In the US, doctors for the first time printed an ear on a 3D printer and transplanted it to a patient

Doctors have successfully transplanted a 3D-printed ear made from human cells. It was needed by a woman who was born with a rare ear deformity. The publication told more about it The Verge.

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The transplant was part of the technology's first clinical trial, and its success marks a major step forward in tissue engineering.

“If everything goes according to plan, it will be a revolution,” said Arturo Bonilla, an ear reconstruction surgeon who led the team that performed the operation.

About 1500 babies are born each year in the United States with microtia, a condition in which one or both ears are underdeveloped or completely absent. 3DBio Therapeutics is conducting a clinical trial in which 11 participants test their ear AuriNovo, a personalized tissue implant to replace the missing hearing organ in these patients.

On the subject: American surgeons successfully transplanted a pig kidney into a human for the first time

As a rule, in patients with microtia, the ears are constructed from rib grafts or synthetic materials. But this experimental process involves taking a biopsy from the patient's existing ear and extracting cartilage cells. These cells are then grown and 3D printed in the shape of the patient's ear. The ear continues to regenerate cartilage throughout a patient's life, and because it is made from their own cells, it is very unlikely that the body will reject it.

It was a year of important advances in transplant technology. In January, the doctors made the patient pig heart transplantalthough after a few months patient died - as it turned out, transplanted the animal's heart was infected with porcine cytomegalovirus. Other research groups are working on 3D printing of lungs and 3D printing of blood vessels.

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3DBio Therapeutics executives said their technology could potentially print other body parts such as noses and rotator cuffs. Ultimately, complex organs such as the liver and kidneys.

Ears are simpler than internal organs and, unlike the liver, they are not needed to keep humans alive, so the road to a potential future is a long one.

"But it's more realistic if it worked out with the ear," said Adam Feinberg, a professor of biomedical engineering, materials science, and engineering at Carnegie Mellon University.

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