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Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome

Strømme syndrome is an ultra-rare primary ciliopathy with clinical variability. The syndrome is caused by bi-allelic variants in CENPF, a protein with key roles in both chromosomal segregation and ciliogenesis. We report three unrelated patients with Strømme syndrome and, using high-throughput seque...

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Autores principales: Misceo, Doriana, Senaratne, Lokuliyanage Dona Samudita, Mero, Inger-Lise, Sundaram, Arvind Y. M., Bjørnstad, Pål Marius, Szczałuba, Krzysztof, Gasperowicz, Piotr, Kamien, Benjamin, Nedregaard, Bård, Holmgren, Asbjørn, Strømme, Petter, Frengen, Eirik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10671177/
https://www.ncbi.nlm.nih.gov/pubmed/38002928
http://dx.doi.org/10.3390/genes14111985
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author Misceo, Doriana
Senaratne, Lokuliyanage Dona Samudita
Mero, Inger-Lise
Sundaram, Arvind Y. M.
Bjørnstad, Pål Marius
Szczałuba, Krzysztof
Gasperowicz, Piotr
Kamien, Benjamin
Nedregaard, Bård
Holmgren, Asbjørn
Strømme, Petter
Frengen, Eirik
author_facet Misceo, Doriana
Senaratne, Lokuliyanage Dona Samudita
Mero, Inger-Lise
Sundaram, Arvind Y. M.
Bjørnstad, Pål Marius
Szczałuba, Krzysztof
Gasperowicz, Piotr
Kamien, Benjamin
Nedregaard, Bård
Holmgren, Asbjørn
Strømme, Petter
Frengen, Eirik
author_sort Misceo, Doriana
collection PubMed
description Strømme syndrome is an ultra-rare primary ciliopathy with clinical variability. The syndrome is caused by bi-allelic variants in CENPF, a protein with key roles in both chromosomal segregation and ciliogenesis. We report three unrelated patients with Strømme syndrome and, using high-throughput sequencing approaches, we identified novel pathogenic variants in CENPF, including one structural variant, giving a genetic diagnosis to the patients. Patient 1 was a premature baby who died at 26 days with congenital malformations affecting many organs including the brain, eyes, and intestine. She was homozygous for a donor splice variant in CENPF, NM_016343.3:c.1068+1G>A, causing skipping of exon 7, resulting in a frameshift. Patient 2 was a female with intestinal atresia, microcephaly, and a Peters anomaly. She had normal developmental milestones at the age of 7 years. She is compound heterozygous for CENPF NM_016343.3:c.5920dup and c.8991del, both frameshift. Patient 3 was a male with anomalies of the brain, eye, intestine, and kidneys. He was compound heterozygous for CENPF p.(Glu298Ter), and a 5323 bp deletion covering exon 1. CENPF exon 1 is flanked by repetitive sequences that may represent a site of a recurrent structural variation, which should be a focus in patients with Strømme syndrome of unknown etiology.
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spelling pubmed-106711772023-10-24 Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome Misceo, Doriana Senaratne, Lokuliyanage Dona Samudita Mero, Inger-Lise Sundaram, Arvind Y. M. Bjørnstad, Pål Marius Szczałuba, Krzysztof Gasperowicz, Piotr Kamien, Benjamin Nedregaard, Bård Holmgren, Asbjørn Strømme, Petter Frengen, Eirik Genes (Basel) Article Strømme syndrome is an ultra-rare primary ciliopathy with clinical variability. The syndrome is caused by bi-allelic variants in CENPF, a protein with key roles in both chromosomal segregation and ciliogenesis. We report three unrelated patients with Strømme syndrome and, using high-throughput sequencing approaches, we identified novel pathogenic variants in CENPF, including one structural variant, giving a genetic diagnosis to the patients. Patient 1 was a premature baby who died at 26 days with congenital malformations affecting many organs including the brain, eyes, and intestine. She was homozygous for a donor splice variant in CENPF, NM_016343.3:c.1068+1G>A, causing skipping of exon 7, resulting in a frameshift. Patient 2 was a female with intestinal atresia, microcephaly, and a Peters anomaly. She had normal developmental milestones at the age of 7 years. She is compound heterozygous for CENPF NM_016343.3:c.5920dup and c.8991del, both frameshift. Patient 3 was a male with anomalies of the brain, eye, intestine, and kidneys. He was compound heterozygous for CENPF p.(Glu298Ter), and a 5323 bp deletion covering exon 1. CENPF exon 1 is flanked by repetitive sequences that may represent a site of a recurrent structural variation, which should be a focus in patients with Strømme syndrome of unknown etiology. MDPI 2023-10-24 /pmc/articles/PMC10671177/ /pubmed/38002928 http://dx.doi.org/10.3390/genes14111985 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Misceo, Doriana
Senaratne, Lokuliyanage Dona Samudita
Mero, Inger-Lise
Sundaram, Arvind Y. M.
Bjørnstad, Pål Marius
Szczałuba, Krzysztof
Gasperowicz, Piotr
Kamien, Benjamin
Nedregaard, Bård
Holmgren, Asbjørn
Strømme, Petter
Frengen, Eirik
Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title_full Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title_fullStr Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title_full_unstemmed Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title_short Novel Loss of Function Variants in CENPF Including a Large Intragenic Deletion in Patients with Strømme Syndrome
title_sort novel loss of function variants in cenpf including a large intragenic deletion in patients with strømme syndrome
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10671177/
https://www.ncbi.nlm.nih.gov/pubmed/38002928
http://dx.doi.org/10.3390/genes14111985
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