Memorial Sloan Kettering Cancer Center Apr 16 2025 A stem cell–based therapy initially developed at Memorial Sloan Kettering Cancer Center (MSK) may lead to a new treatment for advanced Parkinson's disease, according to results from a phase 1 clinical trial reported in Nature . The treatment involved creating nerve cells (neurons) derived from embryonic stem cells and transplanting them into the brains of 12 Parkinson's patients. The injected cells produce a chemical called dopamine, which