1
|
Li B, Xie T, Nawy S, Shen Y. The development and the genetic diseases of the ciliary body. CELL INSIGHT 2024; 3:100162. [PMID: 38595769 PMCID: PMC11002873 DOI: 10.1016/j.cellin.2024.100162] [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: 12/27/2023] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 04/11/2024]
Abstract
The ciliary body, located at the junction of the choroid and iris, is crucial in the development of the embryonic eye. Notch2 signalling, Wnt signalling, transforming growth factor β (TGF-β) signalling, and Pax6 signalling are critical for coordinating the ciliary body formation. These signalling pathways are coordinated with each other and participate in the ciliary body development, ensuring the precise formation and optimal functioning of the eye structure. Although rare, ciliary body hypoplasia, ciliary tumours, and genetic-related iritis indicate the intricate nature of ciliary body development. Given the ciliary body's important biological significance and potential medical relevance, we aim to provide a comprehensive overview of the developmental molecular mechanisms governing ciliary body formation and function. Here, we focus on the intricate signalling pathways governing ciliary body development and corresponding genetic ciliary diseases.
Collapse
Affiliation(s)
- Baige Li
- Eye Center, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Ting Xie
- Division of Life Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong Special Administrative Region (SAR), China
| | - Scott Nawy
- University of California Berkeley, Department of Molecular and Cell Biology, Berkeley, CA, USA
| | - Yin Shen
- Eye Center, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Frontier Science Center for Immunology and Metabolism, Medical Research Institute, School of Medicine, Wuhan University, Wuhan, Hubei, China
| |
Collapse
|
2
|
Kanwar K, Bashey S, Bohnsack BL, Drackley A, Ing A, Rahmani S, Ranaivo HR, McMullen P, Skol A, Yap K, Allegretti V, Rossen JL. Ocular manifestations of CHARGE syndrome in a pediatric cohort with genotype/phenotype analysis. Am J Med Genet A 2024:e63618. [PMID: 38597178 DOI: 10.1002/ajmg.a.63618] [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: 02/03/2024] [Revised: 03/12/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024]
Abstract
CHARGE syndrome is a rare multi-system condition associated with CHD7 variants. However, ocular manifestations and particularly ophthalmic genotype-phenotype associations, are not well-studied. This study evaluated ocular manifestations and genotype-phenotype associations in pediatric patients with CHARGE syndrome. A retrospective chart review included pediatric patients under 20 years-old with clinical diagnosis of CHARGE syndrome and documented ophthalmic examination. Demographics, genetic testing, and ocular findings were collected. Comprehensive literature review enhanced the genotype-phenotype analysis. Forty-two patients (20 male) underwent eye examination at an average age of 9.45 ± 6.52 years-old. Thirty-nine (93%) had ophthalmic manifestations in at least one eye. Optic nerve/chorioretinal colobomas were most common (38 patients), followed by microphthalmia (13), cataract (6), and iris colobomas (4). Extraocular findings included strabismus (32 patients), nasolacrimal duct obstructions (11, 5 with punctal agenesis), and cranial nerve VII palsy (10). Genotype-phenotype analyses (27 patients) showed variability in ocular phenotypes without association to location or variant types. Splicing (10 patients) and frameshift (10) variants were most prevalent. Patients with CHARGE syndrome may present with a myriad of ophthalmic manifestations. There is limited data regarding genotype-phenotype correlations and additional studies are needed.
