The decisive question
When is it more realistic to restore an existing cell than to create a replacement population?
Why this direction
Repair and replacement solve different problems. Replacement requires integration and appropriate behavior; in-place restoration requires identity retention. The comparison should be driven by tissue function, not by which approach sounds more futuristic.
What a useful result would need
- The specific function the original tissue has lost
- Identity and stability of a proposed replacement population
- Integration without interference with surrounding tissue
- Durable benefit rather than short-term marker normalization
Advance and stop conditions
Changing cell identity is not evidence of preserving the original cell’s function.
An injured young system is not a substitute for an aged system.
Evaluate replacement and restoration against the same functional need.
What is not being claimed
No stem-cell clinic, cell banking service, transplantation program, or tissue product is currently offered.