Standardization of BCR-ABL1 quantification on the international scale in China using locally developed secondary reference panels.
Exp Hematol
; 81: 42-49.e3, 2020 01.
Article
em En
| MEDLINE
| ID: mdl-31863797
ABSTRACT
For patients with chronic myeloid leukemia, reverse transcription quantitative polymerase chain reaction is widely used in laboratories to quantify BCR-ABL1 fusion gene transcripts for disease management. Many efforts have been made to standardize the BCR-ABL1 testing assay, including the primary and secondary reference reagents, but the secondary standards have not been developed and used in the standardization program in China. With the use of armored RNA technology, armored RNA of BCR-ABL1 and control genes was manufactured to prepare the secondary reference material anchored to the World Health Organization primary reference calibrators for standardization of BCR-ABL1 testing assays. The secondary reference was sent to 30 laboratories in China for validation. Data from an external quality assessment after the standardization process were collected and analyzed as well. The assigned %BCR-ABL1/ABL1IS values of the four levels of the secondary material panels were 0.0118, 0.1345, 1.3808, and 19.4266, respectively. In validation trials, 70.0% (21/30) of laboratories obtained valid conversion factors for the BCR-ABL1 assay. All valid conversion factors from 11 international scale laboratories were equivalent to their respective previous values. External quality assessment data indicated that the accuracy and precision between laboratories were improved. Moreover, the quantity of the panels is abundant to be used as quality control samples for monitoring the shift of data. In this study, we established a secondary genetic reference panel for BCR-ABL1 quantification. This study will play a role in facilitating the worldwide dissemination of the international scale, especially in promoting the standardization of molecular monitoring in China.
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Regulação Leucêmica da Expressão Gênica
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Proteínas de Fusão bcr-abl
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Reação em Cadeia da Polimerase Via Transcriptase Reversa
Tipo de estudo:
Clinical_trials
/
Evaluation_studies
Limite:
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
Exp Hematol
Ano de publicação:
2020
Tipo de documento:
Article