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Liang Y, Wei X, Yue PJ, Zhang HC, Li ZN, Wang XX, Sun YY, Fu WN. MYCT1 inhibits hematopoiesis in diffuse large B-cell lymphoma by suppressing RUNX1 transcription. Cell Mol Biol Lett 2024; 29:5. [PMID: 38172714 PMCID: PMC10763471 DOI: 10.1186/s11658-023-00522-0] [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: 08/15/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND The abnormality of chromosomal karyotype is one factor causing poor prognosis of lymphoma. In the analysis of abnormal karyotype of lymphoma patients, three smallest overlap regions were found, in which MYCT1 was located. MYCT1 is the first tumor suppressor gene cloned by our research team, but its studies relating to the occurrence and development of lymphoma have not been reported. METHODS R banding analyses were employed to screen the abnormality of chromosomal karyotype in clinical specimen and MYCT1 over-expression cell lines. FISH was to monitor MYCT1 copy number aberration. RT-PCR and Western blot were to detect the mRNA and protein levels of the MYCT1 and RUNX1 genes, respectively. The MYCT1 and RUNX1 protein levels in clinical specimen were evaluated by immunohistochemical DAB staining. The interaction between MYCT1 and MAX proteins was identified via Co-IP and IF. The binding of MAX on the promoter of the RUNX1 gene was detected by ChIP and Dual-luciferase reporter assay, respectively. Flow cytometry and CCK-8 assay were to explore the effects of MYCT1 and RUNX1 on the cell cycle and proliferation, respectively. RESULTS MYCT1 was located in one of three smallest overlap regions of diffuse large B-cell lymphoma, it altered chromosomal instability of diffuse large B-cell lymphoma cells. MYCT1 negatively correlated with RUNX1 in lymphoma tissues of the patients. MAX directly promoted the RUNX1 gene transcription by binding to its promoter region. MYCT1 may represses RUNX1 transcription by binding MAX in diffuse large B-cell lymphoma cells. MYCT1 binding to MAX probably suppressed RUNX1 transcription, leading to the inhibition of proliferation and cell cycle of the diffuse large B-cell lymphoma cells. CONCLUSION This study finds that there is a MYCT1-MAX-RUNX1 signaling pathway in diffuse large B-cell lymphoma. And the study provides clues and basis for the in-depth studies of MYCT1 in the diagnosis, treatment and prognosis of lymphoma.
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Affiliation(s)
- Ying Liang
- Department of Medical Genetics, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, 110122, People's Republic of China
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Xin Wei
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Peng-Jie Yue
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - He-Cheng Zhang
- Department of Medical Genetics, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, 110122, People's Republic of China
| | - Zhen-Ning Li
- Department of Oromaxillofacial-Head and Neck Surgery, Liaoning Province Key Laboratory of Oral Disease, School and Hospital of Stomatology, China Medical University, Shenyang, People's Republic of China
| | - Xiao-Xue Wang
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, People's Republic of China
| | - Yuan-Yuan Sun
- Department of Medical Genetics, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, 110122, People's Republic of China.
| | - Wei-Neng Fu
- Department of Medical Genetics, China Medical University, No. 77 Puhe Road, Shenyang North New Area, Shenyang, Liaoning Province, 110122, People's Republic of China.
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Dong X, Xue S, Chen C, Jiang Z, Wu X, Wang W. MYCT-1 Gene Expression in Patients with Gastric Cancer: an Ex Vivo Study. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04754-w. [PMID: 38112991 DOI: 10.1007/s12010-023-04754-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2023] [Indexed: 12/21/2023]
Abstract
Ploidy, p53, bcl-2, and c-myc genes are associated with gastric cancer. Myc target 1 (MYCT1) gene is an oncogenic gene and is associated with cancer progression through different signal transduction pathways identifying the corresponding genes The objective of the study was to evaluate the association between MYCT1 gene expression and gastric cancer. Real-time polymerase chain reaction (RT-PCR), western blot analysis, cell growth study, and TUNEL assay were performed for the human gastric cancer cell lines and human embryonic kidney cell line. β-Actin gene preferred as a control in RT-PCR. The ratio of MYCT1 gene expression to β-actin gene expression less than 0.5 was considered as downregulation. Using SDS-PAGE MYCT1 gene expression was measured in western blot analysis. Cells with and without the MYCT1 gene were incubated in 35 mm plates with 10% fetal bovine serum in the cell growth study. TUNEL assay was performed to detect the effect of the MYCT1 gene on the apoptosis of cells. The ratio of MYCT1 gene expression to β-actin gene expression was 0.47 ± 0.01 and 0.76 ± 0.01 for human gastric cancer cell lines and human embryonic kidney cell lines, respectively. MYCT1 gene expression was downregulated in the human gastric cancer cell lines than human embryonic kidney cell line (p < 0.001). MYCT1 gene decreased cell growth (p = 0.041) during 6 days of incubation study of cells. TUNEL assay showed only the fluorescence of PI in BGC823 cells without the MYCT1 gene. MYCT1 gene expression was downregulated in the human gastric cancer cell lines, and MYCT1 gene accelerates the apoptotic process.
