On May 4th, 2023 Stanford is hosting a one day "Cellular Immunotherapy Symposia". One of the major obstacles to the implementation of stem cell therapies is overcoming allogeneic immune rejection which is a major topic of discussion of the symposium. Different strategies to overcome this barrier will be presented, including the use of hematopoietic mixed chimerism, T regulatory cell populations, immune shielding by removing MHC or other immune molecules and other approaches. In addition, stem cell therapies themselves can be used for inducing immune tolerance including hematopoietic mixed chimerism, and stem-cell like T regulatory cell and immune cell therapies. Stem cell therapies for a number of diseases will be discussed including organ and islet transplantation, Type 1 diabetes, multiple sclerosis, rheumatoid arthritis, pemphigus, scleroderma, GAD65 disease, among others.