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Özdemir Ö, Dikici Ü, Yarar MH, Yamashita M, Morio T. A Rare AIOLOS N160S Variant Causing IEI in Human. J Clin Immunol 2024; 44:57. [PMID: 38296893 DOI: 10.1007/s10875-024-01657-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Affiliation(s)
- Öner Özdemir
- Division of Allergy and Immunology, Department of Pediatrics, Research and Training Hospital of Sakarya University, Faculty of Medicine, Sakarya University, Adnan Menderes Cad., Sağlık Sok., No. 195, Adapazarı, Sakarya, 54100, Turkey.
| | - Ümmügülsüm Dikici
- Division of Allergy and Immunology, Department of Pediatrics, Research and Training Hospital of Sakarya University, Faculty of Medicine, Sakarya University, Adnan Menderes Cad., Sağlık Sok., No. 195, Adapazarı, Sakarya, 54100, Turkey
| | - Murat Hakkı Yarar
- Department of Genetics, Ümraniye Training and Research Hospital, University of Health Sciences, Istanbul, 34766, Turkey
| | - Motoi Yamashita
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Aksu Uzunhan T, Ertürk B, Aydın K, Ayaz A, Altunoğlu U, Yarar MH, Gezdirici A, İçağasıoğlu DF, Gökpınar İli E, Uyanık B, Eser M, Kutbay YB, Topçu Y, Kılıç B, Bektaş G, Arduç Akçay A, Ekici B, Chousein A, Avcı Ş, Yüksel A, Kayserili H. Clinical and genetic spectrum from a prototype of ciliopathy: Joubert syndrome. Clin Neurol Neurosurg 2022; 224:107560. [PMID: 36580738 DOI: 10.1016/j.clineuro.2022.107560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 12/01/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Joubert syndrome is a neurodevelopmental disorder with a distinctive hindbrain malformation called molar tooth sign, causing motor and cognitive impairments. More than 40 genes have been associated with Joubert syndrome. We aim to describe a group of Joubert syndrome patients clinically and genetically emphasizing organ involvement. METHODS We retrospectively collected clinical information and molecular diagnosis data of 22 patients with Joubert syndrome from multiple facilities. Clinical exome or whole-exome sequencing were performed to identify causal variations in genes. RESULTS The most common variants were in the CPLANE1, CEP290, and TMEM67 genes, and other causative genes were AHI1, ARMC9, CEP41, CSPP1, HYLS1, KATNIP, KIAA0586, KIF7, RPGRIP1L, including some previously unreported variants in these genes. Multi-systemic organ involvement was observed in nine (40%) patients, with the eye being the most common, including Leber's congenital amaurosis, ptosis, and optic nerve coloboma. Portal hypertension and esophageal varices as liver and polycystic kidney disease and nephronophthisis as kidney involvement was encountered in our patients. The HYLS1 gene, which commonly causes hydrolethalus syndrome 1, was also associated with Joubert syndrome in one of our patients. A mild phenotype with hypophyseal hormone deficiencies without the classical molar tooth sign was observed with compound heterozygous and likely pathogenic variants not reported before in the KATNIP gene. CONCLUSION Some rare variants that display prominent genetic heterogeneity with variable severity are first reported in our patients. In our study of 22 Joubert syndrome patients, CPLANE1 is the most affected gene, and Joubert syndrome as a ciliopathy is possible without a classical molar tooth sign, like in the KATNIP gene-affected patients.
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Affiliation(s)
- Tuğçe Aksu Uzunhan
- Department of Pediatric Neurology, Prof. Dr. Cemil Taşcıoğlu City Hospital, İstanbul, Türkiye.
| | - Biray Ertürk
- Department of Medical Genetics, Prof. Dr. Cemil Taşcıoğlu City Hospital, İstanbul, Türkiye
| | - Kürşad Aydın
- Department of Pediatric Neurology, Medipol University, İstanbul, Türkiye
| | - Akif Ayaz
- Department of Medical Genetics, Medipol University, İstanbul, Türkiye
| | - Umut Altunoğlu
- Department of Medical Genetics, Koc University School of Medicine (KUSOM), Istanbul, Turkey
| | - Murat Hakkı Yarar
- Department of Medical Genetics, Ümraniye Research and Training Hospital, İstanbul, Türkiye
| | - Alper Gezdirici
- Department of Medical Genetics, Başakşehir Çam ve Sakura City Hospital, İstanbul, Türkiye
| | | | - Ezgi Gökpınar İli
- Department of Medical Genetics, Başakşehir Çam ve Sakura City Hospital, İstanbul, Türkiye
| | - Bülent Uyanık
- Department of Medical Genetics, BezmiAlem Vakif University, İstanbul, Türkiye
| | - Metin Eser
- Department of Medical Genetics, Ümraniye Research and Training Hospital, İstanbul, Türkiye
| | - Yaşar Bekir Kutbay
- Department of Medical Genetics, İzmir Tepecik Research and Training Hospital, İstanbul, Türkiye
| | - Yasemin Topçu
- Department of Pediatric Neurology, Medipol University, İstanbul, Türkiye
| | - Betül Kılıç
- Department of Pediatric Neurology, Medipol University, İstanbul, Türkiye
| | - Gonca Bektaş
- Department of Pediatric Neurology, Bakırköy Dr. Sadi Konuk Research and Training Hospital, İstanbul, Türkiye
| | - Ayfer Arduç Akçay
- Department of Pediatric Neurology, Koç University School of Medicine (KUSOM), İstanbul, Türkiye
| | - Barış Ekici
- Pediatric Neurology Clinic, İstanbul, Türkiye
| | - Amet Chousein
- Department of Pediatrics, Biruni University, İstanbul, Türkiye
| | - Şahin Avcı
- Department of Medical Genetics, Koc University School of Medicine (KUSOM), Istanbul, Turkey
| | - Atıl Yüksel
- Department of Obstetrics and Gynecology, İstanbul University, İstanbul Faculty of Medicine, İstanbul, Türkiye
| | - Hülya Kayserili
- Department of Medical Genetics, Koc University School of Medicine (KUSOM), Istanbul, Turkey
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