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Lee S, Ahn H, Kim H, Lee K, Kim S, Lee JH. Identification of potential key variants in mandibular premolar hypodontia through whole-exome sequencing. Front Genet 2023; 14:1248326. [PMID: 37745851 PMCID: PMC10514915 DOI: 10.3389/fgene.2023.1248326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/29/2023] [Indexed: 09/26/2023] Open
Abstract
Determining genotype-phenotype correlations in patients with hypodontia is important for understanding disease pathogenesis, although only a few studies have elucidated it. We aimed to identify genetic variants linked to non-syndromic bilateral mandibular second premolar hypodontia in a Korean population for the first time by specifying the phenotype of hypodontia. Twenty unrelated individuals with non-syndromic bilateral mandibular second premolar hypodontia were enrolled for whole-exome sequencing. Using a tooth agenesis gene set panel consisting of 112 genes based on literature, potential candidate variants were screened through variant filtering and prioritization. We identified 13 candidate variants in 12 genes, including a stop-gain variant (c.4750C>T) in LAMA3. Through the functional enrichment analysis of the prioritized genes, several terms related to tooth development were enriched in a protein-protein interaction network of candidate genes for mandibular premolar hypodontia. The hypodontia group also had approximately 2-fold as many mutated variants in all four genes related to these key terms, which are CDH1, ITGB4, LAMA3, LAMB3, as those in the 100 healthy control group individuals. The relationship between enriched terms and pathways and mandibular premolar hypodontia was also investigated. In addition, we identified some known oligodontia variants in patients with hypodontia, strengthening the possibility of synergistic effects in other genes. This genetic investigation may be a worthwhile preliminary attempt to reveal the pathogenesis of tooth agenesis and sets a background for future studies.
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Affiliation(s)
- Shinyeop Lee
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - Hyunsoo Ahn
- Graduate School of Artificial Intelligence, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Hyeonhye Kim
- Tufts University School of Medicine, Boston, MA, United States
| | - Kwanghwan Lee
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Sanguk Kim
- Graduate School of Artificial Intelligence, Pohang University of Science and Technology, Pohang, Republic of Korea
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Jae Hoon Lee
- Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Republic of Korea
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2
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Howe BJ, Pendleton C, Withanage MHH, Childs CA, Zeng E, van Wijk A, Hermus R, Padilla C, Hecht JT, Poletta FA, Orioli IM, Buxó-Martínez CJ, Deleyiannis F, Vieira AR, Butali A, Valencia-Ramirez C, Restrepo Muñeton C, Wehby GL, Weinberg SM, Marazita ML, Moreno Uribe LM, Xie XJ. Tooth Agenesis Patterns in Orofacial Clefting Using Tooth Agenesis Code: A Meta-Analysis. Dent J (Basel) 2022; 10:128. [PMID: 35877402 PMCID: PMC9323030 DOI: 10.3390/dj10070128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/14/2022] [Accepted: 06/30/2022] [Indexed: 12/10/2022] Open
Abstract
Individuals with orofacial clefting (OFC) have a higher prevalence of tooth agenesis (TA) overall. Neither the precise etiology of TA, nor whether TA occurs in patterns that differ by gender or cleft type is yet known. This meta-analysis aims to identify the spectrum of tooth agenesis patterns in subjects with non-syndromic OFC and controls using the Tooth Agenesis Code (TAC) program. An indexed search of databases (PubMed, EMBASE, and CINAHL) along with cross-referencing and hand searches were completed from May to June 2019 and re-run in February 2022. Additionally, unpublished TAC data from 914 individuals with OFC and 932 controls were included. TAC pattern frequencies per study were analyzed using a random effects meta-analysis model. A thorough review of 45 records retrieved resulted in 4 articles meeting eligibility criteria, comprising 2182 subjects with OFC and 3171 controls. No TA (0.0.0.0) was seen in 51% of OFC cases and 97% of controls. TAC patterns 0.2.0.0, 2.0.0.0, and 2.2.0.0 indicating uni- or bi-lateral missing upper laterals, and 16.0.0.0 indicating missing upper right second premolar, were more common in subjects with OFC. Subjects with OFC have unique TA patterns and defining these patterns will help increase our understanding of the complex etiology underlying TA.
