The observation that stem cells, as master cells, could give rise to a whole variety of different cell types heart cells, liver cells, pancreatic islet cells captured the attention of the media and the imagination of the public.

That's their job.

Well, heart cells are pretty greedy.

I said some of them will turn into brain cells.

What else do we know about the heart?

So that all the cells of your body the skin cells, the cells of your liver, and of your heart, and even of your ear, those cells know, at a fundamental molecular level, whether they are XX or XY.

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

And these micro machines power how a cell moves.

leaving just the cartilage.

But even now, 2011, there's still certain cells that we just can't grow from the patient.

You probably know, if you've been paying attention to some of the science literature that you can now take a skin cell and encourage it to become a liver cell or a heart cell or a kidney cell or a brain cell for any of us.

So these coronary blood vessels are actually serving the heart muscle itself.

But, I mean it gets more interesting.

Օրինակ իմ լյարդը ենթամիավոր է Սալ ի և դա օրգան է, օրգանոիդը բջջի ենթամիավոր է

And then what they did in October is they took skin cells, turned them into stem cells and began to turn them into liver cells.

Each one plays a particular role a heart cell, a muscle cell, a brain cell.

You could, if you want, compare this to, on the one hand, a myocardial infarction, a heart attack, where you have dead tissue in the heart, versus an arrhythmia, where the organ simply isn't functioning because of the communication problems within it.

You know, we're not mice, and you can't go into a living person with an illness and just pull out a few brain cells or cardiac cells and then start fooling around in a lab to test for, you know, a promising drug.

Maybe these cells eventually differentiate into things that'll turn to my brain.

We then take the cells, the vascular cells, blood vessel cells, we perfuse the vascular tree with the patient's own cells.

We're actually injecting contrast into the organ.

If you present with a diseased pancreas we'd like to take cells from that organ.

I'm going to show you just how early this technology is.

On the left, we see a tiny piece of beating heart tissue that I engineered from rat cells in the lab.

If we were to zoom in on a salmon, which is a fatty fish, past the organs, past the tissues, into the cells, we would see that the stuff we call fat is actually made up of molecules called triglycerides, and they are not all alike.

This is exactly what happens in your body.

If you take some heart cells from an animal, and put it in a dish, they'll just sit there and beat.

Then, they sprayed stem cells onto that heart, from a mouse.

The pancreas turns over cells every 24 hours,

Each one has his story.

We don't need to teach it to become another cell type.

Well, if you don't know whether if you're studying XX or XY cells

I too was fascinated by this new and disruptive cell technology, and this inspired a shift in my mindset, from transplanting whole organs to transplanting cells.

So to think about exactly what the heart does, I think one, kind of neat way to do it is to actually imagine that you're a cell.

So in a male, you have some germ cells, so some of these cells turn into germ cells.

Not only coronary heart disease just is not getting enough oxygen, now they are actually dead.

Եկեք դա նշեմ բջջային թաղանթ

Your heart has receptors for this hormone, and oxytocin helps heart cells regenerate and heal from any stress induced damage.

You already saw the work by Tony Atala on TED, but this ability to start filling things like inkjet cartridges with cells are allowing us to print skin, organs and a whole series of other body parts.

No thanks, I'd actually rather store this energy.

Fat derived stem cells are adult stem cells.

You can hold it like a liver, but it has no cells it's just a skeleton of the liver.

4.8 million suffer cardiac failure.

Cell division

Cell radius