Quantification of cellular properties from external fields and resulting induced velocity: cellular hydrodynamic...

Area of Science:

• Biophysics
• Cell Biology
• Image Analysis

Background:

• Accurate cell size distribution is crucial for understanding cell function and disease.
• Traditional methods like Coulter counters have limitations in certain applications.
• Microscopic imaging offers high-resolution data but requires advanced processing for quantitative analysis.

Purpose of the Study:

• To present and validate a novel experimental technique, cell tracking velocimetry (CTV), for determining cell size distribution.
• To compare the efficacy of CTV with a conventional method (Coulter counter) using human lymphocytes and MCF-7 breast cancer cells.

Main Methods:

• Cells were imaged microscopically and recorded on SVHS tape.
• Computer imaging and processing were employed to analyze cell location and velocity.
• A custom algorithm, cell tracking velocimetry (CTV), was developed to calculate settling velocity.

Main Results:

• The CTV technique successfully determined the size distribution of human lymphocytes and MCF-7 cells.
• Experimental data demonstrated comparable results between the CTV approach and the Coulter counter method.
• Settling velocity, derived from CTV, correlated with cell size distribution.

Conclusions:

• Cell tracking velocimetry (CTV) is a viable and effective method for assessing cell size distribution.
• CTV provides a valuable alternative or complementary technique to existing cell analysis methods.
• This technique has potential applications in various fields of cell biology and medical research.