A Billionaire-Backed Startup Wants to Grow 'Organ Sacks' to Replace Animal Testing

R3 Bio has a bold idea for replacing lab animals: genetically-engineered whole organ systems that lack a brain. The long-term goal, says a cofounder, is to make human versions.

As the Trump administration phases out the use of animal experimentation across the federal government, a biotech startup has a bold idea for an alternative to animal testing: nonsentient “organ sacks.”

Bay Area-based R3 Bio has been quietly pitching the idea to investors and in industry publications as a way to replace lab animals without the ethical issues that come with living organisms. That’s because these structures would contain all of the typical organs—except a brain, rendering them unable to think or feel pain. The company’s long-term goal, cofounder Alice Gilman says, is to make human versions that could be used as a source of tissues and organs for people who need them.

For Immortal Dragons, a Singapore-based longevity fund that’s invested in R3, the idea of replacement is a core strategy for human longevity. “We think replacement is probably better than repair when it comes to treating diseases or regulating the aging process in the human body,” says CEO Boyang Wang. “If we can create a nonsentient, headless bodyoid for a human being, that will be a great source of organs.”

Read the full article here: A Billionaire-Backed Startup Wants to Grow ‘Organ Sacks’ to Replace Animal Testing (Wired)

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Many of us have heard the story of the Oxford mathematics graduate found to have no brain, just fluid where it should have been. Maybe that’s an apocryphal story, maybe not.

But here’s something close to that from the Michael Levin interview that CronosTempi posted yesterday (Aging as Directed Development Blueprint [Mike Lustgarten, Michael Levin, Leo Pio-Lopez]): “One of the most interesting clinical datasets here is the rare human cases of extremely reduced brain volume with normal IQs. Karina Kaufman and I reviewed these recently. Some people have amazingly little brain tissue and yet overtly normal IQs and personalities.”