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Hashemi M, Rashidi M, Hushmandi K, Ten Hagen TLM, Salimimoghadam S, Taheriazam A, Entezari M, Falahati M. HMGA2 regulation by miRNAs in cancer: affecting cancer hallmarks and therapy response. Pharmacol Res 2023; 190:106732. [PMID: 36931542 DOI: 10.1016/j.phrs.2023.106732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
High mobility group A 2 (HMGA2) is a protein that modulates the structure of chromatin in the nucleus. Importantly, aberrant expression of HMGA2 occurs during carcinogenesis, and this protein is an upstream mediator of cancer hallmarks including evasion of apoptosis, proliferation, invasion, metastasis, and therapy resistance. HMGA2 targets critical signaling pathways such as Wnt/β-catenin and mTOR in cancer cells. Therefore, suppression of HMGA2 function notably decreases cancer progression and improves outcome in patients. As HMGA2 is mainly oncogenic, targeting expression by non-coding RNAs (ncRNAs) is crucial to take into consideration since it affects HMGA2 function. MicroRNAs (miRNAs) belong to ncRNAs and are master regulators of vital cell processes, which affect all aspects of cancer hallmarks. Long ncRNAs (lncRNAs) and circular RNAs (circRNAs), other members of ncRNAs, are upstream mediators of miRNAs. The current review intends to discuss the importance of the miRNA/HMGA2 axis in modulation of various types of cancer, and mentions lncRNAs and circRNAs, which regulate this axis as upstream mediators. Finally, we discuss the effect of miRNAs and HMGA2 interactions on the response of cancer cells to therapy. Regarding the critical role of HMGA2 in regulation of critical signaling pathways in cancer cells, and considering the confirmed interaction between HMGA2 and one of the master regulators of cancer, miRNAs, targeting miRNA/HMGA2 axis in cancer therapy is promising and this could be the subject of future clinical trial experiments.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, 4815733971, Iran.
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
| | - Timo L M Ten Hagen
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mojtaba Falahati
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
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Li Z, Wu X, Li J, Yu S, Ke X, Yan T, Zhu Y, Cheng J, Yang J. HMGA2-Snai2 axis regulates tumorigenicity and stemness of head and neck squamous cell carcinoma. Exp Cell Res 2022; 418:113271. [PMID: 35764101 DOI: 10.1016/j.yexcr.2022.113271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 06/23/2022] [Accepted: 06/23/2022] [Indexed: 11/04/2022]
Abstract
Cancer stem cells (CSCs) are a tumorigenic cell subpopulation, which contributes to treatment resistance, tumor recurrence, and metastasis. This study aimed to investigate the role and underlying molecular targets of high mobility group AT-hook 2 (HMGA2) in the progression and CSCs regulation of head and neck squamous cell carcinoma (HNSCC). HMGA2 mRNA and protein expression levels were examined in HNSCC specimens and cells by qRT-PCR, Western blot, and immunohistochemistry. The roles of HMGA2 were validated via loss-of-function and exogenous overexpression experiments in vitro and in vivo, and CSCs properties were assessed by tumorsphere formation assay. Chromatin immunoprecipitation (ChIP) and luciferase reporter assays provided further insight into the molecular mechanisms by which HMGA2 regulates stemness. HMGA2 was abnormally overexpressed in HNSCC, and it promoted the expression of the CSCs markers including SOX2, CD133, CD44, ALDH1A1, and Bmi1. HMGA2 was correlated with stemness, malignant progression, and reduced survival in HNSCC. Luciferase reporter assay indicated that Snai2 was a direct downstream target gene of HMGA2. Mechanistically, ChIP-qPCR assay showed that HMGA2 was recruited to three binding sites on the Snai2 promoter, directly facilitating the transcription of Snai2 in HNSCC. Snai2 overexpression reversed the inhibitory effect of HMGA2 interference on the proliferation, invasion, and metastasis of HNSCC and CSC marker expression in vitro and in vivo. HMGA2 promoted the malignant progression of HNSCC and acquired CSCs properties through direct regulation of Snai2, thereby suggesting that targeting the HMGA2-Snai2 axis might be a promising therapeutic strategy for HNSCC.
