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Kim AH, Sakin I, Viviano S, Tuncel G, Aguilera SM, Goles G, Jeffries L, Ji W, Lakhani SA, Kose CC, Silan F, Oner SS, Kaplan OI, Ergoren MC, Mishra-Gorur K, Gunel M, Sag SO, Temel SG, Deniz E. CC2D1A causes ciliopathy, intellectual disability, heterotaxy, renal dysplasia, and abnormal CSF flow. Life Sci Alliance 2024; 7:e202402708. [PMID: 39168639 PMCID: PMC11339347 DOI: 10.26508/lsa.202402708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 07/29/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024] Open
Abstract
Intellectual and developmental disabilities result from abnormal nervous system development. Over a 1,000 genes have been associated with intellectual and developmental disabilities, driving continued efforts toward dissecting variant functionality to enhance our understanding of the disease mechanism. This report identified two novel variants in CC2D1A in a cohort of four patients from two unrelated families. We used multiple model systems for functional analysis, including Xenopus, Drosophila, and patient-derived fibroblasts. Our experiments revealed that cc2d1a is expressed explicitly in a spectrum of ciliated tissues, including the left-right organizer, epidermis, pronephric duct, nephrostomes, and ventricular zone of the brain. In line with this expression pattern, loss of cc2d1a led to cardiac heterotaxy, cystic kidneys, and abnormal CSF circulation via defective ciliogenesis. Interestingly, when we analyzed brain development, mutant tadpoles showed abnormal CSF circulation only in the midbrain region, suggesting abnormal local CSF flow. Furthermore, our analysis of the patient-derived fibroblasts confirmed defective ciliogenesis, further supporting our observations. In summary, we revealed novel insight into the role of CC2D1A by establishing its new critical role in ciliogenesis and CSF circulation.
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Affiliation(s)
- Angelina Haesoo Kim
- https://ror.org/03pnmqc26 Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Irmak Sakin
- Department of ENT, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Acibadem University School of Medicine, Istanbul, Turkey
| | - Stephen Viviano
- https://ror.org/03pnmqc26 Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
| | - Gulten Tuncel
- https://ror.org/02x8svs93 DESAM Research Institute, Near East University, Nicosia, Cyprus
| | | | - Gizem Goles
- Department of Neurosurgery, Yale University School of Medicine, New Haven, CT, USA
| | - Lauren Jeffries
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
| | - Weizhen Ji
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
| | - Saquib A Lakhani
- https://ror.org/03pnmqc26 Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
| | - Canan Ceylan Kose
- Canakkale 18 March University, Faculty of Medicine, Department of Medical Genetics, Canakkale, Turkey
| | - Fatma Silan
- Canakkale 18 March University, Faculty of Medicine, Department of Medical Genetics, Canakkale, Turkey
| | - Sukru Sadik Oner
- Department of Pharmacology, Goztepe Prof. Dr. Suleyman Yalcin City Hospital, Istanbul, Turkey
- Istanbul Medeniyet University, Science and Advanced Technologies Research Center (BILTAM), Istanbul, Turkey
| | - Oktay I Kaplan
- Rare Disease Laboratory, School of Life and Natural Sciences, Abdullah Gul University, Kayseri, Turkey
| | - Mahmut Cerkez Ergoren
- https://ror.org/02x8svs93 Department of Medical Genetics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | - Ketu Mishra-Gorur
- https://ror.org/03pnmqc26 Department of Neurosurgery, Yale School of Medicine, New Haven, CT, USA
| | - Murat Gunel
- https://ror.org/03pnmqc26 Department of Neurosurgery, Yale School of Medicine, New Haven, CT, USA
- Department of Genetics, Yale University School of Medicine, New Haven, CT, USA
- Yale Program in Brain Tumor Research, Yale University School of Medicine, New Haven, CT, USA
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT, USA
| | - Sebnem Ozemri Sag
- Department of Medical Genetics, Faculty of Medicine, Uludag University, Bursa, Turkey
| | - Sehime G Temel
- Department of Medical Genetics, Faculty of Medicine, Uludag University, Bursa, Turkey
- Department of Histology and Embryology and Health Sciences Institute, Department of Translational Medicine, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey
| | - Engin Deniz
- https://ror.org/03pnmqc26 Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT, USA
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Huang BK, Gamm UA, Bhandari V, Khokha MK, Choma MA. Three-dimensional, three-vector-component velocimetry of cilia-driven fluid flow using correlation-based approaches in optical coherence tomography. BIOMEDICAL OPTICS EXPRESS 2015; 6:3515-38. [PMID: 26417520 PMCID: PMC4574676 DOI: 10.1364/boe.6.003515] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/02/2015] [Accepted: 08/07/2015] [Indexed: 05/21/2023]
Abstract
Microscale quantification of cilia-driven fluid flow is an emerging area in medical physiology, including pulmonary and central nervous system physiology. Cilia-driven fluid flow is most completely described by a three-dimensional, three-component (3D3C) vector field. Here, we generate 3D3C velocimetry measurements by synthesizing higher dimensional data from lower dimensional measurements obtained using two separate optical coherence tomography (OCT)-based approaches: digital particle image velocimetry (DPIV) and dynamic light scattering (DLS)-OCT. Building on previous work, we first demonstrate directional DLS-OCT for 1D2C velocimetry measurements in the sub-1 mm/s regime (sub-2.5 inch/minute regime) of cilia-driven fluid flow in Xenopus epithelium, an important animal model of the ciliated respiratory tract. We then extend our analysis toward 3D3C measurements in Xenopus using both DLS-OCT and DPIV. We demonstrate the use of DPIV-based approaches towards flow imaging of Xenopus cerebrospinal fluid and mouse trachea, two other important ciliary systems. Both of these flows typically fall in the sub-100 μm/s regime (sub-0.25 inch/minute regime). Lastly, we develop a framework for optimizing the signal-to-noise ratio of 3D3C flow velocity measurements synthesized from 2D2C measures in non-orthogonal planes. In all, 3D3C OCT-based velocimetry has the potential to comprehensively characterize the flow performance of biological ciliated surfaces.
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Affiliation(s)
- Brendan K. Huang
- Department of Biomedical Engineering, Yale University, 55 Prospect St., New Haven, Connecticut 06520,
USA
| | - Ute A. Gamm
- Department of Diagnostic Radiology, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
| | - Vineet Bhandari
- Department of Pediatrics, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
- Current affiliations: Drexel University College of Medicine, Philadelphia, PA, 19129,
USA
- St. Christopher’s Hospital for Children, Philadelphia, PA, 19134,
USA
| | - Mustafa K. Khokha
- Department of Pediatrics, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
- Department of Genetics, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
| | - Michael A. Choma
- Department of Biomedical Engineering, Yale University, 55 Prospect St., New Haven, Connecticut 06520,
USA
- Department of Diagnostic Radiology, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
- Department of Pediatrics, Yale University, 333 Cedar St., New Haven, Connecticut 06510,
USA
- Department of Applied Physics, PO Box 208267, Yale University, New Haven, Connecticut 06520,
USA
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