ELI5: So what’s really stopping us from growing replacement organs/body parts in a lab today?

r/

Given we can clone mammals like dogs/sheep?

Comments

  1. boolocap Avatar

    The problem is mostly that organs are usually grown inside a body. And recreating the conditions that make it possible outside of a body is really difficult. Your body is doing an absolute ton of stuff under the hood that you don’t know about. It’s not as simple as just supplying the right nutrients.

  2. faultysynapse Avatar

    Cloning an entire organism is one thing. Cloning an individual organ from within that organism is another entirely different problem.

    As far as I’m aware we are simply just not near that level of ability or sophistication. 

  3. Craxin Avatar

    Technology. We’d need a way to produce living cells and then lay them together in a way that they function. Cloning an animal is essentially copying the genes of one animal and implanting it into an egg, then artificially implanting it into the womb of another animal.

  4. FaultySage Avatar

    A clone is a full living organism. They develop in a uterus the same as any other animal. They grow the organs naturally. If you’re suggesting we clone people to have bodies full of extra organs then the issue is the fact that it would be horribly unethical.

    Other than that we can’t grow organs. Shit’s complicated. We’ve only just gotten good at growing “normal” cells outside of a living organism, and there’s work being done to shape them into 3D structures, but we are no where close to growing an organ.

  5. shotsallover Avatar

    Studying human cloning is currently illegal pretty much globally. Every country has laws against it, and researchers that get close to that area tend to get disappeared or have their reputation absolutely destroyed.

  6. The_Slavstralian Avatar

    Corporate greed for 1… Its more profitable to treat than cure. I don’t care how much people bang on about pharma having ethics.. I call complete bullshit on it. They know they could cure a whole bunch of things. Maybe not cancer yet or those big ones… but I am certain they can cure a lot of stuff that makes them massive money and they elect not to because it is good for the shareholder… which surprise surprise is the root of why shit is expensive a lot of the time.

  7. Desdam0na Avatar

    We are actually doing this somewhat successfully, growing human organs in a pig using stem cells.

    We have succesfully transplanted one such organ into a human, and it seemed to be working until they tragically died of unrelated causes.

    The thing is testing something so new in humans is so dangerous that we are progessing slowly.  Even more slowly now that funding for medical research is being drastically cut. 

  8. Alib668 Avatar

    Go on then, grow a thumb, without the right conditions and context etc etc you can grow meat, bone and ligaments. But likely the core structure will look like a burger not a thumb.

    We still to this day do not know why a thumb grows like a thumb and not a burger and meat splotch. Its really really hard to work it out,

    now do that for like livers and kidneys which are way more compelex