1
|
Niu Y, Li H, Han W, Rong A. Relationship Between Changes in the Expression Levels of miR-134 and E2F6 in Mediating Control of Apoptosis in NMDA-Induced Glaucomatous Mice. J INVEST SURG 2024; 37:2389379. [PMID: 39164010 DOI: 10.1080/08941939.2024.2389379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 07/29/2024] [Accepted: 07/31/2024] [Indexed: 08/22/2024]
Abstract
OBJECTIVE This investigation was to determine the relationship between changes in the expression levels of miR-134 and the E2F transcription factor 6 (E2F6) in mediating control of apoptosis in N-methyl-D-aspartate (NMDA)-induced glaucomatous mice. METHODS Morphological and structural changes were quantitatively analyzed along with apoptosis in the retinal ganglion cell (RGC) layer, internal plexiform layer and RGCs. Glaucomatous RGCs were transfected, and cell viability and apoptosis were examined. The targeting relationship between miR-134 and E2F6 was analyzed, as well as their expression pattern. RESULTS Intravitreal injection of NMDA induced a significant reduction in the number of RGCs and thinning of IPL thickness. miR-134 was highly expressed and E2F6 was lowly expressed in glaucoma mice. Suppression of miR-134 or E2F6 overexpression inhibited apoptosis in the glaucomatous RGCs and instead their proliferative activity. MiR-134 targeted inhibition of E2F6 expression. Suppressing rises in E2F6 expression reduced the interfering effect of miR-134 on glaucomatous RGC development. CONCLUSION Depleting miR134 expression increases, in turn, E2F6 expression levels and in turn reduces glaucomatous RGC apoptosis expression.
Collapse
Affiliation(s)
- Yunli Niu
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Houshuo Li
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wenting Han
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ao Rong
- Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| |
Collapse
|
2
|
Yu Y, Ma S, Zhou J. Identification of Hub Genes for Psoriasis and Cancer by Bioinformatic Analysis. BIOMED RESEARCH INTERNATIONAL 2024; 2024:5058607. [PMID: 39045407 PMCID: PMC11265948 DOI: 10.1155/2024/5058607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/11/2024] [Accepted: 06/18/2024] [Indexed: 07/25/2024]
Abstract
Psoriasis increases the risk of developing various cancers, including colon cancer. The pathogenesis of the co-occurrence of psoriasis and cancer is not yet clear. This study is aimed at analyzing the pathogenesis of psoriasis combined with cancer by bioinformatic analysis. Skin tissue data from psoriasis (GSE117239) and intestinal tissue data from colon cancer (GSE44076) were downloaded from the GEO database. One thousand two hundred ninety-six common differentially expressed genes and 688 common shared genes for psoriasis and colon cancer were determined, respectively, using the limma R package and weighted gene coexpression network analysis (WGCNA) methods. The results of the GO and KEGG enrichment analyses were mainly related to the biological processes of the cell cycle. Thirteen hub genes were selected, including AURKA, DLGAP5, NCAPG, CCNB1, NDC80, BUB1B, TTK, CCNB2, AURKB, TOP2A, ASPM, BUB1, and KIF20A. These hub genes have high diagnostic value, and most of them are positively correlated with activated CD4 T cells. Three hub transcription factors (TFs) were also predicted: E2F1, E2F3, and BRCA1. These hub genes and hub TFs are highly expressed in various cancers. Furthermore, 251 drugs were predicted, and some of them overlap with existing therapeutic drugs for psoriasis or colon cancer. This study revealed some genetic mechanisms of psoriasis and cancer by bioinformatic analysis. These hub genes, hub TFs, and predicted drugs may provide new perspectives for further research on the mechanism and treatment.
Collapse
Affiliation(s)
- Yao Yu
- Department of DermatologyShanghai Putuo District Liqun Hospital, Shanghai 200333, China
| | - Shaoze Ma
- Department of Urology SurgeryBaoshan Branch of Shanghai Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201999, China
| | - Jinzhe Zhou
- Department of General SurgeryTongji HospitalTongji University School of Medicine, Shanghai 200065, China
| |
Collapse
|
3
|
Yue Y, Lu B, Ni G. Circ_0001495 influences the development of endometriosis through the miRNA-34c-5p/E2F3 axis. Reprod Biol 2024; 24:100876. [PMID: 38458026 DOI: 10.1016/j.repbio.2024.100876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 01/25/2024] [Accepted: 02/17/2024] [Indexed: 03/10/2024]
Abstract
Endometriosis is a chronic gynecological condition characterized by the presence of endometrial glands and stroma outside the uterine cavity., accounting for 7% of all female malignant tumors and 20%- 30% of malignant tumors of the female reproductive system. Multiple studies have shown that circular RNA (circRNA) has the potential to become a targeted target and marker for EM. However, the roles of circ_0001495 in EM are still unclear. Our research aims to reveal the molecular mechanism of circ_0001495 in EM. In this study, RT-PCR or western blot were conducted to determine mRNA and protein expression. cell viability, proliferation, migration, invasion, and apoptosis were assessed by CCK-8, EdU, wound healing, transwell, and flow cytometry analyses, respectively. Additionally, the targeting relationship between miR-34c-5p and circ_0001495 or E2F3 was confirmed through dual-luciferase reporter gene assay. We found significant overexpression of circ_0001495 in EM tissues and cells. Knockdown of circ_0001495 inhibited the proliferation, migration and invasion of ectopic endometrial stromal cells (EESCs) and increased cell apoptosis. Moreover, we found that circ_0001495 regulated E2F3 levels by interacting with miR-34c-5p in EESC. Furthermore, in vitro, miR-34c-5p inhibition or E2F3 overexpression could attenuate the effect of circ_0001495 silencing on EM progression. In addition, the vivo experiment demonstrated that inhibition of circ_0001495 could repress the development of endometriosis by regulating the miR-34c-5p/E2F3 axis. In conclusion, our study suggested that circ_0001495 promoted EM progression in vitro and in vivo through the miR-34c-5p/E2F3 axis, which might be a potential therapeutic target for EM.
Collapse
Affiliation(s)
- Yan Yue
- Anhui Medical University, Hefei, Anhui 230032, China; Department of Gynaecology, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui 241000, China; Department of Gynaecology, The First People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Bin Lu
- Department of Gynaecology, The First People's Hospital of Wuhu, Wuhu, Anhui 241000, China
| | - Guantai Ni
- Anhui Medical University, Hefei, Anhui 230032, China; Department of Gynaecology, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui 241000, China.
| |
Collapse
|
4
|
Malik S, Pradeep SP, Kumar V, Xiao Y, Deng Y, Fan R, Vasquez JC, Singh V, Bahal R. Antitumor efficacy of a sequence-specific DNA-targeted γPNA-based c-Myc inhibitor. Cell Rep Med 2024; 5:101354. [PMID: 38183981 PMCID: PMC10829792 DOI: 10.1016/j.xcrm.2023.101354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 09/21/2023] [Accepted: 12/11/2023] [Indexed: 01/08/2024]
Abstract
Targeting oncogenes at the genomic DNA level can open new avenues for precision medicine. Significant efforts are ongoing to target oncogenes using RNA-targeted and protein-targeted platforms, but no progress has been made to target genomic DNA for cancer therapy. Here, we introduce a gamma peptide nucleic acid (γPNA)-based genomic DNA-targeted platform to silence oncogenes in vivo. γPNAs efficiently invade the mixed sequences of genomic DNA with high affinity and specificity. As a proof of concept, we establish that γPNA can inhibit c-Myc transcription in multiple cell lines. We evaluate the in vivo efficacy and safety of genomic DNA targeting in three pre-clinical models. We also establish that anti-transcription γPNA in combination with histone deacetylase inhibitors and chemotherapeutic drugs results in robust antitumor activity in cell-line- and patient-derived xenografts. Overall, this strategy offers a unique therapeutic platform to target genomic DNA to inhibit oncogenes for cancer therapy.
Collapse
Affiliation(s)
- Shipra Malik
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Sai Pallavi Pradeep
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Vikas Kumar
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Yong Xiao
- Department of Biomedical Engineering, Yale University, New Haven, CT 06510, USA; Department of Neurosurgery, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Yanxiang Deng
- Department of Biomedical Engineering, Yale University, New Haven, CT 06510, USA; Yale Stem Cell Center and Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520, USA
| | - Rong Fan
- Department of Biomedical Engineering, Yale University, New Haven, CT 06510, USA; Yale Stem Cell Center and Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520, USA; Human and Translational Immunology, Yale School of Medicine, New Haven, CT 06520, USA; Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA
| | - Juan C Vasquez
- Department of Pediatrics, Yale School of Medicine, New Haven, CT 06520, USA
| | - Vijender Singh
- Institute for Systems Genomics, University of Connecticut, Storrs, CT 06269, USA
| | - Raman Bahal
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA.
| |
Collapse
|
5
|
Lian M, Mortoglou M, Uysal-Onganer P. Impact of Hypoxia-Induced miR-210 on Pancreatic Cancer. Curr Issues Mol Biol 2023; 45:9778-9792. [PMID: 38132457 PMCID: PMC10742176 DOI: 10.3390/cimb45120611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/29/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023] Open
Abstract
Pancreatic cancer (PC) poses significant clinical challenges, with late-stage diagnosis and limited therapeutic options contributing to its dismal prognosis. A hallmark feature of PC is the presence of a profoundly hypoxic tumour microenvironment, resulting from various factors such as fibrotic stroma, rapid tumour cell proliferation, and poor vascularization. Hypoxia plays a crucial role in promoting aggressive cancer behaviour, therapeutic resistance, and immunosuppression. Previous studies have explored the molecular mechanisms behind hypoxia-induced changes in PC, focusing on the role of hypoxia-inducible factors (HIFs). Among the myriad of molecules affected by hypoxia, microRNA-210 (miR-210) emerges as a central player. It is highly responsive to hypoxia and regulated by HIF-dependent and HIF-independent pathways. miR-210 influences critical cellular processes, including angiogenesis, metastasis, and apoptosis, all of which contribute to PC progression and resistance to treatment. Understanding these pathways provides insights into potential therapeutic targets. Furthermore, investigating the role of miR-210 and its regulation in hypoxia sheds light on the potential development of early diagnostic strategies, which are urgently needed to improve outcomes for PC patients. This review delves into the complexities of PC and introduces the roles of hypoxia and miR-210 in the progression of PC.
Collapse
Affiliation(s)
| | | | - Pinar Uysal-Onganer
- Cancer Mechanisms and Biomarkers Research Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK; (M.L.); (M.M.)
| |
Collapse
|
6
|
Gao Q, An K, Lv Z, Wang Y, Ding C, Huang W. E2F3 accelerates the stemness of colon cancer cells by activating the STAT3 pathway. Front Oncol 2023; 13:1203712. [PMID: 37456248 PMCID: PMC10346838 DOI: 10.3389/fonc.2023.1203712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/07/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction Colon cancer is one of the most prevalent malignancies and causes of cancer-related deaths worldwide. Thus, further research is required to explicate the latent molecular mechanisms and look for novel biomarkers. E2F3 has been confirmed to be an oncogene in a variety of cancers. However, the particular regulation of E2F3 in colon cancer needs further investigation. Methods The self-renewal ability was detected through a sphere formation assay. The tumorigenic ability was measured through nude mice in vivo assay. The protein expression of genes was examined through a Western blot. The expression of E2F3 in tumor tissues was detected through an IHC assay. The resistance to cisplatin was assessed through the CCK-8 assay. The cell migration and invasion abilities were measured after upregulating or suppressing E2F3 through the Transwell assay. Results Results uncovered that E2F3 was upregulated in spheroid cells. In addition, E2F3 facilitates stemness in colon cancer. Moreover, E2F3 facilitated colon cancer cell migration and invasion. Finally, it was revealed that E2F3 affected the STAT3 pathway to modulate stemness in colon cancer. E2F3 served as a promoter regulator in colon cancer, aggravating tumorigenesis and stemness in colon cancer progression through the STAT3 pathway. Conclusion E2F3 may be a useful biomarker for anticancer treatment in colon cancer.
