Full text of cancer detector inventor Jack Andraka’s talk: For A World Without Cancer at TEDxOrangeCoast conference.
Listen to the MP3 Audio here: For A World Without Cancer by Jack Andraka at TEDxOrangeCoast
Earlier this year, I won an international science competition.
And ever since then, a bunch of people have come up to me and asked, “How on Earth could a 15-year old have come up with a new way to detect pancreatic cancer?”
My answer: “A ton of hard work, a year and a half to be precise, and a ton of failures.”
Now, recently, I developed a novel paper sensor for the detection of pancreatic, ovarian, and lung cancer. And it’s 168 times faster, over 26,000 times less expensive and over 400 times more sensitive than the current gold standard of detection. The best part is — the best part, it costs 3 cents and takes 5 minutes to run.
Now, it all began one day when I decided to go online and start researching statistics on pancreatic cancer. We had recently lost a close family friend who was like an uncle to me who had succumbed to the disease of pancreatic cancer.
What I found was eye-opening. Over 85% of all pancreatic cancers are diagnosed late where a patient has less than 2% chance of survival. That means less than 2 people out of every 100 survive.
In addition, it has an abysmal 5 year survival rate. Only 5.5% of people will survive after 5 years. The average life span of someone with pancreatic cancer is 3 months. One of my dad’s friends actually suffered of pancreatic cancer, and a week later he was dead.
So I was wondering, why we are so bad at detecting pancreatic cancer. What I found was eye-opening and shocking to me. Our “modern medicine” is a 60 year old technique. It’s highly outdated and grossly inaccurate. It misses over 30% of all pancreatic cancers. In addition, it’s pricey. It costs $800 per test and it’s not covered by insurance. So, it’s not an option for low income patients.
In addition, pancreatic cancer is a non-symptomatic disease. That means that all of its symptoms are really general such as abdominal pain, jaundice. So, a doctor can’t easily diagnose it.
So then I started making a scientific criteria, that I would imagine a sensor that was optimal would have. It would have to be simple, sensitive, selective, rapid, inexpensive, and minimally invasive to a patient. I was pretty confident that I could create such a sensor, but I wasn’t quite sure how.
And then, I started doing a bit more research and I found out why such a technological advancement hadn’t been made. What I found is that, due to the daunting nature of discovery, no work has really been done on this. What is happening with pancreatic cancer when you diagnose it, you are looking for a cancer biomarker or a protein that’s found at higher levels in your blood stream. And this sounds really straightforward, but it is anything but.
You see, you have all this healthy blood, liters and liters of healthy blood. But, you are looking for this tiny increase in this tiny amount of protein. That’s next to impossible. Essentially, what you are doing is you are looking for a needle in a haystack. But worse, you are looking for a needle in a nearly identical stack of needles.
So then, what I did, is I began researching because I had to find some target to look at. And I started actually with a database of over 8,000 different proteins found in pancreatic cancer.
Luckily, on the 4,000th try, I finally hit gold. And I found this protein I could use. Its name was mesothelin. It is just your regular protein unless you have pancreatic, ovarian, or lung cancer. In which case, it’s found at highly expressed level, at highly over expressed like really high levels in your blood stream.
And then, the key about this protein is that it’s found early in the disease when a patient has close to 100% chance of survival. And so, if I could detect this protein, then I could hopefully cure pancreatic cancer, basically.
And then, I shifted my focus to trying to detect the protein because that was the big question. My breakthrough came in the most unlikely of places. It came in high school biology class — the absolute abhor of innovation. So I basically smuggled in this article on single walled carbon nanotubes, I had been dying to read. And a single walled carbon nanotube is essentially an atom-thick tube of carbon. That’s — just imagine a really long pipe. And it’s one 150th of the diameter of your hair. And it has these amazing properties. They are super, super cool. They are like the superheros of material science.
And then, I was trying to roll over this concept of — we were learning about — antibodies. Antibody is basically a lock and key molecule that attaches specifically to a certain protein, in this case, the mesothelin. And I was trying to combine that specific reactivity to how carbon nanotubes are really sensitive to their network of the 3 dimensional structures of their network.
And then, it hit me.
What I could do is I could put an antibody in this network such that would react specifically to the mesothelin. Then, also I would change its electrical properties based on the amount of mesothelin, enough so that I could measure it with the $50 Home Depot ohmmeter. So, pretty easy.
And just as I had this epiphany, my biology teacher storms up to me, because she spots me reading this article, snatches it out of my hand, because I was supposed to be writing an essay, then, storms off and gives me a lecture.