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REVIEW
Year : 2018  |  Volume : 1  |  Issue : 5  |  Page : 149-154

How does one do next-generation sequencing for brain tumors in the clinical laboratories?


Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong; Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China

Correspondence Address:
Dr. Ho-Keung Ng
Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
China
Dr. Kay Ka-Wai Li
Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/glioma.glioma_36_18

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The newly released World Health Organization Classification of Tumors of the Central Nervous System 2016 has implemented molecular information in the classification of brain tumors. A number of large-scale retrospective studies have indicated that molecular data are of diagnostic and prognostic relevance in neuro-oncology. Incorporation of molecular studies has become a prerequisite in standard-of-care practice of neuro-oncology. Next-generation sequencing (NGS) or massively parallel sequencing allows simultaneously sequencing millions of DNA fragments in an acceptable period. The technique allows examination of a number of genes and gene regions simultaneously and is capable of detecting a wide variety of molecular alterations. NGS has been rapidly adopted in cancer studies to identify mutational landscape, copy number variation, novel fusion genes, and others. With its rapidly declining cost, NGS is slowly replacing conventional molecular techniques in cancer diagnosis. In this review, we will review the development of NGS and common sequencing strategies in oncology laboratories. We will then discuss the application of NGS in detecting genetic aberrations in neuro-oncology.


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