What is haploidentical allogeneic stem cell transplant?
A haploidentical transplant is a type of allogeneic transplant. It uses healthy, blood-forming cells from a half- matched donor to replace the unhealthy ones. The donor is typically a family member. For allogeneic transplants, your doctor tests your blood to find out your human leukocyte antigen (HLA) type.
What is HLA haploidentical?
DEFINITIONS. An HLA-haploidentical donor is one who shares, by common inheritance, exactly one HLA haplotype with the recipient and is mismatched for a variable number of HLA genes, ranging from zero to six (HLA-A, -B, -C, -DRB1, DQB1, and -DPB1), on the unshared haplotype.
What is allogeneic hematopoietic stem cell?
An allogeneic stem cell transplant uses healthy blood stem cells from a donor to replace bone marrow that’s not producing enough healthy blood cells. An allogeneic stem cell transplant is also called an allogeneic bone marrow transplant. A donor may be a family member, an acquaintance or someone you don’t know.
What is myeloablative allogeneic stem cell transplantation?
Myeloablative (high-intensity) stem cell transplant uses high doses of chemotherapy and may use radiation therapy to destroy cancer cells. In this process, bone marrow/stem cells are also destroyed. Patients receive an infusion of new stem cells to rebuild blood and the immune system.
What is the difference between an autologous and allogeneic bone marrow transplant?
Autologous: Auto means self. The stem cells in autologous transplants come from the same person who will get the transplant, so the patient is their own donor. Allogeneic: Allo means other. The stem cells in allogeneic transplants are from a person other than the patient, either a matched related or unrelated donor.
Which is better HLA matched sibling or haploidentical transplantation?
HLA-matched sibling donors (MSDs) remain the best donor source because of rapid hematopoietic and immunologic reconstitution and lower incidences of infections and acute graft-versus-host disease (GVHD), but only 25–30% of patients can undergo HLA-matched sibling donor transplantation (MSDT).
What is allogeneic haematopoietic stem cell transplantation?
A procedure in which a patient receives healthy blood-forming cells (stem cells) from a donor to replace their own stem cells that have been destroyed by treatment with radiation or high doses of chemotherapy.
What is the difference between autologous and allogeneic?
What is the difference between myeloablative and Nonmyeloablative?
Non-myeloablative transplants differ primarily in what happens prior to the transplant. Compared to myeloablative transplants, mini-transplants use much lower and less toxic doses of chemotherapy and radiation, followed by the infusion of donor stem cells.
What does Myeloablative mean?
Listen to pronunciation. (MY-eh-loh-a-BLAY-shun) A severe form of myelosuppression. Myelosuppression is a condition in which bone marrow activity is decreased, resulting in fewer red blood cells, white blood cells, and platelets.
Are siblings the best match for bone marrow?
A brother or sister is most likely to be a match. There is a 1 in 4 chance of your cells matching. This is called a matched related donor (MRD) transplant. Anyone else in the family is unlikely to match.