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Affiliation(s)
- Brian J. Howe
- Department of Family Dentistry, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
| | - Chandler Pendleton
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
| | - Miyuraj Harishchandra Hikkaduwa Withanage
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
| | | | - Erliang Zeng
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| | - Arjen van Wijk
- Department of Social Dentistry and Behavioral Sciences, ACTA, 1012 WX Amsterdam, The Netherlands;
| | - Ruurd Hermus
- Orthopraktijk Capelle, 2904 EP Capelle aan den IJssel, The Netherlands;
| | - Carmencita Padilla
- Department of Pediatrics, College of Medicine, University of the Philippines, Manila 1000, Philippines;
| | - Jacqueline T. Hecht
- Department of Pediatrics, University of Texas Health Science Center at Houston, Houston, TX 77030, USA;
| | - Fernando A. Poletta
- ECLAMC at Center for Medical Education and Clinical Research, CEMIC-CONICET, Buenos Aires 4102, Argentina;
| | - Iêda M. Orioli
- ECLAMC at Department of Genetics, Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil;
| | - Carmen J. Buxó-Martínez
- Dental and Craniofacial Genomics Core, School of Dental Medicine, University of Puerto Rico, San Juan 00925, Puerto Rico;
| | | | - Alexandre R. Vieira
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA; (A.R.V.); (S.M.W.); (M.L.M.)
| | - Azeez Butali
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
- Department of Oral Pathology, Radiology, and Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Consuelo Valencia-Ramirez
- Clinica Noel, Calle 14 No43B 146, Poblado Barrio Manila, Medellin 050034, Colombia; (C.V.-R.); (C.R.M.)
| | - Claudia Restrepo Muñeton
- Clinica Noel, Calle 14 No43B 146, Poblado Barrio Manila, Medellin 050034, Colombia; (C.V.-R.); (C.R.M.)
| | - 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 Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA; (A.R.V.); (S.M.W.); (M.L.M.)
| | - Mary L. Marazita
- Department of Oral and Craniofacial Sciences, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA; (A.R.V.); (S.M.W.); (M.L.M.)
| | - Lina M. Moreno Uribe
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA
| | - Xian-Jin Xie
- The Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA 52242, USA; (C.P.); (M.H.H.W.); (E.Z.); (A.B.); (L.M.M.U.); (X.-J.X.)
- Department of Biostatistics, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
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3
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Baba R, Sato A, Arai K. Consecutive tooth agenesis patterns in non-syndromic oligodontia. Odontology 2021; 110:183-192. [PMID: 34236541 DOI: 10.1007/s10266-021-00634-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 06/29/2021] [Indexed: 10/20/2022]
Abstract
Agenesis of two or more consecutive adjacent permanent teeth (consecutive tooth agenesis, CTA) is a serious manifestation of oligodontia requiring long-term, multi-disciplinary treatment. Therefore, the present study investigated the characteristics of the CTA pattern in orthodontic patients with non-syndromic oligodontia. Using panoramic radiographs, the number of agenetic permanent teeth excluding third molars in non-syndromic orthodontic patients was evaluated, and patients with six or more agenetic teeth (oligodontia group, n = 97) and with one to five agenetic teeth (hypodontia group, n = 107) were selected. The numbers of CTA including third molars in each quadrant and in each patient were compared between the groups. Each quadrant with CTA of patients was categorized into one of the following four types: (I) involves anterior teeth only; (II) involves posterior teeth only; (IIIA) includes anterior and posterior teeth; and (IIIB) separate in the anterior and posterior teeth. CTA in at least one quadrant was found in 91.8 and 4.7% of patients in the oligodontia and hypodontia groups, respectively. The highest frequency CTA patterns included agenesis of the first and second premolars and of the second and third molars in the oligodontia and hypodontia groups, respectively. In the oligodontia group, type IIIA was significantly more frequent in the maxillary than in the mandibular quadrant. Most oligodontia patients who visit orthodontic clinics have CTA. A rare but severe CTA pattern that continues from the anterior to posterior segments is more frequent in the maxillary than in the mandibular quadrant.
