Summary

  • Researchers from the IRCCS San Raffaele Scientific Institute in Italy have developed a way to perform gene therapy on mice to treat three types of blood-related genetic disorders.
  • The mice were between one and five days old, as after birth there are large numbers of blood stem cells in the bloodstream which settle in the bone marrow a few days later, making them hard to reach.
  • The team used a single gene therapy injection to reprogram the blood stem cells, with the edits lasting for 20 weeks.
  • When these cells were then transplanted into mice who had not been given the therapy, they maintained their functionality and propagated.
  • This suggests the new approach could be applied to humans to treat severe immunodeficiencies, as well as Fanconi anaemia.
  • However, it remains a less efficient option than therapies which extract blood stem cells, modify them, and then reintroduce them into the body.

By Shelly Fan

Original Article