Collapse
|
7
|
Todosenko N, Khlusov I, Yurova K, Khaziakhmatova O, Litvinova L. Signal Pathways and microRNAs in Osteosarcoma Growth and the Dual Role of Mesenchymal Stem Cells in Oncogenesis. Int J Mol Sci 2023; 24:ijms24108993. [PMID: 37240338 DOI: 10.3390/ijms24108993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
The major challenges in Osteosarcoma (OS) therapy are its heterogeneity and drug resistance. The development of new therapeutic approaches to overcome the major growth mechanisms of OS is urgently needed. The search for specific molecular targets and promising innovative approaches in OS therapy, including drug delivery methods, is an urgent problem. Modern regenerative medicine focuses on harnessing the potential of mesenchymal stem cells (MSCs) because they have low immunogenicity. MSCs are important cells that have received considerable attention in cancer research. Currently, new cell-based methods for using MSCs in medicine are being actively investigated and tested, especially as carriers for chemotherapeutics, nanoparticles, and photosensitizers. However, despite the inexhaustible regenerative potential and known anticancer properties of MSCs, they may trigger the development and progression of bone tumors. A better understanding of the complex cellular and molecular mechanisms of OS pathogenesis is essential to identify novel molecular effectors involved in oncogenesis. The current review focuses on signaling pathways and miRNAs involved in the development of OS and describes the role of MSCs in oncogenesis and their potential for antitumor cell-based therapy.
Collapse
Affiliation(s)
- Natalia Todosenko
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
| | - Igor Khlusov
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
- Laboratory of Cellular and Microfluidic Technologies, Siberian State Medical University, 2, Moskovskii Trakt, 634050 Tomsk, Russia
| | - Kristina Yurova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
| | - Olga Khaziakhmatova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
| | - Larisa Litvinova
- Center for Immunology and Cellular Biotechnology, Immanuel Kant Baltic Federal University, 236001 Kaliningrad, Russia
- Laboratory of Cellular and Microfluidic Technologies, Siberian State Medical University, 2, Moskovskii Trakt, 634050 Tomsk, Russia
| |
Collapse
|
8
|
Role of E2F transcription factor in Oral cancer: Recent Insight and Advancements. Semin Cancer Biol 2023; 92:28-41. [PMID: 36924812 DOI: 10.1016/j.semcancer.2023.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/16/2023]
Abstract
The family of mammalian E2F transcription factors (E2Fs) comprise of 8 members (E2F1-E2F8) classified as activators (E2F1-E2F3) and repressors (E2F4-E2F8) primarily regulating the expression of several genes related to cell proliferation, apoptosis and differentiation, mainly in a cell cycle-dependent manner. E2F activity is frequently controlled via the retinoblastoma protein (pRb), cyclins, p53 and the ubiquitin-proteasome pathway. Additionally, genetic or epigenetic changes result in the deregulation of E2F family genes expression altering S phase entry and apoptosis, an important hallmark for the onset and development of cancer. Although studies reveal E2Fs to be involved in several human malignancies, the mechanisms underlying the role of E2Fs in oral cancer lies nascent and needs further investigations. This review focuses on the role of E2Fs in oral cancer and the etiological factors regulating E2Fs activity, which in turn transcriptionally control the expression of their target genes, thus contributing to cell proliferation, metastasis, and drug/therapy resistance. Further, we will discuss therapeutic strategies for E2Fs, which may prevent oral tumor growth, metastasis, and drug resistance.
Collapse
|
9
|
Guan X, Lan T, Wang Y, Cui Y, Duan J, Xu H. CircKRT14 upregulates E2F3 by interacting with miR-1256 to act as an oncogenic factor in esophageal cancer. Hum Exp Toxicol 2023; 42:9603271231155093. [PMID: 36738282 DOI: 10.1177/09603271231155093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND A growing number of studies have focused on the regulatory role of circular RNAs (circRNAs) in a variety of cancers. The purpose of this study was to investigate the effect of circRNA Keratin 14 (circKRT14) on the progression of esophageal cancer (EC). METHODS The levels of circKRT14, miR-1256 and E2F transcription factor 3 (E2F3) were analyzed by real-time quantitative polymerase chain reaction (qRT-PCR) and western blot. The circular structure of circKRT14 was confirmed by RNase R digestion assay. Cell apoptosis, migration and invasion were detected by flow cytometry and transwell assay. The protein levels of related factors were determined by western blot. The relationship between miR-1256 and circKRT14 or E2F3 was verified by dual-luciferase reporter assay. The in vivo function of circKRT14 was studied by xenograft tumor assay. RESULTS CircKRT14 was significantly increased in EC tissues and cells. CircKRT14 silencing inhibited EC cell proliferation, migration, and invasion, but promoted EC cell apoptosis in vitro. CircKRT1 acted as a sponge for miR-1256 in EC, and in-miR-1256 abolished the inhibitory effect of circKRT14 suppression on EC cell progression. E2F3 was a target of miR-1256 and functioned as an oncogene in EC cells. MiR-1256 curbed EC progression by downregulating E2F3. CircKRT14 could affect E2F3 expression by targeting miR-1256. CircKRT14 regulated EC progression in vivo through miR-1256/E2F3 axis. CONCLUSIONS These results uncovered that circKRT14 up-regulated the expression of E2F3 and promoted the malignant development of EC through sponging miR-1256.
Collapse
Affiliation(s)
- Xingzhuo Guan
- Department of Gastroenterology, Affiliated Hospital of Beihua University, Jilin, China
| | - Tingzhu Lan
- Department of Gastroenterology, Affiliated Hospital of Beihua University, Jilin, China
| | - Yuanshi Wang
- Department of Gastroenterology, Affiliated Hospital of Beihua University, Jilin, China
| | - Yan Cui
- Department of Gastroenterology, Affiliated Hospital of Beihua University, Jilin, China
| | - Jinyu Duan
- Department of Gastroenterology, Affiliated Hospital of Beihua University, Jilin, China
| | - Hongjun Xu
- Department of Gastroenterology, 604073The People's Hospital of Suzhou New District, Suzhou, China
| |
Collapse
|
10
|
Identifying Tumor-Associated Genes from Bilayer Networks of DNA Methylation Sites and RNAs. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010076. [PMID: 36676027 PMCID: PMC9861397 DOI: 10.3390/life13010076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Network theory has attracted much attention from the biological community because of its high efficacy in identifying tumor-associated genes. However, most researchers have focused on single networks of single omics, which have less predictive power. With the available multiomics data, multilayer networks can now be used in molecular research. In this study, we achieved this with the construction of a bilayer network of DNA methylation sites and RNAs. We applied the network model to five types of tumor data to identify key genes associated with tumors. Compared with the single network, the proposed bilayer network resulted in more tumor-associated DNA methylation sites and genes, which we verified with prognostic and KEGG enrichment analyses.
Collapse
|
11
|
Ognibene M, Cangelosi D, Sorrentino S, Zanardi S, Zara F, Pezzolo A, Parodi S. E2F3 gene expression is a potential negative prognostic marker for localised and MYCN not-amplified neuroblastoma: Results of in silico analysis of 786 samples. Pediatr Blood Cancer 2022; 69:e29800. [PMID: 35652628 DOI: 10.1002/pbc.29800] [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: 01/07/2022] [Revised: 04/13/2022] [Accepted: 05/09/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Neuroblastoma (NB) is an enigmatic childhood malignancy characterised by a wide range of clinical behaviour. Many potential oncogenes for NB have recently been identified. Among them, E2 transcription factor 3 (E2F3) expression was associated with a poor survival in 134 stage 4S patients, but evidence for other stage groups remains poorly investigated. METHODS We have analysed the expression of E2F3 gene from a database of 786 NB samples. Overall and event-free survivals (EFS) were assessed by the Kaplan-Meier method, splitting the data on the median and tertile expression values. The Cox model was applied to control for the confounding by stage, age and MYCN amplification. Validation was performed by an in silico analysis of an independent cohort of 283 NB patients. Furthermore, an immunofluorescence analysis on 48 formalin-fixed, paraffin-embedded NB specimens was also performed. RESULTS E2F3 overexpression was associated with a poor survival (EFS = 84%, 95% CI: 79%-95%, for low expression levels; EFS = 62%, 95% CI: 56%-68% for middle levels; EFS = 30%, 95% CI: 24%-36%, for high levels, p < .001). This association was confirmed in multivariable analysis and was more evident in patients with MYCN not-amplified and localised stages. Immunofluorescence results and the validation on an independent cohort of NB primary samples confirmed these findings. CONCLUSIONS E2F3 is a new potential prognostic marker in NB with favourable characteristics at diagnosis. Further studies are needed to elucidate the potential role of E2F3 in NB oncogenesis and progression, in order to identify new targets for therapeutic interventions.
Collapse
Affiliation(s)
- Marzia Ognibene
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Davide Cangelosi
- Unità di Bioinformatica Clinica, Direzione Scientifica, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Stefania Sorrentino
- U.O.C. Divisione di Oncologia, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Sabrina Zanardi
- U.O.S.I.D. Epidemiologia e Biostatistica, Direzione Scientifica, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Federico Zara
- U.O.C. Genetica Medica, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | | | - Stefano Parodi
- Direzione Scientifica, IRCCS Istituto Giannina Gaslini, Genova, Italy
| |
Collapse
|
12
|
LncRNA SPINT1-AS1/miR-433-3p/E2F3 positive feedback loop promotes the KRAS-mutant colorectal cancer cell proliferation, migration and invasion. Pathol Res Pract 2022; 239:154064. [DOI: 10.1016/j.prp.2022.154064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 07/27/2022] [Accepted: 08/07/2022] [Indexed: 11/22/2022]
|
13
|
Luo C, Zhao X, Wang Y, Li Y, Wang T, Li S. A novel circ_0000654/miR-375/E2F3 ceRNA network in esophageal squamous cell carcinoma. Thorac Cancer 2022; 13:2223-2234. [PMID: 35790503 PMCID: PMC9346169 DOI: 10.1111/1759-7714.14550] [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: 04/20/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 11/29/2022] Open
Abstract
Background The competing endogenous RNA (ceRNA) activity of circular RNAs (circRNAs) has been implicated in the pathogenesis of cancers, including esophageal squamous cell carcinoma (ESCC). Here, we identified the ceRNA mechanism of circ_0000654 regulation in ESCC. Methods The levels of circ_0000654, E2F transcription factor 3 (E2F3), and microRNA (miR)‐375 were gauged by quantitative real‐time PCR (qRT‐PCR) and western blot. Cell proliferation was assessed by 3‐(4,5‐dimethylthiazol‐2‐yl)‐5‐(3‐carboxymethoxyphenyl)‐2‐(4‐sulfophenyl)‐2H‐tetrazolium (MTS) and 5‐ethynyl‐2′‐deoxyuridine (EdU) assays. Cell apoptosis was detected by flow cytometry. Cell colony formation was tested by colony formation assay. Dual‐luciferase reporter, RNA pull‐down and RNA immunoprecipitation (RIP) assays were performed to confirm the direct relationship between miR‐375 and circ_0000654 or E2F3. Xenograft model assays were used to evaluate the effect of circ_0000654 in vivo. Results Circ_0000654 and E2F3 were upregulated in ESCC. Circ_0000654 depletion enhanced cell apoptosis and hindered cell proliferation and glycolysis in vitro, as well as weakened tumor growth in vivo. Increased expression of E2F3 counteracted the effects of circ_0000654 depletion. Mechanistically, E2F3 was a target of miR‐375, and circ_0000654 modulated E2F3 expression through sequestering miR‐375. Furthermore, miR‐375 upregulation phenocopied circ_0000654 knockdown in inhibiting ESCC progression. Conclusion Our findings identify a new circ_0000654/miR‐375/E2F3 ceRNA crosstalk for the oncogenic role of circ_0000654 in ESCC and establish a notion that targeting circ_0000654 and its pathways may have the potential to improve ESCC outcome.
