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Taye N, Redhead C, Hubmacher D. Secreted ADAMTS-like proteins as regulators of connective tissue function. Am J Physiol Cell Physiol 2024; 326:C756-C767. [PMID: 38284126 DOI: 10.1152/ajpcell.00680.2023] [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: 12/07/2023] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 01/30/2024]
Abstract
The extracellular matrix (ECM) determines functional properties of connective tissues through structural components, such as collagens, elastic fibers, or proteoglycans. The ECM also instructs cell behavior through regulatory proteins, including proteases, growth factors, and matricellular proteins, which can be soluble or tethered to ECM scaffolds. The secreted a disintegrin and metalloproteinase with thrombospondin type 1 repeats/motifs-like (ADAMTSL) proteins constitute a family of regulatory ECM proteins that are related to ADAMTS proteases but lack their protease domains. In mammals, the ADAMTSL protein family comprises seven members, ADAMTSL1-6 and papilin. ADAMTSL orthologs are also present in the worm, Caenorhabditis elegans, and the fruit fly, Drosophila melanogaster. Like other matricellular proteins, ADAMTSL expression is characterized by tight spatiotemporal regulation during embryonic development and early postnatal growth and by cell type- and tissue-specific functional pleiotropy. Although largely quiescent during adult tissue homeostasis, reexpression of ADAMTSL proteins is frequently observed in the context of physiological and pathological tissue remodeling and during regeneration and repair after injury. The diverse functions of ADAMTSL proteins are further evident from disorders caused by mutations in individual ADAMTSL proteins, which can affect multiple organ systems. In addition, genome-wide association studies (GWAS) have linked single nucleotide polymorphisms (SNPs) in ADAMTSL genes to complex traits, such as lung function, asthma, height, body mass, fibrosis, or schizophrenia. In this review, we summarize the current knowledge about individual members of the ADAMTSL protein family and highlight recent mechanistic studies that began to elucidate their diverse functions.
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Affiliation(s)
- Nandaraj Taye
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Charlene Redhead
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Dirk Hubmacher
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States
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2
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Chen ZX, Jia WN, Sun Y, Chen TH, Zhao ZN, Lan LN, Liu Y, Song LH, Jiang YX. Biallelic ADAMTSL4 variants in a Chinese cohort of congenital ectopia lentis: Implications for genotype-phenotype relationships. Hum Mutat 2022; 43:2141-2152. [PMID: 36208099 DOI: 10.1002/humu.24483] [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: 04/19/2022] [Revised: 09/14/2022] [Accepted: 10/03/2022] [Indexed: 01/25/2023]
Abstract
ADAMTSL4 variants are one of the common causes of congenital ectopia lentis (EL), reported ocular comorbidities of which include iris anomalies, cataract, and glaucoma. However, a genotype-phenotype correlation has not been established. Potentially pathogenic ADAMTSL4 variants were screened from a Chinese cohort of congenital EL using panel-based next-generation sequencing followed by multiple bioinformatics analyses. The genotype-phenotype correlation was assessed via a systematic review of ADAMTSL4 variants within our data and those from the literature. A total of 12 variants of ADAMTSL4, including seven frameshift variants, one nonsense variant, two splicing variants, and two missense variants, were found in nine probands. Combing genetic and clinical information from 72 probands in the literature revealed 37 ADAMTSL4 variants known to cause EL, and the ethnic difference was prominent. The lens was inclined to dislocate inferior temporally (22, 27.16%), while the pupil was always located oppositely (9, 81.82%). Several anterior segments anomalies were identified, including ectopia pupillae (15, 18.52%), persistent pupillary membrane (9, 11.10%), poor pupil dilation (4, 30.8%), cataract (13, 24.10%), and glaucoma (8, 13.33%). Genotype-phenotype analysis revealed that truncation variants had higher risks of combined iris anomalies, including either ectopia pupillae or a persistent pupillary membrane (p = 0.007). The data from this study not only extend our knowledge of the ADAMTSL4 variant spectrum but also suggest that deleterious variants of ADAMTSL4 might be associated with severe ocular phenotypes.
