Regeneration Balance: Cells, Vessels & Scarring

Regenerative medicine rests on three pillars working together — seeded cells, a supportive scaffold, and a host response that builds blood supply instead of scar tissue. This simulator models a single graft site as four coupled state variables (vascularization, scaffold integrity, fibrosis, tissue integration) and renders the outcome live in 3D: a cell-seeded scaffold cage, a vessel network that branches and grows toward it as angiogenic signal drives new blood-vessel formation, and immune cells whose color shifts from healing to inflammatory. Push the sliders too far in either direction and the graft either scars over or the scaffold collapses before real tissue can replace it — the same balancing act clinicians face when designing a regenerative therapy.