Collapse
Affiliation(s)
- Chunyu Luo
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| | - Xiaowei Zhao
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| | - Yuan Wang
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| | - Yanqiu Li
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| | - Tuo Wang
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| | - Shumin Li
- Department of Clinical Laboratory, Affiliated Hospital of Chifeng University, Chifeng, China
| |
Collapse
|
14
|
Burgos CF, Cikutovic R, Alarcón M. MicroRNA expression in male infertility. Reprod Fertil Dev 2022; 34:805-818. [PMID: 35760398 DOI: 10.1071/rd21131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 05/25/2022] [Indexed: 11/23/2022] Open
Abstract
Male infertility is a multifactorial disorder that involves different physiopathological mechanisms and multiple genes. In this sense, we analyse the role of miRNAs in this pathology. Gene expression analysis can provide relevant information to detect biomarkers, signalling pathways, pathologic mechanisms, and potential therapeutic targets for the disease. In this review, we describe four miRNA microarrays related to patients who present infertility diseases, including azoospermia, asthenozoospermia, and oligoasthenozoospermic. We selected 13 miRNAs with altered expressions in testis tissue (hsa-miR-122-5p, hsa-miR-145-5p, hsa-miR-16-5p, hsa-miR-193a-3p, hsa-miR-19a-3p, hsa-miR-23a-3p, hsa-miR-30b-5p, hsa-miR-34b-5p, hsa-miR-34c-5p, hsa-miR-374b-5p, hsa-miR-449a, hsa-miR-574-3p and hsa-miR-92a-3p), and systematically examine the mechanisms of four relevant miRNAs (hsa-miR-16-5p, hsa-miR-19a-3p, hsa-miR-92a-3p and hsa-miR-30b-5p) which we found that regulated a large number of proteins. An interaction network was generated, and its connections allowed us to identify signalling pathways and interactions between proteins associated with male infertility. In this way, we confirm that the most affected and relevant pathway is the PI3K-Akt signalling.
Collapse
Affiliation(s)
- C F Burgos
- Department of Physiology, Faculty of Biological Sciences, Universidad de Concepción, Concepcion, Chile
| | - R Cikutovic
- Universidad de Talca, Talca, 360000 Maule, Chile
| | - M Alarcón
- Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad de Talca, Talca, Chile
| |
Collapse
|
15
|
Akao Y, Terazawa R, Sugito N, Heishima K, Morikawa K, Ito Y, Narui R, Hamaguchi R, Nobukawa T. Understanding of cell death induced by the constituents of Taxus yunnanensis wood. Sci Rep 2022; 12:6282. [PMID: 35428370 PMCID: PMC9012736 DOI: 10.1038/s41598-022-09655-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/21/2022] [Indexed: 11/09/2022] Open
Abstract
The ethanol extract from the wood of Taxus Yunnanensis (TY) induced apoptosis in all cancer cell lines tested, which was mainly due to activation of an extrinsic pathway in human colon cancer DLD-1 cells. The extrinsic pathway was activated by the upregulation of the expression levels of Fas and TRAIL/DR5, which led to the activation of caspase-8. Of note, the machinery of this increase in expression was promoted by the upregulation of MIR32a expression, which silenced MIR34a-targeting E2F3 transcription factor. Furthermore, ectopic expression of MIR32a or siR-E2F3 silencing E2F3 increased Fas and TRAIL/DR5 expression. Thus, the extract activated the extrinsic pathway through the MIR34a/E2F3 axis, resulting in the autocrine and paracrine release of TRAIL, and upregulated expression of death receptors Fas and DR5 in the treated DLD-1 cells, which were functionally validated by Fas immunocytochemistry, and using anti-Fas and anti-TRAIL antibodies, respectively. In vivo, TY showed significant anti-tumor effects on xenografted and syngeneic model mice. The extract may also aid in chemoprevention by selectively making marked tumor cells susceptible to the tumor immunosurveillance system.
Collapse
Affiliation(s)
- Yukihiro Akao
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan.
| | - Riyako Terazawa
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Nobuhiko Sugito
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Kazuki Heishima
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Kohei Morikawa
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - Yuko Ito
- Department of General and Gastroenterological Surgery, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Ryoko Narui
- Karasuma Wada Clinic, Nakagyo-ku, Kyoto, 604-0845, Japan
| | - Reo Hamaguchi
- Karasuma Wada Clinic, Nakagyo-ku, Kyoto, 604-0845, Japan
| | | |
Collapse
|
16
|
Huang Z, Wang C, Zhao X. circFIG 4 drives the carcinogenesis and metastasis of esophagus cancer via the miR-493-5p/E2F3 axis. Thorac Cancer 2022; 13:783-794. [PMID: 35083866 PMCID: PMC8930455 DOI: 10.1111/1759-7714.14321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/31/2021] [Accepted: 01/03/2022] [Indexed: 01/02/2023] Open
Abstract
Background Esophageal cancer (EC) is a highly malignant tumor of the digestive tract. Circular RNAs (circRNAs) have been verified to play a regulatory role in the occurrence and progression of different cancers, including EC. This research aimed to investigate the role and molecular mechanism of circFIG 4 in EC progression. Methods The analyses of circFIG 4, miR‐493‐5p, and neuro‐oncological ventral antigen 2 levels were administrated by quantitative real‐time polymerase chain reaction. The characteristics of circFIG 4 were determined by Ribonuclease R assay and Actinomycin D assay. Cell proliferation was assessed via colony formation assay and 5‐ethynyl‐2′‐deoxyuridine incorporation assay. Cell cycle distribution and apoptosis were evaluated by flow cytometry. Western blot was performed to assess protein expression. The targeted interaction among circFIG 4, miR‐493‐5p, and E2F transcription factor 3 (E2F3) were validated using dual‐luciferase reporter or RNA immunoprecipitation assays. Results circFIG 4 was overtly upregulated in EC and was relatively stable in EC cells. circFIG 4 knockdown impeded proliferation, migration, and invasion and expedited apoptosis in EC cells. circFIG 4 served as a miR‐493‐5p sponge to act in the development of EC. Furthermore, circFIG 4 modulated EC progression via targeting miR‐493‐5p and miR‐493‐5p suppressed EC progression via targeting E2F3. circFIG 4 modulated E2F3 expression through acting as a sponge of miR‐493‐5p. Moreover, circFIG 4 knockdown inhibited EC tumorigenesis by targeting miR‐493‐5p/E2F3 axis tumor growth in vivo. Conclusion circFIG 4 silence mitigated EC malignant progression at least partly by mediating the miR‐493‐5p/E2F3 pathway, highlighting new biomarkers and therapeutic targets for EC treatment.
Collapse
Affiliation(s)
- Zhen Huang
- Department of Thoracic Surgery, Zhangzhou Affiliated Hospital of Fujian Medical University, Zhangzhou, China
| | - Chunyue Wang
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, School of Clinical Medicine, Fujian Medical University, Xiamen, China
| | - Xin Zhao
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University, School of Clinical Medicine, Fujian Medical University, Xiamen, China
| |
Collapse
|
17
|
Hamidi AA, Zangoue M, Kashani D, Zangouei AS, Rahimi HR, Abbaszadegan MR, Moghbeli M. MicroRNA-217: a therapeutic and diagnostic tumor marker. Expert Rev Mol Diagn 2021; 22:61-76. [PMID: 34883033 DOI: 10.1080/14737159.2022.2017284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Cancer as one of the most common causes of death has always been one of the major health challenges globally. Since, the identification of tumors in the early tumor stages can significantly reduce mortality rates; it is required to introduce novel early detection tumor markers. MicroRNAs (miRNAs) have pivotal roles in regulation of cell proliferation, migration, apoptosis, and tumor progression. Moreover, due to the higher stability of miRNAs than mRNAs in body fluids, they can be considered as non-invasive diagnostic or prognostic markers in cancer patients. AREAS COVERED In the present review we have summarized the role of miR-217 during tumor progressions. The miR-217 functions were categorized based on its target molecular mechanisms and signaling pathways. EXPERT OPINION It was observed that miR-217 mainly exerts its function by regulation of the transcription factors during tumor progressions. The WNT, MAPK, and PI3K/AKT signaling pathways were also important molecular targets of miR-217 in different cancers. The present review clarifies the molecular biology of miR-217 and paves the way of introducing miR-217 as a non-invasive diagnostic marker and therapeutic target in cancer therapy.
Collapse
Affiliation(s)
- Amir Abbas Hamidi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Zangoue
- Department of Anesthesiology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Daniel Kashani
- Department of Internal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Rahimi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| |
Collapse
|
18
|
Xiao Y, Xia Y, Wang Y, Xue C. Pathogenic roles of long noncoding RNAs in melanoma: Implications in diagnosis and therapies. Genes Dis 2021; 10:113-125. [PMID: 37013035 PMCID: PMC10066279 DOI: 10.1016/j.gendis.2021.08.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 07/30/2021] [Accepted: 08/20/2021] [Indexed: 12/12/2022] Open
Abstract
Melanoma is one of the most dangerous types of cutaneous neoplasms, which are pigment-producing cells of neuroectodermal origin found all over the body. A great deal of research is focused on the mechanisms of melanoma to promote better diagnostic and treatment options for melanoma in its advanced stages. The progression of melanoma involves alteration in different levels of gene expression. With the successful implementation of next-generation sequencing technology, an increasing number of long noncoding RNAs (lncRNAs) sequences have been discovered, and a significant number of them have phenotypic effects in both in vitro and in vivo studies, implying that they play an important role in the occurrence and progression of human cancers, particularly melanoma. A number of evidence indicated that lncRNAs are important regulators in tumor cell proliferation, invasion, apoptosis, immune escape, energy metabolism, drug resistance, epigenetic regulation. To better understand the role of lncRNAs in melanoma tumorigenesis, we categorize melanoma-associated lncRNAs according to their cellular functions and associations with gene expression and signaling pathways in this review. Based on the mechanisms of lncRNA, we discuss the possibility of lncRNA-target treatments, and the application of liquid biopsies to detect lncRNAs in melanoma diagnosis and prognosis.
Collapse
|
19
|
Xu Z, Qu H, Ren Y, Gong Z, Ri HJ, Chen X. An Update on the Potential Roles of E2F Family Members in Colorectal Cancer. Cancer Manag Res 2021; 13:5509-5521. [PMID: 34276228 PMCID: PMC8277564 DOI: 10.2147/cmar.s320193] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/01/2021] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a major health burden worldwide, and thus, optimised diagnosis and treatments are imperative. E2F transcription factors (E2Fs) are a family of transcription factors consisting of eight genes, contributing to the oncogenesis and development of CRC. Importantly, E2Fs control not only the cell cycle but also apoptosis, senescence, DNA damage response, and drug resistance by interacting with multiple signaling pathways. However, the specific functions and intricate machinery of these eight E2Fs in human CRC remain unclear in many respects. Evidence on E2Fs and CRC has been scattered on the related regulatory genes, microRNAs (miRNAs), and competing endogenous RNAs (ceRNAs). Accordingly, some drugs targeting E2Fs have been transferred from preclinical to clinical application. Herein, we have systemically reviewed the current literature on the roles of various E2Fs in CRC with the purpose of providing possible clinical implications for patient diagnosis and prognosis and future treatment strategy design, thereby furthering the understanding of the E2Fs.
