What Is Therapeutic Germline Gene Editing?
Therapeutic germline gene editing is the use of precision genome editing to correct disease-causing genetic mutations before they can be passed to future generations.
Why Germline?
Treating a Mutation Before Disease Begins
Somatic gene therapies treat cells in a person who has already developed, often after symptoms have appeared. Germline gene editing acts at the earliest stage of development.
A successful correction could therefore be present across the body as it develops and prevent the mutation from being transmitted to the next generation.
Selection and Correction
Two Different Approaches
- Embryo selection
- Identifies embryos that did not inherit a mutation.
- Genome correction
- Seeks to repair a mutation in an affected embryo.
Selection will remain sufficient for many families. Correction may eventually offer an option when few or no unaffected embryos are available.
The Challenge
Changing DNA Is Only the Beginning
For therapeutic germline gene editing to become clinically viable, researchers must demonstrate:
- Accurate correction.
- Low mosaicism.
- Minimal unintended editing.
- Preserved genomic integrity.
- Normal developmental outcomes.
- Reproducible results.
- Clear clinical benefit.
- Long-term safety.
Origin is developing the tools, data, and standards needed to address these questions.