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Nishina S, Oda M, Nishida I, Habu M, Wakasugi-Sato N, Takahashi O, Tsurushima H, Otani T, Yoshiga D, Matsumoto-Takeda S, Nishimura S, Yoshii S, Sasaguri M, Yoshioka I, Morimoto Y. Imaging characteristics of gubernaculum tracts in patients with cleidocranial dysplasia: a computed tomography study. Oral Surg Oral Med Oral Pathol Oral Radiol 2024; 138:556-564. [PMID: 38839481 DOI: 10.1016/j.oooo.2024.04.106] [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: 12/15/2023] [Revised: 04/17/2024] [Accepted: 04/27/2024] [Indexed: 06/07/2024]
Abstract
OBJECTIVES To elucidate the imaging characteristics of the gubernaculum tract (GT) in patients with cleidocranial dysplasia (CCD) as visualized with computed tomography (CT). STUDY DESIGN This was a retrospective analysis of the presence and shape of GTs of unerupted permanent teeth and supernumerary teeth on CT in 9 patients with CCD. RESULTS The overall GT detection rate for unerupted permanent teeth was 83.5% (81/97), with no significant difference between permanent teeth without and with adjacent supernumerary teeth (P = .414). The overall GT detection rate for unerupted supernumerary teeth was 83.1% (49/59). Of the 156 total unerupted teeth analyzed, 83.3% (130/156) were judged to have GTs. No significant difference in detection rate of GTs was found between permanent and supernumerary teeth (P > 0.999). A composite morphology consisted of a single GT for a permanent unerupted tooth with 1 or 2 supernumerary teeth in which the dental follicles of the permanent and supernumerary teeth were confluent. In total, 44 groups consisted of 1 permanent and 1 or 2 supernumerary teeth; 79.5% (35/44) had GTs. CONCLUSIONS A specific composite structure of GTs and dental follicles may signify that 2 or 3 teeth are derived from a single dental lamina in patients with CCD. In such cases, tooth eruption may fail due to the presence of only 1 GT for multiple teeth.
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Affiliation(s)
- Susumu Nishina
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - Masafumi Oda
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - Ikuko Nishida
- Division of Developmental Stomatognathic Function Science, Kyushu Dental University, Kitakyushu, Japan
| | - Manabu Habu
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - Nao Wakasugi-Sato
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - Osamu Takahashi
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - Hiroki Tsurushima
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | - Taishi Otani
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | - Daigo Yoshiga
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | | | - Shun Nishimura
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan
| | - Shinji Yoshii
- Division of Promoting Learning Design Education, Kyushu Dental University, Kitakyushu, Japan
| | - Masaaki Sasaguri
- Division of Maxillofacial Surgery, Kyushu Dental University, Kitakyushu, Japan
| | - Izumi Yoshioka
- Division of Oral Medicine, Kyushu Dental University, Kitakyushu, Japan
| | - Yasuhiro Morimoto
- Division of Oral and Maxillofacial Radiology, Kyushu Dental University, Kitakyushu, Japan.
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Tu M, Ge B, Li J, Pan Y, Zhao B, Han J, Wu J, Zhang K, Liu G, Hou M, Yue M, Han X, Sun T, An Y. Emerging biological functions of Twist1 in cell differentiation. Dev Dyn 2024. [PMID: 39254141 DOI: 10.1002/dvdy.736] [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: 04/09/2024] [Revised: 08/03/2024] [Accepted: 08/14/2024] [Indexed: 09/11/2024] Open
Abstract
Twist1 is required for embryonic development and expresses after birth in mesenchymal stem cells derived from mesoderm, where it governs mesenchymal cell development. As a well-known regulator of epithelial-mesenchymal transition or embryonic organogenesis, Twist1 is important in a variety of developmental systems, including mesoderm formation, neurogenesis, myogenesis, cranial neural crest cell migration, and differentiation. In this review, we first highlight the physiological significance of Twist1 in cell differentiation, including osteogenic, chondrogenic, and myogenic differentiation, and then detail its probable molecular processes and signaling pathways. On this premise, we summarize the significance of Twist1 in distinct developmental disorders and diseases to provide a reference for studies on cell differentiation/development-related diseases.
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Affiliation(s)
- Mengjie Tu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Bingqian Ge
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Jiali Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Yanbing Pan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Binbin Zhao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Jiayang Han
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Jialin Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Kaifeng Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Guangchao Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Mengwen Hou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Man Yue
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Xu Han
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Tiantian Sun
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
| | - Yang An
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Henan University, Kaifeng, China
- Henan Provincial Engineering Center for Tumor Molecular Medicine, Kaifeng Key Laboratory of Cell Signal Transduction, Henan University, Kaifeng, China
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Hu R, Dun X, Singh L, Banton MC. Runx2 regulates peripheral nerve regeneration to promote Schwann cell migration and re-myelination. Neural Regen Res 2024; 19:1575-1583. [PMID: 38051902 PMCID: PMC10883509 DOI: 10.4103/1673-5374.387977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 09/16/2023] [Indexed: 12/07/2023] Open
Abstract
Abstract
JOURNAL/nrgr/04.03/01300535-202407000-00038/figure1/v/2023-11-20T171125Z/r/image-tiff
Runx2 is a major regulator of osteoblast differentiation and function; however, the role of Runx2 in peripheral nerve repair is unclear. Here, we analyzed Runx2 expression following injury and found that it was specifically up-regulated in Schwann cells. Furthermore, using Schwann cell-specific Runx2 knockout mice, we studied peripheral nerve development and regeneration and found that multiple steps in the regeneration process following sciatic nerve injury were Runx2-dependent. Changes observed in Runx2 knockout mice include increased proliferation of Schwann cells, impaired Schwann cell migration and axonal regrowth, reduced re-myelination of axons, and a block in macrophage clearance in the late stage of regeneration. Taken together, our findings indicate that Runx2 is a key regulator of Schwann cell plasticity, and therefore peripheral nerve repair. Thus, our study shows that Runx2 plays a major role in Schwann cell migration, re-myelination, and peripheral nerve functional recovery following injury.
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Affiliation(s)
- Rong Hu
- School of Traditional Chinese Medicine, Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xinpeng Dun
- The Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province, China
| | - Lolita Singh
- Faculty of Health, University of Plymouth, Plymouth, UK
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Farahat DS, Dang M, El-Fallal A, Badr N, Ma PX. Poly(N-isopropylacrylamide) based smart nanofibrous scaffolds for use as on-demand delivery systems for oral and dental tissue regeneration. J Biomed Mater Res A 2024; 112:852-865. [PMID: 38192179 DOI: 10.1002/jbm.a.37664] [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: 05/13/2023] [Revised: 09/06/2023] [Accepted: 12/18/2023] [Indexed: 01/10/2024]
Abstract
Stimuli-responsive domains capable of releasing loaded molecules, "on-demand," have garnered increasing attention due to their enhanced delivery, precision targeting, and decreased adverse effects. The development of an on-demand delivery system that can be easily triggered by dental clinicians might have major roles in dental and oral tissue engineering. A series of random graft poly(NIPAm-co-HEMA-Lactate) copolymers were synthesized using 95:5, 85:5, 60:40, and 40:60 ratios of thermosensitive NIPAm and HEMA-poly lactate respectively then electrospun to produce nanofibrous scaffolds loaded with bovine serum albumin (BSA). Cumulative BSA release was assessed at 25C and 37°C. To appraise the use of scaffolds as on-demand delivery systems, they were subjected to thermal changes in the form cooling and warming cycles during which BSA release was monitored. To confirm the triggered releasing ability of the synthesized scaffolds, the copolymer made with 60% NIPAm was selected, based on the results of the release tests, and loaded with bone morphogenetic protein-2 (BMP-2). The loaded scaffolds were placed with mesenchymal-like stem cells (iMSCs) derived from induced pluripotent stem cells (iPSCs), and subjected to temperature alterations. Then, the osteogenic differentiation of iMSCs, which might have resulted from the released protein, was evaluated after 10 days by analyzing runt-related transcription factor 2 (RUNX-2) osteogenic gene expression by the cells using real-time quantitative polymerase chain reaction (qRT-PCR). BSA release profiles showed a burst release at the beginning followed by a more linear pattern at 25°C, and a much slower release at 37°C. The release also decreased when the PNIPAm content decreased in the scaffolds. Thermal triggering led to a step-like release pattern in which the highest release was reported 30 min through the warming cycles. The iMSCs cultivated with scaffolds loaded with BMP-2 and exposed to temperature alteration showed significantly higher RUNX-2 gene expression than cells in the other experimental groups. The synthesized scaffolds are thermo-responsive and could be triggered to deliver biological biomolecules to be used in oral and dental tissue engineering. Thermal stimuli could be simulated by dental clinicians using simple means of cold therapy, for example, cold packs in intraoral accessible sites for specified times.
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Affiliation(s)
- Dina S Farahat
- Department of Biologic and Materials Sciences and Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Ming Dang
- Department of Biologic and Materials Sciences and Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Abeer El-Fallal
- Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
- Department of Dental Biomaterials, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Dakahlia, Egypt
| | - Nadia Badr
- Department of Dental Biomaterials, Faculty of Dentistry, October 6 University, Cairo, Egypt
- Department of Dental Biomaterials, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt
| | - Peter X Ma
- Department of Biologic and Materials Sciences and Prosthodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
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Frigério PB, Quirino LC, Gabrielli MAC, Carvalho PHDA, Garcia Júnior IR, Pereira-Filho VA. Evaluation of Bone Repair Using a New Biphasic Synthetic Bioceramic (Plenum ® Oss hp) in Critical Calvaria Defect in Rats. BIOLOGY 2023; 12:1417. [PMID: 37998016 PMCID: PMC10668970 DOI: 10.3390/biology12111417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
(1) Background: Biphasic bioceramics are synthetic bone substitutes that provide greater safety and better predictability in guided bone regeneration. This study aimed to evaluate the bone repair process using a new biphasic bioceramic of synthetic origin (Plenum® Osshp-70HA: 30β-TCP) in critical calvarial defects. (2) Methods: seventy-four defects were created in rat calvaria and divided into two groups-Plenum® Osshp (PO), right side, and Straumann® BoneCeramic™ (BC), left side. Euthanasia was performed at 7, 15, 30, and 60 days after surgery. (3) Results: Lower gene expression was observed for runt-related transcription factor 2 (RUNX2) and vascular endothelial growth factor (VEGF) and higher expression for Integrin Binding Sialoprotein (IBSP). The results correlated with moderate immunolabeling for osteocalcin (OCN) and slight immunolabeling for osteopontin (OPN) in the PO group. Histometry showed a greater amount of biomaterial remaining in the PO group at 60 days. The microtomographic analysis showed a lower density of bone connectivity and a greater thickness of the trabeculae for the remnants of the PO group. (4) Conclusions: the Plenum® Osshp showed no differences compared to BoneCeramic™ and is therefore considered an effective option as a synthetic bone substitute in bone regeneration.
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Affiliation(s)
- Paula Buzo Frigério
- Department of Diagnosis and Surgery, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo 16015-050, Brazil;
| | - Lilian Caldas Quirino
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Marisa Aparecida Cabrini Gabrielli
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Pedro Henrique de Azambuja Carvalho
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
| | - Idelmo Rangel Garcia Júnior
- Department of Diagnosis and Surgery, Araçatuba School of Dentistry, São Paulo State University (UNESP), Araçatuba, São Paulo 16015-050, Brazil;
| | - Valfrido Antonio Pereira-Filho
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo 14801-903, Brazil; (L.C.Q.); (M.A.C.G.); (P.H.d.A.C.); (V.A.P.-F.)
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Tantibhaedhyangkul W, Tantrapornpong J, Yutchawit N, Theerapanon T, Intarak N, Thaweesapphithak S, Porntaveetus T, Shotelersuk V. Dental characteristics of patients with four different types of skeletal dysplasias. Clin Oral Investig 2023; 27:5827-5839. [PMID: 37548766 PMCID: PMC10560164 DOI: 10.1007/s00784-023-05194-w] [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: 05/04/2022] [Accepted: 07/28/2023] [Indexed: 08/08/2023]
Abstract
OBJECTIVE Skeletal dysplasia (SD) comprises more than 450 separate disorders. We hypothesized that their dental features would be distinctive and investigated the tooth characteristics of four patients with different SDs. MATERIAL AND METHODS Four SD patients with molecularly confirmed diagnoses, Pt-1 acromicric dysplasia, Pt-2 hypophosphatasia and hypochondroplasia, Pt-3 cleidocranial dysplasia, and Pt-4 achondroplasia, were recruited. A tooth from each patient was evaluated for mineral density (micro-computerized tomography), surface roughness (surface profilometer), microhardness, mineral contents (energy-dispersive X-ray), and ultrastructure (scanning electron microscopy and histology), and compared with three tooth-type matched controls. RESULTS Pt-1 and Pt-3 had several unerupted teeth. Pt-2 had an intact-root-exfoliated tooth at 2 years old. The lingual surfaces of the patients' teeth were significantly smoother, while their buccal surfaces were rougher, than controls, except for Pt-1's buccal surface. The patients' teeth exhibited deep grooves around the enamel prisms and rough intertubular dentin. Pt-3 demonstrated a flat dentinoenamel junction and Pt-2 had an enlarged pulp, barely detectable cementum layer, and ill-defined cemento-dentinal junction. Reduced microhardnesses in enamel, dentin, and both layers were observed in Pt-3, Pt-4, and Pt-1, respectively. Pt-1 showed reduced Ca/P ratio in dentin, while both enamel and dentin of Pt-2 and Pt-3 showed reduced Ca/P ratio. CONCLUSION Each SD has distinctive dental characteristics with changes in surface roughness, ultrastructure, and mineral composition of dental hard tissues. CLINICAL RELEVANCE In this era of precision dentistry, identifying the specific potential dental problems for each patient with SD would help personalize dental management guidelines.