Collapse
Affiliation(s)
- ZhaoHui Xu
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - Hui Qu
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - YanYing Ren
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - ZeZhong Gong
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - Hyok Ju Ri
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - Xin Chen
- Department of Hernia and Colorectal Surgery, The Second Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| |
Collapse
|
20
|
Liu Y, Chen G, Wang B, Wu H, Zhang Y, Ye H. Silencing circRNA protein kinase C iota (circ-PRKCI) suppresses cell progression and glycolysis of human papillary thyroid cancer through circ-PRKCI/miR-335/E2F3 ceRNA axis. Endocr J 2021; 68:713-727. [PMID: 33716239 DOI: 10.1507/endocrj.ej20-0726] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The circular RNA PRKCI (circ-PRKCI; ID: hsa_circ_0122683) is highly expressed in human papillary thyroid cancer (PTC) tumors according to GSE93522 dataset. However, its role in PTC tumorigenesis remains to be documented. Here, quantitative real-time PCR showed that expression of circ-PRKCI was abnormally upregulated in human PTC patients' tumors and cells, and higher circ-PRKCI might predict lymph node metastasis and recurrence. Functionally, cell behaviors were measured by 3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide assay, colony formation assay, fluorescence-activated cell sorting method, scratch wound assay, transwell assay, western blotting, and assay kits for glucose and lactate. As a result, circ-PRKCI knockdown could suppress cell cycle progression of PTC cells and restrain the abilities of cell proliferation, colony formation, wound closure, invasion, glucose consumption and lactate production, accompanied with decreased levels of matrix metalloproteinase-2 (MMP2), MMP9 and Snail. Moreover, above-mentioned inhibition could be imitated by overexpressing microRNA-335-5p (miR-335). Molecularly, circ-PRKCI functioned as a sponge for miR-335 and miR-335 could further targeted E2F transcription factor-3 (E2F3), according to dual-luciferase reporter assay and RNA immunoprecipitation. However, downregulating miR-335 diminished the effects of circ-PRKCI role on cell growth, metastasis and glycolysis in PTC cells; besides, there was a counteractive effect between miR-335 upregulation and E2F3 upregulation in PTC cells as well. Furthermore, xenograft experiment revealed that silencing circ-PRKCI could retard tumor growth of PTC cells in vivo. Collectively, circ-PRKCI exerted oncogenic role in PTC by antagonizing cell progression and glycolysis via regulating miR-335/E2F3 axis, suggesting circ-PRKCI was a potential biomarker and target for PTC.
Collapse
Affiliation(s)
- Yan Liu
- Department of General Surgery, Guizhou Provincial People's Hospital, Guiyang City, Guizhou Province, China
| | - Gen Chen
- Department of General Surgery, Guizhou Provincial People's Hospital, Guiyang City, Guizhou Province, China
| | - Bo Wang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang City, Guizhou Province, China
| | - Hanjin Wu
- Department of General Surgery, The Affiliated Hospital Of Guizhou Medical University, Guiyang City, Guizhou Province, China
| | - Yi Zhang
- Department of General Surgery, Guizhou Provincial People's Hospital, Guiyang City, Guizhou Province, China
| | - Hui Ye
- Department of General Surgery, The Affiliated Hospital Of Guizhou Medical University, Guiyang City, Guizhou Province, China
| |
Collapse
|
21
|
Xu X, Gao R, Li S, Li N, Jiang K, Sun X, Zhang J. Circular RNA circZNF292 regulates H 2 O 2 -induced injury in human lens epithelial HLE-B3 cells depending on the regulation of the miR-222-3p/E2F3 axis. Cell Biol Int 2021; 45:1757-1767. [PMID: 33851769 DOI: 10.1002/cbin.11615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/22/2021] [Accepted: 04/12/2021] [Indexed: 12/18/2022]
Abstract
Circular RNAs (circRNAs) play important roles in the pathogenesis of age-related cataract (ARC). CircRNA zinc finger protein 292 (circZNF292, hsa_circ_0004058) is downregulated in ARC lens capsules. Here, we focused on its precise roles in oxidative stress underlying the pathogenesis of ARC. CircZNF292, microRNA (miR)-222-3p, and E2F transcription factor 3 (E2F3) were quantified by quantitative real-time polymerase chain reaction or western blot. Cell viability was assessed by the cell counting kit-8 assay. Cell cycle distribution and apoptosis were detected by flow cytometry. The activities of superoxide dismutase, catalase, and malondialdehyde were measured using the corresponding assay kit. Targeted correlations among circZNF292, miR-222-3p, and E2F3 were verified by the dual-luciferase reporter, RNA immunoprecipitation and RNA pull-down assays. Our data showed that circZNF292 was downregulated in ARC tissues and H2 O2 -treated human lens epithelial B3 (HLE-B3) cells. Increased expression of circZNF292 alleviated H2 O2 -induced cell viability suppression, apoptosis promotion, and oxidative stress enhancement. Mechanistically, circZNF292 directly targeted miR-222-3p, and circZNF292 regulated E2F3 expression through miR-222-3p. MiR-222-3p was a functional mediator of circZNF292 in modulating H2 O2 -induced injury in HLE-B3 cells. Furthermore, reduced level of miR-222-3p ameliorated H2 O2 -induced HLE-B3 cell damage by upregulating E2F3. Our present study demonstrated that increased expression of circZNF292 ameliorated H2 O2 -induced injury in HLE-B3 cells at least in part through the miR-222-3p/E2F3 axis, highlighting a novel insight into the involvement of circRNAs in the pathogenesis of ARC.
Collapse
Affiliation(s)
- Xinyan Xu
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Rongyu Gao
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Shuchan Li
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Nan Li
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Keke Jiang
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Xianyong Sun
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| | - Jie Zhang
- Department of Ophthalmology, Weifang Eye Hospital, Weifang, Shandong, China
| |
Collapse
|
22
|
Meng X, Deng Y, He S, Niu L, Zhu H. m 6A-Mediated Upregulation of LINC00857 Promotes Pancreatic Cancer Tumorigenesis by Regulating the miR-150-5p/E2F3 Axis. Front Oncol 2021; 11:629947. [PMID: 33680969 PMCID: PMC7930559 DOI: 10.3389/fonc.2021.629947] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/05/2021] [Indexed: 12/12/2022] Open
Abstract
The mortality and morbidity rates of pancreatic cancer (PC) have been increasing over the past two decades. Recent evidence indicates that long non-coding RNAs (lncRNAs) are usually dysregulated in the tumorigenesis and progression of PC. In the present study, we showed that the expression of LINC00857 was upregulated in PC and associated with poor prognosis based on the Gene Expression Profiling Interactive Analysis (GEPIA) database and validated in our PC tissues and cell lines. N6-Methyladenosine (m6A) was highly enriched within LINC00857 and enhanced its RNA stability. Knockdown of LINC00857 remarkably inhibited the proliferation and promoted the apoptosis of PC cells. Then, by using bioinformation analysis and verified experiments, we identified that LINC00857 functioned as a competing endogenous RNA (ceRNA) for sponging miR-150-5p, leading to the upregulation of its target E2F3 in PC cells. Taken above, our study revealed a potential ceRNA regulatory pathway in which LINC00857 modulates E2F3 expression by binding to miR-150-5p, ultimately promoting tumorigenesis in PC. LINC00857/miR-150-5p/E2F3 regulatory axis may be taken as an alternative therapeutic target for treating PC.
Collapse
Affiliation(s)
- Xiangrui Meng
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, China.,Department of Gastroenterology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yanyao Deng
- Department of Neurology, The First Hospital of Changsha, Changsha, China
| | - Shuhan He
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Li Niu
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hongwei Zhu
- Department of Hepatopancreatobiliary Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
23
|
Qu J, Yuan C, Jia Q, Sun M, Jiang M, Zuo F. CircularRNA_0119872 regulates the microRNA-582-3p/E2F transcription factor 3 pathway to promote the progression of malignant melanoma. Clinics (Sao Paulo) 2021; 76:e3036. [PMID: 34644734 PMCID: PMC8478137 DOI: 10.6061/clinics/2021/e3036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/15/2021] [Indexed: 01/10/2023] Open
Abstract
OBJECTIVES Malignant melanoma (MM) is an invasive tumor that poses a threat to patient health. Circular RNAs (circRNAs) are important regulators of MM carcinogenesis. In this study, we investigated the expression characteristics and biological functions of, and mechanism underlying, circ_0119872 expression in MM. METHODS Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was employed to examine the circ_0119872, microRNA (miR)-582-3p, and E2F transcription factor 3 (E2F3) mRNA expression levels in MM tissues and cell lines. Western blotting was performed to quantify E2F3 protein expression. MM cells with circ_0119872 knockdown were established, and cell counting kit 8 (CCK-8) and transwell assays were utilized to examine the function of circ_0119872 and its effects on the malignant characteristics of MM cells. The MiRDB and TargetScan databases were used to predict the target genes of miR-582-3p. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis was used to explore the biological functions of the target genes of miR-582-3p. Additionally, a dual-luciferase reporter gene experiment was performed to verify the targeting relationship between circ_0119872 and miR-582-3p as well as that between miR-582-3p and E2F3. RESULTS Circ_0119872 was remarkably upregulated in MM tissues and cell lines. Circ_0119872 knockdown suppressed the cell proliferation and metastasis In addition, miR-582-3p was identified as a downstream target of circ_0119872. The target genes of miR-193a-3p are involved in melanogenesis and cancer-related signaling pathways. Mechanistically, circ_0119872 facilitated MM progression by adsorbing miR-582-3p and upregulating E2F3 expression. CONCLUSION Circ_0119872 is an oncogenic circRNA that participates in the promotion of MM progression by regulating the miR-582-3p/E2F3 axis.
Collapse
Affiliation(s)
- Jinlong Qu
- Department of Dermatology, Linyi Central Hospital, Linyi 276400, Shandong, China
| | - Chunying Yuan
- Department of Dermatology, Dongying People's Hospital, Dongying 257091, Shandong, China
| | - Qi Jia
- Department of Dermatology, Haiyang People’s Hospital, Haiyang 265100, Shandong, China
| | - Mengwei Sun
- Department of Dermatology, Haiyang People’s Hospital, Haiyang 265100, Shandong, China
| | - Min Jiang
- Department of Dermatology, Haiyang People’s Hospital, Haiyang 265100, Shandong, China
| | - Fuguang Zuo
- Department of Dermatology, Haiyang People’s Hospital, Haiyang 265100, Shandong, China
- Corresponding author. E-mail:
| |
Collapse
|
24
|
Li W, Yan P, Meng X, Zhang J, Yang Y. The microRNA cluster miR-214/miR-3120 prevents tumor cell switching from an epithelial to a mesenchymal-like phenotype and inhibits autophagy in gallbladder cancer. Cell Signal 2020; 80:109887. [PMID: 33340658 DOI: 10.1016/j.cellsig.2020.109887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/29/2022]
Abstract
Tumor cells switch from an epithelial to a mesenchymal-like phenotype, which represents a key hallmark of human cancer metastasis, including gallbladder cancer (GBC). A large set of microRNAs (miRNAs/miRs) have been studied to elucidate their functions in initiating or inhibiting this phenotypic switching in GBC cells. In this paper, we attempted to identify the expression pattern of the miR-214/-3120 cluster and its mode of action in the context of GBC, with a specific focus being placed on their effects on EMT and autophagy in GBC cells. Human GBC cells GBC-SD were assayed for their migration, invasion, and autophagy using the Transwell chamber system, MDC staining, and transmission electron microscopy. The tumorigenicity and metastatic behavior of GBC-SD cells were tested in nude mice. The expression of EMT- and autophagy-specific markers (E-cadherin, N-cadherin, vimentin, ATG5, LC3II/LC3I, and Beclin1) was analyzed in cultured GBC-SD cells and in human GBC-SD xenografts. The E2F3 luciferase reporter activity in the presence of miR-214/-3120 was evaluated by a dual luciferase assay. The miR-214/-3120 was downregulated in GBC. Exogenous miR-214/-3120 inhibited the phenotypic switching of GBC cells from epithelial to mesenchymal, prevented autophagy, and suppressed the tumorigenicity and metastatic behavior of GBC-SD cells in vitro and in vivo. E2F3 was demonstrated to be the target gene of miR-214/-3120, and its knockdown in part mimicked the effect of miR-214/-3120 on the EMT, autophagy, tumorigenicity, and metastatic behavior of GBC-SD cells. These results demonstrated that the miR-214/-3120 cluster blocks the process of EMT and autophagy to limit GBC metastasis by repressing E2F3 expression.
