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Xie G, Zhang Y, Yang W, Yang L, Wang R, Xu M, Sun L, Zhang B, Cui X. Case report: A novel CASK mutation in a Chinese female child with microcephaly with pontine and cerebellar hypoplasia. Front Genet 2022; 13:856636. [PMID: 36159992 PMCID: PMC9490368 DOI: 10.3389/fgene.2022.856636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 08/05/2022] [Indexed: 11/13/2022] Open
Abstract
Objective: Microcephaly with pontine and cerebellar hypoplasia (MICPCH) is a rare X-linked dominant genetic disease, and most MICPCHs are ascribed to CASK mutations, while few are revealed in Chinese patients. This study aims to identify the pathogenic mutation in a Chinese proband with MICPCH.Methods: A 3-year-old female Chinese proband with MICPCH and her parents were included. Clinical data were collected from the medical records and recalled by the proband’s mother. Whole genome sequencing and Sanger sequencing were used to find the pathogenic mutation of MICPCH.Results: The proband presented with postnatal progressive microcephaly, cerebellar hypoplasia, intellectual disability, motor and language development retardation and limb hypertonia. Genetic analysis indicated that there was a novel compound heterozygote nonsynonymous mutation, c.755T>C(p.Leu252Pro) in exon8 of CASK gene in the proband, but not in her parents. This CASK mutation has not been reported in other databases.Conclusion: This study broadens the mutation spectrum of the CASK gene and is of great value for precise prenatal diagnosis and genetic counseling.
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Affiliation(s)
- Guilan Xie
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Yan Zhang
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wenfang Yang
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Wenfang Yang,
| | - Liren Yang
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Ruiqi Wang
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Mengmeng Xu
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Landi Sun
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Boxing Zhang
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, China
| | - Xiaoyi Cui
- Department of Obstetrics and Gynecology, Maternal and Child Health Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
- Peking University Health Science Center, Beijing, China
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