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Development of a genomic DNA reference material panel for thalassemia genetic testing
Author(s) -
Yin Zhenzhen,
Qu Shoufang,
Huang Chuanfeng,
Chen Fang,
Li Jianbiao,
Chen Shiping,
Ye Jingyu,
Yang Ying,
Zheng Yu,
Zhang Xi,
Yang Xuexi,
Xie Longxu,
Wei Jitao,
Wei Fengxiang,
Guo Jian,
Huang Jie
Publication year - 2020
Publication title -
international journal of laboratory hematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.705
H-Index - 55
eISSN - 1751-553X
pISSN - 1751-5521
DOI - 10.1111/ijlh.13213
Subject(s) - genotyping , thalassemia , genetic testing , genotype , quality assurance , genetics , genomic dna , biology , microbiology and biotechnology , computational biology , medicine , external quality assessment , dna , gene , pathology
Thalassemia is one of the most common autosomal recessive inherited diseases worldwide, and it is also highly prevalent and variable in southern China. Various types of genetic testing technologies have been developed for diagnosis and screening of thalassemia. Characterized genomic DNA reference materials (RMs) are necessary for assay development, validation, proficiency testing, and quality assurance. However, there are no publicly available RMs for thalassemia genetic testing as yet. Methods To address the need for the publicly available DNA RMs for thalassemia genetic testing, the National Institutes for Food and Drug Control and the China National GeneBank established 32 new cell lines with three wild‐type genotypes and 29 distinct genotypes of thalassemia which account for approximately 90% thalassemia carriers in China. The genomic DNA of 32 cell lines was characterized by four clinical genetic testing laboratories using different genetic testing methods and technology platforms. Results The genotyping results are concordant among four laboratories. In addition, the results of stability test demonstrated that the genotypes of these DNA samples are not influenced by preanalytical conditions such as long‐term exposure to high‐temperature (37°C) environment and repeated freeze‐thawing. Conclusion We developed the first national panel of 32 genomic DNA RMs which are renewable and publicly available for the quality assurance of various genetic testing methods and will facilitate research and development in thalassemia genetic testing.