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Affiliation(s)
- Worasap Tantibhaedhyangkul
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jenjira Tantrapornpong
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nuttanun Yutchawit
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanakorn Theerapanon
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Narin Intarak
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sermporn Thaweesapphithak
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thantrira Porntaveetus
- Center of Excellence in Genomics and Precision Dentistry, Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
| | - Vorasuk Shotelersuk
- Center of Excellence for Medical Genomics, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
- Excellence Center for Genomics and Precision Medicine, King Chulalongkorn Memorial Hospital, the Thai Red Cross Society, Bangkok, 10330, Thailand
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Tong X, Zhang Y, Zhao Y, Li Y, Li T, Zou H, Yuan Y, Bian J, Liu Z, Gu J. Vitamin D Alleviates Cadmium-Induced Inhibition of Chicken Bone Marrow Stromal Cells' Osteogenic Differentiation In Vitro. Animals (Basel) 2023; 13:2544. [PMID: 37570352 PMCID: PMC10417335 DOI: 10.3390/ani13152544] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Vitamin D is a lipid soluble vitamin that is mostly used to treat bone metabolism-related diseases. In this study, the effect of Cd toxicity in vitro on osteogenic differentiation derived from BMSCs and the alleviating effect of lα, 25-(OH)2D3 were investigated. Cell index in real time was monitored using a Real-time cell analyzer (RTCA) system. The activity of alkaline phosphatase (ALP), and the calcified nodules and the distribution of Runx2 protein were detected using ALP staining, alizarin red staining, and immunofluorescence, respectively. Furthermore, the mitochondrial membrane potential and the apoptotic rate of BMSCs, the mRNA levels of RUNX2 and type Ⅰ collagen alpha2 (COL1A2) genes, and the protein expression of Col1 and Runx2 were detected using flow cytometry, qRT-PCR and western blot, respectively. The proliferation of BMSCs and osteogenic differentiation were enhanced after treatment with different concentrations of lα, 25-(OH)2D3 compared with the control group. However, 5 μmol/L Cd inhibited the proliferation of BMSCs. In addition, 10 nmol/L lα,25-(OH)2D3 attenuated the toxicity and the apoptosis of BMSCs treated by Cd, and also promoted the osteogenic differentiation including the activity of ALP, and the protein expression of Col1 and Runx2. lα, 25-(OH)2D3 can alleviate cadmium-induced osteogenic toxicity in White Leghorn chickens in vitro.
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Affiliation(s)
- Xishuai Tong
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Ying Zhang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China;
| | - Yutian Zhao
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Yawen Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Tan Li
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Hui Zou
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Yan Yuan
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Jianchun Bian
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Zongping Liu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
| | - Jianhong Gu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Institutes of Agricultural Science and Technology Development, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; (X.T.); (H.Z.); (Y.Y.); (J.B.)
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China
- Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China
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Huang CY, Wei PL, Batzorig U, Makondi PT, Lee CC, Chang YJ. Identification of Moesin (MSN) as a Potential Therapeutic Target for Colorectal Cancer via the β-Catenin-RUNX2 Axis. Int J Mol Sci 2023; 24:10951. [PMID: 37446127 DOI: 10.3390/ijms241310951] [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: 04/21/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
CRC is the second leading cause of cancer-related death. The complex mechanisms of metastatic CRC limit available therapeutic choice. Thus, identifying new CRC therapeutic targets is essential. Moesin (MSN), a member of the ezrin-radixin-moesin family, connects the cell membrane to the actin-based cytoskeleton and regulates cell morphology. We investigated the role of MSN in the progression of CRC. GENT2 and oncomine were used to study MSN expression and CRC patient outcomes. MSN-specific shRNAs or MSN-overexpressed plasmid were used to establish MSN-KD and MSN overexpressed cell lines, respectively. SRB, migration, wound healing, and flow cytometry were used to test cell survival and migration. Propidium iodide and annexin V stain were used to analyze the cell cycle and apoptosis. MSN expression was found to be higher in CRC tissues than in normal tissues. Higher MSN expression is associated with poor overall survival, disease-free survival, and relapse-free survival rates in CRC patients. MSN silencing inhibits cell proliferation, adhesion, migration, and invasion in vitro, whereas MSN overexpression accelerates cell proliferation, adhesion, migration, and invasion. RNA sequencing was used to investigate differentially expressed genes, and RUNX2 was discovered as a possible downstream target for MSN. In CRC patients, RUNX2 expression was significantly correlated with MSN expression. We also found that MSN silencing decreased cytoplasmic and nuclear β-catenin levels. Additionally, pharmacological inhibition of β-catenin in MSN-overexpressed cells led to a reduction of RUNX2, and activating β-catenin signaling by inhibiting GSK3β rescued the RUNX2 downregulation in MSN-KD cells. This confirms that MSN regulates RUNX2 expression via activation of β-catenin signaling. Finally, our result further determined that RUNX2 silencing reduced the ability of MSN overexpression cells to proliferate and migrate. MSN accelerated CRC progression via the β-catenin-RUNX2 axis. As a result, MSN holds the potential to become a new target for CRC treatment.
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Affiliation(s)
- Chien-Yu Huang
- School of Medicine, National Tsing Hua University, Hsinchu 30013, Taiwan
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 30013, Taiwan
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Po-Li Wei
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Cancer Research Center and Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei 11031, Taiwan
| | - Uyanga Batzorig
- Department of Dermatology, University of California, San Diego, CA 92093, USA
| | | | - Cheng-Chin Lee
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Jia Chang
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Cancer Research Center and Translational Laboratory, Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
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9
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Polydioxanone Membrane Compared with Collagen Membrane for Bone Regeneration. Polymers (Basel) 2023; 15:polym15040868. [PMID: 36850154 PMCID: PMC9963858 DOI: 10.3390/polym15040868] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/19/2023] [Accepted: 01/31/2023] [Indexed: 02/12/2023] Open
Abstract
Guided bone regeneration (GBR) is an approach that induces osteopromotion through the regenerative membranes. These barriers exhibit bioactive behavior and mechanical function. Polydioxanone is a synthetic option, already used in medicine and dentistry, with good results in bone regeneration. This study aimed to evaluate bone repair in critical defects in rat calvaria using a polydioxanone membrane (Plenum® Guide) compared with a commercially available collagen-based membrane (Bio-Gide®). The bone defects were filled with Plenum® Osshp, a synthetic bone graft, hydroxyapatite:β-tricalcium phosphate, 70:30%, Group PG (Plenum® Guide + Plenum® Osshp), and Group BG (Geistlich Bio-Gide® + Plenum® Osshp). The specimens were submitted to immunohistochemical (RUNX2 and OPN), gene expression (RUNX2, IBSP, and VEGF), histometric, and microtomography analyses after 07, 15, 30, and 60 days postoperative. PG group showed greater immunolabeling area for RUNX2 and OPN, higher gene expression of VEGF (3.15 ± 0.85), and IBSP (24.9 ± 0.59). However, there was no statistical difference between groups in the histometric analysis regarding the percentage of connective tissue PG (0.83 ± 0.45), BG (0.70 ± 0.34), neoformed bone PG (0.60 ± 0.4), BG (0.65 ± 0.51), and remaining biomaterial PG (0.84 ± 0.31), BG (0.91 ± 0.33). In addition, there was no statistical difference between groups by micro-CT analysis. The absorbable-synthetic membrane, Plenum® Guide, is an effective membrane for guided bone regeneration.
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10
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Alghfeli L, Parambath D, Tag Eldeen LA, El-Serafi I, El-Serafi AT. Non-additive effect of the DNA methylation inhibitor, 5-Aza-dC, and glass as a culture surface on osteogenic differentiation. Heliyon 2022; 8:e12433. [PMID: 36590514 PMCID: PMC9794900 DOI: 10.1016/j.heliyon.2022.e12433] [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: 05/03/2022] [Revised: 08/31/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
The clinical need for bone regenerative solutions is expanding with increasing life expectancy and escalating incidence of accidents. Several strategies are being investigated to enhance the osteogenic differentiation of stem cells. We previously reported two different approaches for this purpose, in monolayer and three-dimensional cell culture. The first approach was based on pretreating cells with 5-Aza-dC, a DNA methylation inhibitor, before the applying the differentiation media. The second approach was based on culturing cells on a glass surface during differentiation. In this study, we investigated the potential effect of combining both methods. Our results suggested that both approaches were associated with decreasing global DNA methylation levels. Cells cultured as a monolayer on glass surface showed enhancement in alkaline phosphatase activity at day 10, while 5-Aza-dC pretreatment enhanced the activity at day 5, irrespective of the culture surface. In three-dimensional pellet culture, 5-Aza-dC pretreatment enhanced osteogenesis through Runx-2 and TGF-β1 upregulation while the glass surface induced Osterix. Furthermore, pellets cultured on glass showed upregulation of a group of miRNAs, including pro-osteogenesis miR- 20a and miR -148b and anti-osteogenesis miR -125b, miR -31, miR -138, and miR -133a. Interestingly, 5-Aza-dC was not associated with a change of miRNAs in cells cultured on tissue culture plastic but reverted the upregulated miRNAs on the glass to the basal level. This study confirms the two approaches for enhancing osteogenic differentiation and contradicts their combination.
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Affiliation(s)
- Latifa Alghfeli
- Research Institute for Medical and Health Sciences, University of Sharjah, United Arab Emirates
| | - Divyasree Parambath
- Research Institute for Medical and Health Sciences, University of Sharjah, United Arab Emirates
| | - Loaa A. Tag Eldeen
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Suez Canal University, Egypt
| | - Ibrahim El-Serafi
- Basic Medical Sciences Department, College of Medicine, Ajman University, United Arab Emirates,Department of Biochemistry, Faculty of Medicine, Port-Said University, Egypt
| | - Ahmed T. El-Serafi
- Research Institute for Medical and Health Sciences, University of Sharjah, United Arab Emirates,Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Suez Canal University, Egypt,Department of Biomedical and Clinical Sciences, Linköping University, Sweden,Corresponding author.
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11
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Daprà V, Alotto D, Casarin S, Gambarino S, Zavatto C, Dini M, Galliano I, Castagnoli C, Bergallo M. A new protocol for validation of Chondro, Adipo and Osteo differentiation kit of Cultured Adipose-Derived Stem Cells (ADSC) by real-time rt-QPCR. Tissue Cell 2022; 79:101923. [DOI: 10.1016/j.tice.2022.101923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/07/2022] [Accepted: 09/07/2022] [Indexed: 10/14/2022]
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12
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Beyltjens T, Boudin E, Revencu N, Boeckx N, Bertrand M, Schütz L, Haack TB, Weber A, Biliouri E, Vinkšel M, Zagožen A, Peterlin B, Pai S, Telegrafi A, Henderson LB, Ells C, Turner L, Wuyts W, Van Hul W, Hendrickx G, Mortier GR. Heterozygous pathogenic variants involving CBFB cause a new skeletal disorder resembling cleidocranial dysplasia. J Med Genet 2022; 60:498-504. [PMID: 36241386 PMCID: PMC10176335 DOI: 10.1136/jmg-2022-108739] [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: 06/29/2022] [Accepted: 09/03/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Cleidocranial dysplasia (CCD) is a rare skeletal dysplasia with significant clinical variability. Patients with CCD typically present with delayed closure of fontanels and cranial sutures, dental anomalies, clavicular hypoplasia or aplasia and short stature. Runt-related transcription factor 2 (RUNX2) is currently the only known disease-causing gene for CCD, but several studies have suggested locus heterogeneity. METHODS The cohort consists of eight subjects from five unrelated families partially identified through GeneMatcher. Exome or genome sequencing was applied and in two subjects the effect of the variant was investigated at RNA level. RESULTS In each subject a heterozygous pathogenic variant in CBFB was detected, whereas no genomic alteration involving RUNX2 was found. Three CBFB variants (one splice site alteration, one nonsense variant, one 2 bp duplication) were shown to result in a premature stop codon. A large intragenic deletion was found to delete exon 4, without affecting CBFB expression. The effect of a second splice site variant could not be determined but most likely results in a shortened or absent protein. Affected individuals showed similarities with RUNX2-related CCD, including dental and clavicular abnormalities. Normal stature and neurocognitive problems were however distinguishing features. CBFB encodes the core-binding factor β subunit, which can interact with all RUNX proteins (RUNX1, RUNX2, RUNX3) to form heterodimeric transcription factors. This may explain the phenotypic differences between CBFB-related and RUNX2-related CCD. CONCLUSION We confirm the previously suggested locus heterogeneity for CCD by identifying five pathogenic variants in CBFB in a cohort of eight individuals with clinical and radiographic features reminiscent of CCD.