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Affiliation(s)
- Ze-Xu Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Wan-Nan Jia
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yang Sun
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Tian-Hui Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Zhen-Nan Zhao
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Li-Na Lan
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yan Liu
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Ling-Hao Song
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
| | - Yong-Xiang Jiang
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Myopia (Fudan University); Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, China.,Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, China
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3
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Zhao J, Zhou Y, Zhang J, Zhang K, Shang L, Li J. Correlation between novel compound heterozygous ADAMTSL4 variants and primary phenotypes of ectopia lentis et pupillae. Exp Eye Res 2022; 224:109243. [PMID: 36089008 DOI: 10.1016/j.exer.2022.109243] [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: 07/07/2021] [Revised: 08/22/2022] [Accepted: 08/30/2022] [Indexed: 11/04/2022]
Abstract
PURPOSE To investigate molecular pathogenesis of congenital ectopia lentis accompanied by various ophthalmic manifestations in a pedigree. METHODS Three female siblings, their spouse and offspring underwent ophthalmic and general medical examinations. Genetic variants were screened with the whole exome sequencing and analyzed in either a dominant or recessive inheritance manner. Gene mutations were ascertained with the Sanger sequencing after the polymerase chain reaction. RESULTS All three female siblings were diagnosed as the Ectopia lentis et pupillae (ELeP) through combination of clinical examination and genetic analysis. No characteristic pathological changes of skeletal, metabolic and cardiac abnormalities were observed. Thirteen genetic variants were selected out through analyzing in the dominant or recessive inheritance manner, but they were not associated with EL. Among them, ALOX15B variant may explain the skin disease in this pedigree. After inspection the known genes related to EL, novel compound heterozygous mutations (p.Ser264LeufsX37/p.Gly757ValfsX62) in ADAMTSL4 were discreetly identified in this ELeP pedigree. CONCLUSIONS Novel compound heterozygous ADAMTSL4 variants are responsible for ELeP in the current pedigree. Correlation between ADAMTSL4 variants and ELeP was firstly established based on our 12 years follow-up studies and previous reports of ELeP and of ADAMTSL4-related eye disorders. The primary phenotypes caused by ADAMTSL4 variants include EL, EP, poor pupillary dilation, and axial elongation. Highly varying phenotypes including glaucoma, high myopia retinapathy, and poor vision and so on may be the secondary impairments. All these secondary impairments may be improved if proper clinical interventions are implemented in time.
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Affiliation(s)
- Junhong Zhao
- The Affiliated Hospital, Northwest University, Xi'an, 710069, China; Xi'an No.1 Hospital, Xi'an, 710002, China
| | - You Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Xi'an, 710069, China; College of Life Science, Northwest University, Xi'an, 710069, China
| | - Jing Zhang
- The Affiliated Hospital, Northwest University, Xi'an, 710069, China; Xi'an No.1 Hospital, Xi'an, 710002, China
| | - Kejin Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Xi'an, 710069, China; College of Life Science, Northwest University, Xi'an, 710069, China
| | - Lijun Shang
- School of Human Sciences, London Metropolitan University, London, N7 8DB, UK.
| | - Junlin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Xi'an, 710069, China; College of Life Science, Northwest University, Xi'an, 710069, China.
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4
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Mechanism of Disease: Recessive ADAMTSL4 Mutations and Craniosynostosis with Ectopia Lentis. Case Rep Genet 2022; 2022:3239260. [PMID: 35378950 PMCID: PMC8976637 DOI: 10.1155/2022/3239260] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/26/2022] [Indexed: 11/30/2022] Open
Abstract
Craniosynostosis, the premature fusion of the calvarial bones, has numerous etiologies. Among them, several involve mutations in genes related to the TGFb signaling pathway, a critical molecular mediator of human development. These TGFb pathway-associated craniosynostosis syndromes include Loeys–Dietz syndrome (LDS) and Shprintzen–Goldberg syndrome (SGS). LDS and SGS have many similarities common to fibrillinopathies, specifically Marfan syndrome (MFS), which is caused by mutations in FBN1. Historically discriminating features of MFS from LDS and SGS are (1) the presence of ectopia lentis (the subluxation/dislocation of the ocular lens) and (2) the absence of craniosynostosis. Curiously, several instances of a seemingly novel syndrome involving only craniosynostosis and ectopia lentis have recently been reported to be caused by recessive mutations in ADAMTSL4, a poorly characterized gene as of yet. Here, we report on two new cases of craniosynostosis with ectopia lentis, each harboring recessive mutations in ADAMTSL4. We also discuss a proposed mechanism for the relationship between ADAMTSL4, FBN1, and TGFb pathway-related syndromes.
