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Wang Y, Zou R, Li D, Gao X, Lu X. Exosomal circSTRBP from cancer cells facilitates gastric cancer progression via regulating miR-1294/miR-593-3p/E2F2 axis. J Cell Mol Med 2024; 28:e18217. [PMID: 38520208 PMCID: PMC10960172 DOI: 10.1111/jcmm.18217] [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: 07/15/2023] [Revised: 09/27/2023] [Accepted: 01/09/2024] [Indexed: 03/25/2024] Open
Abstract
CircRNAs represent a new class of non-coding RNAs which show aberrant expression in diverse cancers, such as gastric cancer (GC). circSTRBP, for instance, is suggested to be overexpressed in GC cells and tissues. However, the biological role of circSTRBP in the progression of GC and the potential mechanisms have not been investigated. circSTRBP levels within GC cells and tissues were measured by RT-qPCR. The stability of circSTRBP was assessed by actinomycin D and Ribonuclease R treatment. Cell proliferation, migration, invasion and in vitro angiogenic abilities after circSTRBP knockdown were analysed through CCK-8 assay, transwell culture system and the tube formation assay. The interaction of circSTRBP with the predicted target microRNA (miRNA) was examined by RNA immunoprecipitation and luciferase reporter assays. Xenograft tumour model was established to evaluate the role of exosomal circSTRBP in the tumour formation of GC cells. circSTRBP was upregulated in GC cells and tissues, and there was an increased level of circSTRBP in GC-derived exosomes. circSTRBP in the exosomes enhanced GC cell growth and migration in vitro, which modulates E2F Transcription Factor 2 (E2F2) expression through targeting miR-1294 and miR-593-3p. Additionally, exosomal circSTRBP promoted the tumour growth of GC cells in the xenograft model. Exosomal circSTRBP is implicated in the progression of GC by modulating the activity of miR-1294/miR-593-3p/E2F2 axis.
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Affiliation(s)
- Yin Wang
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
| | - Rong Zou
- Department of Gastroenterology, Wuhan Puren HospitalWuhan University of Science and TechnologyWuhanChina
| | - Deke Li
- Department of AnesthesiologyThe Fifth Hospital of WuhanChina
| | - Xiankui Gao
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
| | - Xingjun Lu
- Department of GastroenterologyBozhou Hospital affiliated to Anhui Medical UniversityBozhouChina
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Li F, Yan J, Leng J, Yu T, Zhou H, Liu C, Huang W, Sun Q, Zhao W. Expression patterns of E2Fs identify tumor microenvironment features in human gastric cancer. PeerJ 2024; 12:e16911. [PMID: 38371373 PMCID: PMC10870925 DOI: 10.7717/peerj.16911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 01/17/2024] [Indexed: 02/20/2024] Open
Abstract
Objective E2F transcription factors are associated with tumor development, but their underlying mechanisms in gastric cancer (GC) remain unclear. This study explored whether E2Fs determine the prognosis or immune and therapy responses of GC patients. Methods E2F regulation patterns from The Cancer Genome Atlas (TCGA) were systematically investigated and E2F patterns were correlated with the characteristics of cellular infiltration in the tumor microenvironment (TME). A principal component analysis was used to construct an E2F scoring model based on prognosis-related differential genes to quantify the E2F regulation of a single tumor. This scoring model was then tested in patient cohorts to predict effects of immunotherapy. Results Based on the expression profiles of E2F transcription factors in GC, two different regulatory patterns of E2F were identified. TME and survival differences emerged between the two clusters. Lower survival rates in the Cluster2 group were attributed to limited immune function due to stromal activation. The E2F scoring model was then constructed based on the E2F-related prognostic genes. Evidence supported the E2F score as an independent and effective prognostic factor and predictor of immunotherapy response. A gene-set analysis correlated E2F score with the characteristics of immune cell infiltration within the TME. The immunotherapy cohort database showed that patients with a higher E2F score demonstrated better survival and immune responses. Conclusions This study found that differences in GC prognosis might be related to the E2F patterns in the TME. The E2F scoring system developed in this study has practical value as a predictor of survival and treatment response in GC patients.
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Affiliation(s)
- Fanni Li
- Department of Talent Highland, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jun Yan
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jing Leng
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Tianyu Yu
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Huayou Zhou
- Department of General Surgery, Hanzhong Central Hospital, Hanzhong, China
| | - Chang Liu
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wenbo Huang
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qi Sun
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wei Zhao
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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Gołąbek K, Hudy D, Świętek A, Gaździcka J, Dąbrowska N, Miśkiewicz-Orczyk K, Zięba N, Misiołek M, Strzelczyk JK. miR-125b-5p, miR-155-3p, and miR-214-5p and Target E2F2 Gene in Oral Squamous Cell Carcinoma. Int J Mol Sci 2023; 24:ijms24076320. [PMID: 37047293 PMCID: PMC10094498 DOI: 10.3390/ijms24076320] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023] Open
Abstract
It is known that E2F2 (E2F transcription factor 2) plays an important role as controller in the cell cycle. This study aimed to analyse the expression of the E2F2 gene and E2F2 protein and demonstrate E2F2 target microRNAs (miRNAs) candidates (miR-125b-5p, miR-155-3p, and miR-214-5p) in oral squamous cell carcinoma tumour and margin samples. The study group consisted 50 patients. The E2F2 gene and miRNAs expression levels were assessed by qPCR, while the E2F2 protein was assessed by ELISA. When analysing the effect of miRNAs expression on E2F2 gene expression and E2F2 protein level, we observed no statistically significant correlations. miR-125b-5p was downregulated, while miR-155-3p, and miR-214-5p were upregulated in tumour samples compared to margin. We observed a difference between the miR-125b-5p expression level in smokers and non-smokers in margin samples. Furthermore, HPV-positive individuals had a significantly higher miR-125b-5p and miR-214-5p expression level compared to HPV-negative patients in tumour samples. The study result showed that the E2F2 gene is not the target for analysed miRNAs in OSCC. Moreover, miR-155-3p and miR-125b-5p could play roles in the pathogenesis of OSCC. A differential expression of the analysed miRNAs was observed in response to tobacco smoke and HPV status.
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Affiliation(s)
- Karolina Gołąbek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
- Correspondence:
| | - Dorota Hudy
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Agata Świętek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
- Silesia LabMed Research and Implementation Center, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Jadwiga Gaździcka
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
| | - Natalia Dąbrowska
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK
| | - Katarzyna Miśkiewicz-Orczyk
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowska St., 41-800 Zabrze, Poland
| | - Natalia Zięba
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowska St., 41-800 Zabrze, Poland
| | - Maciej Misiołek
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowska St., 41-800 Zabrze, Poland
| | - Joanna Katarzyna Strzelczyk
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana St., 41-808 Zabrze, Poland
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Li Z, Lang Z, Wang T, Qu G, Sui W, Liu J. LncRNA SNHG22 promotes gastric cancer progression by regulating the miR-101-3p/e2f2 axis. Cell Cycle 2023; 22:347-360. [PMID: 36281526 PMCID: PMC9851253 DOI: 10.1080/15384101.2022.2119515] [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: 06/27/2021] [Revised: 04/04/2022] [Accepted: 08/26/2022] [Indexed: 01/22/2023] Open
Abstract
Gastric cancer (GC) still poses a significant threat to human life. Hence, there is an urgent need to understand the mechanism of GC progression and develop novel therapeutics approach to treating GC. This study was conducted to evaluate the role of the lncRNA SNHG22 in the progression of GC. First, GC data from TCGA were analyzed using GEPIA. After the starbase database was used to predict SNHG22 target miRNA and miR-101-3p target mRNA. The predictions were validated using a dual-luciferase reporter assay, biotinylated RNA pull-down assay, and RIP-qRT-PCR. The relative expression of SNHG22, miR-101-3p, and E2F2 was measured by qRT-PCR and western blot (WB) analysis, while the mechanism of GC cell proliferation was elucidated through the colony formation and CCK-8 assay. Our result showed that SNHG22 was upregulated significantly in GC tissue samples from TCGA database, GC cell lines, and clinical tissue samples, and its expression was related to low survival rate of gastric cancer patients. Bioinformatics prediction predicted miR-101-3p as the potential target of SNHG22 and E2F2 genes as miR-101-3p target mRNA. We found that E2F2 expression was negatively associated with overall survival of GC patients. Functional study showed that silencing SNHG22 markedly inhibited the proliferation, migration, and invasion of GC cells as well as in vivo tumor growth. This was reversed after inhibiting miR-101-3p or overexpressing E2F2. The lncRNA SNHG22 promotes the proliferation, migration, and invasion of GC cells via the miR-101-3p/E2F2 axis. SNHG22 might be a potential prognostic indicator in gastric cancer.
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Affiliation(s)
- Zhen Li
- Department of General & Pediatric surgery, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
| | - Zhiqiang Lang
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
| | - Ting Wang
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
| | - Guimei Qu
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
| | - Wu Sui
- Department of General & Pediatric surgery, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
| | - Jing Liu
- Department of Pathology, Yantai Yuhuangding Hospital, Yantai, Shandong Province, China
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Zeng Z, Jiang W, Kan J, Zhang D, Li R, He F, Hu Y, Li X, Zhang E, Cao Z. Shentao Ruangan formula promotes apoptosis via the E2F2-p53 pathway in hepatocellular carcinoma. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 109:154565. [PMID: 36610125 DOI: 10.1016/j.phymed.2022.154565] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 11/03/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a malignant tumor with high morbidity and mortality rates. E2F2 is an independent predictor of poor prognosis in HCC; however, The mechanism by which E2F2 promotes the progression of HCC remains unclear. The Shentao Ruangan (STR) formula exhibits antitumor efficacy against HCC; however, the underlying antitumor mechanisms remain unknown. PURPOSE To explore the regulatory effect of E2F2 on the p53 signaling pathway and reveal the role and mechanism of STR in promoting cell apoptosis via the E2F2-p53 signaling pathway in HCC. METHODS E2F2 overexpression or silencing by lentivirus in HepG2 cells were used to explore their influence on apoptosis and the p53 pathway. An H22 tumor-bearing mice model was used to determine the therapeutic efficacy of STR and its effects on the E2F2-p53 pathway. STR-mediated serum (STR-MS) was prepared, and its chemical constituents were identified using mass spectrometry. The effects of STR-MS on viability and apoptosis of HepG2 cells and the E2F2-p53 pathway were investigated and validated using rescue experiments. RESULTS E2F2 overexpression significantly inhibited apoptosis and the p53 pathway in HepG2 cells, whereas E2F2-silenced HepG2 cells showed the reverse. This increased apoptosis was rescued by the addition of a p53 inhibitor (PFT-α) to E2F2-silenced HepG2 cells. In vivo, high doses of STR could remarkably inhibit the growth of xenografts, promote the apoptosis of hepatoma cells, downregulate E2F2, and activate the p53-dependent mitochondrial apoptotic pathway with good safety. In vitro, STR-MS exhibited similar effectiveness, and the best effect was achieved at 30% STR-MS concentration for 48 h. When 30% STR-MS was added to E2F2-overexpressing cells, the increased apoptosis and expression of key proteins in the p53-dependent mitochondrial apoptosis pathway were significantly rescued. CONCLUSION Our findings demonstrate, for the first time, that E2F2 inhibits hepatoma cell apoptosis in a p53-dependent manner and that STR may promote apoptosis by regulating the E2F2-p53 pathway in HCC.
