1
|
Robinson K, Curtis SW, Leslie EJ. The heterogeneous genetic architectures of orofacial clefts. Trends Genet 2024; 40:410-421. [PMID: 38480105 DOI: 10.1016/j.tig.2024.02.004] [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: 11/20/2023] [Revised: 02/13/2024] [Accepted: 02/13/2024] [Indexed: 05/09/2024]
Abstract
Orofacial clefts (OFCs) are common, affecting 1:1000 live births. OFCs occur across a phenotypic spectrum - including cleft lip (CL), cleft lip and palate (CLP), or cleft palate (CP) - and can be further subdivided based on laterality, severity, or specific structures affected. Herein we review what is known about the genetic architecture underlying each of these subtypes, considering both shared and subtype-specific risks. While there are more known genetic similarities between CL and CLP than CP, recent research supports both shared and subtype-specific genetic risk factors within and between phenotypic classifications of OFCs. Larger sample sizes and deeper phenotyping data will be of increasing importance for the discovery of novel genetic risk factors for OFCs and various subtypes going forward.
Collapse
Affiliation(s)
- Kelsey Robinson
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Sarah W Curtis
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Elizabeth J Leslie
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA.
| |
Collapse
|
2
|
Alade A, Peter T, Busch T, Awotoye W, Anand D, Abimbola O, Aladenika E, Olujitan M, Rysavy O, Nguyen PF, Naicker T, Mossey PA, Gowans LJJ, Eshete MA, Adeyemo WL, Zeng E, Van Otterloo E, O'Rorke M, Adeyemo A, Murray JC, Lachke SA, Romitti PA, Butali A. Shared genetic risk between major orofacial cleft phenotypes in an African population. Genet Epidemiol 2024. [PMID: 38634654 DOI: 10.1002/gepi.22564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 02/22/2024] [Accepted: 03/27/2024] [Indexed: 04/19/2024]
Abstract
Nonsyndromic orofacial clefts (NSOFCs) represent a large proportion (70%-80%) of all OFCs. They can be broadly categorized into nonsyndromic cleft lip with or without cleft palate (NSCL/P) and nonsyndromic cleft palate only (NSCPO). Although NSCL/P and NSCPO are considered etiologically distinct, recent evidence suggests the presence of shared genetic risks. Thus, we investigated the genetic overlap between NSCL/P and NSCPO using African genome-wide association study (GWAS) data on NSOFCs. These data consist of 814 NSCL/P, 205 NSCPO cases, and 2159 unrelated controls. We generated common single-nucleotide variants (SNVs) association summary statistics separately for each phenotype (NSCL/P and NSCPO) under an additive genetic model. Subsequently, we employed the pleiotropic analysis under the composite null (PLACO) method to test for genetic overlap. Our analysis identified two loci with genome-wide significance (rs181737795 [p = 2.58E-08] and rs2221169 [p = 4.5E-08]) and one locus with marginal significance (rs187523265 [p = 5.22E-08]). Using mouse transcriptomics data and information from genetic phenotype databases, we identified MDN1, MAP3k7, KMT2A, ARCN1, and VADC2 as top candidate genes for the associated SNVs. These findings enhance our understanding of genetic variants associated with NSOFCs and identify potential candidate genes for further exploration.
Collapse
Affiliation(s)
- Azeez Alade
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Tabitha Peter
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Tamara Busch
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Waheed Awotoye
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, Delaware, USA
| | - Oladayo Abimbola
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Emmanuel Aladenika
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Mojisola Olujitan
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Oscar Rysavy
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Phuong Fawng Nguyen
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Thirona Naicker
- Department of Paediatrics, Clinical Genetics, University of KwaZulu-Natal and Inkosi Albert Luthuli Central Hospital, Durban, South Africa
| | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Lord J J Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen A Eshete
- Department of Surgery, Addis Ababa University, School of Medicine, Addis Ababa, Ethiopia
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Erliang Zeng
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Eric Van Otterloo
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
- Department of Periodontics, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - Michael O'Rorke
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | | | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Salil A Lachke
- Department of Biological Sciences, University of Delaware, Newark, Delaware, USA
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, Delaware, USA
| | - Paul A Romitti
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Azeez Butali
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| |
Collapse
|
3
|
Awotoye W, Mossey PA, Hetmanski JB, Gowans LJ, Eshete MA, Adeyemo WL, Alade A, Zeng E, Adamson O, James O, Fashina A, Ogunlewe MO, Naicker T, Adeleke C, Busch T, Li M, Petrin A, Oladayo A, Kayali S, Olotu J, Sule V, Hassan M, Pape J, Aladenika ET, Donkor P, Arthur FK, Obiri-Yeboah S, Sabbah DK, Agbenorku P, Ray D, Plange-Rhule G, Oti AA, Albokhari D, Sobreira N, Dunnwald M, Beaty TH, Taub M, Marazita ML, Adeyemo AA, Murray JC, Butali A. Damaging Mutations in AFDN Contribute to Risk of Nonsyndromic Cleft Lip With or Without Cleft Palate. Cleft Palate Craniofac J 2024; 61:697-705. [PMID: 36384317 PMCID: PMC10185709 DOI: 10.1177/10556656221135926] [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] [Indexed: 11/18/2022] Open
Abstract
Novel or rare damaging mutations have been implicated in the developmental pathogenesis of nonsyndromic cleft lip with or without cleft palate (nsCL ± P). Thus, we investigated the human genome for high-impact mutations that could explain the risk of nsCL ± P in our cohorts. We conducted next-generation sequencing (NGS) analysis of 130 nsCL ± P case-parent African trios to identify pathogenic variants that contribute to the risk of clefting. We replicated this analysis using whole-exome sequence data from a Brazilian nsCL ± P cohort. Computational analyses were then used to predict the mechanism by which these variants could result in increased risks for nsCL ± P. We discovered damaging mutations within the AFDN gene, a cell adhesion molecule (CAMs) that was previously shown to contribute to cleft palate in mice. These mutations include p.Met1164Ile, p.Thr453Asn, p.Pro1638Ala, p.Arg669Gln, p.Ala1717Val, and p.Arg1596His. We also discovered a novel splicing p.Leu1588Leu mutation in this protein. Computational analysis suggests that these amino acid changes affect the interactions with other cleft-associated genes including nectins (PVRL1, PVRL2, PVRL3, and PVRL4) CDH1, CTNNA1, and CTNND1. This is the first report on the contribution of AFDN to the risk for nsCL ± P in humans. AFDN encodes AFADIN, an important CAM that forms calcium-independent complexes with nectins 1 and 4 (encoded by the genes PVRL1 and PVRL4). This discovery shows the power of NGS analysis of multiethnic cleft samples in combination with a computational approach in the understanding of the pathogenesis of nsCL ± P.
Collapse
Affiliation(s)
- Waheed Awotoye
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Peter A. Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Jacqueline B. Hetmanski
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lord J.J Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen A. Eshete
- Addis Ababa University, School Medicine, Surgical Department, Addis Ababa, Ethiopia
| | - Wasiu L. Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Erliang Zeng
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olawale Adamson
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Olutayo James
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Azeez Fashina
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Modupe O Ogunlewe
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos Nigeria
| | - Thirona Naicker
- Department of Pediatrics, University of KwaZulu-Natal, South Africa
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Aline Petrin
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Abimbola Oladayo
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Sami Kayali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, University of Port Harcourt
| | - Veronica Sule
- Department of Operative Dentistry, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - John Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Emmanuel T. Aladenika
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Peter Donkor
- Department of Surgery, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Fareed K.N. Arthur
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Solomon Obiri-Yeboah
- Department of Maxillofacial Sciences, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel K. Sabbah
- Department of Child Oral Health and Orthodontics, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Pius Agbenorku
- Department of Surgery, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Debashree Ray
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Gyikua Plange-Rhule
- Department of Child Health, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander Acheampong Oti
- Department of Maxillofacial Sciences, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniah Albokhari
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University
| | - Nara Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University
| | | | - Terri H. Beaty
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Margaret Taub
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, School of Dental Medicine, and Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | | | | | - Azeez Butali
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
4
|
Kantaputra P, Butali A, Eliason S, Chalkley C, Nakornchai S, Bongkochwilawan C, Kawasaki K, Kumchiang A, Ngamphiw C, Tongsima S, Ketudat Cairns JR, Olsen B, Intachai W, Ohazama A, Tucker AS, Amendt BA. CACNA1S mutation-associated dental anomalies: A calcium channelopathy. Oral Dis 2024; 30:1350-1359. [PMID: 36825457 PMCID: PMC11229413 DOI: 10.1111/odi.14551] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 02/11/2023] [Accepted: 02/22/2023] [Indexed: 02/25/2023]
Abstract
OBJECTIVES To identify the molecular etiology of distinct dental anomalies found in eight Thai patients and explore the mutational effects on cellular functions. MATERIALS AND METHODS Clinical and radiographic examinations were performed for eight patients. Whole exome sequencing, mutant protein modelling, qPCR, western blot analysis, scratch assays, immunofluorescence, confocal analysis, in situ hybridization, and scanning electron micrography of teeth were done. RESULTS All patients had molars with multiple supernumerary cusps, single-cusped premolars, and a reduction in root number. Mutation analysis highlighted a heterozygous c.865A>G; p.Ile289Val mutation in CACNA1S in the patients. CACNA1S is a component of the slowly inactivating L-type voltage-dependent calcium channel. Mutant protein modeling suggested that the mutation might allow leakage of Ca2+ or other cations, or a tightening, to restrict calcium flow. Immunohistochemistry analysis showed expression of Cacna1s in the developing murine tooth epithelium during stages of crown and root morphogenesis. In cell culture, the mutation resulted in abnormal cell migration of transfected CHO cells compared to wildtype CACNA1S, with changes to the cytoskeleton and markers of focal adhesion. CONCLUSIONS The malformations observed in our patients suggest a role for calcium signaling in organization of both cusps and roots, affecting cell dynamics within the dental epithelium.
Collapse
Affiliation(s)
- P Kantaputra
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - A Butali
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - S Eliason
- Department of Anatomy and Cell Biology, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, Iowa, USA
| | - C Chalkley
- Department of Anatomy and Cell Biology, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, Iowa, USA
| | - S Nakornchai
- Department of Pediatric Dentistry, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - C Bongkochwilawan
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - K Kawasaki
- Division of Oral Anatomy, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A Kumchiang
- Na-Chauk Hospital, Na-Chauk, Maha Sarakham, Thailand
| | - C Ngamphiw
- National Biobank of Thailand, National Science and Technology Development Agency (NSTDA), Thailand Science Park, Khlong Luang, Pathum Thani, Thailand
| | - S Tongsima
- National Biobank of Thailand, National Science and Technology Development Agency (NSTDA), Thailand Science Park, Khlong Luang, Pathum Thani, Thailand
| | - J R Ketudat Cairns
- Center for Biomolecular Structure, Function and Application, School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, Thailand
- Laboratory of Biochemistry, Chulabhorn Research Institute, Bangkok, Thailand
| | - B Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - W Intachai
- Center of Excellence in Medical Genetics Research, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
- Division of Pediatric Dentistry, Department of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - A Ohazama
- Division of Oral Anatomy, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - A S Tucker
- Centre for Craniofacial and Regenerative Biology, King's College London, London, UK
| | - B A Amendt
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
- Department of Anatomy and Cell Biology, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, Iowa, USA
| |
Collapse
|
5
|
Diaz Perez KK, Chung S, Head ST, Epstein MP, Hecht JT, Wehby GL, Weinberg SM, Murray JC, Marazita ML, Leslie EJ. Rare variants found in multiplex families with orofacial clefts: Does expanding the phenotype make a difference? Am J Med Genet A 2023; 191:2558-2570. [PMID: 37350193 PMCID: PMC10528230 DOI: 10.1002/ajmg.a.63336] [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: 02/01/2023] [Revised: 04/25/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
Exome sequencing (ES) is now a relatively straightforward process to identify causal variants in Mendelian disorders. However, the same is not true for ES in families where the inheritance patterns are less clear, and a complex etiology is suspected. Orofacial clefts (OFCs) are highly heritable birth defects with both Mendelian and complex etiologies. The phenotypic spectrum of OFCs may include overt clefts and several subclinical phenotypes, such as discontinuities in the orbicularis oris muscle (OOM) in the upper lip, velopharyngeal insufficiency (VPI), microform clefts or bifid uvulas. We hypothesize that expanding the OFC phenotype to include these phenotypes can clarify inheritance patterns in multiplex families, making them appear more Mendelian. We performed exome sequencing to find rare, likely causal genetic variants in 31 multiplex OFC families, which included families with multiple individuals with OFCs and individuals with subclinical phenotypes. We identified likely causal variants in COL11A2, IRF6, SHROOM3, SMC3, TBX3, and TP63 in six families. Although we did not find clear evidence supporting the subclinical phenotype hypothesis, our findings support a role for rare variants in the etiology of OFCs.