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Affiliation(s)
- Ryuichi Baba
- Department of Orthodontics, School of Life Dentistry At Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Ayaka Sato
- Department of Orthodontics, School of Life Dentistry At Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Kazuhito Arai
- Department of Orthodontics, School of Life Dentistry At Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
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4
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Sato A, Arai K. Sexual dimorphism of tooth agenesis patterns in non-syndromic oligodontia in Japanese patients. Arch Oral Biol 2021; 124:105038. [PMID: 33515980 DOI: 10.1016/j.archoralbio.2021.105038] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/27/2020] [Accepted: 12/29/2020] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Wide individual variation observed in tooth agenesis patterns in patients with non-syndromic oligodontia could be affected by sexual dimorphism. Therefore, the present study investigated sex-associated differences in tooth agenesis patterns in patients with non-syndromic oligodontia. DESIGN Subjects were 108 male (ages 7-46 years) and 184 female (ages 7-43 years) orthodontic patients missing ≥6 permanent teeth, excluding third molars. The number of agenetic teeth per patient, excluding third molars, and the prevalence of agenesis of each tooth type were evaluated using panoramic radiographic images. Rankings of the most common tooth agenesis patterns in the maxillary and mandibular arches were calculated. The number of agenetic teeth per patient was compared between sexes using the Mann-Whitney test. The prevalence of tooth agenesis for each tooth type was compared between sexes using the χ2 and Fisher's exact tests with Bonferroni correction. RESULTS No significant sex difference in the distribution of the number of agenetic teeth was observed. The prevalence of agenesis of the maxillary second premolars was significantly higher in females (P < 0.007) and the prevalence of agenesis of the mandibular central incisors was significantly higher in males (P < 0.007). Sexual dimorphism was observed in the highly ranked tooth agenesis patterns. CONCLUSIONS No significant difference in the severity of tooth agenesis was observed between sexes; however, sexual dimorphism was observed in the tooth agenesis patterns of patients with non-syndromic oligodontia. Although various tooth agenesis patterns were identified, sex-specific tendencies suggest that categories can be utilized in future epidemiologic research and planning.
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Affiliation(s)
- Ayaka Sato
- Department of Orthodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
| | - Kazuhito Arai
- Department of Orthodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
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5
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Interdisciplinary dental treatment of a patient with incontinentia pigmenti exhibiting oligodontia and skeletal Class III malocclusion. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.odw.2017.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Arai K. Tooth agenesis patterns in Japanese orthodontic patients with nonsyndromic oligodontia. Am J Orthod Dentofacial Orthop 2019; 156:238-247. [DOI: 10.1016/j.ajodo.2018.09.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 09/01/2018] [Accepted: 09/01/2018] [Indexed: 12/31/2022]
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7
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Ross J, Fennis W, de Leeuw N, Cune M, Willemze A, Rosenberg A, Ploos van Amstel H, Créton M, van den Boogaard M. Concurrent manifestation of oligodontia and thrombocytopenia caused by a contiguous gene deletion in 12p13.2: A three-generation clinical report. Mol Genet Genomic Med 2019; 7:e679. [PMID: 30950205 PMCID: PMC6565550 DOI: 10.1002/mgg3.679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/06/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Wnt and Wnt-associated pathways play an important role in the genetic etiology of oligodontia, a severe form of tooth agenesis. Loss-of-function mutations in LRP6 , encoding a transmembrane cell-surface protein that functions as a coreceptor in the canonical Wnt/b-catenin signaling cascade, also contribute to genetic oligodontia. METHODS AND RESULTS We describe a three-generation family with hereditary thrombocytopenia and oligodontia. Genome wide array analysis was performed. The array results from the index patient revealed an interstitial loss of 150 kb in 8p23.1 (chr8:6,270,299-6,422,558; hg19) encompassing MCPH1 and ANGPT2 and an interstitial loss of 290 kb in 12p13.2 (chr12:12,005,720-12,295,290; hg19) encompassing ETV6, BCL2L14 and LRP6. CONCLUSION This case report shows a three-generation family with hereditary thrombocytopenia and oligodontia with a heterozygous 290 kb novel contiguous gene deletion in band p13.2 of chromosome 12, encompassing LRP6 and ETV6. In this report we discuss the clinical relevance of the deletion of both genes and illustrate the importance of thorough examination of oligodontia patients. Comprising not only the oral status but also the medical history of the patients and their relatives.
