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Exome sequencing in Crisponi/cold‐induced sweating syndrome–like individuals reveals unpredicted alternative diagnoses

Angius, A; Uva, P; Oppo, M; Buers, I; Persico, I; Onano, S; Cuccuru, G; ... Crisponi, L; + view all (2019) Exome sequencing in Crisponi/cold‐induced sweating syndrome–like individuals reveals unpredicted alternative diagnoses. Clinical Genetics , 95 (5) pp. 607-614. 10.1111/cge.13532. Green open access

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Abstract

Crisponi/cold‐induced sweating syndrome (CS/CISS) is a rare autosomal recessive disorder characterized by a complex phenotype (hyperthermia and feeding difficulties in the neonatal period, followed by scoliosis and paradoxical sweating induced by cold since early childhood) and a high neonatal lethality. CS/CISS is a genetically heterogeneous disorder caused by mutations in CRLF1 (CS/CISS1), CLCF1 (CS/CISS2) and KLHL7 (CS/CISS‐like). Here, a whole exome sequencing approach in individuals with CS/CISS‐like phenotype with unknown molecular defect revealed unpredicted alternative diagnoses. This approach identified putative pathogenic variations in NALCN, MAGEL2 and SCN2A. They were already found implicated in the pathogenesis of other syndromes, respectively the congenital contractures of the limbs and face, hypotonia, and developmental delay syndrome, the Schaaf‐Yang syndrome, and the early infantile epileptic encephalopathy‐11 syndrome. These results suggest a high neonatal phenotypic overlap among these disorders and will be very helpful for clinicians. Genetic analysis of these genes should be considered for those cases with a suspected CS/CISS during neonatal period who were tested as mutation negative in the known CS/CISS genes, because an expedited and corrected diagnosis can improve patient management and can provide a specific clinical follow‐up.

Type: Article
Title: Exome sequencing in Crisponi/cold‐induced sweating syndrome–like individuals reveals unpredicted alternative diagnoses
Location: Denmark
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/cge.13532
Publisher version: https://doi.org/10.1111/cge.13532
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Crisponi/Cold induced sweating syndrome; CRLF1; MAGEL2; NALCN; SCN2A; whole exome sequencing
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Developmental Neurosciences Dept
URI: https://discovery.ucl.ac.uk/id/eprint/10071015
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