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Akram H, Aragon-Martin JA, Chandra A. Marfan syndrome and the eye clinic: from diagnosis to management. THERAPEUTIC ADVANCES IN RARE DISEASE 2021; 2:26330040211055738. [PMID: 37181104 PMCID: PMC10032431 DOI: 10.1177/26330040211055738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 10/06/2021] [Indexed: 05/16/2023]
Abstract
Marfan syndrome (MFS) is an autosomal dominantly inherited disorder affecting the cardiovascular, ocular and musculoskeletal systems. Frequently, clinical suspicion and subsequent diagnosis begins in the ophthalmology clinic. Importantly, the ophthalmologist has a responsibility to cater not only to the eye, but also to be involved in a holistic approach for these patients. In this review, we discuss how MFS may present to an eye clinic, including clinical features, ocular morbidity, genetic diagnosis and management. Although this condition is ideally managed by a multidisciplinary team, our focus will be on MFS and the eye, including other conditions which may present with similar phenotypes. The ophthalmologist's role as the potential first contact for a patient with suspected MFS is crucial in making the proper investigations and referral, with the knowledge that not all ectopia lentis cases are MFS and vice versa. Management of ocular conditions in MFS may range from simple observation to surgical intervention; current options will be discussed.
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Affiliation(s)
- Haseeb Akram
- Southend University Hospital, Prittlewell
Chase, Westcliff-on-Sea SS0 0RY, Essex, UK
| | | | - Aman Chandra
- Southend University Hospital, Westcliff-on-Sea,
UK
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6
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Topa A, Rohlin A, Andersson MK, Fehr A, Lovmar L, Stenman G, Kölby L. NGS targeted screening of 100 Scandinavian patients with coronal synostosis. Am J Med Genet A 2019; 182:348-356. [PMID: 31837199 DOI: 10.1002/ajmg.a.61427] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 12/21/2022]
Abstract
Craniosynostosis (CS), the premature closure of one or more cranial sutures, occurs both as part of a syndrome or in isolation (nonsyndromic form). Here, we have studied the prevalence and spectrum of genetic alterations associated with coronal suture closure in 100 Scandinavian patients treated at a single craniofacial unit. All patients were phenotypically assessed and analyzed with a custom-designed 63 gene NGS-panel. Most cases (78%) were syndromic forms of CS. Pathogenic and likely pathogenic variants explaining the phenotype were found in 80% of the families with syndromic CS and in 14% of those with nonsyndromic CS. Sixty-five percent of the families had mutations in the CS core genes FGFR2, TWIST1, FGFR3, TCF12, EFNB1, FGFR1, and POR. Five novel pathogenic/likely pathogenic variants in TWIST1, TCF12, and EFNB1 were identified. We also found novel variants in SPECC1L, IGF1R, and CYP26B1 with a possible modulator phenotypic effect. Our findings demonstrate that NGS targeted sequencing is a powerful tool to detect pathogenic mutations in patients with coronal CS and further emphasize the importance of thorough assessment of the patient's phenotype for reliable interpretation of the molecular findings. This is particularly important in patients with complex phenotypes and rare forms of CS.
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Affiliation(s)
- Alexandra Topa
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Anna Rohlin
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mattias K Andersson
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - André Fehr
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lovisa Lovmar
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Göran Stenman
- Department of Laboratory Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Pathology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lars Kölby
- Department of Plastic Surgery, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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7
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Fève K, Foissac S, Pinton A, Mompart F, Esquerré D, Faraut T, Yerle M, Riquet J. Identification of a t(3;4)(p1.3;q1.5) translocation breakpoint in pigs using somatic cell hybrid mapping and high-resolution mate-pair sequencing. PLoS One 2017; 12:e0187617. [PMID: 29121641 PMCID: PMC5679599 DOI: 10.1371/journal.pone.0187617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 10/23/2017] [Indexed: 02/02/2023] Open
Abstract
Reciprocal translocations are the most frequently occurring constitutional structural rearrangements in mammalian genomes. In phenotypically normal pigs, an incidence of 1/200 is estimated for such rearrangements. Even if constitutional translocations do not necessarily induce defects and diseases, they are responsible for significant economic losses in domestic animals due to reproduction failures. Over the last 30 years, advances in molecular and cytogenetic technologies have led to major improvements in the resolution of the characterization of translocation events. Characterization of translocation breakpoints helps to decipher the mechanisms that lead to such rearrangements and the functions of the genes that are involved in the translocation. Here, we describe the fine characterization of a reciprocal translocation t(3;4) (p1.3;q1.5) detected in a pig line. The breakpoint was identified at the base-pair level using a positional cloning and chromosome walking strategy in somatic cell hybrids that were generated from an animal that carries this translocation. We show that this translocation occurs within the ADAMTSL4 gene and results in a loss of expression in homozygous carriers. In addition, by taking this translocation as a model, we used a whole-genome next-generation mate-pair sequencing approach on pooled individuals to evaluate this strategy for high-throughput screening of structural rearrangements.
