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Zhao Q, Wang K, Hou L, Guo L, Liu X. Based on network pharmacology and molecular docking to explore the potential mechanism of shikonin in periodontitis. BMC Oral Health 2024; 24:839. [PMID: 39048977 PMCID: PMC11270799 DOI: 10.1186/s12903-024-04618-7] [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: 04/21/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024] Open
Abstract
OBJECTIVES To investigate the potential mechanisms of shikonin in preventing and treating periodontitis using network pharmacology and molecular docking methods. MATERIALS AND METHODS The targets of shikonin were obtained in TCMSP and SEA databases, and targets of periodontitis were gathered from the OMIM, GeneCards and Drugbank Databases. The intersecting targets were entered into the DAVID database to obtain the relevant biological functions and pathways by GO and KEGG enrichment analysis. The obtained targets were analysed the protein-protein interaction (PPI) in STRING platform. In Cytoscape 3.8.0, the network analysis function with the MCODE plug-in were used to obtain the key targets, of shikonin and periodontitis. Molecular docking and molecular dynamics simulation (MD) were used to assess the affinity between the shikonin and the key targets. RESULTS Shikonin was screened for 22 targets and periodontitis was screened for 944 targets, the intersecting targets were considered as potential therapeutic targets. The targets played important roles in cellular response to hypoxia, response to xenobiotic stimulus and positive regulates of apoptotic process by GO enrichment analysis. 10 significant pathways were analyzed by KEGG, such as human cytomegalovirus infection and PI3K-Akt signaling pathway, etc. Cytoscape software screened the key genes including AKT1, CCL5, CXCR4, PPARG, PTEN, PTGS2 and TP53. Molecular docking and MD results showed that shikonin could bind stably to the targets. CONCLUSIONS The present study enriched the molecular mechanisms in periodontitis with shikonin, providing potential therapeutic targets for periodontitis.
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Affiliation(s)
- Qingliang Zhao
- Department of Stomatology, Harbin the First Hospital, Harbin, 150010, China
| | - Kun Wang
- Department of Central Sterile Supply, the First Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Lin Hou
- Department of Stomatology, Harbin the First Hospital, Harbin, 150010, China
| | - Lin Guo
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town,Jinghai District, Tianjin, 301617, China.
| | - Xiangyan Liu
- Department of Stomatology, Harbin the First Hospital, Harbin, 150010, China.
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Weng Z, Xu C, Chen X, Yan Q, Fu Z, Jiao J, Xu J, Liu Q, Wang D, Liang J, Li W, Gu A. Sp1-activated FGFR2 is involved in early-life exposure to nickel-induced craniosynostosis by regulating the ERK1/2 signaling pathway. ENVIRONMENT INTERNATIONAL 2024; 184:108477. [PMID: 38340406 DOI: 10.1016/j.envint.2024.108477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/13/2023] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Nickel, a common environmental hazard, is a risk factor for craniosynostosis. However, the underlying biological mechanism remains unclear. Here, we found that early-life nickel exposure induced craniosynostosis in mice. In vitro, nickel promoted the osteogenic differentiation of human mesenchymal stem cells (hMSCs), and its osteogenic ability in vivo was confirmed by an ectopic osteogenesis model. Further mRNA sequencing showed that ERK1/2 signaling and FGFR2 were aberrantly activated. FGFR2 was identified as a key regulator of ERK1/2 signaling. By promoter methylation prediction and methylation-specific PCR (MSP) assays, we found that nickel induced hypomethylation in the promoter of FGFR2, which increased its binding affinity to the transcription factor Sp1. During pregnancy and postnatal stages, AZD4547 rescued nickel-induced craniosynostosis by inhibiting FGFR2 and ERK1/2. Compared with normal individuals, nickel levels were increased in the serum of individuals with craniosynostosis. Further logistic and RCS analyses showed that nickel was an independent risk factor for craniosynostosis with a nonlinear correlation. Mediated analysis showed that FGFR2 mediated 30.13% of the association between nickel and craniosynostosis risk. Collectively, we demonstrate that early-life nickel exposure triggers the hypomethylation of FGFR2 and its binding to Sp1, thereby promoting the osteogenic differentiation of hMSCs by ERK1/2 signaling, leading to craniosynostosis.
