This one was sent to me by James E. Morr. Thanks, James!
Pigs could grow human organs in stem cell breakthrough
Human organs could be grown inside pigs for use in transplant operations following research using stem cells.
Well, if you read ANCESTOR you know how this turned out in Greenland ...
Scientists are working on an exciting new method for growing human organs inside of pigs. This concept takes the science in ANCESTOR a step further -- they aren't growing human-compatible organs in the animal, they are growing human organs in the animal.
They genetically engineer an animal so it can not grow particular internal organs. Then, they insert stem cells from the target species, and these stem cells grow into the missing organ, working normally inside the host animal. Whaaaa? Yeah, pretty fucked-up.
This is still pretty theoretical as far as my layman's knowledge goes. Even if they can grow organs for large animals, you're still looking at the obstacle of the immune response -- which is the primary reason we can't put pig hearts into people now. As I understand it, pig hearts will work, but our immune system beats the shit out of them (yes, that's a scientific term).