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Affiliation(s)
- Tessi Beyltjens
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Eveline Boudin
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Nicole Revencu
- Center for Human Genetics, Cliniques universitaires Saint-Luc and University of Louvain, Brussels, Belgium
| | - Nele Boeckx
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Miriam Bertrand
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Leon Schütz
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Tobias B Haack
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Axel Weber
- Institute of Human Genetics, Justus Liebig University, Giessen, Germany
| | - Eleni Biliouri
- Institute of Human Genetics, Justus Liebig University, Giessen, Germany
| | - Mateja Vinkšel
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana Division of Internal Medicine, Ljubljana, Slovenia
| | - Anja Zagožen
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana Division of Internal Medicine, Ljubljana, Slovenia
| | - Borut Peterlin
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana Division of Internal Medicine, Ljubljana, Slovenia
| | - Shashidhar Pai
- Children's Health, Division of Genetics, Medical University of South Carolina, Charleston, South Carolina, USA
| | | | | | - Courtney Ells
- Provincial Medical Genetics Program, Eastern Health, St. John's, Newfoundland, Canada
| | - Lesley Turner
- Provincial Medical Genetics Program, Eastern Health, St. John's, Newfoundland, Canada.,Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Wim Wuyts
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Wim Van Hul
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Gretl Hendrickx
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium .,Department of Human Genetics, KU Leuven, Leuven, Belgium
| | - Geert R Mortier
- Department of Medical Genetics, University of Antwerp, Antwerp, Belgium.,Department of Human Genetics, KU Leuven, Leuven, Belgium.,Center for Human Genetics, University Hospital Leuven, Leuven, Belgium
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13
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Hasina Z, Wang N, Wang CC. Developmental Neuropathology and Neurodegeneration of Down Syndrome: Current Knowledge in Humans. Front Cell Dev Biol 2022; 10:877711. [PMID: 35676933 PMCID: PMC9168127 DOI: 10.3389/fcell.2022.877711] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/18/2022] [Indexed: 12/25/2022] Open
Abstract
Individuals with Down syndrome (DS) suffer from developmental delay, intellectual disability, and an early-onset of neurodegeneration, Alzheimer’s-like disease, or precocious dementia due to an extra chromosome 21. Studying the changes in anatomical, cellular, and molecular levels involved may help to understand the pathogenesis and develop target treatments, not just medical, but also surgical, cell and gene therapy, etc., for individuals with DS. Here we aim to identify key neurodevelopmental manifestations, locate knowledge gaps, and try to build molecular networks to better understand the mechanisms and clinical importance. We summarize current information about the neuropathology and neurodegeneration of the brain from conception to adulthood of foetuses and individuals with DS at anatomical, cellular, and molecular levels in humans. Understanding the alterations and characteristics of developing Down syndrome will help target treatment to improve the clinical outcomes. Early targeted intervention/therapy for the manifestations associated with DS in either the prenatal or postnatal period may be useful to rescue the neuropathology and neurodegeneration in DS.
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Affiliation(s)
- Zinnat Hasina
- Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Nicole Wang
- School of Veterinary Medicine, Glasgow University, Glasgow, United Kingdom
| | - Chi Chiu Wang
- Department of Obstetrics & Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- Li Ka Shing Institute of Health Sciences, School of Biomedical Sciences, Chinese University of Hong Kong -Sichuan University Joint Laboratory in Reproductive Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
- *Correspondence: Chi Chiu Wang,
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14
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Mendes BC, Pereira RDS, Mourão CFDAB, Montemezzi P, Santos AMDS, Moreno JML, Okamoto R, Hochuli-Vieira E. Evaluation of Two Beta-Tricalcium Phosphates with Different Particle Dimensions in Human Maxillary Sinus Floor Elevation: A Prospective, Randomized Clinical Trial. MATERIALS 2022; 15:ma15051824. [PMID: 35269056 PMCID: PMC8911852 DOI: 10.3390/ma15051824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/16/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022]
Abstract
This study aimed to compare two beta-tricalcium phosphates with different particle sizes in human maxillary sinuses lifting. The immunolabeling of cells for RUNX2 and VEGF were performed to evaluate the osteoblast precursor cells and the vascular formation after 6 months of bone repair. Ten maxillary sinuses were grafted with autogenous bone graft (Group 1), 10 were grafted with ChronOs® (Group 2), and 10 were grafted with BETA-TCP® (Group 3). After 6 months of bone healing, biopsies were obtained to assess the new bone formed by histomorphometric and immunohistochemical evaluation for RUNX2 and VEGF. The mean bone formation for Group 1 was 51.4 ± 17.4%. Group 2 presented 45.5 ± 9.9%, and Group 3 conferred 35.4 ± 8.0% of new bone formation. The RUNX2 offered low for Groups 1 and 2 with high cellular activity for osteoblast in Group 3. The VEGF immunolabeling was moderate for Groups 1 and 2 and intense for Group 3. In conclusion, it was possible to show that the bone substitutes evaluated in the present study presented suitable outcomes for bone regeneration, being an alternative for the autogenous bone graft in maxillary sinus bone height reconstruction.
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Affiliation(s)
- Bruno Coelho Mendes
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
- Correspondence: (B.C.M.); (C.F.d.A.B.M.); Tel.: +55-(18)-36363270 (B.C.M.); +1-(941)-830-1302 (C.F.d.A.B.M.)
| | - Rodrigo dos Santos Pereira
- Department of Oral & Maxillofacial Surgery, University of Grande Rio—UNIGRANRIO, Rio de Janeiro 25071-202, Brazil;
| | - Carlos Fernando de Almeida Barros Mourão
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, Niteroi 24033-900, Brazil;
- Correspondence: (B.C.M.); (C.F.d.A.B.M.); Tel.: +55-(18)-36363270 (B.C.M.); +1-(941)-830-1302 (C.F.d.A.B.M.)
| | - Pietro Montemezzi
- Clinical Research Unit of the Antonio Pedro Hospital, Fluminense Federal University, Niteroi 24033-900, Brazil;
| | - Anderson Maikon de Souza Santos
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
| | - Jéssica Monique Lopes Moreno
- Department of Dental Prosthesis, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil;
| | - Roberta Okamoto
- Department of Human Anatomy, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil;
| | - Eduardo Hochuli-Vieira
- Department of Oral & Maxillofacial Surgery, Aracatuba School of Dentistry, Sao Paulo State University, Sao Paulo 16066-840, Brazil; (A.M.d.S.S.); (E.H.-V.)
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15
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THAWEESAPPHITHAK S, SAENGSIN J, KAMOLVISIT W, THEERAPANON T, PORNTAVEETUS T, SHOTELERSUK V. Cleidocranial dysplasia and novel RUNX2 variants: dental, craniofacial, and osseous manifestations. J Appl Oral Sci 2022; 30:e20220028. [PMID: 35674542 PMCID: PMC9239300 DOI: 10.1590/1678-7757-2022-0028] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/08/2022] [Indexed: 11/30/2022] Open
Abstract
Cleidocranial dysplasia (CCD) is a skeletal disorder affecting cranial sutures, teeth, and clavicles, and is associated with the
RUNX2
mutations. Although numerous patients have been described, a direct genotype–phenotype correlation for
RUNX2
has been difficult to establish. Further cases must be studied to understand the clinical and genetic spectra of CCD.
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Affiliation(s)
| | | | | | | | | | - Vorasuk SHOTELERSUK
- Chulalongkorn University, Thailand; King Chulalongkorn Memorial Hospital, Thailand
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16
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MicroRNA Hsa-Let-7b Regulates the Osteogenic Differentiation of Human Periodontal Ligament Stem Cells by Targeting CTHRC1. Stem Cells Int 2021; 2021:5791181. [PMID: 34950211 PMCID: PMC8692051 DOI: 10.1155/2021/5791181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/23/2021] [Indexed: 01/23/2023] Open
Abstract
Let-7 miRNA family has been proved as a key regulator of mesenchymal stem cells' (MSCs') biological features. However, whether let-7b could affect the differentiation or proliferation of periodontal ligament stem cells (PDLSCs) is still unknown. Here, we found that the expression of hsa-let-7b was visibly downregulated after mineralization induction of PDLSCs. After transfected with hsa-let-7b mimics or inhibitor reagent, the proliferation ability of PDLSCs was detected by cell counting kit-8 (CCK-8), flow cytometry, and 5-ethynyl-2-deoxyuridine (EdU) assay. On the other hand, the osteogenic differentiation capacity was detected by alkaline phosphatase (ALP) staining and activity, alizarin red staining, Western blot, and quantitative real-time reverse-transcription polymerase chain reaction (qRT-PCR). We verified that hsa-let-7b did not significantly impact the proliferation ability of PDLSCs, but it could curb the osteogenic differentiation of PDLSCs. Besides, we predicted CTHRC1 acts as the downstream gene of hsa-let-7b to affect this process. Moreover, the combination of CTHRC1 and hsa-let-7b was verified by dual luciferase reporter assay. Our results demonstrated that the osteogenic differentiation of PDLSCs was enhanced after inhibiting hsa-let-7b, while was weakened after cotransfection with Si-CTHRC1. Collectively, hsa-let-7b can repress the osteogenic differentiation of PDLSCs by regulating CTHRC1.
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17
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Inchingolo AD, Patano A, Coloccia G, Ceci S, Inchingolo AM, Marinelli G, Malcangi G, Montenegro V, Laudadio C, Palmieri G, Bordea IR, Ponzi E, Orsini P, Ficarella R, Scarano A, Lorusso F, Dipalma G, Corsalini M, Gentile M, Venere DD, Inchingolo F. Genetic Pattern, Orthodontic and Surgical Management of Multiple Supplementary Impacted Teeth in a Rare, Cleidocranial Dysplasia Patient: A Case Report. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:1350. [PMID: 34946295 PMCID: PMC8709258 DOI: 10.3390/medicina57121350] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/30/2021] [Accepted: 12/08/2021] [Indexed: 12/12/2022]
Abstract
Background: Cleidocranial dysplasia (CCD) is a rare, autosomal dominant skeletal dysplasia with a prevalence of one per million births. The main causes of CCD are mutations in the core-binding factor alpha-1 (CBFA1) or runt-related transcription factor-2 (RUNX2), located at the 6p21 chromosomal region. RUNX2 plays important roles in osteoblast differentiation, chondrocyte proliferation and differentiation, and tooth formation. The disease is characterized by clavicular aplasia or hypoplasia, Wormian bones, delayed closure of cranial suture, brachycephalic head, maxillary deficiency, retention of primary teeth, inclusion of permanent teeth, and multiple supernumerary teeth. Materials and Methods: A 22-year-old girl suffering from cleidocranial dysplasia with short stature, narrow shoulders, craniofacial manifestations (short face, broad forehead, etc.) and dental anomalies (different lower dental elements under eruption, supernumerary and impacted multiple teeth, etc.) was examined at our service (Complex Operative Unit of Odontostomatology of Policlinico of Bari). RX Orthopantomography (OPG) and cone beam computed tomography (CBCT) were requested to better assess the position of the supernumerary teeth and their relationships with others and to evaluate the bone tissue. Results: Under eruption was probably caused by dental interferences with supernumerary teeth; hence, extractions of supernumerary upper canines and lower premolars were performed under general anaesthesia. Surgery outcome was excellent with good tissue healing and improvements in the therapeutic possibilities with future orthodontics. Conclusions: The objective of this article is to give an update about radiological, clinical, and molecular features of CCD and to alert the health team about the importance of establishing an early diagnosis and an appropriate treatment in these patients to prevent impacted teeth complications and to offer them a better quality of life.
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Affiliation(s)
- Alessio Danilo Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Assunta Patano
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Giovanni Coloccia
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Sabino Ceci
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Angelo Michele Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Grazia Marinelli
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Giuseppina Malcangi
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Valentina Montenegro
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Claudia Laudadio
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Giulia Palmieri
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Ioana Roxana Bordea
- Department of Oral Rehabilitation, Faculty of Dentistry, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Emanuela Ponzi
- Medical Genetics Unit, Department of Human Reproductive Medicine, ASL Bari, 70121 Bari, Italy; (E.P.); (P.O.); (R.F.); (M.G.)
| | - Paola Orsini
- Medical Genetics Unit, Department of Human Reproductive Medicine, ASL Bari, 70121 Bari, Italy; (E.P.); (P.O.); (R.F.); (M.G.)
| | - Romina Ficarella
- Medical Genetics Unit, Department of Human Reproductive Medicine, ASL Bari, 70121 Bari, Italy; (E.P.); (P.O.); (R.F.); (M.G.)
| | - Antonio Scarano
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Felice Lorusso
- Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy;
| | - Gianna Dipalma
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Massimo Corsalini
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Mattia Gentile
- Medical Genetics Unit, Department of Human Reproductive Medicine, ASL Bari, 70121 Bari, Italy; (E.P.); (P.O.); (R.F.); (M.G.)
| | - Daniela Di Venere
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy; (A.D.I.); (A.P.); (G.C.); (S.C.); (A.M.I.); (G.M.); (G.M.); (V.M.); (C.L.); (G.P.); (G.D.); (M.C.); (D.D.V.)