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Affiliation(s)
- Zhili Zeng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Weichi Jiang
- Artemisinin Research Center, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Jun Kan
- Department of VIP Region, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, China
| | - Dong Zhang
- The Fourth School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Rui Li
- The First School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510405, China
| | - Fan He
- Department of Oncology, The First Affiliated Hospital of Guizhou University of Chinese Medicine, Guiyang, Guizhou 550000, China
| | - Yuechen Hu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Xiushen Li
- Department of Obstetrics and Gynecology, Shenzhen University General Hospital Shenzhen, Guangdong 518000, China.
| | - Enxin Zhang
- Department of Oncology, Shenzhen Bao'an Authentic TCM Therapy Hospital, Shenzhen, Guangdong 518000, China.
| | - Zebiao Cao
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China; Post-Doctoral Research Center, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, China; Guangdong Provincial Academy of Chinese Medical Sciences, Guangzhou, Guangdong 510120, China; The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, China.
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Exosome-Encapsulated miR-31, miR-192, and miR-375 Serve as Clinical Biomarkers of Gastric Cancer. JOURNAL OF ONCOLOGY 2023; 2023:7335456. [PMID: 36844871 PMCID: PMC9950326 DOI: 10.1155/2023/7335456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 02/18/2023]
Abstract
In recent years, microRNAs (miRNAs) derived from exosomes have been attracting attention as novel clinical biomarkers in a variety of cancers. In this study, plasma samples from 60 gastric cancer (GC) patients and 63 healthy individuals were collected, and the exosomal microRNAs (ex-miRNAs) were isolated. We determined the specific ex-miRNAs through miRNA microarray and a database of differentially expressed miRNAs called dbDEMC. Then, the expression levels of exosomal miR-31, miR-192, and miR-375 were analyzed by quantitative polymerase chain reaction (qRT-PCR). Compared to the matched controls, exosomal miR-31, miR-375, and miR-192 were significantly upregulated in GC patients. Also, they were found to be associated with gender, with miR-192 being significantly upregulated in male GC patients. Kaplan-Meier analysis indicated that high expressions of exosomal miR-31, miR-375, and miR-192 were positively correlated with poor clinical outcomes of GC patients. Cox univariate and multivariate analysis found that ex-miR-375 expression and TNM stage were independent prognostic factors of overall survival (OS). Our findings revealed that exosomal miR-31, miR-192, and miR-375 might serve as noninvasive, sensitive, and specific biomarkers for the diagnosis and prognosis of GC patients.
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Gołąbek K, Rączka G, Gaździcka J, Miśkiewicz-Orczyk K, Zięba N, Krakowczyk Ł, Misiołek M, Strzelczyk JK. Expression Profiles of CDKN2A, MDM2, E2F2 and LTF Genes in Oral Squamous Cell Carcinoma. Biomedicines 2022; 10:biomedicines10123011. [PMID: 36551770 PMCID: PMC9775533 DOI: 10.3390/biomedicines10123011] [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: 11/01/2022] [Revised: 11/17/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is one of the most commonly detected neoplasms worldwide. Not all mechanisms associated with cell cycle disturbances are known in OSCC. Examples of genes involved in the control of the cell cycle are CDKN2A, MDM2, E2F2 and LTF. The aim of this study was to examine the possible association between CDKN2A, MDM2, E2F2 and LTF mRNA expression and influence on clinical variables. METHODS The study group consisted of 88 Polish patients. The gene expression levels were assessed by quantitative reverse transcription PCR. RESULTS We found no statistically significant differences in the expression level of CDKN2A, MDM2, E2F2 and LTF genes in tumour samples compared to margin samples. No association was found between the gene expression levels and clinical parameters, except E2F2. The patients with G2 tumours had a significantly higher gene expression level of E2F2 than patients with low-grade G1 tumours. CONCLUSIONS We have not demonstrated that a change in expression profiles of genes has a significant impact on the pathogenesis of OSCC. It may also be useful to conduct further studies on the use of E2F2 expression profile changes as a factor to describe the invasiveness and dynamics of OSCC development.
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Affiliation(s)
- Karolina Gołąbek
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana Str., 41-808 Zabrze, Poland
- Correspondence:
| | - Grzegorz Rączka
- Department of Forest Management Planning, Poznań University of Life Sciences, 71 C Wojska Polskiego Str., 60-625 Poznan, Poland
| | - Jadwiga Gaździcka
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana Str., 41-808 Zabrze, Poland
| | - Katarzyna Miśkiewicz-Orczyk
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej Str., 41-800 Zabrze, Poland
| | - Natalia Zięba
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej Str., 41-800 Zabrze, Poland
| | - Łukasz Krakowczyk
- Clinic of Oncological and Reconstructive Surgery, Maria Sklodowska-Curie National Research Institute of Oncology, 15 Wybrzeże Armii Krajowej Str., 44-102 Gliwice, Poland
| | - Maciej Misiołek
- Department of Otorhinolaryngology and Oncological Laryngology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 10 C Skłodowskiej Str., 41-800 Zabrze, Poland
| | - Joanna Katarzyna Strzelczyk
- Department of Medical and Molecular Biology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, 19 Jordana Str., 41-808 Zabrze, Poland
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Khan M, Lin J, Wang B, Chen C, Huang Z, Tian Y, Yuan Y, Bu J. A novel necroptosis-related gene index for predicting prognosis and a cold tumor immune microenvironment in stomach adenocarcinoma. Front Immunol 2022; 13:968165. [PMID: 36389725 PMCID: PMC9646549 DOI: 10.3389/fimmu.2022.968165] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/05/2022] [Indexed: 11/30/2022] Open
Abstract
Background Gastric cancer (GC) represents a major global clinical problem with very limited therapeutic options and poor prognosis. Necroptosis, a recently discovered inflammatory form of cell death, has been implicated in carcinogenesis and inducing necroptosis has also been considered as a therapeutic strategy. Objective We aim to evaluate the role of this pathway in gastric cancer development, prognosis and immune aspects of its tumor microenvironment. Methods and results In this study, we evaluated the gene expression of 55 necroptosis-related genes (NRGs) that were identified via carrying out a comprehensive review of the medical literature. Necroptosis pathway was deregulated in gastric cancer samples (n=375) as compared to adjacent normal tissues (n=32) obtained from the “The Cancer Genome Atlas (TCGA)”. Based on the expression of these NRGs, two molecular subtypes were obtained through consensus clustering that also showed significant prognostic difference. Differentially expressed genes between these two clusters were retrieved and subjected to prognostic evaluation via univariate cox regression analysis and LASSO cox regression analysis. A 13-gene risk signature, termed as necroptosis-related genes prognostic index (NRGPI), was constructed that comprehensively differentiated the gastric cancer patients into high- and low-risk subgroups. The prognostic significance of NRGPI was validated in the GEO cohort (GSE84437: n=408). The NRGPI-high subgroup was characterized by upregulation of 10 genes (CYTL1, PLCL1, CGB5, CNTN1, GRP, APOD, CST6, GPX3, FCN1, SERPINE1) and downregulation of 3 genes (EFNA3, E2F2, SOX14). Further dissection of these two risk groups by differential gene expression analysis indicated involvement of signaling pathways associated with cancer cell progression and immune suppression such as WNT and TGF-β signaling pathway. Para-inflammation and type-II interferon pathways were activated in NRGPI-high patients with an increased infiltration of Tregs and M2 macrophage indicating an exhausted immune phenotype of the tumor microenvironment. These molecular characteristics were mainly driven by the eight NRGPI oncogenes (CYTL1, PLCL1, CNTN1, GRP, APOD, GPX3, FCN1, SERPINE1) as validated in the gastric cancer cell lines and clinical samples. NRGPI-high patients showed sensitivity to a number of targeted agents, in particular, the tyrosine kinase inhibitors. Conclusions Necroptosis appears to play a critical role in the development of gastric cancer, prognosis and shaping of its tumor immune microenvironment. NRGPI can be used as a promising prognostic biomarker to identify gastric cancer patients with a cold tumor immune microenvironment and poor prognosis who may response to selected molecular targeted therapy.
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Affiliation(s)
- Muhammad Khan
- Department of Oncology, Guangdong Second Provincial General Hospital, Guangzhou, China
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Jie Lin
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Baiyao Wang
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Chengcong Chen
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhong Huang
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Yunhong Tian
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Yawei Yuan
- Department of Oncology, Guangdong Second Provincial General Hospital, Guangzhou, China
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
- *Correspondence: Junguo Bu, ; Yawei Yuan,
| | - Junguo Bu
- Department of Oncology, Guangdong Second Provincial General Hospital, Guangzhou, China
- *Correspondence: Junguo Bu, ; Yawei Yuan,
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Ghobadi MZ, Emamzadeh R, Afsaneh E. Exploration of mRNAs and miRNA classifiers for various ATLL cancer subtypes using machine learning. BMC Cancer 2022; 22:433. [PMID: 35449091 PMCID: PMC9026691 DOI: 10.1186/s12885-022-09540-1] [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: 02/16/2022] [Accepted: 04/14/2022] [Indexed: 11/29/2022] Open
Abstract
Background Adult T-cell Leukemia/Lymphoma (ATLL) is a cancer disease that is developed due to the infection by human T-cell leukemia virus type 1. It can be classified into four main subtypes including, acute, chronic, smoldering, and lymphoma. Despite the clinical manifestations, there are no reliable diagnostic biomarkers for the classification of these subtypes. Methods Herein, we employed a machine learning approach, namely, Support Vector Machine-Recursive Feature Elimination with Cross-Validation (SVM-RFECV) to classify the different ATLL subtypes from Asymptomatic Carriers (ACs). The expression values of multiple mRNAs and miRNAs were used as the features. Afterward, the reliable miRNA-mRNA interactions for each subtype were identified through exploring the experimentally validated-target genes of miRNAs. Results The results revealed that miR-21 and its interactions with DAAM1 and E2F2 in acute, SMAD7 in chronic, MYEF2 and PARP1 in smoldering subtypes could significantly classify the diverse subtypes. Conclusions Considering the high accuracy of the constructed model, the identified mRNAs and miRNA are proposed as the potential therapeutic targets and the prognostic biomarkers for various ATLL subtypes. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09540-1.
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Affiliation(s)
- Mohadeseh Zarei Ghobadi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - Rahman Emamzadeh
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
| | - Elaheh Afsaneh
- Department of Physics, University of Isfahan, Hezar Jarib, Isfahan, 81746, Iran
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Lin X, Wu W, Ying Y, Luo J, Xu X, Zheng L, Wu W, Yang S, Zhao S. MicroRNA-31: a pivotal oncogenic factor in oral squamous cell carcinoma. Cell Death Dis 2022; 8:140. [PMID: 35351880 PMCID: PMC8964740 DOI: 10.1038/s41420-022-00948-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/25/2022] [Accepted: 03/15/2022] [Indexed: 11/09/2022]
Abstract
Oral squamous cell carcinoma (OSCC) continuously constitutes a major challenge for treatment and prognosis due to approximately half of treated OSCC patients dying from locoregional recurrences and distant metastases. MicroRNA-31 (miR-31), an early mammalian miRNA identified, has been gaining importance in the field of OSCC research in recent years. This comprehensive review was conducted for the first time to summarize the current evidence on the association between miR-31 and OSCC. The vast majority of relevant studies (20/21, 95%) demonstrated that miR-31 was an oncogenic factor in the tumorigenesis and progression of OSCC. miR-31 expression is significantly upregulated in plasma, saliva, and tumor tissue of OSCC. miR-31 played an essential role in OSCC development by constituting a complex network with its targeted genes (e.g. RhoA, FIH, ACOX1, VEGF, SIRT3, LATS2, KANK1, and NUMB) and the signaling cascades (e.g. EGF-AKT signaling axis, ERK-MMP9 cascade, Hippo pathway, Wnt signaling, and MCT1/MCT4 regulatory cascade). This review highlights that miR-31 might function as a potential diagnostic, prognostic, and predictive biomarker for OSCC. Further studies are still warranted to better illuminate the clinicopathological features and the molecular mechanisms of miR-31-mediated OSCC development.
