This study demonstrated that small extracellular vesicles from Wharton’s jelly mesenchymal stem cells can suppress T cell activity through the PD-L1 pathway. This has significant implications for treating autoimmune diseases and managing transplant rejection.

The research illustrates how exosomes can be used to precisely modulate the immune system, offering a targeted regenerative approach for immune-related conditions.

This is a research reference from our clinical library. Approved by the Chambers Clinic Team — last reviewed May 28, 2026.