Collapse
Affiliation(s)
- Wujun Li
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, PR China; Department of General Surgery, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, PR China
| | - Pu Yan
- Department of General Surgery, The First Affiliated Hospital of Xi'an Medical University, Xi'an 710077, Shaanxi Province, PR China
| | - Xiaofen Meng
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, PR China
| | - Jinpei Zhang
- Department of Encephalopathy, The Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang 712000, Shaanxi Province, PR China.
| | - Yi Yang
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi Province, PR China.
| |
Collapse
|
25
|
Hu YM, Lou XL, Liu BZ, Sun L, Wan S, Wu L, Zhao X, Zhou Q, Sun MM, Tao K, Zhang YS, Wang SL. TGF-β1-regulated miR-3691-3p targets E2F3 and PRDM1 to inhibit prostate cancer progression. Asian J Androl 2020; 23:188-196. [PMID: 33159025 PMCID: PMC7991816 DOI: 10.4103/aja.aja_60_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Transforming growth factor-β1 (TGF-β1) acts as a tumor promoter in advanced prostate cancer (PCa). We speculated that microRNAs (miRNAs) that are inhibited by TGF-β1 might exert anti-tumor effects. To assess this, we identified several miRNAs downregulated by TGF-β1 in PCa cell lines and selected miR-3691-3p for detailed analysis as a candidate anti-oncogene miRNA. miR-3691-3p was expressed at significantly lower levels in human PCa tissue compared with paired benign prostatic hyperplasia tissue, and its expression level correlated inversely with aggressive clinical pathological features. Overexpression of miR-3691-3p in PCa cell lines inhibited proliferation, migration, and invasion, and promoted apoptosis. The miR-3691-3p target genes E2F transcription factor 3 (E2F3) and PR domain containing 1, with ZNF domain (PRDM1) were upregulated in miR-3691-3p-overexpressing PCa cells, and silencing of E2F3 or PRDM1 suppressed PCa cell proliferation, migration, and invasion. Treatment of mice bearing PCa xenografts with a miR-3691-3p agomir inhibited tumor growth and promoted tumor cell apoptosis. Consistent with the negative regulation of E2F3 and PRDM1 by miR-3691-3p, both proteins were overexpressed in clinical PCa specimens compared with noncancerous prostate tissue. Our results indicate that TGF-β1-regulated miR-3691-3p acts as an anti-oncogene in PCa by downregulating E2F3 and PRDM1. These results provide novel insights into the mechanisms by which TGF-β1 contributes to the progression of PCa.
Collapse
Affiliation(s)
- Yue-Mei Hu
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China,Department of Pathology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China,Collaborative Innovation Center of Clinical Immunology between Soochow University and Sihong People's Hospital, Sihong 223900, China
| | - Xiao-Li Lou
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China,Collaborative Innovation Center of Clinical Immunology between Soochow University and Sihong People's Hospital, Sihong 223900, China
| | - Bao-Zhu Liu
- Collaborative Innovation Center of Clinical Immunology between Soochow University and Sihong People's Hospital, Sihong 223900, China,Department of Pathology, Sihong People's Hospital, Sihong 223900, China
| | - Li Sun
- Laboratory Animal Research Center, Soochow University School of Medicine, Suzhou 215123, China
| | - Shan Wan
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Lei Wu
- Laboratory Animal Research Center, Soochow University School of Medicine, Suzhou 215123, China
| | - Xin Zhao
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China
| | - Qing Zhou
- Department of Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Mao-Min Sun
- Laboratory Animal Research Center, Soochow University School of Medicine, Suzhou 215123, China
| | - Kun Tao
- Department of Pathology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - Yong-Sheng Zhang
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, China,
Correspondence: Dr. SL Wang () or Dr. YS Zhang ()
| | - Shou-Li Wang
- Department of Pathology, School of Biology and Basic Medical Sciences, Soochow University, Suzhou 215123, China,Suzhou Key Laboratory of Tumor Microenvironment and Pathology, Soochow University, Suzhou 215006, China,
Correspondence: Dr. SL Wang () or Dr. YS Zhang ()
| |
Collapse
|
26
|
Wadaa Allah AM, Abdel Hamid FF, Soliman AF, Ibrahim N, Malash I, Abdelgawad IA. Evaluation of E2F3 and survivin expression in peripheral blood as potential diagnostic markers of prostate cancer. TURKISH JOURNAL OF BIOCHEMISTRY 2020; 45:525-532. [DOI: 10.1515/tjb-2019-0323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Abstract
Background
Prostate cancer (PC) incidence has risen globally. As there are no current independent biomarkers with high diagnostic efficiency to detect PC, this study was performed to investigate the relative gene expression levels of E2F3 and survivin in the whole blood of PC, benign prostate hyperplasia (BPH), and normal control individuals and to explore their diagnostic value.
Material and methods
Participants of the study were divided into three groups; normal control group (n=25), BPH patients (n=25), and PC patients (n=75). The E2F3 and survivin gene expression levels were assessed using real-time qPCR in addition to the measurement of free and total levels of prostate-specific antigen (PSA) using electrochemiluminescence assays.
Results
Survivin relative gene expression was over-expressed in PC and BPH patients compared to the normal control group, whereas, E2F3 did not differ significantly among the studied groups. Compared to PSA, E2F3 and survivin mRNA expression levels had lower diagnostic efficacy to differentiate PC from normal and BPH individuals with an area under curve (AUC) of 0.471 and 0.727, respectively. Further, survivin expression level was associated with increased the risk of PC.
Conclusion
Survivin and E2F3 relative expression levels in peripheral blood had low diagnostic performance to detect PC and individuals with high survivin expression levels may have higher risk to develop PC.
Collapse
Affiliation(s)
- Ahmed M. Wadaa Allah
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo , Egypt
| | - Fatma F. Abdel Hamid
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo , Egypt
| | - Ahmed F. Soliman
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo , Egypt
| | - Noha Ibrahim
- Department of Clinical and Chemical Pathology, National Cancer Institute, Cairo University , Cairo , Egypt
| | - Ibrahim Malash
- Medical Oncology Department, National Cancer Institute, Cairo University , Cairo , Egypt
| | - Iman A. Abdelgawad
- Department of Clinical and Chemical Pathology, National Cancer Institute, Cairo University , Cairo , Egypt
| |
Collapse
|
27
|
Tan PY, Wen LJ, Li HN, Chai SW. MiR-548c-3p inhibits the proliferation, migration and invasion of human breast cancer cell by targeting E2F3. Cytotechnology 2020; 72:751-761. [PMID: 32902720 DOI: 10.1007/s10616-020-00418-3] [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] [Received: 03/25/2020] [Accepted: 08/29/2020] [Indexed: 12/12/2022] Open
Abstract
MiR-548 has been reported to be involved in a variety of tumor processes, but its function in breast cancer remains unclear. In this study, we found that miR-548 was low expressed in breast cancer tissues and cells compared with normal control. We then examined whether up-regulation of miR-548 could improve the progression of breast cancer. Our results indicate that up-regulation of miR-548 significantly inhibits cell proliferation, migration andinvasion, and induces apoptosis in breast cancer cells. Further studies showed that miR-548 could specifically inhibit E2F3 expression. Moreover, rescue test showed that up-regulation of E2F2 could reverse the effect of miR-548 on proliferation, migration, invasion and apoptosis of breast cancer cells. In general, miR-548 could improve the progression of breast cancer. By targeting E2F2, which may make a potential target for the treatment of breast cancer.
Collapse
Affiliation(s)
- Pei-Yi Tan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Liu-Jing Wen
- National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, 300060, China
| | - Hua-Nan Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Shi-Wei Chai
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| |
Collapse
|
28
|
Dana PM, Taghavipour M, Mirzaei H, Yousefi B, Moazzami B, Chaichian S, Asemi Z. Circular RNA as a potential diagnostic and/or therapeutic target for endometriosis. Biomark Med 2020; 14:1277-1287. [PMID: 33021386 DOI: 10.2217/bmm-2020-0167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Endometriosis is a pathology form of endometrium that behaves in a similar way to malignancies, such as invasion and resistance to apoptosis. Circular RNAs (CircRNAs) are a class of noncoding RNAs that have several biological functions including, miRNA sponging, sequestering of proteins, enhancing parental gene expression and translation resulting in polypeptides. In this review, we highlighted the roles of circRNAs as potential diagnostic and therapeutic biomarkers in endometriosis. Moreover, we summarized the roles of circRNAs in the pathogenesis of endometriosis via different signaling pathways, such as the miRNA network and apoptosis.
Collapse
Affiliation(s)
- Parisa M Dana
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
| | - Mona Taghavipour
- Department of Gynecology & Obstetrics, Ramsar Campus, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
| | - Bahman Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahram Moazzami
- Pars Advanced & Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Shahla Chaichian
- Pars Advanced & Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry & Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, IR Iran
| |
Collapse
|
29
|
Li S, Zeng M, Yang L, Tan J, Yang J, Guan H, Kuang M, Li J. Hsa_circ_0008934 promotes the proliferation and migration of osteosarcoma cells by targeting miR-145-5p to enhance E2F3 expression. Int J Biochem Cell Biol 2020; 127:105826. [PMID: 32822848 DOI: 10.1016/j.biocel.2020.105826] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/04/2020] [Accepted: 08/13/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To investigate the role of hsa_circ_0008934 in osteosarcoma and the molecular mechanism involved in the regulation of the occurrence and development of osteosarcoma METHODS: Differentially expressed circRNAs in the osteosarcoma cell lines SaOS2 and MG63 and in the normal human osteoblast cell line hFOB1.19 were identified via next-generation RNA sequencing. The expression and circular morphology of hsa_circ_0008934 were analyzed via quantitative real-time polymerase chain reaction (qRT-PCR) and RT-PCR analysis, respectively. Proliferation, apoptosis, cell cycle progression, migration, and invasion of SaOS2 and MG63 cells with hsa_circ_0008934 silencing or overexpression were assessed using the MTS method, colony formation assay, flow cytometry, and the transwell system, respectively. The subcellular distribution of hsa_circ_0008934 was revealed via fluorescence in situ hybridization. The binding of hsa_circ_0008934 with microRNAs was confirmed using the dual-luciferase reporter assay. The oncogenic roles of hsa_circ_0008934 in osteosarcoma were determined using an in vivo tumorigenesis assay with nude mice. qRT-PCR, western blotting, TUNEL assay, and immunohistochemistry (IHC) were used to detect the tumorigenicity of hsa_circ_0008934 in osteosarcoma cells. RESULTS Many circRNAs were differentially expressed in SaOS2 and MG63 cells than in hFOB1.19 cells. Hsa_circ_0008934 expression was significantly elevated in SaOS2 and MG63 cells. Hsa_circ_0008934 silencing significantly reduced proliferation, enhanced apoptosis, blocked cell cycle progression, and impaired migration and invasion capacities of SaOS2 cells. Opposite cellular alterations were achieved by overexpressing hsa_circ_0008934 in MG63 cells. Hsa_circ_0008934 was mainly distributed in the cytosol and positively regulated E2F3 expression in osteosarcoma cells. In addition, it directly bound with miR-145-5p to repress E2F3 expression and enhanced the tumorigenesis of MG63 cells in nude mice. qRT-PCR revealed that the intracellular injection of hsa_circ_0008934 lentivirus resulted in hsa_circ_0008934 overexpression and miR-145-5p downregulation. Western blotting confirmed that E2F3 was upregulated. Moreover, the TUNEL assay showed that hsa_circ_0008934 overexpression inhibited the apoptosis of tumor cells. IHC detection revealed that the hsa_circ_0008934 overexpression could promote the expression of Ki67 and PCNA. CONCLUSION Elevated hsa_circ_0008934 expression promotes the proliferation and migration of osteosarcoma cells by sponging miR-145-5p to enhance E2F3 expression.