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Affiliation(s)
- Xiaojiao Lin
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Weizhou Wu
- Department of Urology, Maoming People's Hospital, Maoming, 525000, Guangdong, China
| | - Yukang Ying
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Jun Luo
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Xuhui Xu
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Linxia Zheng
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Weili Wu
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China
| | - Suqing Yang
- Department of Stomatology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Zhejiang, China.
| | - Shankun Zhao
- Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), 318000, Taizhou, Zhejiang, China.
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11
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Dashti F, Mirazimi SMA, Rabiei N, Fathazam R, Rabiei N, Piroozmand H, Vosough M, Rahimian N, Hamblin MR, Mirzaei H. The role of non-coding RNAs in chemotherapy for gastrointestinal cancers. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:892-926. [PMID: 34760336 PMCID: PMC8551789 DOI: 10.1016/j.omtn.2021.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gastrointestinal (GI) cancers, including colorectal, gastric, hepatic, esophageal, and pancreatic tumors, are responsible for large numbers of deaths around the world. Chemotherapy is the most common approach used to treat advanced GI cancer. However, chemoresistance has emerged as a critical challenge that prevents successful tumor elimination, leading to metastasis and recurrence. Chemoresistance mechanisms are complex, and many factors and pathways are involved. Among these factors, non-coding RNAs (ncRNAs) are critical regulators of GI tumor development and subsequently can induce resistance to chemotherapy. This occurs because ncRNAs can target multiple signaling pathways, affect downstream genes, and modulate proliferation, apoptosis, tumor cell migration, and autophagy. ncRNAs can also induce cancer stem cell features and affect the epithelial-mesenchymal transition. Thus, ncRNAs could possibly act as new targets in chemotherapy combinations to treat GI cancer and to predict treatment response.
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Affiliation(s)
- Fatemeh Dashti
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Seyed Mohammad Ali Mirazimi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Nikta Rabiei
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Fathazam
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negin Rabiei
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Haleh Piroozmand
- Faculty of Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Massoud Vosough
- Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Neda Rahimian
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
- Radiation Biology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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12
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Xu R, Liu T, Zuo L, Guo D, Ye G, Jiang J, Yu X, Zhang S, Hou C. The high expression of miR-31 in lung adenocarcinoma inhibits the malignancy of lung adenocarcinoma tumor stem cells. Biochem Biophys Rep 2021; 28:101122. [PMID: 34485716 PMCID: PMC8408630 DOI: 10.1016/j.bbrep.2021.101122] [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: 07/19/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/17/2022] Open
Abstract
Therapies for lung adenocarcinoma (LUAD) are mainly limited by drug resistance, metastasis or recurrence related to cancer stem cells (CSCs) with high proliferation and self-renewing. This research validated that miR-31 was over-expressed in LUAD by the analysis of generous clinical samples data. And the results of clinical data analysis showed that high expression of miR-31 was more common in patients with worse prognosis. The genes differentially expressed in LUAD tissues compared with normal tissues and A549CD133+ cells (LUAD CSCs) compared with A549 cells were separately screened from Gene Expression Profiling Interactive Analysis and GEO datasets. The target genes that may play a role in the regulation of lung adenocarcinoma was screened by comparison between the differential genes and the target genes of miR-31. The functional enrichment analysis of GO Biological Processes showed that the expression of target genes related to cell proliferation was increased, while the expression of target genes related to cell invasion and metastasis was decreased in LUAD tissues and A549CD133+ cells. The results suggested that miR-31 may have a significant inhibitory effect on the differentiation, invasion, metastasis and adhesion of LUAD CSCs, which was verified in vivo and in vitro experiments. Knock down of miR-31 accelerated xenograft tumor growth and liver metastasis in vivo. Likewise, the carcinogenicity, invasion and metastasis of A549CD133+ CSCs were promoted after miR-31 knockdown. The study validated that miR-31 was up regulated in LUAD and its expression may affect the survival time of patients with lung adenocarcinoma, which indicated that miR-31 may have potential value for diagnosis and prognosis of LUAD. However, the inhibitory effect of miR-31 on tumorigenesis, invasion and metastasis of lung adenocarcinoma CSCs suggested its complexity in the regulation of lung adenocarcinoma, which may be related to its extensive regulation of various target genes.
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Affiliation(s)
- Ran Xu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Tianhua Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Ling Zuo
- School of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Dongqing Guo
- School of Life Science, Beijing University of Chinese Medicine, Beijing, China
| | - Guancheng Ye
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jingjing Jiang
- School of the Humanities, Beijing University of Chinese Medicine, Beijing, China
| | - Xue Yu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shujing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Chunying Hou
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
- Corresponding author.
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13
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Li S, Yang X, Li W, Chen Z. Comprehensive Analysis of E2F Family Members in Human Gastric Cancer. Front Oncol 2021; 11:625257. [PMID: 34532281 PMCID: PMC8438234 DOI: 10.3389/fonc.2021.625257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 08/16/2021] [Indexed: 01/07/2023] Open
Abstract
Gastric cancer (GC) is the second most common cancer and the third most frequent cause of cancer-related deaths in China. E2Fs are a family of transcription factors reported to be involved in the tumor progression of various cancer types; however, the roles of individual E2Fs are still not known exactly in tumor progression of GC. In this study, we examined the expression of E2Fs to investigate their roles in tumor progression in GC patients using multiple databases, including ONCOMINE, GEPIA2, Kaplan-Meier plotter, cBioPortal, Metascape, LinkedOmics, GeneMANIA, STRING and UCSC Xena. We also performed real-time polymerase chain reaction (RT-PCR) to validate the expression levels of individual E2Fs in several GC cell lines. Our results demonstrated that the mRNA levels of E2F1/2/3/5/8 were significantly higher both in GC tissues and cell lines. The expression levels of E2F1 and E2F4 were correlated with poor overall survival (OS), decreased post-progression survival (PPS), and decreased progression-free survival (FP) in patients with GC. However, overexpression of E2F2, E2F5, E2F7 and E2F8 is significantly associated with disease-free survival and overall survival in patients with GC. In addition, higher E2F3 and E2F6 mRNA expression was found to increase GC patients' OS and PPS. 224 of 415 patients with STAD (54%) had gene mutations that were associated with longer disease-free survival (DFS) but not OS. Cell cycle pathway was closely associated with mRNA level of more than half of E2Fs (E2F1/2/3/7/8). There were close and complicated interactions among E2F family members. Finally, our results indicated the gene expressions of E2Fs had a positive relationship with its copy numbers. Taken together, E2F1/2/3/5/8 can serve as biomarkers for GC patients with high prognostic value for OS of GC patients or therapeutic targets for GC.
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Affiliation(s)
- Shengbo Li
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenqing Li
- Department of Hand and Foot Surgery, Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Yang Y, Xue J, Qin L, Zhang J, Liu J, Yu J. LncRNA NEAT1 Promotes Inflammatory Response in Sepsis via the miR-31-5p/POU2F1 Axis. Inflammation 2021; 44:1518-1528. [PMID: 33710444 PMCID: PMC8285354 DOI: 10.1007/s10753-021-01436-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/28/2021] [Accepted: 02/08/2021] [Indexed: 12/17/2022]
Abstract
Sepsis is considered to be a systemic inflammatory response, which results in organ dysfunction. LncRNA nuclear-enriched abundant transcript 1 (NEAT1) involved in sepsis progression has been reported. However, the underlying mechanism of NEAT1 in sepsis-induced inflammatory response remains to be revealed. In this study, NEAT1 and POU domain class 2 transcription factor 1 (POU2F1) were highly expressed in LPS-induced septic RAW264.7 cells, opposite to miR-31-5p expression. Furthermore, we found that NEAT1 silencing inhibited LPS-induced inflammatory response and cell proliferation, and promoted cell apoptosis. Subsequently, we found that miR-31-5p interacted with NEAT1 and targeted the 3'UTR of POU2F1, and in LPS-induced RAW264.7 cells, the inhibition of NEAT1 silencing was reversed by miR-31-5p knockdown, while POU2F1 downregulation could cover the functions of miR-31-5p knockdown. In a word, this study indicates that NEAT1 inhibits the LPS-induced progression of sepsis in RAW264.7 cells by modulating miR-31-5p/POU2F1 axis, suggesting that NEAT1 will be the potential therapeutic target for sepsis.
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Affiliation(s)
- Yang Yang
- Department of Trauma Center, Affiliated Hospital of Nantong University, No. 20, Xisi Road, Chongchuan District, Nantong, 226001, Jiangsu Province, China
| | - Jianhua Xue
- Department of Trauma Center, Affiliated Hospital of Nantong University, No. 20, Xisi Road, Chongchuan District, Nantong, 226001, Jiangsu Province, China
| | - Lili Qin
- Department of Endoscopic Center, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Jiaxuan Zhang
- Department of Trauma Center, Affiliated Hospital of Nantong University, No. 20, Xisi Road, Chongchuan District, Nantong, 226001, Jiangsu Province, China
| | - Jiajia Liu
- Department of Trauma Center, Affiliated Hospital of Nantong University, No. 20, Xisi Road, Chongchuan District, Nantong, 226001, Jiangsu Province, China.
| | - Junbo Yu
- Department of Trauma Center, Affiliated Hospital of Nantong University, No. 20, Xisi Road, Chongchuan District, Nantong, 226001, Jiangsu Province, China.
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15
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Liu X, Ma R, Yi B, Riker AI, Xi Y. MicroRNAs are involved in the development and progression of gastric cancer. Acta Pharmacol Sin 2021; 42:1018-1026. [PMID: 33037405 PMCID: PMC8208993 DOI: 10.1038/s41401-020-00540-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/14/2020] [Indexed: 02/08/2023] Open
Abstract
MicroRNAs (miRNAs) are recognized as an essential component of the RNA family, exerting multiple and intricate biological functions, particularly in the process of tumorigenesis, proliferation, and metastatic progression. MiRNAs are altered in gastric cancer (GC), showing activity as both tumor suppressors and oncogenes, although their true roles have not been fully understood. This review will focus upon the recent advances of miRNA studies related to the regulatory mechanisms of gastric tumor cell proliferation, apoptosis, and cell cycle. We hope to provide an in-depth insight into the mechanistic role of miRNAs in GC development and progression. In particular, we summarize the latest studies relevant to miRNAs' impact upon the epithelial-mesenchymal transition, tumor microenvironment, and chemoresistance in GC cells. We expect to elucidate the molecular mechanisms involving miRNAs for better understanding the etiology of GC, and facilitating the development of new treatment regimens for the treatment of GC.
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Affiliation(s)
- Xiaolin Liu
- Department of Genetics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
- Department of Oncology, the First Affiliated Hospital of Shandong First Medical University, Jinan, 250014, China
| | - Ruixia Ma
- Department of Genetics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, 221000, China
| | - Bin Yi
- Department of Genetics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Adam I Riker
- Geaton and JoAnn DeCesaris Cancer Institute, Department of Surgery, Anne Arundel Medical Center, Cancer Service Line, Luminis Health, Annapolis, MD, USA.
| | - Yaguang Xi
- Department of Genetics and Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA, USA.
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16
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Abstract
E2F transcription factor 2 (E2F2) is a member of the E2F family of transcription factors. The classical view is that some E2Fs act as "activators" and others "inhibitors" of cell cycle gene expression. However, the so-called "activator" E2F2 is particularly enigmatic, with seemingly contradictory roles in the cell cycle, proliferation, apoptosis, inflammation, and cell migration and invasion. How can we rationalize the apparently opposing functions of E2F2 in different situations? This is difficult because different methods of studying E2F2 have yielded conflicting results, so extrapolating mechanisms from an observed endpoint is challenging. This review will attempt to summarize and clarify these issues. This review focuses on genetic studies that have helped elucidate the biological functions of E2F2 and that have enhanced our understanding of how E2F2 is integrated into pathways controlling the cell cycle, proliferation, apoptosis, inflammation, and cell migration and invasion. This review will also discuss the function of E2F2 in cancer and other diseases. This review provides a strong basis for further research on the biological function and clinical potential of E2F2.
