Assessment of chimerism by next generation sequencing : A comparison to STR/qPCR methods
Copyright © 2024 American Society for Histocompatibility and Immunogenetics. All rights reserved..
Chimerism analysis is used to evaluate patients after allogeneic hematopoietic stem cell transplant (allo-HSCT) for engraftment and minimal measurable residual disease (MRD) monitoring. A combination of short-tandem repeat (STR) and quantitative polymerase chain reaction (qPCR) was required to achieve both sensitivity and accuracy in the patients with various chimerism statuses. In this study, an insertion/deletion-based multiplex chimerism assay by next generation sequencing (NGS) was evaluated using 5 simulated unrelated donor-recipient combinations from 10 volunteers. Median number of informative markers detected was 8 (range = 5 - 11). The limit of quantitation (LoQ) was determined to be 0.1 % recipient. Assay sample number/batch was 10-20 and total assay time was 19-31 h (manual labor = 2.1 h). Additionally, 50 peripheral blood samples from 5 allo-HSCT recipients (related: N = 4; unrelated: N = 1) were tested by NGS and STR/qPCR. Median number of informative markers detected was 7 (range = 4 - 12). Results from both assays demonstrated a strong correlation (Y = 0.9875X + 0.333; R2 = 0.9852), no significant assay bias (difference mean - 0.08), and 100 % concordant detection of percent recipient increase ≥ 0.1 % (indicator of increased relapse risk). NGS-based chimerism assay can support all allo-HSCT for engraftment and MRD monitoring and simplify clinical laboratory workflow compared to STR/qPCR.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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Enthalten in: |
Human immunology - (2024) vom: 28. März, Seite 110794 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Brow, Darren [VerfasserIn] |
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Links: |
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Themen: |
Allogenic hematopoietic stem cell transplant |
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Anmerkungen: |
Date Revised 29.03.2024 published: Print-Electronic Citation Status Publisher |
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doi: |
10.1016/j.humimm.2024.110794 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM370429095 |
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520 | |a Chimerism analysis is used to evaluate patients after allogeneic hematopoietic stem cell transplant (allo-HSCT) for engraftment and minimal measurable residual disease (MRD) monitoring. A combination of short-tandem repeat (STR) and quantitative polymerase chain reaction (qPCR) was required to achieve both sensitivity and accuracy in the patients with various chimerism statuses. In this study, an insertion/deletion-based multiplex chimerism assay by next generation sequencing (NGS) was evaluated using 5 simulated unrelated donor-recipient combinations from 10 volunteers. Median number of informative markers detected was 8 (range = 5 - 11). The limit of quantitation (LoQ) was determined to be 0.1 % recipient. Assay sample number/batch was 10-20 and total assay time was 19-31 h (manual labor = 2.1 h). Additionally, 50 peripheral blood samples from 5 allo-HSCT recipients (related: N = 4; unrelated: N = 1) were tested by NGS and STR/qPCR. Median number of informative markers detected was 7 (range = 4 - 12). Results from both assays demonstrated a strong correlation (Y = 0.9875X + 0.333; R2 = 0.9852), no significant assay bias (difference mean - 0.08), and 100 % concordant detection of percent recipient increase ≥ 0.1 % (indicator of increased relapse risk). NGS-based chimerism assay can support all allo-HSCT for engraftment and MRD monitoring and simplify clinical laboratory workflow compared to STR/qPCR | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Allogenic hematopoietic stem cell transplant | |
650 | 4 | |a Chimerism testing | |
650 | 4 | |a Measurable residual disease | |
650 | 4 | |a Next generation sequencing | |
650 | 4 | |a Relapse | |
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700 | 1 | |a Mineishi, Shin |e verfasserin |4 aut | |
700 | 1 | |a Claxton, David F |e verfasserin |4 aut | |
700 | 1 | |a Wirk, Baldeep |e verfasserin |4 aut | |
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700 | 1 | |a Greiner, Robert J |e verfasserin |4 aut | |
700 | 1 | |a Viswanatha, David |e verfasserin |4 aut | |
700 | 1 | |a Kharfan-Dabaja, Mohamed A |e verfasserin |4 aut | |
700 | 1 | |a Li, Zhuo |e verfasserin |4 aut | |
700 | 1 | |a Tyler, Jennifer |e verfasserin |4 aut | |
700 | 1 | |a Elrefaei, Mohamed |e verfasserin |4 aut | |
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