Collapse
Affiliation(s)
- Kunal Kanwar
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Saffiya Bashey
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Brenda L Bohnsack
- Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Andy Drackley
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Alexander Ing
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Safa Rahmani
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Hantamalala Ralay Ranaivo
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Patrick McMullen
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Andrew Skol
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Kailee Yap
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Valerie Allegretti
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Jennifer L Rossen
- Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| |
Collapse
|
3
|
De Magalhães CG, Cvekl A, Jaeger RG, Yan CYI. Lens Placode Modulates Extracellular Matrix Formation During Early Eye Development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.30.569417. [PMID: 38076974 PMCID: PMC10705410 DOI: 10.1101/2023.11.30.569417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The role extracellular matrix (ECM) in multiple events of morphogenesis has been well described, little is known about its specific role in early eye development. One of the first morphogenic events in lens development is placodal thickening, which converts the presumptive lens ectoderm from cuboidal to pseudostratified epithelium. This process occurs in the anterior pre-placodal ectoderm when the optic vesicle approaches the cephalic ectoderm. Since cells and ECM have a dynamic relationship of interdependence and modulation, we hypothesized that the ECM evolves with cell shape changes during lens placode formation. This study investigates changes in optic ECM including both protein distribution deposition, extracellular gelatinase activity and gene expression patterns during early optic development using chicken and mouse models. In particular, the expression of Timp2 , a metalloprotease inhibitor, corresponds with a decrease in gelatinase activity within the optic ECM. Furthermore, we demonstrate that optic ECM remodeling depends on BMP signaling in the placode. Together, our findings suggest that the lens placode plays an active role in remodeling the optic ECM during early eye development.
Collapse
|
4
|
Xi G, Feng P, Zhang X, Wu S, Zhang J, Wang X, Xiang A, Xu W, Wang N, Zhu W. iPSC-derived cells stimulate ABCG2 + /NES + endogenous trabecular meshwork cell proliferation and tissue regeneration. Cell Prolif 2024:e13611. [PMID: 38356373 DOI: 10.1111/cpr.13611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/22/2024] [Accepted: 01/30/2024] [Indexed: 02/16/2024] Open
Abstract
A major risk factor for glaucoma, the first leading cause of irreversible blindness worldwide, is the decellularisation of the trabecular meshwork (TM) in the conventional outflow pathway. Stem cell-based therapy, particularly the utilisation of induced pluripotent stem cells (iPSCs), presents an enticing potential for tissue regeneration and intraocular pressure (IOP) maintenance in glaucoma. We have previously observed that differentiated iPSCs can stimulate endogenous cell proliferation in the TM, a pivotal factor in TM regeneration and aqueous humour outflow restoration. In this study, we investigated the response of TM cells in vivo after interacting with iPSC-derived cells and identified two subpopulations responsible for this relatively long-term tissue regeneration: ATP Binding Cassette Subfamily G Member 2 (ABCG2)-positive cells and Nestin (NES)-positive cells. We further uncovered that alterations of these responsive cells are linked to ageing and different glaucoma etiologies, suggesting that ABCG2+ subpopulation decellularization could serve as a potential risk factor for TM decellularization in glaucoma. Taken together, our findings illustrated the proliferative subpopulations in the conventional outflow pathway when stimulated with iPSC-derived cells and defined them as TM precursors, which may be applied to develop novel therapeutic approaches for glaucoma.
Collapse
Affiliation(s)
- Gaiping Xi
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Pengchao Feng
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Xiaoyan Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Shen Wu
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing, China
- Beijing Institute of Brain Disorders, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, China
| | - Jingxue Zhang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing, China
- Beijing Institute of Brain Disorders, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, China
| | - Xiangji Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Ailing Xiang
- Qingdao Xikai Biotechnology Co., Ltd, Qingdao, China
| | - Wenhua Xu
- Department of Inspection, Qingdao University, Qingdao, China
| | - Ningli Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing, China
- Beijing Institute of Brain Disorders, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, China
- Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing University of Aeronautics and Astronautics-Capital Medical University, Beijing, China
| | - Wei Zhu
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
- Advanced Innovation Center for Big Data-Based Precision Medicine, Beijing University of Aeronautics and Astronautics-Capital Medical University, Beijing, China
| |
Collapse
|
5
|