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Affiliation(s)
- Xiangning Dong
- Department of Oncology, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China.
| | - Song Xue
- Department of Oncology, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China
| | - Chen Chen
- Department of Ultrasound, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China
| | - Zonghui Jiang
- Department of Oncology, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China
| | - Xiangdu Wu
- Department of Gastroenterology, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China
| | - Weifei Wang
- Department of Oncology, The First People's Hospital of Chuzhou, The Affiliated Chuzhou Hospital of Anhui Medical University, Chuzhou, China
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Xu J, Sun Y, Fu W, Fu S. MYCT1 in cancer development: Gene structure, regulation, and biological implications for diagnosis and treatment. Biomed Pharmacother 2023; 165:115208. [PMID: 37499454 DOI: 10.1016/j.biopha.2023.115208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/10/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
Myc target 1 (MYCT1), located at 6q25.2, is a crucial player in cancer development. While widely distributed in cells, its subcellular localization varies across different cancer types. As a novel c-Myc target gene, MYCT1 is subject to regulation by multiple transcription factors. Studies have revealed aberrant expression of MYCT1 in various cancers, impacting pivotal biological processes such as proliferation, apoptosis, migration, genomic instability, and differentiation in cancer cells. Additionally, MYCT1 plays a critical role in modulating tumor angiogenesis and remodeling tumor immune responses within the tumor microenvironment. Despite certain debated functions, MYCT1 undeniably holds significance in cancer development. In this review, we comprehensively examine the relationship between MYCT1 and cancer, encompassing gene structure, regulation of gene expression, gene mutation, and biological function, with the aim of providing valuable insights for cancer diagnosis and treatment.
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Affiliation(s)
- Jianan Xu
- Department of Medical genetics, China Medical University, Shenyang 110022, PR China
| | - Yuanyuan Sun
- Department of Medical genetics, China Medical University, Shenyang 110022, PR China
| | - Weineng Fu
- Department of Medical genetics, China Medical University, Shenyang 110022, PR China
| | - Shuang Fu
- Department of Hematology Laboratory, Shengjing Hospital of China Medical University, Shenyang 110022, PR China; Department of Medical genetics, China Medical University, Shenyang 110022, PR China.
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Zhang S, Zheng N, Chen X, Du K, Yang J, Shen L. Establishment and Validation of a Ferroptosis-Related Long Non-Coding RNA Signature for Predicting the Prognosis of Stomach Adenocarcinoma. Front Genet 2022; 13:818306. [PMID: 35242169 PMCID: PMC8886230 DOI: 10.3389/fgene.2022.818306] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/24/2022] [Indexed: 12/11/2022] Open
Abstract
Background: Ferroptosis is a form of regulated cell death that follows cell membrane damage and mostly depends on iron-mediated oxidative. Long non-coding RNAs (LncRNAs) are associated with the development of a variety of tumors. Till date, LncRNAs have been reported to intervene in ferroptosis. Therefore, we intended to provide a prognostic ferroptosis-related-lncRNA signature in stomach adenocarcinoma (STAD). Methods: We downloaded ferroptosis-related genes from the FerrDb database and RNA sequencing data and clinicopathological characteristics from The Cancer Genome Atlas. Gene differential expression analysis was performed using the “limma” package. We used Cox regression analysis to determine the ferroptosis-related lncRNAs signature with the lowest AIC value. The Kaplan–Meier curve, ROC curve, and nomogram were used to evaluate the prognostic value of the risk score. Gene set enrichment analysis (GSEA) was used to explore the biologic functions of the three ferroptosis-related lncRNAs. LINC01615 expression in gastric cancer cell lines and tissues was measured by real-time PCR. A nuclear-cytoplasmic fractionation assay was used to analyze the subcellular localization for LINC01615. Furthermore, we used bioinformatics to predict potential target microRNAs (miRNAs) of LINC01615 and their target ferroptosis-related mRNAs. Results: Three ferroptosis-related-lncRNA signatures (AP000695.2, AL365181.3, and LINC01615) were identified, and then Kaplan–Meier, Cox regression analyses, and ROC curve confirmed that the ferroptosis-related-lncRNA model could predict the prognosis of STAD. The GSEA indicated that the three ferroptosis-related lncRNAs might be related to the extracellular matrix and cellular activities. LINC01615 is highly expressed in gastric cancer cell lines and tissues. A nuclear-cytoplasmic fractionation assay confirmed that in gastric cancer cell lines, most LINC01615 was enriched in the cytoplasm. Bioinformatics further predicts four potential target miRNAs of LINC01615 and then figured out 26 target ferroptosis-related mRNAs. Conclusion: We established a three-ferroptosis-related-lncRNA model (AP000695.2, AL365181.3, and LINC01615) that can predict the prognosis of STAD patients. We also expected to provide a promising target for LINC01615 for research in the future, which was highly expressed in gastric cancer and cell lines and acted as a ceRNA to get involved in ferroptosis.
