Cancer is not a singular disease but a category of hundreds, even thousands, of rare diseases with different molecular signatures and genetic roots. Cancer scientists are looking for a thousand perfect keys to pick a thousand stubborn locks. Today's episode is about the hardest lock of them all: pancreatic cancer.

Cancer’s power lives in its camouflage. The immune system is often compared to a military search and destroy operation, with our T cells serving as the expert snipers, hunting down antigens and taking them out. But cancer kills so many of us because it looks so much like us. Pancreatic cancer is so deadly in part because it's expert at hiding itself from the immune system.

Now, here’s the good news. This might be the brightest moment for progress in pancreatic cancer research in decades—and possibly ever. In the past few years, scientists have developed new drugs that target the key gene mutation responsible for out of control cell growth. Recently, a team of scientists at Oregon Health and Science University claimed to have developed a blood test that is 85 percent accurate at early-stage detection of pancreatic cancer, which is absolutely critical given how advanced the cancer is by the time it’s typically caught.

And last month, a research center at Memorial Sloan Kettering published a truly extraordinary paper. Using mRNA technology similar to the COVID vaccines, a team of scientists designed a personalized therapy to buff up the immune systems of people with pancreatic cancer. Patients who responded to the treatment saw results that boggle the mind: 75 percent were cancer-free three years after their initial treatment. Not just alive, which would be its own minor miracle. But cancer-free. The mRNA vaccine, administered within a regimen of standard drugs, stood up to the deadliest cancer of them all and won. Today’s guest is the head of that research center, the surgical oncologist Vinod Balachandran.

The concept of a personalized cancer vaccine is still unproven at scale. But if it works, the potential is enormous. But again: Cancer does not exist, as a singular disease. Cancer is a category of rare diseases, many of which are exquisitely specific to the molecular mosaic of the patient. Cancers are personal. Perhaps in a few years, our cures for cancers will be equally personalized.

If you have questions, observations, or ideas for future episodes, email us at PlainEnglish@Spotify.com.

Host: Derek Thompson

Guest: Vinod Balachandran

Producer: Devon Baroldi

Links:

Cancer Vaccine paper: https://www.nature.com/articles/s41586-024-08508-4

P.S. Derek wrote a new book! It’s called 'Abundance,' and it’s about an optimistic vision for politics, science, and technology that gets America building again. Buy it here: https://www.simonandschuster.com/books/Abundance/Ezra-Klein/9781668023488

Plus: If you live in Seattle, Atlanta, or the Raleigh-Durham-Chapel Hill area, Derek is coming your way in March! See him live at book events in your city. Tickets here: The Abundance Book Tour

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