TECHNOLOGY / VIRTUAL CELL

Emergent Pancreatic β-Cell Dynamics from Mechanistic Virtual Cell Modeling

A proprietary virtual cell system built on our original modeling framework and powered by Zoooo, reproducing ER-stress–driven apoptosis through intrinsic biochemical dynamics

Emergent Pancreatic β-Cell State Visualization

This figure shows a snapshot of the virtual pancreatic β-cell simulation at step 672, visualizing the spatial organization and interactions of metabolic, ionic, and signaling components. In this system, each simulation step corresponds to 1 second of real biological time, ensuring that the dynamics evolve on a physiologically consistent temporal scale.

Each particle represents a biological entity (ATP, Ca²⁺, insulin granules, mitochondria), interacting continuously within a unified dynamical system. No external rules or predefined triggers governing cell fate are imposed. As a result, the virtual cell evolves purely from intrinsic biochemical interactions and naturally transitions to apoptosis under sustained ER stress conditions.

Importantly, across multiple independent simulation runs, apoptosis consistently emerges at approximately 2320 steps (~40 minutes), demonstrating strong reproducibility and aligning closely with experimentally observed timescales of acute ER-stress–induced apoptosis. This indicates that the model captures underlying biological causality, rather than merely reproducing surface-level behavior.

Apoptosis is not programmed. It emerges.

CORE STATEMENT

We present a mechanistic virtual pancreatic β-cell model in which cellular fate emerges entirely from intrinsic biochemical dynamics,

without any externally imposed rules.

Under sustained ER stress, the system autonomously transitions from a stable metabolic state to apoptosis through UPR signaling and chronic CHOP activation.

In a representative simulation, the β-cell undergoes apoptosis after approximately 40 minutes of simulated time — a timescale that is fully consistent with real biological behavior under acute ER stress, and achieved without any predefined death triggers or manual intervention.

This result highlights that the model captures true biological causality, rather than reproducing pre-programmed outcomes.

SCIENTIFIC NOTE

Apoptosis emerges as:

ER stress → UPR → chronic CHOP activation → apoptosis

HIGHLIGHTS

Mechanism-first simulation.

Apoptosis emerges spontaneously from internal biochemical dynamics (no hard-coded rules)

Tight coupling across metabolism, signaling, and gene regulation

Mechanistically consistent ER-stress response behavior

Continuous-time simulation without discrete forcing

Experiment-level temporal realism (~40 min apoptosis onset, biologically validated)

Apoptosis onset: ~40 minutes (simulated time)

TECHNICAL DESCRIPTION

The virtual β-cell is built upon our proprietary mechanistic modeling framework and powered by the Zoooo platform.

—Metabolic flux dynamics
—Calcium signaling and electrophysiology
—ER stress and unfolded protein response (UPR)
—Gene regulatory feedback
—Continuous lifecycle state transitions
—All modules are dynamically coupled, forming a unified system in which cross-scale biological interactions drive system-level behavior.

REAL-WORLD IMPACT

This technology is already in real-world deployment.

Oda Pharmaceutical has successfully adopted this virtual cell system in its drug discovery pipeline.

Using this platform, Oda Pharmaceutical has:

This demonstrates that mechanistic virtual cell modeling is not only scientifically valid, but also mature and industrially applicable.

—Established virtual β-cell–based disease modeling systems
—Accelerated compound screening through mechanism-level evaluation
—Successfully developed and advanced multiple therapeutic candidates
—Particularly in:
—Type 2 Diabetes
—Gout and metabolic disorders

VISION

This work represents a shift toward true mechanistic digital cells, where life-like behavior emerges from integrated biological processes rather than predefined rules or approximations.