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- Title
The impact of post-thaw colony-forming units-granulocyte/macrophage on engraftment following unrelated cord blood transplantation in pediatric recipients.
- Authors
Yoo, K. H.; Lee, S. H.; Kim, H.-J.; Sung, K. W.; Jung, H. L.; Cho, E. J.; Park, H. K.; Kim, H. A.; Koo, H. H.
- Abstract
We retrospectively reviewed the engraftment kinetics following unrelated cord blood transplantation (CBT) in association with the post-thaw colony-forming units-granulocyte/macrophage (CFU-GM) number along with the numbers of total nucleated cells (TNC), CD34+ cells and CD3+ cells. A total of 71 cord blood units prepared for 53 patients (double-unit CBT in 18 patients) were evaluated. Either the number of infused CFU-GM or CD34+ cells was significantly lower in patients who failed to achieve engraftment (P=0.028 and 0.005, respectively). Post-thaw CFU-GM, TNC and CD34+ cells correlated with the speed of neutrophil engraftment (P=0.004, 0.037 and 0.004, respectively), whereas only CFU-GM showed a significant correlation with platelet engraftment (r=−0.385, P=0.024). In double-unit transplants, the number of CFU-GM was the only significant factor predicting engraftment of the predominating unit (P=0.006). We conclude that the post-thaw CFU-GM number is a reliable predictor of rapid engraftment after CBT as well as of the predominating unit in double-unit transplants. Thus, it would be important to perform post-thaw CFU-GM assay on cryopreserved aliquots from several candidate cord blood units in advance before CBT to avoid selecting the unit that might possess a low clonogenic potential.Bone Marrow Transplantation (2007) 39, 515–521. doi:10.1038/sj.bmt.1705629; published online 5 March 2007
- Subjects
GRANULOCYTE antigens; GRANULOCYTES; MACROPHAGE activation; TISSUE-specific antigens; PATIENTS
- Publication
Bone Marrow Transplantation, 2007, Vol 39, Issue 9, p515
- ISSN
0268-3369
- Publication type
Article
- DOI
10.1038/sj.bmt.1705629