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A World Without Cancer: Jack Andraka at TEDxRedmond

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    (Video Presenter): And, the winner
    of the 75,000 dollar 2012 Gordon E. Moore Award
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    in the category
    of Medicine and Health Sciences,
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    (Cheers)
    (Applause)
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    the grand prize winner,
    Jack Thomas Andraka.
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    (Cheers)
    (Applause)
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    (Trumpets)
    (Applause)
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    And, now, ladies and gentlemen,
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    (Applause)
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    it is my honor to present to you
    the top award winners
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    of 2012 Intel International Science and Engineering Fair
    (Applause)
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    (Laughter)
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    Jack Andraka: So there I am.
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    No, that was the entire talk, bye.
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    We have been talking a lot
    about this thing called cancer.
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    It's really near and dear to all of us.
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    But, imagine a world without cancer.
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    What if there was a sensor
    that was like a diabetes test strip
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    that could detect cancer
    for less than 3 cents in 5 minutes.
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    Imagine a 168 times faster,
    over 26,000 times less expensive,
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    and over 400 times more sensitive.
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    Well, I created such a strip.
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    Basically, I was motivated to do this
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    because I had a close family member
    that passed due to pancreatic cancer.
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    It's a really devastating disease.
    It's the death sentence basically.
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    You can see that, after 5 years,
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    only 5.5 percent of people
    who are initially diagnosed, will survive.
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    That is a staggering statistics.
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    Why as a society
    that is so technologically advanced --
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    should this statistic be acceptable to us.
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    So, then, I got really interested
    and I started doing a bit of research.
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    What I found is that there are
    these certain proteins.
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    They are found in your blood
    at higher concentrations
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    when you have pancreatic cancer.
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    I was looking at one, called mesothelin.
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    It's highly overexpressed by pancreatic cancer
    as well as [at] the early stages.
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    Where, if you can find it in those stages,
    then it has close to a 100% survival rate
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    rather than 5.5%.
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    But, also a main problem
    with our current diagnostic test
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    for pancreatic cancer --
    it's grossly inaccurate.
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    It diagnoses like, for example,
    inflamation of your pancreas.
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    That to me is unacceptable.
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    A 70% sensitivity
    and less than that for specificity --
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    [Which] means it gives
    tons of false positives and false negatives.
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    So then, through these really cool things
    called carbon nanotubes --
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    They are the superheros
    of material science.
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    There are these atom-thick tube of carbon
    and they have these fantastic properties.
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    So, I am super interested in that.
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    I began formulating an idea
    in unlikely place, biology class.
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    We were learning about antibodies
    which are basically lock and key molecules
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    that bind specifically
    to a certain protein.
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    In this case,
    the cancer biomarker, mesothelin.
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    Then, I had an idea.
    I was reading this paper
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    in biology class
    -- about carbon nanotubes --
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    I knew about this protein, mesothelin,
    and we were learning about antibodies.
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    It is kind of like a connect-the-dots puzzle
    where you form a draft
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    where in this case it is like a sensor.
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    So, here is the idea I came up with.
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    You have a network of the single walled
    carbon nanotubes and antibodies.
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    What happens is --
    when you put a blood sample
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    that contains that target protein in it
    on this network,
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    that protein will go into the network
    and form a larger molecule with that antibody.
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    This causes an electrical change
    in the sensor.
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    I can actually measure this
    with a 50 dollar ohmmeter from Home Depot.
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    And it is really easy to produce.
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    All you do is to create
    uniform dispersion out of these.
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    You mix it up with
    these carbon nanotubes and this antibody.
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    You just dip stick that is
    like a piece of filter paper.
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    It's really, really simple.
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    Then, you dry it
    and you use it for a certain time.
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    That's not that hard.
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    You just measure it
    with this 50 dollar ohmmeter.
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    It requires less than a sixth
    of the drop of blood.
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    It is a tiny prick to your finger.
