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Berber U, Gül Şıraz Ü, Yakubi M, Gök E, Kara L, Kiraz A, Dündar M, Hatipoglu N. A Case Series of Three Patients with Cleidocranial Dysplasia: Clinical Presentation and Diagnostic Considerations. Cleft Palate Craniofac J 2024:10556656241234742. [PMID: 38414358 DOI: 10.1177/10556656241234742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024] Open
Abstract
Cleidocranial dysplasia (CCD) is a rare genetic condition that affects the bones and teeth. In our study, we presented three cases of CCD, including one with a new mutation and two with a family history. Case 1 had a unique heterozygous frameshift mutation (NM_001015051,c.762del, p.(Ser256Valfs*2)), while Case 2 and her brother (Case 3) had a common pathogenic missense mutation (NM_001015051,c.674G, p.Arg225Gln), which was also found in their father. The mutation in Case 1 was not reported before. Interestingly, the symptoms in Case 1, with the new mutation, were less severe than the other cases and the previous reports.
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Affiliation(s)
- Uğur Berber
- Department of Pediatric Endocrinology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Ülkü Gül Şıraz
- Department of Pediatric Endocrinology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Mustafa Yakubi
- Department of Medical Genetics, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Ebru Gök
- Department of Pediatric Endocrinology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Leyla Kara
- Department of Pediatric Endocrinology, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Aslihan Kiraz
- Department of Medical Genetics, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Munis Dündar
- Department of Medical Genetics, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Nihal Hatipoglu
- Department of Pediatric Endocrinology, Erciyes University Faculty of Medicine, Kayseri, Turkey
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Cissé L, Yalcouyé A, Touré KO, Coulibaly Y, Maiga AB, Bamba S, Diallo D, Diarra S, Taméga A, Traoré O, Kotioumbé M, Sangaré MA, Ba HO, Simaga A, Koné FI, Samassekou O, Koné A, Guinto CO, Landouré G. A novel de novo variant in the RUNX2 gene causes cleidocranial dysplasia in a Malian girl. Clin Case Rep 2024; 12:e8551. [PMID: 38415192 PMCID: PMC10896746 DOI: 10.1002/ccr3.8551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/15/2023] [Accepted: 02/12/2024] [Indexed: 02/29/2024] Open
Abstract
Key Clinical Message Cleidocranial dysplasia (CCD) is a rare genetic skeletal disorder with only few cases reported in Africa, mostly based on clinical and radiological findings. We report the first case in Mali, caused by a novel de novo variant in the RUNX2 gene. Abstract Cleidocranial dysplasia (CCD) is a rare autosomal dominant skeletal dysplasia characterized by an aplastic/hypoplastic clavicles, patent sutures and fontanels, dental abnormalities and a variety of other skeletal changes. We report a novel de novo variant in the RUNX2 gene causing a severe phenotype of CCD in a Malian girl.
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Affiliation(s)
- Lassana Cissé
- Service de Neurologie, Centre Hospitalier Universitaire du Point G Bamako Mali
| | - Abdoulaye Yalcouyé
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Kadidia Oumar Touré
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- Service d'Orthopédie Dento-faciale, Centre Hospitalier Universitaire-Centre National d'Odonto-Stomatologie Professeur Hamady TRAORE (CHU-CNOS Pr HT) Bamako Mali
| | - Youlouza Coulibaly
- Service d'Imagerie Médicale, Centre Hospitalier Universitaire du Point G Bamako Mali
| | - Alassane Baneye Maiga
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Salia Bamba
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Dramane Diallo
- University Clinical Research Center (UCRC), University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Salimata Diarra
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- Neurogenetics Branch, NINDS, NIH Bethesda Maryland USA
| | - Abdoulaye Taméga
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Oumou Traoré
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Mahamadou Kotioumbé
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Moussa Aly Sangaré
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Hamidou Oumar Ba
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- Service de Cardiologie, Centre Hospitalier Universitaire Gabriel Touré Bamako Mali
| | - Assiatou Simaga
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- Institut d'Ophtalmologie Tropicale de l'Afrique Bamako Mali
| | - Fatogoma Issa Koné
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- Service d'ORL, Centre Hospitalier Universitaire Gabriel Touré Bamako Mali
| | - Oumar Samassekou
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Amadou Koné
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
- University Clinical Research Center (UCRC), University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Cheick Oumar Guinto
- Service de Neurologie, Centre Hospitalier Universitaire du Point G Bamako Mali
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
