The age of genetic wonder | Juan Enriquez

125,129 views ใƒป 2019-03-01

TED


Please double-click on the English subtitles below to play the video.

00:13
So let me with start with Roy Amara.
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Roy's argument is that most new technologies tend to be overestimated
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in their impact to begin with,
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and then they get underestimated in the long term
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because we get used to them.
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These really are days of miracle and wonder.
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You remember that wonderful song by Paul Simon?
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There were two lines in it.
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So what was it that was considered miraculous back then?
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Slowing down things -- slow motion --
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and the long-distance call.
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Because, of course, you used to get interrupted by operators
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who'd tell you, "Long distance calling. Do you want to hang up?"
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And now we think nothing of calling all over the world.
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Well, something similar may be happening
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with reading and programming life.
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But before I unpack that,
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let's just talk about telescopes.
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Telescopes were overestimated originally in their impact.
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This is one of Galileo's early models.
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People thought it was just going to ruin all religion.
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(Laughter)
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So we're not paying that much attention to telescopes.
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But, of course, telescopes launched 10 years ago, as you just heard,
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could take this Volkswagen, fly it to the moon,
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and you could see the lights on that Volkswagen light up on the moon.
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And that's the kind of resolution power that allowed you to see
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little specks of dust floating around distant suns.
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Imagine for a second that this was a sun a billion light years away,
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and you had a little speck of dust that came in front of it.
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That's what detecting an exoplanet is like.
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And the cool thing is, the telescopes that are now being launched
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would allow you to see a single candle lit on the moon.
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And if you separated it by one plate,
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you could see two candles separately at that distance.
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And that's the kind of resolution that you need
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to begin to image that little speck of dust
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as it comes around the sun
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and see if it has a blue-green signature.
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And if it does have a blue-green signature,
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it means that life is common in the universe.
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The first time you ever see a blue-green signature on a distant planet,
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it means there's photosynthesis there,
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there's water there,
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and the chances that you saw the only other planet with photosynthesis
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are about zero.
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And that's a calendar-changing event.
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There's a before and after we were alone in the universe:
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forget about the discovery of whatever continent.
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So as you're thinking about this,
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we're now beginning to be able to image most of the universe.
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And that is a time of miracle and wonder.
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And we kind of take that for granted.
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Something similar is happening in life.
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So we're hearing about life in these little bits and pieces.
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We hear about CRISPR, and we hear about this technology,
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and we hear about this technology.
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But the bottom line on life is that life turns out to be code.
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And life as code is a really important concept because it means,
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just in the same way as you can write a sentence
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in English or in French or Chinese,
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just in the same way as you can copy a sentence,
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just in the same way as you can edit a sentence,
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just in the same way as you can print a sentence,
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you're beginning to be able to do that with life.
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It means that we're beginning to learn how to read this language.
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And this, of course, is the language that is used by this orange.
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So how does this orange execute code?
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It doesn't do it in ones and zeroes like a computer does.
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It sits on a tree, and one day it does:
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plop!
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And that means: execute.
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AATCAAG: make me a little root.
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TCGACC: make me a little stem.
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GAC: make me some leaves. AGC: make me some flowers.
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And then GCAA: make me some more oranges.
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If I edit a sentence in English on a word processor,
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then what happens is you can go from this word to that word.
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If I edit something in this orange
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and put in GCAAC, using CRISPR or something else that you've heard of,
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then this orange becomes a lemon,
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or it becomes a grapefruit,
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or it becomes a tangerine.
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And if I edit one in a thousand letters,
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you become the person sitting next to you today.
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Be more careful where you sit.
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(Laughter)
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What's happening on this stuff is it was really expensive to begin with.
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It was like long-distance calls.
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But the cost of this is dropping 50 percent faster than Moore's law.
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The first $200 full genome was announced yesterday by Veritas.
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And so as you're looking at these systems,
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it doesn't matter, it doesn't matter, it doesn't matter, and then it does.
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So let me just give you the map view of this stuff.
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This is a big discovery.
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There's 23 chromosomes.
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Cool.
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Let's now start using a telescope version, but instead of using a telescope,
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let's use a microscope to zoom in
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on the inferior of those chromosomes,
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which is the Y chromosome.
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It's a third the size of the X. It's recessive and mutant.
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But hey,
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just a male.
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And as you're looking at this stuff,
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here's kind of a country view
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at a 400 base pair resolution level,
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and then you zoom in to 550, and then you zoom in to 850,
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and you can begin to identify more and more genes as you zoom in.
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Then you zoom in to the state level,
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and you can begin to tell who's got leukemia,
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how did they get leukemia, what kind of leukemia do they have,
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what shifted from what place to what place.
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And then you zoom in to the Google street view level.
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So this is what happens if you have colorectal cancer
