IN VIVO GENE EDITING

Advancing Gene Editing
Toward a One-Time Cure
for LGMD2B/R2

ACGENE Lab is developing an in vivo therapeutic platform that integrates
LNP-based prime editing (PE) with next-generation gene-editing technologies

Understanding LGMD2B/R2

A genetic disease
A muscle repair challenge

LGMD2B/R2 is a form of dysferlinopathy caused by disease-causing variants in the DYSF gene. This gene provides instructions for producing dysferlin, a protein that plays an essential role in repairing damage to the membrane surrounding muscle cells.

Without sufficient functional dysferlin, damaged muscle-cell membranes cannot be repaired effectively. Repeated cycles of muscle contraction can therefore lead to progressive muscle-fiber damage, inflammation, and muscle weakness. Our research focuses on correcting the underlying genetic variants and restoring dysferlin function to support normal muscle-cell membrane repair.

Our Research Focus

Connecting correction with biological function

Genetic correction

Explore editing approaches designed around disease-causing DYSF variants, with performance evaluated for each target

LNP-mediated delivery

Develop LNP-based strategies to deliver prime editor mRNA and guide RNA to muscle cells, enabling precise correction of disease-causing DYSF variants

Functional evaluation

Define progress through DNA editing, dysferlin expression and disease-relevant cellular function

LNP-enabled prime editing is a current research foundation. Durable treatment, including the long-term possibility
of a one-time intervention, remains a goal requiring evidence of effective delivery, safety and lasting benefit.

Advancing Genetic Research
for LGMD2B/R2

Our mission is to contribute to the advancement of genetic therapies for LGMD2B/R2
that can provide lasting improvements in muscle function

Our Mission

Correcting the Cause
Restoring Function

LGMD2B/R2 presents a distinct research challenge: correcting disease-causing variants in the DYSF gene while achieving meaningful and lasting improvement in muscle function.

Our research brings together prime editing, LNP-mediated delivery, safety assessment, and functional evaluation with the goal of correcting disease-causing variants in the DYSF gene, restoring dysferlin expression, and improving muscle-cell membrane repair.

By maintaining a dedicated focus on LGMD2B/R2, we aim to evaluate genetic correction, delivery efficiency, safety, and biological function as parts of a connected research strategy. This disease-centered approach guides our efforts to advance durable therapeutic strategies.

A Platform Designed to Evolve
with Gene Editing

Our approach combines non-viral delivery with adaptable gene-editing strategies,
allowing the platform to incorporate new technologies as the field advances

Platform Strategy

Built to Evolve

Our long-term strategy is to build an adaptable in vivo platform for LGMD2B/R2 rather than anchor the program to a single gene-editing technology
Today, LNP-enabled prime editing provides a foundation for platform development As new precise editing systems and delivery technologies emerge,
the platform is designed to evaluate and integrate approaches that may improve targeting, editing performance, and therapeutic durability

01
DELIVERY LAYER

Non-Viral Delivery

Lipid nanoparticles provide a modular route for delivering RNA-based editing components in vivo with transient expression of the delivered editing machinery

03
EVOLVING PLATFORM

Emerging Editing Technologies

The platform is intended to evolve as next-generation gene-editing systems, targeting methods, and delivery technologies advance

Current Research Foundation

How LNP-Enabled Prime Editing Works

This simplified workflow illustrates a separate-LNP delivery concept for Prime Editor mRNA and pegRNA. It shows the intended sequence of events, not a measured outcome.

Step 01: Dual LNPs in circulation
01

Dual LNPs in circulation

PE mRNA-LNP and pegRNA-LNP circulate as separate RNA cargo carriers

Step 02: Same-cell uptake
02

Same-cell uptake

Successful editing requires both RNA cargos to reach the same target cell

Step 03: Endosomal escape
03

Endosomal escape

The LNPs release Prime Editor mRNA and pegRNA into the cytoplasm

Step 04: Expression
04

Expression

Prime Editor mRNA is translated into Prime Editor protein while pegRNA remains available

Step 05: RNP complex formation
05

RNP complex formation

Prime Editor protein and pegRNA assemble into a functional ribonucleoprotein complex

Step 06: Target DNA binding
06

Target DNA binding

After nuclear entry, the editing complex recognizes the target DNA specified by the pegRNA

Step 07: Prime editing reaction
07

Prime editing reaction

Prime Editor writes the programmed sequence change using the pegRNA template

Step 08: DNA repair & resolution
08

DNA repair & resolution

Cellular repair processes resolve the edited intermediate and incorporate the edited strand

Step 09: Edit completed
09

Edit completed

Successful repair retains the intended DNA change; editing outcomes require experimental verification

Conceptual research illustrationThe broader ACGENE Lab platform is designed to extend beyond a single editing modality as gene-editing and delivery technologies continue to advance

Platform Direction

Designed to Incorporate
What Comes Next

PE-LNP is a current foundation—not the endpoint Our research framework is intended to evaluate and integrate advances in delivery and gene editing that may strengthen the path toward durable treatment strategies for LGMD2B/R2

Move the Work Forward, Together

Connect with ACGENE Lab about scientific collaboration, research partnerships,and shared efforts toward durable LGMD treatments.

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