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Shukla V, Wang H, Varticovski L, Baek S, Wang R, Wu X, Echtenkamp F, Hernandez FV, Prothro KP, Gara SK, Zhang MR, Shiffka S, Raziuddin R, Neckers LM, Linehan WM, Chen H, Hager GL, Schrump DS. Genome-wide Analysis Identifies Nuclear Factor 1C as a Novel Transcription Factor and Potential Therapeutic Target in Small Cell Lung Cancer. J Thorac Oncol 2024:S1556-0864(24)00131-X. [PMID: 38583771 DOI: 10.1016/j.jtho.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/14/2024] [Accepted: 03/30/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Recent insights regarding mechanisms mediating stemness, heterogeneity, and metastatic potential of lung cancers have yet to be fully translated to effective regimens for the treatment of these malignancies. This study sought to identify novel targets for lung cancer therapy. METHODS Transcriptomes and DNA methylomes of 14 SCLC and 10 NSCLC lines were compared to normal human small airway epithelial cells (SAEC) and induced pluripotent stem cell (iPSC) clones derived from SAEC. SCLC lines, lung iPSC (Lu-iPSC), and SAEC were further evaluated by DNase I hypersensitivity (DHS-seq). Changes in chromatin accessibility and depths of transcription factor (TF) footprints were quantified using Bivariate analysis of Genomic Footprint. Standard techniques were used to examine growth and tumorigenencity as well as changes in transcriptomes and glucose metabolism of SCLC cells following Nuclear Factor 1C (NFIC) knockdown, and to examine NFIC expression in SCLC cells following exposure to BET inhibitors. RESULTS Significant commonality of transcriptomes and DNA methylomes was observed between Lu-iPSC and SCLC; however, this analysis was uninformative regarding pathways unique to lung cancer. Linking results of DNase-seq to RNA-seq enabled identification of networks not previously associated with SCLC. When combined with footprint depth, NFIC, a transcription factor not previously associated with SCLC, had the highest score of occupancy at open chromatin sites. Knockdown of NFIC impaired glucose metabolism, decreased stemness, and inhibited growth of SCLC cells in-vitro and in-vivo. ChIP-seq analysis identified numerous sites occupied by Bromodomain-containing protein 4 (BRD4) in the NFIC promoter region. Knock-down of BRD4 or treatment with Bromodomain and extra-terminal domain (BET) inhibitors (BETi) markedly reduced NFIC expression in SCLC cells and SCLC PDX models. Approximately 8% of genes downregulated by BETi treatment were repressed by NFIC knockdown in SCLC, while 34% of genes repressed following NFIC knockdown were also downregulated in SCLC cells following BETi treatment. CONCLUSIONS NFIC is a key TF and possible mediator of transcriptional regulation by BET family proteins in SCLC. Our findings highlight the potential of genome-wide chromatin accessibility analysis for elucidating mechanisms of pulmonary carcinogenesis and identifying novel targets for lung cancer therapy.
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Affiliation(s)
- Vivek Shukla
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | - Haitao Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | - Ruihong Wang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | - Xinwei Wu
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | | | | | - Mary R Zhang
- Thoracic Epigenetics Section, Thoracic Surgery Branch
| | | | | | | | | | - Haobin Chen
- Thoracic Epigenetics Section, Thoracic Surgery Branch
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Wu J, Wang M, Zhang Y, Liu G, Xing Y. Activation of CHPF by transcription factor NFIC promotes NLRP3 activation during the progression of colorectal cancer. Funct Integr Genomics 2024; 24:20. [PMID: 38267731 DOI: 10.1007/s10142-024-01299-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
Given the role of chondroitin polymerizing factor (CHPF) in several cancers, we investigated its role in the progression of colorectal cancer (CRC) and its association with NLRP3 inflammasome activation. High expression of CHPF in CRC predicted poor patient prognosis. Using colony formation, EdU staining, wound healing, Transwell invasion, and flow cytometry assays, we revealed that the downregulation of CHPF inhibited the malignant behavior of CRC cells. CHPF promoted NLRP3 inflammasome activation by inducing the MAPK signaling pathway, as evidenced by enhanced expression of Phos-ERK1/2, Phos-MEK1, Phos-MEK2, and NLRP3. Additionally, nuclear factor 1 C-type (NFIC) was revealed as a potential upstream transcription factor of CHPF in the modulation of CRC, and the anti-tumor effects elicited through its knockdown were compromised by CHPF in vitro and in vivo. In summary, we demonstrated that NFIC promoted NLRP3 activation to support CRC development via the CHPF-mediated MAPK signaling.
