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Chromosome 15q BP3 to BP5 deletion is a likely locus for speech delay and language impairment: Report on a four-member family and an unrelated boy
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Piero Pavone, Martino Ruggieri, Simona D Marino, Giovanni Corsello, Xena Pappalardo, Agata Polizzi, Enrico Parano, Catia Romano, Silvia Marino, Andrea Domenico Praticò, Raffaele Falsaperla. - 2020
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Abstract:
Background: Deletions in chromosome 15q13 have been reported both in healthy people and individuals with a wide range of behavioral and neuropsychiatric disturbances. Six main breakpoint (BP) subregions (BP1-BP6) are mapped to the 15q13 region and three further embedded BP regions (BP3-BP5). The deletion at BP4-BP5 is the rearrangement most frequently observed compared to other known deletions in BP3-BP5 and BP3-BP4 regions. Deletions of each of these three regions have previously been implicated in a variable range of clinical phenotypes, including minor dysmorphism, developmental delay/intellectual disability, epilepsy, autism spectrum disorders, behavioral disturbances, and speech disorders. Of note, no overt clinical difference among each group of BP region deletions has been recorded so far. Methods: We report on a four-member family plus an additional unrelated boy affected by a BP3-BP5 deletion that presented with typical clinical signs including speech delay and language impairment. A review of the clinical features associated with the three main groups of BP regions (BP4-BP5, BP3-BP5, and BP3-BP4) deletions is reported. Results: Array-CGH analysis revealed in the mother (case 1) and in her three children (cases 2, 3, and 4), as well as in the unrelated boy (case 5), the following rearrangement: arr (hg19) 15q13.1-q13.3 (29.213.402-32.510.863) x1. Conclusion: This report, along with other recent observations, suggests the hypothesis that the BP region comprised between BP3 and BP5 in chromosome 15q13 is involved in several brain human dysfunctions, including impairment of the language development and, its deletion, may be directly or indirectly responsible for the speech delay and language deficit in the affected individuals.
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Keyword:
BP3-BP5 deletion; chromosome 15 q13; developmental delay; language impairment; Settore MED/38 - Pediatria Generale E Specialistica; speech delay
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URL: http://hdl.handle.net/10447/510625
https://doi.org/10.1002/mgg3.1109
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Pathogenic variants in USP7 cause a neurodevelopmental disorder with speech delays, altered behavior, and neurologic anomalies.
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In: Genetics in medicine : official journal of the American College of Medical Genetics, vol 21, iss 8 (2019)
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Developmental social communication deficits in the Shank3 rat model of phelan-mcdermid syndrome and autism spectrum disorder.
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In: Autism research : official journal of the International Society for Autism Research, vol 11, iss 4 (2018)
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Defining the Effect of the 16p11.2 Duplication on Cognition, Behavior, and Medical Comorbidities.
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In: Jama Psychiatry, vol. 73, no. 1, pp. 20-30 (2016)
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The Number of Genomic Copies at the 16p11.2 Locus Modulates Language, Verbal Memory, and Inhibition.
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In: Biological psychiatry, vol. 80, no. 2, pp. 129-139 (2016)
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Deletion of chromosome 12q21 affecting KCNC2 and ATXN7L3B in a family with neurodevelopmental delay and ataxia.
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In: J Neurol Neurosurg Psychiatry , 84 (11) 1255 - 1257. (2013) (2013)
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A 600 kb deletion syndrome at 16p11.2 leads to energy imbalance and neuropsychiatric disorders.
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In: Journal of Medical Genetics, vol. 49, no. 10, pp. 660-668 (2012)
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Microdeletion at chromosome 4q21 defines a new emerging syndrome with marked growth restriction, mental retardation and absent or severely delayed speech
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In: ISSN: 0022-2593 ; EISSN: 1468-6244 ; Journal of Medical Genetics ; https://hal.archives-ouvertes.fr/hal-02128729 ; Journal of Medical Genetics, BMJ Publishing Group, 2010, 47 (6), pp.377-384. ⟨10.1136/jmg.2009.071902⟩ (2010)
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Altered ultrasonic vocalization and impaired learning and memory in Angelman syndrome mouse model with a large maternal deletion from Ube3a to Gabrb3.
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1.3 Mb de novo Deletion in Chromosome Band 3q29 Associated with Normal Intelligence in a Child
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In: DTIC (2010)
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A specific pathway can be identified between genetic characteristics and behaviour profiles in Prader-Willi syndrome via cognitive, environmental and physiological mechanisms.
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Detection, breakpoint identification and detailed characterisation of a CNV at the FRA16D site using SNP assays.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2008)
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Clinical features in four patients with Angelman syndrome resulting from paternal uniparental disomy
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Molecular genetic delineation of a deletion of chromosome 13q12-->q13 in a patient with autism and auditory processing deficits.
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In: Cytogenetic and genome research, vol 98, iss 4 (2002)
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The SPCH1 region on human 7q31: genomic characterization of the critical interval and localization of translocations associated with speech and language disorder.
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In: Symplectic Elements at Oxford ; Europe PubMed Central ; PubMed (http://www.ncbi.nlm.nih.gov/pubmed/) ; Web of Science (Lite) (http://apps.webofknowledge.com/summary.do) ; Scopus (http://www.scopus.com/home.url) ; CrossRef (2000)
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