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Hu J, Zhang Y, Yang Y, Wang L, Sun Y, Dong M. Case report: Prenatal diagnosis of Kagami–Ogata syndrome in a Chinese family. Front Genet 2022; 13:959666. [PMID: 36035167 PMCID: PMC9410364 DOI: 10.3389/fgene.2022.959666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of this work was to explore the genetic cause of the proband (Ⅲ2) presenting with polyhydramnios and gastroschisis. Copy number variation sequencing (CNV-seq), methylation-specific multiplex PCR (MS-PCR), and methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) were used to characterize the genetic etiology. CNV-seq revealed a deletion of 732.26 kb at 14q32.2q32.31 in the proband (Ⅲ2) and its mother (Ⅱ2). MS-PCR showed the maternal allele was missing in the proband, while paternal allele was missing in its mother. MS-MLPA showed deletion of the DLK1, MEG3, MIR380, and RTL1 genes of both the proband and its mother. MEG3 imprinting gene methylation increased in the proband, while decreased in its mother. It was indicated that a maternally transmitted deletion was responsible for Kagami–Ogata syndrome in the proband (Ⅲ2), and the de novo paternal deletion resulted in Temple syndrome in the mother (Ⅱ2). Prenatal diagnosis was provided at 17+3 weeks of pregnancy on the mother’s fourth pregnancy (Ⅲ4). Fortunately, the karyotype and single-nucleotide polymorphism array (SNP array) results were normal. The current investigation provided the detection methods for imprinted gene diseases, expanded the phenotype spectrum of the disease, and obtained the insight into the diagnosis, prenatal diagnosis, and genetic counseling of the disease.
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Affiliation(s)
- Junjie Hu
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ying Zhang
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yanmei Yang
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Liya Wang
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yixi Sun
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Minyue Dong
- Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Hangzhou, Zhejiang, China
- Key Laboratory of Women’s Reproductive Health of Zhejiang Province, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- *Correspondence: Minyue Dong,
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Sakaria RP, Mostafavi R, Miller S, Ward JC, Pivnick EK, Talati AJ. Kagami-Ogata Syndrome: Case Series and Review of Literature. AJP Rep 2021; 11:e65-e75. [PMID: 34055463 PMCID: PMC8159623 DOI: 10.1055/s-0041-1727287] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/08/2021] [Indexed: 12/16/2022] Open
Abstract
Kagami-Ogata syndrome (KOS) (OMIM #608149) is a genetic imprinting disorder affecting chromosome 14 that results in a characteristic phenotype consisting of typical facial features, skeletal abnormalities including rib abnormalities described as "coat hanger ribs," respiratory distress, abdominal wall defects, polyhydramnios, and developmental delay. First identified by Wang et al in 1991, over 80 cases of KOS have been reported in the literature. KOS, however, continues to remain a rare and potentially underdiagnosed disorder. In this report, we describe two unrelated male infants with differing initial presentations who were both found to have the characteristic "coat hanger" rib appearance on chest X-ray, raising suspicion for KOS. Molecular testing confirmed KOS in each case. In addition to these new cases, we reviewed the existing cases reported in literature. Presence of polyhydramnios, small thorax, curved ribs, and abdominal wall defects must alert the perinatologist toward the possibility of KOS to facilitate appropriate molecular testing. The overall prognosis of KOS remains poor. Early diagnosis allows for counseling by a multidisciplinary team and enables parents to make informed decisions regarding both pregnancy management and postnatal care.
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Affiliation(s)
- Rishika P Sakaria
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Roya Mostafavi
- Department of Oncology, Division of Cancer Predisposition, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Stephen Miller
- Department of Radiology, Le Bonheur Children's Hospital, University of Tennessee Health Science Center, Memphis, Tennessee.,Department of Pediatrics, Division of Medical Genetics, University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Jewell C Ward
- Department of Pediatrics, Division of Medical Genetics, University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Eniko K Pivnick
- Department of Pediatrics, Division of Medical Genetics, University of Tennessee Health Sciences Center, Memphis, Tennessee.,Department of Ophthalmology, University of Tennessee Health Sciences Center, Memphis, Tennessee
| | - Ajay J Talati
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
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Li F, Liu S, Jia B, Wu R, Chang Q. Prenatal Diagnosis of a Mosaic Paternal Uniparental Disomy for Chromosome 14: A Case Report of Kagami-Ogata Syndrome. Front Pediatr 2021; 9:691761. [PMID: 34746047 PMCID: PMC8566877 DOI: 10.3389/fped.2021.691761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 09/17/2021] [Indexed: 11/14/2022] Open
Abstract
The Kagami-Ogata syndrome (KOS) is a rare imprinting disorder with a distinct clinical phenotype. In KOS, polyhydramnios is associated with a small bell-shaped thorax and coat-hanger ribs. The genetic etiology of KOS includes paternal uniparental disomy 14 [upd(14)pat], epimutations, and microdeletions affecting the maternally derived imprinted region of chromosome 14q32.2. More than 77 cases of KOS have been reported; however, only one mosaic upd(14)pat case has been reported. Here we report a second mosaic upd(14)pat case. The prognosis of upd(14)pat patients is poor because of severe respiratory insufficiency. We summarized prenatal ultrasound findings of KOS to raise awareness of this condition for possible diagnosis of KOS prenatally when polyhydramnios combination with a small bell-shaped thorax and other related features are first observed. Prenatal diagnosis using methylation-specific multiplex ligation-dependent probe amplification (MLPA) or a single-nucleotide polymorphism-based microarray analysis is recommended.
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Affiliation(s)
- Fenxia Li
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Siping Liu
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bei Jia
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ruifeng Wu
- Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qingxian Chang
- Nanfang Hospital, Southern Medical University, Guangzhou, China
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