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Cell confluency analysis on microcarriers by micro-flow imaging.

Christopher J Farrell1, Stephanie M Cicalese2, Harrison B Davis3

  • 1Vaccine Analytical Development, Merck & Co., Inc., 770 Sumneytown Pike, West Point, PA, 19486, USA. christopher.farrell@merck.com.

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|May 16, 2016
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Summary
This summary is machine-generated.

Microcarrier cell culture enhances vaccine production by increasing surface area. Micro-flow imaging (MFI) analyzes cell growth and confluency on microcarriers, enabling better process decisions.

Keywords:
ConfluencyMammalian cell cultureMicro-flow ImagingMicrocarriers

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Area of Science:

  • Biotechnology
  • Cell Culture Technology
  • Vaccine Production

Background:

  • Bioreactor surface area limits productivity for anchorage-dependent cell cultures.
  • Microcarriers offer increased surface area for cell growth in suspension cultures.
  • Understanding cell kinetics on microcarriers is crucial for successful microcarrier-based cell culture.

Purpose of the Study:

  • To investigate the kinetics of cell growth on microcarriers.
  • To evaluate micro-flow imaging (MFI) for assessing cell coverage and confluency.
  • To develop an automated algorithm for faster analysis of cell coverage.

Main Methods:

  • Utilized micro-flow imaging (MFI) to capture and analyze images of cells on microcarriers.
  • Performed manual classification of MFI images for cell coverage and confluency.
  • Developed an automated cell coverage algorithm for high-throughput analysis.

Main Results:

  • MFI provided size distribution and defect frequency data for microcarrier lots.
  • Manual image classification yielded actionable data for in-process decision-making.
  • The automated algorithm significantly increased analysis speed and throughput.

Conclusions:

  • Micro-flow imaging is a powerful tool for characterizing microcarriers and assessing cell growth.
  • Automated analysis of cell coverage on microcarriers enhances process control and efficiency.
  • Optimized cell growth monitoring on microcarriers is key for improving vaccine production.