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Affiliation(s)
- Zhongwu Li
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Xiang Wu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Jin Li
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Shijin Yu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Xueping Ke
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Tingyuan Yan
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China
| | - Yumin Zhu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Cheng
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
| | - Jianrong Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Oral Disease, Nanjing Medical University, Nanjing, China; Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
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Gao X, Wang X. HMGA2 rs968697 T > C polymorphism is associated with the risk of colorectal cancer. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:821-828. [PMID: 34284697 DOI: 10.1080/15257770.2021.1952596] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A genetic polymorphism (rs968697 T > C) in the HMGA2 gene has recently been linked to an increased risk of hepatoblastoma. However, no studies have been conducted to investigate the effect of the polymorphism on the risk of colorectal cancer (CRC). The study aimed to explore whether the rs968697 polymorphism had a significant impact on CRC risk. A total of 500 CRC patients and 500 age and gender matched healthy individuals were genotyped by using the SNaPshot method. Quantitative real-time PCR technology was used to detect the relative expression of the HMGA2 gene in 30 pairs of primary CRC and adjacent non-cancerous tissues. Results: HMGA2 rs968697 polymorphism was significantly associated with CRC risk [CC vs. TT: OR = 0.20, 95%CI = 0.06-0.70, P = 0.01; (CC + CT) vs. TT: OR = 0.71, 95%CI = 0.53-0.96, P = 0.02; CC vs. (CT + TT): OR = 0.21, 95%CI = 0.06-0.73, P = 0.01; C vs. T: OR = 0.67, 95%CI = 0.51-0.89, P < 0.01]. The analysis based on tumor stage indicated that the CRC patients with HMGA2 rs968697 C allele were less likely to have high-stage tumors. Furthermore, the genotype-tissue expression analysis revealed that the rs968697 CC genotype was linked to the low expression of HMGA2 gene. The in silico analysis revealed that the rs968697 polymorphism in the promoter region of the HMGA2 gene could influence transcription factor binding, including ATF6, DBP, CDPCR3, DR3, NRSF, PAX8, PPARA, SZF11, TAXCREB and POLR2A. In conclusion, our findings suggested that the HMGA2 rs968697 polymorphism was linked to CRC risk and could be used as a biomarker to detect CRC risk.
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Affiliation(s)
- Xueren Gao
- School of Pharmacy, Yancheng Teachers' University, Yancheng, Jiangsu, China
| | - Xiaoting Wang
- Physical Examination Centre, Xuhui District Central Hospital of Shanghai, Shanghai, China
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Zheng BT, Li QL, Lan T, Xie J, Lu YG, Zheng DL, Su BH. CDH11 Regulates Adhesion and Transcellular Migration of Tongue Squamous Cell Carcinoma. Onco Targets Ther 2021; 14:4211-4222. [PMID: 34295163 PMCID: PMC8291966 DOI: 10.2147/ott.s298614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 06/29/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose CDH11, as a member of cadherins, mediates homotypic cell adhesion. Some studies have shown that CDH11 plays an important role in the development of tumors, especially in the processes of tumor invasion and metastasis. While features of CDH11 in tongue squamous cell carcinoma (TSCC) are still indeterminate, the purpose of the present study is to explore the role of CDH11 in TSCC. Methods The expression of cadherin gene in a TSCC cell line with high metastatic potential (LN4) and the parental CAL27 were examined both in the TCGA database and in collected clinical samples, further verified by quantitative real-time PCR. The effects of CDH11 on the proliferation, apoptosis, migration, invasion and adhesion were tested in appropriate ways after CDH11 was overexpressed in TSCC cells. Results Among the 22 cadherin genes, CDH11 was one of the most obviously inhibited genes in LN4 cells as compared with the parental cells. Overexpression of CDH11 did not show a significant effect on cell proliferation, apoptosis, stemness, migration and invasion ability of TSCC cells themselves, but it increased the adhesion of TSCC cells with human oral epithelial cells and decreased their ability to pass through human oral epithelial cells (HOECs) for migration. Conclusion The results indicated that CDH11 plays as a tumor suppressor in tongue squamous cell carcinoma by inhibiting the invasion and migration of tongue cancer cells. CDH11 may serve as an effective clinical target for new tongue cancer treatments.
