Transfection with nanostructure electro-injection is minimally perturbative.

Area of Science:

• Biotechnology
• Cell Biology
• Nanotechnology

Background:

• Transfection is crucial for gene editing and cell therapies.
• Conventional methods like viral vectors, biochemicals, and electroporation can cause significant cell perturbation.
• The impact of gene delivery methods on post-transfection cell health is not well understood.

Purpose of the Study:

• To develop and evaluate a novel nanoscale gene delivery platform, nano-electro-injection (NEI).
• To compare the transfection efficiency and cell health effects of NEI against conventional methods.
• To assess the implications of different gene delivery techniques on cell behavior and gene expression.

Main Methods:

• Development of the nano-electro-injection (NEI) platform utilizing localized electric fields for DNA delivery.
• Comparison of NEI with viral, biochemical, and electroporation methods in Jurkat cells.
• Analysis of cell doubling time, intracellular calcium levels, and immune-associated gene expression post-transfection.

Main Results:

• NEI achieved twofold higher net transfection efficiency compared to biochemicals and electroporation.
• Viral vectors and electroporation significantly increased cell doubling time (>40%) and cell stress.
• Electroporation, unlike NEI, substantially altered immune-associated gene expression related to cell activation and trafficking.

Conclusions:

• NEI offers a highly efficient and minimally perturbing gene delivery method.
• Nanoscale delivery tools provide significant advantages for cell health in research and therapeutic applications.
• NEI preserves cell function and gene expression profiles better than conventional methods.