Vöcking O, Famulski JK. A temporal single cell transcriptome atlas of zebrafish anterior segment development. Sci Rep 2023; 13:5656. [PMID: 37024546 PMCID: PMC10079958 DOI: 10.1038/s41598-023-32212-4] [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: 11/02/2022] [Accepted: 03/24/2023] [Indexed: 04/08/2023] Open
Abstract
Anterior segment dysgenesis (ASD), resulting in vision impairment, stems from maldevelopment of anterior segment (AS) tissues. Incidence of ASD has been linked to malfunction of periocular mesenchyme cells (POM). POM cells specify into anterior segment mesenchyme (ASM) cells which colonize and produce AS tissues. In this study we uncover ASM developmental trajectories associated with formation of the AS. Using a transgenic line of zebrafish that fluorescently labels the ASM throughout development, Tg[foxc1b:GFP], we isolated GFP+ ASM cells at several developmental timepoints (48-144 hpf) and performed single cell RNA sequencing. Clustering analysis indicates subdifferentiation of ASM as early as 48 hpf and subsequent diversification into corneal epithelium/endothelium/stroma, or annular ligament (AL) lineages. Tracking individual clusters reveals common developmental pathways, up to 72 hpf, for the AL and corneal endothelium/stroma and distinct pathways for corneal epithelium starting at 48 hpf. Spatiotemporal validation of over 80 genes found associated with AS development demonstrates a high degree of conservation with mammalian trabecular meshwork and corneal tissues. In addition, we characterize thirteen novel genes associated with annular ligament and seven with corneal development. Overall, the data provide a molecular verification of the long-standing hypothesis that POM derived ASM give rise to AS tissues and highlight the high degree of conservation between zebrafish and mammals.
Collapse
Affiliation(s)
- Oliver Vöcking
- Department of Biology, University of Kentucky, Lexington, USA
| | - J K Famulski
- Department of Biology, University of Kentucky, Lexington, USA.
| |
Collapse
|
6
|
Wang M, Rücklin M, Poelmann RE, de Mooij CL, Fokkema M, Lamers GEM, de Bakker MAG, Chin E, Bakos LJ, Marone F, Wisse BJ, de Ruiter MC, Cheng S, Nurhidayat L, Vijver MG, Richardson MK. Nanoplastics causes extensive congenital malformations during embryonic development by passively targeting neural crest cells. ENVIRONMENT INTERNATIONAL 2023; 173:107865. [PMID: 36907039 DOI: 10.1016/j.envint.2023.107865] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/30/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Nanomaterials are widespread in the human environment as pollutants, and are being actively developed for use in human medicine. We have investigated how the size and dose of polystyrene nanoparticles affects malformations in chicken embryos, and have characterized the mechanisms by which they interfere with normal development. We find that nanoplastics can cross the embryonic gut wall. When injected into the vitelline vein, nanoplastics become distributed in the circulation to multiple organs. We find that the exposure of embryos to polystyrene nanoparticles produces malformations that are far more serious and extensive than has been previously reported. These malformations include major congenital heart defects that impair cardiac function. We show that the mechanism of toxicity is the selective binding of polystyrene nanoplastics nanoparticles to neural crest cells, leading to the death and impaired migration of those cells. Consistent with our new model, most of the malformations seen in this study are in organs that depend for their normal development on neural crest cells. These results are a matter of concern given the large and growing burden of nanoplastics in the environment. Our findings suggest that nanoplastics may pose a health risk to the developing embryo.
Collapse
Affiliation(s)
- Meiru Wang
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands
| | - Martin Rücklin
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands
| | - Robert E Poelmann
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Department of Cardiology, Leiden University Medical Center, The Netherlands
| | - Carmen L de Mooij
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Marjolein Fokkema
- Institute of Psychology, Methodology and Statistics, Pieter de la Court Building, Wassenaarseweg 52, 2333 AK Leiden, The Netherlands
| | - Gerda E M Lamers
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Merijn A G de Bakker
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Ernest Chin
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Lilla J Bakos
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Federica Marone
- Swiss Light Source, Paul Scherrer Institut, Photon Science Department, Forschungsstrasse 111, CH-5232 Villigen, Switzerland
| | - Bert J Wisse
- Department of Anatomy & Embryology, Leiden University Medical Center, The Netherlands
| | - Marco C de Ruiter
- Department of Anatomy & Embryology, Leiden University Medical Center, The Netherlands
| | - Shixiong Cheng
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands
| | - Luthfi Nurhidayat
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands; Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Martina G Vijver
- Institute of Environmental Sciences, Leiden University (CML), Van Steenis Building, Einsteinweg 2, 2333 CC Leiden, The Netherlands
| | - Michael K Richardson
- Institute of Biology, Leiden University, Sylvius Laboratory, Sylviusweg 72, 2333 BE Leiden, The Netherlands.