Collapse
Affiliation(s)
- Kimberly K Diaz Perez
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Sydney Chung
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - S Taylor Head
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Michael P Epstein
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jacqueline T Hecht
- Department of Pediatrics, McGovern Medical, School and School of Dentistry, UT Health at Houston, Houston, Texas, USA
| | - George L Wehby
- Department of Health Management and Policy, University of Iowa, Iowa City, Iowa, USA
| | - Seth M Weinberg
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh School of Dental Medicine, Pittsburgh, Pennsylvania, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh School of Dental Medicine, Pittsburgh, Pennsylvania, USA
| | - Elizabeth J Leslie
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia, USA
| |
Collapse
|
6
|
Piña JO, Raju R, Roth DM, Winchester EW, Chattaraj P, Kidwai F, Faucz FR, Iben J, Mitra A, Campbell K, Fridell G, Esnault C, Cotney JL, Dale RK, D'Souza RN. Multimodal spatiotemporal transcriptomic resolution of embryonic palate osteogenesis. Nat Commun 2023; 14:5687. [PMID: 37709732 PMCID: PMC10502152 DOI: 10.1038/s41467-023-41349-9] [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: 09/15/2022] [Accepted: 08/30/2023] [Indexed: 09/16/2023] Open
Abstract
The terminal differentiation of osteoblasts and subsequent formation of bone marks an important phase in palate development that leads to the separation of the oral and nasal cavities. While the morphogenetic events preceding palatal osteogenesis are well explored, major gaps remain in our understanding of the molecular mechanisms driving the formation of this bony union of the fusing palate. Through bulk, single-nucleus, and spatially resolved RNA-sequencing analyses of the developing secondary palate, we identify a shift in transcriptional programming between embryonic days 14.5 and 15.5 pinpointing the onset of osteogenesis. We define spatially restricted expression patterns of key osteogenic marker genes that are differentially expressed between these developmental timepoints. Finally, we identify genes in the palate highly expressed by palate nasal epithelial cells, also enriched within palatal osteogenic mesenchymal cells. This investigation provides a relevant framework to advance palate-specific diagnostic and therapeutic biomarker discovery.
Collapse
Affiliation(s)
- Jeremie Oliver Piña
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
- School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Resmi Raju
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Daniela M Roth
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
- School of Dentistry, University of Alberta, Edmonton, AB, Canada
| | | | - Parna Chattaraj
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Fahad Kidwai
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Fabio R Faucz
- Molecular Genomics Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - James Iben
- Molecular Genomics Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Apratim Mitra
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Kiersten Campbell
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Gus Fridell
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Caroline Esnault
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Justin L Cotney
- Department of Genetics and Genome Sciences, University of Connecticut, Farmington, CT, USA
| | - Ryan K Dale
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Rena N D'Souza
- Section on Craniofacial Genetic Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA.
| |
Collapse
|
7
|
Kini U. Genetics and orofacial clefts: a clinical perspective. Br Dent J 2023; 234:947-952. [PMID: 37349452 PMCID: PMC10287552 DOI: 10.1038/s41415-023-5994-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/22/2023] [Accepted: 05/22/2023] [Indexed: 06/24/2023]
Abstract
Orofacial clefts (OFCs) are the most common congenital craniofacial anomaly seen in humans. Most OFCs are sporadic and isolated - these are thought to be multifactorial in origin. Chromosomal and monogenic variants account for the syndromic forms and for some of the non-syndromic inherited forms. This review discusses the importance of genetic testing and the current clinical strategy to deliver a genomics service that is of direct benefit to patients and their families.
Collapse
Affiliation(s)
- Usha Kini
- Oxford Centre for Genomic Medicine, Oxford University Hospitals, UK; Spires Cleft Service, Oxford University Hospitals, UK; NDCLS, Radcliffe Department of Medicine, University of Oxford, United Kingdom.
| |
Collapse
|
8
|
Piña JO, Raju R, Roth DM, Chattaraj P, Kidwai F, Faucz FR, Iben J, Mitra A, Campbell K, Fridell G, Esnault C, Dale RK, D’Souza RN. Integrated spatiotemporal transcriptomic resolution of embryonic palate osteogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.30.534875. [PMID: 37333290 PMCID: PMC10274879 DOI: 10.1101/2023.03.30.534875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
The differentiation of osteoblasts and the subsequent formation of bone marks an important terminal phase in palate formation that leads to the separation of the oral and nasal cavities. While the developmental events that precede palatal osteogenesis are well explored, major gaps remain in our understanding of the molecular mechanisms that lead to the bony union of fusing palatal shelves. Herein, the timeline of osteogenic transcriptional programming is unveiled in the embryonic palate by way of integrated bulk, single-cell, and spatially resolved RNA-seq analyses. We define spatially restricted expression patterns of key marker genes, both regulatory and structural, that are differentially expressed during palatal fusion, including the identification of several novel genes ( Deup1, Dynlrb2, Lrrc23 ) spatially restricted in expression to the palate, providing a relevant framework for future studies that identify new candidate genes for cleft palate anomalies in humans as well as the timing of mammalian embryonic palatal osteogenesis.
Collapse
Affiliation(s)
- Jeremie Oliver Piña
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
- School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Resmi Raju
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Daniela M. Roth
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
- School of Dentistry, University of Alberta, Edmonton, AB, CA
| | - Parna Chattaraj
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Fahad Kidwai
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Fabio R. Faucz
- Molecular Genomics Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - James Iben
- Molecular Genomics Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Apratim Mitra
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Kiersten Campbell
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Gus Fridell
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Caroline Esnault
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Ryan K. Dale
- Bioinformatics and Scientific Programming Core, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Rena N. D’Souza
- Section on Molecules & Therapies for Craniofacial & Dental Disorders, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| |
Collapse
|
9
|
Dąbrowska J, Biedziak B, Bogdanowicz A, Mostowska A. Identification of Novel Risk Variants of Non-Syndromic Cleft Palate by Targeted Gene Panel Sequencing. J Clin Med 2023; 12:2051. [PMID: 36902838 PMCID: PMC10004578 DOI: 10.3390/jcm12052051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Non-syndromic cleft palate (ns-CP) has a genetically heterogeneous aetiology. Numerous studies have suggested a crucial role of rare coding variants in characterizing the unrevealed component of genetic variation in ns-CP called the "missing heritability". Therefore, this study aimed to detect low-frequency variants that are implicated in ns-CP aetiology in the Polish population. For this purpose, coding regions of 423 genes associated with orofacial cleft anomalies and/or involved with facial development were screened in 38 ns-CP patients using the next-generation sequencing technology. After multistage selection and prioritisation, eight novel and four known rare variants that may influence an individual's risk of ns-CP were identified. Among detected alternations, seven were located in novel candidate genes for ns-CP, including COL17A1 (c.2435-1G>A), DLG1 (c.1586G>C, p.Glu562Asp), NHS (c.568G>C, p.Val190Leu-de novo variant), NOTCH2 (c.1997A>G, p.Tyr666Cys), TBX18 (c.647A>T, p.His225Leu), VAX1 (c.400G>A, p.Ala134Thr) and WNT5B (c.716G>T, p.Arg239Leu). The remaining risk variants were identified within genes previously linked to ns-CP, confirming their contribution to this anomaly. This list included ARHGAP29 (c.1706G>A, p.Arg569Gln), FLNB (c.3605A>G, Tyr1202Cys), IRF6 (224A>G, p.Asp75Gly-de novo variant), LRP6 (c.481C>A, p.Pro161Thr) and TP63 (c.353A>T, p.Asn118Ile). In summary, this study provides further insights into the genetic components contributing to ns-CP aetiology and identifies novel susceptibility genes for this craniofacial anomaly.
Collapse
Affiliation(s)
- Justyna Dąbrowska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Barbara Biedziak
- Department of Orthodontics and Craniofacial Anomalies, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Agnieszka Bogdanowicz
- Department of Orthodontics and Craniofacial Anomalies, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Adrianna Mostowska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| |
Collapse
|
10
|
Slavec L, Geršak K, Eberlinc A, Hovnik T, Lovrečić L, Mlinarič-Raščan I, Karas Kuželički N. A Comprehensive Genetic Analysis of Slovenian Families with Multiple Cases of Orofacial Clefts Reveals Novel Variants in the Genes IRF6, GRHL3, and TBX22. Int J Mol Sci 2023; 24:ijms24054262. [PMID: 36901693 PMCID: PMC10002089 DOI: 10.3390/ijms24054262] [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: 11/25/2022] [Revised: 01/13/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
Although the aetiology of non-syndromic orofacial clefts (nsOFCs) is usually multifactorial, syndromic OFCs (syOFCs) are often caused by single mutations in known genes. Some syndromes, e.g., Van der Woude syndrome (VWS1; VWS2) and X-linked cleft palate with or without ankyloglossia (CPX), show only minor clinical signs in addition to OFC and are sometimes difficult to differentiate from nsOFCs. We recruited 34 Slovenian multi-case families with apparent nsOFCs (isolated OFCs or OFCs with minor additional facial signs). First, we examined IRF6, GRHL3, and TBX22 by Sanger or whole exome sequencing to identify VWS and CPX families. Next, we examined 72 additional nsOFC genes in the remaining families. Variant validation and co-segregation analysis were performed for each identified variant using Sanger sequencing, real-time quantitative PCR and microarray-based comparative genomic hybridization. We identified six disease-causing variants (three novel) in IRF6, GRHL3, and TBX22 in 21% of families with apparent nsOFCs, suggesting that our sequencing approach is useful for distinguishing syOFCs from nsOFCs. The novel variants, a frameshift variant in exon 7 of IRF6, a splice-altering variant in GRHL3, and a deletion of the coding exons of TBX22, indicate VWS1, VWS2, and CPX, respectively. We also identified five rare variants in nsOFC genes in families without VWS or CPX, but they could not be conclusively linked to nsOFC.
Collapse
Affiliation(s)
- Lara Slavec
- Research Unit, Division of Gynaecology and Obstetrics, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Ksenija Geršak
- Research Unit, Division of Gynaecology and Obstetrics, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Department of Gynaecology and Obstetrics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Andreja Eberlinc
- Department of Maxillofacial and Oral Surgery, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Tinka Hovnik
- Clinical Institute for Special Laboratory Diagnostics, University Children’s Hospital, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Luca Lovrečić
- Department of Gynaecology and Obstetrics, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
| | - Irena Mlinarič-Raščan
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Nataša Karas Kuželički
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
- Correspondence:
| |
Collapse
|
11
|
Perez KKD, Chung S, Head ST, Epstein MP, Hecht JT, Wehby GL, Weinberg SM, Murray JC, Marazita ML, Leslie EJ. Rare variants found in multiplex families with orofacial clefts: Does expanding the phenotype make a difference? MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.02.01.23285340. [PMID: 36798250 PMCID: PMC9934724 DOI: 10.1101/2023.02.01.23285340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Whole-exome sequencing (WES) is now a relatively straightforward process to identify causal variants in Mendelian disorders. However, the same is not true for WES in families where the inheritance patterns are less clear, and a complex etiology is suspected. Orofacial clefts (OFCs) are highly heritable birth defects with both Mendelian and complex etiologies. The phenotypic spectrum of OFCs may include overt clefts and several subclinical phenotypes, such as discontinuities in the orbicularis oris muscle (OOM) in the upper lip, velopharyngeal insufficiency (VPI), microform clefts or bifid uvulas. We hypothesize that expanding the OFC phenotype to include these phenotypes can clarify inheritance patterns in multiplex families, making them appear more Mendelian. We performed whole-exome sequencing to find rare, likely causal genetic variants in 31 multiplex OFC families, which included families with multiple individuals with OFCs and individuals with subclinical phenotypes. We identified likely causal variants in COL11A2, IRF6, KLF4, SHROOM3, SMC3, TP63 , and TBX3 in seven families. Although we did not find clear evidence supporting the subclinical phenotype hypothesis, our findings support a role for rare variants in the etiology of OFCs.
