Current medical practice for sickle cell anemia involves mobilizing and harvesting the patient's bone marrow stem cells, often stimulated by medication.

“well one of the promises of Gene editing is that it can provide a single treatment that is a cure for the disease and so in the case of CLE cell what uh what happens is that uh the doctor will mobilize the stem cells the bone marrow cells from the patient get them to come out and be able to harvest these bone marrow cells and they don't necessarily do this with a marrow aspirate they do it by giving them medications that cause them to secrete more progenitor cells into the plasma”