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18
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Li M, Banton MC, Min Q, Parkinson DB, Dun X. Meta-Analysis Reveals Transcription Factor Upregulation in Cells of Injured Mouse Sciatic Nerve. Front Cell Neurosci 2021; 15:688243. [PMID: 34744629 PMCID: PMC8567084 DOI: 10.3389/fncel.2021.688243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 09/30/2021] [Indexed: 11/13/2022] Open
Abstract
Following peripheral nerve injury, transcription factors upregulated in the distal nerve play essential roles in Schwann cell reprogramming, fibroblast activation and immune cell function to create a permissive distal nerve environment for axonal regrowth. In this report, we first analysed four microarray data sets to identify transcription factors that have at least twofold upregulation in the mouse distal nerve stump at day 3 and day 7 post-injury. Next, we compared their relative mRNA levels through the analysis of an available bulk mRNA sequencing data set at day 5 post-injury. We then investigated the expression of identified TFs in analysed single-cell RNA sequencing data sets for the distal nerve at day 3 and day 9 post-injury. These analyses identified 55 transcription factors that have at least twofold upregulation in the distal nerve following mouse sciatic nerve injury. Expression profile for the identified 55 transcription factors in cells of the distal nerve stump was further analysed on the scRNA-seq data. Transcription factor network and functional analysis were performed in Schwann cells. We also validated the expression pattern of Jun, Junb, Runx1, Runx2, and Sox2 in the mouse distal nerve stump by immunostaining. The findings from our study not only could be used to understand the function of key transcription factors in peripheral nerve regeneration but also could be used to facilitate experimental design for future studies to investigate the function of individual TFs in peripheral nerve regeneration.
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Affiliation(s)
- Mingchao Li
- Department of Neurology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Matthew C Banton
- School of Biomedical Science, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - Qing Min
- School of Pharmacy, Hubei University of Science and Technology, Xianning, China
| | - David B Parkinson
- Peninsula Medical School, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
| | - Xinpeng Dun
- School of Pharmacy, Hubei University of Science and Technology, Xianning, China.,The Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China
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19
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Massé K, Bhamra S, Paroissin C, Maneta-Peyret L, Boué-Grabot E, Jones EA. The enpp4 ectonucleotidase regulates kidney patterning signalling networks in Xenopus embryos. Commun Biol 2021; 4:1158. [PMID: 34620987 PMCID: PMC8497618 DOI: 10.1038/s42003-021-02688-9] [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: 03/17/2021] [Accepted: 09/17/2021] [Indexed: 11/30/2022] Open
Abstract
The enpp ectonucleotidases regulate lipidic and purinergic signalling pathways by controlling the extracellular concentrations of purines and bioactive lipids. Although both pathways are key regulators of kidney physiology and linked to human renal pathologies, their roles during nephrogenesis remain poorly understood. We previously showed that the pronephros was a major site of enpp expression and now demonstrate an unsuspected role for the conserved vertebrate enpp4 protein during kidney formation in Xenopus. Enpp4 over-expression results in ectopic renal tissues and, on rare occasion, complete mini-duplication of the entire kidney. Enpp4 is required and sufficient for pronephric markers expression and regulates the expression of RA, Notch and Wnt pathway members. Enpp4 is a membrane protein that binds, without hydrolyzing, phosphatidylserine and its effects are mediated by the receptor s1pr5, although not via the generation of S1P. Finally, we propose a novel and non-catalytic mechanism by which lipidic signalling regulates nephrogenesis. Massé and colleagues identify enpp4 as a key regulator in the development of the kidney in Xenopus. The gene signalling pathways regulated by this ectonucleotidase are described and lipidic signalling regulatory mechanisms are explored.
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Affiliation(s)
- Karine Massé
- School of Life Sciences, Warwick University, Coventry, CV47AL, UK. .,Université de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000, Bordeaux, France. .,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000, Bordeaux, France.
| | - Surinder Bhamra
- School of Life Sciences, Warwick University, Coventry, CV47AL, UK
| | - Christian Paroissin
- Université de Pau et des Pays de l'Adour, Laboratoire de Mathématiques et de leurs Applications-UMR CNRS 5142, 64013, Pau cedex, France
| | - Lilly Maneta-Peyret
- Université de Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire UMR 5200, F-33800, Villenave d'Ornon, France
| | - Eric Boué-Grabot
- Université de Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, F-33000, Bordeaux, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, F-33000, Bordeaux, France
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20
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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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21
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Polo Like Kinase 4 (PLK4) impairs human bone marrow mesenchymal stem cell (BMSC) viability and osteogenic differentiation. Biochem Biophys Res Commun 2021; 549:221-228. [PMID: 33706192 DOI: 10.1016/j.bbrc.2021.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 02/07/2021] [Indexed: 12/12/2022]
Abstract
Human bone marrow mesenchymal stem cell (hBMSC) viability and osteogenic differentiation play a critical role in bone disorders such as osteoporosis. In the present study, we identified the aberrant PLK4 upregulation in osteoporosis and downregulation in BMSCs during osteogenic differentiation. In isolated hBMSCs, PLK4 overexpression significantly inhibited, whereas PLK4 knockdown promoted cell viability and hBMSC osteogenic differentiation. For molecular mechanism, PLK4 overexpression decreased, whereas PLK4 knockdown increased WNT1 and β-catenin protein levels and the phosphorylation of Smad1/5/8. The Wnt/β-catenin signaling antagonist Dickkopf 1 (DKK1) or the BMP-Smads antagonist LDN193189 dramatically suppressed hBMSC osteoblast differentiation, and partially attenuated the promotive effects of PLK4 knockdown on hBMSC osteogenic differentiation. Altogether, PLK4 overexpression impairs hBMSC viability and osteogenic differentiation potential, possibly through the Wnt/β-catenin signaling and BMP/Smads signaling.
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22
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Newton AH, Pask AJ. Evolution and expansion of the RUNX2 QA repeat corresponds with the emergence of vertebrate complexity. Commun Biol 2020; 3:771. [PMID: 33319865 PMCID: PMC7738678 DOI: 10.1038/s42003-020-01501-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 11/10/2020] [Indexed: 11/08/2022] Open
Abstract
Runt-related transcription factor 2 (RUNX2) is critical for the development of the vertebrate bony skeleton. Unlike other RUNX family members, RUNX2 possesses a variable poly-glutamine, poly-alanine (QA) repeat domain. Natural variation within this repeat is able to alter the transactivation potential of RUNX2, acting as an evolutionary 'tuning knob' suggested to influence mammalian skull shape. However, the broader role of the RUNX2 QA repeat throughout vertebrate evolution is unknown. In this perspective, we examine the role of the RUNX2 QA repeat during skeletal development and discuss how its emergence and expansion may have facilitated the evolution of morphological novelty in vertebrates.
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Affiliation(s)
- Axel H Newton
- Biosciences 4, The School of Biosciences, The University of Melbourne, Royal Parade, Parkville, VIC, 3052, Australia.
- Anatomy and Developmental Biology, The School of Biomedical Sciences, Monash University, Clayton, VIC, 3800, Australia.
| | - Andrew J Pask
- Biosciences 4, The School of Biosciences, The University of Melbourne, Royal Parade, Parkville, VIC, 3052, Australia
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23
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Kim KT, Lee YS, Han I. The Role of Epigenomics in Osteoporosis and Osteoporotic Vertebral Fracture. Int J Mol Sci 2020; 21:E9455. [PMID: 33322579 PMCID: PMC7763330 DOI: 10.3390/ijms21249455] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 12/29/2022] Open
Abstract
Osteoporosis is a complex multifactorial condition of the musculoskeletal system. Osteoporosis and osteoporotic vertebral fracture (OVF) are associated with high medical costs and can lead to poor quality of life. Genetic factors are important in determining bone mass and structure, as well as any predisposition for bone degradation and OVF. However, genetic factors are not enough to explain osteoporosis development and OVF occurrence. Epigenetics describes a mechanism for controlling gene expression and cellular processes without altering DNA sequences. The main mechanisms in epigenetics are DNA methylation, histone modifications, and non-coding RNAs (ncRNAs). Recently, alterations in epigenetic mechanisms and their activity have been associated with osteoporosis and OVF. Here, we review emerging evidence that epigenetics contributes to the machinery that can alter DNA structure, gene expression, and cellular differentiation during physiological and pathological bone remodeling. A progressive understanding of normal bone metabolism and the role of epigenetic mechanisms in multifactorial osteopathy can help us better understand the etiology of the disease and convert this information into clinical practice. A deep understanding of these mechanisms will help in properly coordinating future individual treatments of osteoporosis and OVF.
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Affiliation(s)
- Kyoung-Tae Kim
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (K.-T.K.); (Y.-S.L.)
- Department of Neurosurgery, Kyungpook National University Hospital, Daegu 41944, Korea
| | - Young-Seok Lee
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (K.-T.K.); (Y.-S.L.)
- Department of Neurosurgery, Kyungpook National University Chilgok Hospital, Daegu 41944, Korea
| | - Inbo Han
- Department of Neurosurgery, CHA University School of medicine, CHA Bundang Medical Center, Seongnam-si, Gyeonggi-do 13496, Korea
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24
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Daneshjoo O, Ebrahimi P, Salehi LB, Pizzuti A, Garshasbi M. Identification of a novel RUNX2 gene mutation and early diagnosis of CCD in a cleidocranial dysplasia suspected Iranian family. Clin Case Rep 2020; 8:2333-2340. [PMID: 33363735 PMCID: PMC7752336 DOI: 10.1002/ccr3.2825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 12/01/2019] [Accepted: 03/13/2020] [Indexed: 11/28/2022] Open
Abstract
This research resulted in the identification and submission of a novel RUNX2 gene mutation in the affected members of the studied pedigree. Mutation screening is an effective method for the early diagnosis of CCD in the affected individuals.
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Affiliation(s)
- Omid Daneshjoo
- Medical Genetics GroupDepartment of Experimental Medicine“Sapienza’’ University of RomeRomeItaly
- Medical Genetics DepartmentDeNA LaboratoryTehranIran
- U.O.C. of Medical GeneticsPoliclinic of Tor VergataRomeItaly
| | - Pirooz Ebrahimi
- Universal Scientific Education and Research NetworkTehranIran
| | - Leila B. Salehi
- U.O.C. of Medical GeneticsPoliclinic of Tor VergataRomeItaly
| | - Antonio Pizzuti
- Medical Genetics GroupDepartment of Experimental Medicine“Sapienza’’ University of RomeRomeItaly
| | - Masoud Garshasbi
- Medical Genetics DepartmentDeNA LaboratoryTehranIran
- Department of Medical GeneticsFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
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25
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Stokic-Trtica V, Diefenbach A, Klose CSN. NK Cell Development in Times of Innate Lymphoid Cell Diversity. Front Immunol 2020; 11:813. [PMID: 32733432 PMCID: PMC7360798 DOI: 10.3389/fimmu.2020.00813] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 04/08/2020] [Indexed: 12/31/2022] Open
Abstract
After being described in the 1970s as cytotoxic cells that do not require MHC-dependent pre-activation, natural killer (NK) cells remained the sole member of innate lymphocytes for decades until lymphoid tissue-inducer cells in the 1990s and helper-like innate lymphoid lineages from 2008 onward completed the picture of innate lymphoid cell (ILC) diversity. Since some of the ILC members, such as ILC1s and CCR6- ILC3s, share specific markers previously used to identify NK cells, these findings provoked the question of how to delineate the development of NK cell and helper-like ILCs and how to properly identify and genetically interfere with NK cells. The description of eomesodermin (EOMES) as a lineage-specifying transcription factor of NK cells provided a candidate that may serve as a selective marker for the genetic targeting and identification of NK cells. Unlike helper-like ILCs, NK cell activation is, to a large degree, regulated by the engagement of activating and inhibitory surface receptors. NK cell research has revealed some elegant mechanisms of immunosurveillance, coined "missing-self" and "induced-self" recognition, thus complementing "non-self recognition", which is predominantly utilized by adaptive lymphocytes and myeloid cells. Notably, the balance of activating and inhibitory signals perceived by surface receptors can be therapeutically harnessed for anti-tumor immunity mediated by NK cells. This review aims to summarize the similarities and the differences in development, function, localization, and phenotype of NK cells and helper-like ILCs, with the purpose to highlight the unique feature of NK cell development and regulation.
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Affiliation(s)
- Vladislava Stokic-Trtica
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Max-Planck Institute for Infection Biology, Berlin, Germany
| | - Andreas Diefenbach
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Mucosal and Developmental Immunology, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Christoph S N Klose
- Department of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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26
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Human amnion-derived mesenchymal stem cells promote osteogenic differentiation of human bone marrow mesenchymal stem cells via H19/miR-675/APC axis. Aging (Albany NY) 2020; 12:10527-10543. [PMID: 32434960 PMCID: PMC7346082 DOI: 10.18632/aging.103277] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/17/2020] [Indexed: 12/29/2022]
Abstract
Bone volume inadequacy is an emerging clinical problem impairing the feasibility and longevity of dental implants. Human bone marrow mesenchymal stem cells (HBMSCs) have been widely used in bone remodeling and regeneration. This study examined the effect of long noncoding RNAs (lncRNAs)-H19 on the human amnion-derived mesenchymal stem cells (HAMSCs)-droved osteogenesis in HBMSCs. HAMSCs and HBMSCs were isolated from abandoned amniotic membrane samples and bone marrow. The coculture system was conducted using transwells, and H19 level was measured by quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR). The mechanism was further verified. We here discovered that osteogenesis of HBMSCs was induced by HAMSCs, while H19 level in HAMSCs was increased during coculturing. H19 had no significant effect on the proliferative behaviors of HBMSCs, while its overexpression of H19 in HAMSCs led to the upregulated osteogenesis of HBMSCs in vivo and in vitro; whereas its knockdown reversed these effects. Mechanistically, H19 promoted miR-675 expression and contributed to the competitively bounding of miR-675 and Adenomatous polyposis coli (APC), thus significantly activating the Wnt/β-catenin pathway. The results suggested that HAMSCs promote osteogenic differentiation of HBMSCs via H19/miR-675/APC pathway, and supply a potential target for the therapeutic treatment of bone-destructive diseases.