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Affiliation(s)
- Shuqiong Zhang
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Naisheng Zheng
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaocui Chen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kun Du
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junyao Yang
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lisong Shen
- Department of Clinical Laboratory, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Faculty of Medical Laboratory Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Xin Hua Children's Hospital, Shanghai, China
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Wang H, Wang H, Cui W, Zhang Q, Li J, Zhang Q. Enhanced expression of miR-889 forecasts an unfavorable prognosis and facilitates cell progression in hepatocellular carcinoma. Diagn Pathol 2021; 16:51. [PMID: 34116691 PMCID: PMC8196534 DOI: 10.1186/s13000-021-01111-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Background As a new type of molecular marker, microRNAs (miRNAs) can be used for early diagnosis and prognosis prediction of malignant tumors, and has broad clinical application prospects. This paper mainly studies the important role of miR-889 in the occurrence and development of hepatocellular carcinoma and the prognostic significance of miR-889 in hepatocellular carcinoma. Methods Quantitative real-time PCR analysis detected the expression levels of miR-889 in hepatocellular carcinoma tissues and cell lines. Kaplan-Meier curve and Cox regression analysis were used to explore the prognostic significance of miR-889 in hepatocellular carcinoma. The CCK-8 and Transwell assays assay were used to assess cell proliferation, migration, and invasion abilities ability. Results The expression of miR-889 in hepatocellular carcinoma tissues was significantly higher than that in adjacent tissues. Overexpression of miR-889 was significantly associated with TNM stage, hepatitis B virus infection, and cirrhosis. Patients with high miR-889 expression had shorter overall survival than those with low miR-889 expression. And functional studies in two hepatocellular carcinoma cell lines have shown that overexpression of miR-889 significantly promoted cell proliferation, migration, and invasion in vitro. Conclusions Overall, miR-889 was upregulated in hepatocellular carcinoma tissues and cell lines, and overexpression of miR-889 promoted cell proliferation, migration, and invasion in hepatocellular carcinoma cells. Based on our findings, high expression of miR-889 may promote the progression of hepatocellular carcinoma, and high expression of miR-889 is also forecasted for an unfavorable prognosis in hepatocellular carcinoma.
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Affiliation(s)
- He Wang
- Department of Interventional, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, Heilongjiang, 150081, Harbin, China
| | - Huiwen Wang
- Department of Interventional, Harbin Medical University Cancer Hospital, No.150 Haping Road, Harbin, Heilongjiang, 150081, Harbin, China
| | - Wenyu Cui
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
| | - Qiao Zhang
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China.
