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Yuan L, Yang R, Deng H. Auricular fistula: a review of its clinical manifestations, genetics, and treatments. J Mol Med (Berl) 2023; 101:1041-1058. [PMID: 37458758 DOI: 10.1007/s00109-023-02343-2] [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: 12/19/2022] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 09/07/2023]
Abstract
Auricular fistula is a common congenital auricular malformation, characterized as a small opening in the skin and a subcutaneous cyst. It can be classified in different ways according to positions of pits and directions of fistula tracts. The term preauricular fistula and variant type of preauricular fistula (postauricular fistula) are used. Auricular fistula prevalence varies in countries and populations, and its actual prevalence is presently unknown. The most accepted and widely cited theory of auricular fistula etiopathogenesis is an incorrect or incomplete fusion of six auricular hillocks that are mesenchymal proliferations. Auricular fistula can occur either sporadically or genetically. The pattern in inherited cases is thought to be incomplete autosomal dominant, with variable expressions, reduced penetrance, and inapparent gender differences. Auricular fistula has several forms and is reported as being a component of many syndromes. In the field of genetics, currently, there is no related review to comprehensively summarize the genetic basis of auricular fistula and related disorders. This article provides a comprehensive review of auricular fistula, especially congenital preauricular fistula, which accounts for the majority of auricular fistula, by summarizing the clinical manifestations, histological and embryological development, genetics, examinations, and treatments, as well as syndromes with auricular fistula.
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Affiliation(s)
- Lamei Yuan
- Health Management Center, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
- Disease Genome Research Center, Central South University, Changsha, 410013, China
- Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Ruikang Yang
- Health Management Center, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, 410013, China
- Disease Genome Research Center, Central South University, Changsha, 410013, China
| | - Hao Deng
- Health Management Center, the Third Xiangya Hospital, Central South University, Changsha, 410013, China.
- Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, Changsha, 410013, China.
- Disease Genome Research Center, Central South University, Changsha, 410013, China.
- Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, 410013, China.
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Zhu H, Zhao ZH, Zhu SY, Xiong F, He LH, Zhang Y, Wang J. Renal-hepatic-pancreatic dysplasia-1 with a novel NPHP3 genotype: a case report and review of the literature. BMC Pediatr 2022; 22:603. [PMID: 36253741 PMCID: PMC9578240 DOI: 10.1186/s12887-022-03659-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 10/05/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Renal-hepatic-pancreatic dysplasia type 1 (RHPD1) is a rare sporadic and autosomal recessive disorder with unknown incidence. RHPD1 is caused by biallelic pathogenic variants in NPHP3, which encode nephrocystin, an important component of the ciliary protein complex. CASE PRESENTATION In this case report, we describe a male newborn who was confirmed by ultrasound to have renal enlargement with multiple cysts, pancreatic enlargement with cysts, and increased liver echogenicity, leading to the clinical diagnosis of RHPD. In addition, a compound heterozygous pathogenic variant, namely, NPHP3 c.1761G > A (p. W587*) and the c.69delC (p. Gly24Ala24*11) variant, was detected by WES. The patient was clinically and genetically diagnosed with RHPD1. At 34 h of life, the infant died of respiratory insufficiency. CONCLUSION This is the first published case of RHPD1 in China. This study broadens the known range of RHPD1 due to NPHP3 pathogenic variants.
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Affiliation(s)
- Hui Zhu
- Department of Pediatrics, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
| | - Zhi-Hui Zhao
- Department of Neonatology, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
| | - Shu-Yao Zhu
- Department of Pediatrics, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
| | - Fu Xiong
- Department of Pediatrics, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
| | - Li-Hong He
- Ultrasonic Department, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
| | - Yong Zhang
- Department of Neonatology, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China.
| | - Jin Wang
- Department of Medical Genetics and Prenatal Diagnosis, Sichuan Provincial Maternity and Child Health Care Hospital, No. 290 West Second Street, Shayan Road, Chengdu, 610045, Sichuan, China
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Jordan P, Arrondel C, Bessières B, Tessier A, Attié-Bitach T, Guterman S, Morinière V, Antignac C, Saunier S, Gubler MC, Heidet L. Bi-allelic pathogenic variations in DNAJB11 cause Ivemark II syndrome, a renal-hepatic-pancreatic dysplasia. Kidney Int 2020; 99:405-409. [PMID: 33129895 DOI: 10.1016/j.kint.2020.09.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/10/2020] [Accepted: 09/17/2020] [Indexed: 12/16/2022]
Abstract
DNAJB11 (DnaJ Heat Shock Protein Family (Hsp40) Member B11) heterozygous loss of function variations have been reported in autosomal dominant cystic kidney disease with extensive fibrosis, associated with maturation and trafficking defect involving both the autosomal dominant polycystic kidney disease protein polycystin-1 and the autosomal dominant tubulointerstitial kidney disease protein uromodulin. Here we show that biallelic pathogenic variations in DNAJB11 lead to a severe fetal disease including enlarged cystic kidneys, dilation and proliferation of pancreatic duct cells, and liver ductal plate malformation, an association known as Ivemark II syndrome. Cysts of the kidney were developed exclusively from uromodulin negative tubular segments. In addition, tubular cells from the affected kidneys had elongated primary cilia, a finding previously reported in ciliopathies. Thus, our data show that the recessive disease associated with DNAJB11 variations is a ciliopathy rather than a disease of the autosomal dominant tubulointerstitial kidney disease spectrum, and prompt screening of DNAJB11 in fetal hyperechogenic/cystic kidneys.
