Related Experiment Videos
[Novel autograft method using positive selection of CD34 stem cells]
M Lambermont1, O Pradier, J P Delville
1Centre de Transfusion, Hôpital Erasme, Bruxelles.
Revue Medicale De Bruxelles
|November 1, 1995
Summary
High-dose chemotherapy uses autologous blood stem cell rescue. Purifying CD34+ stem cells allows mini grafts and purging tumor cells, aiding relapse prevention in cancer patients.
Area of Science:
- Hematology
- Immunology
- Oncology
Context:
- High-dose chemotherapy with autologous blood stem cell rescue is a standard treatment for hematologic malignancies and solid tumors.
- Positive selection of CD34+ stem cells using monoclonal antibodies and avidin biotin immunoabsorption has emerged as a novel technique.
Purpose:
- To report the experience of CD34+ stem cell selection and transplantation.
- To evaluate the efficacy of CD34+ cell enrichment and its impact on hematological recovery and tumor cell purging.
Summary:
- Twelve stem cell selections and ten grafts were performed.
- Achieved a 1.9 log enrichment of CD34+ cells (72% purity) and a 1.6 log concentration of CFU-GM cells.
- Hematological recovery in ten transplanted patients was comparable to non-selected stem cells.
Impact:
- CD34+ cell purification enables mini graft infusions.
- This technique aids in purging residual tumor cells, potentially reducing relapse rates after autologous stem cell transplantation.