were utilized.
  • A dual ProExC/Ki-67 immunofluorescence staining protocol was optimized for SurePath-fixed cells.
  • Simultaneous and automated biomarker detection was performed using the BD Pathway 435 system.
  • High-content imaging was assessed using spiked keratinocytes and a high-grade squamous intraepithelial lesion (HSIL) LBC sample.

Main Results:

  • The percentages of Ki-67- and ProExC-immunopositive objects showed significant correlation with spiked SiHa cells.
  • Dysplastic cells within the HSIL LBC sample were successfully detected via high-content cell analysis.
  • The platform demonstrated the ability for simultaneous and automated detection of biomarkers.

Conclusions:

  • High-content imaging provides a viable method for simultaneous and automated detection of ProExC- and Ki-67-immunopositive dysplastic cells in LBC specimens.
  • This approach has the potential to enhance cervical cancer screening protocols.