| |
Collapse
|
7
|
Ziermann JM. Overview of Head Muscles with Special Emphasis on Extraocular Muscle Development. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2023; 236:57-80. [PMID: 37955771 DOI: 10.1007/978-3-031-38215-4_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
The head is often considered the most complex part of the vertebrate body as many different cell types contribute to a huge variation of structures in a very limited space. Most of these cell types also interact with each other to ensure the proper development of skull, brain, muscles, nerves, connective tissue, and blood vessels. While there are general mechanisms that are true for muscle development all over the body, the head and postcranial muscle development differ from each other. In the head, specific gene regulatory networks underlie the differentiation in subgroups, which include extraocular muscles, muscles of mastication, muscles of facial expression, laryngeal and pharyngeal muscles, as well as cranial nerve innervated neck muscles. Here, I provide an overview of the difference between head and trunk muscle development. This is followed by a short excursion to the cardiopharyngeal field which gives rise to heart and head musculature and a summary of pharyngeal arch muscle development, including interactions between neural crest cells, mesodermal cells, and endodermal signals. Lastly, a more detailed description of the eye development, tissue interactions, and involved genes is provided.
Collapse
|
8
|
Michels K, Bohnsack BL. Ophthalmological Manifestations of Axenfeld-Rieger Syndrome: Current Perspectives. Clin Ophthalmol 2023; 17:819-828. [PMID: 36926528 PMCID: PMC10013571 DOI: 10.2147/opth.s379853] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/23/2023] [Indexed: 03/12/2023] Open
Abstract
Axenfeld-Rieger syndrome (ARS) is a rare congenital disease that is primarily characterized by ocular anterior segment anomalies but is also associated with craniofacial, dental, cardiac, and neurologic abnormalities. Over half of cases are linked with autosomal dominant mutations in either FOXC1 or PITX2, which reflects the molecular role of these genes in regulating neural crest cell contributions to the eye, face, and heart. Within the eye, ARS is classically defined as the combination of posterior embryotoxon with iris bridging strands (Axenfeld anomaly) and iris hypoplasia causing corectopia and pseudopolycoria (Rieger anomaly). Glaucoma due to iridogoniodysgenesis is the main source of morbidity and is typically diagnosed during infancy or childhood in over half of affected individuals. Angle bypass surgery, such as glaucoma drainage devices and trabeculectomies, is often needed to obtain intraocular pressure control. A multi-disciplinary approach including glaucoma specialists and pediatric ophthalmologists produces optimal outcomes as vision is dependent on many factors including glaucoma, refractive error, amblyopia and strabismus. Further, since ophthalmologists often make the diagnosis, it is important to refer patients with ARS to other specialists including dentistry, cardiology, and neurology.
