1
|
Lin PA, Hung JH, Huang YH. Hétérochromie irienne causée par le syndrome de Waardenburg chez un nourrisson de 2 mois. CMAJ 2024; 196:E610-E611. [PMID: 38719218 PMCID: PMC11073823 DOI: 10.1503/cmaj.231616-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Affiliation(s)
- Po-An Lin
- Services d'ophtalmologie (Lin, Hung, Huang) et de médecine génomique (Hung), Hôpital de l'Université nationale Cheng Kung, École de médecine, Université nationale Cheng Kung; Institut de médecine clinique (Hung), École de médecine, Université nationale Cheng Kung, Tainan, Taiwan
| | - Jia-Horung Hung
- Services d'ophtalmologie (Lin, Hung, Huang) et de médecine génomique (Hung), Hôpital de l'Université nationale Cheng Kung, École de médecine, Université nationale Cheng Kung; Institut de médecine clinique (Hung), École de médecine, Université nationale Cheng Kung, Tainan, Taiwan
| | - Yi-Hsun Huang
- Services d'ophtalmologie (Lin, Hung, Huang) et de médecine génomique (Hung), Hôpital de l'Université nationale Cheng Kung, École de médecine, Université nationale Cheng Kung; Institut de médecine clinique (Hung), École de médecine, Université nationale Cheng Kung, Tainan, Taiwan.
| |
Collapse
|
2
|
Lin PA, Hung JH, Huang YH. Heterochromia caused by Waardenburg syndrome in a 2-month-old infant. CMAJ 2024; 196:E296. [PMID: 38467409 PMCID: PMC10927287 DOI: 10.1503/cmaj.231616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024] Open
Affiliation(s)
- Po-An Lin
- Departments of Ophthalmology (Lin, Hung, Huang) and Genomic Medicine (Hung), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Institute of Clinical Medicine (Hung), College of Medicine, National Cheng Kung University
| | - Jia-Horung Hung
- Departments of Ophthalmology (Lin, Hung, Huang) and Genomic Medicine (Hung), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Institute of Clinical Medicine (Hung), College of Medicine, National Cheng Kung University
| | - Yi-Hsun Huang
- Departments of Ophthalmology (Lin, Hung, Huang) and Genomic Medicine (Hung), National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University; Institute of Clinical Medicine (Hung), College of Medicine, National Cheng Kung University
| |
Collapse
|
3
|
Li S, He C, Mei L, Wu X, Feng Y, Song J. PAX3 mutation suppress otic progenitors proliferation and induce apoptosis by inhibiting WNT1/β-catenin signaling pathway in WS1 patient iPSC-derived inner ear organoids. Biochem Biophys Res Commun 2024; 698:149510. [PMID: 38278051 DOI: 10.1016/j.bbrc.2024.149510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/26/2023] [Accepted: 01/08/2024] [Indexed: 01/28/2024]
Abstract
Waardenburg syndrome type 1 (WS1) is a hereditary disease mainly characterized by sensorineural hearing loss, dystopia canthorum, and pigmentary defects. To elucidate molecular mechanisms underlying PAX3-associated hearing loss, we developed inner ear organoids model using induced pluripotent stem cells (iPSCs) derived from WS1 patient and healthy individual. Our results revealed a significant reduction in the size of inner ear organoids, accompanied by an increased level of apoptosis in organoids derived from WS1 patient-iPSCs carrying PAX3 c.214A > G. Transcriptome profiling analysis by RNA-seq indicated that inner ear organoids from WS1 patients were associated with suppression of inner ear development and WNT signaling pathway. Furthermore, the upregulation of the WNT1/β-catenin pathway which was achieved through the correction of PAX3 isogenic mutant iPSCs using CRISPR/Cas9, contributed to an increased size of inner ear organoids and a reduction in apoptosis. Together, our results provide insight into the underlying mechanisms of hearing loss in WS.
Collapse
Affiliation(s)
- SiJun Li
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China; Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Chufeng He
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China; Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Lingyun Mei
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China; Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Xuewen Wu
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China; Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Yong Feng
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Otorhinolaryngology, The Affiliated Maternal and Child Health Hospital of Hunan Province, Hengyang Medical School, University of South China, Changsha, Hunan, China; MOE Key Lab of Rare Pediatric Diseases & Institute of Otorhinolaryngology, Head and Neck Surgery, University of South China, Changsha, Hunan, China.
| | - Jian Song
- Department of Otolaryngology-Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Otolaryngology Major Disease Research Key Laboratory of Hunan Province, Changsha, Hunan, China; Clinical Research Center for Pharyngolaryngeal Diseases and Voice Disorders in Hunan Province, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Department of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| |
Collapse
|
4
|
Xiao X, Huang Y, Zhang J, Cao Y, Zhang M. Identification of two variants in PAX3 and FBN1 in a Chinese family with Waardenburg and Marfan syndrome via whole exome sequencing. Funct Integr Genomics 2023; 23:114. [PMID: 37000337 DOI: 10.1007/s10142-023-01012-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 04/01/2023]
Abstract
Both Warrensburg (WS) and Marfan syndrome (MFS) can impair the vision. Here, we recruited a Chinese family consisting of two WS affected individuals (II:1 and III:3) and five MFS affected individuals( I:1, II:2, III:1, III:2, and III:5) as well as one suspected MFS individual (II:4). Using whole exome sequencing (WES) and subsequent PCR-Sanger sequencing, we identified one novel heterozygous variant NM_000438 (PAX3) c.208 T > C, (p.Cys70Arg) from individuals with WS and one previous reported variant NM_000138 (FBN1) c.2740 T > A, (p.Cys914Ser) from individuals with MFS and co-segregated with the diseases. Real-time PCR and Western blot assay showed that, compared to their wild-type, both mRNAs and proteins of PAX3 and FBN1 mutants reduced in HKE293T cells. Together, our study identified two disease-causing variants in a same Chinese family with WS and MFS, and confirmed their damaged effects on their genes' expression. Therefore, those findings expand the mutation spectrum of PAX3 and provide a new perspective for the potential therapy.
Collapse
Affiliation(s)
- Xiaoqiang Xiao
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou, China.
| | - Yuqiang Huang
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou, China
| | - Jianqiang Zhang
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou, China
- The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yingjie Cao
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou, China
| | - Mingzhi Zhang
- Joint Shantou International Eye Center, Shantou University and the Chinese University of Hong Kong, Shantou, China
| |
Collapse
|