[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I want to talk to you\Nabout the future of medicine,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but before I do that, I want to talk\Na little bit about the past.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Now, throughout much\Nof the recent history of medicine,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,we've thought about illness and treatment
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in terms of a profoundly simple model.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In fact, the model is so simple
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that you could summarize it in six words:
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,have disease, take pill, kill something.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Now, the reason for\Nthe dominance of this model
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is of course the antibiotic revolution.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Many of you might not know this,\Nbut we happen to be celebrating
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the hundredth year of the introduction\Nof antibiotics into the United States,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but what you do know
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is that that introduction\Nwas nothing short of transformative.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Here you had a chemical,\Neither from the natural world
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,or artificially synthesized\Nin the laboratory,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and it would course through your body,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,it would find its target,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,lock into its target --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,a microbe or some part of a microbe --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and then turn off a lock and a key
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,with exquisite deftness,\Nexquisite specificity,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you would end up taking\Na previously fatal, lethal disease,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,a pneumonia, syphilis, tuberculosis,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and transforming that into a curable,\Nor treatable illness.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,You have a pneumonia,\Nyou take penicillin,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,you kill the microbe,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you cure the disease.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So seductive was this idea,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,so potent the metaphor of lock and key
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and killing something,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that it really swept through biology.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It was a transformation like no other,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and we've really spent the last 100 years
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,trying to replicate that model\Nover and over again
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in noninfectious diseases,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in chronic diseases like diabetes\Nand hypertension and heart disease.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And it's worked,\Nbut it's only worked partly.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Let me show you.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,You know, if you take the entire universe
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,of all chemical reactions\Nin the human body,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,every chemical reaction\Nthat your body gets,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,most people think that that number\Nis on the order of a million.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Let's call it a million.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And now you ask the question,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,what number or fraction of reactions
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,can actually be targeted
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,by the entire pharmacopia,\Nall of medicinal chemistry?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,That number is 250.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The rest is chemical darkness.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In other words, 0.025 percent\Nof all chemical reactions in your body
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,are actually targetable\Nby this lock and key mechanism.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,You know, if you think about\Nhuman physiology
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,as a vast global telephone network
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,with interacting nodes\Nand interacting pieces,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,then all of our medicinal chemistry
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is all operating on one tiny corner
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,at the edge, the outer edge,\Nof that network.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It's like all of our\Npharmaceutical chemistry
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is a pole operator in Wichita, Kansas
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,who is tinkering with\Nabout 10 or 15 telephone lines.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So what do about this idea?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,What if we reorganized this approach?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In fact, it turns out\Nthat the natural world
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,gives us a sense of how one\Nmight think about illness
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in a radically different way,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,rather than disease, medicine, target.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In fact, the natural world\Nis organized hierarchically upwards,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,not downwards, but upwards,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and we begin with a self-regulating,\Nsemi-autonomous unit called a cell.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These self-regulating,\Nsemi-autonomous units
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,give rise to self-regulating,\Nsemi-autonomous units called organs,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and these organs coalesce\Nto form things called humans,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and these organisms ultimately live\Nin environments,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,which are partly self-regulating\Nand partly semi-autonomous.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,What's nice about this scheme,\Nthis hierarchical scheme
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,building upwards rather than downwards
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is that it allows us to think\Nabout illness as well
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in a somewhat different way.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Take a disease like cancer.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Since the 1950s, we've tried\Nrather desperately to apply
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,this lock and key model to cancer.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We've tried to kill cells using a variety\Nof chemotherapies or targeted therapies,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and as most of us know, that's worked.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It's worked for diseases like leukemia.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It's worked for some forms\Nof breast cancer,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but eventually you run\Nto the ceiling of that approach,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and it's only in the last 10 years or so
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that we've begun to think\Nabout using the immune system,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,remembering that in fact the cancer cell\Ndoesn't grow in a vacuum.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It actually grows in a human organism,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and could you use the organismal capacity,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,the fact that human beings\Nhave an immune system, to attack cancer?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In fact, it's led to the some of the most\Nspectacular new medicines in cancer.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And finally, I mean, there's the level\Nof the environment, isn't there.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,You know, we don't think of cancer\Nas altering the environment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Let me give you an example\Nof a profoundly carcinogenic environment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,It's called a prison.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,You take loneliness, you take depression,\Nyou take confinement,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you add to that,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,rolled up in a little white\Nsheet of paper,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,one of the most potent neurostimulants\Nthat we know, called nicotine,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you add to that one of the most potent\Naddictive substances that you know,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you have a pro-carcinogenic\Nenvironment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,But you can have anti-carcinogenic\Nenvironments too.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,There are attempts to create milieus,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,change the hormonal milieu\Nfor breast cancer, for instance.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We're trying to change the metabolic\Nmilieu for other forms of cancer.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Or take another disease, like depression.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Again, working others,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,since the 1960s and 1970s,\Nwe've tried, again, desperately
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to turn off molecules that operate\Nbetween nerve cells --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,serotonin, dopamine --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and tried to cure depression that way,\Nand that's worked,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,but then that leads to the limit.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And we now know that what you\Nreally probably need to do
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is to change the physiology\Nof the organ, the brain,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,rewire it, remodel it,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and that of course, we know\Nstudy upon study has shown
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that talk therapy does exactly that,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and study upon study has shown\Nthat talk therapy combined
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,with medicines, pills,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,really is much more effective\Nthan either one alone.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Can we imagine a more immersive\Nenvironment that will change depression?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Can you lock out the signals\Nthat elicit depression?