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Affiliation(s)
- Zhenkun Weng
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China; The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, China
| | - Cheng Xu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Xiu Chen
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Qing Yan
- Department of Neurosurgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Zuqiang Fu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China; School of Public Health, Southeast University, 101 Longmian Avenue, Nanjing 211166, China
| | - Jian Jiao
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Jin Xu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China; Department of Maternal, Child, and Adolescent Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Qian Liu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Dongmei Wang
- The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, China
| | - Jingjia Liang
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Wenxiang Li
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Aihua Gu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing 211166, China.
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Identification of Neuropeptides as Potential Crosstalks Linking Down Syndrome and Periodontitis Revealed by Transcriptomic Analyses. DISEASE MARKERS 2021; 2021:7331821. [PMID: 34545294 PMCID: PMC8449741 DOI: 10.1155/2021/7331821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 08/16/2021] [Indexed: 11/24/2022]
Abstract
Background This bioinformatics study was aimed to investigate the relationship between periodontitis (PD) and Down Syndrome (DS) regarding potential crosstalk genes, related neuropeptides, and biological processes. Methods Data for PD (GSE23586, GSE10334 and GSE16134) and DS (GSE35665) were downloaded from NCBI Gene Expression Omnibus (GEO). Following normalization and merging of PD data, differential expression analysis was performed (p value < 0.05 and ∣log FC | ≥0.5). The common deregulated genes between PD and DS were considered as crosstalk genes. The significantly differentially expressed genes were used to construct the coexpression network and to further identify coexpression gene modules. To acquire the significant modules, the significant expression level of genes in the module was used to analyze the enrichment of genes in each module. Neuropeptides were assessed from NeuroPedia database. Neuropeptide genes and crosstalk genes were merged and mapped into PPI network, and the correlation coefficient (Spearman) was determined for the crosstalk genes. Results 138 crosstalk genes were predicted. According to the functional enrichment analysis, these genes significantly regulated different biological processes and pathways. In enrichment analysis, the significant module of DS was pink module, and turquoise module was significant in PD. Four common crosstalk genes were acquired, i.e., CD19, FCRL5, FCRLA, and HLA-DOB. In the complex network, INS and IGF2 interacted with CASP3 and TP53, which commonly regulated the MAPK signaling pathway. Moreover, the results showed that TP53 interacted with IGF2 and INS inducing the dysregulation of PI3K-Akt signaling pathway. UBL was positively correlated with crosstalk genes in both diseases. LEP was revealed to be both a neuropeptide and crosstalk gene and was positively correlated with other crosstalk genes. Conclusion Different crosstalk genes, related neuropeptides, and biological pathways and processes were revealed between PD and DS, which can serve as a theoretical basis for future research.
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Yu T, You X, Zhou H, He W, Li Z, Li B, Xia J, Zhu H, Zhao Y, Yu G, Xiong Y, Yang Y. MiR-16-5p regulates postmenopausal osteoporosis by directly targeting VEGFA. Aging (Albany NY) 2020; 12:9500-9514. [PMID: 32427128 PMCID: PMC7288956 DOI: 10.18632/aging.103223] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 03/31/2020] [Indexed: 05/13/2023]
Abstract
In this study, we used bioinformatics tools, and experiments with patient tissues and human mesenchymal stem cells (hMSCs) to identify differentially regulated genes (DEGs) and microRNAs (miRNAs) that promote postmenopausal osteoporosis. By analyzing the GSE56815 dataset from the NCBI GEO database, we identified 638 DEGs, including 371 upregulated and 267 downregulated genes, in postmenopausal women with low bone density. Enrichment and protein-protein interaction network analyses showed that TP53, RPS27A, and VEGFA were the top three hub genes with the highest degree of betweenness and closeness centrality. TargetScanHuman and DIANA software analyses and dual luciferase reporter assays confirmed that miR-16a-5p directly targets the 3'UTR of VEGFA. Postmenopausal patients with osteoporosis showed higher miR-16-5p and lower VEGFA levels than those without osteoporosis (n=10 each). VEGFA levels were higher in miR-16-5p knockdown hMSCs and were reduced in miR-16-5p-overexpressing hMSCs. mRNA expression of osteogenic markers, ALP, OCN, and RUNX2, as well as calcium deposition based on Alizarin red staining, correlated inversely with miR-16-5p levels and correlated positively with VEGFA levels. These findings suggest that miR-16-5p suppresses osteogenesis by inhibiting VEGFA expression and is a promising target for postmenopausal osteoporosis therapy.