| | - Guida Landouré
- Service de Neurologie, Centre Hospitalier Universitaire du Point G Bamako Mali
- Faculté de Médecine et d'Odontostomatologie University of Sciences, Techniques and Technology of Bamako (USTTB) Bamako Mali
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3
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Winchester EW, Hardy A, Cotney J. Integration of multimodal data in the developing tooth reveals candidate regulatory loci driving human odontogenic phenotypes. FRONTIERS IN DENTAL MEDICINE 2022; 3:1009264. [PMID: 37034481 PMCID: PMC10078798 DOI: 10.3389/fdmed.2022.1009264] [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] [Indexed: 12/02/2022] Open
Abstract
Human odontogenic aberrations such as abnormal tooth number and delayed tooth eruption can occur as a symptom of rare syndromes or, more commonly, as nonsyndromic phenotypes. These phenotypes can require extensive and expensive dental treatment, posing a significant burden. While many dental phenotypes are heritable, most nonsyndromic cases have not been linked to causal genes. We demonstrate the novel finding that common sequence variants associated with human odontogenic phenotypes are enriched in developmental craniofacial enhancers conserved between human and mouse. However, the bulk nature of these samples obscures if this finding is due to the tooth itself or the surrounding tissues. We therefore sought to identify enhancers specifically active in the tooth anlagen and quantify their contribution to the observed genetic enrichments. We systematically identified 22,001 conserved enhancers active in E13.5 mouse incisors using ChIP-seq and machine learning pipelines and demonstrated biologically relevant enrichments in putative target genes, transcription factor binding motifs, and in vivo activity. Multi-tissue comparisons of human and mouse enhancers revealed that these putative tooth enhancers had the strongest enrichment of odontogenic phenotype-associated variants, suggesting a role for dysregulation of tooth developmental enhancers in human dental phenotypes. The large number of these regions genome-wide necessitated prioritization of enhancer loci for future investigations. As enhancers modulate gene expression, we prioritized regions based on enhancers' putative target genes. We predicted these target genes and prioritized loci by integrating chromatin state, bulk gene expression and coexpression, GWAS variants, and cell type resolved gene expression to generate a prioritized list of putative odontogenic phenotype-driving loci active in the developing tooth. These genomic regions are of particular interest for downstream experiments determining the role of specific dental enhancer:gene pairs in odontogenesis.
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Affiliation(s)
| | - Alexis Hardy
- Master of Genetics Program, Paris Diderot University,
Paris, France
| | - Justin Cotney
- Department of Genetics and Genome Sciences, University of
Connecticut School of Medicine, Farmington, CT, United States
- Institute for Systems Genomics, University of Connecticut,
Storrs, CT, United States
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4
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Zhang Y, Duan X. A Novel 90-kbp Deletion of RUNX2 Associated with Cleidocranial Dysplasia. Genes (Basel) 2022; 13:1128. [PMID: 35885911 PMCID: PMC9322484 DOI: 10.3390/genes13071128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 12/02/2022] Open
Abstract
Cleidocranial dysplasia (CCD) is a rare autosomal dominant skeletal dysplasia caused by runt-related transcription factor 2 (RUNX2) mutations. In addition to the regular missense, small or large fragment deletions are the common mutation types of RUNX2. This study aimed to find the rules of deletions in RUNX2. The clinical information of one Chinese CCD family was collected. Genomic DNA was extracted for whole-exome sequencing (WES). Bioinformatics analyzed the pathogenicity of the variants. Polymerase chain reaction (PCR) and Sanger sequencing were carried out using specific primers. RT-PCR and Q-PCR were also used to detect the mRNA level of RUNX2. The CCD studies related with deletions in RUNX2 from 1999 to 2021 from HGMD and PubMed were collected and analyzed for the relationship between the phenotypes and the length of deleted fragments. The proband presented typical CCD features, including delayed closure of cranial sutures, clavicle dysplasia, abnormal teeth. WES, PCR with specific primers and Sanger sequencing revealed a novel heterozygous 90-kbp deletion in RUNX2 (NG_008020.2 g.103671~193943), which caused a substitution (p.Asn183Ile) and premature termination (p.Asp184*). In addition, the mRNA expression of RUNX2 was decreased by 75.5% in the proband. Herein, 31 types of deletions varying from 2 bp to 800 kbp or covering the whole gene of RUNX2 were compared and the significant phenotypic difference was not found among these deletions. The CCD phenotypes were related with the final effects of RUNX2 mutation instead of the length of deletion. WES has the defects in identifying large indels, and direct PCR with specific primers and Sanger sequencing could make up for the shortcoming.
