Genetic analysis of a case with Al Kaissi syndrome and a literature review
10.3760/cma.j.cn511374-20221025-00717
- VernacularTitle:Al Kaissi综合征1例患儿的基因变异分析及文献复习
- Author:
Gege SUN
1
;
Ganye ZHAO
;
Shuang HU
;
Hua′nan REN
;
Li WANG
;
Li′na LIU
;
Xiangdong KONG
Author Information
1. 郑州大学第一附属医院遗传与产前诊断中心/妇产医学部，郑州 450052
- Keywords:
Whole exome sequencing;
CDK10 gene;
Al Kaissi syndrome;
Prenatal disgnosis
- From:
Chinese Journal of Medical Genetics
2024;41(2):193-198
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the genetic etiology of a child with delayed growth and development and carry out a literature review.Methods:A child suspected for Al Kaissi syndrome at the First Affiliated Hospital of Zhengzhou University on March 6, 2021 was selected as the study subject. Following extraction of genomic DNA, the child was subjected to copy number variation sequencing (CNV-seq) and whole exome sequencing (WES), and candidate variants were verified by PCR-agarose gel electrophoresis and quantitative real-time PCR (qPCR). Prenatal diagnosis was conducted on chorionic villi sample upon subsequent pregnancy.Results:The child, a 6-year-and-4-month-old boy, has dysmorphic features including low-set protruding ears and triangular face, delayed language and intellectual development, and ventricular septal defect. CNV-seq result has found no obvious abnormality, whilst WES revealed homozygous deletion of exons 1 and 2 of the CDK10 gene, which was confirmed by PCR -agarose gel electrophoresis and qPCR. Both of his parents were heterozygous carriers. Prenatal diagnosis using chorionic villi samples suggested that the fetus also carried the heterozygous deletion.Conclusion:The clinical features of Al Kaissi syndrome in this child can probably be attributed to the homozygous deletion of exons 1 and 2 of the CDK10 gene.