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Affiliation(s)
- Jamila Ross
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Willem Fennis
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Nicole de Leeuw
- Department of Human GeneticsRadboud University Medical CenterNijmegenthe Netherlands
| | - Marco Cune
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareUniversity Medical Center UtrechtUtrechtthe Netherlands
- Center for Dentistry and Oral Hygiene, Department of Fixed and Removable Prosthodontics and BiomaterialsUniversity Medical Center GroningenGroningenthe Netherlands
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareSt. Antonius Hospital NieuwegeinNieuwegeinthe Netherlands
| | - Annemieke Willemze
- Department of HematologyUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Antoine Rosenberg
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareUniversity Medical Center UtrechtUtrechtthe Netherlands
| | | | - Marijn Créton
- Department of Oral‐Maxillofacial Surgery, Prosthodontics and Special Dental CareUniversity Medical Center UtrechtUtrechtthe Netherlands
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8
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Badrov J, Gaspar G, Tadin A, Galic T, Govorko DK, Gavic L, Badrov R, Galic I. Prevalence and Characteristics of Congenitally Missing Permanent Teeth among Orthodontic Patients in Southern Croatia. Acta Stomatol Croat 2017; 51:290-299. [PMID: 29872234 PMCID: PMC5975451 DOI: 10.15644/asc51/4/3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/16/2017] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Congenitally missing permanent teeth (CMPT) was recognized as a clinical and public health problem in pediatric dentistry. AIM To determine the prevalence of CMPT among orthodontic patients in Southern Croatia. MATERIALS AND METHODS In a retrospective study, we analyzed CMPT in patients from three different regions in Southern Croatia (SC). Two orthodontic practices from each region were selected and a total of 4649 records of patients aged 6 - 15 years, who were clinically examined for orthodontic treatment between 2008 and 2015, were evaluated. We excluded 219 patients and 4430 patients remained for further analysis. RESULTS There was no difference in prevalence of CMPT among regions in Southern Croatia, and the whole sample was evaluated. CMPT was found in 345(7.8%) patients. The highest proportion of CMPT was with one or two missing teeth 122 (81.9%) and 158 (80.6%), followed by those with three to five missing teeth or moderate hypodontia, 25(16.8%) and 35(17.9%), in males, and females respectively. Bilateral hypodontia of the lower second premolars and upper second incisors was more common than unilateral hypodontia. CONCLUSIONS The obtained results of high prevalence of CMPT in Southern Croatia reinforce the need for a timely diagnostics and treatment of moderate and severe cases.
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Affiliation(s)
- Jozo Badrov
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | - Goran Gaspar
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | - Antonija Tadin
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | - Tea Galic
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | | | - Lidija Gavic
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | - Robert Badrov
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
| | - Ivan Galic
- Study of Dental Medicine, University of Split School of Medicine, Split, Croatia
- Department of Research in Biomedicine and Health, University of Split School of Medicine, Split, Croatia
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9
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Dental Age and Tooth Development in Orthodontic Patients with Agenesis of Permanent Teeth. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8683970. [PMID: 28331854 PMCID: PMC5346386 DOI: 10.1155/2017/8683970] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/15/2017] [Accepted: 01/31/2017] [Indexed: 11/23/2022]
Abstract
Objective. To compare the development of permanent teeth in a group of children with the congenitally missing permanent teeth (CMPT) and corresponding nonaffected group. Methods. The formation stages of all developing permanent teeth were determined on 345 panoramic radiographs (OPTs) by the method of Haavikko (1970), and dental age was calculated. The paired samples t-test was used to compare the differences between dental age (DA) and chronological age (CA) in those with CMPT and those not affected. Spearman test was used to evaluate the correlation between DA-CA and the number of missing teeth. The Wilcoxon signed rank test was used to compare the development of the teeth adjacent to the place of the agenesis with matched pair in corresponding nonaffected group. Results. Dental age was significantly delayed in CMPT children compared to the nonaffected group (p < 0.001). The mean differences were −0.57 ± 1.20 years and −0.61 ± 1.23 years in males and females, without difference between sexes (p = 0.763). The number of missing teeth affected the delay only in females (p = 0.024). Only mesial teeth in females were significantly delayed in development when compared to the nonaffected group (p = 0.007). Conclusion. Our findings show that the development of the permanent teeth is delayed when compared to the nonaffected group of the same sex and age.