Collapse
Affiliation(s)
- Kimberly K Diaz Perez
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Sydney Chung
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - S Taylor Head
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Michael P Epstein
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Jacqueline T Hecht
- Department of Pediatrics, McGovern Medical, School and School of Dentistry, UT Health at Houston, Houston, TX 77030, USA
| | - George L Wehby
- Department of Health Management and Policy, University of Iowa, Iowa City, IA, 52242, USA
| | - Seth M Weinberg
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA, 15213, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, IA, 52242, USA
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, University of Pittsburgh School of Dental Medicine, Pittsburgh, PA, 15213, USA
| | - Elizabeth J Leslie
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| |
Collapse
|
12
|
Reeb T, Rhea L, Adelizzi E, Garnica B, Dunnwald E, Dunnwald M. ARHGAP29 is required for keratinocyte proliferation and migration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.30.525978. [PMID: 36778214 PMCID: PMC9915469 DOI: 10.1101/2023.01.30.525978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND RhoA GTPase plays critical roles in actin cytoskeletal remodeling required for controlling a diverse range of cellular functions including cell proliferation, cell adhesions, migration and changes in cell shape. RhoA cycles between an active GTP-bound and an inactive GDP-bound form, a process that is regulated by guanine nucleotide exchange factors (GEFs), and GTPase-activating proteins (GAPs). ARHGAP29 is a GAP expressed in keratinocytes of the skin and is decreased in the absence of Interferon Regulator Factor 6, a critical regulator of cell proliferation and migration. However, the role for ARHGAP29 in keratinocyte biology is unknown. RESULTS Novel ARHGAP29 knockdown keratinocyte cell lines were generated using both CRISPR/Cas9 and shRNA technologies. Knockdown cells exhibited significant reduction of ARHGAP29 protein (50-80%) and displayed increased filamentous actin (stress fibers), phospho-myosin light chain (contractility), cell area and population doubling time. Furthermore, we found that ARHGAP29 knockdown keratinocytes displayed significant delays in scratch wound closure in both single cell and collective cell migration conditions. Particularly, our results show a reduction in path lengths, speed, directionality and persistence in keratinocytes with reduced ARHGAP29. The delay in scratch closure was rescued by both adding back ARHGAP29 or adding a ROCK inhibitor to ARHGAP29 knockdown cells. CONCLUSIONS These data demonstrate that ARHGAP29 is required for keratinocyte morphology, proliferation and migration mediated through the RhoA pathway.
Collapse
|
13
|
Ultra-Rare Variants Identify Biological Pathways and Candidate Genes in the Pathobiology of Non-Syndromic Cleft Palate Only. Biomolecules 2023; 13:biom13020236. [PMID: 36830605 PMCID: PMC9953608 DOI: 10.3390/biom13020236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/20/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023] Open
Abstract
In recent decades, many efforts have been made to elucidate the genetic causes of non-syndromic cleft palate (nsCPO), a complex congenital disease caused by the interaction of several genetic and environmental factors. Since genome-wide association studies have evidenced a minor contribution of common polymorphisms in nsCPO inheritance, we used whole exome sequencing data to explore the role of ultra-rare variants in this study. In a cohort of 35 nsCPO cases and 38 controls, we performed a gene set enrichment analysis (GSEA) and a hypergeometric test for assessing significant overlap between genes implicated in nsCPO pathobiology and genes enriched in ultra-rare variants in our cohort. GSEA highlighted an enrichment of ultra-rare variants in genes principally belonging to cytoskeletal protein binding pathway (Probability Density Function corrected p-value = 1.57 × 10-4); protein-containing complex binding pathway (p-value = 1.06 × 10-2); cell adhesion molecule binding pathway (p-value = 1.24 × 10-2); ECM-receptor interaction pathway (p-value = 1.69 × 10-2); and in the Integrin signaling pathway (p-value = 1.28 × 10-2). Two genes implicated in nsCPO pathobiology, namely COL2A1 and GLI3, ranked among the genes (n = 34) with nominal enrichment in the ultra-rare variant collapsing analysis (Fisher's exact test p-value < 0.05). These genes were also part of an independent list of genes highly relevant to nsCPO biology (n = 25). Significant overlap between the two sets of genes (hypergeometric test p-value = 5.86 × 10-3) indicated that enriched genes are likely to be implicated in physiological palate development and/or the pathological processes of oral clefting. In conclusion, ultra-rare variants collectively impinge on biological pathways crucial to nsCPO pathobiology and point to candidate genes that may contribute to the individual risk of disease. Sequencing can be an effective approach to identify candidate genes and pathways for nsCPO.
Collapse
|
14
|
Li M, Olotu J, Buxo-Martinez CJ, Mossey PA, Anand D, Busch T, Alade A, Gowans LJJ, Eshete M, Adeyemo WL, Naicker T, Awotoye WO, Gupta S, Adeleke C, Bravo V, Huang S, Adamson OO, Toraño AM, Bello CA, Soto M, Soto M, Ledesma R, Marquez M, Cordero JF, Lopez-Del Valle LM, Salcedo MI, Debs N, Petrin A, Malloy H, Elhadi K, James O, Ogunlewe MO, Abate F, Hailu A, Mohammed I, Gravem P, Deribew M, Gesses M, Hassan M, Pape J, Obiri-Yeboah S, Arthur FKN, Oti AA, Donkor P, Marazita ML, Lachke SA, Adeyemo AA, Murray JC, Butali A. Variant analyses of candidate genes in orofacial clefts in multi-ethnic populations. Oral Dis 2022; 28:1921-1935. [PMID: 34061439 PMCID: PMC9733635 DOI: 10.1111/odi.13932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/14/2021] [Accepted: 05/09/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Cleft lip with/without cleft palate and cleft palate only is congenital birth defects where the upper lip and/or palate fail to fuse properly during embryonic facial development. Affecting ~1.2/1000 live births worldwide, these orofacial clefts impose significant social and financial burdens on affected individuals and their families. Orofacial clefts have a complex etiology resulting from genetic variants combined with environmental covariates. Recent genome-wide association studies and whole-exome sequencing for orofacial clefts identified significant genetic associations and variants in several genes. Of these, we investigated the role of common/rare variants in SHH, RORA, MRPL53, ACVR1, and GDF11. MATERIALS AND METHODS We sequenced these five genes in 1255 multi-ethnic cleft lip with/without palate and cleft palate only samples in order to find variants that may provide potential explanations for the missing heritability of orofacial clefts. Rare and novel variants were further analyzed using in silico predictive tools. RESULTS Ninteen total variants of interest were found, with variant types including stop-gain, missense, synonymous, intronic, and splice-site variants. Of these, 3 novel missense variants were found, one in SHH, one in RORA, and one in GDF11. CONCLUSION This study provides evidence that variants in SHH, RORA, MRPL53, ACVR1, and GDF11 may contribute to risk of orofacial clefts in various populations.
Collapse
Affiliation(s)
- Mary Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Joy Olotu
- Department of Anatomy, University of Health Sciences, University of Port Harcourt, Choba, Nigeria
| | - Carmen J Buxo-Martinez
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - Tamara Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Lord J J Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen Eshete
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Thirona Naicker
- Genetics, Department of Pediatrics, University of KwaZulu-Natal, Durban, South Africa
| | - Waheed O Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Sagar Gupta
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Chinyere Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Valeria Bravo
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Siyong Huang
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olatunbosun O Adamson
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | | | | | - Mairim Soto
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Marilyn Soto
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Ricardo Ledesma
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Myrellis Marquez
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Jose F Cordero
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Lydia M Lopez-Del Valle
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Maria I Salcedo
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Natalio Debs
- Dental and Craniofacial Genomics Core, University of Puerto Rico School of Dental Medicine, San Juan, PR, USA
| | - Aline Petrin
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Hannah Malloy
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Khalid Elhadi
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Olutayo James
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Mobolanle O Ogunlewe
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Fekir Abate
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Abiye Hailu
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Ibrahim Mohammed
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Paul Gravem
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Milliard Deribew
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mulualem Gesses
- College of Health Sciences, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Mohaned Hassan
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - John Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - Solomon Obiri-Yeboah
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Fareed K N Arthur
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Alexander A Oti
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Peter Donkor
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mary L Marazita
- Center for Craniofacial and Dental Genetics, Departments of Oral Biology and Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Salil A Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Adebowale A Adeyemo
- Department of Orthodontics, University of Dundee, Dundee, UK
- National Human Genomic Research Institute, Bethesda, MD, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
15
|
Li MJ, Shi JY, Zhang BH, Chen QM, Shi B, Jia ZL. Targeted re-sequencing on 1p22 among non-syndromic orofacial clefts from Han Chinese population. Front Genet 2022; 13:947126. [PMID: 36061182 PMCID: PMC9428125 DOI: 10.3389/fgene.2022.947126] [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: 05/18/2022] [Accepted: 07/08/2022] [Indexed: 11/20/2022] Open
Abstract
Rs560426 at 1p22 was proved to be associated with NSCL/P (non-syndromic cleft lip with or without the palate) in several populations, including Han Chinese population. Here, we conducted a deep sequencing around rs560426 to locate more susceptibility variants in this region. In total, 2,293 NSCL/P cases and 3,235 normal controls were recruited. After sequencing, association analysis was performed. Western blot, RT-qPCR, HE, immunofluorescence staining, and RNA sequencing were conducted for functional analyses of the selected variants. Association analysis indicated that rs77179923 was the only SNP associated with NSCLP specifically (p = 4.70E-04, OR = 1.84), and rs12071152 was uniquely associated with LCLO (p = 4.00E-04, OR = 1.30, 95%CI: 1.12–1.51). Moreover, de novo harmful rare variant NM_004815.3, NP_004806.3; c.1652G>C, p.R551T in ARHGAP29 resulted in a decreased expression level of ARHGAP29, which in turn affected NSCL/P-related biological processes; however, no overt cleft palate (CP) phenotype was observed. In conclusion, rs12071152 was a new susceptible variant, which is specifically associated with LCLO among the Han Chinese population. Allele A of it could increase the risk of having a cleft baby. Rs77179923 and rare variant NM_004815.3, NP_004806.3; c.1652G>C, p.R551T at 1p22 were both associated with NSCLP among the Han Chinese population. However, this missense variation contributes to no overt CP phenotype due to dosage insufficiency or compensation from other genes.
Collapse
Affiliation(s)
- Mu-Jia Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cleft Lip and Palate, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jia-Yu Shi
- Division of Growth and Development and Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, United States
| | - Bi-He Zhang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cleft Lip and Palate, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qian-Ming Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bing Shi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cleft Lip and Palate, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhong-Lin Jia
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Cleft Lip and Palate, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Zhong-Lin Jia,
| |
Collapse
|
16
|
Whole-genome sequencing reveals de-novo mutations associated with nonsyndromic cleft lip/palate. Sci Rep 2022; 12:11743. [PMID: 35817949 PMCID: PMC9273634 DOI: 10.1038/s41598-022-15885-1] [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: 11/09/2021] [Accepted: 04/22/2022] [Indexed: 11/08/2022] Open
Abstract
The majority (85%) of nonsyndromic cleft lip with or without cleft palate (nsCL/P) cases occur sporadically, suggesting a role for de novo mutations (DNMs) in the etiology of nsCL/P. To identify high impact protein-altering DNMs that contribute to the risk of nsCL/P, we conducted whole-genome sequencing (WGS) analyses in 130 African case-parent trios (affected probands and unaffected parents). We identified 162 high confidence protein-altering DNMs some of which are based on available evidence, contribute to the risk of nsCL/P. These include novel protein-truncating DNMs in the ACTL6A, ARHGAP10, MINK1, TMEM5 and TTN genes; as well as missense variants in ACAN, DHRS3, DLX6, EPHB2, FKBP10, KMT2D, RECQL4, SEMA3C, SEMA4D, SHH, TP63, and TULP4. Many of these protein-altering DNMs were predicted to be pathogenic. Analysis using mouse transcriptomics data showed that some of these genes are expressed during the development of primary and secondary palate. Gene-set enrichment analysis of the protein-altering DNMs identified palatal development and neural crest migration among the few processes that were significantly enriched. These processes are directly involved in the etiopathogenesis of clefting. The analysis of the coding sequence in the WGS data provides more evidence of the opportunity for novel findings in the African genome.
Collapse
|
17
|
Cui R, Chen D, Li N, Cai M, Wan T, Zhang X, Zhang M, Du S, Ou H, Jiao J, Jiang N, Zhao S, Song H, Song X, Ma D, Zhang J, Li S. PARD3 gene variation as candidate cause of nonsyndromic cleft palate only. J Cell Mol Med 2022; 26:4292-4304. [PMID: 35789100 PMCID: PMC9344820 DOI: 10.1111/jcmm.17452] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 12/16/2022] Open
Abstract
Nonsyndromic cleft palate only (NSCP) is a common congenital malformation worldwide. In this study, we report a three‐generation pedigree with NSCP following the autosomal‐dominant pattern. Whole‐exome sequencing and Sanger sequencing revealed that only the frameshift variant c.1012dupG [p. E338Gfs*26] in PARD3 cosegregated with the disease. In zebrafish embryos, ethmoid plate patterning defects were observed with PARD3 ortholog disruption or expression of patient‐derived N‐terminal truncating PARD3 (c.1012dupG), which implicated PARD3 in ethmoid plate morphogenesis. PARD3 plays vital roles in determining cellular polarity. Compared with the apical distribution of wild‐type PARD3, PARD3‐p. E338Gfs*26 mainly localized to the basal membrane in 3D‐cultured MCF‐10A epithelial cells. The interaction between PARD3‐p. E338Gfs*26 and endogenous PARD3 was identified by LC–MS/MS and validated by co‐IP. Immunofluorescence analysis showed that PARD3‐p. E338Gfs*26 substantially altered the localization of endogenous PARD3 to the basement membrane in 3D‐cultured MCF‐10A cells. Furthermore, seven variants, including one nonsense variant and six missense variants, were identified in the coding region of PARD3 in sporadic cases with NSCP. Subsequent analysis showed that PARD3‐p. R133*, like the insertion variant of c.1012dupG, also changed the localization of endogenous full‐length PARD3 and that its expression induced abnormal ethmoid plate morphogenesis in zebrafish. Based on these data, we reveal PARD3 gene variation as a novel candidate cause of nonsyndromic cleft palate only.
