Non-viral approaches in CAR-NK cell engineering: connecting natural killer cell biology and gene delivery

Area of Science:

• Immunology
• Biotechnology
• Cancer Research

Background:

• Natural Killer (NK) cells show promise for cancer immunotherapy due to their innate cytotoxicity.
• Chimeric Antigen Receptor (CAR)-NK cell therapy offers advantages over T cell-based approaches.
• Safety, cost, and scalability concerns with viral vectors drive interest in non-viral gene delivery methods.

Purpose of the Study:

• To comprehensively review recent advancements and challenges in non-viral genetic modification of NK cells for allogeneic CAR-NK therapies.
• To analyze non-viral alternatives, such as electroporation and nanoparticles, for CAR expression and translational outcomes.
• To bridge the understanding between NK cell biology and drug delivery technology design for future non-viral approaches.

Main Methods:

• Analysis of recent literature on non-viral gene delivery techniques for NK cells.
• Interrogation of electroporation and multifunctional nanoparticles for CAR expression.
• Evaluation of translational responses and challenges associated with non-viral CAR-NK engineering.

Main Results:

• Non-viral methods are emerging as viable alternatives to viral vectors for CAR-NK cell development.
• Electroporation and nanoparticles demonstrate potential for efficient CAR expression in NK cells.
• Key challenges remain in optimizing these non-viral approaches for clinical translation.

Conclusions:

• Non-viral genetic modification holds significant potential for advancing CAR-NK cell immunotherapies.
• Further research integrating NK cell biology with delivery technologies is crucial for realizing therapeutic potential.
• This review offers insights into the current landscape of non-viral CAR-NK engineering for improved cancer treatment.