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for a very specific patient on the letter-by-letter resolution.
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So what we're doing in this stuff is we're gathering information
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and just generating enormous amounts of information.
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This is one of the largest databases on the planet
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and it's growing faster than we can build computers to store it.
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You can create some incredible maps with this stuff.
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You want to understand the plague and why one plague is bubonic
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and the other one is a different kind of plague
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and the other one is a different kind of plague?
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Well, here's a map of the plague.
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Some are absolutely deadly to humans,
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some are not.
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And note, by the way, as you go to the bottom of this,
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how does it compare to tuberculosis?
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So this is the difference between tuberculosis and various kinds of plagues,
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and you can play detective with this stuff,
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because you can take a very specific kind of cholera
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that affected Haiti,
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and you can look at which country it came from,
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which region it came from,
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and probably which soldier took that from that African country to Haiti.
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Zoom out.
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It's not just zooming in.
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This is one of the coolest maps ever done by human beings.
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What they've done is taken all the genetic information they have
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about all the species,
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and they've put a tree of life on a single page
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that you can zoom in and out of.
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So this is what came first, how did it diversify, how did it branch,
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how large is that genome,
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on a single page.
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It's kind of the universe of life on Earth,
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and it's being constantly updated and completed.
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And so as you're looking at this stuff,
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the really important change is the old biology used to be reactive.
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You used to have a lot of biologists that had microscopes,
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and they had magnifying glasses and they were out observing animals.
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The new biology is proactive.
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You don't just observe stuff, you make stuff.
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And that's a really big change
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because it allows us to do things like this.
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And I know you're really excited by this picture.
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(Laughter)
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It only took us four years and 40 million dollars
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to be able to take this picture.
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(Laughter)
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And what we did
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is we took the full gene code out of a cell --
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not a gene, not two genes, the full gene code out of a cell --
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built a completely new gene code,
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inserted it into the cell,
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figured out a way to have the cell execute that code
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and built a completely new species.
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So this is the world's first synthetic life form.
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And so what do you do with this stuff?
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Well, this stuff is going to change the world.
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Let me give you three short-term trends
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in terms of how it's going to change the world.
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The first is we're going to see a new industrial revolution.
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And I actually mean that literally.
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So in the same way as Switzerland and Germany and Britain
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changed the world with machines like the one you see in this lobby,
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created power --
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in the same way CERN is changing the world,
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using new instruments and our concept of the universe --
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programmable life forms are also going to change the world
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because once you can program cells
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in the same way as you program your computer chip,
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then you can make almost anything.
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So your computer chip can produce photographs,
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can produce music, can produce film,
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can produce love letters, can produce spreadsheets.
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It's just ones and zeroes flying through there.
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If you can flow ATCGs through cells,
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then this software makes its own hardware,
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which means it scales very quickly.
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No matter what happens,
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if you leave your cell phone by your bedside,
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you will not have a billion cell phones in the morning.
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But if you do that with living organisms,
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you can make this stuff at a very large scale.
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One of the things you can do is you can start producing
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close to carbon-neutral fuels
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on a commercial scale by 2025,
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which we're doing with Exxon.
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But you can also substitute for agricultural lands.
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Instead of having 100 hectares to make oils or to make proteins,
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you can make it in these vats
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at 10 or 100 times the productivity per hectare.
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Or you can store information, or you can make all the world's vaccines
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in those three vats.
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Or you can store most of the information that's held at CERN in those three vats.
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DNA is a really powerful information storage device.
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Second turn:
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you're beginning to see the rise of theoretical biology.
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So, medical school departments are one of the most conservative places on earth.
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The way they teach anatomy is similar to the way they taught anatomy
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100 years ago.
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"Welcome, student. Here's your cadaver."
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One of the things medical schools are not good at is creating new departments,
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which is why this is so unusual.
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Isaac Kohane has now created a department based on informatics, data, knowledge
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at Harvard Medical School.
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And in a sense, what's beginning to happen is
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biology is beginning to get enough data
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that it can begin to follow the steps of physics,
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which used to be observational physics
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and experimental physicists,
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and then started creating theoretical biology.
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Well, that's what you're beginning to see
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because you have so many medical records,
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because you have so much data about people:
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you've got their genomes, you've got their viromes,
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you've got their microbiomes.
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And as this information stacks,
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you can begin to make predictions.
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The third thing that's happening is this is coming to the consumer.
