At Stem Cell Therapy Argentina®, our commitment is to offer regenerative medicine treatments that prioritize safety, efficacy, and scientific evidence. One of the most common methods for administering stem cells is intravenous (IV) infusion, but recent research has revealed serious drawbacks to this approach, especially when using donor stem cells, such as those derived from umbilical cord blood. In this blog, we will explore why autologous stem cells (from the patient’s own body) are the safest choice and how our clinic distinguishes itself through its cutting-edge scientific and technological approach to applying them directly to the lesion, such as in knee osteoarthritis.
The Problem of the First-Pass Pulmonary Effect
When stem cells are administered intravenously, many people assume that these cells travel directly to damaged tissues to repair them. However, a phenomenon known as the pulmonary first-pass effect reveals a different reality. Studies have shown that the majority of IV-injected stem cells become trapped in the lungs (95%), where they encounter an adverse immune response. This process not only limits their ability to reach the target area but, in the case of donor (allogenated) cells, can trigger a significant inflammatory response.
A study published in 2023 examined what happens when human umbilical cord stem cells are injected intravenously into an animal model. The results are concerning: the cells not only become trapped in the lungs but are also rapidly eliminated by the immune system, raising serious questions about the efficacy and safety of this method.
The War in the Lungs: Allogeneic Stem Cells vs. Immune System
The study found that, shortly after intravenous infusion, umbilical cord stem cells trigger an innate inflammatory response in the lungs. Macrophages, immune system cells responsible for eliminating foreign bodies, begin to attack these allogeneic cells, recognizing them as invaders. Within 24 hours, most of the injected cells are destroyed through a process called epherocytosis, where macrophages engulf and eliminate them.
This process not only reduces the number of cells available to exert a therapeutic effect, but it can also trigger an initial inflammatory reaction that, in some cases, could worsen the problem rather than resolve it. Although some researchers suggest that the dead cells may have an immunomodulatory effect, the mechanisms behind this are unclear, and the results can vary depending on the patient’s condition.
Allogeneic Cells: Immune-Privileged or Problematic?
For a long time, allogeneic stem cells were believed to be “immunoprivileged,” meaning they could evade the recipient’s immune system. However, numerous studies have disproven this idea, demonstrating that donor cells are recognized as foreign and trigger an immune response. In the case of intravenous infusions, this reaction is particularly intense in the lungs, where the cells become trapped and are rapidly eliminated (the same occurs with intravenous autologous stem cells).
Furthermore, the study indicates that the inflammatory reaction is not solely due to the cells being of a different species (in this case, human cells in an animal model), but also to their presence in an unusual location, such as the bloodstream. This triggers an instant blood-mediated inflammatory response (IBMIR), which activates platelets, coagulation, and the complement system, rapidly destroying the injected cells.
Why are autologous cells the best option?
At Stem Cell Therapy Argentina®, we exclusively use autologous stem cells directly into the joint, tendon, or ligament injury. These cells are extracted from the patient themselves to avoid the risks associated with allogeneic cells. Unlike donor cells, autologous cells do not trigger an immune response because they are recognized as the body’s own. This means that:
- Greater effectiveness: Autologous cells have a greater chance of reaching the target tissues and exerting their regenerative effect without being destroyed.
- Greater safety: By eliminating the risk of rejection or unwanted inflammation, we guarantee a safer and more predictable treatment.
- Biosafety guaranteed: Our procedures comply with international standards and we do not use donor cells or exosomes, which are not FDA approved due to safety concerns.
Stem Cell Therapy Argentina®: Quality and Technology that Make the Difference
Choosing the right regenerative medicine treatment requires thorough research into clinical practices. At Stem Cell Therapy Argentina®, we distinguish ourselves through our commitment to scientific and technological excellence.
- Science-backed procedures: Our protocols are validated by research and presentations at international conferences, ensuring evidence-based results.
- High-quality imported supplies: We use certified materials that meet the highest biosafety standards, avoiding any risk to our patients.
- State-of-the-art technology: We have cell counters, hematological equipment and certified BTL technology, such as the high-intensity BTL 6000 laser and focused shock waves, which optimize the effectiveness of our therapies.
- Strict quality controls: We operate under GMP (Good Manufacturing Practices) standards, ensuring that every step of the process is safe and standardized.
- Personalized approach: Led by Dr. Matías Fernández Viña, our team designs customized treatments for each patient, maximizing results.
Our exclusive Hyperconcentrated PRP® formula, with a platelet concentration up to 10 times higher than the standard, complements our cell therapies, offering a comprehensive solution for orthopedic, degenerative conditions and more.
Avoid the Risks of Unregulated Clinics
Unfortunately, many clinics secretly promote allogeneic stem cell treatments, suggesting this option to patients. These cells may be imported from Chile or Mexico and administered intravenously, often without proper regulation or scientific evidence to support their practices. These clinics may offer very expensive solutions, but the risks include unwanted inflammation, ineffective results, and, in some cases, very serious complications. At Stem Cell Therapy Argentina®, we offer you the peace of mind of a safe and effective treatment backed by over 1,000 successful procedures using your own mesenchymal stem cells.
Conclusion: Your Health Deserves the Best
Regenerative medicine has transformative potential, but not all treatments are created equal. Allogeneic stem cells administered intravenously face serious challenges, such as the pulmonary first-pass effect and immune response, which limit their efficacy and safety. At Stem Cell Therapy Argentina®, we are committed to autologous stem cells and cutting-edge technology to offer you real results without compromising your well-being.
If you are considering regenerative medicine treatment, we invite you to contact us for a personalized consultation. Discover how our expertise, backed by science and innovation, can help you regain your quality of life with the confidence you deserve.