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Affiliation(s)
- Tao Yu
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Xiaomeng You
- Department of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Haichao Zhou
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Wenbao He
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Zihua Li
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Bing Li
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Jiang Xia
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Hui Zhu
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Youguang Zhao
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Guangrong Yu
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Yuan Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yunfeng Yang
- Department of Orthopedic Surgery, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
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Pieles O, Reck A, Reichert TE, Morsczeck C. p53 inhibits the osteogenic differentiation but does not induce senescence in human dental follicle cells. Differentiation 2020; 114:20-26. [PMID: 32473528 DOI: 10.1016/j.diff.2020.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 04/24/2020] [Accepted: 05/11/2020] [Indexed: 12/17/2022]
Abstract
Replicative senescence causes a reduced osteogenic differentiation potential of senescent dental follicle cells (DFCs). The transcription factor p53 is often involved in the induction of cellular senescence, but little is known about its role in DFCs. This study examined for the first time the role of p53 compared to its pro-proliferative antagonist E2F-1 in terms of osteogenic differentiation potential and induction of senescence. Protein expression of E2F-1 decreased during cell aging, while p53 was expressed constitutively. Gene silencing of E2F1 (E2F-1) inhibited the proliferation rate of DFCs and increased the induction of cellular senescence. The induction of cellular senescence is regulated independently of the gene expression of TP53 (p53), since its gene expression depends on the expression of E2F1. Moreover, gene silencing of TP53 induced E2F1 gene expression and increased cell proliferation, but did not affect the rate of induction of cellular senescence. TP53 knockdown further induced the alkaline phosphatase and mineralization in DFCs. However, the simultaneous silencing of TP53 and E2F1 did not inhibit the inductive effect of TP53 knockdown on osteogenic differentiation, indicating that this effect is independent of E2F-1. In summary, our results suggest that p53 inhibits osteogenic differentiation and cell proliferation in senescent DFCs, but is not significantly involved in senescence induction.
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Affiliation(s)
- Oliver Pieles
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Anja Reck
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Torsten E Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Christian Morsczeck
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
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Xia CP, Pan T, Zhang N, Guo JR, Yang BW, Zhang D, Li J, Xu K, Meng Z, He H. Sp1 promotes dental pulp stem cell osteoblastic differentiation through regulating noggin. Mol Cell Probes 2020; 50:101504. [PMID: 31904417 DOI: 10.1016/j.mcp.2019.101504] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/27/2019] [Accepted: 12/27/2019] [Indexed: 02/08/2023]
Abstract
Based on the high self-renewal ability and osteoblastic differentiation capacity, dental pulp stem cells (DPSCs) are suggested to be promising cell source for osteogenesis. Therefore, illustrating the mechanism of osteoblastic differentiation of DPSCs is required. This current study aims to illustrate the role and mechanism of Sp1 in regulating osteoblastic differentiation of DPSCs. In this study, we downregulated Sp1 in DPSCs and evaluated the osteoblastic differentiation by measuring Runx2 and OCN expression with Western blot analysis and by Alizarin red staining. Furthermore, we investigated the mechanism of Sp1 regulating noggin with Firefly luciferase reporter gene assay and ChIP assay, and correspondingly evaluated the function of noggin in Sp1-regulated osteoblastic differentiation of DPSCs. We found that knockdown of Sp1 inhibits the expression of ALP, Runx2, COL1A1 and OCN, and decreases ALP staining, Alizarin red staining. Sp1 binds to noggin promoter and inhibits noggin expression, thus correspondingly regulates DPSCs osteoblastic differentiation. In conclusion, our study revealed that Sp1 regulates DPSCs osteoblastic differentiation through noggin and that Sp1/noggin can provide new perspective for enhancing DPSCs osteogenesis.
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Affiliation(s)
- Chun-Peng Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Rd., Wuhan, 430079, China; Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China; Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Rd, Wuhan, 430079, China
| | - Tao Pan
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Nan Zhang
- The Institute for Tissue Engineering and Regenerative Medicine, Liaocheng People's Hospital, Liaocheng University, Liaocheng, 252000, China
| | - Jian-Ran Guo
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Bing-Wu Yang
- Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Di Zhang
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Jun Li
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Kai Xu
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China
| | - Zhen Meng
- Department of Stomatology, Liaocheng People's Hospital, Liaocheng University, 67 Dongchangxi Road, Liaocheng, 252000, China; Precision Biomedical Key Laboratory of Liaocheng, Liaocheng People's Hospital, 67 Dongchangxi Road, Liaocheng, 252000, China.
| | - Hong He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Rd., Wuhan, 430079, China; Department of Orthodontics, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Rd, Wuhan, 430079, China.