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Affiliation(s)
- Bi-Tan Zheng
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China.,Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, People's Republic of China
| | - Qing-Ling Li
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China.,Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, People's Republic of China
| | - Ting Lan
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China
| | - Jian Xie
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China.,Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, People's Republic of China
| | - You-Guang Lu
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China.,Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, People's Republic of China
| | - Da-Li Zheng
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China
| | - Bo-Hua Su
- Fujian Key Laboratory of Oral Diseases, Fujian Provincial Engineering Research Center of Oral Biomaterial, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350004, People's Republic of China.,Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, 350002, People's Republic of China
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Bonner MA, Morales-Hernández A, Zhou S, Ma Z, Condori J, Wang YD, Fatima S, Palmer LE, Janke LJ, Fowler S, Sorrentino BP, McKinney-Freeman S. 3' UTR-truncated HMGA2 overexpression induces non-malignant in vivo expansion of hematopoietic stem cells in non-human primates. Mol Ther Methods Clin Dev 2021; 21:693-701. [PMID: 34141824 PMCID: PMC8181581 DOI: 10.1016/j.omtm.2021.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/22/2021] [Indexed: 12/16/2022]
Abstract
Vector-mediated mutagenesis remains a major safety concern for many gene therapy clinical protocols. Indeed, lentiviral-based gene therapy treatments of hematologic disease can result in oligoclonal blood reconstitution in the transduced cell graft. Specifically, clonal expansion of hematopoietic stem cells (HSCs) highly expressing HMGA2, a chromatin architectural factor found in many human cancers, is reported in patients undergoing gene therapy for hematologic diseases, raising concerns about the safety of these integrations. Here, we show for the first time in vivo multilineage and multiclonal expansion of non-human primate HSCs expressing a 3' UTR-truncated version of HMGA2 without evidence of any hematologic malignancy >7 years post-transplantation, which is significantly longer than most non-human gene therapy pre-clinical studies. This expansion is accompanied by an increase in HSC survival, cell cycle activation of downstream progenitors, and changes in gene expression led by the upregulation of IGF2BP2, a mRNA binding regulator of survival and proliferation. Thus, we conclude that prolonged ectopic expression of HMGA2 in hematopoietic progenitors is not sufficient to drive hematologic malignancy and is not an acute safety concern in lentiviral-based gene therapy clinical protocols.
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Affiliation(s)
- Melissa A. Bonner
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | | | - Sheng Zhou
- Experimental Cell Therapeutics Lab, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Zhijun Ma
- Department of Bone Marrow Transplant and Cell Therapy, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Jose Condori
- Experimental Cell Therapeutics Lab, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Yong-Dong Wang
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Soghra Fatima
- Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Lance E. Palmer
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Laura J. Janke
- Veterinary Pathology Core, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Stephanie Fowler
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Brian P. Sorrentino
- Department of Hematology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
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Vallina C, López-Pintor RM, González-Serrano J, de Vicente JC, Hernández G, Lorz C. Genes involved in the epithelial-mesenchymal transition in oral cancer: A systematic review. Oral Oncol 2021; 117:105310. [PMID: 33901766 DOI: 10.1016/j.oraloncology.2021.105310] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 04/10/2021] [Accepted: 04/14/2021] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Epithelial-mesenchymal transition (EMT) is considered the initial step in the invasion-metastasis cascade. The aim of this systematic review was to study the signature of genes involved in the EMT process in oral cancer (OC) confirmed by protein expression and its possible relationship with oral squamous cell carcinoma (OSCC) prognostic variables. MATERIALS AND METHODS A search of the scientific literature was carried out with no start date restriction until 17 September 2020 in the electronic databases Pubmed/MEDLINE, Web of Science, Cochrane Library and Scopus, following specific eligibility criteria. The methodological quality of the included studies was assessed using the Newcastle-Ottawa tool. RESULTS A total of 8 retrospective cohort studies were included, all of them performed in China and with low risk of bias. Overexpression of the genes HNRNPC, ITGA5, HMGA2 and SRSF3, and low expression of ALDH3A1 and ARID2 promote EMT in OC. The more advanced clinical stages of the TNM classification were significantly associated with overexpression of HNRNPC, ITGA5, HMGA2 and SRSF3, and low expression of ARID2. CONCLUSIONS HNRNPC, ITGA5, HMGA2, SRSF3, ALDH3A1 and ARID2 genes were associated with EMT process. Over- or under-expression of these genes is associated with worse stages of OSCC and/or worse prognosis of the tumor. Further studies on this topic are needed in different countries to be able to confirm these results, since the detection of these genes can help to know which tumors have a worse prognosis.
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Affiliation(s)
- Carmen Vallina
- School of Medicine and Dentistry, Oviedo University, Julián clavería s/n, 33006 Oviedo, Spain
| | - Rosa María López-Pintor
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
| | - José González-Serrano
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
| | - Juan Carlos de Vicente
- ORALMED Research Group, Department of Oral and Maxillofacial Surgery, Hospital Central Universitario de Asturias (HUCA), Carretera de Rubín s/n, 33011 Oviedo, Asturias, Spain.
| | - Gonzalo Hernández
- ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry, Complutense University, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
| | - Corina Lorz
- Molecular Oncology Unit, Environmental and Technological Energy Research Center (CIEMAT), Avd. Complutense 40, 28040, Spain; Research Institute 12 de Octubre i+12, University Hospital 12 de Octubre, Ave Córdoba s/n, 28041, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Ave Monforte de Lemos 3-5, 28029 Madrid, Spain.
