简介：
Overview
This article presents a protocol for subtractive patterning of live cell monolayers using a microfluidic probe (MFP). The method allows for local and selective lysis of adherent cells, facilitating downstream molecular profiling studies.
Key Study Components
Area of Science
- Neuroscience
- Cell Biology
- Microfluidics
Background
- Cell patterning is essential for studying cell-to-cell interactions.
- Traditional methods often involve lengthy protocols.
- The MFP technology offers a rapid and efficient alternative.
- Optimization of MFP parameters is crucial for stable experiments.
Purpose of Study
- To develop a method for generating spatially defined cell patterns.
- To enable real-time modifications of cell patterns.
- To facilitate in-situ spatiotemporal analysis of cellular interactions.
Methods Used
- Utilization of a microfluidic probe for local lysis of cells.
- Preparation of cell monolayers on chamber slides.
- Optimization of MFP parameters for hydrodynamic flow confinement.
- Visual demonstrations to illustrate the procedure.
Main Results
- Successful generation of defined cell patterns using MFP.
- Real-time modification of patterns demonstrated.
- Efficient local lysis of cells achieved.
- Protocol allows for downstream analysis of cell lysates.
Conclusions
- The MFP-based patterning technique is rapid and effective.
- It provides a valuable tool for studying cell interactions.
- Future applications may enhance understanding of cellular dynamics.
What is the main advantage of using MFP technology?
The main advantage is the nearly instantaneous patterning capability, allowing for real-time modifications.
How are the cell monolayers prepared?
Cells are cultured in T-flasks, trypsinized, and seeded onto chamber slides.
What is the purpose of the cell-tracker dye?
The dye is used for visualization of cells during the patterning process.
What is hydrodynamic flow confinement?
It is a technique that localizes liquids using simultaneous injection and aspiration.
How does the MFP ensure coplanarity with the substrate?
Coplanarity is achieved by adjusting the tilt of the probe head using a goniometer.
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