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Single-Cell RT-PCR in Microfluidic Droplets with Integrated Chemical Lysis
Samuel C Kim1, Iain C Clark1, Payam Shahi1
1Department of Bioengineering and Therapeutic Sciences, University of California-San Francisco , San Francisco, California, United States.
Analytical Chemistry
|December 20, 2017
Summary
This study introduces a single-device method for single-cell droplet reverse transcription polymerase chain reaction (RT-PCR). The innovative chemical lysis approach simplifies cell analysis, enhancing speed and reliability for gene expression studies.
Area of Science:
- Biotechnology
- Molecular Biology
- Microfluidics
Background:
- Droplet microfluidics enables single-cell analysis via digital reverse transcription polymerase chain reaction (RT-PCR).
- Existing methods necessitate multiple devices for cell lysis and reagent addition, complicating workflows and increasing failure rates.
Purpose of the Study:
- To develop an integrated, single-device approach for single-cell droplet RT-PCR.
- To streamline the cell lysis and reagent addition process for enhanced efficiency and reliability.
Main Methods:
- Integration of cell lysis and RT-PCR reagent addition into a single microfluidic device.
- Utilizing a high pH buffer for controlled cell lysis and inhibitor inactivation, instantly neutralized by RT-PCR buffer.
- Single-cell isolation and droplet generation for downstream amplification.
Main Results:
- Achieved gene expression analysis of individual cells with data quality comparable to complex multi-step methods.
- Demonstrated a simplified workflow reducing complexity and potential failure points.
- Enabled faster and more reliable single-cell droplet RT-PCR.
Conclusions:
- The integrated single-device approach significantly improves the efficiency and reliability of single-cell droplet RT-PCR.
- This method offers a faster and more robust alternative for analyzing gene expression at the single-cell level.
- The simplified workflow has the potential to broaden the accessibility of single-cell analysis techniques.
