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Yousaf K, Naz S, Mushtaq A, Wohler E, Sobreira N, Ho BM, Chen LJ, Chu WK, Bashir R. Exome Sequencing Reveals SLC4A11 Variant Underlying Congenital Hereditary Endothelial Dystrophy (CHED2) Misdiagnosed as Congenital Glaucoma. Genes (Basel) 2023; 14:genes14020310. [PMID: 36833236 PMCID: PMC9956413 DOI: 10.3390/genes14020310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/02/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
Autosomal recessive congenital hereditary endothelial dystrophy (CHED2) may be misdiagnosed as primary congenital glaucoma (PCG) due to similar clinical phenotypes during early infancy. In this study, we identified a family with CHED2, which was previously misdiagnosed as having PCG, and followed up for 9 years. Linkage analysis was first completed in eight PCG-affected families, followed by whole-exome sequencing (WES) in family PKGM3. The following in silico tools were used to predict the pathogenic effects of identified variants: I-Mutant 2.0, SIFT, Polyphen-2, PROVEAN, mutation taster and PhD-SNP. After detecting an SLC4A11 variant in one family, detailed ophthalmic examinations were performed again to confirm the diagnosis. Six out of eight families had CYP1B1 gene variants responsible for PCG. However, in family PKGM3, no variants in the known PCG genes were identified. WES identified a homozygous missense variant c.2024A>C, p.(Glu675Ala) in SLC4A11. Based on the WES findings, the affected individuals underwent detailed ophthalmic examinations and were re-diagnosed with CHED2 leading to secondary glaucoma. Our results expand the genetic spectrum of CHED2. This is the first report from Pakistan of a Glu675Ala variant with CHED2 leading to secondary glaucoma. The p.Glu675Ala variant is likely a founder mutation in the Pakistani population. Our findings suggest that genome-wide neonatal screening is worthwhile to avoid the misdiagnosis of phenotypically similar diseases such as CHED2 and PCG.
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Affiliation(s)
- Khazeema Yousaf
- Department of Biotechnology, Lahore College for Women University, Lahore 54000, Pakistan
| | - Sadaf Naz
- School of Biological Sciences, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Asma Mushtaq
- Department of Ophthalmology, Children’s Hospital & the Institute of Child Health, Lahore 54000, Pakistan
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Elizabeth Wohler
- McKusick-Nathans Department of Genetic Medicine, Baylor Hopkins Center for Mendelian Genomics, Baltimore, MD 21205, USA
| | - Nara Sobreira
- McKusick-Nathans Department of Genetic Medicine, Baylor Hopkins Center for Mendelian Genomics, Baltimore, MD 21205, USA
| | - Bo-Man Ho
- McKusick-Nathans Department of Genetic Medicine, Baylor Hopkins Center for Mendelian Genomics, Baltimore, MD 21205, USA
| | - Li-Jia Chen
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong 999077, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Wai-Kit Chu
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Hong Kong 999077, China
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong 999077, China
- Correspondence: (W.-K.C.); (R.B.)
| | - Rasheeda Bashir
- Department of Biotechnology, Lahore College for Women University, Lahore 54000, Pakistan
- Correspondence: (W.-K.C.); (R.B.)