Collapse
Affiliation(s)
- Shiyuan Li
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China.
| | - Ming Zeng
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Lin Yang
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Jianshao Tan
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Jianqi Yang
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Hongye Guan
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Manyuan Kuang
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| | - Jiaying Li
- Department of Spinal Surgery, the First People's Hospital of Foshan, Foshan 528000, Guangdong, China
| |
Collapse
|
30
|
Chen H, Tan X, Ding Y. Knockdown SNHG20 Suppresses Nonsmall Cell Lung Cancer Development by Repressing Proliferation, Migration and Invasion, and Inducing Apoptosis by Regulating miR-2467-3p/E2F3. Cancer Biother Radiopharm 2020; 36:360-370. [PMID: 32456448 DOI: 10.1089/cbr.2019.3430] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Lung cancer was one of the most common malignant tumors worldwide. In China, lung cancer has become the leading reason of malignant tumors-related mortality in urban population, whereas nonsmall cell lung cancer (NSCLC) represented at least 80% of all lung cancers with poor 5-year survival rate. Long noncoding RNA (lncRNA) small nucleolar RNA host gene 20 (SNHG20) was reported to be associated with NSCLC, but the regulatory mechanisms of SNHG20 in NSCLC needed further investigation. Methods: The abundances of SNHG20 and E2F transcription factor 3 (E2F3) in NSCLC tissues and cells were measured with real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot assays. 3-(4, 5-Dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazol-3-ium bromide (MTT) was applied to detect cells proliferation, whereas flow cytometry analysis was used to monitor cell apoptosis. In addition, cells capabilities of migratory and invasion were assessed with transwell assay. The association among miR-2467-3p, SNHG20, and E2F3 was analyzed by dual-luciferase reporter assay. The related protein expression levels were determined by Western blot. Results: SNHG20 and E2F3 was upregulation in NSCLC tissues and cell lines. Mechanical experiment displayed that knockdown of SNHG20 or E2F3 silencing could inhibit proliferation, motility, and improve apoptosis in NSCLC cell lines. Restored expression of E2F3 could effectively reverse reduction of proliferation, motility, and promotion of apoptosis caused by SNHG20 silencing in NSCLC cells. Besides, SNHG20 activated protein kinase B (AKT) signaling pathway and increased E2F3 level in NSCLC cells through targeting miR-2467-3p. Conclusion: SNHG20 contributed to NSCLC development through mediating AKT signaling pathway and sponging miR-2467-3p to elevate E2F3 expression in NSCLC cells.
Collapse
Affiliation(s)
- Hang Chen
- Department of Thoracic Surgery, The First People's Hospital of Guiyang, Guiyang, China
| | - Xin Tan
- Department of Thoracic Surgery, The First People's Hospital of Guiyang, Guiyang, China
| | - Yi Ding
- Department of Thoracic Surgery, The First People's Hospital of Guiyang, Guiyang, China
| |
Collapse
|
31
|
Proto-oncogene Zbtb7a represses miR-125a-5p transcription in hepatocellular carcinoma cells. Mol Biol Rep 2020; 47:4875-4878. [PMID: 32410140 DOI: 10.1007/s11033-020-05512-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/08/2020] [Indexed: 02/07/2023]
Abstract
Zbtb7a is a transcription factor whose dysfunction is correlated to the development of several types of cancer, including hepatocellular carcinoma (HCC). It generally acts as a repressor of transcription downregulating the expression of several target genes including oncosuppressors ARF and Rb. In this study, Zbtb7a was found to suppress the expression of miR-125a, an oncosuppressive miRNA that is often downregulated in HCC. This effect is mediated by the binding of the transcription factor to a regulatory sequence in the promoter of the transcription unit of miR-125a located 14 bp upstream of the transcription start site. Consistent with this observation, the analysis of 370 HCC samples showed an upregulation of Zbtb7a compared to 50 normal liver tissues and a reverse correlation with miR-125a expression. These data suggest that miR-125a may support the oncogenic potential of Zbtb7a.
Collapse
|
32
|
Kooshkaki O, Rezaei Z, Rahmati M, Vahedi P, Derakhshani A, Brunetti O, Baghbanzadeh A, Mansoori B, Silvestris N, Baradaran B. MiR-144: A New Possible Therapeutic Target and Diagnostic/Prognostic Tool in Cancers. Int J Mol Sci 2020; 21:ijms21072578. [PMID: 32276343 PMCID: PMC7177921 DOI: 10.3390/ijms21072578] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/02/2020] [Accepted: 04/04/2020] [Indexed: 12/14/2022] Open
Abstract
MicroRNAs (miRNAs) are small and non-coding RNAs that display aberrant expression in the tissue and plasma of cancer patients when tested in comparison to healthy individuals. In past decades, research data proposed that miRNAs could be diagnostic and prognostic biomarkers in cancer patients. It has been confirmed that miRNAs can act either as oncogenes by silencing tumor inhibitors or as tumor suppressors by targeting oncoproteins. MiR-144s are located in the chromosomal region 17q11.2, which is subject to significant damage in many types of cancers. In this review, we assess the involvement of miR-144s in several cancer types by illustrating the possible target genes that are related to each cancer, and we also briefly describe the clinical applications of miR-144s as a diagnostic and prognostic tool in cancers.
Collapse
Affiliation(s)
- Omid Kooshkaki
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853577, Iran;
- Department of Immunology, Birjand University of Medical Sciences, Birjand 9717853577, Iran
| | - Zohre Rezaei
- Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand 9717853577, Iran;
- Department of Biology, University of Sistan and Baluchestan, Zahedan 9816745845, Iran
| | - Meysam Rahmati
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz 5166/15731, Iran;
| | - Parviz Vahedi
- Department of Anatomical Sciences, Maragheh University of Medical Sciences, Maragheh 5165665931, Iran;
| | - Afshin Derakhshani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665811, Iran; (A.D.); (A.B.)
| | - Oronzo Brunetti
- Medical Oncology Unit—IRCCS Istituto Tumori “Giovanni Paolo II” of Bari, 70124 Bari, Italy;
| | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665811, Iran; (A.D.); (A.B.)
| | - Behzad Mansoori
- Department of Cancer and Inflammation Research, Institute for Molecular Medicine, University of Southern Denmark, 5230 Odense, Denmark;
| | - Nicola Silvestris
- Medical Oncology Unit—IRCCS Istituto Tumori “Giovanni Paolo II” of Bari, 70124 Bari, Italy;
- Department of Biomedical Sciences and Human Oncology DIMO—University of Bari, 70124 Bari, Italy
- Correspondence: (N.S.); (B.B.); Tel.: +39-0805555419 (N.S.); +98-413-3371440 (B.B.)
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz 5165665811, Iran; (A.D.); (A.B.)
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz 5166614766, Iran
- Correspondence: (N.S.); (B.B.); Tel.: +39-0805555419 (N.S.); +98-413-3371440 (B.B.)
| |
Collapse
|
33
|
Xu T, Li HT, Wei J, Li M, Hsieh TC, Lu YT, Lakshminarasimhan R, Xu R, Hodara E, Morrison G, Gujar H, Rhie SK, Siegmund K, Liang G, Goldkorn A. Epigenetic plasticity potentiates a rapid cyclical shift to and from an aggressive cancer phenotype. Int J Cancer 2020; 146:3065-3076. [PMID: 32017074 DOI: 10.1002/ijc.32904] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 01/22/2020] [Indexed: 12/17/2022]
Abstract
Highly tumorigenic, drug-resistant cancer stem-like cells drive cancer progression. These aggressive cells can arise repeatedly from bulk tumor cells independently of mutational events, suggesting an epigenetic mechanism. To test this possibility, we studied bladder cancer cells as they cyclically shifted to and from a cancer stem-like phenotype, and we discovered that these two states exhibit distinct DNA methylation and chromatin accessibility. Most differential chromatin accessibility was independent of methylation and affected the expression of driver genes such as E2F3, a cell cycle regulator associated with aggressive bladder cancer. Cancer stem-like cells exhibited increased E2F3 promoter accessibility and increased E2F3 expression that drove cell migration, invasiveness and drug resistance. Epigenetic interference using a DNA methylation inhibitor blocked the transition to a cancer stem-like state and reduced E2F3 expression. Our findings indicate that epigenetic plasticity plays a key role in the transition to and from an aggressive, drug-resistant phenotype.
Collapse
Affiliation(s)
- Tong Xu
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Hong-Tao Li
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Jenny Wei
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Meng Li
- Norris Bioinformatics Core, Health Sciences Libraries, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Tien-Chan Hsieh
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Yi-Tsung Lu
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | | | - Rong Xu
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Emmanuelle Hodara
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Gareth Morrison
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| | - Hemant Gujar
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Suhn Kyong Rhie
- Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Kimberly Siegmund
- Department of Preventive Medicine, University of Southern California, Los Angeles, CA
| | - Gangning Liang
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Amir Goldkorn
- Division of Medical Oncology, Department of Internal Medicine, University of Southern California Keck School of Medicine and Norris Comprehensive Cancer Center, Los Angeles, CA
| |
Collapse
|
34
|
Shi L, Zhu H, Shen Y, Dou X, Guo H, Wang P, Zhang S, Zhou L, Zou X. Regulation of E2F Transcription Factor 3 by microRNA-152 Modulates Gastric Cancer Invasion and Metastasis. Cancer Manag Res 2020; 12:1187-1197. [PMID: 32110093 PMCID: PMC7034297 DOI: 10.2147/cmar.s239752] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 01/30/2020] [Indexed: 12/13/2022] Open
Abstract
Background The transcription factor, E2F transcription factor 3 (E2F3), has been proved to modulate metastasis in multiple human cancers. The present study was aimed to expound the function and specific mechanism of E2F3 in gastric cancer (GC) progression. Materials and Methods The expression of E2F3, microRNA-152 (miR-152) and PLK1 (polo-like kinase 1) in GC cell lines was detected by quantitative RT-PCR and Western blot. The roles of E2F3 and miR-152 in GC metastasis were classified using gain-of-function and loss-of-function assays. The miRNAs directly targeting E2F3 were identified by bioinformatics analysis and luciferase reporter experiment. Chromatin immunoprecipitation was carried out to reveal the correlation between E2F3 and PLK1. Results E2F3 expression was frequently up-regulated in GC tissues, and its high expression might imply poor prognosis. Downregulation of E2F3 restrained GC migration and invasion in vitro and in vivo. Interestingly, we proved that miR-152 was an upstream regulator of E2F3. Moreover, miR-152 reduced E2F3 expression by directly targeting its 3ʹ-UTR, and then modulated GC metastasis via polo-like kinase 1 (PLK1) mediated protein kinase B (AKT) and extracellular signal-regulated kinase (ERK) signals. Conclusion E2F3 plays a crucial role in GC progression and the newly discovered miR-152/E2F3/PLK1 axis provides a new underlying target for therapy of metastasis in GC patients.
Collapse
Affiliation(s)
- Liangliang Shi
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Hao Zhu
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Yonghua Shen
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Xiaotan Dou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Huimin Guo
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Pin Wang
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Shu Zhang
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Lin Zhou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| | - Xiaoping Zou
- Department of Gastroenterology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing 210008, People's Republic of China.,Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, People's Republic of China.,Jiangsu Clinical Medical Center of Digestive Disease, Nanjing 210008, People's Republic of China
| |
Collapse
|
35
|
Zheng H, Wang JJ, Yang XR, Yu YL. Upregulation of miR-34c after silencing E2F transcription factor 1 inhibits paclitaxel combined with cisplatin resistance in gastric cancer cells. World J Gastroenterol 2020; 26:499-513. [PMID: 32089626 PMCID: PMC7015722 DOI: 10.3748/wjg.v26.i5.499] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/13/2019] [Accepted: 01/01/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND MicroRNA 34c (miR-34c) has been reported to be associated with malignant types of cancer, however, it remains unknown whether miR-34c is involved in chemoresistance in gastric cancer (GC).
AIM To investigate the effect of miR-34c and its upstream transcription factor E2F1 on paclitaxel combined with cisplatin resistance in GC cells.
METHODS Paired GC tissues and adjacent normal tissues were randomly sampled from 74 GC patients. miR-34c and E2F1 were detected by real-time quantitative PCR (qPCR) and Western blot. In addition, the drug resistance of GC cells to paclitaxel and cisplatin was induced by concentration gradient increasing methods, and changes in miR-34c and E2F1 during this process were measured. Furthermore, E2F1 and miR-34c overexpression or underexpression vectors were constructed and transfected into drug-resistant GC cells. MTT was employed to test the sensitivity of cells to paclitaxel combined with cisplatin, qPCR was adopted to detect the expression of miR-34c, Western blot was applied to detect the expression levels of E2F1, drug resistance-related proteins and apoptosis-related proteins, and flow cytometry was used for the determination of cell apoptosis and cell cycle status.
