A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome

<p dir="ltr">In a patient diagnosed with both Kallmann syndrome (KS) and intellectual disability (ID), who carried an apparently balanced translocation t(7;12)(q22;q24)<i>dn</i>, array comparative genomic hybridization (aCGH) disclosed a cryptic heterozygous 4.7 Mb deleti...

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Main Author: Afif Ben-Mahmoud (13913550) (author)
Other Authors: Shotaro Kishikawa (19483132) (author), Vijay Gupta (209146) (author), Natalia T. Leach (19483135) (author), Yiping Shen (102565) (author), Oana Moldovan (808331) (author), Himanshu Goel (509740) (author), Bruce Hopper (19483138) (author), Kara Ranguin (19483141) (author), Nicolas Gruchy (14829754) (author), Saskia M Maas (19483144) (author), Yves Lacassie (6034238) (author), Soo-Hyun Kim (10655) (author), Woo-Yang Kim (206701) (author), Bradley J. Quade (19483147) (author), Cynthia C. Morton (10860072) (author), Cheol-Hee Kim (36752) (author), Lawrence C. Layman (13913559) (author), Hyung-Goo Kim (728597) (author)
Published: 2023
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author Afif Ben-Mahmoud (13913550)
author2 Shotaro Kishikawa (19483132)
Vijay Gupta (209146)
Natalia T. Leach (19483135)
Yiping Shen (102565)
Oana Moldovan (808331)
Himanshu Goel (509740)
Bruce Hopper (19483138)
Kara Ranguin (19483141)
Nicolas Gruchy (14829754)
Saskia M Maas (19483144)
Yves Lacassie (6034238)
Soo-Hyun Kim (10655)
Woo-Yang Kim (206701)
Bradley J. Quade (19483147)
Cynthia C. Morton (10860072)
Cheol-Hee Kim (36752)
Lawrence C. Layman (13913559)
Hyung-Goo Kim (728597)
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author_facet Afif Ben-Mahmoud (13913550)
Shotaro Kishikawa (19483132)
Vijay Gupta (209146)
Natalia T. Leach (19483135)
Yiping Shen (102565)
Oana Moldovan (808331)
Himanshu Goel (509740)
Bruce Hopper (19483138)
Kara Ranguin (19483141)
Nicolas Gruchy (14829754)
Saskia M Maas (19483144)
Yves Lacassie (6034238)
Soo-Hyun Kim (10655)
Woo-Yang Kim (206701)
Bradley J. Quade (19483147)
Cynthia C. Morton (10860072)
Cheol-Hee Kim (36752)
Lawrence C. Layman (13913559)
Hyung-Goo Kim (728597)
author_role author
dc.creator.none.fl_str_mv Afif Ben-Mahmoud (13913550)
Shotaro Kishikawa (19483132)
Vijay Gupta (209146)
Natalia T. Leach (19483135)
Yiping Shen (102565)
Oana Moldovan (808331)
Himanshu Goel (509740)
Bruce Hopper (19483138)
Kara Ranguin (19483141)
Nicolas Gruchy (14829754)
Saskia M Maas (19483144)
Yves Lacassie (6034238)
Soo-Hyun Kim (10655)
Woo-Yang Kim (206701)
Bradley J. Quade (19483147)
Cynthia C. Morton (10860072)
Cheol-Hee Kim (36752)
Lawrence C. Layman (13913559)
Hyung-Goo Kim (728597)
dc.date.none.fl_str_mv 2023-08-10T09:00:00Z
dc.identifier.none.fl_str_mv 10.1038/s41598-023-40037-4
dc.relation.none.fl_str_mv https://figshare.com/articles/journal_contribution/A_cryptic_microdeletion_del_12_p11_21p11_23_within_an_unbalanced_translocation_t_7_12_q21_13_q23_1_implicates_new_candidate_loci_for_intellectual_disability_and_Kallmann_syndrome/26830957
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Biological sciences
Genetics
Biomedical and clinical sciences
Clinical sciences
Kallmann Syndrome (KS)
Intellectual Disability (ID)
Chromosomal Deletion
Candidate Genes
Phenotypic-Genotypic Comparison
Gene Expression
TSPAN11
dc.title.none.fl_str_mv A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
dc.type.none.fl_str_mv Text
Journal contribution
info:eu-repo/semantics/publishedVersion
text
contribution to journal