Collapse
Affiliation(s)
- Renjie Cui
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.,Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Dingli Chen
- Department of Clinical Laboratory, Central Hospital of Handan, Hebei, China
| | - Na Li
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ming Cai
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Teng Wan
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xueqiang Zhang
- Department of Clinical Laboratory, Central Hospital of Handan, Hebei, China.,Oral and Maxillofacial Surgery, Central Hospital of Handan, Hebei, China
| | - Meiqin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Sichen Du
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Huayuan Ou
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianjun Jiao
- Oral and Maxillofacial Surgery, Central Hospital of Handan, Hebei, China
| | - Nan Jiang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shuangxia Zhao
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Huaidong Song
- Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xuedong Song
- Department of Clinical Laboratory, Central Hospital of Handan, Hebei, China
| | - Duan Ma
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.,Children's Hospital of Fudan University, Shanghai, China
| | - Jin Zhang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology, Collaborative Innovation Center of Genetics and Development, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shouxia Li
- Department of Clinical Laboratory, Central Hospital of Handan, Hebei, China
| |
Collapse
|
18
|
Alade A, Awotoye W, Butali A. Genetic and Epigenetic Studies in Nonsyndromic Oral Clefts. Oral Dis 2022; 28:1339-1350. [PMID: 35122708 DOI: 10.1111/odi.14146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 11/28/2022]
Abstract
The etiology of non-syndromic oral clefts (NSOFC) is complex with genetics, genomics, epigenetics and stochastics factors playing a role. Several approaches have been applied to understand the etiology of non-syndromic oral clefts. These include linkage, candidate gene association studies, genome-wide association studies, whole genome sequencing, copy number variations and epigenetics. In this review we shared these approaches, genes and loci reported in some studies.
Collapse
Affiliation(s)
- Azeez Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA.,Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - Waheed Awotoye
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
19
|
To Stick or Not to Stick: Adhesions in Orofacial Clefts. BIOLOGY 2022; 11:biology11020153. [PMID: 35205020 PMCID: PMC8869391 DOI: 10.3390/biology11020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/17/2022]
Abstract
Morphogenesis requires a tight coordination between mechanical forces and biochemical signals to inform individual cellular behavior. For these developmental processes to happen correctly the organism requires precise spatial and temporal coordination of the adhesion, migration, growth, differentiation, and apoptosis of cells originating from the three key embryonic layers, namely the ectoderm, mesoderm, and endoderm. The cytoskeleton and its remodeling are essential to organize and amplify many of the signaling pathways required for proper morphogenesis. In particular, the interaction of the cell junctions with the cytoskeleton functions to amplify the behavior of individual cells into collective events that are critical for development. In this review we summarize the key morphogenic events that occur during the formation of the face and the palate, as well as the protein complexes required for cell-to-cell adhesions. We then integrate the current knowledge into a comprehensive review of how mutations in cell-to-cell adhesion genes lead to abnormal craniofacial development, with a particular focus on cleft lip with or without cleft palate.
Collapse
|
20
|
Kumari P, Sturgeon M, Bonde G, Cornell RA. Generating Zebrafish RNA-Less Mutant Alleles by Deleting Gene Promoters with CRISPR/Cas9. Methods Mol Biol 2022; 2403:91-106. [PMID: 34913119 PMCID: PMC10136374 DOI: 10.1007/978-1-0716-1847-9_8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Danio rerio (zebrafish), traditionally used in forward genetic screens, has in the last decade become a popular model for reverse genetic studies with the introduction of TALENS, zinc finger nucleases, and CRISPR/Cas9. Unexpectedly, homozygous frameshift mutations generated by these tools frequently result in phenotypes that are less penetrant than those seen in embryos injected with antisense morpholino oligonucleotides targeting the same gene. One explanation for the difference is that some frameshift mutations result in nonsense-mediated decay of the gene transcript, a process which can induce expression of homologous genes. This form of genetic compensation, called transcriptional adaptation, does not occur when the mutant allele results in no RNA transcripts being produced from the targeted gene. Such RNA-less mutants can be generated by deleting a gene's promoter using a pair of guide RNAs and Cas9 protein. Here, we present a protocol and use it to generate alleles of arhgap29b and slc41a1 that lack detectable zygotic transcription. In the case of the arhgap29b mutant, an emerging phenotype did not segregate with the promoter deletion mutation, highlighting the potential for off-target mutagenesis with these tools. In summary, this chapter describes a method to generate zebrafish mutants that avoid a form of genetic compensation that occurs in many frameshift mutants.
Collapse
Affiliation(s)
- Priyanka Kumari
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Morgan Sturgeon
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
- Integrated DNA Technologies, Coralville, IA, USA
| | - Gregory Bonde
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA
| | - Robert A Cornell
- Department of Anatomy and Cell Biology, University of Iowa, Iowa City, IA, USA.
| |
Collapse
|
21
|
Leslie EJ. Genetic models and approaches to study orofacial clefts. Oral Dis 2021; 28:1327-1338. [PMID: 34923716 DOI: 10.1111/odi.14109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/08/2021] [Accepted: 12/16/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Orofacial clefts (OFCs) are common craniofacial birth defects with heterogeneous phenotype and etiology. Geneticists have applied nearly every available method and technology to further our understanding of the genetic architectures of OFCs. OBJECTIVE This review describes the evidence for a genetic etiology in OFCs, statistical genetic approaches employed to identify genetic causes, and how the results have shaped our current understanding of the genetic architectures of syndromic and nonsyndromic OFCs. CONCLUSION There has been rapid progress towards elucidating the genetic architectures of OFCs due to the availability of large collections of DNA samples from cases, controls, and families with OFCs and the consistent adoption of new methodologies and novel statistical approaches as they are developed. Genetic studies have identified rare and common variants influencing risk of OFCs in both Mendelian and complex forms of OFCs, blurring the distinctions traditional categories used in genetic studies and clinical medicine.
Collapse
|
22
|
Awotoye W, Comnick C, Pendleton C, Zeng E, Alade A, Mossey PA, Gowans LJJ, Eshete MA, Adeyemo WL, Naicker T, Adeleke C, Busch T, Li M, Petrin A, Olotu J, Hassan M, Pape J, Miller SE, Donkor P, Anand D, Lachke SA, Marazita ML, Adeyemo AA, Murray JC, Albokhari D, Sobreira N, Butali A. Genome-wide Gene-by-Sex Interaction Studies Identify Novel Nonsyndromic Orofacial Clefts Risk Locus. J Dent Res 2021; 101:465-472. [PMID: 34689653 DOI: 10.1177/00220345211046614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Risk loci identified through genome-wide association studies have explained about 25% of the phenotypic variations in nonsyndromic orofacial clefts (nsOFCs) on the liability scale. Despite the notable sex differences in the incidences of the different cleft types, investigation of loci for sex-specific effects has been understudied. To explore the sex-specific effects in genetic etiology of nsOFCs, we conducted a genome-wide gene × sex (GxSex) interaction study in a sub-Saharan African orofacial cleft cohort. The sample included 1,019 nonsyndromic orofacial cleft cases (814 cleft lip with or without cleft palate and 205 cleft palate only) and 2,159 controls recruited from 3 sites (Ethiopia, Ghana, and Nigeria). An additive logistic model was used to examine the joint effects of the genotype and GxSex interaction. Furthermore, we examined loci with suggestive significance (P < 1E-5) in the additive model for the effect of the GxSex interaction only. We identified a novel risk locus on chromosome 8p22 with genome-wide significant joint and GxSex interaction effects (rs2720555, p2df = 1.16E-08, pGxSex = 1.49E-09, odds ratio [OR] = 0.44, 95% CI = 0.34 to 0.57). For males, the risk of cleft lip with or without cleft palate at this locus decreases with additional copies of the minor allele (p < 0.0001, OR = 0.60, 95% CI = 0.48 to 0.74), but the effect is reversed for females (p = 0.0004, OR = 1.36, 95% CI = 1.15 to 1.60). We replicated the female-specific effect of this locus in an independent cohort (p = 0.037, OR = 1.30, 95% CI = 1.02 to 1.65), but no significant effect was found for the males (p = 0.29, OR = 0.86, 95% CI = 0.65 to 1.14). This locus is in topologically associating domain with craniofacially expressed and enriched genes during embryonic development. Rare coding mutations of some of these genes were identified in nsOFC cohorts through whole exome sequencing analysis. Our study is additional proof that genome-wide GxSex interaction analysis provides an opportunity for novel findings of loci and genes that contribute to the risk of nsOFCs.
Collapse
Affiliation(s)
- W Awotoye
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - C Comnick
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - C Pendleton
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - E Zeng
- Division of Biostatistics and Computational Biology, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - A Alade
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA.,Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA, USA
| | - P A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - L J J Gowans
- Komfo Anokye Teaching Hospital and Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - M A Eshete
- Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - W L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - T Naicker
- Department of Pediatrics, University of KwaZulu-Natal, Durban, South Africa
| | - C Adeleke
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - T Busch
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - M Li
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - A Petrin
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - J Olotu
- Department of Anatomy, University of Port Harcourt, Choba, Nigeria
| | - M Hassan
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - J Pape
- Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| | - S E Miller
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA
| | - P Donkor
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - D Anand
- Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - S A Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - M L Marazita
- Center for Craniofacial and Dental Genetics, Departments of Oral Biology and Human Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - A A Adeyemo
- National Human Genomic Research Institute, Bethesda, MD, USA
| | - J C Murray
- Department of Pediatrics, University of Iowa, Iowa City, IA, USA
| | - D Albokhari
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - N Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - A Butali
- Iowa Institute for Oral Health Research, University of Iowa, Iowa City, IA, USA.,Department of Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
23
|
Ray D, Venkataraghavan S, Zhang W, Leslie EJ, Hetmanski JB, Weinberg SM, Murray JC, Marazita ML, Ruczinski I, Taub MA, Beaty TH. Pleiotropy method reveals genetic overlap between orofacial clefts at multiple novel loci from GWAS of multi-ethnic trios. PLoS Genet 2021; 17:e1009584. [PMID: 34242216 PMCID: PMC8270211 DOI: 10.1371/journal.pgen.1009584] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/06/2021] [Indexed: 12/19/2022] Open
Abstract
Based on epidemiologic and embryologic patterns, nonsyndromic orofacial clefts- the most common craniofacial birth defects in humans- are commonly categorized into cleft lip with or without cleft palate (CL/P) and cleft palate alone (CP), which are traditionally considered to be etiologically distinct. However, some evidence of shared genetic risk in IRF6, GRHL3 and ARHGAP29 regions exists; only FOXE1 has been recognized as significantly associated with both CL/P and CP in genome-wide association studies (GWAS). We used a new statistical approach, PLACO (pleiotropic analysis under composite null), on a combined multi-ethnic GWAS of 2,771 CL/P and 611 CP case-parent trios. At the genome-wide significance threshold of 5 × 10-8, PLACO identified 1 locus in 1q32.2 (IRF6) that appears to increase risk for one OFC subgroup but decrease risk for the other. At a suggestive significance threshold of 10-6, we found 5 more loci with compelling candidate genes having opposite effects on CL/P and CP: 1p36.13 (PAX7), 3q29 (DLG1), 4p13 (LIMCH1), 4q21.1 (SHROOM3) and 17q22 (NOG). Additionally, we replicated the recognized shared locus 9q22.33 (FOXE1), and identified 2 loci in 19p13.12 (RAB8A) and 20q12 (MAFB) that appear to influence risk of both CL/P and CP in the same direction. We found locus-specific effects may vary by racial/ethnic group at these regions of genetic overlap, and failed to find evidence of sex-specific differences. We confirmed shared etiology of the two OFC subtypes comprising CL/P, and additionally found suggestive evidence of differences in their pathogenesis at 2 loci of genetic overlap. Our novel findings include 6 new loci of genetic overlap between CL/P and CP; 3 new loci between pairwise OFC subtypes; and 4 loci not previously implicated in OFCs. Our in-silico validation showed PLACO is robust to subtype-specific effects, and can achieve massive power gains over existing approaches for identifying genetic overlap between disease subtypes. In summary, we found suggestive evidence for new genetic regions and confirmed some recognized OFC genes either exerting shared risk or with opposite effects on risk to OFC subtypes.