| | - Jing Li
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
| | - Qi Zhang
- School of Pharmacy, Harbin University of Commerce, 138 Tongda Street, Harbin, 150076, Heilongjiang, China
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miR-455 Inhibits the Viability and Invasion by Targeting RAB18 in Hepatocellular Carcinoma. JOURNAL OF ONCOLOGY 2021; 2021:9923454. [PMID: 34135963 PMCID: PMC8178015 DOI: 10.1155/2021/9923454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/19/2021] [Indexed: 11/18/2022]
Abstract
Background Hepatocellular carcinoma (HCC) has been regarded as the fifth most common cancer worldwide with a low prognosis. miR-455 usually played the role of a tumor suppressor in multiple cancers. The aim of this study was to investigate the roles of miR-455 in HCC. Materials and Methods Cell viability and invasion were measured by CCK8 and Transwell assays. Luciferase reporter assay was performed to verify that miR-455 directly binds to the 3′-noncoding region (UTR) of RAB18 mRNA in Huh7 cells. Results The expression of miR-455 was lower in HCC tissues and cell lines than in nontumor tissues and normal cell line, and downregulation of miR-455 was connected with worse outcome of HCC patients. miR-455 suppressed cell proliferation in vitro and in vivo, and it inhibited the abilities of cell invasion and EMT in HCC. RAB18 was upregulated in HCC tissues and cell lines, and the expression of RAB18 was regulated by miR-455. RAB18 reversed partial roles of miR-455 on cell viability and invasion in HCC. Conclusion miR-455 inhibited cell viability and invasion by directly targeting the 3′-UTR of RAB18 mRNA of hepatocellular carcinoma.
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Long non-coding RNA 01559 mediates the malignant phenotypes of hepatocellular carcinoma cells through targeting miR-511. Clin Res Hepatol Gastroenterol 2021; 45:101648. [PMID: 33588099 DOI: 10.1016/j.clinre.2021.101648] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 01/14/2021] [Accepted: 01/29/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Long non-coding RNA 01559 (LINC01559) has been found to be associated with the tumorigenesis of malignant tumors. However, the expression pattern and the potential molecular mechanism of LINC01559 in hepatocellular carcinoma (HCC) progression remain unclear. METHODS Expression profile and clinical data of patients with HCC were retrieved from The Cancer Genome Atlas database. The quantitative real-time PCR (qRT-PCR) and western blot assays were used to detect the mRNA and protein levels of indicated molecules. Loss-of-function of LINC01559 and microRNA-511 (miR-511) assays were implemented to validate their roles in regulating proliferation, invasion and migration of HCC HepG2 and Huh7 cells. Bioinformatics and luciferase reporter assays were used to determine the possible interactions between LINC01559, miR-511 and solute carrier family 38 member 1 (SLC38A1). RESULTS LINC01559 was highly expressed, and related to poor prognosis in HCC patients. LINC01559-knockdown restrained the proliferation and growth of HepG2 and Huh7 cells. Furthermore, LINC01559 can function as a sponge for miR-511, which was downregulated in HCC patients. Downregulation of miR-511 significantly increased the cell viability, invasive and migratory capacities, and could abolish the suppressive effect of LINC01559-knockdown on these HCC cells. Moreover, SLC38A1 was a target of miR-511 and upregulated in HCC. Knockdown of LINC01559 significantly reduced while miR-511 inhibitor notably elevated the mRNA and protein levels of SLC38A1, which were abrogated by downregulation of LINC01559 and miR-511 simultaneously. CONCLUSIONS LINC01559 functioned as a competitive endogenous RNA mediating the malignant phenotypes of HCC cells via sponging miR-511, and may be a considerable therapeutic bio-target in HCC.
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Ghafouri-Fard S, Honarmand Tamizkar K, Hussen BM, Taheri M. MicroRNA signature in liver cancer. Pathol Res Pract 2021; 219:153369. [PMID: 33626406 DOI: 10.1016/j.prp.2021.153369] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 12/24/2022]
Abstract
Liver cancer is the 7th utmost frequent neoplasm and the 4th principal source of cancer deaths. This malignancy is linked with several environmental and lifestyle-related factors emphasizing the role of epigenetics in its pathogenesis. MicroRNAs (miRNAs) have been regarded as potent epigenetic mechanisms partaking in the pathogenesis of liver cancer. Dysregulation of miRNAs has been related with poor outcome of patients with liver cancer. In the current manuscript, we provide a concise review of the results of recent studies about the role of miRNAs in the progression of liver cancer and their diagnostic and prognostic utility.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Bashdar Mahmud Hussen
