Origin of Bone Marrow Stromal Cells After Transplantation
Author Information
Author(s): N.A. Athanasou, J. Quinn, M.K. Brenner, H. Grant Prentice, A. Graham, S. Taylor, D. Flannery, J. O'D. McGee
Primary Institution: Nuffield Department of Pathology, University of Oxford
Hypothesis
Is there a common stem cell for both haemopoietic and stromal cells in bone marrow?
Conclusion
Stromal cells in bone marrow transplants are of host origin, indicating distinct lineages for haemopoietic and stromal cells.
Supporting Evidence
- Stromal cells were identified as being of host origin in all examined cases.
- Mixed chimaerism was observed in haemopoietic cells, indicating donor and host contributions.
- The study used a novel technique to examine intact bone marrow without cell dissociation.
Takeaway
When people get bone marrow transplants, the new cells that help make blood come from the donor, but the support cells in the bone marrow come from the person who received the transplant.
Methodology
In situ hybridisation was used to detect the Y chromosome in bone marrow sections from patients who received transplants from donors of the opposite sex.
Limitations
The study had a small sample size and may not represent all cases of bone marrow transplantation.
Participant Demographics
Seven patients (four female, three male) aged 10-43, treated for acute leukaemia.
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