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Affiliation(s)
- Jiamei Wu
- Department of Basic Medical Science, Baicheng Medical College, Taobei District, No. 27, Mianfang Road, Jilin, 137000, Baicheng, People's Republic of China
| | - Miao Wang
- Department of Clinical Laboratory, Baicheng City Hospital, Jilin, 137000, Baicheng, People's Republic of China
| | - Yuechuan Zhang
- Basic Medical College, Jiamusi University, Heilongjiang, 154007, Jiamusi, People's Republic of China
| | - Guohong Liu
- Department of Basic Medical Science, Baicheng Medical College, Taobei District, No. 27, Mianfang Road, Jilin, 137000, Baicheng, People's Republic of China.
| | - Yutong Xing
- Department of Surgery, Xiamen Fifth Hospital, Xiangan District, No. 101, Minan Road, Fujian, 361100, Xiamen, People's Republic of China.
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Huang H, Zhu W, Huang Z, Zhao D, Cao L, Gao X. Adipose-derived stem cell exosome NFIC improves diabetic foot ulcers by regulating miR-204-3p/HIPK2. J Orthop Surg Res 2023; 18:687. [PMID: 37710299 PMCID: PMC10503042 DOI: 10.1186/s13018-023-04165-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/04/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Diabetic foot ulcers (DFU) are a serious complication of diabetes that lead to significant morbidity and mortality. Recent studies reported that exosomes secreted by human adipose tissue-derived mesenchymal stem cells (ADSCs) might alleviate DFU development. However, the molecular mechanism of ADSCs-derived exosomes in DFU is far from being addressed. METHODS Human umbilical vein endothelial cells (HUVECs) were induced by high-glucose (HG), which were treated with exosomes derived from nuclear factor I/C (NFIC)-modified ADSCs. MicroRNA-204-3p (miR-204-3p), homeodomain-interacting protein kinase 2 (HIPK2), and NFIC were determined using real-time quantitative polymerase chain reaction. Cell proliferation, apoptosis, migration, and angiogenesis were assessed using cell counting kit-8, 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, wound healing, and tube formation assays. Binding between miR-204-3p and NFIC or HIPK2 was predicted using bioinformatics tools and validated using a dual-luciferase reporter assay. HIPK2, NFIC, CD81, and CD63 protein levels were measured using western blot. Exosomes were identified by a transmission electron microscope and nanoparticle tracking analysis. RESULTS miR-204-3p and NFIC were reduced, and HIPK2 was enhanced in DFU patients and HG-treated HUVECs. miR-204-3p overexpression might abolish HG-mediated HUVEC proliferation, apoptosis, migration, and angiogenesis in vitro. Furthermore, HIPK2 acted as a target of miR-204-3p. Meanwhile, NFIC was an upstream transcription factor that might bind to the miR-204-3p promoter and improve its expression. NFIC-exosome from ADSCs might regulate HG-triggered HUVEC injury through miR-204-3p-dependent inhibition of HIPK2. CONCLUSION Exosomal NFIC silencing-loaded ADSC sheet modulates miR-204-3p/HIPK2 axis to suppress HG-induced HUVEC proliferation, migration, and angiogenesis, providing a stem cell-based treatment strategy for DFU.
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Affiliation(s)
- Huimin Huang
- Burn, Plastic and Wound Surgery Department, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Wufei Zhu
- Department of Endocrinology, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Zongwei Huang
- Burn, Plastic and Wound Surgery Department, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Dengze Zhao
- Burn, Plastic and Wound Surgery Department, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Lu Cao
- Burn, Plastic and Wound Surgery Department, Yichang Central People's Hospital, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Xian Gao
- Burn, Plastic and Wound Surgery Department, Huanggang Central Hospital of Yangtze University, No.126, Qian Avenue, Huangzhou District, Huanggang, 438000, Hubei, China.
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Jouret G, Egloff M, Landais E, Tassy O, Giuliano F, Karmous-Benailly H, Coutton C, Satre V, Devillard F, Dieterich K, Vieville G, Kuentz P, le Caignec C, Beneteau C, Isidor B, Nizon M, Callier P, Marquet V, Bieth E, Lévy J, Tabet AC, Lyonnet S, Baujat G, Rio M, Cartault F, Scheidecker S, Gouronc A, Schalk A, Jacquin C, Spodenkiewicz M, Angélini C, Pennamen P, Rooryck C, Doco-Fenzy M, Poirsier C. Clinical and genomic delineation of the new proximal 19p13.3 microduplication syndrome. Am J Med Genet A 2023; 191:52-63. [PMID: 36196855 DOI: 10.1002/ajmg.a.62983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/16/2022] [Accepted: 09/20/2022] [Indexed: 12/14/2022]
Abstract
A small but growing body of scientific literature is emerging about clinical findings in patients with 19p13.3 microdeletion or duplication. Recently, a proximal 19p13.3 microduplication syndrome was described, associated with growth delay, microcephaly, psychomotor delay and dysmorphic features. The aim of our study was to better characterize the syndrome associated with duplications in the proximal 19p13.3 region (prox 19p13.3 dup), and to propose a comprehensive analysis of the underlying genomic mechanism. We report the largest cohort of patients with prox 19p13.3 dup through a collaborative study. We collected 24 new patients with terminal or interstitial 19p13.3 duplication characterized by array-based Comparative Genomic Hybridization (aCGH). We performed mapping, phenotype-genotype correlations analysis, critical region delineation and explored three-dimensional chromatin interactions by analyzing Topologically Associating Domains (TADs). We define a new 377 kb critical region (CR 1) in chr19: 3,116,922-3,494,377, GRCh37, different from the previously described critical region (CR 2). The new 377 kb CR 1 includes a TAD boundary and two enhancers whose common target is PIAS4. We hypothesize that duplications of CR 1 are responsible for tridimensional structural abnormalities by TAD disruption and misregulation of genes essentials for the control of head circumference during development, by breaking down the interactions between enhancers and the corresponding targeted gene.