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Again, moving upwards along this\Nhierarchical chain of organization.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,What's really at stake perhaps here
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is not the medicine itself but a metaphor.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Rather than killing something,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,in the case of the great\Nchronic degenerative diseases --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,kidney failure, diabetes,\Nhypertension, osteoarthritis --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,maybe what we really need to do is change\Nthe metaphor to growing something.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And that's the key, perhaps,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to reframing our thinking about medicine.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Now, this idea of changing,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,of creating a perceptual shift,\Nas it were,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,came home to me to roost in a very,\Nvery personal matter about 10 years ago.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,About 10 years ago --\NI've been a runner most of my life --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I went for a run, a Saturday morning run,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,I came back and woke up\Nand I basically couldn't move.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,My right knee was swollen up,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and you could hear that ominous crunch\Nof bone against bone.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And one of the perks of being a physician\Nis that you get to order your own MRIs.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And I had an MRI the next week,\Nand it looked like that.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Essentially, the meniscus of cartilage\Nthat is between bone
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,had been completely torn\Nand the bone itself had been shattered.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Now, if you're looking at me\Nand feeling sorry,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,let me tell you a few facts.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,If I was to take an MRI\Nof every person in this audience,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,60 percent of you would show signs
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,of bone degeneration\Nand cartilage degeneration like this;
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,85 percent of all women by the age of 70
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,would show moderate to severe\Ncartilage degeneration;
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,50 to 60 percent of the men in\Nthis audience would also have such signs.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So this is a very common disease.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Well, the second perk of being a physician
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,is that you can get to experiment\Non your own ailments.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So about 10 years ago we began,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,we brought this process\Ninto the laboratory,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and we began to do simple experiments,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,mechanically trying\Nto fix this degeneration.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,We tried to inject chemicals\Ninto the knee spaces of animals
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to try to reverse cartilage degeneration,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and to put a short summary\Non a very long and painful process,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,essentially it came to naught.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Nothing happened.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,And then about seven years ago,\Nwe had a research student from Australia.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Now, the nice thing about Australians\Nis that they're habitually used
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,to looking at the world upside down,\Nand so -- (Laughter) --
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Dan suggested to me, "You know,\Nmaybe it isn't a mechanical problem.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Maybe it isn't a chemical problem.\NMaybe it's a stem cell problem."
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,In other words, he had two hypotheses.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Number one, there is such a thing\Nas a skeletal stem cell
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that builds up the entire\Nvertebrate skeleton:
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,bone, cartilage,\Nand the fibrous elements of skeleton,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,just like there's a stem cell in blood,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,just like there's a stem cell\Nin the nervous system,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and two, that maybe that, the degeneration\Nor dysfunction of this stem cell
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,that is causing osteochondral arthritis,\Na very common ailment.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So really the question was,\Nwere we looking for a pill
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,when we should have really\Nbeen looking for a cell.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,So we switched our models,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and now we began to look\Nfor skeletal stem cells,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and to cut again a long story short,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,about five years ago,\Nwe found these cells.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,They live inside the skeleton.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Here's a schematic and then\Na real photograph of one of them.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,The white stuff is bone,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,and these red columns that you see\Nand the yellow cells
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,are cells that have arisen\Nfrom one single skeleton stem cell,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,columns of cartilage, columns of bone\Ncoming out a single cell.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,These cells are fascinating.\NThey have four properties.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,Number one is that they live\Nwhere they're expected to live.
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,They live just underneath\Nthe surface of the bone,
Dialogue: 0,9:59:59.99,9:59:59.99,Default,,0000,0000,0000,,underneath cartilage.