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Affiliation(s)
- Luwen Li
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University, Ji'nan, China.,Key Lab for Biotech-Drugs of National Health Commission, Ji'nan, China.,Key Lab for Rare & Uncommon Diseases of Shandong Province, Shandong First Medical University, Ji'nan, China
| | - Shiguan Wang
- Medical College, Shandong University, Ji'nan, China
| | - Yihang Zhang
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University, Ji'nan, China.,Key Lab for Biotech-Drugs of National Health Commission, Ji'nan, China.,Key Lab for Rare & Uncommon Diseases of Shandong Province, Shandong First Medical University, Ji'nan, China
| | - Jihong Pan
- Biomedical Sciences College & Shandong Medicinal Biotechnology Centre, Shandong First Medical University, Ji'nan, China.,Key Lab for Biotech-Drugs of National Health Commission, Ji'nan, China.,Key Lab for Rare & Uncommon Diseases of Shandong Province, Shandong First Medical University, Ji'nan, China
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17
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Li H, Zhao S, Shen L, Wang P, Liu S, Ma Y, Liang Z, Wang G, Lv J, Qiu W. E2F2 inhibition induces autophagy via the PI3K/Akt/mTOR pathway in gastric cancer. Aging (Albany NY) 2021; 13:13626-13643. [PMID: 34091441 PMCID: PMC8202834 DOI: 10.18632/aging.202891] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/14/2021] [Indexed: 12/24/2022]
Abstract
Background: E2F2 is a member of the E2F transcription factor family and has important but not fully understood biological functions in cancers. The biological role of E2F2 in gastric cancer (GC) also remains unclear. Methods: We examined the expression levels of E2F2 in GC using publicly available datasets such as TIMER, Oncomine, GEPIA, UALCAN, etc., and in our patient cohort, using quantitative real-time PCR, western blotting, and immunohistochemistry. We further investigated the effects of E2F2 on phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling, autophagy, and the migration and invasion of GC cells by the wound healing assay, Transwell assay and transmission electron microscopy. Results: E2F2 was highly expressed in both GC tissues and cells compared with normal gastric tissues/cells. High E2F2 expression was associated with poor overall survival (OS). In addition, the expression of E2F2 in GC was strongly correlated with a variety of immune markers. E2F2 overexpression promoted the migration and invasiveness of GC cells in vitro through inhibition of PI3K/Akt/mTOR-mediated autophagy. Conclusion: High E2F2 expression was associated with the characteristics of invasive tumors and poor prognosis. E2F2 also had potential modulatory effects on tumor immunity. We discovered a novel function of E2F2 in the regulation of PI3K/Akt/mTOR-mediated autophagy and the downstream processes of cell migration and invasion.
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Affiliation(s)
- Hui Li
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Shufen Zhao
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Liwei Shen
- Department of Oncology, Qingdao Women and Children's Hospital, Qingdao, Shandong, China
| | - Peige Wang
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Shihai Liu
- Central Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yingji Ma
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhiwei Liang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Gongjun Wang
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jing Lv
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wensheng Qiu
- Department of Oncology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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18
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Yuan S, He G, Li L. Hsa-miR-155 regulates the cell cycle and barrier function of corneal endothelial cells through E2F2. Am J Transl Res 2021; 13:1505-1515. [PMID: 33841674 PMCID: PMC8014374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
This study was aimed to determine the role of has-miR-155 and E2F2 on corneal endothelial cells. Real-time quantitative PCR and Western blot assays were carried out to determine the levels of has-miR-155 and E2F2, and Flow cytometry assay was conducted to detect cell cycle. In addition, Targetscan7.2 was adopted to analyze the internal connection between hsa-miR-155 and E2F2, and a dual luciferase reporter gene assay to determine predicted site between has-miR-155 and E2F2. Increased hsa-miR-155 resulted in decreased E2F2, while decreased hsa-miR-155 increased the level of E2F2. In addition, both increased hsa-miR-155 and decreased E2F2 led to an increase in S-phase cells and a decrease in G1-phase cells. Also, they induced an increase in the activity of barrier-related proteins MLCK and ZO-1, an up-regulation of Cyclin D1 and Cyclin E1, and a down-regulation of apoptosis proteins (Caspase 3/Bax/Bim/Bid) whereas decreased hsa-miR-155 led to an opposite change in cells, and decreased E2F2 could offset cell changes caused by increased has-miR-155. In conclusion, Has-miR-155 regulates the cell cycle of corneal endothelial cells and improves their barrier function by down regulating E2F2.
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Affiliation(s)
- Shuyi Yuan
- Department of Optometry Center, Tianjin Eye HospitalTianjin 300022, China
| | - Guanghui He
- Department of Vitreoretinopathy, Tianjin Eye HospitalTianjin 300022, China
| | - Lihua Li
- Department of Optometry Center, Tianjin Eye HospitalTianjin 300022, China
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19
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Zeng Z, Cao Z, Tang Y. Increased E2F2 predicts poor prognosis in patients with HCC based on TCGA data. BMC Cancer 2020; 20:1037. [PMID: 33115417 PMCID: PMC7594443 DOI: 10.1186/s12885-020-07529-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Background The E2F family of transcription factor 2 (E2F2) plays an important role in the development and progression of various tumors, but its association with hepatocellular carcinoma (HCC) remains unknown. Our study aimed to investigate the role and clinical significance of E2F2 in HCC. Methods HCC raw data were extracted from The Cancer Genome Atlas (TCGA). Wilcoxon signed-rank test, Kruskal-Wallis test and logistic regression were applied to analyze the relationship between the expression of E2F2 and clinicopathologic characteristics. Cox regression and Kaplan-Meier were employed to evaluate the correlation between clinicopathologic features and survival. The biological function of E2F2 was annotated by Gene Set Enrichment Analysis (GSEA). Results The expression of E2F2 was increased in HCC samples. The expression of elevated E2F2 in HCC samples was prominently correlated with histologic grade (OR = 2.62 for G3–4 vs. G1–2, p = 1.80E-05), clinical stage (OR = 1.74 for III-IV vs. I-II, p = 0.03), T (OR = 1.64 for T3–4 vs.T1–2, p = 0.04), tumor status (OR = 1.88 for with tumor vs. tumor free, p = 3.79E-03), plasma alpha fetoprotein (AFP) value (OR = 3.18 for AFP ≥ 400 vs AFP<20, p = 2.16E-04; OR = 2.50 for 20 ≤ AFP<400 vs AFP<20, p = 2.56E-03). Increased E2F2 had an unfavorable OS (p = 7.468e− 05), PFI (p = 3.183e− 05), DFI (p = 0.001), DSS (p = 4.172e− 05). Elevated E2F2 was independently bound up with OS (p = 0.004, hazard ratio [HR] = 2.4 (95% CI [1.3–4.2])), DFI (P = 0.029, hazard ratio [HR] = 2.0 (95% CI [1.1–3.7])) and PFI (P = 0.005, hazard ratio [HR] = 2.2 (95% CI [1.3–3.9])). GSEA disclosed that cell circle, RNA degradation, pyrimidine metabolism, base excision repair, aminoacyl tRNA biosynthesis, DNA replication, p53 signaling pathway, nucleotide excision repair, ubiquitin-mediated proteolysis, citrate cycle TCA cycle were notably enriched in E2F2 high expression phenotype. Conclusions Elevated E2F2 can be a promising independent prognostic biomarker and therapeutic target for HCC. Additionally, cell cycle, pyrimidine metabolism, DNA replication, p53 signaling pathway, ubiquitin-mediated proteolysis, the citrate cycle TCA cycle may be the key pathway by which E2F2 participates in the initial and progression of HCC.
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Affiliation(s)
- Zhili Zeng
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong, China
| | - Zebiao Cao
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, Guangdong, China
| | - Ying Tang
- Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, no.12, Airport Road, Sanyuanli Street, Baiyun District, Guangzhou, 510405, Guangdong, China.
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20
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MicroRNA-31 Regulates Expression of Wntless in Both Drosophila melanogaster and Human Oral Cancer Cells. Int J Mol Sci 2020; 21:ijms21197232. [PMID: 33007980 PMCID: PMC7582764 DOI: 10.3390/ijms21197232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 12/27/2022] Open
Abstract
Recent comparative studies have indicated distinct expression profiles of short, non-coding microRNAs (miRNAs) in various types of cancer, including oral squamous cell carcinoma (OSCC). In this study, we employed a hybrid approach using Drosophila melanogaster as well as OSCC cell lines to validate putative targets of oral cancer-related miRNAs both in vivo and in vitro. Following overexpression of Drosophila miR-31, we found a significant decrease in the size of the imaginal wing discs and downregulation of a subset of putative targets, including wntless (wls), an important regulator of the Wnt signaling pathway. Parallel experiments performed in OSCC cells have also confirmed a similar miR-31-dependent regulation of human WLS that was not initially predicted as targets of human miR-31. Furthermore, we found subsequent downregulation of cyclin D1 and c-MYC, two of the main transcriptional targets of Wnt signaling, suggesting a potential role of miR-31 in regulating the cell cycle and proliferation of OSCC cells. Taken together, our Drosophila-based in vivo system in conjunction with the human in vitro platform will thus provide a novel insight into a mammal-to-Drosophila-to-mammal approach to validate putative targets of human miRNA and to better understand the miRNA-target relationships that play an important role in the pathophysiology of oral cancer.
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Ma H, Cao W, Ding M. MicroRNA-31 weakens cisplatin resistance of medulloblastoma cells via NF-κB and PI3K/AKT pathways. Biofactors 2020; 46:831-838. [PMID: 32027070 DOI: 10.1002/biof.1616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 01/10/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Medulloblastoma (MB) is a malignant intracranial tumor. Cisplatin is a broad-spectrum antitumor drug. It is important to study the cisplatin resistance of MB cells for the treatment of MB. In this article, we preliminarily studied the cisplatin resistance of microRNA (miR)-31 and the possible mechanism in DAOY and UW228 cells, laying a theoretical foundation for clinical treatment of MB. METHODS Following anti-miR-31 and pre-miR-31 transfections, cell viability, BrdU, CyclinD1, and apoptosis levels of DAOY and UW228 cell were detected by CCK8, BrdU, and western blot. Meanwhile, migration, invasion, and western blot assay were respectively used to detect the functions of miR-31 migration and invasion. miR-31 levels were changed by cell transfection and detected by RT-qPCR. Furthermore, the related-proteins of pathways were also detected by western blot. RESULTS Anti-miR-31 increased DAOY and UW228 cells viability, BrdU+ numbers, and expression of CyclinD1. The migration/invasion rate and expression levels of MMP-9 and vimentin after anti-miR-31 transfection were increased. Furthermore, anti-miR-31 enhanced cells' cisplatin resistance and triggered PI3K/AKT and NF-κB pathways. Pre-miR-31 played opposite roles and promoted the apoptosis. CONCLUSION miR-31 regulated cell growth, migration, invasion and cisplatin resistance of MB cells via PI3K/AKT and NF-κB pathways.
