Locium — Generative AI · High-Throughput Validation
Every cell and gene therapy needs a regulatory element. None are optimized. Locium pairs generative AI with scaled MPRA validation to design synthetic promoters that are specific, compact, durable, and delivery-compatible.
Promoters and enhancers control where, when, and how much a therapeutic gene is expressed. Today's standard elements — CMV, CAG — drive expression broadly, causing off-target toxicity, immune responses, and silencing in vivo. Locium designs the missing layer: synthetic regulatory elements that are cell-type-specific, compact enough for AAV, and durable after delivery.
Expression targeted to the right cell type — reducing off-target toxicity and enabling safer, lower-titre delivery.
Synthetic promoters under 400 bp, preserving precious AAV cargo space for larger therapeutic genes.
Synthetic sequences engineered to resist epigenetic silencing — maintaining therapeutic expression long-term.
Designed for AAV, LNP, and engineered cell therapies — validated across modalities before handoff.
Three integrated pillars — a proprietary knowledge base, generative AI models, and in-house high-throughput validation — create a closed-loop engine for fit-for-purpose regulatory element design.
One of the most comprehensive multi-modal regulatory maps ever built: activity profiles of 3M+ regulatory DNA elements across hundreds of human cell and tissue types, with 800k+ sequences profiled for transcriptional activity. This proprietary dataset is the foundation for all AI training and design.
Epigenomics · MPRA Atlas · Training DataAdvanced AI models — CNN for convolutional sequence features, Transformer for long-range attention context, and Diffusion for generative sequence sampling — generate and score hundreds of thousands of synthetic promoters for any partner-defined target. Built on our CODA and DNA-Diffusion platforms (Nature 2024, Nature Genetics 2026).
DNA-Diffusion · CODA · Generative AIIn-house MPRA technology measures hundreds of thousands of regulatory designs in parallel — across neuron, liver, muscle, immune, and heart systems. Demonstrated cell-type-specific expression in mouse embryo and brain in vivo, and therapeutic proof-of-concept in human leukemia cells.
MPRA · In Vivo · Cell-Type SpecificPartners specify their program needs — we deliver experimentally validated, licensable synthetic regulatory elements ready for therapeutic vector integration.
Define the cell type or tissue, delivery vehicle (AAV, LNP, cell therapy), required expression level, size constraints, and any stimulus-response needs. Partner data and indication-specific systems plug directly into the pipeline.
Our DNA design engine generates hundreds of thousands of synthetic promoter candidates, scoring each for predicted specificity, expression level, compactness, and delivery compatibility — before any wet lab work begins.
Top AI candidates enter our high-throughput MPRA pipeline — functional data from hundreds of thousands of sequences in parallel, returned in weeks. Focused in vivo testing confirms therapeutic-grade leads.
Ranked, experimentally validated hits delivered with full functional data. Partners license field-of-use rights and take the element forward through IND, clinical trials, and commercialization. Locium earns upfront fees, milestones, and royalties.
Locium was built by the scientists who created the field's foundational tools — regulatory atlases, MPRA technology, and AI-driven sequence design. Our team has collectively published the reference datasets, models, and validation methods that the entire gene therapy community relies on.
We partner with pharma, biotech, and academic gene therapy programs across AAV, LNP, and engineered cell therapy modalities. Partners own the IND, clinical trials, and commercialization — Locium earns upfront license fees, development milestones, and royalties.
Whether you're developing a gene therapy programme, exploring a research collaboration, or looking to license synthetic regulatory elements for your therapeutic vector — we'd like to hear from you.