1. Clinical Utility of Chimerism Status Assessed by Lineage-Specific Short Tandem Repeat Analysis: Experience from Four Cases of Allogeneic Stem Cell Transplantation
- Author
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Hyo-Jin Kim, Kyeong Heo, Sung-Suk Cho, Sung-Yong Oh, Ri-Young Goh, Sung-Hyun Kim, Jin-Yeong Han, Yoo-Jeong Song, and Hyeok-Chan Kwon
- Subjects
Adult ,Male ,Myeloid ,T-Lymphocytes ,Clinical Biochemistry ,Graft vs Host Disease ,Disease ,Biology ,Chimerism ,Polymerase Chain Reaction ,Lineage specific ,Predictive Value of Tests ,medicine ,Humans ,Transplantation, Homologous ,Mixed chimerism ,Graft rejection ,Biochemistry (medical) ,General Medicine ,Middle Aged ,Killer Cells, Natural ,Transplantation ,surgical procedures, operative ,medicine.anatomical_structure ,Immunology ,Microsatellite ,Stem cell ,Microsatellite Repeats ,Stem Cell Transplantation - Abstract
Chimerism testing permits early prediction and documentation of successful engraftment, and also facilitates detection of impending graft rejection. In this study, we serially monitored chimerism status by short tandem repeat-based PCR in nucleated cells (NC), T cells and natural killer (NK) cells after myeloablative allogeneic stem cell transplantation (SCT). Four patients with myeloid malignancies showed discrepant chimerism results among those three fractions. Three patients had mixed chimerism (MC) of donor/host T cells at a time point around the onset of chronic graft-versus-host disease (GVHD). In two patients with disease relapse, MC of NK cells preceded a morphological relapse or NK cells showed a higher percentage of patient cells compared to NC. Therefore, our study shows that chimerism analysis in lineage-specific cells might be useful in predicting clinical outcome after allogeneic SCT in certain patients.
- Published
- 2009