Compound Type
Stem Cell Derived
Last updated
A preparation made from what cultured stem cells release rather than from the cells themselves: the fluid they were grown in, the mixture of proteins and signalling molecules within it, or the small membrane-bound packets called exosomes. The material is a mixture rather than a defined molecule. What is in it depends on the cell line and the culture conditions, which is why two preparations under the same name can differ.
Why it matters here
There is no single active ingredient to state on the record, so quantity is given as particle count or total protein rather than as an amount of anything in particular, and batches are not interchangeable the way two vials of a synthesised peptide are.
What it is not
Exosomes are not stem cells and contain none, so a product sold as stem cell therapy and one sold as exosomes are different things with different regulatory standing. Conditioned media and secretome are not exosomes either: they are the whole culture fluid, of which exosomes are one purified fraction, and sales copy treats the three as synonyms when they are not.
Also called
- stem cell derived
- exosome
- secretome
- conditioned media
Conditioned media is the fluid the cells were grown in, secretome is everything they released into it, and exosome is one fraction of that. All three resolve here, but they name progressively narrower things.
Compounds carrying this term
None on file yet. This term is in the controlled vocabulary but no compound record currently uses it — which is a statement about our coverage, not about the term.