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Affiliation(s)
- Hui Ma
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, China
| | - Wei Cao
- Department of Neurosurgery, Jining No. 1 People's Hospital, Jining, China
| | - Meili Ding
- Department of Pediatrics, Jining No. 1 People's Hospital, Jining, China
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22
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Liu X, Hu C. Novel Potential Therapeutic Target for E2F1 and Prognostic Factors of E2F1/2/3/5/7/8 in Human Gastric Cancer. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 18:824-838. [PMID: 32953933 PMCID: PMC7479313 DOI: 10.1016/j.omtm.2020.07.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 07/28/2020] [Indexed: 12/27/2022]
Abstract
E2F transcription factors (E2Fs) were found to be related with cell activities and disease progression among a variety of different tumors, including regulating cell division and cell proliferation. In the analysis, it aimed to focus on transcriptional and survival information of E2Fs in gastric cancer (GC) from Gene Expression Profiling Interactive Analysis (GEPIA), Kaplan-Meier plotter, cBioPortal, Database for Annotation, Visualization and Integrated Discovery (DAVID), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway, and Oncomine databases. It was found that the expression of E2F1/2/3/5/7/8 in GC tissues was obviously higher than the normal. Of interest, none of the E2Fs was related with pathological stages. Nevertheless, high expression of E2F2/3/5/7/8 was related with better survival data, except E2F6 regarding shorter first-progression (FP) survival. High expression levels of E2F2/5/7/8 have significant correlations with overall survival (OS) in patients with intestinal and diffuse GC, and this prognostic value is not affected by gender. Oppositely, the lower level of E2F1/4 illustrated superior survival data. Moreover, increased expression of E2F1 in GC tissues might play an important role in the development of GC. Collectively, E2F1 could be a potential therapeutic target for patients with GC. E2F1/2/3/5/7/8 might be original prognostic predictors of GC.
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Affiliation(s)
- Xuhong Liu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Chunhong Hu
- Department of Oncology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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MicroRNAs as Potential Biomarkers for Chemoresistance in Adenocarcinomas of the Esophagogastric Junction. JOURNAL OF ONCOLOGY 2019; 2019:4903152. [PMID: 31467538 PMCID: PMC6701342 DOI: 10.1155/2019/4903152] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022]
Abstract
Concerning adenocarcinomas of the esophagogastric junction, neoadjuvant chemotherapy is regularly implemented, but patients' response varies greatly, with some cases showing no therapeutic effect, being deemed as chemoresistant. Small, noncoding RNAs (miRNAs) have evolved as key players in biological processes, including malignant diseases, often promoting tumor growth and expansion. In addition, specific miRNAs have been implicated in the development of chemoresistance through evasion of apoptosis, cell cycle alterations, and drug target modification. We performed a retrospective study of 33 patients receiving neoadjuvant chemotherapy by measuring their miRNA expression profiles. Histologic tumor regression was evaluated using resection specimens, while miRNA profiles were prepared using preoperative biopsies without prior therapy. A preselected panel of 96 miRNAs, known to be of importance in various malignancies, was used to test for significant differences between responsive (chemosensitive) and nonresponsive (chemoresistant) cases. The cohort consisted of 12 nonresponsive and 21 responsive cases with the following 4 miRNAs differentially expressed between both the groups: hsa-let-7f-5p, hsa-miRNA-221-3p, hsa-miRNA-31-5p, and hsa-miRNA-191-5p. The former 3 showed upregulation in chemoresistant cases, while the latter showed upregulation in chemosensitive cases. In addition, significant correlation between high expression of hsa-miRNA-194-5p and prolonged survival could be demonstrated (p value <0.0001). In conclusion, we identified a panel of 3 miRNAs predicting chemoresistance and a single miRNA contributing to chemosensitivity. These miRNAs might function as prognostic biomarkers and enable clinicians to better predict the effect of one or more reliably select patients benefitting from (neoadjuvant) chemotherapy.
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Li M, Guan H, Liu Y, Gan X. LncRNA ZEB1-AS1 reduces liver cancer cell proliferation by targeting miR-365a-3p. Exp Ther Med 2019; 17:3539-3547. [PMID: 30988735 PMCID: PMC6447761 DOI: 10.3892/etm.2019.7358] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 11/01/2018] [Indexed: 12/19/2022] Open
Abstract
Liver carcinoma is one of the most common malignancies worldwide. Previous studies have demonstrated that long non-coding RNAs (lncRNAs) are crucial mediators that participate in a wide range of molecular processes associated with carcinogenesis. However, little is known about the specific mechanisms that underlie the majority of lncRNAs. Many studies have indicated that lncRNAs affect microRNA (miRNA or miR) activities via physical base-paired binding, therefore serving as competing endogenous RNAs (ceRNAs) that indirectly regulate the expression of miRNA targets. In the current study, it was revealed that lncRNA zinc-finger E-box binding homeobox 1 antisense 1 (ZEB1-AS1) serves as a ceRNA for miR-365a-3p, functioning to positively modulate E2F transcription factor 2 (E2F2) expression in liver cancer cells. Additionally, reverse transcription-quantitative polymerase chain reaction demonstrated that levels of ZEB1-AS1 were abnormally upregulated in liver cancer and this was positively correlated with E2F2 expression. Furthermore, high levels of ZEB1-AS1 exhibited a trend for poor survival in patients with liver cancer. Western blot analysis demonstrated that ZEB1-AS1 silencing could reduce E2F2 expression. EdU staining and flow cytometry analysis indicated that downregulation of ZEB1-AS1 could suppress cell proliferation and decrease the S phase proportion of liver cancer cells, which was effectively reversed by the inhibition of miR-365a-3p. ZEB1-AS1 was also determined to be physically associated with miR-365a-3p, while miR-365a-3p was revealed to target the E2F2 3′UTR for degradation or translational repression. The results also demonstrated that ZEB1-AS1 positively regulates E2F2 expression by competitively binding to miR-365a-3p. It was further revealed to enhance liver cancer cell proliferation. Thus, these results indicate that ZEB1-AS1 is required for liver cancer progression in a ceRNA dependent manner. ZEB1-AS1 may therefore be a potential target for liver cancer intervention.
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Affiliation(s)
- Mingfei Li
- Department of Hepatobiliary Surgery, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Hua Guan
- Health Management Centre, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yuping Liu
- Health Management Centre, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Xianfeng Gan
- Department of Hepatobiliary Surgery, Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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25
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Sun KK, Shen XJ, Yang D, Gan MQ, Liu G, Zhang YF, Hua P, Wang HD, Wu XY. MicroRNA-31 triggers G 2/M cell cycle arrest, enhances the chemosensitivity and inhibits migration and invasion of human gastric cancer cells by downregulating the expression of zeste homolog 2 (ZH2). Arch Biochem Biophys 2019; 663:269-275. [PMID: 30677405 DOI: 10.1016/j.abb.2019.01.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/31/2018] [Accepted: 01/20/2019] [Indexed: 01/08/2023]
Abstract
Gastric cancer is the second most leading cause of cancer related mortality across the world over. Although the incidence of GC has declined to some extent but it is still the fourth highly diagnosed cancer across the world. GC generally remains undiagnosed till advanced stages due to unavailability of biomarkers and when diagnosed it becomes difficult to manage due to the lack of therapeutic targets and efficient chemotherapy. There are concrete evidences suggesting that miRNAs may prove important therapeutic targets for the treatment of devastating diseases such as cancer. The study was designed to investigate the tumor suppressive role of miR-31 via regulation of zeste homolog 2 (ZH2). It was found that miR-31 is significantly downregulated in GC cell lines. Overexpression of miR-31 causes significant (P < 0.05) decrease in the viability and colony formation via initiation of G2/M cell cycle arrest of the AGS cancer cells. Moreover, miR-31 overexpression also enhanced the chemosensitivity of miR-31 to the anticancer drug 5-fluorouracil. In silico analysis together with dual luciferase reporter assay indicated zeste homolog 2 (ZH2) to be the potential target of miR-31 in AGS cells. Investigation of ZH2 expression in GC cell lines showed it to be significantly (P < 0.05) upregulated. Nonetheless, overexpression of miR-31 in AGS cells resulted in the suppression of ZH2 expression. Additionally, silencing of ZH2 in the AGS cells also caused inhibition of AGS cell proliferation and colony formation via G2/M arrest. Moreover, overexpression of ZH2 could at least partially reverse the tumor suppressive effects of miR-31 indicating direct involvement of ZH2 in the miR-31 mediated inhibitory effects on AGS cell proliferation. Finally, miR-31 overexpression caused significant (P < 0.05) inhibition of the migration and invasion of the AGS gastric cancer cells. The overexpression of miR-31 also caused downregulation of mesenchymal markers (Vimentin and N-cadherin) and upregulation of epithelial marker (E-cadherin) protein expression was in AGS cells. It is therefore concluded that miR-31 acts as a tumor suppressor and may prove essential in the treatment of GC.
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Affiliation(s)
- Ke-Kang Sun
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Xiao-Jun Shen
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Dong Yang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Ming-Qiang Gan
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Gang Liu
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Yi-Fan Zhang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Peng Hua
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Hao-Dong Wang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Xiao-Yang Wu
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China.
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Pomatto MAC, Bussolati B, D'Antico S, Ghiotto S, Tetta C, Brizzi MF, Camussi G. Improved Loading of Plasma-Derived Extracellular Vesicles to Encapsulate Antitumor miRNAs. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 13:133-144. [PMID: 30788382 PMCID: PMC6370572 DOI: 10.1016/j.omtm.2019.01.001] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 01/03/2019] [Indexed: 12/26/2022]
Abstract
Extracellular vesicles (EVs) carry various molecules involved in intercellular communication and have raised great interest as drug delivery systems. Several engineering methods have been investigated for vesicle loading. Here, we studied the electroporation of EVs isolated from plasma to load antitumor microRNAs (miRNAs). First, we optimized the transfection protocol using miRNA cel-39 by evaluating different parameters (voltage and pulse) for their effect on vesicle morphology, loading capacity, and miRNA transfer to target cells. When compared with direct incubation of EVs with miRNA, mild electroporation allowed more efficient loading and better protection of miRNA from RNase degradation. Moreover, electroporation preserved the naive vesicle cargo, including RNAs and proteins, and their ability to be taken up by target cells, supporting the absence of vesicle damage. EVs engineered with antitumor miRNAs (miR-31 and miR-451a) successfully promoted apoptosis of the HepG2 hepatocellular carcinoma cell line, silencing target genes involved in anti-apoptotic pathways. Our findings indicate an efficient and functional miRNA encapsulation in plasma-derived EVs following an electroporation protocol that preserves EV integrity.
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Affiliation(s)
| | - Benedetta Bussolati
- Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy
| | - Sergio D'Antico
- Blood Bank, A.O.U. Città della Salute e della Scienza, 10126 Turin, Italy
| | - Sara Ghiotto
- Blood Bank, A.O.U. Città della Salute e della Scienza, 10126 Turin, Italy
| | | | | | - Giovanni Camussi
- Department of Medical Sciences, University of Turin, 10126 Turin, Italy.,2i3T Scarl, Univerity of Turin, 10126 Turin, Italy
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27
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Li Y, Quan J, Chen F, Pan X, Zhuang C, Xiong T, Zhuang C, Li J, Huang X, Ye J, Zhang F, Zhang Z, Gui Y. MiR-31-5p acts as a tumor suppressor in renal cell carcinoma by targeting cyclin-dependent kinase 1 (CDK1). Biomed Pharmacother 2018; 111:517-526. [PMID: 30597305 DOI: 10.1016/j.biopha.2018.12.102] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/18/2018] [Accepted: 12/23/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Renal cell carcinoma (RCC) accounts for more than 90% of cancers in the kidney. RCC is often asymptomatic, as a result people with RCC generally have advanced disease by the time it is discovered and has a poor prognosis compared to other cancers. Therefore, it is necessary to explore its pathogenesis and identify some reliable prognostic biomarker of RCC. miRNAs are emerging as important players in the development and progression of RCC. miR-31-5p has been reported to act as a tumor suppressor in hepatocellular carcinoma (HCC). The aim of this study is to determine the detailed molecular mechanism of miR-31-5p in the progression of RCC and to investigate its potential clinical value. METHODS In this study, RT-qPCR, EdU assay, CCK-8 assay, wound scratch assay, transwell assay, flow cytometry assay and cell cycle assay were performed to detect miR-31-5p expression and its functions in RCC. Moreover, 42 formalin-fixed paraffin-embedded (FFPE) RCC samples were used to analyze the relationship between miR-31-5p expression and patients' overall survival. Finally, luciferase reporter assay, RT-qPCR assay and western blot were used to explore the association between miR-31-5p and its potential targets. RESULTS miR-31-5p was significantly down-regulated in RCC tissues and RCC cell lines compared with paired adjacent normal tissues and normal cell lines. miR-31-5p downregulation was associated with poor prognosis in RCC patients. Overexpression of miR-31-5p inhibited RCC cell proliferation, migration and invasion and cell cycle. Conversely, down-regulation of miR-31-5p promoted cell proliferation, migration and invasion. Furthermore, cyclin-dependent kinasec1 (CDK1), a key player in cell cycle regulation, was identified as a functional target of miR-31-5p. CONCLUSIONS Our results suggest that miR-31-5p serves as a tumor suppressor in RCC and is expected to be a molecular biomarker for poor prognosis of RCC.
