Different kinds of stem cells can be engineered to secrete molecules that are known to reduce some of the symptoms of Huntington’s disease. Scientists are working to see if transplanting these cells can treat animal models of Huntington’s disease. Hopefully, this will progress to clinical trials in patients quickly.
After a heart attack, many patients are left with scar tissue around the heart. Scientists are using heart stem cells to promote the self-repair of the heart. In some cases, these can be delivered by the blood instead of being injected directly into the heart. Clinical trials are underway now to test this approach.