Amino Acid Mix Boosts mRNA, CRISPR Therapies

Researchers find simple supplement can supercharge lipid nanoparticle delivery in the body

Mar. 12, 2026 at 5:37am

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Researchers at the Biohub have discovered that adding a simple mix of three common amino acids - methionine, arginine, and serine - can dramatically improve the efficiency of lipid nanoparticles (LNPs) in delivering mRNA and CRISPR gene editing payloads. The amino acid supplement boosted mRNA delivery up to 20-fold and lifted CRISPR gene editing from 25% to nearly 90% in a single dose, potentially transforming the outlook for these emerging therapies.

Why it matters

Gene editing and mRNA therapies hold immense promise, but their success has been limited by the challenge of effectively delivering these payloads into cells. This discovery provides a straightforward solution that could make a wide range of mRNA and gene editing treatments substantially more effective, paving the way for breakthroughs in areas like cancer, inflammatory diseases, and genetic disorders.

The details

The researchers found that cells cultured in lab conditions that mimic the body's metabolic environment had a much harder time taking up LNPs compared to standard cell culture media. Further analysis revealed that certain amino acid pathways were suppressed in these physiologically-relevant conditions, hampering the cells' ability to internalize the nanoparticles. By supplementing the LNP formulations with an optimized mix of methionine, arginine, and serine, the team was able to boost mRNA delivery 5- to 20-fold and lift CRISPR gene editing efficiency from around 25% to 85-90% in a single dose, across multiple administration routes and cell types.

  • The study was published on March 11, 2026 in Science Translational Medicine.

The players

Daniel Zongjie Wang

PhD, leads the Spatiotemporal Omics Group at Biohub.

Shana O. Kelley

PhD, president of bioengineering at Biohub and head of Biohub, Chicago.

Biohub

A research institute where scientists are decoding the inflammatory processes that drive a wide range of diseases.

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What they’re saying

“Gene editing and mRNA-based therapies will play increasing roles in the medicine of the future, but they require LNPs to reach and enter cells. Any LNP formulation being developed today could potentially benefit from our approach.”

— Shana O. Kelley, PhD, president of bioengineering at Biohub and head of Biohub, Chicago (Science Translational Medicine)

“By asking why LNPs perform so differently in the physiological milieu of the body, we found a surprisingly simple answer that could make a wide range of mRNA and gene editing therapies substantially more effective.”

— Daniel Zongjie Wang, PhD, leads the Spatiotemporal Omics Group at Biohub (Science Translational Medicine)

What’s next

The researchers plan to further investigate the mechanism behind the amino acid supplement's ability to enhance LNP delivery and explore its potential applications in a range of mRNA and gene editing therapies.

The takeaway

This simple, cost-effective solution to a major challenge in gene-based medicine could unlock the full potential of transformative therapies for cancer, genetic disorders, and other diseases, marking a significant step forward in the field.