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Affiliation(s)
- Guillaume Jouret
- Department of Genetics, Reims University Hospital, Reims, France.,National Center of Genetics (NCG), Laboratoire national de santé (LNS), Dudelange, Luxembourg
| | - Matthieu Egloff
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - Emilie Landais
- Department of Genetics, Reims University Hospital, Reims, France
| | | | | | | | - Charles Coutton
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France.,ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France
| | - Véronique Satre
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Françoise Devillard
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Klaus Dieterich
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Gaëlle Vieville
- Service de Génétique et Procréation, Hôpital Couple-Enfant, CHU Grenoble Alpes, Université Grenoble-Alpes, La Tronche, France
| | - Paul Kuentz
- Génétique Biologique, PCBio, Besançon University Hospital, Besançon, France
| | - Cédric le Caignec
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Nantes University Hospital, Nantes, France
| | - Claire Beneteau
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Bertrand Isidor
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Mathilde Nizon
- Department of Genetics, Nantes University Hospital, Nantes, France
| | - Patrick Callier
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Dijon University Hospital, Dijon, France
| | - Valentine Marquet
- ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,Department of Genetics, Limoges University Hospital, Limoges, France
| | - Eric Bieth
- Department of Genetics, Toulouse University Hospital, Toulouse, France
| | - Jonathan Lévy
- Department of Genetics, Robert-Debré University Hospital, Paris, France
| | - Anne-Claude Tabet
- Department of Genetics, Robert-Debré University Hospital, Paris, France
| | - Stanislas Lyonnet
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France.,INSERM U-1163, Université de Paris, Paris, France
| | - Geneviève Baujat
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - Marlène Rio
- Department of Genetics, Necker-Enfants malades, AP-HP, Institut Imagine, Paris, France
| | - François Cartault
- Department of Genetics, La Réunion University Hospital, Saint Denis, France
| | | | | | | | - Clémence Jacquin
- Department of Genetics, Reims University Hospital, Reims, France
| | | | - Chloé Angélini
- CHU Bordeaux, Service de Génétique Médicale, Bordeaux, France
| | | | | | - Martine Doco-Fenzy
- Department of Genetics, Reims University Hospital, Reims, France.,ACLF (Association des Cytogénéticiens de Langue Française, French Society of Cytogenetics) Member, Grenoble cedex, France.,EA3801, SFR CAPSANTE, Reims, France
| | - Céline Poirsier
- Department of Genetics, Reims University Hospital, Reims, France
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Zhang H, Luo Z, Tang J, Tian J, Xiao Y, Sun C, Wang T. Transcription factor NFIC functions as a tumor suppressor in lung squamous cell carcinoma progression by modulating lncRNA CASC2. Cell Cycle 2022; 21:63-73. [PMID: 34985387 PMCID: PMC8837250 DOI: 10.1080/15384101.2021.1995130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Nuclear factor I (NFI) family is emerging found playing oncogenic or tumor-suppressive potential in cancers. However, the function and underlying mechanisms of NFIC, in the progression of Lung Squamous Cell Carcinoma (LUSC) remain unclear. Therefore, this study aims to probe into the function of NFIC in the development of LUSC. In the present study, we reported that NFIC was low expressed in human LUSC tissues and cell lines. NFIC inhibited LUSC cell proliferation and promoted cell apoptosis in vitro and in vivo. Moreover, NFIC also inhibited LUSC cell migration and invasion. Furthermore, we found that there were binding sites between lncRNA cancer susceptibility candidate 2 (CASC2) and NFIC, whose relationship was confirmed by the luciferase reporter assay. The expression of CASC2 and the expression of NFIC were positively correlated, and the function of CASC2 overexpression is similar to that of NFIC overexpression, which suggested that CASC2 may play a key role in LUSC development. Our study provided a new perspective for NFIC acting as an antioncogene in LUSC tumorigenesis, and NFIC and CASC2 may serve as novel potential targets for the treatment of LUSC.
