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Dr. David Fajgenbaum

๐Ÿ‘ค Speaker
1737 total appearances

Appearances Over Time

Podcast Appearances

Radiolab
The Medical Matchmaking Machine

So I had, you know, about four months between getting out of the hospital and making it to our wedding day.

Radiolab
The Medical Matchmaking Machine

Like if you last that long.

Radiolab
The Medical Matchmaking Machine

If I last that long.

Radiolab
The Medical Matchmaking Machine

Yeah.

Radiolab
The Medical Matchmaking Machine

Exactly.

Radiolab
The Medical Matchmaking Machine

So I saw all those samples and I started doing something called serum proteomics where the idea is you measure 1,000 different things in your blood or 1,000 analytes or proteins in your blood and then we did something called pathway analyses where we try to understand what are the signals in the blood that are coming from these proteins being up or down.

Radiolab
The Medical Matchmaking Machine

I did something called flow cytometry to look to see which of my immune cells were turned off and turned on

Radiolab
The Medical Matchmaking Machine

And then cytokine panels where we measure these 13 different proteins and their changes in the blood.

Radiolab
The Medical Matchmaking Machine

And what emerged was that my mTOR was in overdrive.

Radiolab
The Medical Matchmaking Machine

And mTOR is a communication line your immune system uses to turn on, to turn off, to proliferate.

Radiolab
The Medical Matchmaking Machine

And

Radiolab
The Medical Matchmaking Machine

When I saw that result, I immediately remembered that there's a drug called serolimus, the other name for it's rapamycin, that is really good at turning mTOR off.

Radiolab
The Medical Matchmaking Machine

It's an mTOR inhibitor.

Radiolab
The Medical Matchmaking Machine

So like I saw the result and it's like mTOR is on and I was like, oh my gosh, isn't there a great mTOR inhibitor?

Radiolab
The Medical Matchmaking Machine

Wait, rapamycin?

Radiolab
The Medical Matchmaking Machine

Rapamycin is the drug that saved my life.

Radiolab
The Medical Matchmaking Machine

And I love that story.

Radiolab
The Medical Matchmaking Machine

I listened to that story, and I love that story.

Radiolab
The Medical Matchmaking Machine

And, of course, it's found on the island of Rapa Nui.

Radiolab
The Medical Matchmaking Machine

It was hidden in a freezer in Canada.