RESULTS E2F1 was overexpressed while miR-34c was underexpressed in GC. After inducing GC cells to be resistant to paclitaxel and cisplatin, E2F1 expression increased while miR-34c expression decreased. Both silencing E2F1 and over-expressing miR-34c could increase the sensitivity of drug-resistant GC cells to paclitaxel combined with cisplatin, promote cell apoptosis and inhibit cell proliferation. Among which, silencing E2F1 could reduce the expression of drug resistance-related proteins and apoptosis-related proteins, while over-expression of miR-34c could upregulate the expression of apoptosis-related proteins without affecting the expression of MDR-1, MRP and other drug resistance-related proteins. Rescue experiments demonstrated that inhibiting miR-34c could significantly weaken the sensitization of drug resistant cells, and Si E2F1 to paclitaxel combined with cisplatin.
CONCLUSION E2F1 inhibits miR-34c to promote the proliferation of GC cells and enhance the resistance to paclitaxel combined with cisplatin, and silencing E2F1 is conducive to improving the efficacy of paclitaxel combined with cisplatin in GC cells.
Collapse
Affiliation(s)
- Hong Zheng
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Jin-Jing Wang
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Xiao-Rong Yang
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| | - Yong-Lin Yu
- Department of Pathology, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, Guizhou Province, China
| |
Collapse
|
36
|
Wang T, Du M, Zhang W, Bai H, Yin L, Chen W, He X, Chen Q. MicroRNA-432 Suppresses Invasion and Migration via E2F3 in Nasopharyngeal Carcinoma. Onco Targets Ther 2019; 12:11271-11280. [PMID: 31908492 PMCID: PMC6927591 DOI: 10.2147/ott.s233435] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/05/2019] [Indexed: 12/18/2022] Open
Abstract
Background E2F transcription factor 3 (E2F3) is oncogenic and dysregulated in various malignancies. Complex networks involving microRNAs (miRNAs) and E2F3 regulate tumorigenesis and progression. However, the potential roles of E2F3 and its target miRNAs in nasopharyngeal carcinoma (NPC) are rarely reported. Methods E2F3 expression was detected in human NPC tissues and cell lines through quantitative real-time PCR. NPC cell proliferation, migration, and invasion were evaluated in vitro by colony forming, cell counting kit-8, wound healing, and Transwell invasion assays. Publicly available database software was used to explore the target miRNAs of E2F3. Dual-luciferase reporter assay was performed to identify the direct relationship. The function of miRNAs in vivo was investigated by using a tumor xenograft model. Results E2F3 was upregulated in NPC cell lines and tissues, and its exotic expression promoted NPC cell invasion and migration. E2F3 was identified as a target of miR-432, which restrained NPC cell invasion and migration in vitro and in vivo. Further experiments revealed that miR-432 repressed the invasion and migration potential of NPC cells by modulating E2F3 expression. Conclusion miRNA-432 suppressed the malignant biological behavior of NPC cells by targeting E2F3. This study provided further insights into NPC prognosis and treatment.
Collapse
Affiliation(s)
- Tingting Wang
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Mingyu Du
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Wenjun Zhang
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Hui Bai
- Department of Pathophysiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Li Yin
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Wei Chen
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Xia He
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, People's Republic of China
| | - Qi Chen
- Department of Pathophysiology, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| |
Collapse
|
37
|
Wang L, Wang L, Zhang X. Knockdown of lncRNA HOXA-AS2 Inhibits Viability, Migration and Invasion of Osteosarcoma Cells by miR-124-3p/E2F3. Onco Targets Ther 2019; 12:10851-10861. [PMID: 31853184 PMCID: PMC6914662 DOI: 10.2147/ott.s220072] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/21/2019] [Indexed: 12/19/2022] Open
Abstract
Background Osteosarcoma (OS) is one of the most frequent bone malignancies. Long noncoding RNAs (lncRNAs) have been revealed to participate in many cancers, including OS. This study aimed to explore the biological function of lncRNA homeobox A cluster antisense RNA2 (HOXA-AS2) and its potential mechanism in OS progression. Methods Twenty-seven OS patients were recruited for this study. U2OS and MG-63 cells were cultured for in vitro analyses. The levels of HOXA-AS2, microRNA-124-3p (miR-124-3p) and E2F transcription factor 3 (E2F3) were measured by quantitative real-time polymerase chain reaction or Western blot. OS progression was investigated by cell viability, migration and invasion using cell counting kit-8 or trans-well assay. The interaction among HOXA-AS2, miR-124-3p and E2F3 was explored by bioinformatics analysis, luciferase reporter assay, RNA immunoprecipitation and biotinylated RNA pull-down. Xenograft model was established by injecting U2OS cells into nude mice. Results HOXA-AS2 expression was increased in OS tissues and cells and associated with poor survival of patients. Knockdown of HOXA-AS2 inhibited cell viability, migration and invasion in OS cells. miR-124-3p could bind with HOXA-AS2 and its deficiency reversed the suppressive role of HOXA-AS2 knockdown. Moreover, E2F3 acted as a target of miR-124-3p and positively regulated by HOXA-AS2. Silence of E2F3 suppressed OS progression, which was abolished by miR-124-3p exhaustion. Interference of HOXA-AS2 attenuated U2OS xenograft tumor growth via upregulating miR-124-3p and downregulating E2F3. Conclusion HOXA-AS2 silence impeded OS progression possibly by functioning as a decoy of miR-124-3p to target E2F3, indicating novel evidence of HOXA-AS2 as a promising therapeutic target of OS.
Collapse
Affiliation(s)
- Linyi Wang
- Department of Spinal Trauma Surgery, Shouguang People's Hospital of Shandong Province, Shandong 262700, People's Republic of China
| | - Lijuan Wang
- Department of Anesthesiology, Shouguang People's Hospital of Shandong Province, Shouguang, Shandong 262700, People's Republic of China
| | - Xinhua Zhang
- Department of Spinal Trauma Surgery, Shouguang People's Hospital of Shandong Province, Shandong 262700, People's Republic of China
| |
Collapse
|
38
|
Zhu H, Ji Y, Li W, Wu M. Identification of key pathways and genes in colorectal cancer to predict the prognosis based on mRNA interaction network. Oncol Lett 2019; 18:3778-3786. [PMID: 31579079 PMCID: PMC6757265 DOI: 10.3892/ol.2019.10698] [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: 01/17/2019] [Accepted: 07/12/2019] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to identify key genes in colorectal cancer (CRC) that could be used to reliably diagnose this disease and to explore the potential underlying mechanisms in silico. The gene expression profiles of primary human cancer datasets GSE21510 and GSE32323 were downloaded from the Gene Expression Omnibus database. The limma R software package was used to identify differentially expressed (DE) genes. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed on DE genes using the Database for Annotation, Visualization and Integrated Discovery. The Search Tool for the Retrieval of Interacting Genes/Proteins database was used to construct a protein-protein interaction (PPI) network of the DE genes. Survival rate was analyzed and visualized using The Cancer Genome Atlas (TCGA). A total of 1,126 genes were significantly DE in the present study. All DE genes were enriched in KEGG pathways including 'cell cycle', 'mineral absorption', 'pancreatic secretion', 'pathways in cancer', 'metabolic pathways', 'aldosterone-regulated sodium reabsorption' and 'Wnt signaling pathway'. A total of 5 hub genes enriched in cell cycle and tumor-associated pathways, including E2F2, SKP2, MYC, CDKN1A and CDKN2B, were significantly DE and validated between tumor and normal tissues. CDKN1A and CDKN2B were identified within the PPI network using the Molecular Complex Detection algorithm. Survival and content distribution analyses of 362 clinical samples from TCGA revealed that CDKN1A effectively predicted the prognosis of patients. The present study identified key genes and potential signaling pathways involved in CRC. These findings may provide new insights for survival assessment during the clinical diagnosis of CRC.
Collapse
Affiliation(s)
- Hengzhou Zhu
- First Clinical Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
| | - Yi Ji
- First Clinical Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu 210000, P.R. China
| | - Wenting Li
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Institute of Oncology, The First Clinical Medical College, Nanjing, Jiangsu 210000, P.R. China
| | - Mianhua Wu
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Institute of Oncology, The First Clinical Medical College, Nanjing, Jiangsu 210000, P.R. China
| |
Collapse
|
39
|
Pei Y, Tang Z, Cai M, Yao Q, Xie B, Zhang X. The E2F3/miR-125a/DKK3 regulatory axis promotes the development and progression of gastric cancer. Cancer Cell Int 2019; 19:212. [PMID: 31423109 PMCID: PMC6693087 DOI: 10.1186/s12935-019-0930-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 08/04/2019] [Indexed: 12/20/2022] Open
Abstract
Background Gastric cancer (GC) is one of the most common malignant tumours with high mortality and metastasis rates. E2F3, miR-125a and DKK3 have been reported to be involved in various cancer types, but their detailed roles in GC have not been fully understood. Methods A QRT-PCR assay was used to examine the expression of E2F3, miR-125a and DKK3 in metastatic and nonmetastatic GC tissues. DKK3 plasmids, DKK3 shRNA, miR-125a mimic and miR-125a inhibitor were transfected into BGC823 cells to evaluate the biological functions of DKK3 and miR-125a. A scratch wound healing assay and Transwell assay were utilized to determine the migratory and invasive ability of BGC823 cells transfected with the DKK3 plasmids, DKK3 shRNA, miR-125a mimic and miR-125a inhibitor. Moreover, qRT-PCR and WB analysis were used to analyse the mRNA and protein expression levels of metastasis-related genes after proper transfection. The target relationship between miR-125a and the DKK3 mRNA 3′UTR was determined by a dual luciferase reporter assay, while the interaction between E2F3 and miR-125a was analysed by a ChIP assay. Results The clinical data showed that the DKK3 expression level in metastatic GC samples was significantly less than that in nonmetastatic GC samples, whereas the E2F3 and miR-125a expression levels in metastatic GC samples were notably greater than those in nonmetastatic GC samples. Moreover, knockdown of DKK3 and overexpression of miR-125a markedly promoted the migratory and invasive abilities of GC cells. Additionally, the protein and mRNA expression levels of metastasis-related genes, including N-cadherin, Vimentin, MMP2 and MMP9, were markedly decreased in the DKK3 and miR-125a inhibitor groups compared to their control groups and markedly increased in the DKK3 shRNA and miR-125a groups compared with the control group. Finally, a dual luciferase reporter assay and ChIP assay showed that E2F3 binds to the miR-125a promoter and that the DKK3 mRNA 3′UTR is a direct target of miR-125a. Furthermore, analysis of Kaplan–Meier curves also confirmed the regulatory role of E2F3 on miR-125a. Additionally, BGC823 cells transfected with E2F3 plasmids and shRNA downregulated and upregulated the expression of DKK3, respectively. Conclusion Our results suggested that E2F3 might play a tumour-promoting role in the metastasis and progression of GC by regulating the miR-125a/DKK3 axis.
Collapse
Affiliation(s)
- Yihua Pei
- 1Central Laboratory, ZhongShan Hospital XiaMen University, No. 201 Hubin South Road, Xiamen, 361004 Fujian China
| | - Zhiteng Tang
- 2Department of Pathology, ZhongShan Hospital XiaMen University, Xiamen, 361004 Fujian China
| | - Minjing Cai
- 3Department of Center of Clinical Laboratory, ZhongShan Hospital XiaMen University, Xiamen, 361004 Fujian China
| | - Qin Yao
- 1Central Laboratory, ZhongShan Hospital XiaMen University, No. 201 Hubin South Road, Xiamen, 361004 Fujian China
| | - Bozhen Xie
- 4Department of Spine Surgery, ZhongShan Hospital XiaMen University, Xiamen, 361004 Fujian China
| | - Xin Zhang
- 5Department of Rehabilitation, ZhongShan Hospital XiaMen University, Xiamen, 361004 Fujian China
| |
Collapse
|
40
|
Wang C, Ding M, Zhu YY, Hu J, Zhang C, Lu X, Ge J, Wang JJ, Zhang C. Circulating miR-200a is a novel molecular biomarker for early-stage renal cell carcinoma. ACTA ACUST UNITED AC 2019. [DOI: 10.1186/s41544-019-0023-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
41
|
Abstract
The cyclin-dependent kinase (CDK)-RB-E2F axis forms the core transcriptional machinery driving cell cycle progression, dictating the timing and fidelity of genome replication and ensuring genetic material is accurately passed through each cell division cycle. The ultimate effectors of this axis are members of a family of eight distinct E2F genes encoding transcriptional activators and repressors. E2F transcriptional activity is tightly regulated throughout the cell cycle via transcriptional and translational regulation, post-translational modifications, protein degradation, binding to cofactors and subcellular localization. Alterations in one or more key components of this axis (CDKs, cyclins, CDK inhibitors and the RB family of proteins) occur in virtually all cancers and result in heightened oncogenic E2F activity, leading to uncontrolled proliferation. In this Review, we discuss the activities of E2F proteins with an emphasis on the newest atypical E2F family members, the specific and redundant functions of E2F proteins, how misexpression of E2F transcriptional targets promotes cancer and both current and developing therapeutic strategies being used to target this oncogenic pathway.