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Wang Q, Wang G, Xu X, Chen Z. miR-760 mediated the proliferation and metastasis of hepatocellular carcinoma cells by regulating HMGA2. Pathol Res Pract 2021; 222:153420. [PMID: 33887625 DOI: 10.1016/j.prp.2021.153420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND The purpose of our study was to investigate the roles of miR-760 and its potential mechanisms in HCC. METHODS The functions of miR-760 were identified and measured by MTT, colony formation, transwell, and flow cytometry assays. Luciferase assay was applied to verify the direct binding of miR-760 on HMGA2 3'untranslated region (3'UTR). Then, in vitro experiment was used to investigate the biological effects of miR-760 and HMGA2. Luciferase and ChIP assays were used to detect the validity of SP1 binding sites on the miR-760 promoter. RESULTS We demonstrated that miR-760 overexpression suppressed cell proliferation, migration, and invasion in HCC. Besides, HMGA2 was demonstrated as a direct target gene of miR-760. Furthermore, we found that methylation may result in the downregulation of miR-760, and SP1 could inhibit the transcription of miR-760. CONCLUSIONS Our study demonstrated that SP1/miR-760/HMGA2 may serve as a molecular regulatory axis for HCC treatment.
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Affiliation(s)
- Quhui Wang
- Department of General Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China
| | - Gang Wang
- Department of Anesthesiology, Union Hospital Affiliated With Tongji Medical College of Huazhong University of Science and Technology, Wuhan, 430000, China
| | - Xiaodong Xu
- Department of General Surgery, The 4th Affiliated Hospital of Nantong University, Yancheng, 224000, China
| | - Zhong Chen
- Department of General Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215000, China; Department of General Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China.
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HMGA2 as a Critical Regulator in Cancer Development. Genes (Basel) 2021; 12:genes12020269. [PMID: 33668453 PMCID: PMC7917704 DOI: 10.3390/genes12020269] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/01/2021] [Accepted: 02/08/2021] [Indexed: 02/07/2023] Open
Abstract
The high mobility group protein 2 (HMGA2) regulates gene expression by binding to AT-rich regions of DNA. Akin to other DNA architectural proteins, HMGA2 is highly expressed in embryonic stem cells during embryogenesis, while its expression is more limited at later stages of development and in adulthood. Importantly, HMGA2 is re-expressed in nearly all human malignancies, where it promotes tumorigenesis by multiple mechanisms. HMGA2 increases cancer cell proliferation by promoting cell cycle entry and inhibition of apoptosis. In addition, HMGA2 influences different DNA repair mechanisms and promotes epithelial-to-mesenchymal transition by activating signaling via the MAPK/ERK, TGFβ/Smad, PI3K/AKT/mTOR, NFkB, and STAT3 pathways. Moreover, HMGA2 supports a cancer stem cell phenotype and renders cancer cells resistant to chemotherapeutic agents. In this review, we discuss these oncogenic roles of HMGA2 in different types of cancers and propose that HMGA2 may be used for cancer diagnostic, prognostic, and therapeutic purposes.
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Zhao YC, Jiao Y, Li YQ, Fu Z, Yang ZY, He M. Elevated high mobility group A2 expression in liver cancer predicts poor patient survival. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2021; 112:27-33. [PMID: 31823639 DOI: 10.17235/reed.2019.6365/2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
BACKGROUND liver cancer is a malignant tumor with a high morbidity and mortality that endangers human health. High mobility group A2 (HMGA2) is a chromosome associated protein that participates in embryogenesis, tissue development, tumorigenesis and development. OBJECTIVE to explore the relationship between HMGA2 expression and the clinicopathological parameters and survival of liver cancer patients using The Cancer Genome Atlas Liver Hepatocellular Carcinoma (HCC) data. METHODS RNA-sequencing data and the corresponding clinical characteristics of the patients were downloaded from the Atlas database. The Chi-squared test was used to assess the relationship between HMGA2 expression and clinical variables. Cox regression analysis was used to compare survival rates between the high- and low-expressing groups; the p-values and Kaplan-Meier survival curves were compared using the log-rank test. RESULTS RNA-seq data from 373 cases of liver cancer cases were analyzed. HMGA2 was overexpressed in liver cancer and significantly associated with gender (p = 0.0357), T classification (p = 0.0063), clinical classification (p = 0.0026) and overall survival (p = 0.0386). According to the multivariate analysis, HMGA2 could independently predict overall survival in liver cancer. CONCLUSIONS HMGA2 independently predicts poor prognosis in liver cancer and serves as a molecular marker to determine disease prognosis.
