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Andeen NK, Hou J. Diagnostic Challenges and Emerging Pathogeneses of Selected Glomerulopathies. Pediatr Dev Pathol 2024; 27:387-410. [PMID: 38576387 DOI: 10.1177/10935266241237656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Recent progress in glomerular immune complex and complement-mediated diseases have refined diagnostic categories and informed mechanistic understanding of disease development in pediatric patients. Herein, we discuss selected advances in 3 categories. First, membranous nephropathy antigens are increasingly utilized to characterize disease in pediatric patients and include phospholipase A2 receptor (PLA2R), Semaphorin 3B (Sema3B), neural epidermal growth factor-like 1 (NELL1), and protocadherin FAT1, as well as the lupus membranous-associated antigens exostosin 1/2 (EXT1/2), neural cell adhesion molecule 1 (NCAM1), and transforming growth factor beta receptor 3 (TGFBR3). Second, we examine advances in techniques for paraffin and light chain immunofluorescence (IF), including the former's function as a salvage technique and their necessity for diagnosis in adolescent cases of membranous-like glomerulopathy with masked IgG kappa deposits (MGMID) and proliferative glomerulonephritis with monotypic Ig deposits (PGNMID), respectively. Finally, progress in understanding the roles of complement in pediatric glomerular disease is reviewed, with specific attention to overlapping clinical, histologic, and genetic or functional alternative complement pathway (AP) abnormalities among C3 glomerulopathy (C3G), infection-related and post-infectious GN, "atypical" post-infectious GN, immune complex mediated membranoproliferative glomerulonephritis (IC-MPGN), and atypical hemolytic uremic syndrome (aHUS).
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Affiliation(s)
- Nicole K Andeen
- Oregon Health & Science University, Department of Pathology and Laboratory Medicine, Portland, OR, USA
| | - Jean Hou
- Cedars-Sinai Medical Center, Department of Pathology, Los Angeles, CA, USA
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Wang Y, He QN. [Research progress on monogenic inherited glomerular diseases with central nervous system symptoms]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:652-658. [PMID: 38926384 DOI: 10.7499/j.issn.1008-8830.2312054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
To date, approximately 500 monogenic inherited kidney diseases have been reported, with more than 50 genes associated with the pathogenesis of monogenic isolated or syndromic nephrotic syndrome. Most of these genes are expressed in podocytes of the glomerulus. Neurological symptoms are common extrarenal manifestations of syndromic nephrotic syndrome, and various studies have found connections between podocytes and neurons in terms of morphology and function. This review summarizes the genetic and clinical characteristics of monogenic inherited diseases with concomitant glomerular and central nervous system lesions, aiming to enhance clinicians' understanding of such diseases, recognize the importance of genetic diagnostic techniques for comorbidity screening, and reduce the rates of missed diagnosis and misdiagnosis.
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Affiliation(s)
- Ying Wang
- Department of Pediatrics, Third Xiangya Hospital, Central South University, Changsha 410013, China
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3
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Wang TL, Miao XJ, Shuai YR, Sun HP, Wang X, Yang M, Zhang N. FAT1 inhibits the proliferation of DLBCL cells via increasing the m 6A modification of YAP1 mRNA. Sci Rep 2024; 14:11836. [PMID: 38782965 PMCID: PMC11116375 DOI: 10.1038/s41598-024-62793-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 05/21/2024] [Indexed: 05/25/2024] Open
Abstract
Emerging evidence shows that FAT atypical cadherin 1 (FAT1) mutations occur in lymphoma and are associated with poorer overall survival. Considering that diffuse large B cell lymphoma (DLBCL) is the category of lymphoma with the highest incidence rate, this study aims to explore the role of FAT1 in DLBCL. The findings demonstrate that FAT1 inhibits the proliferation of DLBCL cell lines by downregulating the expression of YAP1 rather than by altering its cellular localization. Mechanistic analysis via meRIP-qPCR/luciferase reporter assays showed that FAT1 increases the m6A modification of YAP1 mRNA 3'UTR and the subsequent binding of heterogeneous nuclear ribonucleoprotein D (HNRNPD) to the m6A modified YAP1 mRNA, thus decreasing the stability of YAP1 mRNA. Furthermore, FAT1 increases YAP1 mRNA 3'UTR m6A modification by decreasing the activity of the TGFβ-Smad2/3 pathway and the subsequent expression of ALKBH5, which is regulated at the transcriptional level by Smad2/3. Collectively, these results reveal that FAT1 inhibits the proliferation of DLBCL cells by increasing the m6A modification of the YAP1 mRNA 3'UTR via the TGFβ-Smad2/3-ALKBH5 pathway. The findings of this study therefore indicate that FAT1 exerts anti-tumor effects in DLBCL and may represent a novel target in the treatment of this form of lymphoma.