Collapse
Affiliation(s)
- Kristi Michels
- Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Brenda L Bohnsack
- Division of Ophthalmology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| |
Collapse
|
9
|
Cvekl A, Camerino MJ. Generation of Lens Progenitor Cells and Lentoid Bodies from Pluripotent Stem Cells: Novel Tools for Human Lens Development and Ocular Disease Etiology. Cells 2022; 11:cells11213516. [PMID: 36359912 PMCID: PMC9658148 DOI: 10.3390/cells11213516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
In vitro differentiation of human pluripotent stem cells (hPSCs) into specialized tissues and organs represents a powerful approach to gain insight into those cellular and molecular mechanisms regulating human development. Although normal embryonic eye development is a complex process, generation of ocular organoids and specific ocular tissues from pluripotent stem cells has provided invaluable insights into the formation of lineage-committed progenitor cell populations, signal transduction pathways, and self-organization principles. This review provides a comprehensive summary of recent advances in generation of adenohypophyseal, olfactory, and lens placodes, lens progenitor cells and three-dimensional (3D) primitive lenses, "lentoid bodies", and "micro-lenses". These cells are produced alone or "community-grown" with other ocular tissues. Lentoid bodies/micro-lenses generated from human patients carrying mutations in crystallin genes demonstrate proof-of-principle that these cells are suitable for mechanistic studies of cataractogenesis. Taken together, current and emerging advanced in vitro differentiation methods pave the road to understand molecular mechanisms of cataract formation caused by the entire spectrum of mutations in DNA-binding regulatory genes, such as PAX6, SOX2, FOXE3, MAF, PITX3, and HSF4, individual crystallins, and other genes such as BFSP1, BFSP2, EPHA2, GJA3, GJA8, LIM2, MIP, and TDRD7 represented in human cataract patients.
Collapse
Affiliation(s)
- Aleš Cvekl
- Departments Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Correspondence: ; Tel.: +1-718-430-3217; Fax: +1-718-430-8778
| | - Michael John Camerino
- Departments Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| |
Collapse
|
10
|
Advances in Understanding the Pathogenesis of Craniofacial Birth Defects. J Dev Biol 2022; 10:jdb10030027. [PMID: 35893122 PMCID: PMC9326658 DOI: 10.3390/jdb10030027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023] Open
|
11
|
Animal Model Contributions to Primary Congenital Glaucoma. J Ophthalmol 2022; 2022:6955461. [PMID: 35663518 PMCID: PMC9162845 DOI: 10.1155/2022/6955461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022] Open
Abstract
Primary congenital glaucoma (PCG) is an ocular disease characterized by congenital anterior segmental maldevelopment with progressive optic nerve degeneration. Certain genes, such as cytochrome P450 family 1 subfamily B member 1 and latent TGF-β-binding protein 2, are involved in the pathogenesis of PCG, but the exact pathogenic mechanism has not yet been fully elucidated. There is an urgent need to determine the etiology and pathophysiology of PCG and develop new therapeutic methods to stop disease progression. Animal models can simulate PCG and are essential to study the pathogenesis and treatment of PCG. Various animal species have been used in the study of PCG, including rabbits, rats, mice, cats, zebrafish, and quails. These models are formed spontaneously or by combining with genetic engineering technology. The focus of the present study is to review the characteristics and potential applications of animal models in PCG and provide new approaches to understand the mechanism and develop new treatment strategies for patients with PCG.
Collapse
|
12
|
Kylat RI. Peter's anomaly-A homeotic gene disorder. Acta Paediatr 2022; 111:948-951. [PMID: 35044009 DOI: 10.1111/apa.16260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/04/2021] [Accepted: 01/17/2022] [Indexed: 02/03/2023]
Abstract
Peter's anomaly is a rare form of congenital anterior segment dysgenesis of the eye. Varying degrees of central corneal opacity and lenticulo-corneal or irido-corneal synechiae are the key hallmarks. The association of Peter's anomaly along with short stature, rhizomelia, broad short hands or brachydactyly, with facial dysmorphism, cleft lip, cleft palate, genitourinary and cardiovascular anomalies is a distinct and is often termed Peter's plus syndrome. Early detection is imperative to prevent sensory deprivation amblyopia. Glaucoma can be present at initial diagnosis or at any stage later, but treatment can be difficult. For the dense leukoma, corneal graft may be needed but visual prognosis is poor. Research focussing on gene editing and regenerative medicine using native corneal endothelial cells is ongoing.