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Dental Follicle Cells: Roles in Development and Beyond. Stem Cells Int 2019; 2019:9159605. [PMID: 31636679 PMCID: PMC6766151 DOI: 10.1155/2019/9159605] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 08/16/2019] [Indexed: 02/05/2023] Open
Abstract
Dental follicle cells (DFCs) are a group of mesenchymal progenitor cells surrounding the tooth germ, responsible for cementum, periodontal ligament, and alveolar bone formation in tooth development. Cascades of signaling pathways and transcriptional factors in DFCs are involved in directing tooth eruption and tooth root morphogenesis. Substantial researches have been made to decipher multiple aspects of DFCs, including multilineage differentiation, senescence, and immunomodulatory ability. DFCs were proved to be multipotent progenitors with decent amplification, immunosuppressed and acquisition ability. They are able to differentiate into osteoblasts/cementoblasts, adipocytes, neuron-like cells, and so forth. The excellent properties of DFCs facilitated clinical application, as exemplified by bone tissue engineering, tooth root regeneration, and periodontium regeneration. Except for the oral and maxillofacial regeneration, DFCs were also expected to be applied in other tissues such as spinal cord defects (SCD), cardiomyocyte destruction. This article reviewed roles of DFCs in tooth development, their properties, and clinical application potentials, thus providing a novel guidance for tissue engineering.
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Zhuge W, Yan F, Zhu Z, Wang X. The Significance of Single-Cell Biomedicine in Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1068:187-195. [PMID: 29943306 DOI: 10.1007/978-981-13-0502-3_16] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Clinical application of stem cells (SCs) progresses significantly in the treatment of a large number of diseases, e.g. leukemia, respiratory diseases, kidney disease, cerebral palsy, autism, or autoimmune diseases. Of those, the population, biological phenotypes, and functions of individual SCs are mainly concerned, due to the lack of cell separation and purification processes. The single-cell technology, including microfluidic technology and single-cell genome amplification technology, is widely used to study SCs and gains some recognitions. The present review will address the importance of single-cell technologies in the recognition and heterogeneity of SCs and highlight the significance of current single-cell approaches in the understanding of SC phenotypes. We also discuss the values of single-cell studies to overcome the bottleneck in explore of biological mechanisms and reveal the therapeutic potentials of SCs in diseases, especially tumor-related diseases, as new diagnostic and therapeutic strategies.
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Affiliation(s)
- Weishan Zhuge
- Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical School, Shanghai, China
| | - Furong Yan
- Department of Respiratory Pulmonary and Critical Care Medicine, The Second Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - Zhitu Zhu
- The First Hospital of Jinzhou Medical University, JinZhou, Liaoning Province, China.
| | - Xiangdong Wang
- Zhongshan Hospital Institute of Clinical Science, Fudan University Shanghai Medical School, Shanghai, China.
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Kim SJ, Ka S, Ha JW, Kim J, Yoo D, Kim K, Lee HK, Lim D, Cho S, Hanotte O, Mwai OA, Dessie T, Kemp S, Oh SJ, Kim H. Cattle genome-wide analysis reveals genetic signatures in trypanotolerant N'Dama. BMC Genomics 2017; 18:371. [PMID: 28499406 PMCID: PMC5427609 DOI: 10.1186/s12864-017-3742-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 04/27/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Indigenous cattle in Africa have adapted to various local environments to acquire superior phenotypes that enhance their survival under harsh conditions. While many studies investigated the adaptation of overall African cattle, genetic characteristics of each breed have been poorly studied. RESULTS We performed the comparative genome-wide analysis to assess evidence for subspeciation within species at the genetic level in trypanotolerant N'Dama cattle. We analysed genetic variation patterns in N'Dama from the genomes of 101 cattle breeds including 48 samples of five indigenous African cattle breeds and 53 samples of various commercial breeds. Analysis of SNP variances between cattle breeds using wMI, XP-CLR, and XP-EHH detected genes containing N'Dama-specific genetic variants and their potential associations. Functional annotation analysis revealed that these genes are associated with ossification, neurological and immune system. Particularly, the genes involved in bone formation indicate that local adaptation of N'Dama may engage in skeletal growth as well as immune systems. CONCLUSIONS Our results imply that N'Dama might have acquired distinct genotypes associated with growth and regulation of regional diseases including trypanosomiasis. Moreover, this study offers significant insights into identifying genetic signatures for natural and artificial selection of diverse African cattle breeds.