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    What you have to do for detecting a disease
    such as pancreatic cancer [is] --
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    when a protein is overexpressed
    you have to set a cutoff level.
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    If it's above this, then,
    it's at an abnormally high level.
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    If't is below that, then,
    it's kind of normal and you are OK.
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    So, I choose mine
    as 10 nano grams per mL.
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    A nano gram is a tiny amount.
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    Think it of as one billionth.
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    So, pretty small.
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    Then, essentially what I did is, I had to test
    whether my sensor was actualy working.
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    I took about 100 patients
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    who had pancreatic cancer
    ranging in its stage.
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    You can see they are all above this 20 ng.
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    That's well above the 10 ng per mL cutoff.
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    So, I had a 100 percent sensitivity.
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    Them, I had negative cancer samples,
    healthy patients.
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    People who did not have pancreatic cancer,
    maybe some other condition.
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    Those are all below 10 ng for mL.
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    That means that is not giving any false positives
    or any false negatives.
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    That means a 100% accuracy
    as [its] diagnosis.
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    This has the potential
    to save thusands of lives,
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    reshaping how we think of
    cancer diagnostics.
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    In addition to this, what happens is this --
    also I found we could look at
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    how effective a chemotherapeutic treatment
    or a regimen
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    as well as how effective your surgery is.
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    You can see it here that
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    for each of different chemotherapeutic drugs
    -- I tested five on mouse models --
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    they all have different levels of mesothelin.
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    So, you could effectively see how effective
    your cancer drug treatment is.
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    You could look at
    drug resistance, for example.
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    With this, I have created a sensor
    that can detect pancreatic cancer.
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    It is very simple. It is very rapid
    -- taking 5 minutes for 3 cents.
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    It's non invasible.
    It's sensitive and selective.
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    But in addition, compared to the current gold standard
    of pancreatic cancer detection,
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    it is a 168 times faster,
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    over 26,000 times less expensive
    and over 400 times more sensitive.
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    That is not actually, including --
    that you need specific practice
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    like a university training
    in order to conduct that gold standard,
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    as well as it requires this expensive bulky machine
    to read this thing called ELISA.
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    Whilst mine, it's a 50 dollar ohmmeter
    from Home Depot.
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    Also, the protein I am detecting,
    called mesothelin,
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    it is overexpressed
    in both ovarian and lung cancer.
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    Through this sensor, [that] is a generic sensor
    for those two cancers,
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    but also implications are that certain protein
    is found in 40 different types of cancer.
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    This sensor, is detecting
    nearly every form of cancer.
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    This has limitless applications.
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    What happens is you just change
    this antibody in the sensor,
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    you can detect anything, any protein.
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    That means other forms of cancer,
    other diseases
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    such as E Coli, Rotavirus, Salmonella,
    and those HIV, AIDS.
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    All those cancers and diseases
    are plague us.
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    Thusands, millions, billions of lives
    can be saved with this technology.
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    Also, it can look at
    how effective our treatment is.
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    So, this will reshape
    how we think of medicine.
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    We will now have
    a simple diabetic test strip
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    that can detect your disease
    in 5 minutes for 3 cents,
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    but also tell you how to optimally
    cure the disease and treat it.
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    And, so --
    Oh, two slides are missing.
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    My final conclusion,
    what I am leaving you with,
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    is that I am not the only one
    who can do this.
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    Anyone can.
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    It just took me 200 emails
    and a bunch of hardwork to do it,
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    but that is a different story.
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    But, you just have to ask yourself.
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    Imagine a world -- or what if --
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    you can become like me and hopefully
    have a very happy running up to a stage.
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    Thank you.
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    (Applause)
Title:
A World Without Cancer: Jack Andraka at TEDxRedmond
Description:

Jack Andraka is a 15-year-old high school student, has invented a novel, non-invasive paper sensor to detect pancreatic, ovarian, and lung cancer before they become invasive, for only 3 cents in 5 minutes (no specialized training or bulky equipment needed).

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Video Language:
English
Team:
closed TED
Project:
TEDxTalks
Duration:
08:34

English subtitles

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