CellaNexa

2024 Winner

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CellaNexa

CellaNexa is revolutionizing drug delivery with our AI-powered protein engineering platform, designed to harness the unique properties of self-assembling proteins from long terminal repeats (LTR) retrotransposons. The CellaNexa platform expertly identifies these proteins and refines them through advanced machine learning-driven design techniques. They develop protein nanoparticles that excel in targeting ability, payload capacity, immune evasion, and manufacturability, specifically focusing on targeted delivery to brain and cancer tissues."

CellaNexa - range of nanoparticle structures

24 months on

The CellaNexa platform is based on a newly discovered family of protein nanoparticles (the "Atlas" capsids) that self-assemble into hollow shells of tunable size, naturally package RNA, are taken up into cells, and release their cargo once inside. This makes them a promising next-generation delivery vehicle for RNA- and gene-based therapies, including CRISPR, with several advantages over current methods such as lipid nanoparticles and viral vectors: larger cargo capacity, no integration into the patient's genome, scalable manufacturing, and low pre-existing immunity. The attached image (Figure 2b from our paper) shows the range of nanoparticle structures we determined by cryo-electron microscopy,  four capsid sizes, drawn to scale and coloured by radius.

Since the last update [12 months ago], they have reached three milestones:

• They have used the King's prize funding to develop agentic AI tools that facilitate and accelerate our protein design work.

• Their international (PCT) patent application has now been published by the World Intellectual Property Organization (WIPO) and is publicly searchable, WO/2026/083093

• Their scientific manuscript is now available as a preprint on bioRxiv and is sent today to Nature Structural & Molecular Biology.
 

June 2026