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27
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Jacques C, Tesfaye R, Lavaud M, Georges S, Baud’huin M, Lamoureux F, Ory B. Implication of the p53-Related miR-34c, -125b, and -203 in the Osteoblastic Differentiation and the Malignant Transformation of Bone Sarcomas. Cells 2020; 9:cells9040810. [PMID: 32230926 PMCID: PMC7226610 DOI: 10.3390/cells9040810] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 02/07/2023] Open
Abstract
The formation of the skeleton occurs throughout the lives of vertebrates and is achieved through the balanced activities of two kinds of specialized bone cells: the bone-forming osteoblasts and the bone-resorbing osteoclasts. Impairment in the remodeling processes dramatically hampers the proper healing of fractures and can also result in malignant bone diseases such as osteosarcoma. MicroRNAs (miRNAs) are a class of small non-coding single-strand RNAs implicated in the control of various cellular activities such as proliferation, differentiation, and apoptosis. Their post-transcriptional regulatory role confers on them inhibitory functions toward specific target mRNAs. As miRNAs are involved in the differentiation program of precursor cells, it is now well established that this class of molecules also influences bone formation by affecting osteoblastic differentiation and the fate of osteoblasts. In response to various cell signals, the tumor-suppressor protein p53 activates a huge range of genes, whose miRNAs promote genomic-integrity maintenance, cell-cycle arrest, cell senescence, and apoptosis. Here, we review the role of three p53-related miRNAs, miR-34c, -125b, and -203, in the bone-remodeling context and, in particular, in osteoblastic differentiation. The second aim of this study is to deal with the potential implication of these miRNAs in osteosarcoma development and progression.
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28
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Šuštić T, Bosdriesz E, van Wageningen S, Wessels LFA, Bernards R. RUNX2/CBFB modulates the response to MEK inhibitors through activation of receptor tyrosine kinases in KRAS-mutant colorectal cancer. Transl Oncol 2019; 13:201-211. [PMID: 31865182 PMCID: PMC6931198 DOI: 10.1016/j.tranon.2019.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/10/2019] [Indexed: 10/26/2022] Open
Abstract
Intrinsic and acquired resistances are major hurdles preventing the effective use of MEK inhibitors for treatment of colorectal cancer (CRC). Some 35-45% of colorectal cancers are KRAS-mutant and their treatment remains challenging as these cancers are refractory to MEK inhibitor treatment, because of feedback activation of receptor tyrosine kinases (RTKs). We reported previously that loss of ERN1 sensitizes a subset of KRAS-mutant colon cancer cells to MEK inhibition. Here we show that the loss of RUNX2 or its cofactor CBFB can confer MEK inhibitor resistance in CRC cells. Mechanistically, we find that cells with genetically ablated RUNX2 or CBFB activate multiple RTKs, which coincides with high SHP2 phosphatase activity, a phosphatase that relays signals from the cell membrane to downstream pathways governing growth and proliferation. Moreover, we show that high activity of SHP2 is causal to loss of RUNX2-induced MEK inhibitor resistance, as a small molecule SHP2 inhibitor reinstates sensitivity to MEK inhibitor in RUNX2 knockout cells. Our results reveal an unexpected role for loss of RUNX2/CBFB in regulating RTK activity in colon cancer, resulting in reduced sensitivity to MEK inhibitors.
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Affiliation(s)
- Tonći Šuštić
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066, CX, the Netherlands
| | - Evert Bosdriesz
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066, CX, the Netherlands
| | - Sake van Wageningen
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066, CX, the Netherlands
| | - Lodewyk F A Wessels
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066, CX, the Netherlands
| | - René Bernards
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, Plesmanlaan 121, Amsterdam, 1066, CX, the Netherlands.
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29
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Song X, Song Y, Dong M, Liu Z, Wang W, Wang L, Song L. A new member of the runt domain family from Pacific oyster Crassostrea gigas (CgRunx) potentially involved in immune response and larvae hematopoiesis. FISH & SHELLFISH IMMUNOLOGY 2019; 89:228-236. [PMID: 30936046 DOI: 10.1016/j.fsi.2019.03.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 03/14/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
The Runx family is a kind of heteromeric transcription factors, which is defined by the presence of a runt domain. As transcriptional regulator during development and cell fate specification, Runx is best known for its critical roles in hematopoiesis. In the present study, a Runx transcription factor (designed as CgRunx) was identified and characterized from the oyster Crassostrea gigas. The complete coding sequence of CgRunx was of 1638 bp encoding a predicted polypeptide of 545 amino acids with one conserved runt domain, which shared high similarity with other reported Runx proteins. CgRunx was highly expressed in hemocytes, gill and mantle both at the protein and nucleic acid levels. CgRunx protein was localized specifically in the cell nuclei of hemocytes, and distributed at the tubule lumen of gill filament. During the larval developmental stages, the mRNA transcripts of CgRunx gradually increased after fertilization, reached to a relative high level at the 8 cell embryos and the blastula stage of 2-4 hpf (hours post fertilization) (about 40-fold), and peaked at early trochophore larvae (10 hpf) (about 60-fold). Whole-mount immunofluorescence assay further revealed that the abundant immunofluorescence signals of CgRunx distributed through the whole embryo at blastula stage (5 hpf), and progressively reduced with the development to a ring structure around the dorsal region in trochophore larvae (10 hpf). Scattered positive immunoreactivity signals finally appeared in the velum region of D-veliger larvae. After LPS and Vibrio splendidus stimulations, the expression levels of CgRunx mRNA in hemocytes were up-regulated significantly compared with that in the control (0 h), which were 2.98- and 2.46-fold (p < 0.05), 2.67- and 1.5-fold (p < 0.05), 2.36- and 1.38-fold (p < 0.05) at 3 h, 6 h and 12 h, respectively. These results collectively suggested that CgRunx involved in immune response and might participate in larvae hematopoiesis in oyster.
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Affiliation(s)
- Xiaorui Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Ying Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Miren Dong
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Zhaoqun Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
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30
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Jin Y, Kim HK, Lee J, Soh EY, Kim JH, Song I, Chung YS, Choi YJ. Transcription Factor HOXA9 is Linked to the Calcification and Invasion of Papillary Thyroid Carcinoma. Sci Rep 2019; 9:6773. [PMID: 31043660 PMCID: PMC6494860 DOI: 10.1038/s41598-019-43207-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/17/2019] [Indexed: 02/03/2023] Open
Abstract
Calcification is important for the diagnosis of papillary thyroid carcinoma (PTC). Runt-related transcription factor 2 (RUNX2), a master transcription factor associated with osteogenic differentiation, is reportedly related to PTC calcification and invasiveness. However, its regulatory role in this process is somewhat uncharacterized. Here, we attempted to identify genes that regulate RUNX2 and clarify its function in PTC carcinogenesis and calcification. The expression of RUNX2-upstream genes was evaluated by real-time PCR in Nthy-Ori 3-1 normal thyroid cells and TPC1 and BHP10-3 PTC cell lines. Luciferase and chromatin immunoprecipitation assays were performed with candidate genes after cloning the RUNX2 promoter. We found that RUNX2 promoter activity was enhanced by homeobox family A9 (HOXA9). Over-expression of HOXA9 was found to enhance alkaline phosphatase activity, mineralization, and in vitro tumour cell migration and invasion, whereas downregulation had the opposite effects. These results indicate that HOXA9, a positive regulator of RUNX2, can enhance calcification, migration, and invasion in PTC. Our data improve the understanding of the molecular mechanisms of microcalcification in PTC as well as tumorigenesis.
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Affiliation(s)
- Yilan Jin
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea
| | - Hyeung Kyoo Kim
- Department of Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Jeonghun Lee
- Department of Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Euy Young Soh
- Department of Surgery, Ajou University School of Medicine, Suwon, South Korea
| | - Jang-Hee Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Insun Song
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea.,School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Yoon-Sok Chung
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea
| | - Yong Jun Choi
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon, South Korea.
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Balagangadharan K, Trivedi R, Vairamani M, Selvamurugan N. Sinapic acid-loaded chitosan nanoparticles in polycaprolactone electrospun fibers for bone regeneration in vitro and in vivo. Carbohydr Polym 2019; 216:1-16. [PMID: 31047045 DOI: 10.1016/j.carbpol.2019.04.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/29/2019] [Accepted: 04/01/2019] [Indexed: 12/23/2022]
Abstract
Sinapic acid (SA) is a plant-derived phenolic compound known for its multiple biological properties, but its role in the promotion of bone formation is not yet well-studied. Moreover, the delivery of SA is hindered by its complex hydrophobic nature, limiting its bioavailability. In this study, we fabricated a drug delivery system using chitosan nanoparticles (nCS) loaded with SA at different concentrations. These were incorporated into polycaprolactone (PCL) fibers via an electrospinning method. nCS loaded with 50 μM SA in PCL fibers promoted osteoblast differentiation. Furthermore, SA treatment activated the osteogenesis signaling pathways in mouse mesenchymal stem cells. A critical-sized rat calvarial bone defect model system identified that the inclusion of SA into PCL/nCS fibers accelerated bone formation. Collectively, these data suggest that SA promoted osteoblast differentiation in vitro and bone formation in vivo, possibly by activating the TGF-β1/BMP/Smads/Runx2 signaling pathways, suggesting SA might have therapeutic benefits in bone regeneration.
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Affiliation(s)
- Kalimuthu Balagangadharan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Ritu Trivedi
- Division of Endocrinology, Central Drug Research Institute (Council of Scientific and Industrial Research), Lucknow 226031, Uttar Pradesh, India
| | - Mariappanadar Vairamani
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - Nagarajan Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India.
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Li Z, Yan M, Yu Y, Wang Y, Lei G, Pan Y, Li N, Gobin R, Yu J. LncRNA H19 promotes the committed differentiation of stem cells from apical papilla via miR-141/SPAG9 pathway. Cell Death Dis 2019; 10:130. [PMID: 30755596 PMCID: PMC6372621 DOI: 10.1038/s41419-019-1337-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/10/2018] [Accepted: 01/02/2019] [Indexed: 12/14/2022]
Abstract
Long noncoding RNAs (lncRNAs) exert significant roles at transcriptional and post-transcriptional levels. Stem cells from apical papilla (SCAPs) differentiate into dentin/bone-like tissues under certain conditions. So far, whether lncRNA-H19 can affect the proliferative behaviors and osteo/odontogenesis of SCAPs, as well as its specific mechanism remain to be elucidated. Here, SCAPs were isolated and transfected with the lentiviruses or packaging vectors. Our results showed that lncRNA-H19 had no significant effect on the proliferative behaviors of SCAPs, as presented by CCK-8 assay, EdU assay and flow cytometry (FCM). Furthermore, alkaline phosphatase (ALP) activity, alizarin red staining, Western blot assay (WB), quantitative real-time polymerase chain reaction (qRT-PCR) and in vivo bone formation assay were conducted to verify the biological influences of H19 on SCAPs. Overexpression of H19 led to the enhanced osteo/odontogenesis of SCAPs, whereas knockdown of H19 inhibited these effects. Mechanistically, H19 competitively bound to miR-141 and prevented SPAG9 from miRNA-mediated degradation, thus significantly elevating phosphorylated levels of p38 and JNK and facilitating the committed differentiation of SCAPs. Taken together, the osteo/odontogenesis of SCAPs was upregulated by overexpression of H19 via miR-141/SPAG9 pathway.
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Affiliation(s)
- Zehan Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Ming Yan
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Yan Yu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Yanqiu Wang
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Gang Lei
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Yin Pan
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Na Li
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China.,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Romila Gobin
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China
| | - Jinhua Yu
- Key Laboratory of Oral Diseases of Jiangsu Province and Stomatological Institute of Nanjing Medical University, 140 Hanzhong Road, Nanjing, Jiangsu, 210029, China. .,Endodontic Department, School of Stomatology, Nanjing Medical University, 136 Hanzhong Road, Nanjing, Jiangsu, 210029, China.
