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Cell Squeezing as a Robust, Microfluidic Intracellular Delivery Platform
Published on: November 7, 2013
Microdevice-based delivery of gene products using sonoporation
Tung Siu1, Robert Rohling, Mu Chiao
1Department of Mechanical Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
Biomedical Microdevices
|January 5, 2007
Summary
This study demonstrates a miniature device using sonoporation to deliver antisense oligonucleotides (ASO) into cells. This novel approach significantly enhances gene transfection rates in both endothelial and cancer cells, paving the way for improved cancer gene therapy.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Cell Biology
Background:
- Antisense oligonucleotides (ASO) are crucial for gene therapy but require efficient delivery methods.
- Current cell transfection techniques often face limitations in efficiency and specificity.
- Developing microscale devices for targeted gene delivery is an active area of research.
Purpose of the Study:
- To present a proof-of-concept miniature device for antisense oligonucleotide (ASO) delivery.
- To investigate the efficacy of cavitation-induced sonoporation for cell transfection.
- To explore the potential application of this technology in cancer gene therapy.
Main Methods:
- A miniature device utilizing a piezoelectric lead zirconate titanate (PZT) plate was developed.
- Cavitation-induced sonoporation was employed as the transfection mechanism.
- In vitro studies were conducted on human umbilical vein endothelial cells (HUVEC) and human prostate cancer cells (PC3).
Main Results:
- Sonication via the PZT device significantly increased ASO transfection rates.
- HUVEC transfection rates improved by 96% (p < 0.01) compared to controls.
- PC3 cancer cell transfection rates increased by 31% (p < 0.02) compared to controls.
Conclusions:
- The developed miniature device shows promise for efficient ASO delivery using sonoporation.
- This technology offers a potential microelectromechanical system (MEMS)-based solution for cancer gene therapy.
- Further research can optimize this device for clinical applications in targeted gene delivery.
