Related Experiment Videos
Bone marrow transplantation in five children with sickle cell anaemia
C Vermylen1, E Fernandez Robles, J Ninane
1Department of Paediatrics, Cliniques Universitaires Saint-Luc, Brussels, Belgium.
Insights
Allogeneic bone marrow transplants successfully treated severe sickle cell anaemia in children. Patients experienced no more pain crises or red blood cell breakdown, with donor cells confirmed.
Area of Science:
- Hematology
- Pediatric Medicine
- Immunology
Background:
- Sickle cell anaemia is a severe inherited blood disorder causing debilitating pain crises and organ damage.
- Allogeneic bone marrow transplantation offers a potential cure but faces challenges like graft rejection.
Purpose of the Study:
- To evaluate the efficacy and safety of HLA compatible allogeneic bone marrow transplantation for severe sickle cell anaemia in children.
Main Methods:
- Five children with severe sickle cell anaemia received HLA compatible allogeneic bone marrow transplants.
- Engraftment, clinical outcomes, haemoglobin electrophoresis, and cytogenetic studies were monitored.
Main Results:
- Four out of five children achieved rapid and sustained engraftment.
- The fifth child experienced graft rejection but had an uneventful recovery after a second transplant.
- All patients showed complete cessation of vaso-occlusive episodes and haemolysis.
- Post-transplant haemoglobin patterns and cytogenetic analyses confirmed donor cell engraftment.
Conclusions:
- Allogeneic bone marrow transplantation is a highly effective treatment for severe sickle cell anaemia in children.
- Successful engraftment leads to complete resolution of disease symptoms.
- Graft rejection is a manageable complication, with re-transplantation offering a viable solution.
Abstract:
Five children with severe sickle cell anaemia underwent an HLA compatible allogeneic bone marrow transplantation. In four children the engraftment was rapid and sustained. The fifth child rejected the bone marrow graft and required a second bone marrow transplantation 62 days after the first one. The outcome was then uneventful. In all cases there was complete cessation of vaso-occlusive episodes and haemolysis. The haemoglobin electrophoretic pattern became similar to that of the donor (AA or AS) and cytogenetic studies in three patients confirmed the donor origin of bone marrow cells.