High-Throughput Isolation of Cell Protrusions with Single-Cell Precision for Profiling Subcellular Gene Expression

Area of Science:

• Cell Biology
• Molecular Biology
• Cancer Research

Background:

• Cancer cell migration and invasion are guided by cell protrusions.
• Analyzing molecular mechanisms within single cell protrusions is challenging.
• Understanding subcellular localization is key to metastasis.

Purpose of the Study:

• To develop a microfluidic platform for high-throughput isolation of single cell protrusions.
• To enable molecular and gene expression analysis of isolated cell protrusions.
• To investigate subcellular mechanisms driving cancer metastasis.

Main Methods:

• Development of a novel microfluidic platform for cell protrusion isolation.
• Generation of uniform cell-protrusion arrays from various cell types.
• Single-cell precision isolation of protrusions for RNA sequencing (RNA-Seq).
• Validation using quantitative real-time PCR (RT-qPCR) and RNA fluorescence in situ hybridization (RNA FISH).

Main Results:

• Demonstrated efficient generation of over 5000 cell-protrusion arrays.
• Achieved high-purity isolation of cell protrusions at single-cell resolution.
• Successfully profiled subcellular gene expression using RNA-Seq.
• Validated findings with RT-qPCR and RNA FISH.

Conclusions:

• The developed microfluidic platform enables precise isolation of cell protrusions for molecular analysis.
• This technology provides a new approach to study subcellular mechanisms in cancer metastasis.
• Facilitates deeper understanding of signaling pathways involved in cancer cell invasion.