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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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Related Experiment Video

Updated: Dec 3, 2025

Techniques for the Analysis of Extracellular Vesicles Using Flow Cytometry
09:39

Techniques for the Analysis of Extracellular Vesicles Using Flow Cytometry

Published on: March 17, 2015

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Bead-Based Extracellular Vesicle Analysis Using Flow Cytometry.

Katherine S Yang1,2, Hsing-Ying Lin1, Caleigh Curley1

  • 1Center for Systems Biology, Massachusetts General Hospital, Boston, MA, 02114, USA.

Advanced Biosystems
|October 26, 2020
PubMed
Summary
This summary is machine-generated.

A new bead-based assay enables rapid, robust analysis of extracellular vesicles (EVs) using flow cytometry. This method advances high-throughput cancer biomarker detection in clinical settings.

Keywords:
biomarkersdiagnosisextracellular vesiclesflow cytometrypancreatic cancer

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Clinical Diagnostics

Background:

  • Extracellular vesicles (EVs) are crucial circulating biomarkers for cancer detection.
  • Current high-throughput analysis of EVs is hindered by a lack of simple, fast, and robust assays.
  • Standardized and efficient methods are needed for clinical applications.

Purpose of the Study:

  • To develop and validate a novel bead-based assay for high-throughput extracellular vesicle (EV) analysis.
  • To integrate EV capture and protein analysis for rapid biomarker detection.
  • To assess the assay's utility in analyzing pancreatic cancer biomarkers.

Main Methods:

  • A bead-based assay utilizing microbeads for EV capture.
  • Detection and analysis of EV proteins via flow cytometry.
  • Assay validation using plasma samples from pancreatic cancer patients.

Main Results:

  • The developed assay provides fast (<4 hours for 48 samples) and robust EV analysis.
  • The method is compatible with conventional flow cytometry instruments.
  • Successfully identified a panel of pancreatic cancer biomarkers in patient-derived EVs.

Conclusions:

  • The bead-based flow cytometry assay offers a flexible and adaptable solution for high-throughput EV analysis.
  • This assay is readily translatable to other cancer types and biomarkers.
  • The method supports diverse research and clinical needs with standard materials and equipment.