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Affiliation(s)
| | - Xiaohong Duan
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi’an 710032, China;
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5
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Yang L, Lu G, Shen W, Chen W, Lu H, Zhang G, Yuan S, Zheng S, Ren J. Whole-exome sequencing of a novel initiation codon mutation in RUNX2 in a Chinese family with cleidocranial dysplasia. Medicine (Baltimore) 2021; 100:e27746. [PMID: 34766588 PMCID: PMC8589230 DOI: 10.1097/md.0000000000027746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 10/25/2021] [Indexed: 01/05/2023] Open
Abstract
Cleidocranial dysplasia (CCD) is mainly attributable to a variant of runt-related transcription factor 2 (RUNX2) on chromosome 6p21. CCD is an autosomal dominant skeletal disorder characterized by open/delayed closure of fontanels, clavicular hypoplasia, retention of deciduous teeth, and supernumerary permanent teeth. The aim of this study was to investigate potentially pathogenic mutations in 2 Chinese families. Genomic DNA was obtained from peripheral blood lymphocytes, and whole exome sequencing and Sanger sequencing were performed to detect gene variants. Real-time quantitative PCR was performed to determine the mRNA expression level of RUNX2 in the proband of family 1. Silico algorithms and conservation analyses were used to evaluate the functional impact. We identified a novel initiation codon mutation (c.2T>C) and a previously reported mutation (c.569G>A). Familial co-segregation verified an autosomal-dominant inheritance pattern. Our findings demonstrated that the novel mutation c.2T>C causes CCD. Quantitative real-time PCR suggested that downregulated RUNX2 levels and haploinsufficiency in RUNX2 lead to CCD. These results extend the spectrum of RUNX2 mutations in CCD patients and can be used for genetic consultation and prenatal diagnosis.
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Affiliation(s)
- Liyuan Yang
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Genqi Lu
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Wenjing Shen
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Wenjing Chen
- Department of Orthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Haiyan Lu
- Department of Orthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | - Guozhong Zhang
- College of Forensic Medicine, Hebei Medical University, Shijiazhuang, PR China
| | - Shuo Yuan
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
| | | | - Jiabao Ren
- Department of Prosthodontics, Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, PR China
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6
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Xue R, Zhang G, Chen X, Ye X. Cleidocranial Dysplasia Causing Respiratory Distress in Neonates: A Case Report and Literature Review. Front Genet 2021; 12:696685. [PMID: 34630510 PMCID: PMC8498102 DOI: 10.3389/fgene.2021.696685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 08/30/2021] [Indexed: 11/16/2022] Open
Abstract
Cleidocranial dysplasia (CCD; OMIM 119600) is a rare autosomal dominant skeletal dysplasia, which is mainly characterized by persistently open or delayed closure of fontanelle, patent skull sutures, abnormal clavicles, pectus excavatum, short stature, supernumerary teeth, and sinus and middle ear infections. It is caused by Runt-related transcription factor 2 (RUNX2; OMIM 600211) mutations. Herein, we present a rare case of CCD with neonatal respiratory distress, who had abnormal midfacial features and wide fontanelle. Also, pectus excavatum was noted. He was transferred to our department, administered standard medical treatment, and discharged after 4 weeks. Therefore, we recommend the early suspicion and identification of this rare inherited disease to adequate treatment.