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Affiliation(s)
- Soo-Jin Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.,C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea
| | - Sojeong Ka
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jung-Woo Ha
- Clova, NAVER Corp., Seongnam, 13561, Republic of Korea
| | - Jaemin Kim
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea
| | - DongAhn Yoo
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.,Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kwondo Kim
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea.,Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hak-Kyo Lee
- Department of Animal Biotechnology, Chonbuk National University, Jeonju, 66414, Republic of Korea
| | - Dajeong Lim
- Division of Animal Genomics and Bioinformatics, National Institute of Animal Science, RDA, Jeonju, 55365, Republic of Korea
| | - Seoae Cho
- C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea
| | - Olivier Hanotte
- University of Nottingham, School of Life Sciences, Nottingham, NG7 2RD, UK.,International Livestock Research Institute, Addis Ababa, Ethiopia
| | - Okeyo Ally Mwai
- International Livestock Research Institute, Box 30709-00100, Nairobi, Kenya
| | - Tadelle Dessie
- International Livestock Research Institute, Addis Ababa, Ethiopia
| | - Stephen Kemp
- International Livestock Research Institute, Box 30709-00100, Nairobi, Kenya.,The Centre for Tropical Livestock Genetics and Health, The Roslin Institute, University of Edinburgh, Easter Bush Campus, Edinburgh, Scotland, UK
| | - Sung Jong Oh
- National Institute of Animal Science, RDA, Wanju, 55365, Republic of Korea.
| | - Heebal Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea. .,C&K Genomics, Seoul National University Research Park, Seoul, 151-919, Republic of Korea. .,Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul, 08826, Republic of Korea.
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10
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Felthaus O, Gosau M, Klein S, Prantl L, Reichert TE, Schmalz G, Morsczeck C. Dexamethasone-related osteogenic differentiation of dental follicle cells depends on ZBTB16 but not Runx2. Cell Tissue Res 2014; 357:695-705. [PMID: 24816988 DOI: 10.1007/s00441-014-1891-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 04/08/2014] [Indexed: 01/23/2023]
Abstract
Dental follicle cells (DFCs) can be artificially differentiated into mineralizing cells. With a dexamethasone-based differentiation protocol, transcription factors ZBTB16 and NR4A3 are highly upregulated but Runx2 and other osteogenic marker genes are not. Previous studies have suggested the involvement of a Runx2-independent differentiation pathway. The objective of this study is to further elucidate this mechanism. Differentiation of DFCs was examined by alkaline phosphatase (ALP) staining and ALP activity measurement, by Alizarin Red S staining and by real-time reverse transcription plus the polymerase chain reaction. ZBTB16 was overexpressed by using a transient transfection method. Resulting genome-wide gene expression changes were assessed by microarray. ZBTB16 and Runx2 were inhibited by short interfering RNA transfection. Promoter binding of ZBTB16 was evaluated by chromatin immunoprecipitation. Downregulation of Runx2 had no effect on dexamethasone-induced differentiation but was effective on BMP2-induced differentiation. Downregulation of ZBTB16, however, impaired dexamethasone-induced differentiation. Genes that were upregulated by dexamethasone induction were also upregulated by ZBTB16 overexpression. Genes that were not upregulated during dexamethasone-induced differentiation were also not regulated by ZBTB16 overexpression. ZBTB16 bound directly to the promoter regions of osterix and NR4A3 but not that of Runx2. Overexpression of ZBTB16 led to changes in the gene expression profile, whereby upregulated genes were overrepresented in osteogenesis-associated biological processes. Our findings suggest that, in DFCs, a Runx2-independent differentiation mechanism exists that is regulated by ZBTB16.
