LONDON (AP) — Sweden's Karolinska University says it has fired Italian stem cell scientist Paolo Macchiarini, whose work was once considered revolutionary but has since been deemed to have breached medical ethics.

In a statement on Wednesday, Karolinska said Macchiarini was to be informed immediately that his contract has been rescinded. The university said Macchiarini was being fired for reasons including falsifying his CV and scientific negligence.

Karolinska said Macchiarini had "acted in a way that has had very tragic consequences for the people affected and their families."

Macchiarini was part of the team that conducted the world's first transplant using a windpipe partly made from a patient's own stem cells in 2008.

Earlier this year, a Swedish documentary raised ethical concerns about his work, which Karolinska described as "truly alarming."