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Affiliation(s)
- Ru Xue
- Department of Neonatology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guoqing Zhang
- Department of Neonatology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiafang Chen
- Department of Neonatology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiuxia Ye
- Department of Neonatology, Shanghai Children's Medical Center Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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7
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Motaei J, Salmaninejad A, Jamali E, Khorsand I, Ahmadvand M, Shabani S, Karimi F, Nazari MS, Ketabchi G, Naqipour F. Molecular Genetics of Cleidocranial Dysplasia. Fetal Pediatr Pathol 2021; 40:442-454. [PMID: 31984822 DOI: 10.1080/15513815.2019.1710792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cleidocranial dysplasia (CCD) is a genetic disorder with an autosomal dominant inheritance pattern. CCD characterized by abnormal clavicles, patent sutures and fontenelles, supernumerary teeth and short stature. Approximately 60-70% of CCD patients have mutations in the RUNX2 gene. The RUNX2 gene is an essential transcription factor for chondrocyte maturation, osteoblast differentiation and bone formation. Runx2 regulates mesenchymal cell proliferation in sutures and suture closure by inducing the signaling pathways of the genes of Fgf, Pthlh, hedgehog and Wnt. Material and Methods: We summarized molecular genetics aspects of CCD. Result: Approximately 94% of CCD patients have dental anomalies, the most common of which are supernumerary tooth. Dental anomalies are not determined solely by gene mutations of RUNX2, but are also affected by modifier genes, environmental factors, epigenetic factors and copy number variations. Conclusion: a definite diagnosis of CCD should include the patient's clinical history, symptoms and signs, as well as genetic analyses.
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Affiliation(s)
- Jamshid Motaei
- Department of Medical Genetics, Medical Genetics Research Center, Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Arash Salmaninejad
- Department of Medical Genetics, Medical Genetics Research Center, Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Halal Research Center of IRI, FDA, Tehran, Iran
| | - Ebrahim Jamali
- Department of Biology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Imaneh Khorsand
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ahmadvand
- Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sasan Shabani
- Department of Optometry, School of Para Medical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farshid Karimi
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sadegh Nazari
- Postgraduate Student, Department of Orthodontics, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
| | - Golsa Ketabchi
- Postgraduate Student, Department of Oral and Maxillofacial Radiology, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
| | - Fatemeh Naqipour
- Postgraduate Student, Department of Oral and Maxillofacial Radiology, School of Dentistry, Mashhad University of Medical Science, Mashhad, Iran
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8
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Li Y, Sun R, Zhao X, Sun B. RUNX2 promotes malignant progression in gastric cancer by regulating COL1A1. Cancer Biomark 2021; 31:227-238. [PMID: 33896817 DOI: 10.3233/cbm-200472] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Runt-related transcription factor 2 (RUNX2) is an important gene that has been implicated in the progression of human cancer. Aberrant expression of RUNX2 predicts gastric cancer (GC) metastasis. However, the molecular mechanism of RUNX2 remains unknown. OBJECTIVE We hypothesize that RUNX2 promotes GC metastasis by regulating the extracellular matrix component collagen type I alpha 1 (COL1A1). METHODS The GEPIA database and immunohistochemical staining of 60 GC tissues were used to analyse the correlations between RUNX2 or COL1A1 expression and clinicopathological features, and the Kaplan-Meier method was used to evaluate survival. RT-PCR, western blotting and immunofluorescence were used to detect RUNX2 and COL1A1 expression in GC cells. Migration and invasion assays were performed to assess the influence of RUNX2 and COL1A1 on metastasis. RESULTS RUNX2 and COL1A1 were highly expressed at both the gene and protein levels in GC, and patients who were positive for RUNX2 and COL1A1 had shorter survival. RUNX2 and COL1A1 expression linearly correlated with each other (r= 0.15, p< 0.01) and with clinical stage and lymph node metastasis (p< 0.05). Overexpressing RUNX2in vitro enhanced COL1A1 expression and promoted GC cell invasion and migration, whereas COL1A1 knockdown inhibited the increase in cell metastatic capacity promoted by RUNX2. In vivo, GC cells overexpressing RUNX2 promoted lung metastasis, and the downregulation of COL1A1 reduced the metastasis promoted by RUNX2. CONCLUSIONS RUNX2 may promote GC metastasis by regulating COL1A1. RUNX2/COL1A1 can be employed as a novel target for therapy in GC.
