“Assembly and Function of a Bioengineered Human Liver for Transplantation Generated Solely from
Induced Pluripotent Stem Cells“
That’s the fancy title of a new report by Kazuki Takeishi and other scientists who have successfully created miniature human livers from stem cells and put them into mice. I won’t get into the details, mostly because I don’t understand them, but here’s a picture:
You can read the very technical research paper here on Cell.com: Growing Mini Livers
About 17,000 people are currently waiting for a liver transplant in the United States. This number greatly exceeds the amount of available, donated by deceased donors. Meanwhile, organ transplants can be prohibitively expensive. In 2017, patients receiving a liver transplant were billed an estimated $812,500. That includes pre and post-op care as well as immunosuppressant drugs to keep people’s bodies from rejecting the transplanted organ.
I am one of those liver transplant recipients. My donor passed away on May 12th 2020, and in the early hours of May 13th, my dying liver was removed and replaced with the donor’s healthy liver in an operation that lasted about 4 hours. That was exactly three weeks ago, but I could have been much more unlucky. Each year an estimated 2000 people die while on the national transplant list…there are just not enough donated livers to keep up with demand. And you can’t live without a functioning liver…it is one of the most important organs and supports over 500 key body functions.
While the science isn’t quite ready for prime-time, scientists expect that within 10 years, liver donations will be a thing of the past.
You can read a much less science-y version of the story here: Lab Grown Human Mini Livers