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Acri G, Micali A, D’Angelo R, Puzzolo D, Aragona P, Testagrossa B, Aragona E, Wylegala E, Nowinska A. Raman Spectroscopic Study of Amyloid Deposits in Gelatinous Drop-like Corneal Dystrophy. J Clin Med 2022; 11:jcm11051403. [PMID: 35268494 PMCID: PMC8911144 DOI: 10.3390/jcm11051403] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/12/2022] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
The genetic and histopathological features of the cornea of a Polish patient with Gelatinous Drop-like Corneal Dystrophy (GDCD) and the molecular composition with Raman spectroscopy of corneal deposits were examined. A 62 year-old Polish woman was diagnosed with GDCD and underwent penetrating corneal transplant. A blood sample was collected, and genetic analysis was performed. The cornea was processed for light microscopy and Raman analysis. The genetic exam revealed a previously undescribed homozygous 1-base pair deletion in exon 1 of TACSTD2 gene (c.185delT), resulting in a frame shift causing a premature stop codon. When compared with a control cornea, in GDCD cornea stained with PAS evident deposits were present over the anterior stroma, with apple green birefringence under polarized light. Raman spectroscopy showed peculiar differences between normal and GDCD cornea, consisting in peaks either of different height or undetectable in the normal cornea and related to amyloid. The possible causative role of the novel mutation was discussed and Raman spectroscopy as a further morphological tool in the evaluation of corneal dystrophies, characterized by the deposition of abnormal materials, was suggested.
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Affiliation(s)
- Giuseppe Acri
- Department of Biomedical Sciences, Section of Physics, University of Messina, 98125 Messina, Italy; (G.A.); (B.T.)
| | - Antonio Micali
- Department of Adult and Pediatric Pathology, University of Messina, 98125 Messina, Italy
- Correspondence: ; Tel.: +39-90-2213630
| | - Rosalia D’Angelo
- Department of Biomedical Sciences, Section of Biology and Genetics, University of Messina, 98125 Messina, Italy;
| | - Domenico Puzzolo
- Department of Biomedical Sciences, Section of Histology and Embryology, University of Messina, 98125 Messina, Italy;
| | - Pasquale Aragona
- Department of Biomedical Sciences, Eye Clinic, Regional Referral Center for the Ocular Surface Diseases, University of Messina, 98125 Messina, Italy;
| | - Barbara Testagrossa
- Department of Biomedical Sciences, Section of Physics, University of Messina, 98125 Messina, Italy; (G.A.); (B.T.)
| | - Emanuela Aragona
- Department of Ophthalmology, Scientific Institute San Raffaele, Vita-Salute University, 20132 Milan, Italy;
| | - Edward Wylegala
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-555 Katowice, Poland; (E.W.); (A.N.)
- Ophthalmology Department, Railway Hospital, 40-760 Katowice, Poland
| | - Anna Nowinska
- Chair and Clinical Department of Ophthalmology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-555 Katowice, Poland; (E.W.); (A.N.)
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Chau VQ, Hu J, Gong X, Hulleman JD, Ufret-Vincenty RL, Rigo F, Prakash TP, Corey DR, Mootha VV. Delivery of Antisense Oligonucleotides to the Cornea. Nucleic Acid Ther 2020; 30:207-214. [PMID: 32202944 DOI: 10.1089/nat.2019.0838] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Antisense oligonucleotides (ASOs) are synthetic nucleic acids that recognize complementary RNA sequences inside cells and modulate gene expression. In this study, we explore the feasibility of ASO delivery to the cornea. We used quantitative polymerase chain reaction to test the efficacy of a benchmark ASO targeting a noncoding nuclear RNA, Metastasis-Associated Lung Adenocarcinoma Transcript 1 (MALAT1), in a human corneal endothelial cell line, ex vivo human corneas, and in vivo in mice. In vivo delivery was via intravitreal or intracameral injections as well as topical administration. The anti-MALAT1 ASO significantly reduced expression of MALAT1 in a corneal endothelial cell line. We achieved a dose-dependent reduction of target gene expression in endothelial tissue from ex vivo human donor corneas. In vivo mouse experiments confirmed MALAT1 reduction in whole corneal tissue via intravitreal and intracameral routes, 82% and 71% knockdown, respectively (P < 0.001). Effects persisted up to at least 21 days, 32% (P < 0.05) and 43% (P < 0.05) knockdown, respectively. We developed protocols for the isolation and analysis of mouse corneal endothelium and observed reduction in MALAT1 expression upon both intravitreal and intracameral administrations, 64% (P < 0.05) and 63% (P < 0.05) knockdown, respectively. These data open the possibility of using ASOs to treat corneal disease.