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MESH Headings
- Humans
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/pathology
- YAP-Signaling Proteins/metabolism
- YAP-Signaling Proteins/genetics
- Cell Proliferation
- Transcription Factors/metabolism
- Transcription Factors/genetics
- Cell Line, Tumor
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Gene Expression Regulation, Neoplastic
- 3' Untranslated Regions
- Cadherins/metabolism
- Cadherins/genetics
- Adenosine/metabolism
- Adenosine/analogs & derivatives
- Signal Transduction
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Affiliation(s)
- Tian-Long Wang
- Department of Medical, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, 610083, China
| | - Xiao-Juan Miao
- Department of Hematology, People's Liberation Army The General Hospital of Western Theater Command, Sichuan Clinical Research Center for Hematological Disease, Branch of National Clinical Research Center for Hematological Disease, Chengdu, 610083, China
| | - Yan-Rong Shuai
- Department of Hematology, People's Liberation Army The General Hospital of Western Theater Command, Sichuan Clinical Research Center for Hematological Disease, Branch of National Clinical Research Center for Hematological Disease, Chengdu, 610083, China
| | - Hao-Ping Sun
- Department of Hematology, People's Liberation Army The General Hospital of Western Theater Command, Sichuan Clinical Research Center for Hematological Disease, Branch of National Clinical Research Center for Hematological Disease, Chengdu, 610083, China
| | - Xiao Wang
- Department of Hematology, People's Liberation Army The General Hospital of Western Theater Command, Sichuan Clinical Research Center for Hematological Disease, Branch of National Clinical Research Center for Hematological Disease, Chengdu, 610083, China.
| | - Min Yang
- Department of Traditional Chinese Medicine, People's Liberation Army The General Hospital of Western Theater Command, Chengdu, 610083, China.
| | - Nan Zhang
- Department of Hematology, People's Liberation Army The General Hospital of Western Theater Command, Sichuan Clinical Research Center for Hematological Disease, Branch of National Clinical Research Center for Hematological Disease, Chengdu, 610083, China.
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Zou DF, Li XY, Lu XG, Wang HL, Song W, Zhang MW, Liu XR, Li BM, Liao JX, Zhong JM, Meng H, Li B. Association of FAT1 with focal epilepsy and correlation between seizure relapse and gene expression stage. Seizure 2024; 116:37-44. [PMID: 36941137 DOI: 10.1016/j.seizure.2023.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/13/2023] Open
Abstract
PURPOSE The FAT1 gene encodes FAT atypical cadherin 1, which is essential for foetal development, including brain development. This study aimed to investigate the relationship between FAT1 variants and epilepsy. METHODS Trio-based whole-exome sequencing was performed on a cohort of 313 patients with epilepsy. Additional cases with FAT1 variants were collected from the China Epilepsy Gene V.1.0 Matching Platform. RESULTS Four pairs of compound heterozygous missense FAT1 variants were identified in four unrelated patients with partial (focal) epilepsy and/or febrile seizures, but without intellectual disability/developmental abnormalities. These variants presented no/very low frequencies in the gnomAD database, and the aggregate frequencies in this cohort were significantly higher than those in controls. Two additional compound heterozygous missense variants were identified in two unrelated cases using the gene-matching platform. All patients experienced infrequent (yearly/monthly) complex partial seizures or secondary generalised tonic-clonic seizures. They responded well toantiseizure medication, but seizures relapsed in three cases when antiseizure medication were decreased or withdrawn after being seizure-free for three to six years, which correlated with the expression stage of FAT1. Genotype-phenotype analysis showed that epilepsy-associated FAT1 variants were missense, whereas non-epilepsy-associated variants were mainly truncated. The relationship between FAT1 and epilepsy was evaluated to be "Strong" by the Clinical Validity Framework of ClinGen. CONCLUSIONS FAT1 is a potential causative gene of partial epilepsy and febrile seizures. Gene expression stage was suggested to be one of the considerations in determining the duration ofantiseizure medication. Genotype-phenotype correlation helps to explain the mechanisms underlying phenotypic variation.