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Affiliation(s)
- Hong Zhang
- Department of Thoracic Surgery, The Third Affitiated Hospital of Cqmu, Chongqing, China
| | - Zhilin Luo
- Department of Thoracic Surgery, The Third Affitiated Hospital of Cqmu, Chongqing, China
| | - JianMing Tang
- Department of Thoracic Surgery, The Third Affitiated Hospital of Cqmu, Chongqing, China
| | - Jie Tian
- Department of Thoracic Surgery, The Third Affitiated Hospital of Cqmu, Chongqing, China
| | - Yajie Xiao
- YuceBio Technology Co.Ltd., Shenzhen, China
| | - Chao Sun
- YuceBio Technology Co.Ltd., Shenzhen, China
| | - Tianhu Wang
- Department of Thoracic Surgery, The Third Affitiated Hospital of Cqmu, Chongqing, China,CONTACT Tianhu Wang Department of Thoracic Surgery, The Third Affiliated Hospital of Cqmu, No.1 Shuanghu Branch Road, Yubei District, Chongqing, China
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Abstract
BACKGROUND Gastric cancer is the most common malignant neoplasm of digestive system. Herein, we aim to detect the expression of nuclear factor I C (NFIC) in gastric cancer cells, and to explore the effect and mechanism of its expression on the development of gastric cancer. METHODS qPCR and Western blot assays were carried out to detect NFIC expression. Then, BGC-823 and SGC-7901 cell lines were selected to perform the following functional experiments. The function of NFIC on gastric cancer cells was analyzed by biological experiments. The associations between miR-9-5p and NFIC were searched on the bioinformatics website and identified by dual luciferase assay. The effects of miR-9-5p and NFIC on cells were verified by co-transfection experiments. The related genes expression was examined by Western blot. RESULTS A marked augmentation of NFIC was observed in gastric cancer cells. Knockdown of NFIC significantly inhibited the viability, colony formation, invasion, and migration of gastric cancer cells. Overexpression of miR-9-5p obviously suppressed the viability, colony formation, invasion, and migration of gastric cancer cells, and this phenomenon was aggravated by si-NFIC. Additionally, the expression levels of PCNA, vimentin, and Snail were obviously decreased after miR-9-5p mimic or/and si-NFIC treatment. CONCLUSIONS These results suggested that NFIC was highly expressed in gastric cancer cells, and knockdown of NFIC suppressed the growth and mobility of gastric cancer cells; miR-9-5p was identified as an upstream regulator of NFIC and suppressed the malignant behaviors of gastric cancer cells by targeting NFIC through affecting PCNA, vimentin, and Snail expression.
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Affiliation(s)
- Shihong Lv
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Lei Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Baijing Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
| | - Xiaohua Zhao
- Respiratory Department, The Second Affiliated Hospital of Mudanjiang Medical College, Mudanjiang, China
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Liang X, Zhang Z, Wang L, Zhang S, Ren L, Li S, Xu J, Lv S. Mechanism of methyltransferase like 3 in epithelial-mesenchymal transition process, invasion, and metastasis in esophageal cancer. Bioengineered 2021; 12:10023-10036. [PMID: 34666602 PMCID: PMC8810097 DOI: 10.1080/21655979.2021.1994721] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 12/31/2022] Open
Abstract
Methyltransferase like 3 (METTL3) has been identified to serve as a definitive inducer in cancer progression. This study sought to analyze the regulatory mechanism of METTL3 in epithelial-mesenchymal transition (EMT), invasion, and metastasis in esophageal cancer (ESCA). The METTL3 expressions in cancer tissues and cells were detected with extensive analysis of its correlation with clinical baseline data. The cells were transfected with sh-RNA-METTL3 and microRNA (miR)-20a-5p mimic, followed by evaluation of invasion, migration, and EMT. The N6-methyladenosine (m6A) level and enrichment of DiGeorge Critical Region 8 (DGCR8) and m6A were observed. The binding relationship between miR-20a-5p and Nuclear Factor I-C (NFIC) was verified, followed by Pearson correlation analysis. A subcutaneous tumor formation assay was conducted prior to observation of lung metastases. Our results revealed that METTL3 was highly expressed in ESCA patients and associated with severe lymph node involvement and distant metastasis. METTL3 downregulation radically inhibited the invasiveness, migration, and EMT. METTL3 elevated the miR-20a-5p expression via improving m6A modification. METTL3 inhibition downregulated the miR-20a-5p expression. Moreover, miR-20a-5p upregulation facilitated ESCA cell invasiveness and migration by targeting NFIC transcription. METTL3 inhibition suppressed tumor growth and lung metastasis in vivo. Overall, METTL3 promoted m6A modification and the binding of DGCR8 to miR-20a-5p to further elevate the miR-20a-5p expression and inhibit NFIC transcription, thus promoting EMT, invasion and migration.