Collapse
Affiliation(s)
- Lindsey N Kent
- Department of Biochemistry and Molecular Biology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
| | - Gustavo Leone
- Department of Biochemistry and Molecular Biology, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA.
| |
Collapse
|
42
|
Wang D, Luo Y, Wang G, Yang Q. Circular RNA expression profiles and bioinformatics analysis in ovarian endometriosis. Mol Genet Genomic Med 2019; 7:e00756. [PMID: 31144476 PMCID: PMC6637292 DOI: 10.1002/mgg3.756] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 12/16/2022] Open
Abstract
Background Circular RNAs (circRNAs) with miRNA response elements (MREs) could function as competing endogenous RNA (ceRNA) in regulating gene expression, thus playing vital roles in pathogenesis and progression of many diseases. However, the function of circRNAs in endometriosis remains unknown. This study was carried to profile the expression patterns of circRNAs in ovarian endometriosis. Methods High throughput RNA‐Seq was performed in six paired ectopic and eutopic endometrium tissues (ecEM vs. euEM), followed by quantitative real‐time polymerase chain reaction (qRT‐PCR) in 30 paired samples. Through bioinformatics prediction, we constructed a circRNA‐miRNA ‐mRNA network and elucidated circRNAs functions by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Results A total of 146 upregulated and 148 downregulated circRNAs were identified, binding with 2,495 MREs. The qRT‐PCR validation results of four upregulated circRNAs matched the RNA‐Seq data. The ceRNA network included 48 miRNAs and 296 mRNAs. Functional analysis revealed several important pathways such as MAPK signaling pathway, and PI3K‐AKT signaling pathway, which might be associated with the pathogenesis and development of endometriosis. Conclusion Our data suggested that circRNAs are differentially expressed in endometriosis, which might be candidate factors for pathogenesis of this disease and be considered as promising therapeutic targets in the future.
Collapse
Affiliation(s)
- Dandan Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yajuan Luo
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Guangwei Wang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qing Yang
- Department of Obstetrics & Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
43
|
Zha F, Bai L, Tang B, Li J, Wang Y, Zheng P, Ji T, Bai S. MicroRNA-503 contributes to podocyte injury via targeting E2F3 in diabetic nephropathy. J Cell Biochem 2019; 120:12574-12581. [PMID: 30834596 DOI: 10.1002/jcb.28524] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/04/2019] [Accepted: 01/14/2019] [Indexed: 12/29/2022]
Abstract
Diabetic nephropathy (DN) is serious diabetic complication with capillary injury. Podocyte injury exerts a crucial effect on DN pathogenesis. MicroRNA-503 (miR-503) has been reported in various diseases including DN. Here, we investigated the detailed mechanism of miR-503 in the podocyte injury of DN. The functional role of miR-503 was investigated in cultured podocytes and diabetic rats. Podocyte injury was evaluated by migration and apoptosis experiments in podocytes and we observed that high glucose elevated miR-503 in a time and dose-dependent manner. Meanwhile, E2F transcription factor 3 (E2F3), as a crucial regulator in multiple diseases, was predicted as a potential target of miR-503 here. It was shown that E2F3 was greatly decreased in podocytes incubated with high glucose and miR-503 modulated its expression negatively. In addition, downregulation of E2F3 contributed to podocyte injury, which was reversed by miR-503 inhibitors in vitro. Furthermore, we proved that increase of miR-503 resulted in an unfavorable renal function in diabetic rats via targeting E2F3. These revealed for the first time that the overexpression of miR-503 promoted podocyte injury via targeting E2F3 in diabetic nephropathy and miR-503/E2F3 axis might represent a pathological mechanism of diabetic nephropathy progression.
Collapse
Affiliation(s)
- Fangfang Zha
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - Lin Bai
- Department of Nephrology, Huai'an Second People's Hospital, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Huai'an, P. R. China
| | - Bo Tang
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - Ji Li
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - Yakun Wang
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - PengXi Zheng
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - Tingting Ji
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| | - Shoujun Bai
- Department of Nephrology, Qingpu Branch of Zhongshan Hospital Affiliated to Fudan University, Qingpu District, Shanghai, P. R. China
| |
Collapse
|
44
|
Alrikaby Z, Liu X, Zhang TH, Frascoli F. Stability and Hopf bifurcation analysis for a Lac operon model with nonlinear degradation rate and time delay. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2019; 16:1729-1749. [PMID: 31137182 DOI: 10.3934/mbe.2019083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this paper, we construct a discrete time delay Lac operon model with nonlinear degradation rate for mRNA, resulting from the interaction among several identical mRNA pieces. By taking a discrete time delay as bifurcation parameter, we investigate the nonlinear dynamical behaviour arising from the model, using mathematical tools such as stability and bifurcation theory. Firstly, we discuss the existence and uniqueness of the equilibrium for this system and investigate the effect of discrete delay on its dynamical behaviour. Absence or limited delay causes the system to have a stable equilibrium, which changes into a Hopf point producing oscillations if time delay is increased. These sustained oscillation are shown to be present only if the nonlinear degradation rate for mRNA satisfies specific conditions. The direction of the Hopf bifurcation giving rise to such oscillations is also determined, via the use of the so-called multiple time scales technique. Finally, numerical simulations are shown to validate and expand the theoretical analysis. Overall, our findings suggest that the degree of nonlinearity of the model can be used as a control parameter for the stabilisation of the system.
Collapse
Affiliation(s)
- Zenab Alrikaby
- Department of Mathematics, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
- Department of Mathematics, University of Thi-Qar, Nasiriyah, Iraq
| | - Xia Liu
- College of Mathematics and Information Sciences, Henan Normal University, Xinxiang 453007, Henan, P.R., China
| | - Tong Hua Zhang
- Department of Mathematics, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| | - Federico Frascoli
- Department of Mathematics, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
| |
Collapse
|
45
|
Yang W, Ma J, Zhou W, Cao B, Zhou X, Zhang H, Zhao Q, Hong L, Fan D. Reciprocal regulations between miRNAs and HIF-1α in human cancers. Cell Mol Life Sci 2019; 76:453-471. [PMID: 30317527 PMCID: PMC11105242 DOI: 10.1007/s00018-018-2941-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 09/17/2018] [Accepted: 10/08/2018] [Indexed: 02/07/2023]
Abstract
Hypoxia inducible factor-1α (HIF-1α) is a central molecule involved in mediating cellular processes. Alterations of HIF-1α and hypoxically regulated microRNAs (miRNAs) are correlated with patients' outcome in various cancers, indicating their crucial roles on cancer development. Recently, an increasing number of studies have revealed the intricate regulations between miRNAs and HIF-1α in modulating a wide variety of processes, including proliferation, metastasis, apoptosis, and drug resistance, etc. miRNAs are a class of small noncoding RNAs which function as negative regulators by directly targeting mRNAs. Evidence shows that miRNAs can be regulated by HIF-1α at transcriptional level. In turn, HIF-1α itself can be modulated by many miRNAs whose alterations have been implicated in tumorigenesis, thus forming a reciprocal regulation network. These findings add a new layer of complexity to our understanding of HIF-1α regulatory networks. Here, we will provide a comprehensive overview of the current advances about the bidirectional interactions between HIF-1α and miRNAs in human cancers. Besides, the review will summarize the roles of miRNAs/HIF-1α crosstalk according to various cellular processes. Finally, the potential values of miRNAs/HIF-1α loops in clinical applications are discussed.
Collapse
Affiliation(s)
- Wanli Yang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| | - Jiaojiao Ma
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| | - Wei Zhou
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| | - Bo Cao
- Air Force Military Medical University, Xi'an, China
| | - Xin Zhou
- Air Force Military Medical University, Xi'an, China
| | - Hongwei Zhang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| | - Qingchuan Zhao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| | - Liu Hong
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China.
| | - Daiming Fan
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi'an, China
| |
Collapse
|
46
|
Long non-coding RNA FLVCR1-AS1 contributes to the proliferation and invasion of lung cancer by sponging miR-573 to upregulate the expression of E2F transcription factor 3. Biochem Biophys Res Commun 2018; 505:931-938. [PMID: 30309647 DOI: 10.1016/j.bbrc.2018.09.057] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 09/09/2018] [Indexed: 12/16/2022]
Abstract
Lung cancer is one of the most common causes of cancer-related death all over the world. In recent years, long non-coding RNAs (lncRNAs) have been reported to play critical roles in the development and progression of human malignancies. In the present study, we aimed to study the role and mechanism of FLVCR1-AS1 in human non-small cell lung cancer (NSCLC). Results revealed that FLVCR1-AS1 was markedly upregulated in NSCLC tissues and cell lines. Knockdown of FLVCR1-AS1 significantly inhibited the proliferation, migration, invasion and promoted apoptosis of NSCLC cells, and suppressed tumor growth of NSCLC in vivo. Moreover, we explored regulatory mechanism, and found that FLVCR1-AS1 functioned as a competing endogenous RNA (ceRNA) by directly binding to miRNA-573, and E2F transcription factor 3 (E2F3) was identified as a down-stream target of miR-573. FLVCR1-AS1 positively regulated E2F3 expression through inhibiting miR-573 in NSCLC cells. Our findings suggested that FLVCR1-AS1/miR-573/E2F3 axis was an important signaling pathway in mediating tumorigenesis and progression of NSCLC, and further indicated that FLVCR1-AS1 could be a novel diagnostic biomarker and therapeutic target for NSCLC.
Collapse
|
47
|
Wan J, Liu H, Feng Q, Liu J, Ming L. HOXB9 promotes endometrial cancer progression by targeting E2F3. Cell Death Dis 2018; 9:509. [PMID: 29724991 PMCID: PMC5938704 DOI: 10.1038/s41419-018-0556-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/30/2018] [Accepted: 04/03/2018] [Indexed: 12/30/2022]
Abstract
HOXB9, as a HOX family transcription factor, playing a significant role in embryonic development and cancer progression. However, the function of HOXB9 and its precise mechanism in regulating endometrial cancer progression remains unknown. Here, we demonstrated that the expression of HOXB9 was increased in endometrial cancer, and associated with histological grade and lymph node metastasis. In addition, elevated HOXB9 predicts a poor prognosis in endometrial cancer patients. Interestingly, bioinformatics analysis of TCGA cancer database showed that HOXB9 expression is positively correlated with E2F3 expression. Moreover, HOXB9 promoted E2F3 expression by directly targeting to its promoter. Furthermore, we found that knocking down E2F3 abolished the ability of HOXB9 in enhancing cell migration. Taken together, for the first, we demonstrated the function and mechanism of HOXB9 in regulating endometrial cancer progression, and indicated HOXB9 may be a novel prognostic marker of endometrial cancer.
Collapse
Affiliation(s)
- Junhu Wan
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China.
| | - Hongyang Liu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Quanling Feng
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China
| | - Jun Liu
- Department of General Surgery, Zhecheng People's Hospital, 476000, Shangqiu, Henan, China
| | - Liang Ming
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, 450052, Zhengzhou, Henan, China.
| |
Collapse
|