A 2020 update on the use of genetic testing for patients with primary immunodeficiency.

Abstract:

INTRODUCTION:Genetic testing of patients with clinically diagnosed or suspected primary immunodeficiencies (PIDs) constitutes standard of care. Choice of testing modality and patient attributes can impact the likelihood of securing a diagnosis. AREAS COVERED:Published diagnostic rates for gene panel testing, exome sequencing (WES), and whole genome sequencing are compared among cohorts identified within PubMed. Performance of the testing platforms is reviewed in PIDs taken as a whole, followed by separate cohorts of patients with suspected PIDs, specific PIDs, and clinical phenotypes that can be associated with underlying PIDs. EXPERT OPINION:Massively parallel high-throughput sequencing clearly represents the most expedient method for diagnosis of PIDs. For patients from highly consanguineous backgrounds, WES and whole genome sequencing should be performed to obtain optimal diagnostic yield. For patients for whom familial consanguinity is unlikely, choice of platform depends upon the phenotype. In patients with suspected PIDs, assessment for copy number variants is important, whether as part of gene panel bioinformatic analyses or combined with WES. Diagnostic rates overall for massively parallel sequencing are high for clinically diagnosed and suspected PIDs. WES may have a slightly higher overall yield, but gene panel testing represents a cost-effective and efficient reasonable initial step.

authors

Chinn IK,Orange JS

doi

10.1080/1744666X.2020.1814145

subject

Has Abstract

pub_date

2020-09-01 00:00:00

pages

897-909

issue

9

eissn

1744-666X

issn

1744-8409

journal_volume

16

pub_type

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