Related Experiment Videos
Newer approaches in treating chronic myelogenous leukemia
1Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York 10021.
Stem Cells (Dayton, Ohio)
|October 1, 1993
Summary
Allogeneic bone marrow transplantation (BMT) shows promise for chronic myelogenous leukemia (CML). Culturing patient stem cells in gas-permeable bags supports normal cell growth over CML, offering a potential treatment strategy.
Area of Science:
- Hematology
- Cancer Biology
- Stem Cell Research
Background:
- Allogeneic bone marrow transplantation (BMT) is a recognized treatment for chronic myelogenous leukemia (CML).
- Alternative strategies are needed for CML patients lacking suitable donors, focusing on autologous hematopoietic stem cells.
- Long-term bone marrow culture (LTBMC) has shown preferential recovery of normal hematopoietic progenitors over the CML clone.
Purpose of the Study:
- To investigate the efficacy of LTBMC in gas-permeable plastic bags for hematopoietic stem cell expansion.
- To explore methods for sustained stem cell growth without feeder layers.
- To evaluate the potential of combining pre-transplant chemotherapy with cultured bone marrow for CML treatment.
Main Methods:
- Utilizing gas-permeable "Lifecell" bags for LTBMC, enabling cell incubation without feeder layers.
- Incubating cells with various growth factors to optimize stem cell expansion.
- Investigating marrow growth from CML patients.
Main Results:
- Sustained hematopoietic stem cell growth was observed in gas-permeable bags without feeder layers.
- Preferential recovery of normal hematopoietic progenitors over the CML clone in culture.
Conclusions:
- Culturing hematopoietic stem cells in gas-permeable bags offers a method for expansion without feeder layers.
- Combining pre-transplant chemotherapy to reduce the Philadelphia (Ph) clone with cultured bone marrow may improve CML treatment outcomes.
- Further research and international study results are crucial for refining this approach.