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Affiliation(s)
- Katia Fève
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Sylvain Foissac
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Alain Pinton
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Florence Mompart
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Diane Esquerré
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Thomas Faraut
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Martine Yerle
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
| | - Juliette Riquet
- GenPhySE, Université de Toulouse, INRA, INPT, ENVT, Castanet-Tolosan, France
- * E-mail:
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8
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Overwater E, Floor K, van Beek D, de Boer K, van Dijk T, Hilhorst-Hofstee Y, Hoogeboom AJM, van Kaam KJ, van de Kamp JM, Kempers M, Krapels IPC, Kroes HY, Loeys B, Salemink S, Stumpel CTRM, Verhoeven VJM, Wijnands-van den Berg E, Cobben JM, van Tintelen JP, Weiss MM, Houweling AC, Maugeri A. NGS panel analysis in 24 ectopia lentis patients; a clinically relevant test with a high diagnostic yield. Eur J Med Genet 2017. [PMID: 28642162 DOI: 10.1016/j.ejmg.2017.06.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Several genetic causes of ectopia lentis (EL), with or without systemic features, are known. The differentiation between syndromic and isolated EL is crucial for further treatment, surveillance and counseling of patients and their relatives. Next generation sequencing (NGS) is a powerful tool enabling the simultaneous, highly-sensitive analysis of multiple target genes. OBJECTIVE The aim of this study was to evaluate the diagnostic yield of our NGS panel in EL patients. Furthermore, we provide an overview of currently described mutations in ADAMTSL4, the main gene involved in isolated EL. METHODS A NGS gene panel was analysed in 24 patients with EL. RESULTS A genetic diagnosis was confirmed in 16 patients (67%). Of these, four (25%) had a heterozygous FBN1 mutation, 12 (75%) were homozygous or compound heterozygous for ADAMTSL4 mutations. The known European ADAMTSL4 founder mutation c.767_786del was most frequently detected. CONCLUSION The diagnostic yield of our NGS panel was high. Causative mutations were exclusively identified in ADAMTSL4 and FBN1. With this approach the risk of misdiagnosis or delayed diagnosis can be reduced. The value and clinical implications of establishing a genetic diagnosis in patients with EL is corroborated by the description of two patients with an unexpected underlying genetic condition.
