Studying Chemotactic Migration in Dunn Chamber: An Example Applied to Adherent Cancer Cells

Area of Science:

• Cell Biology
• Cancer Research
• Biophysics

Background:

• Cell migration is essential for development but implicated in diseases like cancer metastasis.
• Chemotaxis, or directed cell movement along chemical gradients, is crucial for tumor cell dissemination.
• Existing in vitro methods for studying chemotaxis, like endpoint assays, have limitations.

Purpose of the Study:

• To describe a detailed time-lapse imaging protocol for studying chemotactic cell motility.
• To enable the analysis of cancer cell behavior in response to chemoattractant gradients.
• To provide a versatile protocol adaptable for various cell lines and experimental conditions.

Main Methods:

• Utilized time-lapse microscopy in a Dunn chemotaxis chamber.
• Tracked T47D human breast cancer cell line motility towards Heregulin β1 gradients.
• Developed a protocol for generating large-volume, image-based data.

Main Results:

• The protocol allows for detailed tracking of cell migration in response to chemoattractants.
• It facilitates the analysis of cancer cell behavior, morphology, and polarity.
• The method is adaptable to various cell types and experimental setups.

Conclusions:

• Time-lapse microscopy offers a powerful approach to study chemotaxis in vitro.
• The described protocol provides a robust method for investigating cancer cell motility.
• This technique can be applied to study drug treatments and cell polarity changes.