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Affiliation(s)
- Xuyang Liang
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Zhimei Zhang
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Lu Wang
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Shuxian Zhang
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Ling Ren
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Shouying Li
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Jing Xu
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
| | - Shengxiang Lv
- Department of Gastroenterology, The Affiliated Lianyungang Hospital of Xuzhou Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, The First Affiliated Hospital of Kangda College, Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
- Department of Gastroenterology, Lianyungang Clinical College of Nanjing Medical University/The First People’s Hospital of Lianyungang, Lianyungang, China
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8
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Xu C, Xie X, Zhao L, Wu Y, Wang J. The critical role of nuclear factor I-C in tooth development. Oral Dis 2021; 28:2093-2099. [PMID: 34637578 DOI: 10.1111/odi.14046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/29/2021] [Accepted: 10/07/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES Nuclear factor I-C (NFIC) plays a critical role in regulating epithelial-mesenchymal crosstalk during tooth development. However, it remains largely unknown about how NFIC functions in dentin and enamel formation. In the present review, we aim to summarize the most recent discoveries in the field and gain a better understanding of the roles NFIC performs during tooth formation. SUBJECTS AND METHODS Nfic-/- mice exhibit human dentin dysplasia type I (DDI)-like phenotypes signified by enlarged pulp chambers, the presence of short-root anomaly, and failure of odontoblast differentiation. Although loss of NFIC has little effect on molar crown morphology, researchers have detected aberrant microstructures of enamel in the incisors. Recently, accumulating evidence has further uncovered the novel function of NFIC in the process of enamel and dentin formation. RESULTS During epithelial-mesenchyme crosstalk, the expression of NFIC is under the control of SHH-PTCH-SMO-GLI1 pathway. NFIC is closely involved in odontoblast lineage cells proliferation and differentiation, and the maintenance of NFIC protein level in cytoplasm is negatively regulated by TGF-β signaling pathway. In addition, NFIC has mild effect on ameloblast differentiation, enamel mineralization and cementum formation. CONCLUSIONS NFIC plays an important role in tooth development and is required for the formation of dentin, enamel as well as cementum.
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Affiliation(s)
- Chunmei Xu
- State Key Laboratory of Oral Diseases, Department of Periodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xudong Xie
- State Key Laboratory of Oral Diseases, Department of Periodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lei Zhao
- State Key Laboratory of Oral Diseases, Department of Periodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yafei Wu
- State Key Laboratory of Oral Diseases, Department of Periodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases, Department of Periodontics, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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9
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Wang J, Jiang Y, Xie X, Zhang S, Xu C, Zhou Y, Feng JQ. The identification of critical time windows of postnatal root elongation in response to Wnt/β-catenin signaling. Oral Dis 2020; 28:442-451. [PMID: 33314501 DOI: 10.1111/odi.13753] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 11/11/2020] [Accepted: 11/27/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVES In this study, we attempted to define the precise window of time for molar root elongation using a gain-of-function mutation of β-catenin model. MATERIALS AND METHODS Both the control and constitutively activated β-catenin (CA-β-cat) mice received a one-time tamoxifen administration (for activation of β-catenin at newborn, postnatal day 3, or 5, or 7, or 9) and were harvested at the same stage of P21. Multiple approaches were used to define the window of time of postnatal tooth root formation. RESULTS In the early activation groups (tamoxifen induction at newborn, or P3 or P5), there was a lack of molar root elongation in the CA-β-cat mice. When induced at P7, the root length was slightly reduced at P21. However, the root length was essentially the same as that in the control when β-cat activated at P9. This study indicates that root elongation occurs in a narrow time of window, which is highly sensitive to a change of β-catenin levels. Molecular studies showed a drastic decrease in the levels of nuclear factor I-C (NFIC) and osterix (OSX), plus sharp reductions of odontoblast differentiation markers, including Nestin, dentin sialoprotein (DSP), and dentin matrix protein 1 (DMP1) at both mRNA and protein levels. CONCLUSIONS Murine molar root elongation is precisely regulated by the Wnt/β-catenin signaling within a narrow window of time (newborn to day 5).
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Affiliation(s)
- Jun Wang
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yong Jiang
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA.,State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry & Endodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Xudong Xie
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Shiwen Zhang
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chunmei Xu
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yinghong Zhou
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
| | - Jian Q Feng
- Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX, USA
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10
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Wang H, Shi X, Wu S. miR-550a-3/ NFIC plays a driving role in esophageal squamous cell cancer cells proliferation and metastasis partly through EMT process. Mol Cell Biochem 2020; 472:115-123. [PMID: 32567032 DOI: 10.1007/s11010-020-03790-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 06/13/2020] [Indexed: 02/07/2023]
Abstract
In this study, the functional role of miR-550a-3 and its direct target nuclear factor IC (NFIC) in esophageal squamous cell cancer (ESCC) cells were explored. Differential expression of miR-550a-3 in ESCC tissues was acquired from TCGA database, and Kaplan-Meier method was used to determine the relationship between miR-550a-3 expression and survival time of ESCC patients. Expression level of miR-550a-3 in several ESCC cell lines was measured by qRT-PCR. Two cell lines including Eca109 and JAR were used to perform proliferation, cloning, invasion and migration experiments. Targeted relationship between miR-550a-3 and NFIC was speculated by predication software and confirmed by dual luciferase assay. Additionally, potential relationship between miR-550a-3 and NFIC was analyzed by Spearman rank correlation analysis and western blot. Rescue assays were performed to explore the function of miR-550a-3/NFIC in ESCC cells biological behaviors. Expression levels of key proteins involved in epithelial-to-mesenchymal transition (EMT) process were determined by western blot. By consulting TCGA database, we found that high expression of miR-550a-3 was positively connected with the poor prognosis of patients with ESCC. In addition, overexpression of miR-550a-3 promoted the proliferation, colony formation and metastasis of ESCC cells. Moreover, rescue assays revealed that overexpression of NFIC attenuated the promoting effects of miR-550a-3 on ESCC cells malignant behaviors. While the promoting effects of miR-550a-3 on EMT process were inhibited by NFIC. Our results illustrate the importance of miR-550a-3/NFIC in regulation of ESCC cells growth and metastasis, which could contribute to developing novel target for early diagnosis or neoteric therapeutic target for ESCC.