description <p dir="ltr">In a patient diagnosed with both Kallmann syndrome (KS) and intellectual disability (ID), who carried an apparently balanced translocation t(7;12)(q22;q24)<i>dn</i>, array comparative genomic hybridization (aCGH) disclosed a cryptic heterozygous 4.7 Mb deletion del(12)(p11.21p11.23), unrelated to the translocation breakpoint. This novel discovery prompted us to consider the possibility that the combination of KS and neurological disorder in this patient could be attributed to gene(s) within this specific deletion at 12p11.21-12p11.23, rather than disrupted or dysregulated genes at the translocation breakpoints. To further support this hypothesis, we expanded our study by screening five candidate genes at both breakpoints of the chromosomal translocation in a cohort of 48 KS patients. However, no mutations were found, thus reinforcing our supposition. In order to delve deeper into the characterization of the 12p11.21-12p11.23 region, we enlisted six additional patients with small copy number variations (CNVs) and analyzed eight individuals carrying small CNVs in this region from the DECIPHER database. Our investigation utilized a combination of complementary approaches. Firstly, we conducted a comprehensive phenotypic-genotypic comparison of reported CNV cases. Additionally, we reviewed knockout animal models that exhibit phenotypic similarities to human conditions. Moreover, we analyzed reported variants in candidate genes and explored their association with corresponding phenotypes. Lastly, we examined the interacting genes associated with these phenotypes to gain further insights. As a result, we identified a dozen candidate genes: <i>TSPAN11</i> as a potential KS candidate gene, <i>TM7SF3, STK38L, ARNTL2, ERGIC2, TMTC1, DENND5B</i>, and <i>ETFBKMT</i> as candidate genes for the neurodevelopmental disorder, and <i>INTS13, REP15, PPFIBP1</i>, and <i>FAR2</i> as candidate genes for KS with ID. Notably, the high-level expression pattern of these genes in relevant human tissues further supported their candidacy. Based on our findings, we propose that dosage alterations of these candidate genes may contribute to sexual and/or cognitive impairments observed in patients with KS and/or ID. However, the confirmation of their causal roles necessitates further identification of point mutations in these candidate genes through next-generation sequencing.</p><h2>Other Information</h2><p dir="ltr">Published in: Scientific Reports<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1038/s41598-023-40037-4" target="_blank">https://dx.doi.org/10.1038/s41598-023-40037-4</a></p>
eu_rights_str_mv openAccess
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identifier_str_mv 10.1038/s41598-023-40037-4
network_acronym_str Manara2
network_name_str Manara2
oai_identifier_str oai:figshare.com:article/26830957
publishDate 2023
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rights_invalid_str_mv CC BY 4.0
spelling A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndromeAfif Ben-Mahmoud (13913550)Shotaro Kishikawa (19483132)Vijay Gupta (209146)Natalia T. Leach (19483135)Yiping Shen (102565)Oana Moldovan (808331)Himanshu Goel (509740)Bruce Hopper (19483138)Kara Ranguin (19483141)Nicolas Gruchy (14829754)Saskia M Maas (19483144)Yves Lacassie (6034238)Soo-Hyun Kim (10655)Woo-Yang Kim (206701)Bradley J. Quade (19483147)Cynthia C. Morton (10860072)Cheol-Hee Kim (36752)Lawrence C. Layman (13913559)Hyung-Goo Kim (728597)Biological sciencesGeneticsBiomedical and clinical sciencesClinical sciencesKallmann Syndrome (KS)Intellectual Disability (ID)Chromosomal DeletionCandidate GenesPhenotypic-Genotypic ComparisonGene ExpressionTSPAN11<p dir="ltr">In a patient diagnosed with both Kallmann syndrome (KS) and intellectual disability (ID), who carried an apparently balanced translocation t(7;12)(q22;q24)<i>dn</i>, array comparative genomic hybridization (aCGH) disclosed a cryptic heterozygous 4.7 Mb deletion del(12)(p11.21p11.23), unrelated to the translocation breakpoint. This novel