Researchers at Biohub, led by Daniel Zongjie Wang, PhD, and Shana O. Kelley, PhD, have identified a three-amino acid supplement—methionine, arginine, and serine—that significantly enhances the efficacy of lipid nanoparticles (LNPs) in mRNA delivery and CRISPR gene editing. This straightforward addition can boost mRNA delivery by up to 20-fold and increase CRISPR editing efficiency from approximately 25% to nearly 90% after a single dose. The key innovation lies in improving cellular uptake rather than modifying the nanoparticles themselves, which has been the focus of previous research efforts.

The findings underscore the importance of cellular metabolic conditions in the effectiveness of LNPs. Traditional laboratory environments often do not replicate the nutrient-poor conditions of the human body, resulting in a stark reduction in LNP uptake. By supplementing with the identified amino acids, the researchers were able to enhance the cellular pathways that facilitate LNP absorption, leading to dramatic improvements in therapeutic outcomes. In animal models, the combination of the amino acids with LNPs resulted in a 100% survival rate in a liver failure model, compared to just 33% with LNPs alone, and significantly elevated therapeutic protein levels.

This discovery has significant implications for the future of mRNA therapies and gene editing. By providing a simple, scalable solution that can be integrated into existing LNP formulations, this approach could accelerate the translation of mRNA and CRISPR technologies into clinical settings. The ease of application and the use of readily available amino acids position this strategy as a practical enhancement to current therapeutic modalities, potentially transforming treatment paradigms for a range of diseases.

Source: sciencedaily.com