- Pharmacognosy Department, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Fekete JT, Welker Á, Győrffy B. miRNA Expression Signatures of Therapy Response in Squamous Cell Carcinomas. Cancers (Basel) 2020; 13:cancers13010063. [PMID: 33379285 PMCID: PMC7794682 DOI: 10.3390/cancers13010063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/17/2020] [Accepted: 12/23/2020] [Indexed: 12/25/2022] Open
Abstract
Simple Summary miRNAs play role in various diseases and can also modulate therapy response. Our aim was to identify predictive miRNAs in platinum treated squamous cell carcinomas (SCC). Using a set of 266 squamous cancer samples we uncovered 16, 103, and 9 miRNAs correlated to chemotherapy response in the cervical, head and neck, and lung squamous cell carcinomas, respectively. By employing a logistic regression model, a signature comprising a set of six miRNAs was established capable to predict chemotherapy response with an AUC of 0.897. Our results show common molecular features of SCC tumors and pinpoint the most important miRNAs related to treatment outcome. Abstract Introduction: Squamous cell carcinomas (SCC) are a major subgroup of malignant tumors with a platinum-based first-line systematic chemotherapy. miRNAs play a role in various diseases and modulate therapy response as well. The aim of this study was to identify predictive miRNAs in platinum-treated SCCs. Methods: miRNA expression data of platinum-treated head and neck (HNSC), cervical (CESC) and lung (LUSC) cancer were collected from the TCGA repositories. Treatment response was defined based on presence or absence of disease progression at 18 months. Responder and nonresponder cohorts were compared using Mann–Whitney and Receiver Operating Characteristic tests. Logistic regression was developed to establish a predictive miRNA signature. Significance was set at FDR < 5%. Results: The integrated database includes 266 SCC patient samples with platinum-based therapy and available follow-up. We uncovered 16, 103, and 9 miRNAs correlated to chemotherapy response in the CESC, HNSC, and LUSC cohorts, respectively. Eight miRNAs overlapped between the CESC and HNSC subgroups, and three miRNAs overlapped between the LUSC and HNSC subgroups. We established a logistic regression model in HNSC and CESC which included six miRNAs: hsa-miR-5586 (Exp (B): 2.94, p = 0.001), hsa-miR-632 (Exp (B): 10.75, p = 0.002), hsa-miR-2355 (Exp (B): 0.48, p = 0.004), hsa-miR-642a (Exp (B): 2.22, p = 0.01), hsa-miR-101-2 (Exp (B): 0.39, p = 0.013) and hsa-miR-6728 (Exp (B): 0.21, p = 0.016). The model using these miRNAs was able to predict chemotherapy resistance with an AUC of 0.897. Conclusions: We performed an analysis of RNA-seq data of squamous cell carcinomas samples and identified significant miRNAs correlated to the response against platinum-based therapy in cervical, head and neck, and lung tumors.
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Affiliation(s)
- János Tibor Fekete
- Department of Bioinformatics and 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary;
- Research Center for Natural Sciences, Momentum Cancer Biomarker Research Group, Institute of Enzymology, Magyar tudósok körútja 2., H-1117 Budapest, Hungary;
| | - Ágnes Welker
- Research Center for Natural Sciences, Momentum Cancer Biomarker Research Group, Institute of Enzymology, Magyar tudósok körútja 2., H-1117 Budapest, Hungary;
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, H-1083 Budapest, Hungary
| | - Balázs Győrffy
- Department of Bioinformatics and 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary;
- Research Center for Natural Sciences, Momentum Cancer Biomarker Research Group, Institute of Enzymology, Magyar tudósok körútja 2., H-1117 Budapest, Hungary;
- Correspondence:
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Yue PJ, Sun YY, Li YH, Xu ZM, Fu WN. MYCT1 inhibits the EMT and migration of laryngeal cancer cells via the SP1/miR-629-3p/ESRP2 pathway. Cell Signal 2020; 74:109709. [PMID: 32659265 DOI: 10.1016/j.cellsig.2020.109709] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/02/2020] [Accepted: 07/07/2020] [Indexed: 12/14/2022]
Abstract
MYCT1 has an inhibitory effect on the migration of laryngeal cancer cells, although the underlying molecular mechanism remains unknown. In this study, we aimed to explore the mechanism of MYCT1 in the epithelial-mesenchymal transition (EMT) and migration of laryngeal cancer cells. We found that MYCT1 significantly decreased the expression of miR-629-3p but increased the expression of ESRP2 in laryngeal cancer cells. The expression of miR-629-3p and ESRP2 in laryngeal cancer tissues showed significantly positive and negative correlations with patient metastasis, respectively. miR-629-3p was confirmed to repress the expression of ESRP2 by targeting its 3'UTR. SP1 was verified to be a direct transcription factor for miR-629-3p and a downstream target of MYCT1. Moreover, MYCT1 inhibited the EMT and migration of laryngeal cancer cells through the SP1/miR-629-3p/ESRP2 pathway. Taken together, our results establish a novel MYCT1 signaling pathway in the EMT and migration of laryngeal cancer cells, thus providing important insights for further studying the pathway in the diagnosis and treatment of laryngeal cancer.