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Valassi E, García-Giralt N, Malouf J, Crespo I, Llauger J, Díez-Pérez A, Webb SM. Circulating miR-103a-3p and miR-660-5p are associated with bone parameters in patients with controlled acromegaly. Endocr Connect 2019; 8:39-49. [PMID: 30640713 PMCID: PMC6330718 DOI: 10.1530/ec-18-0482] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 12/16/2022]
Abstract
Background Biochemical control of GH/IGF-I excess in acromegaly (ACRO) is associated with persistent impairment of trabecular microstructure leading to increased risk of vertebral fractures. Circulating miRNAs modulate the activity of osteoblasts and osteoclasts, and may be potential biomarkers of osteoporosis. Aims Identify differentially expressed miRNAs in the serum of patients with controlled ACRO vs controls and correlate miRNA levels with both biochemical and structural bone parameters. Patients and methods Twenty-seven patients with controlled ACRO (11 males, 16 females; mean age, 48 ± 5 years; BMI, 28 ± 4 kg/m2) and 27 age-, gender- and BMI-matched controls were recruited. Areal BMD at lumbar spine and femur, and trabecular bone score were assessed; volumetric BMD was measured by quantitative computed tomography QCT-Pro (Mindways). Twenty miRNAs, chosen by their putative role in bone, were quantified in serum using real-time qPCR. Results In ACRO patients, miR-103a-3p and miR-191-5p were found overexpressed, whereas miR-660-5p was underexpressed (P < 0.001). miR-103a-3p levels were negatively associated with both trabecular vBMD at trochanter and serum osteoprotegerin concentrations (P < 0.05) and positively with vitamin D concentrations (P < 0.01) and total cross-sectional area of the femoral neck (P < 0.05). miR-660-5p levels were correlated with both trabecular vBMD at trochanter and OPG concentrations (P < 0.05), but were negatively associated with vitamin D levels (P < 0.05). A negative correlation between miR-103-a-3p and miR-660-5p was found in both groups (P < 0.001). Conclusions Circulating miR-103a-3p and miR-660-5p are differentially expressed in controlled ACRO patients and associated with bone structural parameters. miRNAs may be one of the mechanisms involved in the pathogenesis of bone disease and could be used as biomarkers in ACRO patients.
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Affiliation(s)
- Elena Valassi
- Endocrinology/Medicine Department, Hospital Sant Pau, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Unidad 747), IIB-Sant Pau, ISCIII and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Correspondence should be addressed to E Valassi:
| | - Natalia García-Giralt
- URFOA, IMIM (Institut Hospital del Mar d’Investigacions Mèdiques), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jorge Malouf
- Mineral Metabolism Unit, Medicine Department, Hospital Sant Pau, Barcelona, Spain
| | - Iris Crespo
- Endocrinology/Medicine Department, Hospital Sant Pau, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Unidad 747), IIB-Sant Pau, ISCIII and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Jaume Llauger
- Radiology Department, Hospital Sant Pau, Barcelona, Spain
| | - Adolfo Díez-Pérez
- URFOA, IMIM (Institut Hospital del Mar d’Investigacions Mèdiques), Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Susan M Webb
- Endocrinology/Medicine Department, Hospital Sant Pau, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Unidad 747), IIB-Sant Pau, ISCIII and Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
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Kikuiri T, Mishima H, Imura H, Suzuki S, Matsuzawa Y, Nakamura T, Fukumoto S, Yoshimura Y, Watanabe S, Kinoshita A, Yamada T, Shindoh M, Sugita Y, Maeda H, Yawaka Y, Mikoya T, Natsume N, Yoshiura KI. Patients with SATB2-associated syndrome exhibiting multiple odontomas. Am J Med Genet A 2018; 176:2614-2622. [PMID: 30575289 DOI: 10.1002/ajmg.a.40670] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/28/2018] [Accepted: 10/02/2018] [Indexed: 01/09/2023]
Abstract
Special AT-rich sequence-binding protein 2 (SATB2)-associated syndrome (SAS) is characterized by alterations of SATB2. Its clinical features include intellectual disability and craniofacial abnormalities, such as cleft palate, dysmorphic features, and dental abnormalities. Here, we describe three previously undiagnosed, unrelated patients with SAS who exhibited dental abnormalities, including multiple odontomas. Although isolated odontomas are common, multiple odontomas are rare. Individuals in families 1 and 3 underwent whole-exome sequencing. Patient 2 and parents underwent targeted amplicon sequencing. On the basis of the hg19/GRCh37 reference and the RefSeq mRNA NM_001172517, respective heterozygous mutations were found and validated in Patients 1, 2, and 3: a splice-site mutation (chr2:g.200137396C > T, c.1741-1G > A), a nonsense mutation (chr2:g.200213750G > A, c.847C > T, p.R283*), and a frame-shift mutations (chr2:g.200188589_200188590del, c.1478_1479del, p.Q493Rfs*19). All mutations occurred de novo. The mutations in Patients 1 and 3 were novel; the mutation in Patient 2 has been described previously. Tooth mesenchymal cells derived from Patient 2 showed diminished SATB2 expression. Multiple odontomas were evident in the patients in this report; however, this has not been recognized previously as a SAS-associated phenotype. We propose that multiple odontomas be considered as an occasional manifestation of SAS.
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Affiliation(s)
- Takashi Kikuiri
- Department of Dentistry for Children and Disabled Persons, Hokkaido University Graduate School of Dental Medicine, Sapporo, Hokkaido, Japan
| | - Hiroyuki Mishima
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hideto Imura
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Satoshi Suzuki
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Yusuke Matsuzawa
- Department of Oral and Maxillofacial Surgery, Keiyukai Sapporo Hospital, Sapporo, Japan
| | - Takashi Nakamura
- Division of Molecular Pharmacology & Cell Biophysics, Department of Oral Biology, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Satoshi Fukumoto
- Division of Pediatric Dentistry, Department of Oral Health and Development Sciences, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Yoshitaka Yoshimura
- Department of Molecular Cell Pharmacology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan
| | - Satoshi Watanabe
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Akira Kinoshita
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Takahiro Yamada
- Clinical Genetics Unit, Kyoto University Hospital, Kyoto, Japan
| | - Masanobu Shindoh
- Department of Oral Pathology and Biology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.,Tenshi College School of Nursing and Nutrition, Sapporo, Japan
| | - Yoshihiko Sugita
- Department of Oral Pathology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Hatsuhiko Maeda
- Department of Oral Pathology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Yasutaka Yawaka
- Department of Dentistry for Children and Disabled Persons, Hokkaido University Graduate School of Dental Medicine, Sapporo, Hokkaido, Japan
| | - Tadashi Mikoya
- Center for Advanced Oral Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Nagato Natsume
- Division of Research and Treatment for Oral and Maxillofacial Congenital Anomalies, School of Dentistry, Aichi Gakuin University, Nagoya, Japan
| | - Koh-Ichiro Yoshiura
- Department of Human Genetics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Xu ZY, Zhou C, Zhang KF, Zheng YP. Identification of key genes in Ankylosing spondylitis. Immunol Lett 2018; 204:60-66. [PMID: 30321561 DOI: 10.1016/j.imlet.2018.03.016] [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: 01/14/2018] [Revised: 03/15/2018] [Accepted: 03/18/2018] [Indexed: 11/24/2022]
Abstract
Ankylosing spondylitis (AS) is a common form of seronegative spondyloarthritis. We had identified differentially expressed genes (DEGs) in AS based on our previous RNA-sequencing results. Our study aimed to identify key genes in AS by integrated microarray analysis. In this present study, we identified 1328 DEGs between AS and normal control by using integrated analysis of two datasets derived from the Gene Expression Omnibus (GEO) database. Functional annotation of DEGs were performed. Pathways in cancer, Pancreatic cancer and Natural killer cell mediated cytotoxicity were significantly enriched pathways for DEGs. Based on the shared DEGs of AS in both integrated analysis and our previous RNA-sequencing results, we constructed the protein and protein interaction (PPI) network. BIRC2, MAPILC3A and MAGED1 were hub proteins. Validation of gene expression by qRT-PCR were performed and the results were consistent with our integrated analysis generally. Our finding provided new clues for understanding the mechanism of AS.
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Affiliation(s)
- Zhong-Yang Xu
- Department of Orthopaedics, Jining NO.1 People's Hospital, China; Department of Orthopaedics, Sandong University Qilu Hospital, China
| | - Chao Zhou
- Department of Orthopaedics, Sandong University Qilu Hospital, China
| | - Ke-Feng Zhang
- Department of Orthopaedics, Jining NO.1 People's Hospital, China
| | - Yan-Ping Zheng
- Department of Orthopaedics, Sandong University Qilu Hospital, China.
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Merametdjian L, Prud'Homme T, Le Caignec C, Isidor B, Lopez-Cazaux S. Oro-dental phenotype in patients with RUNX2 duplication. Eur J Med Genet 2018; 62:85-89. [PMID: 29852250 DOI: 10.1016/j.ejmg.2018.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/17/2018] [Accepted: 05/21/2018] [Indexed: 12/11/2022]
Abstract
Runt-related transcription factor 2 (RUNX2) is well-known for its role in bone development and tooth morphogenesis. Most RUNX2 mutations described in the literature result in loss-of-function mutations of RUNX2 responsible for cleidocranial dysplasia, an autosomal dominant disorder. We describe here the oro-dental phenotype of four patients of a unique family with a 285 kb duplication including the entire sequence of RUNX2, likely responsible for three functional copies of the gene, leading to an increased RUNX2 dosage. Several dental anomalies of number (hypodontia or oligodontia), morphology (microdontia, radiculomegaly, taurodontism or dens invaginatus) and tooth position (rotation) were found in these patients.
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Affiliation(s)
- Laure Merametdjian
- Département d'Odontologie Conservatrice et Endodontie, UFR Odontologie, Université de Nantes, France; Service d'Odontologie Conservatrice et Pédiatrique, Centre de compétences Malformations orales et dentaires rares, CHU de Nantes, France; INSERM, U1229, RMeS, Nantes, France
| | - Tony Prud'Homme
- Service d'Odontologie Conservatrice et Pédiatrique, Centre de compétences Malformations orales et dentaires rares, CHU de Nantes, France; Département D'Odontologie Pédiatrique, UFR Odontologie, Université de Nantes, France; Unité d'Investigation Clinique Odontologie (UIC), France
| | - Cédric Le Caignec
- CHU Nantes, Service de Génétique Médicale, Centre de compétences Malformations orales et dentaires rares, CHU de Nantes, France; INSERM, UMR 1238, Bone Sarcoma and Remodeling of Calcified Tissue, Nantes, France
| | - Bertrand Isidor
- CHU Nantes, Service de Génétique Médicale, Centre de compétences Malformations orales et dentaires rares, CHU de Nantes, France; INSERM, UMR 1238, Bone Sarcoma and Remodeling of Calcified Tissue, Nantes, France
| | - Serena Lopez-Cazaux
- Service d'Odontologie Conservatrice et Pédiatrique, Centre de compétences Malformations orales et dentaires rares, CHU de Nantes, France; Département D'Odontologie Pédiatrique, UFR Odontologie, Université de Nantes, France; Unité d'Investigation Clinique Odontologie (UIC), France.
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37
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Greene SL, Mamaeva O, Crossman DK, Lu C, MacDougall M. Gene-Expression Analysis Identifies IGFBP2 Dysregulation in Dental Pulp Cells From Human Cleidocranial Dysplasia. Front Genet 2018; 9:178. [PMID: 29875795 PMCID: PMC5974155 DOI: 10.3389/fgene.2018.00178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 04/30/2018] [Indexed: 12/04/2022] Open
Abstract
Cleidocranial dysplasia (CCD) is an autosomal dominant disorder affecting osteoblast differentiation, chondrocyte maturation, skeletal morphogenesis, and tooth formation. Dental phenotype in CCD include over-retained primary teeth, failed eruption of permanent teeth, and supernumerary teeth. The underlying mechanism is unclear. We previously reported one CCD patient with allelic RUNX2 deletion (CCD-011). In the current study, we determined the transcriptomic profiles of dental pulp cells from this patient compared to one sex-and-age matched non-affected individual. Next Generation RNA sequencing revealed that 60 genes were significantly dysregulated (63% upregulated and 27% downregulated). Among them, IGFBP2 (insulin-like growth factor binding protein-2) was found to be upregulated more than twofold in comparison to control cells. Stable overexpression of RUNX2 in CCD-011 pulp cells resulted in the reduction of IGFBP2. Moreover, ALPL expression was up-regulated in CCD-011 pulp cells after introduction of normal RUNX2. Promoter analysis revealed that there are four proximal putative RUNX2 binding sites in -1.5 kb IGFBP2 promoter region. Relative luciferase assay confirmed that IGFBP2 is a direct target of RUNX2. Immunohistochemistry demonstrated that IGFBP2 was expressed in odontoblasts but not ameloblasts. This report demonstrated the importance of RUNX2 in the regulation of gene profile related to dental pulp cells and provided novel insight of RUNX2 into the negative regulation of IGFBP2.
