Related Experiment Videos
Immunomagnetic purging of bone marrow: a model for negative cell selection.
1Department of Pediatrics, JHM Health Center, University of Florida, Gainesville 32610.
The American Journal of Pediatric Hematology/Oncology
|January 1, 1990
Summary
Immunomagnetic purging effectively removes cancer cells from bone marrow for autologous bone marrow transplantation (ABMT). This technique is considered standard of care for neuroblastoma patients undergoing ABMT due to its safety and efficacy.
Area of Science:
- Oncology
- Immunology
- Biotechnology
Background:
- Autologous bone marrow transplantation (ABMT) requires effective methods for removing cancer cells from patient marrow.
- Existing purging techniques are broadly categorized as immunological or pharmacological.
Purpose of the Study:
- To evaluate the efficacy and safety of the immunomagnetic purging technique for cancer cell removal in ABMT.
- To determine the clinical applicability of immunomagnetic purging for various cancers.
Main Methods:
- The immunomagnetic technique utilizes monoclonal antibodies and magnetized microspheres to target and magnetically remove cancer cells.
- Laboratory studies assessed cancer cell removal efficiency and preservation of normal hematopoietic cells.
- Clinical studies involved hundreds of neuroblastoma patients and smaller cohorts of other cancer patients.
Main Results:
- Laboratory studies demonstrated high efficiency in selectively removing neuroblastoma and acute lymphoblastic leukemia cells.
- Clinical studies across multiple cancer types suggest the technique is safe and effective for ABMT.
- Adequate numbers of normal hematopoietic cells were retained for successful reinfusion.
Conclusions:
- Immunomagnetic purging is a clinically safe and effective method for cancer cell removal in ABMT.
- The technique is currently considered the standard of care for neuroblastoma patients undergoing ABMT.
- Further clinical trials are needed to compare ABMT with and without in vitro marrow purging.