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Affiliation(s)
- Penelope Jordan
- APHP, Génétique moléculaire, Hôpital universitaire Necker-Enfants malades, Paris, France
| | - Christelle Arrondel
- Laboratoire des Maladies rénales héréditaires, Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Bettina Bessières
- APHP, Embryofœtopathologie, Service d'Histologie-Embryologie-Cytogénétique, Hôpital universitaire Necker-Enfants malades, Paris, France
| | - Aude Tessier
- APHP, Embryofœtopathologie, Service d'Histologie-Embryologie-Cytogénétique, Hôpital universitaire Necker-Enfants malades, Paris, France
| | - Tania Attié-Bitach
- APHP, Embryofœtopathologie, Service d'Histologie-Embryologie-Cytogénétique, Hôpital universitaire Necker-Enfants malades, Paris, France; Université de Paris, Imagine Institute, Paris, France
| | - Sarah Guterman
- APHP, Obstétrique et Médecine fœtale, Hôpital universitaire Necker-Enfants malades, Paris, France
| | - Vincent Morinière
- APHP, Génétique moléculaire, Hôpital universitaire Necker-Enfants malades, Paris, France
| | - Corinne Antignac
- APHP, Génétique moléculaire, Hôpital universitaire Necker-Enfants malades, Paris, France; Laboratoire des Maladies rénales héréditaires, Institut Imagine, Inserm U1163, Université de Paris, Paris, France; Université de Paris, Imagine Institute, Paris, France
| | - Sophie Saunier
- Laboratoire des Maladies rénales héréditaires, Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Marie-Claire Gubler
- Laboratoire des Maladies rénales héréditaires, Institut Imagine, Inserm U1163, Université de Paris, Paris, France
| | - Laurence Heidet
- Laboratoire des Maladies rénales héréditaires, Institut Imagine, Inserm U1163, Université de Paris, Paris, France; APHP, Néphrologie pédiatrique, Centre de Référence MARHEA, Hôpital universitaire Necker-Enfants malades, Paris, France.
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Sharma S. Failure to Thrive, Jaundice, and Polyuria in Early Infancy: Common Presentation with an Uncommon Lethal Etiology. J Pediatr Genet 2020; 9:183-185. [PMID: 32714619 DOI: 10.1055/s-0039-1700802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/25/2019] [Indexed: 01/14/2023]
Abstract
A 5-month-old female infant from a consanguineous Indian Muslim family presented with polyuria, polydipsia, failure to thrive, impaired renal function, and neonatal hepatitis of unknown cause at 1 month of age. Clinical exome testing revealed renal-hepatic-pancreatic dysplasia caused by homozygous c. 1985 + 5G > A pathogenic variations in NPHP3 . Our case illustrates delay in confirmatory diagnosis of such rare disorders in our region due to the lack of suspicion and unawareness of the availability of genetic testing even when there are no cost constraints.
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Affiliation(s)
- Sonia Sharma
- Pediatric Nephrology Unit, Department of Pediatrics, Max Super Speciality Hospital, New Delhi, India
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Penchev V, Boueva A, Kamenarova K, Roussinov D, Tzveova R, Ivanova M, Dimitrova V, Kremensky I, Mitev V, Kaneva R, Beltcheva O. A familial case of severe infantile nephronophthisis explained by oligogenic inheritance. Eur J Med Genet 2017; 60:321-325. [PMID: 28392475 DOI: 10.1016/j.ejmg.2017.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 02/16/2017] [Accepted: 04/05/2017] [Indexed: 12/27/2022]
Abstract
Renal cysts are common malformation during the prenatal and postnatal period and frequent cause of chronic kidney or ESRD. More than 70 genes have been shown to play role in their pathology. Part of them are responsible for the structure and function of the cilia, which assigns a large proportion of the renal cystic diseases in the ciliopathies. Another group of genes responsible for cystic kidneys encodes transcription factors with crucial role during organogenesis. We describe here a systematic approach for identifying the genetic cause(s) of an unusually severe form of renal cystic disease in a family with multiple affected siblings. High throughput mutations screening of the parents and one of the children was applied for identifying the genetic causes of the disease. The affected child was found to have inherited 3 deleterious mutations in two nephronophthisis genes, NPHP3 and NPHP4. The possibility for epistatic interaction of the NPHP mutations as well as the modifying effect of other inherited genetic variants is discussed.
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Affiliation(s)
- Valentin Penchev
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Anelia Boueva
- SBAL Pediatric Diseases, Nephrology and Hemodialysis Clinic, Department of Pediatrics, Medical University of Sofia, Sofia 1606, Bulgaria
| | - Kunka Kamenarova
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Dimitar Roussinov
- SBAL Pediatric Diseases, Nephrology and Hemodialysis Clinic, Department of Pediatrics, Medical University of Sofia, Sofia 1606, Bulgaria
| | - Reni Tzveova
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Mariya Ivanova
- National Genetic Laboratory, University Obstetrics and Gynecology Hospital "Maichin Dom", Sofia 1463, Bulgaria; Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", Sofia 1164, Bulgaria
| | - Violeta Dimitrova
- University Obstetrics and Gynecology Hospital "Maichin Dom", Department of Obstetrics and Gynecology, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Ivo Kremensky
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Vanio Mitev
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Radka Kaneva
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria
| | - Olga Beltcheva
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Medical University of Sofia, Sofia 1463, Bulgaria.
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