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Affiliation(s)
- Yue-Chen Zhao
- Radiation Oncology, The Second Hospital of Jilin University, China
| | - Yan Jiao
- Department of hepatobiliary and pancreatic surgery, Jilin University
| | - Yan-Qing Li
- Pathophysiology, College of Basic Medical Sciences, Jilin University, China
| | - Zhuo Fu
- Hand and Foot Surgery, The First Hospital of Jilin University
| | - Zhao-Ying Yang
- Breast Surgery, China-Japan Union Hospital of Jilin University, China
| | - Miao He
- Anesthesia, The Second Hospital of Jilin University, China
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Hou C, Dong Y, Du B. Long Non-Coding RNA LINC00466 Knockdown Inhibits Tongue Squamous Cell Carcinoma Malignancy by Targeting microRNA-493/HMGA2. Cancer Manag Res 2020; 12:13071-13084. [PMID: 33376400 PMCID: PMC7764812 DOI: 10.2147/cmar.s282625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/23/2020] [Indexed: 01/12/2023] Open
Abstract
Purpose Long intergenic non-protein-coding RNA 00466 (LINC00466) promotes lung adenocarcinoma progression. Nonetheless, the expression and precise roles of LINC00466 in tongue squamous cell carcinoma (TSCC) remains uncertain and warrant further investigation. Hence, the present study aimed to examine the LINC00466 effects on the aggressive TSCC cell characteristics and to elucidate the potential underlying mechanisms. Methods First, LINC00466 expression in TSCC was determined by reverse transcription-quantitative PCR. Subsequently, cell proliferation, apoptosis, migration, and invasion in vitro, as well as tumor growth in vivo were assessed to examine the LINC00466 effects on TSCC cells. Results LINC00466 was upregulated in TSCC. This upregulation was notably associated with shorter overall TSCC patient survival. In vitro experiments indicated that LINC00466 depletion suppressed TSCC cell proliferation, migration and invasion, and promoted apoptosis. An in vivo experiment revealed that LINC00466 downregulation attenuated TSCC tumor growth in vivo. Mechanistic analysis revealed that LINC00466 functions as a microRNA-493 (miR-493) molecular sponge, a miRNA that targets high-mobility group AT-hook 2 (HMGA2) mRNA. LINC00466 upregulated HMGA2 in TSCC cells, and this phenomenon was regulated by the miR-493 sponge. Rescue experiments revealed a decrease in the miR-493/HMGA2 axis output, partially reversing the effects of LINC00466 downregulation on aggressive TSCC cell behavior. Conclusion These findings demonstrate that LINC00466 promotes TSCC cell oncogenicity in vitro and in vivo by upregulating the miR-493/HMGA2 axis output. These results may provide a new perspective and new insight into the molecular mechanisms of TSCC.
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Affiliation(s)
- Chao Hou
- Department of Stomatology, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, People's Republic of China
| | - Yanli Dong
- Department of Stomatology, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, People's Republic of China
| | - Bo Du
- Department of Stomatology, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, People's Republic of China
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Wang MD, Xing H, Li C, Liang L, Wu H, Xu XF, Sun LY, Wu MC, Shen F, Yang T. A novel role of Krüppel-like factor 8 as an apoptosis repressor in hepatocellular carcinoma. Cancer Cell Int 2020; 20:422. [PMID: 32874135 PMCID: PMC7456055 DOI: 10.1186/s12935-020-01513-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/21/2020] [Indexed: 01/04/2023] Open
Abstract
Background Krüppel-like factor 8 (KLF8), a cancer-promoting factor that regulates critical gene transcription and cellular cancer-related events, has been implicated in tumor development and progression. However, the functional role of KLF8 in the pathogenesis of hepatocellular carcinoma (HCC) remains largely unknown. Methods The gene expression patterns and genome-wide regulatory profiles of HCC cells after KLF8 knockout were analyzed by using RNA sequencing (RNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) of histone H3 lysine 27 acetylation (H3K27ac) combined with bioinformatics analysis. Transcription factor-binding motifs that recognized by KLF8 were evaluated by motif analysis. For the predicted target genes, transcriptional changes were examined by ChIP, and loss of function experiments were conducted by siRNA transfection. Results KLF8 functioned as a transcription repressor in HCC and mainly regulated apoptotic-related genes directly. A total of 1,816 differentially expressed genes after KLF8 knockout were identified and significantly corresponded to global changes in H3K27ac status. Furthermore, two predicted target genes, high-mobility group AT-hook 2 (HMGA2) and matrix metalloproteinase 7 (MMP7), were identified as important participants in KLF8-mediated anti-apoptotic effect in HCC. Knockout of KLF8 enhanced cell apoptosis process and caused increase in the associated H3K27ac, whereas suppression HMGA2 or MMP7 attenuated these biological effects. Conclusions Our work suggests a novel role and mechanism for KLF8 in the regulation of cell apoptosis in HCC and facilitates the discovery of potential therapeutic targets for HCC treatment.