Collapse
Affiliation(s)
- Debashree Ray
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail: (DR); (THB)
| | - Sowmya Venkataraghavan
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Wanying Zhang
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Elizabeth J. Leslie
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Jacqueline B. Hetmanski
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Seth M. Weinberg
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Center for Craniofacial and Dental Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Jeffrey C. Murray
- Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, Iowa, United States of America
| | - Mary L. Marazita
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Center for Craniofacial and Dental Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Ingo Ruczinski
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Margaret A. Taub
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Terri H. Beaty
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail: (DR); (THB)
| |
Collapse
|
24
|
Welzenbach J, Hammond NL, Nikolić M, Thieme F, Ishorst N, Leslie EJ, Weinberg SM, Beaty TH, Marazita ML, Mangold E, Knapp M, Cotney J, Rada-Iglesias A, Dixon MJ, Ludwig KU. Integrative approaches generate insights into the architecture of non-syndromic cleft lip with or without cleft palate. HGG ADVANCES 2021; 2:100038. [PMID: 35047836 PMCID: PMC8756534 DOI: 10.1016/j.xhgg.2021.100038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022] Open
Abstract
Non-syndromic cleft lip with or without cleft palate (nsCL/P) is a common congenital facial malformation with a multifactorial etiology. Genome-wide association studies (GWASs) have identified multiple genetic risk loci. However, functional interpretation of these loci is hampered by the underrepresentation in public resources of systematic functional maps representative of human embryonic facial development. To generate novel insights into the etiology of nsCL/P, we leveraged published GWAS data on nsCL/P as well as available chromatin modification and expression data on mid-facial development. Our analyses identified five novel risk loci, prioritized candidate target genes within associated regions, and highlighted distinct pathways. Furthermore, the results suggest the presence of distinct regulatory effects of nsCL/P risk variants throughout mid-facial development and shed light on its regulatory architecture. Our integrated data provide a platform to advance hypothesis-driven molecular investigations of nsCL/P and other human facial defects.
Collapse
Affiliation(s)
- Julia Welzenbach
- Institute of Human Genetics, University Hospital Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Nigel L. Hammond
- Faculty of Biology, Medicine, and Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PT, UK
| | - Miloš Nikolić
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Frederic Thieme
- Institute of Human Genetics, University Hospital Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Nina Ishorst
- Institute of Human Genetics, University Hospital Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Elizabeth J. Leslie
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA, USA
| | - Seth M. Weinberg
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Terri H. Beaty
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Psychiatry and Clinical and Translational Science Institute, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Elisabeth Mangold
- Institute of Human Genetics, University Hospital Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Michael Knapp
- Institute of Medical Biometry, Informatics, and Epidemiology, University Hospital Bonn, Bonn, Germany
| | - Justin Cotney
- Department of Genetics and Genome Sciences, UConn Health, Farmington, CT, USA
- Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| | - Alvaro Rada-Iglesias
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Institute of Biomedicine and Biotechnology of Cantabria (IBBTEC), University of Cantabria, Cantabria, Spain
| | - Michael J. Dixon
- Faculty of Biology, Medicine, and Health, Manchester Academic Health Sciences Centre, University of Manchester, Manchester M13 9PT, UK
| | - Kerstin U. Ludwig
- Institute of Human Genetics, University Hospital Bonn, Medical Faculty, Venusberg-Campus 1, 53127 Bonn, Germany
| |
Collapse
|
25
|
Machado RA, Martelli-Junior H, Reis SRDA, Küchler EC, Scariot R, das Neves LT, Coletta RD. Identification of Novel Variants in Cleft Palate-Associated Genes in Brazilian Patients With Non-syndromic Cleft Palate Only. Front Cell Dev Biol 2021; 9:638522. [PMID: 34307341 PMCID: PMC8297955 DOI: 10.3389/fcell.2021.638522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/30/2021] [Indexed: 12/17/2022] Open
Abstract
The identification of genetic risk factors for non-syndromic oral clefts is of great importance for better understanding the biological processes related to this heterogeneous and complex group of diseases. Herein we applied whole-exome sequencing to identify potential variants related to non-syndromic cleft palate only (NSCPO) in the multiethnic Brazilian population. Thirty NSCPO samples and 30 sex- and genetic ancestry-matched healthy controls were pooled (3 pools with 10 samples for each group) and subjected to whole-exome sequencing. After filtering, the functional affects, individually and through interactions, of the selected variants and genes were assessed by bioinformatic analyses. As a group, 399 variants in 216 genes related to palatogenesis/cleft palate, corresponding to 6.43%, were exclusively identified in the NSCPO pools. Among those genes are 99 associated with syndromes displaying cleft palate in their clinical spectrum and 92 previously related to cleft lip palate. The most significantly biological processes and pathways overrepresented in the NSCPO-identified genes were associated with the folic acid metabolism, highlighting the interaction between LDL receptor-related protein 6 (LRP6) and 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR) that interconnect two large networks. This study yields novel data on characterization of specific variants and complex processes and pathways related to NSCPO, including many variants in genes of the folate/homocysteine pathway, and confirms that variants in genes related to syndromic cleft palate and cleft lip-palate may cause NSCPO.
Collapse
Affiliation(s)
- Renato Assis Machado
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP), Piracicaba, Brazil.,Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Hercílio Martelli-Junior
- Stomatology Clinic, School of Dental, State University of Montes Claros, Montes Claros, Brazil.,Center for Rehabilitation of Craniofacial Anomalies, School of Dental, UNIFENAS - Universidade José do Rosario Vellano, Alfenas, Brazil
| | | | | | - Rafaela Scariot
- Department of Oral and Maxillofacial Surgery, School of Health Science, Federal University of Paraná, Curitiba, Brazil
| | - Lucimara Teixeira das Neves
- Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil.,Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (FOB), Bauru, Brazil
| | - Ricardo D Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (FOP), Piracicaba, Brazil
| |
Collapse
|
26
|
Sundercombe SL, Berbic M, Evans CA, Cliffe C, Elakis G, Temple SEL, Selvanathan A, Ewans L, Quayum N, Nixon CY, Dias KR, Lang S, Richards A, Goh S, Wilson M, Mowat D, Sachdev R, Sandaradura S, Walsh M, Farrar MA, Walsh R, Fletcher J, Kirk EP, Teunisse GM, Schofield D, Buckley MF, Zhu Y, Roscioli T. Clinically Responsive Genomic Analysis Pipelines: Elements to Improve Detection Rate and Efficiency. J Mol Diagn 2021; 23:894-905. [PMID: 33962052 DOI: 10.1016/j.jmoldx.2021.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 03/27/2021] [Accepted: 04/21/2021] [Indexed: 11/25/2022] Open
Abstract
Massively parallel sequencing has markedly improved mendelian diagnostic rates. This study assessed the effects of custom alterations to a diagnostic genomic bioinformatic pipeline in response to clinical need and derived practice recommendations relative to diagnostic rates and efficiency. The Genomic Annotation and Interpretation Application (GAIA) bioinformatics pipeline was designed to detect panel, exome, and genome sample integrity and prioritize gene variants in mendelian disorders. Reanalysis of selected negative cases was performed after improvements to the pipeline. GAIA improvements and their effect on sensitivity are described, including addition of a PubMed search for gene-disease associations not in the Online Mendelian Inheritance of Man database, inclusion of a process for calling low-quality variants (known as QPatch), and gene symbol nomenclature consistency checking. The new pipeline increased the diagnostic rate and reduced staff costs, resulting in a saving of US$844.34 per additional diagnosis. Recommendations for genomic analysis pipeline requirements are summarized. Clinically responsive bioinformatics pipeline improvements increase diagnostic sensitivity and increase cost-effectiveness.
Collapse
Affiliation(s)
| | - Marina Berbic
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; School of Women's and Children's Health, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Carey-Anne Evans
- Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
| | - Corrina Cliffe
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - George Elakis
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Suzanna E L Temple
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia
| | - Arthavan Selvanathan
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; Discipline of Child and Adolescent Health, The University of Sydney, New South Wales, Australia
| | - Lisa Ewans
- Department of Medical Genomics, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia; Central Clinical School, Sydney Medical School, The University of Sydney, New South Wales, Australia
| | - Nila Quayum
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Cheng-Yee Nixon
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
| | - Kerith-Rae Dias
- Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Sarah Lang
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Anna Richards
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Shuxiang Goh
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
| | - Meredith Wilson
- Department of Clinical Genetics, Children's Hospital at Westmead, Sydney, Westmead, New South Wales, Australia
| | - David Mowat
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia
| | - Rani Sachdev
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia
| | - Sarah Sandaradura
- Department of Clinical Genetics, Children's Hospital at Westmead, Sydney, Westmead, New South Wales, Australia
| | - Maie Walsh
- Genetic Medicine Department, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michelle A Farrar
- School of Women's and Children's Health, University of New South Wales Sydney, Kensington, New South Wales, Australia; Neurology Department, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia
| | - Rebecca Walsh
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Janice Fletcher
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Edwin P Kirk
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; School of Women's and Children's Health, University of New South Wales Sydney, Kensington, New South Wales, Australia; Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia
| | - Guus M Teunisse
- Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia
| | - Deborah Schofield
- Centre for Economic Impacts of Genomic Medicine, Macquarie Business School, Macquarie University, Macquarie Park, New South Wales, Australia
| | - Michael Francis Buckley
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Ying Zhu
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; Genetics of Learning Disability Service, Hunter Genetics, Waratah Newcastle, New South Wales, Australia
| | - Tony Roscioli
- NSW Health Pathology Randwick Genomics, Prince of Wales Hospital, Randwick, New South Wales, Australia; Neuroscience Research Australia (NeuRA), Randwick, New South Wales, Australia; Centre for Clinical Genetics, Sydney Children's Hospital, Sydney, Randwick, New South Wales, Australia.
| |
Collapse
|
27
|
Zhang W, Venkataraghavan S, Hetmanski JB, Leslie EJ, Marazita ML, Feingold E, Weinberg SM, Ruczinski I, Taub MA, Scott AF, Ray D, Beaty TH. Detecting Gene-Environment Interaction for Maternal Exposures Using Case-Parent Trios Ascertained Through a Case With Non-Syndromic Orofacial Cleft. Front Cell Dev Biol 2021; 9:621018. [PMID: 33937227 PMCID: PMC8085423 DOI: 10.3389/fcell.2021.621018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/15/2021] [Indexed: 12/13/2022] Open
Abstract
Two large studies of case-parent trios ascertained through a proband with a non-syndromic orofacial cleft (OFC, which includes cleft lip and palate, cleft lip alone, or cleft palate alone) were used to test for possible gene-environment (G × E) interaction between genome-wide markers (both observed and imputed) and self-reported maternal exposure to smoking, alcohol consumption, and multivitamin supplementation during pregnancy. The parent studies were as follows: GENEVA, which included 1,939 case-parent trios recruited largely through treatment centers in Europe, the United States, and Asia, and 1,443 case-parent trios from the Pittsburgh Orofacial Cleft Study (POFC) also ascertained through a proband with an OFC including three major racial/ethnic groups (European, Asian, and Latin American). Exposure rates to these environmental risk factors (maternal smoking, alcohol consumption, and multivitamin supplementation) varied across studies and among racial/ethnic groups, creating substantial differences in power to detect G × E interaction, but the trio design should minimize spurious results due to population stratification. The GENEVA and POFC studies were analyzed separately, and a meta-analysis was conducted across both studies to test for G × E interaction using the 2 df test of gene and G × E interaction and the 1 df test for G × E interaction alone. The 2 df test confirmed effects for several recognized risk genes, suggesting modest G × E effects. This analysis did reveal suggestive evidence for G × Vitamin interaction for CASP9 on 1p36 located about 3 Mb from PAX7, a recognized risk gene. Several regions gave suggestive evidence of G × E interaction in the 1 df test. For example, for G × Smoking interaction, the 1 df test suggested markers in MUSK on 9q31.3 from meta-analysis. Markers near SLCO3A1 also showed suggestive evidence in the 1 df test for G × Alcohol interaction, and rs41117 near RETREG1 (a.k.a. FAM134B) also gave suggestive significance in the meta-analysis of the 1 df test for G × Vitamin interaction. While it remains quite difficult to obtain definitive evidence for G × E interaction in genome-wide studies, perhaps due to small effect sizes of individual genes combined with low exposure rates, this analysis of two large case-parent trio studies argues for considering possible G × E interaction in any comprehensive study of complex and heterogeneous disorders such as OFC.