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10
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Khandelwal KD, Ishorst N, Zhou H, Ludwig KU, Venselaar H, Gilissen C, Thonissen M, van Rooij IALM, Dreesen K, Steehouwer M, van de Vorst M, Bloemen M, van Beusekom E, Roosenboom J, Borstlap W, Admiraal R, Dormaar T, Schoenaers J, Vander Poorten V, Hens G, Verdonck A, Bergé S, Roeleveldt N, Vriend G, Devriendt K, Brunner HG, Mangold E, Hoischen A, van Bokhoven H, Carels CEL. Novel IRF6 Mutations Detected in Orofacial Cleft Patients by Targeted Massively Parallel Sequencing. J Dent Res 2016; 96:179-185. [PMID: 27834299 DOI: 10.1177/0022034516678829] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Common variants in interferon regulatory factor 6 ( IRF6) have been associated with nonsyndromic cleft lip with or without cleft palate (NSCL/P) as well as with tooth agenesis (TA). These variants contribute a small risk towards the 2 congenital conditions and explain only a small percentage of heritability. On the other hand, many IRF6 mutations are known to be a monogenic cause of disease for syndromic orofacial clefting (OFC). We hypothesize that IRF6 mutations in some rare instances could also cause nonsyndromic OFC. To find novel rare variants in IRF6 responsible for nonsyndromic OFC and TA, we performed targeted multiplex sequencing using molecular inversion probes (MIPs) in 1,072 OFC patients, 67 TA patients, and 706 controls. We identified 3 potentially pathogenic de novo mutations in OFC patients. In addition, 3 rare missense variants were identified, for which pathogenicity could not unequivocally be shown, as all variants were either inherited from an unaffected parent or the parental DNA was not available. Retrospective investigation of the patients with these variants revealed the presence of lip pits in one of the patients with a de novo mutation suggesting a Van der Woude syndrome (VWS) phenotype, whereas, in other patients, no lip pits were identified.
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Affiliation(s)
- K D Khandelwal
- 1 Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - N Ishorst
- 2 Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany.,3 Institute of Human Genetics, Biomedical Center, University of Bonn, Bonn, Germany
| | - H Zhou
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,5 Department of Molecular Developmental Biology, Radboud Institute for Molecular Life Sciences, Radboud University, Nijmegen, The Netherlands
| | - K U Ludwig
- 2 Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany.,3 Institute of Human Genetics, Biomedical Center, University of Bonn, Bonn, Germany
| | - H Venselaar
- 6 Centre for Molecular and Biomolecular Informatics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - C Gilissen
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,7 Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M Thonissen
- 1 Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - I A L M van Rooij
- 8 Radboud Institute for Health Sciences, Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - K Dreesen
- 1 Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M Steehouwer
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M van de Vorst
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - M Bloemen
- 1 Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - E van Beusekom
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - J Roosenboom
- 9 Department of Neurosciences, Experimental Otorhinolaryngology, AGORA-Research Group, KU Leuven, Leuven, Belgium
| | - W Borstlap
- 10 Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands; Cleft Palate Craniofacial Centre, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R Admiraal
- 11 Hearing & Genes Division, Department of Otorhinolaryngology, Radboud University Medical Center, Nijmegen. GA, The Netherlands; Cleft Palate Craniofacial Centre, Radboud University Medical Center, Nijmegen, The Netherlands
| | - T Dormaar
- 12 Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Leuven Cleft Lip and Palate Team, KU Leuven, Leuven, Belgium
| | - J Schoenaers
- 12 Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Leuven Cleft Lip and Palate Team, KU Leuven, Leuven, Belgium
| | - V Vander Poorten
- 13 Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Belgium; Leuven Cleft Lip and Palate Team, University Hospitals KU Leuven, Leuven, Belgium
| | - G Hens
- 13 Otorhinolaryngology-Head and Neck Surgery, University Hospitals Leuven, Belgium; Leuven Cleft Lip and Palate Team, University Hospitals KU Leuven, Leuven, Belgium
| | - A Verdonck
- 14 Department of Orthodontics, University Hospitals Leuven, Belgium; Leuven Cleft Lip and Palate Team, AGORA-Research Group, University Hospitals KU Leuven, Leuven, Belgium
| | - S Bergé
- 10 Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, Nijmegen, The Netherlands; Cleft Palate Craniofacial Centre, Radboud University Medical Center, Nijmegen, The Netherlands
| | - N Roeleveldt
- 8 Radboud Institute for Health Sciences, Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
| | - G Vriend
- 6 Centre for Molecular and Biomolecular Informatics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - K Devriendt