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Affiliation(s)
- E Overwater
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands; Department of Clinical Genetics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
| | - K Floor
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - D van Beek
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - K de Boer
- Department of Cardiology, VU University Medical Center, Amsterdam, The Netherlands
| | - T van Dijk
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - Y Hilhorst-Hofstee
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - A J M Hoogeboom
- Department of Clinical Genetics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - K J van Kaam
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - J M van de Kamp
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - M Kempers
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - I P C Krapels
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands
| | - H Y Kroes
- Department of Clinical Genetics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - B Loeys
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - S Salemink
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - C T R M Stumpel
- Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, The Netherlands; Department of Clinical Genetics and School for Oncology & Developmental Biology (GROW), Maastricht University Medical Center, Maastricht, The Netherlands
| | - V J M Verhoeven
- Department of Clinical Genetics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands; Department of Ophthalmology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - J M Cobben
- Department of Medical Genetics, St George's University Hospital London, London, United Kingdom; Department of Pediatrics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - J P van Tintelen
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands; Department of Clinical Genetics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - M M Weiss
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - A C Houweling
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - A Maugeri
- Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
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9
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van Bysterveldt KA, al Taie R, Ikink W, Oliver VF, Vincent AL. ADAMTSL4 assessment in ectopia lentis reveals a recurrent founder mutation in Polynesians. Ophthalmic Genet 2017; 38:537-543. [DOI: 10.1080/13816810.2017.1309552] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Katherine A. van Bysterveldt
- Department of Ophthalmology, FMHS, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
| | - Rasha al Taie
- Department of Ophthalmology, FMHS, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
- Department of Ophthalmology, Manukau SuperClinic, Counties Manukau District Health Board, Auckland, New Zealand
| | - Will Ikink
- Department of Ophthalmology, FMHS, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
| | - Verity F. Oliver
- Department of Ophthalmology, FMHS, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
| | - Andrea L. Vincent
- Department of Ophthalmology, FMHS, New Zealand National Eye Centre, University of Auckland, Auckland, New Zealand
- Eye Department, Greenlane Clinical Centre, Auckland District Health Board, Auckland, New Zealand
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10
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Wu A, Collins ME. Newer Understanding of Eye Issues in Craniofacial Malformations. CURRENT OPHTHALMOLOGY REPORTS 2015. [DOI: 10.1007/s40135-015-0084-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Collin GB, Hubmacher D, Charette JR, Hicks WL, Stone L, Yu M, Naggert JK, Krebs MP, Peachey NS, Apte SS, Nishina PM. Disruption of murine Adamtsl4 results in zonular fiber detachment from the lens and in retinal pigment epithelium dedifferentiation. Hum Mol Genet 2015; 24:6958-74. [PMID: 26405179 DOI: 10.1093/hmg/ddv399] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/21/2015] [Indexed: 12/16/2022] Open
Abstract
Human gene mutations have revealed that a significant number of ADAMTS (a disintegrin-like and metalloproteinase (reprolysin type) with thrombospondin type 1 motifs) proteins are necessary for normal ocular development and eye function. Mutations in human ADAMTSL4, encoding an ADAMTS-like protein which has been implicated in fibrillin microfibril biogenesis, cause ectopia lentis (EL) and EL et pupillae. Here, we report the first ADAMTSL4 mouse model, tvrm267, bearing a nonsense mutation in Adamtsl4. Homozygous Adamtsl4(tvrm267) mice recapitulate the EL phenotype observed in humans, and our analysis strongly suggests that ADAMTSL4 is required for stable anchorage of zonule fibers to the lens capsule. Unexpectedly, homozygous Adamtsl4(tvrm267) mice exhibit focal retinal pigment epithelium (RPE) defects primarily in the inferior eye. RPE dedifferentiation was indicated by reduced pigmentation, altered cellular morphology and a reduction in RPE-specific transcripts. Finally, as with a subset of patients with ADAMTSL4 mutations, increased axial length, relative to age-matched controls, was observed and was associated with the severity of the RPE phenotype. In summary, the Adamtsl4(tvrm267) model provides a valuable tool to further elucidate the molecular basis of zonule formation, the pathophysiology of EL and ADAMTSL4 function in the maintenance of the RPE.
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Affiliation(s)
| | - Dirk Hubmacher
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | | | | | - Lisa Stone
- The Jackson Laboratory, Bar Harbor, ME, USA
| | - Minzhong Yu
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA, Department of Ophthalmology, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA and
| | | | | | - Neal S Peachey
- Cole Eye Institute, Cleveland Clinic, Cleveland, OH, USA, Department of Ophthalmology, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA and Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA
| | - Suneel S Apte
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
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Neuhann TM, Stegerer A, Riess A, Blair E, Martin T, Wieser S, Kläs R, Bouman A, Kuechler A, Rittinger O. ADAMTSL4-associated isolated ectopia lentis: Further patients, novel mutations and a detailed phenotype description. Am J Med Genet A 2015; 167A:2376-81. [PMID: 25975359 DOI: 10.1002/ajmg.a.37157] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 04/27/2015] [Indexed: 12/25/2022]
Abstract
ADAMTSL4 mutations seem to be the most common cause of isolated ectoplia lentis (EL) and thus are important concerning the differential diagnosis of connective tissue syndromes with EL as main feature. In this study, we describe an additional cohort of patients with apparently isolated EL. All underwent a detailed clinical exam with cardiac evaluation combined with ADAMTSL4 mutation analysis. Mutations were identified in 12/15 patients with EL. Besides the European founder mutation p. (Gln256Profs*38) we identified five further mutations not yet described in the literature: p. (Leu249Tyrfs*21), p. (Ala388Glyfs*8), p. (Arg746His), p. (Gly592Ser), and p. (Arg865His). Clinical evaluation showed common additional ocular features such as high myopia, but no major systemic findings. In particular: no dilatation of the aortic root was reported on. This report increases the total number of patients with ADAMTSL4 mutations reported on today and reviews in detail the clinical findings in all patients reported on to date demonstrate, that these patients have a mainly ocular phenotype. There are no consistent systemic findings. The differentiation between syndromic and isolated EL is crucial for the further surveillance, treatment, and counseling of these patients, especially in young children.
