TY - JOUR
T1 - Trio-based whole exome sequencing in patients with suspected sporadic inborn errors of immunity
T2 - a retrospective cohort study
AU - Hebert, Anne
AU - Simons, Annet
AU - Schuurs-Hoeijmakers, Janneke H M
AU - Koenen, Hans J P M
AU - Zonneveld-Huijssoon, Evelien
AU - Henriet, Stefanie S V
AU - Schatorjé, Ellen J H
AU - Hoppenreijs, Esther P A H
AU - Leenders, Erika K S M
AU - Janssen, Etienne J M
AU - Santen, Gijs W E
AU - de Munnik, Sonja A
AU - van Reijmersdal, Simon V
AU - van Rijssen, Esther
AU - Kersten, Simone
AU - Netea, Mihai G
AU - Smeets, Ruben L
AU - van de Veerdonk, Frank L
AU - Hoischen, Alexander
AU - van der Made, Caspar I
N1 - © 2022, Hebert et al.
PY - 2022
Y1 - 2022
N2 - Background: De novo variants (DNVs) are currently not routinely evaluated as part of diagnostic whole exome sequencing (WES) analysis in patients with suspected inborn errors of immunity (IEI).Methods: This study explored the potential added value of systematic assessment of DNVs in a retrospective cohort of 123 patients with a suspected sporadic IEI that underwent patient-parent trio-based WES.Results: A (likely) molecular diagnosis for (part) of the immunological phenotype was achieved in 12 patients with the diagnostic in silico IEI WES gene panel. Systematic evaluation of rare, non-synonymous DNVs in coding or splice site regions led to the identification of 14 candidate DNVs in genes with an annotated immune function. DNVs were found in IEI genes (NLRP3 and RELA) and in potentially novel candidate genes, including PSMB10, DDX1, KMT2C and FBXW11. The FBXW11 canonical splice site DNV was shown to lead to defective RNA splicing, increased NF-κB p65 signalling, and elevated IL-1β production in primary immune cells extracted from the patient with autoinflammatory disease.<.Conclusions: Our findings in this retrospective cohort study advocate the implementation of trio-based sequencing in routine diagnostics of patients with sporadic IEI. Furthermore, we provide functional evidence supporting a causal role for FBXW11 loss-of-function mutations in autoinflammatory disease.Funding: This research was supported by grants from the European Union, ZonMW and the Radboud Institute for Molecular Life Sciences.
AB - Background: De novo variants (DNVs) are currently not routinely evaluated as part of diagnostic whole exome sequencing (WES) analysis in patients with suspected inborn errors of immunity (IEI).Methods: This study explored the potential added value of systematic assessment of DNVs in a retrospective cohort of 123 patients with a suspected sporadic IEI that underwent patient-parent trio-based WES.Results: A (likely) molecular diagnosis for (part) of the immunological phenotype was achieved in 12 patients with the diagnostic in silico IEI WES gene panel. Systematic evaluation of rare, non-synonymous DNVs in coding or splice site regions led to the identification of 14 candidate DNVs in genes with an annotated immune function. DNVs were found in IEI genes (NLRP3 and RELA) and in potentially novel candidate genes, including PSMB10, DDX1, KMT2C and FBXW11. The FBXW11 canonical splice site DNV was shown to lead to defective RNA splicing, increased NF-κB p65 signalling, and elevated IL-1β production in primary immune cells extracted from the patient with autoinflammatory disease.<.Conclusions: Our findings in this retrospective cohort study advocate the implementation of trio-based sequencing in routine diagnostics of patients with sporadic IEI. Furthermore, we provide functional evidence supporting a causal role for FBXW11 loss-of-function mutations in autoinflammatory disease.Funding: This research was supported by grants from the European Union, ZonMW and the Radboud Institute for Molecular Life Sciences.
U2 - 10.7554/eLife.78469
DO - 10.7554/eLife.78469
M3 - Article
C2 - 36250618
SN - 2050-084X
VL - 11
JO - Elife
JF - Elife
M1 - e78469
ER -