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Affiliation(s)
- Huiqing Wang
- Gastroenterology, The Second Hospital of Dalian Medical University, No.467, Zhongshan Road, Dalian, Liaoning, China
| | - Xiaoyu Shi
- Thoracic Surgery, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Shanbin Wu
- Gastroenterology, The Second Hospital of Dalian Medical University, No.467, Zhongshan Road, Dalian, Liaoning, China.
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11
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Liang X, Gao J, Wang Q, Hou S, Wu C. ECRG4 Represses Cell Proliferation and Invasiveness via NFIC/OGN/NF-κB Signaling Pathway in Bladder Cancer. Front Genet 2020; 11:846. [PMID: 32922434 PMCID: PMC7456849 DOI: 10.3389/fgene.2020.00846] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 07/13/2020] [Indexed: 12/24/2022] Open
Abstract
Bladder cancer (BCa) is a malignant tumor in the urinary system with high cancer-related mortality worldwide. However, the molecular mechanisms of many genes dysregulated in BCa are still unclear. Herein, we showed that esophageal cancer-related gene-4 (ECRG4), which is downregulated in BCa tissues and cell lines, has a positive correlation with osteoglycin (OGN). Further functional experimental studies suggested that both ECRG4 and OGN inhibit cell proliferation, migration, and invasion in BCa cells. Moreover, ECRG4 acts as a tumor repressor and promotes the expression of OGN via the upregulation of nuclear factor 1 C-type (NFIC), which can bind to the promoter region of OGN and regulate its transcription. Bioinformatics analysis revealed that NFIC is downregulated in BCa tissues and has a positive correlation with ECRG4 or OGN. Esophageal cancer-related gene-4 could positively regulate the protein levels of NFIC in BCa cells. In addition, we demonstrated for the first time that ECRG4 inhibits the nuclear factor (NF)-κB signaling pathway via the upregulation of OGN in BCa cells. Overall, these findings provide evidence that both ECRG4 and OGN function as tumor repressors and that overexpression of ECRG4 inhibits the NF-κB signaling pathway by promoting NFIC/OGN signaling in BCa cells. Our results reveal the molecular regulatory mechanisms of the ECRG4-mediated repression of the NFIC/OGN/NF-κB signaling pathway in BCa and provide potential biomarkers or therapeutic targets for BCa.
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Affiliation(s)
- Xin Liang
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China.,Department of Urology, Qingdao Municipal Hospital, Qingdao, China
| | - Jiangang Gao
- Department of Urology, Qingdao Municipal Hospital, Qingdao, China
| | - Quan Wang
- Department of Anesthesiology, Qingdao Municipal Hospital, Qingdao, China
| | - Sichuan Hou
- Department of Urology, Qingdao Municipal Hospital, Qingdao, China
| | - Changli Wu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin, China
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12
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Zhang Y, Xiao Q, Wu Z, Xu R, Zou S, Zhou C. AFF4 enhances odontogenic differentiation of human dental pulp cells. Biochem Biophys Res Commun 2020; 525:687-692. [PMID: 32139123 DOI: 10.1016/j.bbrc.2020.02.122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 02/20/2020] [Indexed: 02/08/2023]
Abstract
AFF4 is a component of super elongation complex (SECs) and functions as a scaffold protein to bridge the transcription elongation factors. It is associated with leukemia, HIV transcription, and head neck cancer. However, its role in odontogenic differentiation of dental pulp cells (DPCs) is unclear. Here, we show the expression of AFF4 is increased during odontogenesis. Depletion of AFF4 in human DPCs leads to a decrease of alkaline phosphatase (ALP) activity, calcium mineralization and odontogenic-related genes expression. On the contrary, Lentivirus-mediated overexpression of AFF4 induces the odontogenic potential of DPCs. Mechanistically, we found AFF4 regulates the transcription of NFIC, a key factor for tooth root formation. Overexpression of NFIC successfully rescues the restricted differentiation of AFF4-depleted cells. Our data demonstrate that AFF4 serves as a previously unknown regulator of odontogenesis.
