Overview
- Paterna Biosciences says it produced mature human sperm in a lab from spermatogonial stem cells.
- The startup says the lab-made sperm fertilized human eggs to form early embryos that were used for testing.
- The work has not been peer-reviewed or confirmed by outside labs, and experts urge larger genetic and developmental safety studies before any pregnancies.
- The approach programs stem cells with staged chemical signals mapped by computer analysis instead of rebuilding full testicular tissue.
- The company estimates a $5,000–$12,000 price and media reports suggest trials could begin as soon as next year, with possible use for some infertile men and boys treated for cancer pending regulation and access.