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Affiliation(s)
- Yanlei Li
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Ran Sun
- Department of Gastrointestinal Surgery, Tianjin Nankai Hospital, Tianjin, China
| | - Xiulan Zhao
- Department of Pathology, Tianjin Medical University, Tianjin, China
| | - Baocun Sun
- Department of Pathology, Tianjin Medical University, Tianjin, China
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9
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Kim JH, Kim SJ, Kim HH, Kim JK. Sporadic Cleidocranial Dysplasia in a Newborn: A 4-Year Follow-up Study. NEONATAL MEDICINE 2020. [DOI: 10.5385/nm.2020.27.4.192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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10
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Fernandez CCA, Pereira CVCA, Ferreira FFCF, Maciel JVB, Modesto A, Costa MC, Vieira AR. IRF6, MSX1, TGFA, dental anomalies, and skeletal malocclusion. Eur J Orthod 2020; 43:478-485. [PMID: 33200192 DOI: 10.1093/ejo/cjaa064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Verify the presence of association between four variables-transforming growth factor α (TGFA; C/T rs1523305), interferon regulatory factor 6 (IRF6; A/C rs2013162), muscle segment homeobox 1 (MSX1; A/G rs12532), and dental anomalies-with skeletal malocclusion by comparing these four variables with Angle Classes I, II, and III, and normal, hyperdivergent, and hypodivergent growth patterns. METHODS A total of 505 orthodontic records of patients older than 8 years were evaluated. The sample consisted of 285 (56.4 per cent) females, 220 (43.6 per cent) males, 304 (60.2 per cent) Whites (the rest were mixed Blacks with Whites), with a mean age of 20.28 (±10.35) years (ranging from 8 to 25 years). Eight cephalometric points, which served as the anatomical framework for obtaining angles and cephalometric measurements, were used for skeletal characterization using the Dolphin Software. Samples of saliva were collected and the DNA was extracted, diluted and quantified. Markers in TGFA, IRF6, and MSX1 were used and genotypes were obtained using TaqMan chemistry. Odds ratio (OR) and 95 per cent confidence interval (CI) calculations, chi-square, Fisher's Exact, Mann-Whitney, and correlation coefficient tests (significance level: 95 per cent) were performed. Bonferroni correction was applied and an alpha of 0.0006 was considered statistically significant. RESULTS There was no statistically significant associations between markers in TGFA or IRF6 with skeletal malocclusions. Tooth agenesis was associated with facial convexity (P < 0.001). MSX1 was associated with Class II skeletal malocclusion (P = 0.0001, OR = 0.6, CI = 0.46-0.78). CONCLUSION Individuals with tooth agenesis were more likely to have a convex face. MSX1 was associated with Class II skeletal malocclusion.
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Affiliation(s)
- Clarissa C A Fernandez
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Brazil
| | - Christiane V C A Pereira
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Brazil
| | - Fernanda F C F Ferreira
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Brazil
| | - José V B Maciel
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Brazil
| | - Adriana Modesto
- Department of Pediatric Dentistry, University of Pittsburgh, PA, USA
| | - Marcelo C Costa
- Department of Pediatric Dentistry and Orthodontics, School of Dentistry, Universidade Federal do Rio de Janeiro, Brazil
| | - Alexandre R Vieira
- Oral Biology, School of Dental Medicine, University of Pittsburgh, PA, USA
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11
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Associations of the microRNA gene polymorphisms with the risk of non-syndromic supernumerary teeth in a Chinese population. Arch Oral Biol 2020; 117:104771. [DOI: 10.1016/j.archoralbio.2020.104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/09/2020] [Accepted: 05/11/2020] [Indexed: 11/23/2022]
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12
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Gu Y, Xiang B, Zhu L, Ma X, Chen X, Cai T. Three intellectual disability-associated de novo mutations in MECP2 identified by trio-WES analysis. BMC MEDICAL GENETICS 2020; 21:99. [PMID: 32393352 PMCID: PMC7216709 DOI: 10.1186/s12881-020-01042-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/04/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND To date, at least 746 genes have been identified to cause intellectual disability (ID). Among them, mutations in the Methyl CpG binding protein 2 (MECP2) gene are the leading cause of Rett syndrome and associated ID. METHODS Considering the large number of ID-associated genes, we applied trio-based whole-exome sequencing (trio-WES) and in silico analysis for genetic diagnosis of 294 children with ID. RESULTS Three de novo heterozygous mutations [NM_004992.3: c.502C > T, p.(Arg168*), c.916C > T, p.(Arg306Cys), and c.879C > G, p.(Ile293Met)] in MECP2 were identified in three unrelated girls. The first two mutations were detected in two patients who were diagnosed as typical Rett syndrome, X-linked ID and psychomotor retardation. The third mutation (c.879C > G), a previously unreported, was found in a 6-year-old girl with ID, microcephaly, severe underweight and psychomotor retardation. Particularly, this extremely rare de novo mutation (DNM) is located in the transcriptional repression domain (TRD) of MECP2, where at least 62 different causal mutations are identified. CONCLUSIONS We identified three DNMs in MECP2 in a cohort of 294 individuals with ID. The novel c.879C > G mutation, as a likely pathogenic allele, may become a risk factor associated with X-linked ID, microcephaly and psychomotor retardation.
