Takayasu Mori, Takuya Fujimaru, Chunyu Liu, Karynne Patterson, Kouhei Yamamoto, Takefumi Suzuki, Motoko Chiga, Akinari Sekine, Yoshifumi Ubara, Danny E Miller, Miranda P G Zalusky, Shintaro Mandai, Fumiaki Ando, Yutaro Mori, Hiroaki Kikuchi, Koichiro Susa, Jessica X Chong, Michael J Bamshad, Yue-Qiu Tan, Feng Zhang, Shinichi Uchida, Eisei Sohara
{"title":"CFAP47 is Implicated in X-Linked Polycystic Kidney Disease.","authors":"Takayasu Mori, Takuya Fujimaru, Chunyu Liu, Karynne Patterson, Kouhei Yamamoto, Takefumi Suzuki, Motoko Chiga, Akinari Sekine, Yoshifumi Ubara, Danny E Miller, Miranda P G Zalusky, Shintaro Mandai, Fumiaki Ando, Yutaro Mori, Hiroaki Kikuchi, Koichiro Susa, Jessica X Chong, Michael J Bamshad, Yue-Qiu Tan, Feng Zhang, Shinichi Uchida, Eisei Sohara","doi":"10.1016/j.ekir.2024.09.013","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Autosomal dominant polycystic kidney disease (ADPKD) is a well-described condition in which approximately 80% of all cases have a genetic explanation; and among sporadic cases without a family history, the genetic bases remain unclear in approximately 30% of cases. This study aimed to identify genes associated with polycystic kidney disease (PKD) in patients with sporadic cystic kidney disease in which a clear genetic change was not identified in established genes.</p><p><strong>Methods: </strong>A next-generation sequencing panel analyzed known genes related to kidney cysts in 118 sporadic cases, followed by whole-genome sequencing (WGS) on 47 unrelated individuals without identified candidate variants. Immunohistology examination was then conducted on both human kidney tissue and kidneys from CFAP47<sup>-/Y</sup> mice.</p><p><strong>Results: </strong>Three male patients were found to have rare missense variants in the X-linked gene cilia and flagella-associated protein 47 (CFAP47), none of whom had a family history of the condition. CFAP47 was expressed in primary cilia of human kidney tubules, and knockout (KO) mice exhibited vacuolation of tubular cells and tubular dilation, providing evidence that CFAP47 is a causative gene involved in cyst formation.</p><p><strong>Conclusion: </strong>This discovery of CFAP47 as a newly identified gene associated with PKD, displaying X-linked inheritance, emphasizes the need for further cases to understand the role of CFAP47 in PKD.</p>","PeriodicalId":17761,"journal":{"name":"Kidney International Reports","volume":"9 12","pages":"3580-3591"},"PeriodicalIF":5.7000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11652189/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kidney International Reports","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.ekir.2024.09.013","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Introduction: Autosomal dominant polycystic kidney disease (ADPKD) is a well-described condition in which approximately 80% of all cases have a genetic explanation; and among sporadic cases without a family history, the genetic bases remain unclear in approximately 30% of cases. This study aimed to identify genes associated with polycystic kidney disease (PKD) in patients with sporadic cystic kidney disease in which a clear genetic change was not identified in established genes.
Methods: A next-generation sequencing panel analyzed known genes related to kidney cysts in 118 sporadic cases, followed by whole-genome sequencing (WGS) on 47 unrelated individuals without identified candidate variants. Immunohistology examination was then conducted on both human kidney tissue and kidneys from CFAP47-/Y mice.
Results: Three male patients were found to have rare missense variants in the X-linked gene cilia and flagella-associated protein 47 (CFAP47), none of whom had a family history of the condition. CFAP47 was expressed in primary cilia of human kidney tubules, and knockout (KO) mice exhibited vacuolation of tubular cells and tubular dilation, providing evidence that CFAP47 is a causative gene involved in cyst formation.
Conclusion: This discovery of CFAP47 as a newly identified gene associated with PKD, displaying X-linked inheritance, emphasizes the need for further cases to understand the role of CFAP47 in PKD.
期刊介绍:
Kidney International Reports, an official journal of the International Society of Nephrology, is a peer-reviewed, open access journal devoted to the publication of leading research and developments related to kidney disease. With the primary aim of contributing to improved care of patients with kidney disease, the journal will publish original clinical and select translational articles and educational content related to the pathogenesis, evaluation and management of acute and chronic kidney disease, end stage renal disease (including transplantation), acid-base, fluid and electrolyte disturbances and hypertension. Of particular interest are submissions related to clinical trials, epidemiology, systematic reviews (including meta-analyses) and outcomes research. The journal will also provide a platform for wider dissemination of national and regional guidelines as well as consensus meeting reports.