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So you, too, can get your genes sequenced.
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And this is beginning to create companies like 23andMe,
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and companies like 23andMe are going to be giving you
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more and more and more data,
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not just about your relatives,
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but about you and your body,
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and it's going to compare stuff,
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and it's going to compare stuff across time,
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and these are going to become very large databases.
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But it's also beginning to affect a series of other businesses
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in unexpected ways.
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Normally, when you advertise something, you really don't want the consumer
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to take your advertisement into the bathroom to pee on.
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Unless, of course, if you're IKEA.
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Because when you rip this out of a magazine and you pee on it,
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it'll turn blue if you're pregnant.
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(Laughter)
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And they'll give you a discount on your crib.
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(Laughter)
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Right? So when I say consumer empowerment,
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and this is spreading beyond biotech,
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I actually really mean that.
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We're now beginning to produce, at Synthetic Genomics,
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desktop printers
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that allow you to design a cell,
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print a cell,
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execute the program on the cell.
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We can now print vaccines
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real time as an airplane takes off
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before it lands.
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We're shipping 78 of these machines this year.
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This is not theoretical biology. This is printing biology.
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Let me talk about two long-term trends
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that are coming at you over a longer time period.
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The first one is, we're starting to redesign species.
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And you've heard about that, right?
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We're redesigning trees. We're redesigning flowers.
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We're redesigning yogurt,
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cheese, whatever else you want.
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And that, of course, brings up the interesting question:
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How and when should we redesign humans?
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And a lot of us think, "Oh no, we never want to redesign humans."
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Unless, of course, if your child has a Huntington's gene
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and is condemned to death.
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Or, unless if you're passing on a cystic fibrosis gene,
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in which case, you don't just want to redesign yourself,
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you want to redesign your children and their children.
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And these are complicated debates and they're going to happen in real time.
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I'll give you one current example.
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One of the debates going on at the National Academies today
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is you have the power to put a gene drive into mosquitoes
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so that you will kill all the malaria-carrying mosquitoes.
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Now, some people say,
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"That's going to affect the environment in an extreme way, don't do it."
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Other people say,
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"This is one of the things that's killing millions of people yearly.
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Who are you to tell me that I can't save the kids in my country?"
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And why is this debate so complicated?
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Because as soon as you let this loose in Brazil
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or in Southern Florida --
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mosquitoes don't respect walls.
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You're making a decision for the world
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when you put a gene drive into the air.
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This wonderful man won a Nobel Prize,
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and after winning the Nobel Prize
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he's been worrying about
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how did life get started on this planet
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and how likely is it that it's in other places?
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So what he's been doing is going around to this graduate students
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and saying to his graduate students,
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"Build me life but don't use any modern chemicals or instruments.
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Build me stuff that was here three billion years ago.
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You can't use lasers. You can't use this. You can't use that."
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He gave me a vial of what he's built about three weeks ago.
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What has he built?
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He's built basically what looked like soap bubbles that are made out of lipids.
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He's built a precursor of RNA.
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He's had the precursor of the RNA be absorbed by the cell
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and then he's had the cells divide.
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We may not be that far --
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call it a decade, maybe two decades --
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from generating life from scratch
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out of proto-communities.
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Second long-term trend:
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we've been living and are living through the digital age --
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we're starting to live through the age of the genome
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and biology and CRISPR and synthetic biology --
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and all of that is going to merge into the age of the brain.
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So we're getting to the point where we can rebuild most of our body parts,
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in the same way as if you break a bone or burn your skin, it regrows.
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We're beginning to learn how to regrow our tracheas
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or how to regrow our bladders.
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Both of those have been implanted in humans.
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Tony Atala is working on 32 different organs.
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But the core is going to be this,
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because this is you and the rest is just packaging.
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Nobody's going to live beyond 120, 130, 140 years
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unless if we fix this.
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And that's the most interesting challenge.
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That's the next frontier, along with:
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"How common is life in the universe?"
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"Where did we come from?"
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and questions like that.
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Let me end this with an apocryphal quote from Einstein.
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[You can live as if everything is a miracle,
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or you can live as if nothing is a miracle.]
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It's your choice.
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You can focus on the bad, you can focus on the scary,
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and certainly there's a lot of scary out there.
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But use 10 percent of your brain to focus on that, or maybe 20 percent,
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or maybe 30 percent.
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But just remember,
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we really are living in an age of miracle and wonder.
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We're lucky to be alive today. We're lucky to see this stuff.
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We're lucky to be able to interact with folks like the folks
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who are building all the stuff in this room.
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So thank you to all of you, for all you do.
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(Applause)
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About this website

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