- 15 Department of Clinical Genetics, Center for Human Genetics, University Hospitals KU Leuven, Leuven, Belgium
| | - H G Brunner
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands
| | - E Mangold
- 3 Institute of Human Genetics, Biomedical Center, University of Bonn, Bonn, Germany
| | - A Hoischen
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,7 Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - H van Bokhoven
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,7 Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - C E L Carels
- 4 Department of Human Genetics, Radboud University Medical Center, Nijmegen, The Netherlands.,16 Department of Oral Health Sciences, AGORA-Research Group, University Hospitals KU Leuven, Leuven, Belgium
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11
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Ockeloen CW, Khandelwal KD, Dreesen K, Ludwig KU, Sullivan R, van Rooij IALM, Thonissen M, Swinnen S, Phan M, Conte F, Ishorst N, Gilissen C, RoaFuentes L, van de Vorst M, Henkes A, Steehouwer M, van Beusekom E, Bloemen M, Vankeirsbilck B, Bergé S, Hens G, Schoenaers J, Poorten VV, Roosenboom J, Verdonck A, Devriendt K, Roeleveldt N, Jhangiani SN, Vissers LELM, Lupski JR, de Ligt J, Von den Hoff JW, Pfundt R, Brunner HG, Zhou H, Dixon J, Mangold E, van Bokhoven H, Dixon MJ, Kleefstra T, Hoischen A, Carels CEL. Novel mutations in LRP6 highlight the role of WNT signaling in tooth agenesis. Genet Med 2016; 18:1158-1162. [PMID: 26963285 PMCID: PMC5018235 DOI: 10.1038/gim.2016.10] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 01/09/2016] [Indexed: 12/15/2022] Open
Abstract
Purpose Here we aimed to identify a novel genetic cause of tooth agenesis (TA) and/or orofacial clefting (OFC) by combining whole exome sequencing (WES) and targeted re-sequencing in a large cohort of TA and OFC patients. Methods WES was performed in two unrelated patients, one with severe TA and OFC and another with severe TA only. After identifying deleterious mutations in a gene encoding the low density lipoprotein receptor-related protein 6 (LRP6), all its exons were re-sequenced with molecular inversion probes, in 67 patients with TA, 1,072 patients with OFC and in 706 controls. Results We identified a frameshift (c.4594delG, p.Cys1532fs) and a canonical splice site mutation (c.3398-2A>C, p.?) in LRP6 respectively in the patient with TA and OFC, and in the patient with severe TA only. The targeted re-sequencing showed significant enrichment of unique LRP6 variants in TA patients, but not in nonsyndromic OFC. From the 5 variants in patients with TA, 2 affect the canonical splice site and 3 were missense variants; all variants segregated with the dominant phenotype and in 1 case the missense mutation occurred de novo. Conclusion Mutations in LRP6 cause tooth agenesis in man.
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Affiliation(s)
- Charlotte W Ockeloen
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Kriti D Khandelwal
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Karoline Dreesen
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Department of Oral Health Sciences, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Kerstin U Ludwig
- Institute of Human Genetics, Department of Genomics, Life & Brain Center, University of Bonn, D-53127, Bonn, Germany
| | - Robert Sullivan
- Faculty of Life Sciences and Dental School, University of Manchester, M13 9PT, Manchester, United Kingdom
| | - Iris A L M van Rooij
- Department for Health Evidence, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Michelle Thonissen
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Steven Swinnen
- Department of Oral Health Sciences, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Milien Phan
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Federica Conte
- Radboud University, Department of Molecular Developmental Biology, Radboud Institute for Molecular Life Sciences, 6500 HB, Nijmegen, The Netherlands
| | - Nina Ishorst
- Institute of Human Genetics, Department of Genomics, Life & Brain Center, University of Bonn, D-53127, Bonn, Germany
| | - Christian Gilissen
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Laury RoaFuentes
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Maartje van de Vorst
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Arjen Henkes
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Marloes Steehouwer
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Ellen van Beusekom
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Marjon Bloemen
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Bruno Vankeirsbilck
- DNA facility, Center for Human Genetics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Stefaan Bergé
- Department of Oral and Maxillofacial Surgery, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Greet Hens
- Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Joseph Schoenaers
- Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Vincent Vander Poorten
- Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Jasmien Roosenboom
- Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - An Verdonck