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Affiliation(s)
- Yuning Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qingyue Xiao
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Zuping Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ruoshi Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Chenchen Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China; Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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13
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Zhang F, Liang M, Zhao C, Fu Y, Yu S. NFIC promotes the vitality and osteogenic differentiation of rat dental follicle cells. J Mol Histol 2019; 50:471-82. [PMID: 31432308 DOI: 10.1007/s10735-019-09841-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Accepted: 08/12/2019] [Indexed: 12/12/2022]
Abstract
Nuclear factor I-C (NFIC) plays critical roles in the regulation of tooth development by influencing the biological behaviors of stem cells in the dental germ. This study aimed to investigate the effect of NFIC on the vitality and osteogenic/cementogenic differentiation of rat dental follicle cells (DFCs). DFCs were isolated from dental follicles in the first molars of neonatal rats. DFCs expressed mesenchymal stromal cell markers CD29, CD44 and CD90 and had capabilities for self-renewal and multipotent differentiation. Overexpression of NFIC promoted the proliferation of DFCs without markedly influencing the apoptosis of DFCs. Moreover, NFIC increased alkaline phosphatase (ALP) activity in DFCs and upregulated the mRNA levels of osteogenic-related markers, namely, collagen type I (Col I), Runt-related transcription factor 2 (Runx2) and ALP, as well as β-catenin. In contrast, silencing NFIC by siRNA increased the apoptosis of DFCs and downregulated the expression of osteogenic-related markers. In conclusion, these results suggested that upregulation of NFIC may promote the proliferation and osteogenic/cementogenic differentiation of DFCs.
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14
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Abstract
Tooth is made of an enamel-covered crown and a cementum-covered root. Studies on crown dentin formation have been a major focus in tooth development for several decades. Interestingly, the population prevalence for genetic short root anomaly (SRA) with no apparent defects in crown is close to 1.3%. Furthermore, people with SRA itself are predisposed to root resorption during orthodontic treatment. The discovery of the unique role of Nfic (nuclear factor I C; a transcriptional factor) in controlling root but not crown dentin formation points to a new concept: tooth crown and root have different control mechanisms. Further genetic mechanism studies have identified more key molecules (including Osterix, β-catenin, and sonic hedgehog) that play a critical role in root formation. Extensive studies have also revealed the critical role of Hertwig's epithelial root sheath in tooth root formation. In addition, Wnt10a has recently been found to be linked to multirooted tooth furcation formation. These exciting findings not only fill the critical gaps in our understanding about tooth root formation but will aid future research regarding the identifying factors controlling tooth root size and the generation of a whole "bio-tooth" for therapeutic purposes. This review starts with human SRA and mainly focuses on recent progress on the roles of NFIC-dependent and NFIC-independent signaling pathways in tooth root formation. Finally, this review includes a list of the various Cre transgenic mouse lines used to achieve tooth root formation-related gene deletion or overexpression, as well as strengths and limitations of each line.
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Affiliation(s)
- J Wang
- 1 Biomedical Sciences, Texas A&M College of Dentistry, Dallas, TX, USA
- 2 State Key Laboratory of Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - J Q Feng
- 1 Biomedical Sciences, Texas A&M College of Dentistry, Dallas, TX, USA
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15
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Zhang H, Jiang Y, Qin C, Liu Y, Ho SP, Feng JQ. Essential role of osterix for tooth root but not crown dentin formation. J Bone Miner Res 2015; 30:742-6. [PMID: 25349111 PMCID: PMC4617775 DOI: 10.1002/jbmr.2391] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 10/15/2014] [Accepted: 10/24/2014] [Indexed: 11/11/2022]
Abstract
Tooth is made of crown and root. It is widely believed that dentin formation in crown and root uses the same regulatory mechanism. However, identification of nuclear factor 1 C (NFIC)'s unique function in determining root but not crown dentin formation challenges the old thinking. In searching for the target molecules downstream of NFIC, we unexpectedly found a sharp reduction of osterix (OSX), the key transcription factor in skeleton formation, in the Nfic knockout (Nfic-KO) tooth root. We then demonstrated a dose-dependent increase of Osx in the odontoblast cell line due to a transient transfection of Nfic expression plasmid. Studies of global and conditional Osx-KO mice revealed no apparent changes in the crown dentin tubules and dentin matrix. However, the OSX conditional KO (cKO) mice (crossed to the 2.3-kb collagen type 1 [Col1]-Cre) displayed an increase in cell proliferation but great decreases in expressions of root dentin matrix proteins (dentin matrix protein 1 [DMP1] and dentin sialophosphoprotein [DSPP]), leading to an inhibition in odontoblast differentiation, and short, thin root dentin with few dentin tubules. Compared to the Nfic-KO tooth, which contains essentially no dentin tubules and remains in a "root-less" status at adult stages, the Osx-cKO root phenotype had partially improved at the late stage, indicating that other factors can compensate for OSX function. Thus, we conclude that OSX, one of the key downstream molecules of NFIC, plays a critical role in root, but not crown, formation.