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Affiliation(s)
- Yi Gu
- Department of Psychiatry, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China.,Experimental Medicine Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Bingwu Xiang
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Lina Zhu
- Department of Neurology, Bayi Children's Hospital, General Military Hospital of Beijing, Beijing, 10007, China
| | - Xiuwei Ma
- Department of Neurology, Bayi Children's Hospital, General Military Hospital of Beijing, Beijing, 10007, China
| | - Xiang Chen
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Tao Cai
- Experimental Medicine Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA.
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Amandokht Saghezchi S, Azad N, Heidari R, Jajarmi V, Abdi S, Abaszadeh HA, Sadjadpour SS, Neikoei N, Heidari MH, Abdollahifar MA. The Effect of Prenatal Exposure to 2.4 GHz Radio Frequency on the Histology and Expression of the osteocalcin and RUNX2 Gene of the Forelimb in an NMRI Mouse. J Lasers Med Sci 2019; 10:283-289. [PMID: 31875120 DOI: 10.15171/jlms.2019.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Today the use of electromagnetic waves has dramatically increased in modern industrial societies. This study aimed to investigate the effect of prenatal exposure to 2.4 GHz wireless frequency on forelimb development in an NMRI mouse in vivo. Methods: A total of 21 female mice weighing 25-30 g were included in the present study. They were randomly assigned to 3 groups, namely control (n=7), sham (n=7), and experimental (n=7). After mating, the experimental group was exposed to 2.4 GHz radio frequency at a distance of 20-30 cm from the device, 4 h/d until the delivery. The sham group was placed at a distance of 20-30 cm from the device every day without exposure to electromagnetic waves, and the control group had a pregnancy period without any stress and electromagnetic wave exposure. After giving birth, the forelimbs were isolated from the infants and examined by stereological studies and RT-PCR for the evaluation of osteocalcin and RUNX2 gene expression. Results: Although, at first glance, there was no macroscopic teratogen effect in forelimbs in all groups, via a stereological method, we showed that bone and cartilage volume decreased in the experimental group compared to the other groups. We also found that the experimental group had lower expression of the osteocalcin and RUNX2 gene than the control and sham groups did. However, there were no significant differences between the control and sham groups in terms of bone and cartilage volume and gene expression. Conclusion: Although teratogen effect of prenatal exposure to 2.4 GHz radio frequency on forelimbs was not demonstrated macroscopically, further studies showed negative effects on the forelimb bone, cartilage volume, and gene expression.