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Affiliation(s)
- Ming-Da Wang
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Hao Xing
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Chao Li
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Lei Liang
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Han Wu
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Xin-Fei Xu
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Li-Yang Sun
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China.,Department of Clinical Medicine, Second Military Medical University (Navy Medical University), Shanghai, China
| | - Meng-Chao Wu
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Feng Shen
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
| | - Tian Yang
- Department of Hepatobiliary Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University (Navy Medical University), No. 225, Changhai Road, Shanghai, 200438 China
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Xiong L, Tang Y, Tang J, Liu Z, Wang X. Downregulation of lncRNA HOTTIP Suppresses the Proliferation, Migration, and Invasion of Oral Tongue Squamous Cell Carcinoma by Regulation of HMGA2-Mediated Wnt/β-Catenin Pathway. Cancer Biother Radiopharm 2020; 35:720-730. [PMID: 31910357 DOI: 10.1089/cbr.2019.3017] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Background: Oral tongue squamous cell carcinoma (OTSCC) is a common type of oral tumor. LncRNAs (long noncoding RNAs) and miRNAs (microRNAs) were identified as regulators in many human cancers. This study aims to explore the molecular basis of HOXA transcript at the distal tip (HOTTIP) in regulating OTSCC progression. Materials and Methods: The expression of HOTTIP, miR-124-3p, and high-mobility group AT-hook 2 (HMGA2) was detected by quantitative real-time polymerase chain reaction. Next, the proliferation was evaluated by 3-(4,5-dimethylthiazole-2-y1)-2,5-biphenyl tetrazolium bromide (MTT) assay. The migration and invasion were assessed by transwell assay. Furthermore, dual-luciferase reporter assay was performed to confirm the combination between HOTTIP and miR-124-3p, miR-124-3p, and HMGA2. Protein levels of HMGA2, β-catenin, c-Myc, and E-cadherin were examined by Western blot. The nude mice model was employed to test the tumor growth in vivo. Results: HOTTIP was upregulated in OTSCC tissues and cells, and was highly expressed in positive lymph node metastasis and late-stage OTSCC patients. Silencing HOTTIP impeded proliferation, migration, and invasion of OTSCC cells. Moreover, HOTTIP knockdown inhibited proliferation, migration, and invasion of OTSCC cells by targeting miR-124-3p. Besides, miR-124-3p targeted HMGA2 to block proliferation, migration, and invasion. HMGA2 could rescue the inhibitory effects of HOTTIP interference on proliferation, migration, and invasion. In addition, HMGA2 overexpression reversed the downregulation of β-catenin and c-Myc protein levels and upregulation of E-cadherin level affected by HOTTIP silencing. Finally, HOTTIP silencing repressed tumor growth and resulted in a great rise on miR-124-3p and E-cadherin expression and a distinct fall on HMGA2, β-catenin, and c-Myc protein levels. Conclusions: HOTTIP knockdown restrained proliferation, migration, and invasion of OTSCC cells by miR-124-3p/HMGA2 axis through Wnt/β-catenin pathway.
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Affiliation(s)
- Lei Xiong
- Department of Stomatology, Central Hospital of Jingzhou, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Yi Tang
- Department of Stomatology, Central Hospital of Jingzhou, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Jing Tang
- Department of Stomatology, Central Hospital of Jingzhou, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Zhaoyang Liu
- Department of Stomatology, Central Hospital of Jingzhou, The Second Clinical Medical College, Yangtze University, Jingzhou, China
| | - Xiaozhou Wang
- Department of Clinical Medicine, Hubei College of Chinese Medicine, Jingzhou, China
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13
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Jiao D, Liu Y, Tian Z. microRNA-493 inhibits tongue squamous cell carcinoma oncogenicity via directly targeting HMGA2. Onco Targets Ther 2019; 12:6947-6959. [PMID: 31695410 PMCID: PMC6717877 DOI: 10.2147/ott.s210567] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 08/01/2019] [Indexed: 12/21/2022] Open
Abstract
Backgrounds microRNA-493-3p (miR-493) has been reported to be critically downregulated in multiple types of human cancer. However, the expression level, biological roles and underlying mechanism of miR‑493 in tongue squamous cell carcinoma (TSCC) remain to be elucidated. Methods RT-qPCR was utilized for the determination of miR-493 expression in TSCC tissues and cell lines. The influence of miR-493 overexpression on TSCC cell proliferation, apoptosis, migration, invasion in vitro and tumor growth in vivo were explored via MTT assay, flow cytometry analysis, cell migration and invasion assays, and xenograft tumors in nude mice, respectively. Bioinformatics analysis, luciferase reporter assays, RT-qPCR and Western blotting were performed to clarify the potential mechanisms involved in the action of miR-493 in TSCC cells. Results miR-493 was significantly downregulated in TSCC tissues and cell lines. Decreased miR-493 expression was notably correlated with tumor differentiation, depth of invasion and TNM stage. Additionally, patients with TSCC having low miR-493 expression showed lower overall survival rate. Functionally, miR-493 upregulation inhibited TSCC cell proliferation, migration, invasion in vitro; induced cell apoptosis; and decreased the tumor growth in vivo. Bioinformatics analysis followed by luciferase reporter assays also demonstrated that miR-493 directly bound to the 3'-untranslated region of high-mobility group AT-hook 2 (HMGA2) in TSCC cells, and therefore reduced HMGA2 expression at the mRNA and protein level. Furthermore, HMGA2 was overexpressed in TSCC tissues and inversely correlated with miR-493. Moreover, silenced HMGA2 expression simulated the tumor-suppressing roles of miR-493 overexpression on TSCC cells. HMGA2 overexpression eliminated the inhibitory roles of miR-493 overexpression on TSCC cells. Conclusion These observations demonstrated that miR-493 is a tumor suppressor inhibited the oncogenicity of TSCC cells by directly targeting HMGA2. These results provide sufficient evidence for the miR-493/HMGA2 axis as a novel therapeutic target for the treatment of patients with TSCC in the future.