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Affiliation(s)
- Dong-Fang Zou
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China; Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Xiao-Yan Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China; Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Xin-Guo Lu
- Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Huai-Li Wang
- Department of Pediatric Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wang Song
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Meng-Wen Zhang
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Xiao-Rong Liu
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Bing-Mei Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China
| | - Jian-Xiang Liao
- Epilepsy Center and Department of Neurology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen, China
| | - Jian-Min Zhong
- Department of Neurology, Jiangxi Provincial Children's Hospital, Nanchang, China
| | - Heng Meng
- Department of Neurology, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou, China..
| | - Bin Li
- Institute of Neuroscience of Guangzhou Medical University and Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China.
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Sun Y, Jin D, Zhang Z, Jin D, Xue J, Duan L, Zhang Y, Kang X, Lian F. The critical role of the Hippo signaling pathway in kidney diseases. Front Pharmacol 2022; 13:988175. [PMID: 36483738 PMCID: PMC9723352 DOI: 10.3389/fphar.2022.988175] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/03/2022] [Indexed: 09/14/2023] Open
Abstract
The Hippo signaling pathway is involved in cell growth, proliferation, and apoptosis, and it plays a key role in regulating organ size, tissue regeneration, and tumor development. The Hippo signaling pathway also participates in the occurrence and development of various human diseases. Recently, many studies have shown that the Hippo pathway is closely related to renal diseases, including renal cancer, cystic kidney disease, diabetic nephropathy, and renal fibrosis, and it promotes the transformation of acute kidney disease to chronic kidney disease (CKD). The present paper summarizes and analyzes the research status of the Hippo signaling pathway in different kidney diseases, and it also summarizes the expression of Hippo signaling pathway components in pathological tissues of kidney diseases. In addition, the present paper discusses the positive therapeutic significance of traditional Chinese medicine (TCM) in regulating the Hippo signaling pathway for treating kidney diseases. This article introduces new targets and ideas for drug development, clinical diagnosis, and treatment of kidney diseases.
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Affiliation(s)
- Yuting Sun
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - De Jin
- Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Ziwei Zhang
- College of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
| | - Di Jin
- College of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
| | - JiaoJiao Xue
- College of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
| | - LiYun Duan
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - YuQing Zhang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - XiaoMin Kang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - FengMei Lian
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- College of Chinese Medicine, Changchun University of Chinese Medicine, Jilin, China
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Sethi S, Madden B, Casal Moura M, Nasr SH, Klomjit N, Gross L, Negron V, Charlesworth MC, Alexander MP, Leung N, Specks U, Fervenza FC, Haas M. Hematopoietic Stem Cell Transplant-Membranous Nephropathy Is Associated with Protocadherin FAT1. J Am Soc Nephrol 2022; 33:1033-1044. [PMID: 35321939 PMCID: PMC9063902 DOI: 10.1681/asn.2021111488] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/25/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Membranous nephropathy (MN) is a common cause of proteinuria in patients receiving a hematopoietic stem cell transplant (HSCT). The target antigen in HSCT-associated MN is unknown. METHODS We performed laser microdissection and tandem mass spectrometry (MS/MS) of glomeruli from 250 patients with PLA2R-negative MN to detect novel antigens in MN. This was followed by immunohistochemical (IHC)/immunofluorescence (IF) microscopy studies to localize the novel antigen. Western blot analyses using serum and IgG eluted from frozen biopsy specimen to detect binding of IgG to new 'antigen'. RESULTS MS/MS detected a novel protein, protocadherin FAT1 (FAT1), in nine patients with PLA2R-negative MN. In all nine patients, MN developed after allogeneic HSCT (Mayo Clinic discovery cohort). Next, we performed MS/MS in five patients known to have allogeneic HSCT-associated MN (Cedar Sinai validation cohort). FAT1 was detected in all five patients by MS/MS. The total spectral counts for FAT1 ranged from 8 to 39 (mean±SD, 20.9±10.1). All 14 patients were negative for known antigens of MN, including PLA2R, THSD7A, NELL1, PCDH7, NCAM1, SEMA3B, and HTRA1. Kidney biopsy specimens showed IgG (2 to 3+) with mild C3 (0 to 1+) along the GBM; IgG4 was the dominant IgG subclass. IHC after protease digestion and confocal IF confirmed granular FAT1 deposits along the GBM. Lastly, Western blot analyses detected anti-FAT1 IgG and IgG4 in the eluate obtained from pooled frozen kidney biopsy tissue and in the serum of those with FAT1-asssociated MN, but not from those with PLA2R-associated MN. CONCLUSIONS FAT1-associated MN appears to be a unique type of MN associated with HSCT. FAT1-associated MN represents a majority of MN associated with HSCT.