Collapse
Affiliation(s)
- Ranjit I. Kylat
- Department of Pediatrics College of Medicine University of Arizona Tucson Arizona USA
- Banner University Hospital Tucson Arizona USA
| |
Collapse
|
13
|
Mechanosignaling in vertebrate development. Dev Biol 2022; 488:54-67. [DOI: 10.1016/j.ydbio.2022.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/06/2022] [Accepted: 05/07/2022] [Indexed: 12/13/2022]
|
14
|
Chesneau B, Aubert-Mucca M, Fremont F, Pechmeja J, Soler V, Isidor B, Nizon M, Dollfus H, Kaplan J, Fares-Taie L, Rozet JM, Busa T, Lacombe D, Naudion S, Amiel J, Rio M, Attie-Bitach T, Lesage C, Thouvenin D, Odent S, Morel G, Vincent-Delorme C, Boute O, Vanlerberghe C, Dieux A, Boussion S, Faivre L, Pinson L, Laffargue F, Le Guyader G, Le Meur G, Prieur F, Lambert V, Laudier B, Cottereau E, Ayuso C, Corton-Pérez M, Bouneau L, Le Caignec C, Gaston V, Jeanton-Scaramouche C, Dupin-Deguine D, Calvas P, Chassaing N, Plaisancié J. First evidence of SOX2 mutations in Peters' anomaly: lessons from molecular screening of 95 patients. Clin Genet 2022; 101:494-506. [PMID: 35170016 DOI: 10.1111/cge.14123] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 11/30/2022]
Abstract
Peters' anomaly (PA) is a rare anterior segment dysgenesis characterized by central corneal opacity and irido-lenticulo-corneal adhesions. Several genes are involved in syndromic or isolated PA (B3GLCT, PAX6, PITX3, FOXE3, CYP1B1). Some Copy Number Variations (CNVs) have also been occasionally reported. Despite this genetic heterogeneity, most of patients remain without genetic diagnosis. We retrieved a cohort of 95 individuals with PA and performed genotyping using a combination of Comparative genomic hybridization, whole genome, exome and targeted sequencing of 119 genes associated with ocular development anomalies. Causative genetic defects involving 12 genes and CNVs were identified for 1/3 of patients. Unsurprisingly, B3GLCT and PAX6 were the most frequently implicated genes, respectively in syndromic and isolated PA. Unexpectedly, the third gene involved in our cohort was SOX2, the major gene of micro-anophthalmia. Four unrelated patients with PA (isolated or with microphthalmia) were carrying pathogenic variants in this gene that was never associated with PA before. Here we described the largest cohort of PA patients ever reported. The genetic bases of PA are still to be explored as genetic diagnosis was unavailable for 2/3 of patients. Nevertheless, we showed here for the first time the involvement of SOX2 in PA, offering new evidence for its role in corneal transparency and anterior segment development. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Bertrand Chesneau
- Génétique Médicale, Hôpital Purpan, CHU, Toulouse, France.,Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France
| | | | - Félix Fremont
- Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France.,Service d'ophtalmologie, Hôpital Purpan, CHU Toulouse, France
| | - Jacmine Pechmeja
- Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France.,Service d'ophtalmologie, Hôpital Purpan, CHU Toulouse, France
| | - Vincent Soler
- Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France.,Service d'ophtalmologie, Hôpital Purpan, CHU Toulouse, France
| | - Bertrand Isidor
- Génétique Médicale, Institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Mathilde Nizon
- Génétique Médicale, Institut du thorax, INSERM, CNRS, UNIV Nantes, Nantes, France
| | - Hélène Dollfus
- Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), Hôpitaux Universitaires, Strasbourg, France
| | - Josseline Kaplan
- Laboratoire de Génétique Ophtalmologique, INSERM U1163, Institut Imagine, Paris, France
| | - Lucas Fares-Taie
- Laboratoire de Génétique Ophtalmologique, INSERM U1163, Institut Imagine, Paris, France
| | - Jean-Michel Rozet
- Laboratoire de Génétique Ophtalmologique, INSERM U1163, Institut Imagine, Paris, France
| | - Tiffany Busa
- Génétique Clinique, AP- HM CHU Timone Enfants, Marseille, France