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Affiliation(s)
- Oliver Felthaus
- Department of Cranio- and Maxillofacial Surgery, University Medical Center, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
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Felthaus O, Gosau M, Morsczeck C. ZBTB16 induces osteogenic differentiation marker genes in dental follicle cells independent from RUNX2. J Periodontol 2013; 85:e144-51. [PMID: 24359167 DOI: 10.1902/jop.2013.130445] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Dental follicle cells (DFCs) are neural crest cell-derived cells and the genuine precursor cells of cementoblast and alveolar osteoblasts. After osteogenic differentiation, expression levels of the transcription factor zinc factor and BTB domain containing 16 (ZBTB16) were significantly increased. ZBTB16 is associated with the process of osteogenic differentiation in bone marrow-derived mesenchymal stem cells and crucial for the expression of the osteogenic transcription factor runt-related transcription factor 2 (RUNX2). It is proposed that ZBTB16 plays also a crucial role for the differentiation of DFCs into osteoblasts. METHODS In this study, the differentiation of DFCs by alkaline phosphatase (ALP) activity measurement, alizarin red staining, and electron-dispersive x-ray spectrometry (EDX) analysis is investigated. The expression of ZBTB16 during osteogenic differentiation and the expression of osteogenic differentiation markers were assessed by real-time reverse transcription polymerase chain reaction. Glucocorticoid stimulation was inhibited using RU486 (11β-[p-(Dimethylamino)phenyl]-17β-hydroxy-17-(1-propynyl)estra-4,9-dien-3-one), and ZBTB16 was overexpressed via transient transfection of an expression vector. RESULTS After the initiation of osteogenic differentiation, ZBTB16 levels were increased highly in DFCs, whereas RUNX2 was expressed constitutively only. An EDX analysis verified the differentiation of DFCs into osteoblast-like cells because clusters of mineralization consisted of hydroxyapatite. ZBTB16 induced the expression of nuclear receptor subfamily 4, group A, member 3; osteocalcin; and stanniocalcin 1 (STC1) but not of RUNX2 and ALP in DFCs. STC1 was upregulated in DFCs downstream of ZBTB16 and after the osteogenic differentiation. The overexpression of STC1 in DFCs increased the expression of ZBTB16 and specific markers for biomineralization. CONCLUSIONS The present study shows that ZBTB16 induced the expression of osteogenic differentiation markers independently of RUNX2. Moreover, STC1 is a new candidate for the evaluation of late mechanisms of osteogenic differentiation downstream of ZBTB16.
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Affiliation(s)
- Oliver Felthaus
- Department of Cranio- and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
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Multilineage differentiation of human-derived dermal fibroblasts transfected with genes coated on PLGA nanoparticles plus growth factors. Biomaterials 2013; 34:582-97. [DOI: 10.1016/j.biomaterials.2012.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 10/01/2012] [Indexed: 01/04/2023]
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Transcriptional regulation of specific protein 1 (SP1) by hypoxia-inducible factor 1 alpha (HIF-1α) leads to PRNP expression and neuroprotection from toxic prion peptide. Biochem Biophys Res Commun 2012; 429:93-8. [PMID: 23131565 DOI: 10.1016/j.bbrc.2012.10.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 10/25/2012] [Indexed: 01/22/2023]
Abstract
Our previous study demonstrated that hypoxia-inducible factor-1 (HIF-1)-mediated neuroprotective effects are related to cellular prion protein (PrPc) gene (PRNP) regulation under hypoxic conditions. However, the mechanism of HIF-1α-mediated PRNP gene regulation in prion-mediated neurodegenerative disorders is not clear. Transcription factor specific protein 1 (SP1) is necessary for PRNP transcription initiation, and SP1 gene expression is regulated through HIF-1α activation under hypoxic conditions. Thus, we hypothesized that HIF-1α-mediated neuroprotection is related to the SP1 transcription pathway as a result of PRNP gene regulation. Inhibition of SP1 expression blocked the HIF-1α-mediated protective effect against prion-mediated neurotoxicity. Also, knockdown of HIF-1α induced downregulation of SP1 expression and sensitivity to prion-mediated neurotoxicity, whereas upregulation of SP1 transcriptional activity lead to protection against prion-mediated neuron cell death and PRNP gene expression even in HIF-1α depleted cells. This report is the first study demonstrating that HIF-1α-mediated SP1 expression regulates PrPc transcription, and upregulation of SP1 induced by HIF-1α plays a key role in protection from prion-mediated neurotoxicity. These studies suggest that transcription factor SP1 may be involved in the pathogenesis of prion diseases and also may be a potential therapeutic option for neurodegeneration caused by the pathological prion protein, PrPsc.
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