Ep. 47: Why Dezawa MuseCells® Are Different: Understanding the Science

Why Dezawa MuseCells Are Different: Understanding the Science

At STEMS Health, Drs. Ankeet Choxi and Jarred Mait get asked this question in almost every consultation. Aren't Muse cells just mesenchymal stem cells with a different name? The short answer is no, and the difference actually matters quite a bit.

Mesenchymal stem cells, or MSCs, are one of the most widely used cell types in regenerative medicine. They come from places like bone marrow and fat tissue, and they mostly work through signaling, calming inflammation and encouraging the surrounding tissue to repair itself. For a long time, researchers treated a batch of MSCs as one uniform population. But Professor Mari Dezawa's research showed that is not quite accurate. Hidden inside those MSC cultures is a smaller subpopulation of cells that behave very differently, and that subpopulation is what we now call Muse cells.

The first thing that sets them apart is stress tolerance. In the lab, Muse cells can survive conditions that would normally kill a cultured cell, things like oxygen deprivation, harsh enzymatic processing, and extended nutrient starvation. That resilience is part of what makes them consistent to work with during manufacturing.

The second big difference is differentiation capacity. Standard MSCs generally turn into a narrower set of cell types, mostly bone, cartilage, and fat. Muse cells have been shown in published research to differentiate into cell types representing all three embryonic germ layers, a trait usually associated with pluripotent stem cells. And unlike embryonic stem cells or induced pluripotent stem cells, Muse cells occur naturally in the body and do not require genetic reprogramming, which is part of why published research has not shown the tumor risk associated with some other pluripotent cell types.

Then there is tissue homing. This is one of the more remarkable behaviors described in the literature. When introduced into the body, Muse cells appear to migrate toward damaged tissue on their own, responding to signals released by the injury itself, rather than distributing randomly. Researchers are still studying exactly how significant this is for different conditions, but it is one of the main reasons this cell type continues to draw so much scientific attention.

None of this means every product labeled as a Muse cell is the same. Isolating this specific subpopulation requires a validated process, and not every manufacturer follows it. That is exactly why Drs. Choxi and Mait spend time walking patients through where their specific product actually comes from, rather than relying on a name alone.

If you want to understand how these differences apply to your own treatment options, reach out to STEMS Health and set up a real conversation with our team.