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Updated: May 31, 2026

14:36
Combining QD-FRET and Microfluidics to Monitor DNA Nanocomplex Self-Assembly in Real-Time
Published on: August 26, 2009
Light-directed delivery of nucleic acids.
Sigurd Bøe1, Lina Prasmickaite, Birgit Engesæter
1Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Montebello, Oslo, N-0310, Norway. Sigurd.Boe@rr-research.no
Methods in Molecular Biology (Clifton, N.J.)
|July 13, 2011
Summary
This study introduces photochemical internalization (PCI) for targeted gene therapy. PCI uses light to release nucleic acids into cells, overcoming delivery barriers for treatments like tumor therapy.
Area of Science:
- Biotechnology
- Molecular Biology
- Therapeutic Delivery
Background:
- Non-viral gene therapy faces challenges in specific delivery to target cells.
- Effective delivery is crucial for therapeutic strategies, including tumor therapy.
Purpose of the Study:
- To describe a protocol for light-directed delivery of nucleic acids.
- To address the limitations of current gene delivery methods.
Main Methods:
- Utilizing photochemical internalization (PCI) technology.
- Employing a photosensitizing compound that targets endocytic membranes.
- Using light to induce endocytic membrane damage and release nucleic acids into the cytosol.
Main Results:
- Demonstrated a method for site-specific delivery of nucleic acids.
- Enabled release of endocytosed nucleic acids into the cytosol.
Conclusions:
- Photochemical internalization offers a promising strategy for targeted gene delivery.
- This approach enhances the potential of non-viral gene therapy for various applications.

