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Lineage-specific chimerism analysis in nucleated cells, T cells and natural killer cells after myeloablative allogeneic hematopoietic stem cell transplantation
Article in English | WPRIM (Western Pacific) | ID: wpr-720643
Responsible library: WPRO
ABSTRACT

BACKGROUND:

Chimerism analysis is an important tool for assessing the origin of hematopoietic cells after allogeneic stem cell transplantation (allo-SCT) and can be used to detect impending graft rejection and the recurrence of underlying malignant or nonmalignant diseases.

METHODS:

This study included 24 patients who underwent myeloablative allo-SCT. DNA was extracted from nucleated cells (NCs), T cells, and natural killer (NK) cells, and the chimerism status of these cell fractions was determined by STR-PCR performed using an automated fluorescent DNA analyzer.

RESULTS:

Twenty-three out of the 24 patients achieved engraftment. Mixed chimerism (MC) in NCs, but not in T cells and NK cells, was significantly correlated with disease relapse. MC in all cell fractions was correlated with mortality. Ten patients (41.6%) developed extensive chronic GVHD. Six patients had MC in T cells, and 3 of them had chronic GVHD. Four patients with MC and relapse received donor lymphocyte infusion (DLI), and among them, 3 had secondary relapse. Further, the chimerism status differed among different cell lineages in 6 patients with myeloid malignancies.

CONCLUSION:

The implications of MC in lymphocyte subsets are an important area for future research. Chimerism analysis in lineage-specific cells permits detection of relapse and facilitates the monitoring of therapeutic interventions. These results can provide the basic data for chimerism analysis after myeloablative SCT.
Subject(s)

Full text: Available Database: WPRIM (Western Pacific) Main subject: Recurrence / Tissue Donors / DNA / Hematopoietic Stem Cells / Killer Cells, Natural / Lymphocytes / T-Lymphocytes / Lymphocyte Subsets / Hematopoietic Stem Cell Transplantation / Cell Lineage Limits: Humans Language: English Journal: Korean Journal of Hematology Year: 2011 Document type: Article
Full text: Available Database: WPRIM (Western Pacific) Main subject: Recurrence / Tissue Donors / DNA / Hematopoietic Stem Cells / Killer Cells, Natural / Lymphocytes / T-Lymphocytes / Lymphocyte Subsets / Hematopoietic Stem Cell Transplantation / Cell Lineage Limits: Humans Language: English Journal: Korean Journal of Hematology Year: 2011 Document type: Article
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