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Affiliation(s)
- Viet Q Chau
- Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Jiaxin Hu
- Department of Pharmacology and Biochemistry, and UT Southwestern Medical Center, Dallas, Texas, USA
| | - Xin Gong
- Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - John D Hulleman
- Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas, USA
| | | | - Frank Rigo
- Ionis Pharmaceuticals, Carlsbad, California, USA
| | | | - David R Corey
- Department of Pharmacology and Biochemistry, and UT Southwestern Medical Center, Dallas, Texas, USA
| | - V Vinod Mootha
- Department of Ophthalmology, UT Southwestern Medical Center, Dallas, Texas, USA.,McDermott Center for Human Growth and Development, UT Southwestern Medical Center, Dallas, Texas, USA
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Song Y, Sun M, Wang N, Zhou X, Zhao J, Wang Q, Chen S, Deng Y, Qiu L, Chen Y, Aldave AJ, Zhang F. Prevalence of transforming growth factor β-induced gene corneal dystrophies in Chinese refractive surgery candidates. J Cataract Refract Surg 2017; 43:1489-1494. [PMID: 29233738 DOI: 10.1016/j.jcrs.2017.07.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 02/05/2023]
Abstract
PURPOSE To determine the prevalence of the transforming growth factor (TGF) β-induced gene corneal dystrophies in refractive surgery candidates in China. SETTING Five hospitals in China. DESIGN Prospective case series. METHOD Refractive surgical candidates from 5 preselected eye hospitals/centers in China were recruited after providing informed consent. All patients had slitlamp biomicroscopy and collection of a buccal swab as a source of DNA for screening of the TGF β-induced gene for the 5 most common mutations associated with Reis-Bückler corneal dystrophy, Thiel-Behnke corneal dystrophy, granular corneal dystrophy type 1, granular corneal dystrophy type 2, and lattice corneal dystrophy type 1. RESULTS Of the 2068 refractive surgery candidates analyzed, 4 had corneal opacities in both eyes on slitlamp examination. Screening for the TGF β-induced gene found the heterozygous p.R124H mutation associated with granular corneal dystrophy type 2 in each of the 4 individuals with corneal opacities as well as in a fifth individual who did not have any corneal opacities, for a prevalence of 0.24%. Exacerbation of dystrophic corneal deposition developed after laser refractive surgery in 2 individuals who did not have preoperative TGF β-induced gene screening. CONCLUSIONS The prevalence of the TGF β-induced gene corneal dystrophies in Chinese refractive surgery candidates was estimated to be approximately 0.24%. Genetic testing is recommended to identify and exclude from candidacy all individuals with a TGF β-induced gene dystrophy before elective keratorefractive surgery to avoid causing accelerated postoperative dystrophic deposition.
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Affiliation(s)
- Yanzheng Song
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Mingshen Sun
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Ningli Wang
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Xingtao Zhou
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Jing Zhao
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Qinmei Wang
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Shihao Chen
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Yingping Deng
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Lemei Qiu
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Yueguo Chen
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Anthony J Aldave
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA
| | - Fengju Zhang
- From the Beijing Tongren Eye Center (Song, Sun, N. Wang, Zhang), Beijing Tongren Hospital, Capital Medical University and Beijing Ophthalmology & Visual Sciences Key Laboratory, the Peking University Third Hospital (Y. Chen), Beijing, Key Laboratory of Myopia, Ministry of Health, Department of Ophthalmology (Zhou, Zhao), the Eye and ENT Hospital of Fudan University, Shanghai, the Eye Hospital of Wenzhou Medical University (Q. Wang, S. Chen), Wenzhou, the West China Hospital of Sichuan University (Deng, Qiu), Chengdu, China; the Stein Eye Institute (Aldave), University of California Los Angeles Medical Center, Los Angeles, California, USA.
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