Monitoring of Donor/recipient T-cell Engraftment Kinetics in Myeloablative Allogeneic Stem Cell Transplantation Using Short Tandem Repeat Amplification from Cell Lysates
2002
Molecular monitoring of donor/recipient T-cell kinetics early post-transplant can provide clues to the immunological events that govern host-versus-graft reaction (HVGR) and graft versus-host-disease (GVHD). We have previously used fluorescence in situ hybridization (FISH) with X and Y probes to monitor recipient T (R-T) cell clearance early after myeloablative allogeneic stem cell transplantation (ASCT). We demonstrated that impaired clearance of residual host-T-cells in the early days post-transplant was associated with graft rejection, while enhanced clearance could be an indicator of increased donor anti-host alloreactivity and predictive of acute GVHD. Although FISH is the most accurate quantitative molecular tool for the determination of the exact donor/recipient-T-cell numbers at any time points post-transplant, it has the disadvantage of being limited to sex mismatched donor/recipient pairs. Our goal was to develop a molecular approach that, irrespective of gender, would be comparable to FISH in a...
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