mRNA Technology Newsletter
Issue #7October 20, 20257 studies

Pink Floyd's "Another Brick in the Wall" increased mRNA delivery to mouse brains by 10x

This week brought some unexpected discoveries in mRNA therapeutics—from sound waves enhancing brain delivery to new vaccine designs that outperform current standards. Here's what caught our attention.

🎵 Music Enhances Brain Drug Delivery by 10-Fold

  • Low-frequency sound (10-250 Hz) increased mRNA expression in brain neurons by 10-fold compared to no sound exposure in mice

  • Pink Floyd's "Another Brick in the Wall" (which contains low frequencies) achieved significantly higher nanoparticle uptake in primary brain cells than other frequency ranges

  • In humans, functional MRI showed that low-frequency sound activated frontal, temporal, and brain regions beyond just auditory areas

Why it matters: This opens a completely non-invasive approach to enhance drug delivery to the brain—potentially transforming treatments for neurological diseases without surgery or invasive procedures.

Key Findings

🦠 New COVID Vaccine Shows Superior Performance

  • DS-5670d vaccine achieved 87.3% immune response rates compared to 82.9% for Pfizer's current vaccine in 725 participants

  • The vaccine worked effectively across all age groups and immune histories—even in people who were never vaccinated or infected before

  • No major safety differences were observed between the new vaccine and the established Pfizer vaccine

💡 This suggests we may soon have even more effective COVID vaccines, particularly important as variants continue to evolve.
🥈 Top 2% journal 🔗 PLoS medicine Randomized Controlled Trial 🗓️ Oct 13

🧬 Computer-Designed Vaccines Outperform Traditional Approaches

  • mRNA vaccines encoding computer-designed protein nanoparticles elicited 5- to 28-fold higher neutralizing antibodies than current spike protein vaccines in mice

  • The nanoparticles displayed 60 copies of viral antigens in an optimized array, mimicking natural virus structure

  • Mice were completely protected from both original COVID strain and Omicron BA.5 variant after vaccination

💡 Computational design may be the key to creating universal vaccines that work against multiple virus variants.
🥇 Top 1% journal 🔗 Science translational medicine Journal Article 🗓️ Oct 15

🎯 New Lipid Design Reduces Liver Accumulation

  • Novel ionizable cholesteryl lipids reduced liver uptake of mRNA by decreasing binding to ApoE proteins that normally target the liver

  • The three-component system improved spleen delivery compared to standard four-component lipid nanoparticles

  • Computer modeling (DiffDock-L) successfully predicted which lipid designs would avoid liver targeting

💡 This could finally enable mRNA drugs to reach organs beyond the liver, expanding treatment possibilities for many diseases.
🥇 Top 1% journal 🔗 Journal of the American Chemical Society Journal Article 🗓️ Oct 13

🔬 HIV Vaccine Strategy Shows Promise Against Multiple Targets

  • Simultaneous delivery of four different mRNA vaccines activated precursor cells for four distinct HIV antibody types without competition between them

  • mRNA delivery outperformed protein-based vaccines in driving immune cell maturation across different doses and precursor frequencies

  • The approach worked even when targeting multiple different sites on the HIV virus envelope simultaneously

💡 This suggests we could develop HIV vaccines that train the immune system to attack the virus from multiple angles at once.
🥇 Top 1% journal 🔗 Science immunology Journal Article 🗓️ Oct 17

🧪 mRNA Modification Prevents Cellular Stress Response

  • N1-methylpseudouridine modification of mRNA prevented cell death and improved protein production in early zebrafish embryos

  • The modification reduced binding to Prkra, a sensor protein that normally triggers cellular stress responses to foreign RNA

  • Modified mRNAs showed significantly better performance in pluripotent cells compared to unmodified versions

💡 This explains why current mRNA vaccines use specific chemical modifications and could improve future mRNA therapies.
🥇 Top 1% journal 🔗 Nucleic acids research Journal Article 🗓️ Oct 16

❄️ Breakthrough in mRNA Storage Stability

  • Adding recombinant ApoE3 protein plus 10% sucrose preserved >90% of mRNA activity after 4 weeks at -80°C and three freeze-thaw cycles

  • Treated samples retained >70% potency for 72 hours at room temperature, far exceeding the ≤12 hour window of current COVID vaccines

  • The approach increased liver expression ~3-fold in mice without causing toxicity or inflammation

💡 This could eliminate cold-chain requirements for mRNA vaccines, making them accessible in remote areas worldwide.
Top 20% journal 🔗 International journal of pharmaceutics Journal Article 🗓️ Oct 16

Implications

These advances suggest mRNA therapeutics are rapidly evolving beyond their pandemic origins. From using sound waves to enhance brain delivery to computer-designed vaccines that outperform current standards, we're seeing the technology mature into a versatile platform that could transform treatment across multiple diseases and global settings.

Studies in this issue

Primary sources used for this newsletter.

  1. Music improves delivery of tiny fat particles and mRNA into brain cells
    main storyJournal of controlled release : official journal of the Controlled Release Society2025-10-15PMID 41093009
  2. Adding ApoE3 protein and sugar protects mRNA lipid nanoparticles during freezing and storage at -80°C
    key findingInternational journal of pharmaceutics2025-10-16PMID 41101606