Culture-Expanded MSCs
One of the most common questions in regenerative medicine, and an active frontier of research.
What they are
Mesenchymal stem cells (MSCs) can be grown in a laboratory, or “culture-expanded,” to far greater numbers than a same-day preparation from your own body can yield.
Where it stands
In the United States, culture-expanded cells are regulated as a drug. They are not offered as routine care, and are appropriately available only within an approved clinical trial. Dr. Paul follows this frontier closely and is involved in clinical research on culture-expanded MSCs — a trial with Cellcolabs, run through Physical Longevity.
Dr. Paul’s role
Dr. Paul engages this frontier as an investigator. He sees the protocols, the adverse-event reports, and the results first-hand. When a patient asks him about culture-expanded cells, the answer comes from inside the research.
Part of the ecosystem
Dr. Paul’s regenerative research connects a wider network: Physical Longevity and TOBI Networks.
Common questions
Asked and answered
What are culture-expanded MSCs?
Mesenchymal stem cells (MSCs) can be grown in a laboratory, or “culture-expanded,” to far greater numbers than a same-day preparation from your own body can yield.
Are culture-expanded MSCs available as a treatment?
In the United States, culture-expanded cells are regulated as a drug. They are not offered as routine care, and are appropriately available only within an approved clinical trial — Dr. Paul is involved in clinical research on culture-expanded MSCs, a trial with Cellcolabs run through Physical Longevity.
Does Dr. Paul offer culture-expanded MSC treatment?
Not as a treatment. He is an investigator in active clinical research — a trial with Cellcolabs, run through Physical Longevity.
Do stem cell injections work?
It depends entirely on which cells, for which problem. Same-day preparations from your own body — bone marrow concentrate and PRP — are what Dr. Paul actually offers, and they have real evidence for specific diagnoses and none for others. Culture-expanded cells are a separate question and remain in research. Any answer that does not name the cells and the diagnosis is not a real answer.
What does culture-expanded stem cell therapy cost?
Nothing here, because it is not sold here. Culture-expanded cells are available only inside an approved clinical trial, and a trial is not a purchase. If a clinic quotes you a price for culture-expanded stem cells in the United States, that is worth asking hard questions about.
Can I get culture-expanded stem cells abroad?
Clinics in other countries do offer them, under different rules. Before going, ask what is being administered, how it was grown and characterized, what is published on that specific preparation, and who handles complications and follow-up after you return. Dr. Paul will talk it through honestly, and he does not refer patients abroad for it.
Dr. Paul in the literature
Selected peer-reviewed work
- Centeno C, Burnham R, Paul RV, Le A, Malanga G, Freeman M. Regarding “Intra-articular Mesenchymal Stromal Cell Injections Are No Different From Placebo in the Treatment of Knee Osteoarthritis.” Arthroscopy. 2021;37(5):1361–1362. doi.org/10.1016/j.arthro.2021.02.026
Educational information, not medical advice or a diagnosis. Culture-expanded MSCs are available only within an IRB-approved clinical trial; nothing here is an offer of a specific treatment, and results vary.