Quantitative evaluation of chimerism status following haematopoeitic stem cell transplantation using a microchip electrophoresis system

Daud, S.S. and Ibrahim, K. and Ariffin, Hany (2007) Quantitative evaluation of chimerism status following haematopoeitic stem cell transplantation using a microchip electrophoresis system. Journal of the University of Malaya Medical Centre (JUMMEC), 10 (1). pp. 11-16. ISSN 1823-7339,

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Official URL: https://jummec.um.edu.my/article/view/4552

Abstract

We aimed to establish a method for quantitative analysis of mixed haematopoietic chimerism based on microchip electrophoresis of selected molecular markers following PCR amplification for accurate monitoring of graft status post-transplantation. A 12-year-old girl with relapsed acute lymphoblastic leukaemia who underwent allogeneic bone marrow transplantation had qualitative chimerism analysis using short tandem repeat markers at three time points following the procedure. Her archived DNA samples were then used to test the ability to correlate her clinical course with changes in the quantity of donor chimerism at the different time points. Quantitative chimerism analysis was performed on the Agilent 2100 bioanalyser and donor-recipient ratios were calculated from generated electropherograms. Complete donor chimerism (98%) was demonstrated three weeks post- transplantation. Decreasing amount of donor chimerism to 24% was shown after three months and this concurred with clinical relapse. Following a second transplant, full donor chimerism was reestablished where donor chimerism rose to 100%. High resolution microchip electrophoresis could be useful in predicting the occurrence of increasing recipient chimerism which may herald impending relapse in patients while the disease burden is still low. This investigational approach may provide useful information for clinicians to select appropriate intervention strategies to ensure successful transplantation.

Item Type: Article
Funders: UNSPECIFIED
Additional Information: DH
Uncontrolled Keywords: Haemopoeitic stem cell transplantation (HSCT); Chimerism analysis; Short tandem repeats (STR)
Subjects: R Medicine
Divisions: Faculty of Medicine
Depositing User: Mr Jasny Razali
Date Deposited: 02 Jun 2020 04:29
Last Modified: 02 Jun 2020 04:29
URI: http://eprints.um.edu.my/id/eprint/24450

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