Provided herein are methods of treatment comprising administering to a subject, e.g., a human subject, mononuclear cells from human placental perfusate and hematopoietic cells, and compositions comprising them, and their uses to establish chimerism, engraft tissue (e.g., blood), reduce the severity or duration of graft versus host disease, and treat or ameliorate symptoms of metabolic disorders and hematologic disorders, such as hematologic malignancies.