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Affiliation(s)
- Stephen L. Greene
- Department of Pediatric Dentistry, School of Dentistry, The University of Alabama at Birmingham, Birmingham, AL, United States
- Institute of Oral Health Research, School of Dentistry, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Olga Mamaeva
- Institute of Oral Health Research, School of Dentistry, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - David K. Crossman
- Department of Genetics, School of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Changming Lu
- Institute of Oral Health Research, School of Dentistry, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Mary MacDougall
- Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
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Ozaki T, Yu M, Yin D, Sun D, Zhu Y, Bu Y, Sang M. Impact of RUNX2 on drug-resistant human pancreatic cancer cells with p53 mutations. BMC Cancer 2018; 18:309. [PMID: 29558908 PMCID: PMC5861661 DOI: 10.1186/s12885-018-4217-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 03/12/2018] [Indexed: 12/20/2022] Open
Abstract
Background Despite the remarkable advances in the early diagnosis and treatment, overall 5-year survival rate of patients with pancreatic cancer is less than 10%. Gemcitabine (GEM), a cytidine nucleoside analogue and ribonucleotide reductase inhibitor, is a primary option for patients with advanced pancreatic cancer; however, its clinical efficacy is extremely limited. This unfavorable clinical outcome of pancreatic cancer patients is at least in part attributable to their poor response to anti-cancer drugs such as GEM. Thus, it is urgent to understand the precise molecular basis behind the drug-resistant property of pancreatic cancer and also to develop a novel strategy to overcome this deadly disease. Review Accumulating evidence strongly suggests that p53 mutations contribute to the acquisition and/or maintenance of drug-resistant property of pancreatic cancer. Indeed, certain p53 mutants render pancreatic cancer cells much more resistant to GEM, implying that p53 mutation is one of the critical determinants of GEM sensitivity. Intriguingly, runt-related transcription factor 2 (RUNX2) is expressed at higher level in numerous human cancers such as pancreatic cancer and osteosarcoma, indicating that, in addition to its pro-osteogenic role, RUNX2 has a pro-oncogenic potential. Moreover, a growing body of evidence implies that a variety of miRNAs suppress malignant phenotypes of pancreatic cancer cells including drug resistance through the down-regulation of RUNX2. Recently, we have found for the first time that forced depletion of RUNX2 significantly increases GEM sensitivity of p53-null as well as p53-mutated pancreatic cancer cells through the stimulation of p53 family TAp63/TAp73-dependent cell death pathway. Conclusions Together, it is likely that RUNX2 is one of the promising molecular targets for the treatment of the patients with pancreatic cancer regardless of their p53 status. In this review article, we will discuss how to overcome the serious drug-resistant phenotype of pancreatic cancer.
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Affiliation(s)
- Toshinori Ozaki
- Laboratory of DNA Damage Signaling, Chiba Cancer Center Research Institute, Chiba, 260-8717, Japan.
| | - Meng Yu
- Department of Laboratory Animal of China Medical University, Shenyang, 110001, People's Republic of China
| | - Danjing Yin
- Research Center, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China
| | - Dan Sun
- Department of Urology, First Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Yuyan Zhu
- Department of Urology, First Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Youquan Bu
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Meixiang Sang
- Research Center, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, 050017, People's Republic of China
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Valenti MT, Mottes M, Cheri S, Deiana M, Micheletti V, Cosaro E, Davì MV, Francia G, Dalle Carbonare L. Runx2 overexpression compromises bone quality in acromegalic patients. Endocr Relat Cancer 2018; 25:269-277. [PMID: 29295822 DOI: 10.1530/erc-17-0523] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 01/02/2018] [Indexed: 12/12/2022]
Abstract
Acromegalic patients, characterized by excessive secretion of GH and IGF-1, show a high fracture risk but bone mineral density is a poor predictor for bone fractures in these patients. The effects of an excess of GH/IGF1 on skeleton as well as on osteogenic progenitors, i.e. mesenchymal stem cells, have not been investigated in these patients. We aimed to elucidate the skeletal conditions of acromegalic patients by means of bone microarchitecture analysis and evaluation of MSCs osteogenic commitment. In particular, we performed histomorphometric analyses, and we quantified the expression levels of the osteogenic transcription factor RUNX2 in circulating MSCs. Our results showed an abnormal microarchitecture and demonstrated that bone impairment in acromegalic patients is associated with the upregulation of RUNX2 expression. Furthermore, osteoblastic activity was significantly reduced in patients under pharmacological treatment, compared to untreated patients. In conclusion, this study demonstrates the key role of RUNX2 gene overexpression in causing bone impairment in acromegalic patients. It also suggests a therapeutic approach for the improvement of bone quality, focused on the osteoblastic lineage rather than the inhibition of osteoclastic activity.
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Affiliation(s)
- Maria Teresa Valenti
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Monica Mottes
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Samuele Cheri
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Michela Deiana
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
- Department of NeurosciencesBiomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Valentina Micheletti
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Elisa Cosaro
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Maria Vittoria Davì
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Giuseppe Francia
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
| | - Luca Dalle Carbonare
- Department of MedicineInternal Medicine, Section D, University of Verona, Verona, Italy
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Lv H, Zhang M, Shang Z, Li J, Zhang S, Lian D, Zhang R. Genome-wide haplotype association study identify the FGFR2 gene as a risk gene for acute myeloid leukemia. Oncotarget 2018; 8:7891-7899. [PMID: 27903959 PMCID: PMC5352368 DOI: 10.18632/oncotarget.13631] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/08/2016] [Indexed: 11/25/2022] Open
Abstract
Acute myeloid leukemia (AML) is a cancer of the myeloid line of blood cells, and generally considered to be caused by environment and genetic factors. In this study, we combined a genome-wide haplotype association study (GWHAS) and gene prioritization strategy to mine AML-related genetic affect factors and understand its pathogenesis. A total of 175 AML patients were downloaded from the public GEO database (GSE32462) and 218 matched Caucasian controls were from the HapMap Project. We first identified the linkage disequilibrium (LD) blocks and performed a GWHAS to scan AML-related haplotypes. Then we mapped these haplotypes to the corresponding genes as candidate. And finally, we prioritized all the AML candidate genes based on the similarity with 38 known AML susceptibility genes. The results showed that 1754 haplotypes were significant associated with AML (P<1E-5) and mapped to 591 candidate genes. After prioritizing all 591 AML candidate genes, we obtained four genes ranking at the front as AML risk genes: RUNX1, JAK1, PDGFRA, and FGFR2. Among them, RUNX1, JAK1 and PDGFRA had been confirmed as AML risk genes. In particular, we found that the gene FGFR2 was a novel AML susceptibility gene with a haplotype TT (rs7090018 and rs2912759) showed significant association with AML (P-value = 7.07E-06). In a word, our findings might provide a new perspective to understand the pathogenesis of AML.
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Affiliation(s)
- Hongchao Lv
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Mingming Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Zhenwei Shang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Jin Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Shanshan Zhang
- Hospital of Harbin Turbine Company Limited, Harbin Electric Corporation, Harbin, China
| | - Duan Lian
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Ruijie Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
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Balagangadharan K, Viji Chandran S, Arumugam B, Saravanan S, Devanand Venkatasubbu G, Selvamurugan N. Chitosan/nano-hydroxyapatite/nano-zirconium dioxide scaffolds with miR-590-5p for bone regeneration. Int J Biol Macromol 2018; 111:953-958. [PMID: 29415417 DOI: 10.1016/j.ijbiomac.2018.01.122] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 02/06/2023]
Abstract
Bone tissue engineering (BTE) relies on biocomposite scaffolds and bioactive molecules for bone regeneration. The present study was aimed to synthesize and characterize biocomposite scaffolds containing chitosan (CS), nano-hydroxyapatite (nHAp) and nano‑zirconium dioxide (nZrO2) along with microRNA (miRNA) for BTE applications. miRNAs act as post-transcriptional regulator of gene expression. The fabricated biocomposite scaffolds were characterized using SEM, FT-IR and XRD analyses. The effect of a bioactive molecule (miR-590-5p) with scaffolds was tested for osteoblast differentiation at the cellular and molecular levels using mouse mesenchymal stem cells (C3H10T1/2). The results showed that CS/nHAp/nZrO2 scaffolds promoted osteoblast differentiation, and this effect was further increased in the presence of miR-590-5p in C3H10T1/2 cells. Thus, we suggested that CS/nHAp/nZrO2 scaffolds with miR-590-5p would have potential towards the treatment of bone defects.
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Affiliation(s)
- K Balagangadharan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - S Viji Chandran
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - B Arumugam
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - S Saravanan
- Centre for Nanotechnology and Advanced Biomaterials, Department of Bioengineering, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - G Devanand Venkatasubbu
- Department of Nanotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India.
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Feng XW, Huo LJ, Sun JJ, Xu JD, Niu GJ, Wang JX, Shi XZ. Myeloid leukemia factor functions in anti-WSSV immune reaction of kuruma shrimp, Marsupenaeus japonicus. FISH & SHELLFISH IMMUNOLOGY 2017; 70:416-425. [PMID: 28916357 DOI: 10.1016/j.fsi.2017.09.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/05/2017] [Accepted: 09/09/2017] [Indexed: 06/07/2023]
Abstract
Myeloid leukemia factor (MLF) plays an important role in development, cell cycle, myeloid differentiation, and regulates the RUNX transcription factors. However, the function of MLF in immunity is still unclear. In this study, an MLF was identified and characterized in kuruma shrimp Marsupenaeus japonicus, and named as MjMLF. The full-length cDNA of MjMLF contained 1111 nucleotides, which had an opening reading frame of 816 bp encoding a protein of 272 amino acids with an MLF1-interacting protein domain. MjMLF could be ubiquitously detected in different tissues of shrimp at the transcriptional level. The expression pattern analysis showed that MjMLF could be upregulated in shrimp hemocytes and hepatopancreas after white spot syndrome virus challenge. The RNA interference and protein injection assay showed that MjMLF could inhibit WSSV replication in vivo. Flow cytometry assay showed that MjMLF could induce hemocytes apoptosis which functioned in the shrimp antiviral reaction. All the results suggested that MjMLF played an important role in the antiviral immune reaction of kuruma shrimp. The research indicated that MjMLF might function as a novel regulator to inhibit WSSV replication in shrimp.
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Affiliation(s)
- Xiao-Wu Feng
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Li-Jie Huo
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Jie-Jie Sun
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Ji-Dong Xu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Guo-Juan Niu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Jin-Xing Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China
| | - Xiu-Zhen Shi
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Jinan, Shandong, 250100, China.
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MacFarlane EG, Haupt J, Dietz HC, Shore EM. TGF-β Family Signaling in Connective Tissue and Skeletal Diseases. Cold Spring Harb Perspect Biol 2017; 9:cshperspect.a022269. [PMID: 28246187 DOI: 10.1101/cshperspect.a022269] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The transforming growth factor β (TGF-β) family of signaling molecules, which includes TGF-βs, activins, inhibins, and numerous bone morphogenetic proteins (BMPs) and growth and differentiation factors (GDFs), has important functions in all cells and tissues, including soft connective tissues and the skeleton. Specific TGF-β family members play different roles in these tissues, and their activities are often balanced with those of other TGF-β family members and by interactions with other signaling pathways. Perturbations in TGF-β family pathways are associated with numerous human diseases with prominent involvement of the skeletal and cardiovascular systems. This review focuses on the role of this family of signaling molecules in the pathologies of connective tissues that manifest in rare genetic syndromes (e.g., syndromic presentations of thoracic aortic aneurysm), as well as in more common disorders (e.g., osteoarthritis and osteoporosis). Many of these diseases are caused by or result in pathological alterations of the complex relationship between the TGF-β family of signaling mediators and the extracellular matrix in connective tissues.
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Affiliation(s)
- Elena Gallo MacFarlane
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Julia Haupt
- Department of Orthopedic Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104.,Center for Research in FOP and Related Disorders, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Harry C Dietz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205.,Howard Hughes Medical Institute, Bethesda, Maryland 21205
| | - Eileen M Shore
- Department of Orthopedic Surgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104.,Center for Research in FOP and Related Disorders, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104.,Department of Genetics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104
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44
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Bonardi JP, Pereira RDS, Boos Lima FBDJ, Faverani LP, Griza GL, Okamoto R, Hochuli-Vieira E. Prospective and Randomized Evaluation of ChronOS and Bio-Oss in Human Maxillary Sinuses: Histomorphometric and Immunohistochemical Assignment for Runx 2, Vascular Endothelial Growth Factor, and Osteocalcin. J Oral Maxillofac Surg 2017; 76:325-335. [PMID: 29100829 DOI: 10.1016/j.joms.2017.09.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/15/2017] [Accepted: 09/25/2017] [Indexed: 11/17/2022]
Abstract
PURPOSE The aim of this study was to compare ChronOS (β-tricalcium phosphate), Bio-Oss, and their addition to an autogenous bone graft in a 1:1 ratio in human maxillary sinus bone augmentation. MATERIALS AND METHODS Thirty maxillary sinuses were divided in 5 groups: group 1 included 6 maxillary sinuses grafted with autogenous bone graft alone; group 2 included 6 maxillary sinuses grafted with ChronOS; group 3 included 6 maxillary sinuses grafted with ChronOS and autogenous bone graft in a 1:1 ratio; group 4 included 6 maxillary sinuses grafted with Bio-Oss; and group 5 included 6 maxillary sinuses grafted with Bio-Oss and autogenous bone graft in a 1:1 ratio. The number of samples for each group was determined by the statistical power test. RESULTS The median areas of new bone formation in groups 1, 2, 3, 4, and 5 were 121,917.0, 83,787.0, 99,295.0, 65,717.0, and 56,230.0 μm2, respectively. Statistically significant differences were found between groups 3 and 5, groups 1 and 4, and groups 1 and 5 (P < .05). The median areas of remaining biomaterial were 2,900.5, 5,291.0, 2,662.0, 56,258.5, and 64,753.5 μm2 in groups 1, 2, 3, 4 and 5, respectively. Statistically significant differences occurred between groups 1 and 5, groups 3 and 5, and groups 2 and 5 (P < .05). Areas of connective tissue were 67,829.0 ± 22,984.6 μm2 in group 1, 97,445.9 ± 18,983.3 μm2 in group 2, 88,256.0 ± 21,820.5 μm2 in group 3, 65,501.8 ± 6,297.6 in group 4, and 70,203.2 ± 13,421.3 μm2 in group 5. CONCLUSIONS ChronOS combined with autogenous bone graft presented a behavior similar to that of autogenous bone graft alone. However, the groups treated with Bio-Oss showed immuno-labeling results indicating maturation of grafted bone.