discovery prompted us to consider the possibility that the combination of KS and neurological disorder in this patient could be attributed to gene(s) within this specific deletion at 12p11.21-12p11.23, rather than disrupted or dysregulated genes at the translocation breakpoints. To further support this hypothesis, we expanded our study by screening five candidate genes at both breakpoints of the chromosomal translocation in a cohort of 48 KS patients. However, no mutations were found, thus reinforcing our supposition. In order to delve deeper into the characterization of the 12p11.21-12p11.23 region, we enlisted six additional patients with small copy number variations (CNVs) and analyzed eight individuals carrying small CNVs in this region from the DECIPHER database. Our investigation utilized a combination of complementary approaches. Firstly, we conducted a comprehensive phenotypic-genotypic comparison of reported CNV cases. Additionally, we reviewed knockout animal models that exhibit phenotypic similarities to human conditions. Moreover, we analyzed reported variants in candidate genes and explored their association with corresponding phenotypes. Lastly, we examined the interacting genes associated with these phenotypes to gain further insights. As a result, we identified a dozen candidate genes: <i>TSPAN11</i> as a potential KS candidate gene, <i>TM7SF3, STK38L, ARNTL2, ERGIC2, TMTC1, DENND5B</i>, and <i>ETFBKMT</i> as candidate genes for the neurodevelopmental disorder, and <i>INTS13, REP15, PPFIBP1</i>, and <i>FAR2</i> as candidate genes for KS with ID. Notably, the high-level expression pattern of these genes in relevant human tissues further supported their candidacy. Based on our findings, we propose that dosage alterations of these candidate genes may contribute to sexual and/or cognitive impairments observed in patients with KS and/or ID. However, the confirmation of their causal roles necessitates further identification of point mutations in these candidate genes through next-generation sequencing.</p><h2>Other Information</h2><p dir="ltr">Published in: Scientific Reports<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1038/s41598-023-40037-4" target="_blank">https://dx.doi.org/10.1038/s41598-023-40037-4</a></p>2023-08-10T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1038/s41598-023-40037-4https://figshare.com/articles/journal_contribution/A_cryptic_microdeletion_del_12_p11_21p11_23_within_an_unbalanced_translocation_t_7_12_q21_13_q23_1_implicates_new_candidate_loci_for_intellectual_disability_and_Kallmann_syndrome/26830957CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/268309572023-08-10T09:00:00Z
spellingShingle A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
Afif Ben-Mahmoud (13913550)
Biological sciences
Genetics
Biomedical and clinical sciences
Clinical sciences
Kallmann Syndrome (KS)
Intellectual Disability (ID)
Chromosomal Deletion
Candidate Genes
Phenotypic-Genotypic Comparison
Gene Expression
TSPAN11
status_str publishedVersion
title A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
title_full A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
title_fullStr A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
title_full_unstemmed A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
title_short A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
title_sort A cryptic microdeletion del(12)(p11.21p11.23) within an unbalanced translocation t(7;12)(q21.13;q23.1) implicates new candidate loci for intellectual disability and Kallmann syndrome
topic Biological sciences
Genetics
Biomedical and clinical sciences
Clinical sciences
Kallmann Syndrome (KS)
Intellectual Disability (ID)
Chromosomal Deletion
Candidate Genes
Phenotypic-Genotypic Comparison
Gene Expression
TSPAN11