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Affiliation(s)
- Yawen Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Jing Quan
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Fangfang Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Xiang Pan
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Changshui Zhuang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Tiefu Xiong
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Chengle Zhuang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Jianfa Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Xinbo Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Jing Ye
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Fangting Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China
| | - Zeng Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China.
| | - Yaoting Gui
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Clinical College of Anhui Medical University, Shenzhen, 518036, China.
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28
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Yu T, Ma P, Wu D, Shu Y, Gao W. Functions and mechanisms of microRNA-31 in human cancers. Biomed Pharmacother 2018; 108:1162-1169. [PMID: 30372817 DOI: 10.1016/j.biopha.2018.09.132] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/20/2018] [Accepted: 09/24/2018] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs can exhibit opposite functions in different tumors. MiR-31 is a representative example as it can not only enhance tumor development and progression in pancreatic cancer, colorectal cancer and so on, but also inhibit tumorigenesis and induce apoptosis in ovarian cancer, prostate cancer and etc. The mechanism underlying its' pleiotropy remains unknown. Several recent studies that focused on the global gene expression changes caused by aberrant miR-31 provided information on the upstream and downstream events associated with deregulated miR-31. MiR-31 might interact with a number of signaling pathways including RAS/MARK, PI3K/AKT and RB/E2F to play its opposite functions. This review summarizes the target genes and pathways associated with miR-31 and examines the mechanisms underlying the function of miR-31. The resulting hypothesis is possible that the tissue-specific features of adenocarcinoma and squamous cell cancer and the positive feedback loop consists of miR-31 and its upstream and downstream may account for the diversity of miR-31 functions.
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Affiliation(s)
- Tao Yu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Pei Ma
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Deqin Wu
- Department of Pharmacy, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yongqian Shu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Wen Gao
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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29
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Wang LL, Li HX, Yang YY, Su YL, Lian JS, Li T, Xu J, Wang XN, Jin N, Liu XF. MiR-31 is a potential biomarker for diagnosis of head and neck squamous cell carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:4339-4345. [PMID: 31949830 PMCID: PMC6962945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 03/13/2018] [Indexed: 06/10/2023]
Abstract
MicroRNAs (miRNAs) play important roles in the development of head and neck squamous cell carcinoma (HNSCC). However, their potential clinical value as biomarkers remains poorly known. The aim of this study was to assess the association between tissue/serum miR-31 expression levels and prognosis of HNSCC. In this clinical study, tumor samples were obtained from 118 patients with HNSCC and 48 patients with oral epithelial dysplasia, and blood samples were collected from all the HNSCC cases and 60 normal controls. The expression levels of tissue/serum miR-31 were measured by real-time PCR. Chi-square test was used to evaluate the correlation between tissue/serum miR-31 and clinical parameters of HNSCC. Survival curves were constructed using the Kaplan-Meier method and log-rank test. Multivariate Cox regression analyses were used to estimate independent predictors of survival for HNSCC. Our findings showed that tissue miR-31 levels in HNSCC tumor specimens exhibited higher than that in oral epithelial dysplasia samples and normal tissues. Oral epithelial dysplasia with higher expression of miR-31 was more prone to progress into HNSCC. Likewise, serum miR-31 expression in HNSCC patients was markedly increased in compared to normal controls. Moreover, serum miR-31 performed well to distinguish HNSCC subjects from controls. In addition, increased tissue/serum miR-31 expression was positively correlated with poor clinical variables and dismal prognosis. Finally, tissue miR-31 was confirmed to be an independent prognostic factor for HNSCC. Taken together, miR-31 had strong potential as a promising biomarker in HNSCC detection.
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Affiliation(s)
- Long-Long Wang
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Hai-Xia Li
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Yong-Yan Yang
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Ya-La Su
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Jin-Shan Lian
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Teng Li
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Jie Xu
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Xiao-Ning Wang
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Na Jin
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
| | - Xian-Feng Liu
- The Second Department of Head and Neck Surgery, Baotou Cancer Hospital, The Affiliated Cancer Hospital of Baotou Medical College Baotou 014030, Inner Mongolia, China
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Zhou X, Tao H. Overexpression of microRNA-936 suppresses non-small cell lung cancer cell proliferation and invasion via targeting E2F2. Exp Ther Med 2018; 16:2696-2702. [PMID: 30210611 DOI: 10.3892/etm.2018.6490] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/08/2018] [Indexed: 02/06/2023] Open
Abstract
MicroRNA (miR)-936 has been reported to inhibit the cell cycle and glioma cell proliferation. However, the roles of miR-936 in other human tumors remain largely unknown. In the present study, it was indicated that miR-936 was significantly downregulated in non-small cell lung cancer (NSCLC) tissues compared with adjacent normal tissues by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Results also indicated that miR-936 was downregulated in NSCLC cell lines compared with 16HBE cells. Furthermore, it was demonstrated that overexpression of miR-936 significantly inhibited the proliferation, cell cycle progression and invasion of NSCLC cells. Notably, E2F2 was identified as a target gene of miR-936 in NSCLC cells. The results indicated that E2F2 was upregulated in NSCLC tissues and cell lines, and its expression was negatively correlated with that of miR-936 in NSCLC tissues. Overexpression of miR-936 significantly reduced the protein expression levels of E2F2 in NSCLC cells. Furthermore, restoration of E2F2 rescued the proliferation and invasion of NSCLC cells transfected with miR-936 mimics. To the best of our knowledge, the present findings demonstrated for the first time that miR-936 suppressed NSCLC progression by directly targeting E2F2.
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Affiliation(s)
- Xiao Zhou
- Department of Thoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
| | - Hui Tao
- Department of Thoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui 230601, P.R. China
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31
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Yang S, Wang J, Ge W, Jiang Y. Long non-coding RNA LOC554202 promotes laryngeal squamous cell carcinoma progression through regulating miR-31. J Cell Biochem 2018; 119:6953-6960. [PMID: 29737563 DOI: 10.1002/jcb.26902] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 03/28/2018] [Indexed: 12/25/2022]
Abstract
Laryngeal squamous cell carcinoma (LSCC) is one aggressive malignancy and accounts for 20% of all head and neck cancer. However, the role of LOC554202 in human LSCC remains unknown. The expression level of LOC554202 and miR-31 was detected in the LSCC tiussues by using qRT-PCR. Cell growth was measured by CCK-8 assay. Flow cytometry and matrigel-coated membrane was used to detect for cell cycle and invasion respectively. We indicated that lncRNA LOC554202 expression was overexpressed in LSCC tissues compared with the paired adjacent samples and higher LOC554202 expression was associated with the advanced stage. In addition, we demonstrated that the expression level of miR-31 was downregulated in LSCC tissues compared to the paired adjacent samples and lower miR-31 expression was correlated with the advanced stage. Moreover, the expression of miR-31 was negatively correlated with the expression of LOC554202 in LSCC tissues. Ectopic expression of LOC554202 promoted LSCC cell growth, cell cyle and cell invasion and overexpression of miR-31 inhibited LSCC cell growth, cell cyle and cell invasion. Elevated expression of LOC554202 suppressed miR-31 expression and promoted RhoA expression in LSCC cell, which was a direct target gene of miR-31. Furthermore, LOC554202 increased LSCC cell growth, cell cyle and cell invasion through suppressing miR-31 expression. These results suggested that LOC554202 acted as an oncogene in the development of LSCC.
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Affiliation(s)
- Shujuan Yang
- Department of Otolaryngology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Jing Wang
- Department of Otolaryngology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Wensheng Ge
- Department of Otolaryngology, Liaocheng People's Hospital, Liaocheng, Shandong, China
| | - Yanfang Jiang
- Genetic Diagnosis Center, The First Hospital of Jilin University, Changchun, China
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Ma Y, Chen Y, Lin J, Liu Y, Luo K, Cao Y, Wang T, Jin H, Su Z, Wu H, Chen X, Cheng J. Circulating miR-31 as an effective biomarker for detection and prognosis of human cancer: a meta-analysis. Oncotarget 2018; 8:28660-28671. [PMID: 28404921 PMCID: PMC5438681 DOI: 10.18632/oncotarget.15638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 01/29/2017] [Indexed: 12/26/2022] Open
Abstract
PURPOSE Circulating miR-31 was found to be associated with cancers detection and prognosis. The present meta-analysis aimed to explore the effect of circulating miR-31 on cancer detection and prognosis. METHOD The studies were accessed using multiple databases. RevMan5.3, Meta-DiSc 1.4, and STATA14.0 were used to estimate the pooled effects, heterogeneity among studies, and publication bias. RESULTS A total of 14 studies with 1397 cancer patients and 1039 controls were included. For the 12 prognostic tests, the adjusted pooled-AUC was 0.79 (95% CI: 0.73-0.86) as the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odd ratio (DOR) from 10 tests was 0.79 (95% CI: 0.76-0.82), 0.79 (95% CI: 0.76-0.82), 3.81 (95% CI: 2.90-5.01), 0.26 (95% CI: 0.20-0.35), and 16.81 (95% CI: 9.67-29.25), respectively. For the 5 prognosis analyses, the pooled HR (hazard ratio) of overall survival (OS) was 1.55 (95% CI 1.30-1.86) for high versus low circulating miR-31 expression. However, high expression of circulating miR-31 did not significantly increase the risk of poor differentiation (pooled OR=1.39, 95% CI: 0.56-3.47) and LNM (pooled OR=3.46, 95% CI: 0.96-12.42) in lung cancer. CONCLUSION Circulating miR-31 is an effective biomarker and could be used as a component of miRs signature for cancer detection and prognosis surveillance.
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Affiliation(s)
- Yingjun Ma
- Respiratory Medicine, Guangming District People's Hospital of Shenzhen, Shenzhen, P.R. China
| | - Yunfang Chen
- Pain Department, The Eight Affiliated Hospital, Sun Yat-sen University, ShenZhen, P.R. China
| | - Jinbo Lin
- Medical oncology, Longgang District Central Hospital of Shenzhen, Shenzhen, P.R. China
| | - Yi Liu
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Kai Luo
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, P.R. China
| | - Yong Cao
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Tieqiang Wang
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Hongwei Jin
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Zhan Su
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Haolin Wu
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Xiaoliang Chen
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Jinquan Cheng
- Molecular Biology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, P.R. China
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Chen L, Huang X, Chen X. miR-365 Suppresses Cholangiocarcinoma Cell Proliferation and Induces Apoptosis by Targeting E2F2. Oncol Res 2018; 26:1375-1382. [PMID: 29471889 PMCID: PMC7844787 DOI: 10.3727/096504018x15188352857437] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cholangiocarcinoma (CCA) is one of the most malignant adenocarcinomas arising from bile duct epithelial cells. However, the molecular mechanism regulating CCA development and progression still needs to be investigated. Here we found that miR-365 was downregulated in CCA tissues compared with adjacent normal tissues. By functional experiments, we found that overexpression of miR-365 significantly inhibited CCA cell proliferation and promoted cellular apoptosis in vitro. Furthermore, administration with miR-365 markedly suppressed the growth of tumor tissues in vivo. Mechanistically, we identified E2F2 as the target gene of miR-365 in CCA cells. We found that overexpression significantly inhibited the expression of E2F2 in CCA cells, and there was an inverse correlation between the expression levels of E2F2 and miR-365 in CCA tissues. We also found that E2F2 was highly expressed in CCA tissues and cell lines. Restoration of E2F2 in miR-365-overexpressing CCA cells promoted cell viability and reduced cellular apoptosis in CCA. Collectively, our study demonstrated the essential role of miR-365 and its functional mechanism in CCA cells, which provided a new insight on the design of therapeutic targets for CCA treatment.