| | - Didier Lacombe
- Département de Génétique Médicale, CHU Bordeaux, Bordeaux, France
| | - Sophie Naudion
- Département de Génétique Médicale, CHU Bordeaux, Bordeaux, France
| | - Jeanne Amiel
- Service de Génétique Médicale, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Marlène Rio
- Service de Génétique Médicale, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Tania Attie-Bitach
- Service d'Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, AP-, HP, Paris, France
| | | | | | - Sylvie Odent
- Service de Génétique Clinique, Centre Labellisé pour les Anomalies du Développement Ouest, CHU Rennes; Institut de Génétique et Développement de Rennes, CNRS, UMR 6290, Université de Rennes, ERN ITHACA, France
| | - Godelieve Morel
- Service de Génétique Clinique, Centre Labellisé pour les Anomalies du Développement Ouest, CHU Rennes; Institut de Génétique et Développement de Rennes, CNRS, UMR 6290, Université de Rennes, ERN ITHACA, France
| | | | | | | | | | | | - Laurence Faivre
- Centre de Référence Anomalies du Développement et Syndromes Malformatifs, FHU TRANSLAD, CHU, Dijon, France
| | - Lucile Pinson
- Département de Génétique Médicale, Maladies Rares et Médecine Personnalisée, CHU de Montpellier, France
| | | | | | | | | | - Victor Lambert
- Service d'ophtalmologie, Hôpital Nord, Saint-Etienne, France
| | | | | | - Carmen Ayuso
- Genetics & Genomics Department, Jiménez Díaz University Hospital-Universidad Autónoma de Madrid (IIS-FJD-UAM). Centre for Biomedical Network Research on Rare Diseases (CIBERER), Madrid, Spain
| | - Marta Corton-Pérez
- Genetics & Genomics Department, Jiménez Díaz University Hospital-Universidad Autónoma de Madrid (IIS-FJD-UAM). Centre for Biomedical Network Research on Rare Diseases (CIBERER), Madrid, Spain
| | | | | | | | | | | | - Patrick Calvas
- Génétique Médicale, Hôpital Purpan, CHU, Toulouse, France.,Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France
| | - Nicolas Chassaing
- Génétique Médicale, Hôpital Purpan, CHU, Toulouse, France.,Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France
| | - Julie Plaisancié
- Génétique Médicale, Hôpital Purpan, CHU, Toulouse, France.,Centre de Référence pour les Affections Rares en Génétique Ophtalmologique (CARGO), CHU, Toulouse, France.,INSERM U1214, ToNIC, Université Toulouse III, France
| |
Collapse
|
15
|
Selzer EB, Blain D, Hufnagel RB, Lupo PJ, Mitchell LE, Brooks BP. Review of Evidence for Environmental Causes of Uveal Coloboma. Surv Ophthalmol 2021; 67:1031-1047. [PMID: 34979194 DOI: 10.1016/j.survophthal.2021.12.008] [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: 04/19/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 10/19/2022]
Abstract
Uveal coloboma is a condition defined by missing ocular tissues and is a significant cause of childhood blindness. It occurs from a failure of the optic fissure to close during embryonic development,and may lead to missing parts of the iris, ciliary body, retina, choroid, and optic nerve. Because there is no treatment for coloboma, efforts have focused on prevention. While several genetic causes of coloboma have been identified, little definitive research exists regarding the environmental causes of this condition. We review the current literature on environmental factors associated with coloboma in an effort to guide future research and preventative counseling related to this condition.
Collapse
Affiliation(s)
- Evan B Selzer
- Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Delphine Blain
- Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Robert B Hufnagel
- Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD
| | - Philip J Lupo
- Department of Pediatrics, Section of Hematology-Oncology, Baylor College of Medicine, Houston, TX
| | - Laura E Mitchell
- Department of Epidemiology, Human Genetics and Environmental Sciences, UTHealth School of Public Health, Houston, TX
| | - Brian P Brooks
- Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, MD.
