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The Peter Attia Drive

#112 - Ned David, Ph.D.: How cellular senescence influences aging, and what we can do about it

The Peter Attia Drive

Peter Attia, MD

Medicine, Health & Fitness, Fitness

4.39K Ratings

🗓️ 1 June 2020

⏱️ 136 minutes

🧾️ Download transcript

Summary

Ned David is the co-founder of Unity Biotechnology, a company developing senolytic medicines—molecules that target and destroy senescent cells in the human body. In this episode, Ned explains the science of cellular senescence and how it impacts the aging process. Ned discusses how senolytics may delay, prevent, treat, or even reverse age-related diseases, including cancer, cardiovascular disease, and neurodegenerative disease. As a serial entrepreneur, Ned also provides advice on how to transform a simple idea into the creation of a company.

 

We discuss:

  • Defining longevity and the principles of aging [2:50];
  • The control knobs of aging and how we can turn them [15:10];
  • Role of cellular senescence in aging and cancer [27:00];
  • History of senescence in scientific study [40:30];
  • The cellular senescence paradox [46:00];
  • Developing medicines that target cellular senescence [52:15];
  • Ned's lessons on risk analysis in business [1:05:15];
  • The search for a molecule that could eliminate senescent cells [1:15:15];
  • Senescent cell elimination example in osteoarthritic knees [1:30:30];
  • Extending lifespan by removing senescent cells [1:45:00];
  • Senolytic molecule example in macular degeneration reversal [1:52:30];
  • The future of senescent cell targeting [1:58:30];
  • The role of cellular senescence and metabolic syndrome [2:01:30];
  • The role of cellular senescence and brain health [2:03:30]
  • What prepared Ned to start Unity Biotechnology [2:05:45];
  • Advice for someone deciding between business and academics [2:08:50]; and
  • More.

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Show notes page for this episode:  https://peterattiamd.com/neddavid

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Transcript

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0:00.0

Hey everyone, welcome to the Drive Podcast.

0:13.0

I'm your host, Peter Atia.

0:14.8

This podcast, my website, and my weekly newsletter, all focus on the goal of translating

0:18.7

the science of longevity into something accessible for everyone.

0:22.4

Our goal is to provide the best content in health and wellness, full stop, and we've

0:26.6

assembled a great team of analysts to make this happen.

0:29.4

If you enjoy this podcast, we've created a membership program that brings you far more

0:33.2

in-depth content if you want to take your knowledge of the space to the next level.

0:37.3

At the end of this episode, I'll explain what those benefits are, or if you want to learn

0:41.0

more now, head over to peteratiamd.com forward slash subscribe.

0:46.3

Now without further delay, here's today's episode.

0:51.0

My guess this week is Ned David.

0:53.2

Ned is the president of Unity Biotechnology, a company that he co-founded in 2011.

0:58.5

In this episode, we're going to talk a little bit about Unity, but more importantly, we

1:02.4

talk about the science upon which Unity is developed.

1:06.6

And that is the science of senescence, or cellular senescence.

1:10.2

We begin this episode by putting that into context.

1:13.9

I think if you're interested in the space of longevity, you're listening to this podcast,

1:17.6

you've undoubtedly heard the term senescence, but it might not mean much to you.

1:21.8

And I think what Ned does a great job of here is explaining not just senescence, but

1:26.6

where it fits in the overall lattice, if you will, of all of the different cellular processes

1:32.8

that occur during aging.

...

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