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Affiliation(s)
- Hua Zhang
- Biomedical Sciences, Texas A&M Baylor College of Dentistry, Dallas, TX, USA
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16
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Gao S, Zhao YM, Ge LH. Nuclear factor I-C expression pattern in developing teeth and its important role in odontogenic differentiation of human molar stem cells from the apical papilla. Eur J Oral Sci 2014; 122:382-90. [PMID: 25302926 DOI: 10.1111/eos.12151] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2014] [Indexed: 11/28/2022]
Abstract
Nuclear factor I-C (NFIC) has an important role in the development of murine dental roots, but its role in human root formation is unreported. We thus elucidated the regulatory role of NFIC in the differentiation of human stem cells from the apical papilla (hSCAPs). The first step for this was to determine the expression of NFIC in human teeth, and it was found that NFIC expression was restricted to the odontoblasts and preodontoblasts of the developing molars of humans and mice. NFIC was found to be expressed in odontoblast-like cells after the subcutaneous transplantation of hSCAPs. NFIC expression was concomitant with dentin sialophosphoprotein (DSPP) in the mineralization of hSCAPs. NFIC knockdown in hSCAPs significantly inhibited expression of DSPP and promoted that of dentin matrix protein 1 (DMP1), meanwhile upregulated the expression of TGF-β1 and downregulated SMAD3 and SMAD4. NFIC expression was significantly upregulated after TGF-β1 treatment in hSCAPs. NFIC knockdown prolonged G1 phase of the cell cycle, but had no effect on cell proliferation and migration. These results suggest that NFIC is involved in the development of human root dentin and the regulation of odontoblastic differentiation of hSCAPs. NFIC may participate in the DMP1-DSPP signaling pathway and comprises a complex signaling cycle with TGF-β1.
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Affiliation(s)
- Shuo Gao
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Peking University Health Science Center, Peking University, Beijing, China
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17
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Lee HK, Lee DS, Park SJ, Cho KH, Bae HS, Park JC. Nuclear factor I-C ( NFIC) regulates dentin sialophosphoprotein (DSPP) and E-cadherin via control of Krüppel-like factor 4 (KLF4) during dentinogenesis. J Biol Chem 2014; 289:28225-36. [PMID: 25138274 DOI: 10.1074/jbc.m114.568691] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Odontoblasts are a type of terminally differentiated matrix-secreting cells. A number of molecular mechanisms are involved in the differentiation of odontoblasts. Several studies demonstrated that Krüppel-like factor 4 (KLF4) promotes odontoblast differentiation via control of dentin sialophosphoprotein (DSPP). Because nuclear factor I-C (NFIC) is also known to control DSPP, we investigated the relationship between NFIC and KLF4 during odontoblast differentiation. Klf4 mRNA expression was significantly decreased in Nfic(-/-) pulp cells compared with wild type cells. In immunohistochemistry assays, dentin matrix protein 1 (Dmp1), and DSP protein expression was barely observed in Nfic(-/-) odontoblasts and dentin matrix. Nfic bound directly to the Klf4 promoter and stimulated Klf4 transcriptional activity, thereby regulating Dmp1 and DSPP expression during odontoblast differentiation. Nfic or Klf4 overexpression promoted mineralized nodule formation in MDPC-23 cells. In addition, Nfic overexpression also decreased Slug luciferase activity but augmented E-cadherin promoter activity via up-regulation of Klf4 in odontoblasts. Our study reveals important signaling pathways during dentinogenesis: the Nfic-Klf4-Dmp1-Dspp and the Nfic-Klf4-E-cadherin pathways in odontoblasts. Our results indicate the important role of NFIC in regulating KLF4 during dentinogenesis.
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Affiliation(s)
- Hye-Kyung Lee
- From the Department of Oral Histology-Developmental Biology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehagro, Chongro-gu, Seoul 110-749, Korea and
| | - Dong-Seol Lee
- From the Department of Oral Histology-Developmental Biology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehagro, Chongro-gu, Seoul 110-749, Korea and
| | - Su-Jin Park
- From the Department of Oral Histology-Developmental Biology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehagro, Chongro-gu, Seoul 110-749, Korea and
| | - Kwang-Hee Cho
- the Department of Dental Hygiene, Namseoul University, Cheon-An, Chung-Nam 331-707, Korea
| | - Hyun-Sook Bae
- the Department of Dental Hygiene, Namseoul University, Cheon-An, Chung-Nam 331-707, Korea
| | - Joo-Cheol Park
- From the Department of Oral Histology-Developmental Biology and Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehagro, Chongro-gu, Seoul 110-749, Korea and
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