| |
Collapse
|
16
|
Wang J, Rattner A, Nathans J. A transcriptome atlas of the mouse iris at single-cell resolution defines cell types and the genomic response to pupil dilation. eLife 2021; 10:e73477. [PMID: 34783308 PMCID: PMC8594943 DOI: 10.7554/elife.73477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/25/2021] [Indexed: 01/02/2023] Open
Abstract
The iris controls the level of retinal illumination by controlling pupil diameter. It is a site of diverse ophthalmologic diseases and it is a potential source of cells for ocular auto-transplantation. The present study provides foundational data on the mouse iris based on single nucleus RNA sequencing. More specifically, this work has (1) defined all of the major cell types in the mouse iris and ciliary body, (2) led to the discovery of two types of iris stromal cells and two types of iris sphincter cells, (3) revealed the differences in cell type-specific transcriptomes in the resting vs. dilated states, and (4) identified and validated antibody and in situ hybridization probes that can be used to visualize the major iris cell types. By immunostaining for specific iris cell types, we have observed and quantified distortions in nuclear morphology associated with iris dilation and clarified the neural crest contribution to the iris by showing that Wnt1-Cre-expressing progenitors contribute to nearly all iris cell types, whereas Sox10-Cre-expressing progenitors contribute only to stromal cells. This work should be useful as a point of reference for investigations of iris development, disease, and pharmacology, for the isolation and propagation of defined iris cell types, and for iris cell engineering and transplantation.
Collapse
Affiliation(s)
- Jie Wang
- Department of Molecular Biology and Genetics, Johns Hopkins University School of MedicineBaltimoreUnited States
- Howard Hughes Medical Institute, Johns Hopkins University School of MedicineBaltimoreUnited States
| | - Amir Rattner
- Department of Molecular Biology and Genetics, Johns Hopkins University School of MedicineBaltimoreUnited States
| | - Jeremy Nathans
- Department of Molecular Biology and Genetics, Johns Hopkins University School of MedicineBaltimoreUnited States
- Howard Hughes Medical Institute, Johns Hopkins University School of MedicineBaltimoreUnited States
- Department of Neuroscience, Johns Hopkins University School of MedicineBaltimoreUnited States
- Department of Ophthalmology, Johns Hopkins University School of MedicineBaltimoreUnited States
| |
Collapse
|
17
|
De Decker M, Cassiman C, Casteels I, Devriendt K, Delbeke P. Extraocular muscle hypoplasia associated with Axenfeld-Rieger syndrome. Strabismus 2021; 29:216-220. [PMID: 34709103 DOI: 10.1080/09273972.2021.1987926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We describe a four-year-old girl with bilateral severe iris hypoplasia and secondary ocular hypertension. Genetic testing revealed a de novo deletion in the FOXC1 gene, establishing the diagnosis of Axenfeld-Rieger syndrome (ARS). The girl developed a gradually increasing exotropia, up to 95 prism diopters by the age of 3 years wherefore strabismus surgery was performed. Intra-operatively, only very rudimentary developed medial and lateral rectus muscles were found. This is the first observation of pronounced hypoplasia of both medial and lateral rectus muscles associated with ARS.
Collapse
Affiliation(s)
- Milo De Decker
- Department of Ophthalmology, University Hospitals Leuven, Leuven
| | | | - Ingele Casteels
- Department of Ophthalmology, University Hospitals Leuven, Leuven
| | | | | |
Collapse
|
18
|
A Fetus with Congenital Microcephaly, Microphthalmia and Cataract Was Detected with Biallelic Variants in the OCLN Gene: A Case Report. Diagnostics (Basel) 2021; 11:diagnostics11091576. [PMID: 34573918 PMCID: PMC8472215 DOI: 10.3390/diagnostics11091576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/18/2021] [Accepted: 08/25/2021] [Indexed: 11/17/2022] Open
Abstract
Microcephaly and microphthalmia are both rare congenital abnormalities, while concurrently, these two are even rarer. The underlying etiology would be complex interplaying between heterogeneous genetic background and the environmental pathogens, particularly during critical periods of early tissue development. Here, we reported a prenatal case with microcephaly, microphthalmia, and bilateral cataracts detected by ultrasonography and confirmed by autopsy. Various routine infection-related tests and invasive genetic testing were negative. Whole genome sequencing of fetus and parents revealed OCLN gene defects may be associated with these multiple congenital abnormalities.
Collapse
|