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Affiliation(s)
- João Paulo Bonardi
- PhD Student, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil
| | - Rodrigo Dos Santos Pereira
- Oral and Maxillofacial Surgeon, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil.
| | - Fernanda Brasil Daura Jorge Boos Lima
- Oral and Maxillofacial Surgeon, Universidade Federal de Minas Gerais, Department of Clinics, Pathology and Surgery, Pampulha, Belo Horizonte - MG, Brazil
| | - Leonardo Perez Faverani
- Oral and Maxillofacial Surgery Professor, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil
| | - Geraldo Luiz Griza
- Oral and Maxillofacial Surgeon, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil
| | - Roberta Okamoto
- Anatomy Professor, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil
| | - Eduardo Hochuli-Vieira
- Oral and Maxillofacial Surgery Professor, Surgery and Integrated Clinic Department, Universidade Estadual Paulista "Júlio de Mesquita Filho", São Paulo, SP, Brazil
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Abstract
PURPOSE OF REVIEW Bone remodeling is a diverse field of study with many direct clinical applications; past studies have implicated epigenetic alterations as key factors of both normal bone tissue development and function and diseases of pathologic bone remodeling. The purpose of this article is to review the most important recent advances that link epigenetic changes to the bone remodeling field. RECENT FINDINGS Epigenetics describes three major phenomena: DNA modification via methylation, histone side chain modifications, and short non-coding RNA sequences which work in concert to regulate gene transcription in a heritable fashion. Recent findings include the role of DNA methylation changes of Wnt, RANK/RANKL, and other key signaling pathways, epigenetic regulation of osteoblast and osteoclast differentiation, and others. Although much work has been done, much is still unknown. Future epigenome-wide studies should focus on extending the tissue coverage, integrating multiple epigenetic analyses with transcriptome data, and working to uncover epigenetic changes linked with early events in aberrant bone remodeling.
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Affiliation(s)
- Ali Husain
- Division of Rheumatology, Immunology, and Allergy, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Matlock A Jeffries
- Division of Rheumatology, Immunology, and Allergy, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Oklahoma Medical Research Foundation, Arthritis and Clinical Immunology Program, 825 NE 13th St., Laboratory MC400, Oklahoma City, OK, USA.
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46
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Jung YJ, Bae HS, Ryoo HM, Baek SH. A novel RUNX2 mutation in exon 8, G462X, in a patient with Cleidocranial Dysplasia. J Cell Biochem 2017; 119:1152-1162. [PMID: 28703881 DOI: 10.1002/jcb.26283] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 07/11/2017] [Indexed: 12/19/2022]
Abstract
To identify a novel mutation of Runx2 gene in Cleidocranial Dysplasia (CCD) patients and to characterize the functional consequences of this mutation. The subjects consisted of 12 Korean CCD patients. After oral epithelial cells were collected using a mouthwash technique, genomic DNA was extracted. Screening for Runx2 mutation was performed using direct sequencing of polymerase chain reaction (PCR) products for exons 1-8. Restriction fragment length polymorphism (RFLP) analysis was performed to confirm the novel mutation. For functional studies, we performed luciferase assay for Runx2 transacting activity, cyclohexamide chase assay for Runx2 protein stability, real-time PCR for mRNA level of Runx2 downstream bone marker genes, and alkaline phosphatase (ALP) staining assay in mesenchymal stem cells for osteoblast differentiation. Of the 12 patients, seven showed Runx2 mutations reported previously and four showed no mutation. A novel mutation, G462X in exon 8, which was located in the C-terminus of proline/serine/threonine-rich (PST) domain, was found in one patient. In the luciferase assay, Runx2 transacting activity was decreased in Runx2-G462X transfected cells. In the cyclohexamide chase assay, Runx2-G462X mutation reduced the stability of Runx2 protein. Expression of the bone marker genes (osteocalcin, ALP, Type I collagen αI, matrix metalloproteinase-13, bone sialoprotein, and osteopontin) decreased in G462X-transfected cells. In the ALP staining assay, osteoblast differentiation was reduced in Runx2-G462X overexpressed cell. The G462X mutation might reduce the Runx2 transacting activity, lower the protein stability, downgrade the expression of bone marker genes, and eventually diminish osteoblast differentiation in CCD patients.
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Affiliation(s)
- Yu-Jin Jung
- Department of Orthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Han-Sol Bae
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, BK21 Program, Seoul National University, Seoul, Republic of Korea
| | - Hyun-Mo Ryoo
- Department of Molecular Genetics, School of Dentistry and Dental Research Institute, BK21 Program, Seoul National University, Seoul, Republic of Korea
| | - Seung-Hak Baek
- Department of Orthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Kim MS, Gernapudi R, Choi EY, Lapidus RG, Passaniti A. Characterization of CADD522, a small molecule that inhibits RUNX2-DNA binding and exhibits antitumor activity. Oncotarget 2017; 8:70916-70940. [PMID: 29050333 PMCID: PMC5642608 DOI: 10.18632/oncotarget.20200] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/12/2017] [Indexed: 12/29/2022] Open
Abstract
The RUNX2 transcription factor promotes breast cancer growth and metastasis through interactions with a variety of cofactors that activate or repress target genes. Using a direct drug discovery approach we identified CADD522 as a small molecule that inhibits the DNA binding of the runt box domain protein, RUNX2. The current study defines the effect of CADD522 on breast cancer growth and metastasis, and addresses the mechanisms by which it exerts its anti-tumor activity. CADD522 treatment resulted in significant growth inhibition, clonogenic survival, tumorsphere formation, and invasion of breast cancer cells. CADD522 negatively regulated transcription of RUNX2 target genes such as matrix metalloproteinase-13, vascular endothelial growth factor and glucose transporter-1, but upregulated RUNX2 expression by increasing RUNX2 stability. CADD522 reduced RUNX2-mediated increases in glucose uptake and decreased the level of CBF-β and RUNX2 phosphorylation at the S451 residue. These results suggest several potential mechanisms by which CADD522 exerts an inhibitory function on RUNX2-DNA binding; interference with RUNX2 for the DNA binding pocket, inhibition of glucose uptake leading to cell cycle arrest, down-regulation of CBF-β, and reduction of S451-RUNX2 phosphorylation. The administration of CADD522 into MMTV-PyMT mice resulted in significant delay in tumor incidence and reduction in tumor burden. A significant decrease of tumor volume was also observed in a CADD522-treated human triple-negative breast cancer-patient derived xenograft model. CADD522 impaired the lung retention and outgrowth of breast cancer cells in vivo with no apparent toxicity to the mice. Therefore, by inhibiting RUNX2-DNA binding, CADD522 may represent a potential antitumor drug.
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Affiliation(s)
- Myoung Sook Kim
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA.,The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.,The Veteran's Health Administration Research & Development Service, Baltimore, MD, USA
| | - Ramkishore Gernapudi
- Department of Biochemistry & Molecular Biology and Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.,The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Eun Yong Choi
- The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Rena G Lapidus
- The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Antonino Passaniti
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA.,Department of Biochemistry & Molecular Biology and Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.,The Marlene & Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.,The Veteran's Health Administration Research & Development Service, Baltimore, MD, USA
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48
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Toda H, Yamamoto M, Uyama H, Tabata Y. Effect of hydrogel elasticity and ephrinB2-immobilized manner on Runx2 expression of human mesenchymal stem cells. Acta Biomater 2017; 58:312-322. [PMID: 28300720 DOI: 10.1016/j.actbio.2017.03.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/20/2017] [Accepted: 03/10/2017] [Indexed: 12/22/2022]
Abstract
The objective of this study is to design the manner of ephrinB2 immobilized onto polyacrylamide (PAAm) hydrogels with varied elasticity and evaluate the effect of hydrogels elasticity and the immobilized manner of ephrinB2 on the Runx2 expression of human mesenchymal stem cells (hMSC). The PAAm hydrogels were prepared by the radical polymerization of acrylamide (AAm), and N,N'-methylenebisacrylamide (BIS). By changing the BIS concentration, the elasticity of PAAm hydrogels changed from 1 to 70kPa. For the bio-specific immobilization of ephrinB2, a chimeric protein of ephrinB2 and Fc domain was immobilized onto protein A-conjugated PAAm hydrogels by making use of the bio-specific interaction between the Fc domain and protein A. When hMSC were cultured on the ephrinB2-immobilized PAAm hydrogels with varied elasticity, the morphology of hMSC was of cuboidal shape on the PAAm hydrogels immobilized with ephrinB2 compared with non-conjugated ones, irrespective of the hydrogels elasticity. The bio-specific immobilization of ephrinB2 enhanced the level of Runx2 expression. The expression level was significantly high for the hydrogels of 3.6 and 5.9kPa elasticity with bio-specific immobilization of ephrinB2 compared with other hydrogels with the same elasticity. The hydrogels showed a significantly down-regulated RhoA activity. It is concluded that the Runx2 expression of hMSC is synergistically influenced by the hydrogels elasticity and their immobilized manner of ephrinB2 immobilized. STATEMENT OF SIGNIFICANCE Differentiation fate of mesenchymal stem cells (MSC) is modified by biochemical and biophysical factors, such as elasticity and signal proteins. However, there are few experiments about combinations of them. In this study, to evaluate the synergistic effect of them on cell properties of MSC, we established to design the manner of Eph signal ligand, ephrinB2, immobilized onto polyacrylamide hydrogels with varied elasticity. The gene expression level of an osteogenic maker, Runx2, was enhanced by the immobilized manner, and significantly enhanced for the hydrogels of around 4kPa elasticity with bio-specific immobilization of ephrinB2. This is the novel report describing to demonstrate that the Runx2 expression of MSC is synergistically influenced by the hydrogels elasticity and their manner of ephrinB2 immobilized.
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Tarkkonen K, Hieta R, Kytölä V, Nykter M, Kiviranta R. Comparative analysis of osteoblast gene expression profiles and Runx2 genomic occupancy of mouse and human osteoblasts in vitro. Gene 2017; 626:119-131. [PMID: 28502869 DOI: 10.1016/j.gene.2017.05.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 01/24/2023]
Abstract
Fast progress of the next generation sequencing (NGS) technology has allowed global transcriptional profiling and genome-wide mapping of transcription factor binding sites in various cellular contexts. However, limited number of replicates and high amount of data processing may weaken the significance of the findings. Comparative analyses of independent data sets acquired in the different laboratories would greatly increase the validity of the data. Runx2 is the key transcription factor regulating osteoblast differentiation and bone formation. We performed a comparative analysis of three published Runx2 data sets of chromatin immunoprecipitation followed by deep sequencing (ChIP-seq) analysis in osteoblasts from mouse and human origin. Moreover, we assessed the similarity of the corresponding transcription data of these studies available online. The ChIP-seq data analysis confirmed general features of Runx2 binding, including location at genic vs intergenic regions and abundant Runx2 binding on promoters of the highly expressed genes. We also found high frequency of Runx2 DNA binding without a consensus Runx2 motif at the binding site. Importantly, mouse and human Runx2 showed moderately similar binding patterns in terms of peak-associated closest genes and their associated genomic ontology (GO) pathways. Accordingly, the gene expression profiles were highly similar and osteoblastic phenotype was prominent in the differentiated stage in both species. In conclusion, ChIP-seq method shows good reproducibility in the context of mature osteoblasts, and mouse and human osteoblast models resemble each other closely in Runx2 binding and in gene expression profiles, supporting the use of these models as adequate tools in studying osteoblast differentiation.
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Affiliation(s)
- Kati Tarkkonen
- Institute of Biomedicine, University of Turku, Turku, Finland
| | | | | | - Matti Nykter
- GeneVia Technologies, Tampere, Finland; Computational Biology, Institute of Biosciences and Medical Technology (BioMediTech), University of Tampere, Tampere, Finland
| | - Riku Kiviranta
- Institute of Biomedicine, University of Turku, Turku, Finland; Department of Endocrinology, Division of Medicine, Turku University Hospital, Turku, Finland.
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Pereira R, Gorla L, Boos F, Okamoto R, Garcia Júnior I, Hochuli-Vieira E. Use of autogenous bone and beta-tricalcium phosphate in maxillary sinus lifting: histomorphometric study and immunohistochemical assessment of RUNX2 and VEGF. Int J Oral Maxillofac Surg 2017; 46:503-510. [DOI: 10.1016/j.ijom.2017.01.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 10/14/2016] [Accepted: 01/03/2017] [Indexed: 10/20/2022]
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