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Affiliation(s)
- Lunjian Chen
- Department of Hepatobiliary Surgery, The Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, P.R. China
| | - Xiaorong Huang
- Otorhinolaryngology Center, The Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, P.R. China
| | - Xinxin Chen
- Department of Preventive Health Care, First Affiliated Hospital of Medical College of Shihezi University, Shihezi, P.R. China
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Lai YH, Liu H, Chiang WF, Chen TW, Chu LJ, Yu JS, Chen SJ, Chen HC, Tan BCM. MiR-31-5p-ACOX1 Axis Enhances Tumorigenic Fitness in Oral Squamous Cell Carcinoma Via the Promigratory Prostaglandin E2. Am J Cancer Res 2018; 8:486-504. [PMID: 29290822 PMCID: PMC5743562 DOI: 10.7150/thno.22059] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/24/2017] [Indexed: 02/07/2023] Open
Abstract
During neoplastic development, a multitude of changes in genome-encoded information are progressively selected to confer growth and survival advantages to tumor cells. microRNAs-mRNAs regulatory networks, given their role as a critical layer of robust gene expression control, are frequently altered in neoplasm. However, whether and how these gene perturbations impact metabolic homeostasis remains largely unresolved. Methods: Through targeted miRNA expression screening, we uncovered an oral squamous cell carcinoma (OSCC)-associated miRNAome, among which miR-31-5p was identified based on extent of up-regulation, functional impact on OSCC cell migration and invasion, and direct regulation of the rate-limiting enzyme in peroxisomal β-oxidation, ACOX1. Results: We further found that both miR-31-5p and ACOX1 underpin, in an antagonistic manner, the overall cellular lipidome profiles as well as the migratory and invasive abilities of OSCC cells. Interestingly, the extracellular levels of prostaglandin E2 (PGE2), a key substrate of ACOX1, were controlled by the miR-31-5p-ACOX1 axis, and were shown to positively influence the extent of cell motility in correlation with metastatic status. The promigratory effect of this metabolite was mediated by an elevation in EP1-ERK-MMP9 signaling. Of note, functional significance of this regulatory pathway was further corroborated by its clinicopathologically-correlated expression in OSCC patient specimens. Conclusions: Collectively, our findings outlined a model whereby misregulated miR-31-5p-ACOX1 axis in tumor alters lipid metabolomes, consequently eliciting an intracellular signaling change to enhance cell motility. Our clinical analysis also unveiled PGE2 as a viable salivary biomarker for prognosticating oral cancer progression, further underscoring the importance of lipid metabolism in tumorigenesis.
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MicroRNA-31 Function as a Suppressor Was Regulated by Epigenetic Mechanisms in Gastric Cancer. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5348490. [PMID: 29333444 PMCID: PMC5733238 DOI: 10.1155/2017/5348490] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/21/2017] [Accepted: 11/01/2017] [Indexed: 02/07/2023]
Abstract
Gastric cancer is one of the most lethal malignancies worldwide. The aberrant expression of microRNA-31 (miR-31) has been reported in gastric cancer; however, its regulation mechanisms are still unclear. Here, we confirmed that miR-31 expression was significantly decreased in gastric cancer tissue and cell lines. Ectopic expression of miR-31 potentially suppresses proliferation and induced early apoptosis in gastric cancer cells. Furthermore, miR-31 expression was regulated as a result of epigenetic mechanisms. The downregulation of miR-31 was associated with promoter DNA methylation status in gastric cancer and cell lines. Moreover, we found that HDAC2 was the direct target of miR-31 by binding to 3′-UTR from the results of luciferase reporter assays, qRT-PCR, and western blotting. HDAC2 played an activation role in tumor growth, whose expression is upregulated and inversely associated with miR-31 levels. All the results suggested that miR-31 function as a crucial tumor suppressor was regulated by epigenetic mechanisms in gastric cancer. We found an epigenetic pathway loop, DNA methylation-miRNA expression-target gene-tumor progression in gastric cancer, and also provided implications for molecular diagnosis and therapeutics of gastric malignancies by detecting miR-31 as a potential target.
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36
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Feliciano A, Garcia-Mayea Y, Jubierre L, Mir C, Hummel M, Castellvi J, Hernández-Losa J, Paciucci R, Sansano I, Sun Y, Ramón Y Cajal S, Kondon H, Soriano A, Segura M, Lyakhovich A, LLeonart ME. miR-99a reveals two novel oncogenic proteins E2F2 and EMR2 and represses stemness in lung cancer. Cell Death Dis 2017; 8:e3141. [PMID: 29072692 PMCID: PMC5680913 DOI: 10.1038/cddis.2017.544] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/22/2017] [Accepted: 09/05/2017] [Indexed: 12/13/2022]
Abstract
Lung cancer is one of the most aggressive tumours with very low life expectancy. Altered microRNA expression is found in human tumours because it is involved in tumour growth, progression and metastasis. In this study, we analysed microRNA expression in 47 lung cancer biopsies. Among the most downregulated microRNAs we focussed on the miR-99a characterisation. In vitro experiments showed that miR-99a expression decreases the proliferation of H1650, H1975 and H1299 lung cancer cells causing cell cycle arrest and apoptosis. We identified two novel proteins, E2F2 (E2F transcription factor 2) and EMR2 (EGF-like module-containing, mucin-like, hormone receptor-like 2), downregulated by miR-99a by its direct binding to their 3′-UTR. Moreover, miR-99a expression prevented cancer cell epithelial-to-mesenchymal transition (EMT) and repressed the tumourigenic potential of the cancer stem cell (CSC) population in both these cell lines and mice tumours originated from H1975 cells. The expression of E2F2 and EMR2 at protein level was studied in 119 lung cancer biopsies. E2F2 and EMR2 are preferentially expressed in adenocarcinomas subtypes versus other tumour types (squamous and others). Interestingly, the expression of E2F2 correlates with the presence of vimentin and both E2F2 and EMR2 correlate with the presence of β-catenin. Moreover, miR-99a expression correlates inversely with E2F2 and directly with β-catenin expression in lung cancer biopsies. In conclusion, miR-99a reveals two novel targets E2F2 and EMR2 that play a key role in lung tumourigenesis. By inhibiting E2F2 and EMR2, miR-99a represses in vivo the transition of epithelial cells through an EMT process concomitantly with the inhibition of stemness features and consequently decreasing the CSC population.
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Affiliation(s)
- Andrea Feliciano
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Yoelsis Garcia-Mayea
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Luz Jubierre
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Cristina Mir
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Manuela Hummel
- Centre for Genomic Regulation, Core Facilities - Microarray Unit, C/ Dr. Aiguader 88, 08003 Barcelona, Spain
| | - Josep Castellvi
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Javier Hernández-Losa
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Rosanna Paciucci
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Irene Sansano
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Yilin Sun
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Santiago Ramón Y Cajal
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Hiroshi Kondon
- Geriatric Unit, Graduate School of Medicine, Kyoto University Hospital, Kyoto 606-8507, Japan
| | - Aroa Soriano
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Miguel Segura
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Alex Lyakhovich
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
| | - Matilde E LLeonart
- Biomedical Research in Cancer Stem Cells Group, Pathology Department, Institut de Recerca Hospital Vall d'Hebron (VHIR), Passeig Vall d'Hebron 119-129, 08035 Barcelona, Spain
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Borska L, Andrys C, Chmelarova M, Kovarikova H, Krejsek J, Hamakova K, Beranek M, Palicka V, Kremlacek J, Borsky P, Fiala Z. Roles of miR-31 and endothelin-1 in psoriasis vulgaris: pathophysiological functions and potential biomarkers. Physiol Res 2017; 66:987-992. [PMID: 28937251 DOI: 10.33549/physiolres.933615] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Psoriatic lesions are characterized by hyperproliferation, aberrant differentiation of keratinocytes resistant to apoptosis and inflammation. miR-31 plays pro-proliferative, pro-differentiative and pro-inflammatory roles and modulates apoptosis in psoriatic keratinocytes. Endothelin-1 (ET-1) is produced by psoriatic keratinocytes and suppresses apoptosis. Inflammation increases the production of ET-1, which in turn leads to the chronic stimulation of keratinocyte proliferation. The aim of this study was to identify the putative link between two potential biomarkers (miR-31 and ET-1) in patients with psoriasis. The study design included experimental group (29 patients with psoriasis), and the control group (22 blood donors). The PASI score evaluated the state of the disease (median: 18.6; interquartile range 14.5-20.9). Both, the serum level of ET-1 and the whole blood level of miR-31 were significantly increased (p<0.001 and p<0.05, respectively) in patients compared to the controls. However, a significant negative relationship between ET-1 and miR-31 was observed (Spearman's rho=-037, p=0.05). It is possible that a negative feedback loop will be present between miR-31 and ET-1. Our results indicate that miR-31 and ET-1, potential biomarkers of the disease, play significant roles in the pathophysiology of psoriasis.
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Affiliation(s)
- L Borska
- Institute of Pathological Physiology, Faculty of Medicine, Charles University, Hradec Kralove, Czech Republic.
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Korourian A, Roudi R, Shariftabrizi A, Madjd Z. MicroRNA-31 inhibits RhoA-mediated tumor invasion and chemotherapy resistance in MKN-45 gastric adenocarcinoma cells. Exp Biol Med (Maywood) 2017; 242:1842-1847. [PMID: 28836853 DOI: 10.1177/1535370217728460] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
microRNAs are small single-stranded non-coding RNA molecules which modify gene expression by silencing potential target genes. The aberrant expression of RhoA, a small GTPase protein of Rho family, is involved in gastric cancer tumorigenesis. Since miR-31 is a pleomorphic molecule, we evaluated the miR-31/RhoA axis in inducing the malignant phenotype of gastric cancer cells MKN-45. Also, the clinicopathological significance of RhoA was investigated in a well-defined collection of gastric carcinomas which were embedded in tissue microarray blocks. Induction of miR-31 in MKN-45 followed by suppression of RhoA expression resulted in increased sensitivity to 5-fluorouracil, inhibition of cell proliferation, and invasion compared to the control groups. Immunohistochemical analysis in gastric adenocarcinoma patients' samples showed significantly higher expression of RhoA in diffuse versus intestinal subtype tumors ( P = 0.009), poorly differentiated versus well and moderately differentiated tumors ( P = 0.03) and the presence of vascular invasion versus the absence of vascular invasion ( P = 0.04). Our findings suggest a critical role for miR-31, as a tumor suppressor gene, in gastric cancer tumorigenesis by targeting the RhoA. Impact statement Gastric cancer ranks as the third leading cause of cancer-associated deaths worldwide. The RhoA gene encodes a small GTPase protein of Rho family (RhoA) that its dysregulation is associated with cell motility and invasion. A strong line of evidence supports the regulation of RhoA by a number of miRs, including miR-31 in tumors. Our findings revealed that miR-31 is involved in gastric cancer tumorigenesis as a tumor suppressor gene. Through down-regulation of RhoA, miR-31 decreased cell proliferation, migration, and invasion in gastric cancer cells. In addition, induction of miR-31 increased sensitivity to 5-FU; thus, increasing its tissue concentrations could be a potential target for treatment of gastric cancer in the future.