Collapse
Affiliation(s)
- Wanying Zhang
- Department of Epidemiology, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Sowmya Venkataraghavan
- Department of Epidemiology, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Jacqueline B. Hetmanski
- Department of Epidemiology, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Elizabeth J. Leslie
- Department of Human Genetics, School of Medicine, Emory University, Atlanta, GA, United States
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, School of Dental Medicine and Clinical and Translational Science, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Eleanor Feingold
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Seth M. Weinberg
- Center for Craniofacial and Dental Genetics, Department of Oral and Craniofacial Sciences, School of Dental Medicine and Clinical and Translational Science, School of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ingo Ruczinski
- Department of Biostatistics, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Margaret A. Taub
- Department of Biostatistics, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Alan F. Scott
- Department of Genetic Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Debashree Ray
- Department of Epidemiology, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| | - Terri H. Beaty
- Department of Epidemiology, School of Public Health, Johns Hopkins University, Baltimore, MD, United States
| |
Collapse
|
28
|
Identification of a Novel Variant of ARHGAP29 in a Chinese Family with Nonsyndromic Cleft Lip and Palate. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8790531. [PMID: 33150183 PMCID: PMC7603555 DOI: 10.1155/2020/8790531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/27/2020] [Accepted: 09/30/2020] [Indexed: 12/16/2022]
Abstract
Background Cleft lip with or without cleft palate (CL/P) is the most common facial birth defect, with a worldwide incidence of 1 in 700-1000 live births. CL/P can be divided into syndromic CL/P (SCL/P) and nonsyndromic CL/P (NSCL/P). Genetic factors are an important component to the etiology of NSCL/P. ARHGAP29, one of the NSCL/P disease-causing genes, mediates the cyclical regulation of small GTP binding proteins such as RhoA and plays an essential role in cellular shape, proliferation, and craniofacial development. Methods The present study investigated a Chinese family with NSCL/P and explored potential pathogenic variants using whole-exome sequencing (WES). Variants were screened and filtered through bioinformatic analysis and prediction of variant pathogenicity. Cosegregation was subsequently conducted. Results We identified a novel heterozygous missense variant of ARHGAP29 (c.2615C > T, p.A872V) in a Chinese pedigree with NSCL/P. Conclusion We detected the disease-causing variant in this NSCL/P family. Our identification expands the genetic spectrum of ARHGAP29 and contributes to novel approaches to the genetic diagnosis and counseling of CL/P families.
Collapse
|
29
|
Martinelli M, Palmieri A, Carinci F, Scapoli L. Non-syndromic Cleft Palate: An Overview on Human Genetic and Environmental Risk Factors. Front Cell Dev Biol 2020; 8:592271. [PMID: 33195260 PMCID: PMC7606870 DOI: 10.3389/fcell.2020.592271] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/28/2020] [Indexed: 12/27/2022] Open
Abstract
The epithelial and mesenchymal cells involved in early embryonic facial development are guided by complex regulatory mechanisms. Any factor perturbing the growth, approach and fusion of the frontonasal and maxillary processes could result in orofacial clefts that represent the most common craniofacial malformations in humans. The rarest and, probably for this reason, the least studied form of cleft involves only the secondary palate, which is posterior to the incisive foramen. The etiology of cleft palate only is multifactorial and involves both genetic and environmental risk factors. The intention of this review is to give the reader an overview of the efforts made by researchers to shed light on the underlying causes of this birth defect. Most of the scientific papers suggesting potential environmental and genetic causes of non-syndromic cleft palate are summarized in this review, including genome-wide association and gene–environment interaction studies.
Collapse
Affiliation(s)
- Marcella Martinelli
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Annalisa Palmieri
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| | - Francesco Carinci
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Luca Scapoli
- Department of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum - University of Bologna, Bologna, Italy
| |
Collapse
|
30
|
Yu Q, Deng Q, Fu F, Li R, Zhang W, Wan J, Yang X, Wang D, Li F, Wu S, Li J, Li D, Liao C. A novel splicing mutation of ARHGAP29 is associated with nonsyndromic cleft lip with or without cleft palate. J Matern Fetal Neonatal Med 2020; 35:2499-2506. [PMID: 32698641 DOI: 10.1080/14767058.2020.1786523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Nonsyndromic cleft lip with or without cleft palate (NSCL/P) is one of the most common birth defects, and occurs in approximately 1/700 live births worldwide. The correlation between the ABCA4-ARHGAP29 region and NSCL/P was first identified by genome-wide association studies (GWAS), but few reports have examined NSCL/P caused by ARHGAP29 mutations in the Chinese population. METHODS We performed chromosome microarray analysis (CMA) for two consecutive abnormal fetuses and whole exome sequencing (WES) for the family, including 3 patients and 2 normal family members, Sanger sequencing and RT-PCR were used to confirm the mutation. RESULTS We identified a novel splice donor mutation (ARHGAP29 c.1920 + 1G > A) in two consecutive NSCL/P fetuses, and the variant was inherited from the mother and grandfather. The mutation caused abnormal skipping of exon 17, and the mRNA level of ARHGAP29 was significantly decreased compared to the wild type. CONCLUSIONS In this study, we successfully diagnosed the genetic cause of NSCL/P in a family and first report that the c.1920 + 1G > A mutation in ARHGAP29 is associated with NSCL/P. Our study enriches the genetic landscape of NSCL/P, extends the mutation spectrum of ARHGAP29, and provides a new direction for the diagnosis of NSCL/P in patients and its prenatal diagnosis in fetuses.
Collapse
Affiliation(s)
- Qiuxia Yu
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Qiong Deng
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Fang Fu
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Ru Li
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Wenwen Zhang
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Junhui Wan
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Xin Yang
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Dan Wang
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Fucheng Li
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Shaoqing Wu
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Jian Li
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Dongzhi Li
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| | - Can Liao
- Department of Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, P. R. China
| |
Collapse
|
31
|
Hall EG, Wenger LW, Wilson NR, Undurty-Akella SS, Standley J, Augustine-Akpan EA, Kousa YA, Acevedo DS, Goering JP, Pitstick L, Natsume N, Paroya SM, Busch TD, Ito M, Mori A, Imura H, Schultz-Rogers LE, Klee EW, Babovic-Vuksanovic D, Kroc SA, Adeyemo WL, Eshete MA, Bjork BC, Suzuki S, Murray JC, Schutte BC, Butali A, Saadi I. SPECC1L regulates palate development downstream of IRF6. Hum Mol Genet 2020; 29:845-858. [PMID: 31943082 PMCID: PMC7104672 DOI: 10.1093/hmg/ddaa002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 12/13/2019] [Accepted: 01/02/2020] [Indexed: 12/23/2022] Open
Abstract
SPECC1L mutations have been identified in patients with rare atypical orofacial clefts and with syndromic cleft lip and/or palate (CL/P). These mutations cluster in the second coiled-coil and calponin homology domains of SPECC1L and severely affect the ability of SPECC1L to associate with microtubules. We previously showed that gene-trap knockout of Specc1l in mouse results in early embryonic lethality. We now present a truncation mutant mouse allele, Specc1lΔC510, that results in perinatal lethality. Specc1lΔC510/ΔC510 homozygotes showed abnormal palate rugae but did not show cleft palate. However, when crossed with a gene-trap allele, Specc1lcGT/ΔC510 compound heterozygotes showed a palate elevation delay with incompletely penetrant cleft palate. Specc1lcGT/ΔC510 embryos exhibit transient oral epithelial adhesions at E13.5, which may delay shelf elevation. Consistent with oral adhesions, we show periderm layer abnormalities, including ectopic apical expression of adherens junction markers, similar to Irf6 hypomorphic mutants and Arhgap29 heterozygotes. Indeed, SPECC1L expression is drastically reduced in Irf6 mutant palatal shelves. Finally, we wanted to determine if SPECC1L deficiency also contributed to non-syndromic (ns) CL/P. We sequenced 62 Caucasian, 89 Filipino, 90 Ethiopian, 90 Nigerian and 95 Japanese patients with nsCL/P and identified three rare coding variants (p.Ala86Thr, p.Met91Iso and p.Arg546Gln) in six individuals. These variants reside outside of SPECC1L coiled-coil domains and result in milder functional defects than variants associated with syndromic clefting. Together, our data indicate that palate elevation is sensitive to deficiency of SPECC1L dosage and function and that SPECC1L cytoskeletal protein functions downstream of IRF6 in palatogenesis.
Collapse
Affiliation(s)
- Everett G Hall
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Luke W Wenger
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Nathan R Wilson
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Sraavya S Undurty-Akella
- Department of Pediatrics, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, IA 52242, USA
| | - Jennifer Standley
- Department of Pediatrics, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, IA 52242, USA
| | - Eno-Abasi Augustine-Akpan
- Department of Oral Pathology, Radiology and Medicine/Dow Institute for Dental Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA
| | - Youssef A Kousa
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
| | - Diana S Acevedo
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jeremy P Goering
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Lenore Pitstick
- Department of Biochemistry, Midwestern University, Downers Grove, IL 60515, USA
| | - Nagato Natsume
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, Aichi Gakuin University Hospital, 2-11 Suemori-Dori, Nagoya, Chikusa-ku, Japan
| | - Shahnawaz M Paroya
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Tamara D Busch
- Department of Pediatrics, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, IA 52242, USA
| | - Masaaki Ito
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, Aichi Gakuin University Hospital, 2-11 Suemori-Dori, Nagoya, Chikusa-ku, Japan
| | - Akihiro Mori
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, Aichi Gakuin University Hospital, 2-11 Suemori-Dori, Nagoya, Chikusa-ku, Japan
| | - Hideto Imura
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, Aichi Gakuin University Hospital, 2-11 Suemori-Dori, Nagoya, Chikusa-ku, Japan
| | | | - Eric W Klee
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Sarah A Kroc
- Department of Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, College of Medicine, University of Lagos, Lagos, PMB 12003, Nigeria
| | - Mekonen A Eshete
- Department of Plastic and Reconstructive Surgery, Addis Ababa University, Addis Ababa, PO Box 26493, Ethiopia
| | - Bryan C Bjork
- Department of Biochemistry, Midwestern University, Downers Grove, IL 60515, USA
| | - Satoshi Suzuki
- Department of Pediatrics, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, IA 52242, USA
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, Aichi Gakuin University Hospital, 2-11 Suemori-Dori, Nagoya, Chikusa-ku, Japan
| | - Jeffrey C Murray
- Department of Pediatrics, Craniofacial Anomalies Research Center, University of Iowa, Iowa City, IA 52242, USA
| | - Brian C Schutte
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI 48824, USA
- Department of Pediatrics and Human Development, Michigan State University, East Lansing, MI 48824, USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine/Dow Institute for Dental Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA
| | - Irfan Saadi
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| |
Collapse
|
32
|
Demeer B, Revencu N, Helaers R, Gbaguidi C, Dakpe S, François G, Devauchelle B, Bayet B, Vikkula M. Likely Pathogenic Variants in One Third of Non-Syndromic Discontinuous Cleft Lip and Palate Patients. Genes (Basel) 2019; 10:genes10100833. [PMID: 31652620 PMCID: PMC6826364 DOI: 10.3390/genes10100833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/14/2019] [Accepted: 10/19/2019] [Indexed: 12/19/2022] Open
Abstract
Oral clefts are composed of cleft of the lip, cleft of the lip and palate, or cleft of the palate, and they are associated with a wide range of expression and severity. When cleft of the palate is associated with cleft of the lip with preservation of the primary palate, it defines an atypical phenotype called discontinuous cleft. Although this phenotype may represent 5% of clefts of the lip and/or palate (CLP), it is rarely specifically referred to and its pathophysiology is unknown. We conducted whole exome sequencing (WES) and apply a candidate gene approach to non-syndromic discontinuous CLP individuals in order to identify genes and deleterious variants that could underlie this phenotype. We discovered loss-of-function variants in two out of the seven individuals, implicating FGFR1 and DLG1 genes, which represents almost one third of this cohort. Whole exome sequencing of clinically well-defined subgroups of CLP, such as discontinuous cleft, is a relevant approach to study CLP etiopathogenesis. It could facilitate more accurate clinical, epidemiological and fundamental research, ultimately resulting in better diagnosis and care of CLP patients. Non-syndromic discontinuous cleft lip and palate seems to have a strong genetic basis.
Collapse
Affiliation(s)
- Bénédicte Demeer
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium.
- Center for Human Genetics, CLAD Nord de France, CHU Amiens-Picardie, 80054 Amiens, France.
- Université Picardie Jules Verne, EA CHIMERE, EA 7516, 80054 Amiens, France.
- Facing Faces Institute, 80054 Amiens, France.
| | - Nicole Revencu
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium.
- Center for Human Genetics, Cliniques universitaires Saint-Luc, University of Louvain, 1200 Brussels, Belgium.
| | - Raphael Helaers
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium.
| | - Cica Gbaguidi
- Department of Maxillofacial Surgery and Stomatology, Centre de Compétence Fentes et Malformations Faciales (MAFACE), CHU Amiens-Picardie, 80054 Amiens, France.
| | - Stéphanie Dakpe
- Université Picardie Jules Verne, EA CHIMERE, EA 7516, 80054 Amiens, France.
- Facing Faces Institute, 80054 Amiens, France.
- Department of Maxillofacial Surgery and Stomatology, Centre de Compétence Fentes et Malformations Faciales (MAFACE), CHU Amiens-Picardie, 80054 Amiens, France.
| | - Geneviève François
- Department of Pediatrics, Cliniques Universitaires Saint-Luc, University of Louvain, 1200 Brussels, Belgium.
| | - Bernard Devauchelle
- Université Picardie Jules Verne, EA CHIMERE, EA 7516, 80054 Amiens, France.