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Affiliation(s)
| | | | - Angelika Riess
- Institute of Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Edward Blair
- Department of Clinical Genetics, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
| | - Thomas Martin
- Gemeinschaftspraxis für Humangenetik, Homburg, Germany
| | - Stefanie Wieser
- Klinische Genetik, Universitätskinderklinik, Paracelsus Medizinische Privatuniversität, Salzburg, Austria
| | - Rüdiger Kläs
- Synlab MVZ Humangenetik Mannheim, Mannheim, Germany
| | - Arjan Bouman
- Department of Clinical Genetics, Academic Medical Center, Amsterdam, The Netherlands
| | - Alma Kuechler
- Institut für Humangenetik, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Olaf Rittinger
- Klinische Genetik, Universitätskinderklinik, Paracelsus Medizinische Privatuniversität, Salzburg, Austria
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Dubail J, Apte SS. Insights on ADAMTS proteases and ADAMTS-like proteins from mammalian genetics. Matrix Biol 2015; 44-46:24-37. [PMID: 25770910 DOI: 10.1016/j.matbio.2015.03.001] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/03/2015] [Accepted: 03/04/2015] [Indexed: 01/05/2023]
Abstract
The mammalian ADAMTS superfamily comprises 19 secreted metalloproteinases and 7 ADAMTS-like proteins, each the product of a distinct gene. Thus far, all appear to be relevant to extracellular matrix function or to cell-matrix interactions. Most ADAMTS functions first emerged from analysis of spontaneous human and animal mutations and genetically engineered animals. The clinical manifestations of Mendelian disorders resulting from mutations in ADAMTS2, ADAMTS10, ADAMTS13, ADAMTS17, ADAMTSL2 and ADAMTSL4 identified essential roles for each gene, but also suggested potential cooperative functions of ADAMTS proteins. These observations were extended by analysis of spontaneous animal mutations, such as in bovine ADAMTS2, canine ADAMTS10, ADAMTS17 and ADAMTSL2 and mouse ADAMTS20. These human and animal disorders are recessive and their manifestations appear to result from a loss-of-function mechanism. Genome-wide analyses have determined an association of some ADAMTS loci such as ADAMTS9 and ADAMTS7, with specific traits and acquired disorders. Analysis of genetically engineered rodent mutations, now achieved for over half the superfamily, has provided novel biological insights and animal models for the respective human genetic disorders and suggested potential candidate genes for related human phenotypes. Engineered mouse mutants have been interbred to generate combinatorial mutants, uncovering cooperative functions of ADAMTS proteins in morphogenesis. Specific genetic models have provided crucial insights on mechanisms of osteoarthritis (OA), a common adult-onset degenerative condition. Engineered mutants will facilitate interpretation of exome variants identified in isolated birth defects and rare genetic conditions, as well as in genome-wide screens for trait and disease associations. Mammalian forward and reverse genetics, together with genome-wide analysis, together constitute a powerful force for revealing the functions of ADAMTS proteins in physiological pathways and health disorders. Their continuing use, together with genome-editing technology and the ability to generate stem cells from mutants, presents numerous opportunities for advancing basic knowledge, human disease pathways and therapy.
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Affiliation(s)
- Johanne Dubail
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA
| | - Suneel S Apte
- Cleveland Clinic Lerner Research Institute, Cleveland, OH, USA.
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Chandra A, Jones M, Cottrill P, Eastlake K, Limb GA, Charteris DG. Gene expression and protein distribution of ADAMTSL-4 in human iris, choroid and retina. Br J Ophthalmol 2013; 97:1208-12. [DOI: 10.1136/bjophthalmol-2013-303353] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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