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Affiliation(s)
- Alireza Korourian
- 1 Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 14496-14530, Iran
| | - Raheleh Roudi
- 2 Oncopathology Research Center, Iran University of Medical Sciences, Tehran 14496-14530, Iran
| | - Ahmad Shariftabrizi
- 3 Department of Nuclear Medicine and Molecular Imaging, State University of New York at Buffalo, Buffalo, NY 14214, USA
| | - Zahra Madjd
- 1 Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran 14496-14530, Iran.,2 Oncopathology Research Center, Iran University of Medical Sciences, Tehran 14496-14530, Iran
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Zhang Y, Guan DH, Bi RX, Xie J, Yang CH, Jiang YH. Prognostic value of microRNAs in gastric cancer: a meta-analysis. Oncotarget 2017; 8:55489-55510. [PMID: 28903436 PMCID: PMC5589675 DOI: 10.18632/oncotarget.18590] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 05/08/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Previous articles have reported that expression levels of microRNAs (miRNAs) are associated with survival time of patients with gastric cancer (GC). A systematic review and meta-analysis was performed to study the outcome of it. DESIGN Meta-analysis. METHODS English studies estimating expression levels of miRNAs with any of survival curves in GC were identified up till March 19, 2017 through performing online searches in PubMed, EMBASE, Web of Science and Cochrane Database of Systematic Reviews by two authors independently. The pooled hazard ratios (HR) with 95% confidence intervals (CI) were used to estimate the correlation between miRNA expression and overall survival (OS). RESULTS Sixty-nine relevant articles about 26 miRNAs with 6148 patients were ultimately included. GC patients with high expression of miR-20b (HR=2.38, 95%CI=1.16-4.87), 21 (HR=1.77, 95%CI=1.01-3.08), 106b (HR=1.84, 95%CI=1.15-2.94), 196a (HR=2.66, 95%CI=1.94-3.63), 196b (HR=1.67, 95%CI=1.38-2.02), 214 (HR=1.84, 95%CI=1.27-2.67) or low expression of miR-125a (HR=2.06, 95%CI=1.26-3.37), 137 (HR=3.21, 95%CI=1.68-6.13), 141 (HR=2.47, 95%CI=1.34-4.56), 145 (HR=1.62, 95%CI=1.07-2.46), 146a (HR=2.60, 95%CI=1.63-4.13), 206 (HR=2.85, 95%CI=1.73-4.70), 218 (HR=2.61, 95%CI=1.74-3.92), 451 (HR=1.73, 95%CI=1.19-2.52), 486-5p (HR=2.45, 95%CI=1.65-3.65), 506 (HR=2.07, 95%CI=1.33-3.23) have significantly poor OS (P<0.05). CONCLUSIONS In summary, miR-20b, 21, 106b, 125a, 137, 141, 145, 146a, 196a, 196b, 206, 214, 218, 451, 486-5p and 506 demonstrate significantly prognostic value. Among them, miR-20b, 125a, 137, 141, 146a, 196a, 206, 218, 486-5p and 506 are strong biomarkers of prognosis in GC.
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Affiliation(s)
- Yue Zhang
- 1 First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, Shandong, People's Republic of China
| | - Dong-Hui Guan
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Rong-Xiu Bi
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Jin Xie
- 2 Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Chuan-Hua Yang
- 3 Department of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Yue-Hua Jiang
- 4 Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
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Identification of aminosulfonylarylisoxazole as microRNA-31 regulators. PLoS One 2017; 12:e0182331. [PMID: 28783765 PMCID: PMC5544221 DOI: 10.1371/journal.pone.0182331] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/17/2017] [Indexed: 12/28/2022] Open
Abstract
The discovery of small-molecule regulators of microRNAs remains challenging, but a few have been reported. Herein, we describe small-molecule inhibitors of miR-31, a tumor-associated microRNA (miRNA), identified by high-throughput screening using a cell-based reporter assay. Aminosulfonylarylisoxazole compounds exhibited higher specificity for miR-31 than for six other miRNAs, i.e., miR-15a, miR-16, miR-21, miR-92a-1, miR-146a, and miR-155, and increased the expression of miR-31 target genes. The down-regulation of mature miR-31 was observed, while its precursor form increased following treatment with the compounds. Thus, the compounds may target the processing of pre-miR-31 into mature miR-31 and thereby inhibit the production of mature miR-31.
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41
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Zhang L, Feng G, Zhang X, Ding Y, Wang X. microRNA‑630 promotes cell proliferation and inhibits apoptosis in the HCT116 human colorectal cancer cell line. Mol Med Rep 2017; 16:4843-4848. [PMID: 28791386 DOI: 10.3892/mmr.2017.7159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 04/20/2017] [Indexed: 11/06/2022] Open
Abstract
Dysregulation of microRNAs (miRNAs) in colorectal cancer provides important opportunities for the development of future miRNA‑based therapies. The present study aimed to assess the role of miRNA‑630 (miR‑630) expression in colorectal cancer. HCT116 human colorectal cancer cells were transfected with miR‑630 inhibitor, mimic or control miRNA, and the effects of miR‑630 dysregulation on cell viability, proliferation and apoptosis were analyzed using MTT and bromodeoxyuridine assays, and an annexin V‑fluorescein isothiocyanate cell apoptosis kit, respectively. In addition, the changes in the protein expression of proliferation‑associated and AKT signaling pathway proteins were analyzed by western blot analysis. The results of the present study demonstrated that overexpression of miR‑630 significantly promoted HCT116 cell proliferation however inhibited apoptosis. Furthermore, miR‑630 overexpression reduced the protein expression of p27, BCL2‑associated X apoptosis regulator, procaspase‑3 and active caspase‑3, and increased the levels of phosphorylated‑AKT and BCL2 apoptosis regulator. The suppression of miR‑630 led to the opposite results. In conclusion, the present findings suggested that miR‑630 may function as an oncogenic miRNA in colorectal cancer, and may promote cellular proliferation and inhibit apoptosis, through the regulation of the expression of p27 and the AKT signaling pathway. The present study suggested that the inhibition of miR‑630 may have potential as an alternative therapeutic strategy for the treatment of patients with colorectal cancer.
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Affiliation(s)
- Lijuan Zhang
- Department of Oncology, Aerospace Center Hospital, Beijing 100049, P.R. China
| | - Gang Feng
- Department of Oncology, Wuhan Puai Hospital, Wuhan 430033, P.R. China
| | - Xinyan Zhang
- Department of Gastroenterology, Aerospace Center Hospital, Beijing 100049, P.R. China
| | - Yawen Ding
- Department of Oncology, Wuhan Puai Hospital, Wuhan 430033, P.R. China
| | - Xiaojuan Wang
- Department of Oncology, Wuhan Puai Hospital, Wuhan 430033, P.R. China
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Sun M, Zhao X, Liang L, Pan X, Lv H, Zhao Y. Sialyltransferase ST3GAL6 mediates the effect of microRNA-26a on cell growth, migration, and invasion in hepatocellular carcinoma through the protein kinase B/mammalian target of rapamycin pathway. Cancer Sci 2017; 108:267-276. [PMID: 27906498 PMCID: PMC5329153 DOI: 10.1111/cas.13128] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/20/2016] [Accepted: 11/22/2016] [Indexed: 12/22/2022] Open
Abstract
Aberrant sialylation profiles on the cell surface have been recognized for their potential diagnostic value in identifying the regulation of tumor properties in several cancers, including hepatocellular carcinoma (HCC). Recently, increasing evidence has suggested that the deregulation of microRNA (miRNA) is a common feature in human cancers. In this study, we found obvious upregulation of sialyltransferase ST3GAL6 both in HCC cell lines and in tissue samples. The altered expression of ST3GAL6 was found to correlate with cell proliferation, migration, and invasion ability in HCC. Further investigation showed that miR‐26a negatively regulated ST3GAL6, inducing the suppression of cell proliferation, migration, and invasion in vitro. Moreover, we identified the protein kinase B/mammalian target of rapamycin (Akt/mTOR) pathway as the target of ST3GAL6 based on Western blot analysis. Analysis of a xenograft mouse model showed that miR‐26a significantly reduced tumor growth by suppressing activation of the Akt/mTOR pathway by directly targeting ST3GAL6. In conclusion, these data indicate that ST3GAL6 promotes cell growth, migration, and invasion and mediates the effect of miR‐26a through the Akt/mTOR signaling pathway in HCC.
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Affiliation(s)
- Mingming Sun
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xuzi Zhao
- School of Basic Medical Sciences, Hebei Medical University, Shijiazhuang, China
| | - Leilei Liang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xufeng Pan
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hao Lv
- Department of Orthopedics, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yongfu Zhao
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
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Deng HT, Liu HL, Zhai BB, Zhang K, Xu GC, Peng XM, Zhang QZ, Li LY. Vascular endothelial growth factor suppresses TNFSF15 production in endothelial cells by stimulating miR-31 and miR-20a expression via activation of Akt and Erk signals. FEBS Open Bio 2016; 7:108-117. [PMID: 28097093 PMCID: PMC5221472 DOI: 10.1002/2211-5463.12171] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/18/2016] [Accepted: 11/26/2016] [Indexed: 02/05/2023] Open
Abstract
Tumor necrosis factor superfamily‐15 (TNFSF15; VEGI; TL1A) is a negative modulator of angiogenesis for blood vessel homeostasis and is produced by endothelial cells in a mature vasculature. It is known to be downregulated by vascular endothelial growth factor (VEGF), a major regulator of neovascularization but the mechanism of this interaction is unclear. Here we report that VEGF is able to stimulate the production of two microRNAs, miR‐20a and miR‐31, which directly target the 3′‐UTR of TNFSF15. Additionally, we show that two VEGF‐stimulated cell growth signals, Erk and Akt, are responsible for promoting the expression of miR‐20a and miR‐31. Treatment of human umbilical vein endothelial cells (HUVECs) with Akt inhibitor LY294002 results in diminished miR‐20a and miR‐31 production, while Erk inhibitor U0126 prevented VEGF‐stimulated expression of miR‐20a but not that of miR‐31. Furthermore, inactivation of either Erk or Akt signals restores TNFSF15 gene expression. In an angiogenesis assay, elevated miR‐20a or miR‐31 levels in HUVECs leads to enhancement of capillary‐like tubule formation in vitro, whereas lowered miR‐20a and miR‐31 levels results in an inhibition. These findings are consistent with the view that miR‐20a and miR‐31 mediate VEGF‐induced downregulation of TNFSF15. Targeting these microRNA molecules may therefore provide an effective approach to inhibit angiogenesis.
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Affiliation(s)
- Hui-Ting Deng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Hai-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Bei-Bei Zhai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Kun Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Guo-Ce Xu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Xue-Mei Peng
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Qiang-Zhe Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
| | - Lu-Yuan Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, and Tianjin Key Laboratory of Molecular Drug Research Nankai University China; Collaborative Innovation Center for Biotherapy Nankai University West China Hospital Sichuan University Chengdu China
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Luo LJ, Yang F, Ding JJ, Yan DL, Wang DD, Yang SJ, Ding L, Li J, Chen D, Ma R, Wu JZ, Tang JH. MiR-31 inhibits migration and invasion by targeting SATB2 in triple negative breast cancer. Gene 2016; 594:47-58. [DOI: 10.1016/j.gene.2016.08.057] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/28/2016] [Accepted: 08/31/2016] [Indexed: 12/22/2022]
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Abstract
Lung cancer is a heterogeneous disease, and there is a lack of adequate biomarkers for diagnosis. Long noncoding RNAs (lncRNAs) are emerging as an important set of molecules because of their roles in various key pathophysiological pathways, including cell growth, apoptosis, and metastasis. We review the current knowledge of the lncRNAs in lung cancer. In-depth analyses of lncRNAs in lung cancer have increased the number of potential effective biomarkers, thus providing options to increase the therapeutic benefit. In this review, we summarize the functions, mechanisms, and regulatory networks of lncRNAs in lung cancer, providing a basis for further research in this field.
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Affiliation(s)
- Zhenzi Peng
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chunfang Zhang
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chaojun Duan
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
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