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3D-printed heart a potential breakthrough in making human organs



It has been a potential breakthrough in making organs in the lab. Israeli researchers have 3D printed a heart complete with muscles and blood vessels. But how long before it is ready for real use? Not a while, according to Dr. Max Gomez from CBS New York.

Printing an organ is much more complicated than spraying a bunch of cells in the form of a heart or kidney.

That being said, researchers at Tel Aviv University have taken a big step towards shelf-care.

Video shows that a living heart is printed. 3D printing includes not only heart cells, but blood vessels and other supporting structures. It's a little heart, about the size of a rabbit. Not only are the cells alive, but all the different cell types in the heart came from a single human donor.

"It's important because it prevents the possibility of rejection," says Dr. Anthony Atala from the Wake Forest Institute for Regenerative Medicine.

  3D printed heart
Israeli researcher Tal Dvir from the Tel Aviv University has a transparent cup containing what the university says is the world's first 3D printed, vascularly constructed heart during a demonstration at a university laboratory, Tel. Aviv, Israel, on Monday, April 15, 2019.

Reuters


Dr. Atala is a pioneer in 3D printing of organs and tissues. He explained that the cells that made the heart came from a donor fat tissue, which was then converted to stem cells, and then differentiated into the different cell types in the heart.

These cells are then printed out into a biodegradable scaffold or skeleton, which gives it its shape.

Although it looks like a heart, it is not yet structurally functional and does not pump.

"A working heart must contract and be linked to ships to work" Dr. Atala said.

The first pressurized organs and tissues for real human use will be easier: blisters, ears, blood vessels and trachea, some of which have already been implanted in patients, Dr. Atala says.

  3D Printed Heart
A 3D printer prints which Israeli scientists from Tel Aviv University are the world's first 3D printed, vascular constructed heart.

Reuters


The more immediate value of the Israeli work is to do what they call a heart patch, some functioning heart tissue to repair heart attack.

The heart patch, which has an innate ability to come into contact, can integrate into the heart much easier than building an entire heart that must be coordinated in a coordinated manner. Atria and ventricles must pump in an exact sequence for blood to be pumped effectively.


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