- Facing Faces Institute, 80054 Amiens, France.
- Department of Maxillofacial Surgery and Stomatology, Centre de Compétence Fentes et Malformations Faciales (MAFACE), CHU Amiens-Picardie, 80054 Amiens, France.
| | - Bénédicte Bayet
- Centre Labiopalatin, Division of Plastic Surgery, Cliniques Universitaires Saint-Luc, University of Louvain, 1200 Brussels, Belgium.
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, University of Louvain, 1200 Brussels, Belgium.
| |
Collapse
|
33
|
Carlson JC, Anand D, Butali A, Buxo CJ, Christensen K, Deleyiannis F, Hecht JT, Moreno LM, Orioli IM, Padilla C, Shaffer JR, Vieira AR, Wehby GL, Weinberg SM, Murray JC, Beaty TH, Saadi I, Lachke SA, Marazita ML, Feingold E, Leslie EJ. A systematic genetic analysis and visualization of phenotypic heterogeneity among orofacial cleft GWAS signals. Genet Epidemiol 2019; 43:704-716. [PMID: 31172578 PMCID: PMC6687557 DOI: 10.1002/gepi.22214] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 03/29/2019] [Accepted: 04/17/2019] [Indexed: 12/17/2022]
Abstract
Phenotypic heterogeneity is a hallmark of complex traits, and genetic studies of such traits may focus on them as a single diagnostic entity or by analyzing specific components. For example, in orofacial clefting (OFC), three subtypes-cleft lip (CL), cleft lip and palate (CLP), and cleft palate (CP) have been studied separately and in combination. To further dissect the genetic architecture of OFCs and how a given associated locus may be contributing to distinct subtypes of a trait we developed a framework for quantifying and interpreting evidence of subtype-specific or shared genetic effects in complex traits. We applied this technique to create a "cleft map" of the association of 30 genetic loci with three OFC subtypes. In addition to new associations, we found loci with subtype-specific effects (e.g., GRHL3 [CP], WNT5A [CLP]), as well as loci associated with two or all three subtypes. We cross-referenced these results with mouse craniofacial gene expression datasets, which identified additional promising candidate genes. However, we found no strong correlation between OFC subtypes and expression patterns. In aggregate, the cleft map revealed that neither subtype-specific nor shared genetic effects operate in isolation in OFC architecture. Our approach can be easily applied to any complex trait with distinct phenotypic subgroups.
Collapse
Affiliation(s)
- Jenna C. Carlson
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE 19716 USA
| | - Azeez Butali
- Department of Oral Pathology, Radiology and Medicine, University of Iowa, IA 52242, USA
| | - Carmen J. Buxo
- Dental and Craniofacial Genomics Core, School of Dental Medicine, University of Puerto Rico, San Juan, Puerto Rico, 00936, USA
| | - Kaare Christensen
- Department of Epidemiology, Institute of Public Health, University of Southern Denmark, Odense, DK-5230, Denmark
| | | | - Jacqueline T. Hecht
- Department of Pediatrics, McGovern Medical School and School of Dentistry UT Health at Houston, Houston, TX, 77030, USA
| | - Lina M. Moreno
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IA, 52242, USA
| | - Ieda M. Orioli
- INAGEMP (National Institute of Population Medical Genetics), Porto Alegre, 91501-970, Brazil
- ECLAMC (Latin American Collaborative Study of Congenital Malformations) at Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Carmencita Padilla
- Department of Pediatrics, College of Medicine; Institute of Human Genetics, National Institutes of Health; University of the Philippines Manila, Manila, 1000, The Philippines
- Philippine Genome Center, University of the Philippines System, Quezon City, 1101, The Philippines
| | - John R. Shaffer
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh PA,15219, USA
| | - Alexandre R. Vieira
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh PA,15219, USA
| | - George L. Wehby
- Department of Health Management and Policy, College of Public Health, University of Iowa, Iowa City, IA, 52242, USA
| | - Seth M. Weinberg
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh PA,15219, USA
- Center for Craniofacial and Dental Genetics, School of Dental Medicine, and Clinical and Translational Science, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Jeffrey C. Murray
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, Iowa,52242, USA
| | - Terri H. Beaty
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore MD, 21205, USA
| | - Irfan Saadi
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160 USA
| | - Salil A. Lachke
- Department of Biological Sciences, University of Delaware, Newark, DE 19716 USA
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE 19716 USA
| | - Mary L. Marazita
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh PA,15219, USA
- Center for Craniofacial and Dental Genetics, School of Dental Medicine, and Clinical and Translational Science, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Eleanor Feingold
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Center for Craniofacial and Dental Genetics, School of Dental Medicine, and Clinical and Translational Science, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA
| | - Elizabeth J. Leslie
- Department of Human Genetics, Emory University School of Medicine, Emory University, Atlanta, GA, 30322, USA
| |
Collapse
|
34
|
Kakrana A, Yang A, Anand D, Djordjevic D, Ramachandruni D, Singh A, Huang H, Ho JWK, Lachke SA. iSyTE 2.0: a database for expression-based gene discovery in the eye. Nucleic Acids Res 2019; 46:D875-D885. [PMID: 29036527 PMCID: PMC5753381 DOI: 10.1093/nar/gkx837] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 09/11/2017] [Indexed: 12/20/2022] Open
Abstract
Although successful in identifying new cataract-linked genes, the previous version of the database iSyTE (integrated Systems Tool for Eye gene discovery) was based on expression information on just three mouse lens stages and was functionally limited to visualization by only UCSC-Genome Browser tracks. To increase its efficacy, here we provide an enhanced iSyTE version 2.0 (URL: http://research.bioinformatics.udel.edu/iSyTE) based on well-curated, comprehensive genome-level lens expression data as a one-stop portal for the effective visualization and analysis of candidate genes in lens development and disease. iSyTE 2.0 includes all publicly available lens Affymetrix and Illumina microarray datasets representing a broad range of embryonic and postnatal stages from wild-type and specific gene-perturbation mouse mutants with eye defects. Further, we developed a new user-friendly web interface for direct access and cogent visualization of the curated expression data, which supports convenient searches and a range of downstream analyses. The utility of these new iSyTE 2.0 features is illustrated through examples of established genes associated with lens development and pathobiology, which serve as tutorials for its application by the end-user. iSyTE 2.0 will facilitate the prioritization of eye development and disease-linked candidate genes in studies involving transcriptomics or next-generation sequencing data, linkage analysis and GWAS approaches.
Collapse
Affiliation(s)
- Atul Kakrana
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE 19711, USA
| | - Andrian Yang
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia.,St. Vincent's Clinical School, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Djordje Djordjevic
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia.,St. Vincent's Clinical School, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Deepti Ramachandruni
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| | - Abhyudai Singh
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE 19711, USA.,Department of Electrical Engineering, University of Delaware, Newark, DE 19716, USA
| | - Hongzhan Huang
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE 19711, USA
| | - Joshua W K Ho
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia.,St. Vincent's Clinical School, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Salil A Lachke
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE 19711, USA.,Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
| |
Collapse
|
35
|
Cox TC, Lidral AC, McCoy JC, Liu H, Cox LL, Zhu Y, Anderson RD, Moreno Uribe LM, Anand D, Deng M, Richter CT, Nidey NL, Standley JM, Blue EE, Chong JX, Smith JD, Kirk EP, Venselaar H, Krahn KN, van Bokhoven H, Zhou H, Cornell RA, Glass IA, Bamshad MJ, Nickerson DA, Murray JC, Lachke SA, Thompson TB, Buckley MF, Roscioli T. Mutations in GDF11 and the extracellular antagonist, Follistatin, as a likely cause of Mendelian forms of orofacial clefting in humans. Hum Mutat 2019; 40:1813-1825. [PMID: 31215115 DOI: 10.1002/humu.23793] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 05/02/2019] [Accepted: 05/09/2019] [Indexed: 12/30/2022]
Abstract
Cleft lip with or without cleft palate (CL/P) is generally viewed as a complex trait with multiple genetic and environmental contributions. In 70% of cases, CL/P presents as an isolated feature and/or deemed nonsyndromic. In the remaining 30%, CL/P is associated with multisystem phenotypes or clinically recognizable syndromes, many with a monogenic basis. Here we report the identification, via exome sequencing, of likely pathogenic variants in two genes that encode interacting proteins previously only linked to orofacial clefting in mouse models. A variant in GDF11 (encoding growth differentiation factor 11), predicting a p.(Arg298Gln) substitution at the Furin protease cleavage site, was identified in one family that segregated with CL/P and both rib and vertebral hypersegmentation, mirroring that seen in Gdf11 knockout mice. In the second family in which CL/P was the only phenotype, a mutation in FST (encoding the GDF11 antagonist, Follistatin) was identified that is predicted to result in a p.(Cys56Tyr) substitution in the region that binds GDF11. Functional assays demonstrated a significant impact of the specific mutated amino acids on FST and GDF11 function and, together with embryonic expression data, provide strong evidence for the importance of GDF11 and Follistatin in the regulation of human orofacial development.
Collapse
Affiliation(s)
- Timothy C Cox
- Division of Craniofacial Medicine, Department of Pediatrics, University of Washington, Seattle, Washington.,Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, Washington.,Department of Oral & Craniofacial Science, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri
| | | | - Jason C McCoy
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, Ohio
| | - Huan Liu
- Department of Anatomy and Cell Biology and Anatomy, University of Iowa, Iowa City, Iowa
| | - Liza L Cox
- Division of Craniofacial Medicine, Department of Pediatrics, University of Washington, Seattle, Washington.,Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, Washington.,Department of Oral & Craniofacial Science, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri.,Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ying Zhu
- New South Wales Health Pathology, Prince of Wales Hospital, Randwick, New South Wales, Australia.,Genetics of Learning Disability Service, Hunter Genetics, Waratah, New South Wales, Australia
| | - Ryan D Anderson
- Department of Oral & Craniofacial Science, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri
| | - Lina M Moreno Uribe
- Department of Orthodontics & the Iowa Institute for Oral Health Research, University of Iowa, Iowa City, Iowa
| | - Deepti Anand
- Department of Biological Sciences, University of Delaware, Newark, Delaware
| | - Mei Deng
- Birth Defects Research Laboratory, University of Washington, Seattle, Washington
| | - Chika T Richter
- Department of Orthodontics & the Iowa Institute for Oral Health Research, University of Iowa, Iowa City, Iowa
| | - Nichole L Nidey
- Department of Pediatrics, University of Iowa, Iowa City, Iowa
| | | | - Elizabeth E Blue
- Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, Washington
| | - Jessica X Chong
- Division of Genetic Medicine, Department of Pediatrics, University of Washington, Seattle, Washington
| | - Joshua D Smith
- Department of Genome Sciences, University of Washington, Seattle, Washington
| | - Edwin P Kirk
- New South Wales Health Pathology, Prince of Wales Hospital, Randwick, New South Wales, Australia.,Centre for Clinical Genetics, Sydney Children's Hospital, New South Wales, Australia
| | - Hanka Venselaar
- Centre for Molecular and Biomolecular Informatics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Katy N Krahn
- UVA Center for Advanced Medical Analytics, School of Medicine, University of Virginia, Charlottesville, Virginia
| | - Hans van Bokhoven
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Huiqing Zhou
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands.,Department of Molecular Developmental Biology, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - Robert A Cornell
- Department of Anatomy and Cell Biology and Anatomy, University of Iowa, Iowa City, Iowa
| | - Ian A Glass
- Birth Defects Research Laboratory, University of Washington, Seattle, Washington.,Division of Genetic Medicine, Department of Pediatrics, University of Washington, Seattle, Washington
| | - Michael J Bamshad
- Division of Genetic Medicine, Department of Pediatrics, University of Washington, Seattle, Washington.,Department of Genome Sciences, University of Washington, Seattle, Washington
| | - Deborah A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, Washington
| | | | - Salil A Lachke
- Department of Biological Sciences, University of Delaware, Newark, Delaware
| | - Thomas B Thompson
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Cincinnati, Ohio
| | - Michael F Buckley
- New South Wales Health Pathology, Prince of Wales Hospital, Randwick, New South Wales, Australia
| | - Tony Roscioli
- New South Wales Health Pathology, Prince of Wales Hospital, Randwick, New South Wales, Australia.,Centre for Clinical Genetics, Sydney Children's Hospital, New South Wales, Australia.,Prince of Wales Clinical School, University of New South Wales, Randwick, New South Wales, Australia.,Neuroscience Research Australia (NeuRA), University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
36
|
Screening for ARHGAP29 gene variants in Turkish paediatric patients with non-syndromic cleft lip with or without cleft palate. Meta Gene 2019. [DOI: 10.1016/j.mgene.2019.100566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
37
|
Leinhos L, Peters J, Krull S, Helbig L, Vogler M, Levay M, van Belle GJ, Ridley AJ, Lutz S, Katschinski DM, Zieseniss A. Hypoxia suppresses myofibroblast differentiation by changing RhoA activity. J Cell Sci 2019; 132:jcs223230. [PMID: 30659117 DOI: 10.1242/jcs.223230] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 01/09/2019] [Indexed: 12/15/2022] Open
Abstract
Fibroblasts show a high range of phenotypic plasticity, including transdifferentiation into myofibroblasts. Myofibroblasts are responsible for generation of the contraction forces that are important for wound healing and scar formation. Overactive myofibroblasts, by contrast, are involved in abnormal scarring. Cell stretching and extracellular signals such as transforming growth factor β can induce the myofibroblastic program, whereas microenvironmental conditions such as reduced tissue oxygenation have an inhibitory effect. We investigated the effects of hypoxia on myofibroblastic properties and linked this to RhoA activity. Hypoxia reversed the myofibroblastic phenotype of primary fibroblasts. This was accompanied by decreased αSMA (ACTA2) expression, alterations in cell contractility, actin reorganization and RhoA activity. We identified a hypoxia-inducible induction of ARHGAP29, which is critically involved in myocardin-related transcription factor-A (MRTF-A) signaling, the differentiation state of myofibroblasts and modulates RhoA activity. This novel link between hypoxia and MRTF-A signaling is likely to be important for ischemia-induced tissue remodeling and the fibrotic response.This article has an associated First Person interview with the first author of the paper.
