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Related Concept Videos

Flow Cytometry01:23

Flow Cytometry

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The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
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DNA Flow Cytometry Analysis in Body Cavity Fluids Using Liquid-Based Cytology.

Ayumi Ryu1,2,3, Keiichiro Honma2, Sayoko Tsuzaki1,2

  • 1Department of Clinical Laboratory, Osaka International Cancer Institute, Osaka, Japan.

Diagnostic Cytopathology
|February 26, 2025
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Summary

CelVerse (CeV) preservation solution offers more consistent cell proliferation index (CPIx) results for body cavity fluid cytology using LC-1000 compared to Cellprep (CP). CeV is less affected by SubG1% variations, enhancing diagnostic reliability.

Keywords:
DNAbody cavity fluidsflow cytometryliquid‐based cytology

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Area of Science:

  • Cytopathology
  • Flow Cytometry
  • Biomedical Analysis

Background:

  • DNA flow cytometry with LC-1000 analyzes cellular DNA content and proliferation index (CPIx).
  • Body cavity fluid cytology requires reliable cell preservation solutions for accurate analysis.
  • Evaluating new preservation solutions like CelVerse (CeV) against established ones like Cellprep (CP) is crucial.

Purpose of the Study:

  • To evaluate the performance of body cavity fluid cytology using the LC-1000 system.
  • To compare the efficacy of CelVerse (CeV) as a cell preservation solution against Cellprep (CP).
  • To assess the impact of different preservation solutions on the cell proliferation index (CPIx) and diagnostic accuracy.

Main Methods:

  • Compared 43 body cavity fluid samples in CeV and 59 in CP using LC-1000.
  • Analyzed cell proliferation index (CPIx) in malignant and benign cases for both CeV and CP groups.
  • Assessed the influence of SubG1% on diagnostic performance, measured by area under the curve (AUC).

Main Results:

  • Both CeV and CP showed significant differences in CPIx between malignant and benign cases (p < 0.001).
  • CelVerse (CeV) demonstrated a higher AUC (0.811) compared to Cellprep (CP) (0.776).
  • The difference in SubG1% significantly impacted CP's AUC, while CeV results remained consistent.

Conclusions:

  • Cell proliferation index (CPIx) using LC-1000 in CeV or CP samples is a viable objective indicator for body cavity fluid cytology.
  • CelVerse (CeV) offers more consistent results in body cavity fluid cytology, unaffected by SubG1% variations.
  • CeV shows potential as a superior preservation solution for LC-1000 based body cavity fluid cytology.