Clinical Characteristics and Novel ZEB2 Gene Mutation Analysis of Three Chinese Patients with Mowat-Wilson Syndrome

Abstract

Xiao Han,1 Qianjuan Zhang,2 Chengcheng Wang,3 Bingjuan Han4 1Department of Pediatrics, Jining First People’s Hospital, Jining, Shandong, 272011, People’s Republic of China; 2Department of Children’s Medical Rehabilitation Center, Jinan Maternity and Child Care Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250001, People’s Republic of China; 3Department of Pediatric Surgery, Jining First People’s Hospital, Jining, Shandong, 272011, People’s Republic of China; 4Department of Children’s Health Prevention, The Second Children & Women’s Healthcare of Jinan City, Jinan, Shandong, 271100, People’s Republic of ChinaCorrespondence: Bingjuan Han, Email [email protected]: Mowat-Wilson syndrome (MWS) is an autosomal dominant disease caused by a pathogenic variant of the ZEB2 gene. The main clinical manifestations include special facial features, Hirschsprung disease (HSCR), global developmental delay and other congenital malformations. Here, we summarize the clinical characteristics and genetic mutation analysis of three Chinese patients with MWS.Patients and Methods: The clinical characteristics of the patients were monitored and the treatment effect was followed up. DNA was extracted from peripheral blood and analyzed by sequencing. Whole exome sequencing was then performed.Results: Three novel ZEB2 gene mutations were identified in 3 patients (c.1147_1150dupGAAC, p.Q384Rfs*7, c.1137_1146del TAGTATGTCT, p.S380Nfs *13 and c.2718delT, p.A907Lfs*23). They all had special facial features, intellectual disability, developmental delay, microcephaly, structural brain abnormalities and other symptoms. After long-term regular rehabilitation treatment, the development quotient of each functional area of the patient was slightly improved.Conclusion: Our study expanded the mutation spectrum of ZEB2 and enriched our understanding of the clinical features of MWS. It also shows that long-term standardized treatment is of great significance for the prognosis of patients.Keywords: Mowat-Wilson syndrome, ZEB2, gene mutation, rehabilitation treatment, long-term follow-up

Keywords

• mowat-wilson syndrome
• zeb2
• gene mutation
• rehabilitation treatment
• long-term follow-up