Collapse
Affiliation(s)
- Lisa Leinhos
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Johannes Peters
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Sabine Krull
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Lena Helbig
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Melanie Vogler
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Magdolna Levay
- Experimental Pharmacology, European Center of Angioscience, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Gijsbert J van Belle
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Anne J Ridley
- Randall Centre of Cell and Molecular Biophysics, King's College London, London SE1 1UL, UK
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Susanne Lutz
- Institute of Pharmacology and Toxicology, University Medical Center, Georg-August University Göttingen, 37075 Göttingen, Germany
| | - Dörthe M Katschinski
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| | - Anke Zieseniss
- Institute of Cardiovascular Physiology, University Medical Center, Georg-August University Göttingen, 37073 Göttingen, Germany
| |
Collapse
|
38
|
Mutations in the Epithelial Cadherin-p120-Catenin Complex Cause Mendelian Non-Syndromic Cleft Lip with or without Cleft Palate. Am J Hum Genet 2018; 102:1143-1157. [PMID: 29805042 DOI: 10.1016/j.ajhg.2018.04.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/17/2018] [Indexed: 12/18/2022] Open
Abstract
Non-syndromic cleft lip with or without cleft palate (NS-CL/P) is one of the most common human birth defects and is generally considered a complex trait. Despite numerous loci identified by genome-wide association studies, the effect sizes of common variants are relatively small, with much of the presumed genetic contribution remaining elusive. We report exome-sequencing results in 209 people from 72 multi-affected families with pedigree structures consistent with autosomal-dominant inheritance and variable penetrance. Herein, pathogenic variants are described in four genes encoding components of the p120-catenin complex (CTNND1, PLEKHA7, PLEKHA5) and an epithelial splicing regulator (ESRP2), in addition to the known CL/P-associated gene, CDH1, which encodes E-cadherin. The findings were also validated in a second cohort of 497 people with NS-CL/P, comprising small families and singletons with pathogenic variants in these genes identified in 14% of multi-affected families and 2% of the replication cohort of smaller families. Enriched expression of each gene/protein in human and mouse embryonic oro-palatal epithelia, demonstration of functional impact of CTNND1 and ESRP2 variants, and recapitulation of the CL/P spectrum in Ctnnd1 knockout mice support a causative role in CL/P pathogenesis. These data show that primary defects in regulators of epithelial cell adhesion are the most significant contributors to NS-CL/P identified to date and that inherited and de novo single gene variants explain a substantial proportion of NS-CL/P.
Collapse
|
39
|
Duncan KM, Mukherjee K, Cornell RA, Liao EC. Zebrafish models of orofacial clefts. Dev Dyn 2017; 246:897-914. [PMID: 28795449 DOI: 10.1002/dvdy.24566] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/06/2017] [Accepted: 07/31/2017] [Indexed: 12/12/2022] Open
Abstract
Zebrafish is a model organism that affords experimental advantages toward investigating the normal function of genes associated with congenital birth defects. Here we summarize zebrafish studies of genes implicated in orofacial cleft (OFC). The most common use of zebrafish in this context has been to explore the normal function an OFC-associated gene product in craniofacial morphogenesis by inhibiting expression of its zebrafish ortholog. The most frequently deployed method has been to inject embryos with antisense morpholino oligonucleotides targeting the desired transcript. However, improvements in targeted mutagenesis strategies have led to widespread adoption of CRISPR/Cas9 technology. A second application of zebrafish has been for functional assays of gene variants found in OFC patients; such in vivo assays are valuable because the success of in silico methods for testing allele severity has been mixed. Finally, zebrafish have been used to test the tissue specificity of enhancers that harbor single nucleotide polymorphisms associated with risk for OFC. We review examples of each of these approaches in the context of genes that are implicated in syndromic and non-syndromic OFC. Developmental Dynamics 246:897-914, 2017. © 2017 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Kaylia M Duncan
- Department of Anatomy and Cell Biology, Molecular and Cell Biology Graduate Program, University of Iowa, Iowa City, Iowa
| | - Kusumika Mukherjee
- Center for Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Robert A Cornell
- Department of Anatomy and Cell Biology, Molecular and Cell Biology Graduate Program, University of Iowa, Iowa City, Iowa
| | - Eric C Liao
- Center for Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
40
|
Hoebel AK, Drichel D, van de Vorst M, Böhmer AC, Sivalingam S, Ishorst N, Klamt J, Gölz L, Alblas M, Maaser A, Keppler K, Zink AM, Dixon MJ, Dixon J, Hemprich A, Kruse T, Graf I, Dunsche A, Schmidt G, Daratsianos N, Nowak S, Aldhorae KA, Nöthen MM, Knapp M, Thiele H, Gilissen C, Reutter H, Hoischen A, Mangold E, Ludwig KU. Candidate Genes for Nonsyndromic Cleft Palate Detected by Exome Sequencing. J Dent Res 2017; 96:1314-1321. [PMID: 28767323 DOI: 10.1177/0022034517722761] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Nonsyndromic cleft palate only (nsCPO) is a facial malformation that has a livebirth prevalence of 1 in 2,500. Research suggests that the etiology of nsCPO is multifactorial, with a clear genetic component. To date, genome-wide association studies have identified only 1 conclusive common variant for nsCPO, that is, a missense variant in the gene grainyhead-like-3 ( GRHL3). Thus, the underlying genetic causes of nsCPO remain largely unknown. The present study aimed at identifying rare variants that might contribute to nsCPO risk, via whole-exome sequencing (WES), in multiply affected Central European nsCPO pedigrees. WES was performed in 2 affected first-degree relatives from each family. Variants shared between both individuals were analyzed for their potential deleterious nature and a low frequency in the general population. Genes carrying promising variants were annotated for 1) reported associations with facial development, 2) multiple occurrence of variants, and 3) expression in mouse embryonic palatal shelves. This strategy resulted in the identification of a set of 26 candidate genes that were resequenced in 132 independent nsCPO cases and 623 independent controls of 2 different ethnicities, using molecular inversion probes. No rare loss-of-function mutation was identified in either WES or resequencing step. However, we identified 2 or more missense variants predicted to be deleterious in each of 3 genes ( ACACB, PTPRS, MIB1) in individuals from independent families. In addition, the analyses identified a novel variant in GRHL3 in 1 patient and a variant in CREBBP in 2 siblings. Both genes underlie different syndromic forms of CPO. A plausible hypothesis is that the apparently nonsyndromic clefts in these 3 patients might represent hypomorphic forms of the respective syndromes. In summary, the present study identified rare variants that might contribute to nsCPO risk and suggests candidate genes for further investigation.
Collapse
Affiliation(s)
- A K Hoebel
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - D Drichel
- 3 German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.,4 Cologne Center for Genomics, Department of Statistical Genetics and Bioinformatics, University of Cologne, Cologne, Germany
| | - M van de Vorst
- 5 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - A C Böhmer
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - S Sivalingam
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - N Ishorst
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - J Klamt
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - L Gölz
- 6 Department of Orthodontics, University of Bonn, Bonn, Germany
| | - M Alblas
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - A Maaser
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - K Keppler
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - A M Zink
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - M J Dixon
- 7 Faculty of Biology, Medicine & Health, University of Manchester, Manchester, UK
| | - J Dixon
- 7 Faculty of Biology, Medicine & Health, University of Manchester, Manchester, UK
| | - A Hemprich
- 8 Department of Oral and Maxillo-Facial Surgery, University of Leipzig, Leipzig, Germany
| | - T Kruse
- 9 Department of Orthodontics, University of Cologne, Cologne, Germany
| | - I Graf
- 9 Department of Orthodontics, University of Cologne, Cologne, Germany
| | - A Dunsche
- 10 Clinics Karlsruhe, Department of Oral and Maxillo-Facial Surgery, Karlsruhe, Germany
| | - G Schmidt
- 11 Department of Cleft Lip and Cleft Palate Surgery, Humboldt University of Berlin, Berlin, Germany
| | - N Daratsianos
- 6 Department of Orthodontics, University of Bonn, Bonn, Germany
| | - S Nowak
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - K A Aldhorae
- 12 Department of Orthodontics, College of Dentistry, Dhamar University, Dhamar, Yemen
| | - M M Nöthen
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - M Knapp
- 13 Institute of Medical Biometry, Informatics and Epidemiology, University of Bonn, Bonn, Germany
| | - H Thiele
- 14 Cologne Center for Genomics, University of Cologne, Cologne, Germany
| | - C Gilissen
- 5 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - H Reutter
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,15 Department of Neonatology &Pediatric Intensive Care, Children's Hospital, University of Bonn, Bonn, Germany
| | - A Hoischen
- 5 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,16 Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.,17 Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - E Mangold
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany
| | - K U Ludwig
- 1 Institute of Human Genetics, University of Bonn, Bonn, Germany.,2 Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| |
Collapse
|
41
|
Liu H, Leslie EJ, Carlson JC, Beaty TH, Marazita ML, Lidral AC, Cornell RA. Identification of common non-coding variants at 1p22 that are functional for non-syndromic orofacial clefting. Nat Commun 2017; 8:14759. [PMID: 28287101 PMCID: PMC5355807 DOI: 10.1038/ncomms14759] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/30/2017] [Indexed: 01/29/2023] Open
Abstract
Genome-wide association studies (GWAS) do not distinguish between single nucleotide polymorphisms (SNPs) that are causal and those that are merely in linkage-disequilibrium with causal mutations. Here we describe a versatile, functional pipeline and apply it to SNPs at 1p22, a locus identified in several GWAS for non-syndromic cleft lip with or without cleft palate (NS CL/P). First we amplified DNA elements containing the ten most-highly risk-associated SNPs and tested their enhancer activity in vitro, identifying three SNPs with allele-dependent effects on such activity. We then used in vivo reporter assays to test the tissue-specificity of these enhancers, chromatin configuration capture to test enhancer-promoter interactions, and genome editing in vitro to show allele-specific effects on ARHGAP29 expression and cell migration. Our results further indicate that two SNPs affect binding of CL/P-associated transcription factors, and one affects chromatin configuration. These results translate risk into potential mechanisms of pathogenesis.
Collapse
Affiliation(s)
- Huan Liu
- Department of Anatomy and Cell Biology, College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430079, China
| | - Elizabeth J. Leslie
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, USA
| | - Jenna C. Carlson
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Terri H. Beaty
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, USA
| | - Mary L. Marazita
- Center for Craniofacial and Dental Genetics, Department of Oral Biology, School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, USA
- Department of Human Genetics, Graduate School of Public Health and Clinical and Translational Science Institute, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, USA
| | - Andrew C. Lidral
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, Iowa 52246, USA
| | - Robert A. Cornell
- Department of Anatomy and Cell Biology, College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
| |
Collapse
|
42
|
Adeyemo WL, Butali A. Genetics and genomics etiology of nonsyndromic orofacial clefts. Mol Genet Genomic Med 2017; 5:3-7. [PMID: 28116324 PMCID: PMC5241211 DOI: 10.1002/mgg3.272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Orofacial clefts (OFC) are complex birth defects. Studies using contemporary genomic techniques, bioinformatics, and statistical analyses have led to appreciable advances in identifying the causes of syndromic forms of clefts. This commentary gives an overview of the important cleft gene discoveries found using various genomic methods and tools.
![]()
Collapse
Affiliation(s)
- Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery College of Medicine University of Lagos Surulere Nigeria
| | - Azeez Butali
- Department of Oral Pathology, Radiology and MedicineCollege of DentistryUniversity of IowaIowa CityIowa; Iowa Institute of Oral Health ResearchCollege of DentistryUniversity of IowaIowa CityIowa
| |
Collapse
|