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Affiliation(s)
- Shaghayegh Amandokht Saghezchi
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nahid Azad
- Abnormal Uterine Bleeding Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Reihane Heidari
- Otorhinolaryngology Research Center, Occupational Sleep Research Center, Department of Otorhinolaryngology, Imam Khomeini Educational Complex Hospital, Valiasr Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Jajarmi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shabnam Abdi
- Department of Anatomical Sciences &Cognitive Neuroscience, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hojjat-Allah Abaszadeh
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyedeh Susan Sadjadpour
- Department of Cell and Molecular Biology, School of biology, College of Science, University of Tehran
| | - Naheid Neikoei
- Information Technology Management department, Islamic Azad University Electronic Unit, Tehran Iran
| | - Mohammad Hassan Heidari
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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14
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Gao X, Li K, Fan Y, Sun Y, Luo X, Wang L, Liu H, Gong Z, Wang J, Wang Y, Gu X, Yu Y. Identification of RUNX2 variants associated with cleidocranial dysplasia. Hereditas 2019; 156:31. [PMID: 31548836 PMCID: PMC6747736 DOI: 10.1186/s41065-019-0107-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 09/09/2019] [Indexed: 12/31/2022] Open
Abstract
Background Cleidocranial dysplasia (CCD) is a rare autosomal dominant disorder mainly characterized by hypoplastic or absent clavicles, delayed closure of the fontanelles, multiple dental abnormalities, and short stature. Runt-related transcription factor 2 (RUNX2) gene variants can cause CCD, but are not identified in all CCD patients. Methods In this study, we detected genetic variants in seven unrelated children with CCD by targeted high-throughput DNA sequencing or Sanger sequencing. Results All patients carried a RUNX2 variant, totally including three novel pathogenic variants (c.722_725delTGTT, p.Leu241Serfs*8; c.231_232delTG, Ala78Glyfs*82; c.909C > G, p.Tyr303*), three reported pathogenic variants (c.577C > T, p.Arg193*; c.574G > A, p.Gly192Arg; c.673 C > T, p.Arg225Trp), one likely pathogenic variant (c.668G > T, p.Gly223Val). The analysis of the variant source showed that all variants were de novo except the two variants (c.909C > G, p.Tyr303*; c.668G > T, p.Gly223Val) inherited from the patient’s father and mother with CCD respectively. Further bioinformatics analysis indicated that these variants could influence the structure of RUNX2 protein by changing the number of H-bonds or amino acids. The experimental result showed that the Gly223Val mutation made RUNX2 protein unable to quantitatively accumulate in the nucleus. Conclusions The present study expands the pathogenic variant spectrum of RUNX2 gene, which will contribute to the diagnosis of CCD and better genetic counseling in the future.
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Affiliation(s)
- Xueren Gao
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Kunxia Li
- 2The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Qingdao, Shandong China
| | - Yanjie Fan
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Yu Sun
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Xiaomei Luo
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Lili Wang
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Huili Liu
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Zhuwen Gong
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Jianguo Wang
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Yu Wang
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Xuefan Gu
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
| | - Yongguo Yu
- 1Department of Pediatric Endocrinology and Genetics, Shanghai Institute for Pediatric Research, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200092 China
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15
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Zhang H, Xiang B, Chen H, Chen X, Cai T. A novel deletion mutation in KMT2A identified in a child with ID/DD and blood eosinophilia. BMC MEDICAL GENETICS 2019; 20:38. [PMID: 30841869 PMCID: PMC6402113 DOI: 10.1186/s12881-019-0776-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/25/2019] [Indexed: 02/08/2023]
Abstract
Background The KMT2A gene encoded lysine methyltransferase plays an essential role in regulating gene expression during early development and hematopoiesis. To date, 92 different mutations of KMT2A have been curated in the human gene mutation database (HGMD), resulting in Wiedemann-Steiner syndrome (WDSTS) and intellectual disability (ID)/developmental delay (DD). Case presentation In this report, we present a de novo heterozygous deletion mutation [c.74delG; p. (Gly26Alafs*2)] in the KMT2A gene, which was identified by trio-based whole exome sequencing from a 5.5-year-old boy with ID/DD, stereotypic hand movements and blood eosinophilia. Many deleterious germline mutations of KMT2A have been documented to affect development of central nervous system, oral and craniofacial tissues, but not blood eosinophils. Conclusions This is the first report of a rare case with ID/DD as well as eosinophilia, resulting from a previously undescribed null mutation of KMT2A. Our findings expand the phenotypical spectrum in affected individuals with KMT2A mutations, and may shed some insight into the role of KMT2A in eosinophil metabolism. Electronic supplementary material The online version of this article (10.1186/s12881-019-0776-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Haixia Zhang
- Second Xiangya Hospital, Central South University, Changsha, 410002, Hunan, China.,Experimental Medicine Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Bingwu Xiang
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Hui Chen
- The Second Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Xiang Chen
- Physical Medicine and Rehabilitation Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Tao Cai
- Experimental Medicine Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20892, USA.
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