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Affiliation(s)
- Dan Jiao
- Department of Ultrasound, China-Japan Union Hospital, Jilin University, Changchun 130033, People's Republic of China
| | - Yingying Liu
- Department of Nephrology, China-Japan Union Hospital, Jilin University, Changchun 130033, People's Republic of China
| | - Zhen Tian
- Department of Cardiology, China-Japan Union Hospital, Jilin University, Changchun 130033, People's Republic of China
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Zhang S, Mo Q, Wang X. Oncological role of HMGA2 (Review). Int J Oncol 2019; 55:775-788. [PMID: 31432151 DOI: 10.3892/ijo.2019.4856] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/17/2019] [Indexed: 11/06/2022] Open
Abstract
The high mobility group A2 (HMGA2) protein is a non‑histone architectural transcription factor that modulates the transcription of several genes by binding to AT‑rich sequences in the minor groove of B‑form DNA and alters the chromatin structure. As a result, HMGA2 influences a variety of biological processes, including the cell cycle process, DNA damage repair process, apoptosis, senescence, epithelial‑mesenchymal transition and telomere restoration. In addition, the overexpression of HMGA2 is a feature of malignancy, and its elevated expression in human cancer predicts the efficacy of certain chemotherapeutic agents. Accumulating evidence has suggested that the detection of HMGA2 can be used as a routine procedure in clinical tumour analysis.
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Affiliation(s)
- Shizhen Zhang
- Department of Breast Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiuping Mo
- Department of Surgical Oncology and Cancer Institute, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Xiaochen Wang
- Department of Breast Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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MicroRNA-34a-5p suppresses tumorigenesis and progression of glioma and potentiates Temozolomide-induced cytotoxicity for glioma cells by targeting HMGA2. Eur J Pharmacol 2019; 852:42-50. [PMID: 30851271 DOI: 10.1016/j.ejphar.2019.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/27/2019] [Accepted: 03/06/2019] [Indexed: 02/08/2023]
Abstract
Glioma is a frequently diagnosed brain tumors and Temozolomide (TMZ) is a common chemotherapeutic drug for glioma. High mobility group AT-hook 2 (HMGA2) was reported to be linked with glioma pathogenesis and Temozolomide (TMZ)-induced cytotoxicity. Our present study aimed to further search for the upstream regulatory microRNAs (miRNAs) of HMGA2 in glioma. RT-qPCR assay was conducted to measure the expression of HMGA2 mRNA and microRNA-34a-5p (miR-34a-5p). HMGA2 protein expression was examined by western blot assay. Cell proliferative ability and cell viability was assessed by CCK-8 assay. Cell migratory and invasive capacities were estimated by Transwell migration and invasion assay. Bioinformatics analysis and luciferase reporter assay was conducted to investigate the potential interaction between miR-34a-5p and HMGA2. Mouse xenograft experiments were performed to further test the roles of TMZ, miR-34a-5p and HMGA2, alone or in combination, in glioma tumorigenesis in vivo. We found HMGA2 expression was notably upregulated in glioma tissues and cells, and associated with glioma grade and poor prognosis. HMGA2 knockdown or miR-34a-5p overexpression inhibited migration, invasion, proliferation and enhanced TMZ-induced cytotoxicity in glioma cells. Moreover, HMGA2 was a target of miR-34a-5p. And, miR-34a-5p expression was remarkably reduced in glioma tissues and cells. MiR-34a-5p exerted its function through targeting HMGA2 in glioma cells. HMGA2 knockdown or miR-34a-5p overexpression inhibited tumor growth and enhanced TMZ-mediated anti-tumor effect in glioma xenograft models. We concluded MiR-34a-5p suppressed tumorigenesis and progression of glioma and potentiated TMZ-induced cytotoxicity for glioma cells by targeting HMGA2, deepening our understanding on molecular basis of HMGA2 in glioma.