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Affiliation(s)
- Sanjeev Sethi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Benjamin Madden
- Medical Genome Facility, Proteomics Core, Mayo Clinic, Rochester, Minnesota
| | - Marta Casal Moura
- Division of Pulmonary and Critical Care, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Samih H. Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Nattawat Klomjit
- Division of Nephrology and Hypertension, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - LouAnn Gross
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Vivian Negron
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | | | - Mariam P. Alexander
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Nelson Leung
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Ulrich Specks
- Division of Pulmonary and Critical Care, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | | | - Mark Haas
- Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, California
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Jiao P, Zhang M, Wang Z, Liang G, Xie X, Zhang Y, Chen Z, Jiang Q, Loor JJ. Circ003429 Regulates Unsaturated Fatty Acid Synthesis in the Dairy Goat Mammary Gland by Interacting with miR-199a-3p, Targeting the YAP1 Gene. Int J Mol Sci 2022; 23:ijms23074068. [PMID: 35409428 PMCID: PMC8999533 DOI: 10.3390/ijms23074068] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 02/01/2023] Open
Abstract
Fatty acid composition is a key factor affecting the flavor and quality of goat milk. CircRNAs are now recognized as important regulators of transcription, and they play an important role in the control of fatty acid synthesis. Thus, understanding the regulatory mechanisms controlling this process in ruminant mammary glands is of great significance. In the present study, mammary tissue from dairy goats during early lactation and the dry period (nonlactating) were collected and used for high-throughput sequencing. Compared to levels during the dry period, the expression level of circ003429 during early lactation was lower (12.68-fold downregulated). In isolated goat mammary epithelial cells, circ003429 inhibited the synthesis of triglycerides (TAG) and decreased the content of unsaturated fatty acids (C16:1, C18:1, and C18:2), indicating that this circRNA plays an important role in regulating lipid synthesis. A binding site for miR-199a-3p in the circ003429 sequence was detected, and a dual-luciferase reporter system revealed that circ003429 targets miR-199a-3p. Overexpression of circ003429 (pcDNA-circ003429) downregulated the abundance of miR-199a-3p. In contrast, overexpression of miR-199a-3p increased TAG content and decreased mRNA abundance of Yes-associated protein 1 (YAP1) (a target gene of miR-199a-3p), and TAG content was decreased and mRNA abundance was increased in response to overexpression of circ003429. These results indicate that circ003429 alleviates the inhibitory effect of miR-199a-3p on the mRNA abundance of YAP1 by binding miR-199a-3p, resulting in subsequent regulation of the synthesis of TAG and unsaturated fatty acids.
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Affiliation(s)
- Peixin Jiao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Meimei Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Ziwei Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Gege Liang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Xiaolai Xie
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Yonggen Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (P.J.); (M.Z.); (Z.W.); (G.L.); (X.X.); (Y.Z.)
| | - Zhi Chen
- Jiangsu Key Laboratory of Animal Genetic Breeding and Molecular Design, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Correspondence: (Z.C.); (J.J.L.)
| | - Qianming Jiang
- Mammalian Nutrition Physiology Genomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA;
| | - Juan J. Loor
- Mammalian Nutrition Physiology Genomics, Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA;
- Correspondence: (Z.C.); (J.J.L.)
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Identification of causative gene mutation in an Iranian family with coloboma and nephropathy using whole exome sequencing. CEN Case Rep 2022; 11:404-407. [PMID: 35179696 DOI: 10.1007/s13730-022-00692-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/03/2022] [Indexed: 10/19/2022] Open
Abstract
Pathogenic variants in FAT1 gene have recently been described in association with coloboma, nephropathy, and facial dismorphism. Here we describe a 5-year-old Iranian boy with iris coloboma and nephropathy, born to an Iranian family. Extracted genomic DNA from blood sample was used to perform whole exome sequencing in the patient. The mutational screening revealed a homozygote Fat1 gene mutation c.5320A > G (p.17747Val), not previously reported in homozygote state in Iran. Our findings establish FAT1 as a gene with pleiotropic effects in human, emphasizing it as one of the causative genes in syndromic nephropathies.
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