Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies

Challenges in diagnosing primary immunodeficiency are numerous and diverse, with current whole-exome and whole-genome sequencing approaches only able to reach a molecular diagnosis in 25–60% of cases. We assess these problems and discuss how RNA-focused analysis has expanded and improved in recent y...

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Main Authors: Jed J. Lye, Anthony Williams, Diana Baralle
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-12-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fgene.2019.01204/full
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author Jed J. Lye
Anthony Williams
Anthony Williams
Diana Baralle
Diana Baralle
author_facet Jed J. Lye
Anthony Williams
Anthony Williams
Diana Baralle
Diana Baralle
author_sort Jed J. Lye
collection DOAJ
description Challenges in diagnosing primary immunodeficiency are numerous and diverse, with current whole-exome and whole-genome sequencing approaches only able to reach a molecular diagnosis in 25–60% of cases. We assess these problems and discuss how RNA-focused analysis has expanded and improved in recent years and may now be utilized to gain an unparalleled insight into cellular immunology. We review how investigation into RNA biology can give information regarding the differential expression, monoallelic expression, and alternative splicing—which have important roles in immune regulation and function. We show how this information can inform bioinformatic analysis pipelines and aid in the variant filtering process, expediting the identification of causal variants—especially those affecting splicing—and enhance overall diagnostic ability. We also demonstrate the challenges, which remain in the design of this type of investigation, regarding technological limitation and biological considerations and suggest potential directions for the clinical applications.
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spelling doaj.art-085a2e7e20d944c5997f50030f7e736f2022-12-21T20:29:10ZengFrontiers Media S.A.Frontiers in Genetics1664-80212019-12-011010.3389/fgene.2019.01204495353Exploring the RNA Gap for Improving Diagnostic Yield in Primary ImmunodeficienciesJed J. Lye0Anthony Williams1Anthony Williams2Diana Baralle3Diana Baralle4University of Southampton Medical School, University of Southampton, Southampton, United KingdomUniversity of Southampton Medical School, University of Southampton, Southampton, United KingdomWessex Investigational Sciences Hub Laboratory (WISH Lab), Faculty of Medicine, University of Southampton, Southampton, United KingdomUniversity of Southampton Medical School, University of Southampton, Southampton, United KingdomFaculty of Medicine, Highfield Campus, University of Southampton, Southampton, United KingdomChallenges in diagnosing primary immunodeficiency are numerous and diverse, with current whole-exome and whole-genome sequencing approaches only able to reach a molecular diagnosis in 25–60% of cases. We assess these problems and discuss how RNA-focused analysis has expanded and improved in recent years and may now be utilized to gain an unparalleled insight into cellular immunology. We review how investigation into RNA biology can give information regarding the differential expression, monoallelic expression, and alternative splicing—which have important roles in immune regulation and function. We show how this information can inform bioinformatic analysis pipelines and aid in the variant filtering process, expediting the identification of causal variants—especially those affecting splicing—and enhance overall diagnostic ability. We also demonstrate the challenges, which remain in the design of this type of investigation, regarding technological limitation and biological considerations and suggest potential directions for the clinical applications.https://www.frontiersin.org/article/10.3389/fgene.2019.01204/fullprimary immunodeficiency disordersclinical diagnosticsRNASeqRNARNAseq analysis
spellingShingle Jed J. Lye
Anthony Williams
Anthony Williams
Diana Baralle
Diana Baralle
Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
Frontiers in Genetics
primary immunodeficiency disorders
clinical diagnostics
RNASeq
RNA
RNAseq analysis
title Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
title_full Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
title_fullStr Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
title_full_unstemmed Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
title_short Exploring the RNA Gap for Improving Diagnostic Yield in Primary Immunodeficiencies
title_sort exploring the rna gap for improving diagnostic yield in primary immunodeficiencies
topic primary immunodeficiency disorders
clinical diagnostics
RNASeq
RNA
RNAseq analysis
url https://www.frontiersin.org/article/10.3389/fgene.2019.01204/full
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