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Xing F, Song Z, He Y. MiR-219-5p inhibits growth and metastasis of ovarian cancer cells by targeting HMGA2. Biol Res 2018; 51:50. [PMID: 30474570 PMCID: PMC6260846 DOI: 10.1186/s40659-018-0199-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 11/18/2018] [Indexed: 12/31/2022] Open
Abstract
Background Accumulating studies have demonstrated that high-mobility group A2 (HMGA2), an oncofetal protein, plays a role in tumor development and progression. However, the molecular role of HMGA2 in ovarian carcinoma is yet to be established. MicroRNAs (miRNAs), a group of small noncoding RNAs, negatively regulate gene expression and their dysregulation has been implicated in tumorigenesis. The aim of this study was to investigate the potential involvement of a specific miRNA, miR-219-5p, in HMGA2-induced ovarian cancer. Methods The ovarian cancer cell line, SKOV3, was employed, and miR-219-5p and HMGA2 overexpression vectors constructed. The CCK-8 kit was used to determine cell proliferation and the Transwell® assay used to measure cell invasion and migration. RT-PCR and western blot analyses were applied to analyze the expression of miR-219-5p and HMGA2, and the luciferase reporter assay used to examine the interactions between miR-219-5p and HMGA2. Nude mice were employed to characterize in vivo tumor growth regulation. Results Expression of miR-219-5p led to suppression of proliferation, invasion and migration of the ovarian cancer cell line, SKOV3, by targeting HMGA2. The inhibitory effects of miR-219-5p were reversed upon overexpression of HMGA2. Data from the luciferase reporter assay showed that miR-219-5p downregulates HMGA2 via direct integration with its 3′-UTR. Consistent with in vitro findings, expression of miR-219-5p led to significant inhibition of tumor growth in vivo. Conclusion Our results collectively suggest that miR-219-5p inhibits tumor growth and metastasis by targeting HMGA2.
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Affiliation(s)
- Feng Xing
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital of Tongji University, Tongji University School of Medicine, No 301 Middle Yan Chang Road, Shanghai, 200072, China
| | - Zhijiao Song
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital of Tongji University, Tongji University School of Medicine, No 301 Middle Yan Chang Road, Shanghai, 200072, China
| | - Yuanying He
- Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital of Tongji University, Tongji University School of Medicine, No 301 Middle Yan Chang Road, Shanghai, 200072, China.
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Bierbaumer L, Schwarze UY, Gruber R, Neuhaus W. Cell culture models of oral mucosal barriers: A review with a focus on applications, culture conditions and barrier properties. Tissue Barriers 2018; 6:1479568. [PMID: 30252599 PMCID: PMC6389128 DOI: 10.1080/21688370.2018.1479568] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Understanding the function of oral mucosal epithelial barriers is essential for a plethora of research fields such as tumor biology, inflammation and infection diseases, microbiomics, pharmacology, drug delivery, dental and biomarker research. The barrier properties are comprised by a physical, a transport and a metabolic barrier, and all these barrier components play pivotal roles in the communication between saliva and blood. The sum of all epithelia of the oral cavity and salivary glands is defined as the blood-saliva barrier. The functionality of the barrier is regulated by its microenvironment and often altered during diseases. A huge array of cell culture models have been developed to mimic specific parts of the blood-saliva barrier, but no ultimate standard in vitro models have been established. This review provides a comprehensive overview about developed in vitro models of oral mucosal barriers, their applications, various cultivation protocols and corresponding barrier properties.
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Affiliation(s)
- Lisa Bierbaumer
- a Competence Unit Molecular Diagnostics, Center Health and Bioresources, Austrian Institute of Technology (AIT) GmbH , Vienna , Austria
| | - Uwe Yacine Schwarze
- b Department of Oral Biology , School of Dentistry, Medical University of Vienna , Vienna , Austria.,c Austrian Cluster for Tissue Regeneration , Vienna , Austria
| | - Reinhard Gruber
- b Department of Oral Biology , School of Dentistry, Medical University of Vienna , Vienna , Austria.,c Austrian Cluster for Tissue Regeneration , Vienna , Austria.,d Department of Periodontology , School of Dental Medicine, University of Bern , Bern , Switzerland
| | - Winfried Neuhaus
- a Competence Unit Molecular Diagnostics, Center Health and Bioresources, Austrian Institute of Technology (AIT) GmbH , Vienna , Austria
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