google-site-verification=iUxCUgpoCQNGCS2CQuHi1L8aGqyfkykwcZUHtbSwrts
top of page
< Back

CD38-Induced Apoptosis and Mitochondrial Damage is Restored by Nicotinamide in Prostate Cancer

Frontiers in Molecular Biosciences

May 23, 2022

Kanayama, Mayuko

Summary

Nicotinamide adenine dinucleotide (NAD+) is an essential molecule for living organisms. CD38 is a key NAD+-dependent enzyme which breaks down NAD+ to cyclic ADP-ribose (ADPR) and nicotinamide (NAM, vitamin B3), and NAM can be recycled to synthesize NAD+. CD38 expression is consistently silenced by methylation in prostate cancer and progressively downregulated in advanced castration-resistant prostate cancer, suggesting a connection between NAD+ and prostate carcinogenesis as well as prostate cancer progression...CD38 overexpression also dramatically reduced intracellular NAD+ levels and decreased mitochondrial respiration as measured by oxygen consumption rate. We further show that some but not all of these CD38-induced phenotypes could be rescued by exogenous NAM. Treatment of cells with NAM rescued CD38-induced apoptosis and mitochondrial stress but did not restore intracellular NAD+ levels. We also found that NAM demonstrated biphasic effect on mitochondria function, a finding that can be explained by the dual role of NAM as both a precursor of NAD+ and also as a suppressor of a number of NAD+-dependent enzymes...

Follow Us!

  • Instagram
  • Facebook
  • Twitter
Screen Shot 2022-12-28 at 9.59.55 AM.png
Photo of the site's author, Shelly Albaum - 148x200

I am Shelly Albaum, and this is my personal website and blog. All the opinions presented here are my own. Nobody writes here but me. You can read more about me here. Cookies are not required to use this website. Read more about that here. 

​

Original work © 2022 by Right of Assembly

No claim to research or any work of others

IMPORTANT DISCLOSURES

1. Health Supplements Are Not Medicines. Health Supplements that raise NAD levels, like nicotinamide riboside or other NAD precursors, are not intended to diagnose, treat, cure, or prevent any disease.

​

2. No Medical Advice. I am a lawyer and a journalist, not a doctor, and I offer no medical advice. But I do follow the science, and I can bring to your attention some interesting studies. You can read more about me here. And check with your physician -- your physician can look at this research, too.

​

3. Commercial Affiliations. I am a ChromaDex shareholder, and a marketing affiliate for Amazon and Rakuten. As a result, I will sometimes mention or recommend products that I endorse, like Tru Niagen, which I take every day. I may earn a small commission from qualifying purchases if you were referred directly from this site and completed a purchase. [Thank you!] You can read more about our advertising, privacy, and data collection policies here

bottom of page