Back to Journals » Advances in Genomics and Genetics » Volume 4

Exome sequencing: what clinicians need to know

Authors Sastre L

Received 11 December 2013

Accepted for publication 23 January 2014

Published 31 March 2014 Volume 2014:4 Pages 15—27

DOI https://doi.org/10.2147/AGG.S39108

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3


Leandro Sastre

Instituto de Investigaciones Biomédicas, CSIC/UAM, C/Arturo Duperier 4, Madrid, Spain; Terapias Experimentales y Biomarcadores en Cáncer, IdiPaz, Madrid, Spain; CIBER de Enfermedades Raras, CIBERER, Valencia, Spain

Abstract: The recent development of high throughput methods of deoxyribonucleic acid (DNA) sequencing has made it possible to determine individual genome sequences and their specific variations. A region of particular interest is the protein-coding part of the genome, or exome, which is composed of gene exons. The principles of exome purification and sequencing will be described in this review, as well as analyses of the data generated. Results will be discussed in terms of their possible functional and clinical significance. The advantages and limitations of exome sequencing will be compared to those of other massive sequencing approaches such as whole-genome sequencing, ribonucleic acid sequencing or selected DNA sequencing. Exome sequencing has been used recently in the study of various diseases. Monogenic diseases with Mendelian inheritance are among these, but studies have also been carried out on genetic variations that represent risk factors for complex diseases. Cancer is another intensive area for exome sequencing studies. Several examples of the use of exome sequencing in the diagnosis, prognosis, and treatment of these diseases will be described. Finally, remaining challenges and some practical and ethical considerations for the clinical application of exome sequencing will be discussed.

Keywords: massively parallel sequencing, RNA sequencing, whole-genome sequencing, genetic variants, molecular diagnosis, pharmacogenomics, personalized medicine, NGS, SGS, SNP, SNV

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]