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Koen Devriendt
- Cleft Lip Palate Team and AGORA-Support Group, Departments of Otorhinolaryngology and Head and Neck Surgery, Maxillofacial Surgery, and Orthodontics, University Hospitals KU Leuven, 3000, Leuven, Belgium.,Center for Human Genetics, Department of Clinical Genetics, University Hospitals KU Leuven, 3000, Leuven, Belgium
| | - Nel Roeleveldt
- Department for Health Evidence, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Shalini N Jhangiani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, Texas, USA
| | - Lisenka E L M Vissers
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - James R Lupski
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, Texas, USA.,Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, Texas, USA.,Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, Texas, USA.,Texas Children's Hospital, Houston, TX 77030, Texas, USA
| | - Joep de Ligt
- Hubrecht Institute, KNAW and University Medical Center Utrecht, 3508 AD, Utrecht, The Netherlands
| | - Johannes W Von den Hoff
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Han G Brunner
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Huiqing Zhou
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Radboud University, Department of Molecular Developmental Biology, Radboud Institute for Molecular Life Sciences, 6500 HB, Nijmegen, The Netherlands
| | - Jill Dixon
- Faculty of Life Sciences and Dental School, University of Manchester, M13 9PT, Manchester, United Kingdom
| | - Elisabeth Mangold
- Institute of Human Genetics, Biomedical Center, University of Bonn, D-53127, Bonn, Germany
| | - Hans van Bokhoven
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Michael J Dixon
- Faculty of Life Sciences and Dental School, University of Manchester, M13 9PT, Manchester, United Kingdom
| | - Tjitske Kleefstra
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Alexander Hoischen
- Department of Human Genetics, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Department of Cognitive Neurosciences, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands
| | - Carine E L Carels
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, 6500 HB, Nijmegen, The Netherlands.,Department of Oral Health Sciences, University Hospitals KU Leuven, 3000, Leuven, Belgium
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12
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Gunenkova IV, Samoylova NV, Bondarets AY. Optimization of diagnostics and orthodontic treatment planning in children and adolescents with multiply adentia. STOMATOLOGIIA 2015; 94:61-66. [PMID: 26331177 DOI: 10.17116/stomat201594361-66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The data of clinical examination, diagnostic models and panoramic x-rays investigation of the 332 patients at the age from 6 to 18 years with adentia were analysed. The congenital absence of more than 6 teeth was defined as oligodontia. The purpose of the study was to evaluate the prevalence of missing teeth patterns and other dental abnormalities such as microdontia, persistent deciduous teeth, ankylosis, taurodontism, impaction and transposition in children and adolescents with isolated and syndromic oligodontia to optimize the diagnostic and orthodontic treatment plan. The total number of 332 patients were devided into three groups: 1-132 patients with hypodontia, 2-119 subjects with isolated oligodontia and 3 - 81 with syndromic oligodontia. The subgroup comprised of 45 children with ectodermal dysplasia (ED) syndromes and oligodontia 1,5-6 years at baseline examination was selected from the patients of group 3. The main type of inheritance was X-linked recessive and the most spread syndrome was hypohidrotic ectodermal dysplasia or Christ-Siemens-Touraine syndrome. The female patients were twice more than males in hypodontia and isolated oligodontia groups, but in group of 3 syndromic patients the rate of males to females was 1,56:1. The most stable to agenesis teeth were the upper central deciduous and permanent incisors. In group 2 the most often absent teeth were upper second premolars and in group 3-the upper lateral incisors. In syndromic patients with temporary dentition the upper lateral incisors and all lower incisors were always absent. It was concluded that the absence of teeth at the age of 1,5 years, male gender and absense of more than 14 teeth in the temporary dentition and 20 teeth in the permanent dentition were the signs of syndromic oligidontia. It is necessary for such patients to be examined besides dentists and pediatrician by other medical specialist such as dermatologist and geneticist.
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Affiliation(s)
- I V Gunenkova
- Department of Orthodontics, Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow
| | - N V Samoylova
- Chair of Orthodontics of the Russian Medical Academy for Postgraduate Education Ministry of Health of the Russian Federation, Moscow
| | - A Yu Bondarets
- Department of Orthodontics, Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow
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