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Affiliation(s)
- Peng-Jie Yue
- Department of Medical Genetics, China Medical University, Shenyang 110122, PR China
| | - Yuan-Yuan Sun
- Department of Medical Genetics, China Medical University, Shenyang 110122, PR China
| | - Yun-Hui Li
- Department of Laboratory Medicine, General Hospital of Northern Theater Command (Heping Campus), Shenyang 110001, PR China.
| | - Zhen-Ming Xu
- Department of Otolaryngology, the Fourth People's Hospital of Shenyang City, Shenyang 110031, PR China.
| | - Wei-Neng Fu
- Department of Medical Genetics, China Medical University, Shenyang 110122, PR China.
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Cao YC, Song LQ, Xu WW, Qi JJ, Wang XY, Su Y. Serum miR-632 is a potential marker for the diagnosis and prognosis in laryngeal squamous cell carcinoma. Acta Otolaryngol 2020; 140:418-421. [PMID: 32068453 DOI: 10.1080/00016489.2020.1717610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: It has been demonstrated that miRNAs play critical roles in the tumorigenesis and progression of various tumors.Objective: The purpose of this research was to determine the serum miR-632 levels in patients with laryngeal squamous cell carcinoma (LSCC) and to investigate its diagnostic and prognostic value.Materials and methods: We detected serum miR-632 levels in 162 LSCC patients and 42 healthy volunteers. The ROC curve was carried out to determine diagnostic accuracy.Results: We observed that serum miR-632 levels were upregulated in LSCC patients compared with healthy volunteers (p < .01). Subsequent results from ROC indicated that high sensitivity and specificity of serum miR-632 for diagnosing LSCC (area under the curve 0.8828). In addition, it was found that high expressions of serum miR-632 were significantly associated with advanced N stage (p = .020), histological grade (p = .001), and TNM stage (p = .014). Furthermore, patients with higher serum miR-632 expression had a shorter OS and DFS time than those with lower serum miR-632 levels.Conclusion: Our data revealed that serum miR-632 may be a potential noninvasive biomarker which may become a potential diagnostic and prognostic biomarker for LSCC patients.
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Affiliation(s)
- Ying-Chun Cao
- Department of Ear-Nose-Throat, Dongying People’s Hospital, Dongying, China
| | - Li-Qiang Song
- Department of Oncology, Dongying People’s Hospital, Dongying, China
| | - Wei-Wei Xu
- Department of Ear-Nose-Throat, Dongying People’s Hospital, Dongying, China
| | - Jun-Jun Qi
- Department of Ear-Nose-Throat, Dongying People’s Hospital, Dongying, China
| | - Xiang-Yun Wang
- Department of Ear-Nose-Throat, Dongying People’s Hospital, Dongying, China
| | - Yi Su
- Department of Ear-Nose-Throat, Dongying People’s Hospital, Dongying, China
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LncRNA RUNX1-IT1 which is downregulated by hypoxia-driven histone deacetylase 3 represses proliferation and cancer stem-like properties in hepatocellular carcinoma cells. Cell Death Dis 2020; 11:95. [PMID: 32024815 PMCID: PMC7002583 DOI: 10.1038/s41419-020-2274-x] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is characterised by a hypoxic microenvironment and a high rate of heterogeneity and recurrence, and the presence of cancer stem cells (CSCs) in HCC may well explain both of these pathological properties. There is mounting evidence that long non-coding RNAs (lncRNAs) participate in carcinogenesis and maintain cancer stemness of HCC cells. However, the expression modes, regulatory mechanisms and potential roles of stemness-related lncRNAs in HCC are still obscure. LncRNA RUNX1-IT1 is the intronic transcript 1 of the RUNX1, which is also known as chromosome 21 open-reading frame 96 (C21orF96). Although the functions of the RUNX1 have been identified in different diseases, the function and its potential mechanisms of the lncRNA RUNX1-IT1 in HCC still remains to be largely unknown. In this study, we verified that the expression of LncRNA RUNX1-IT1 was decreased in GEO data set, HCC samples and correlated with unfavourable clinicopathologic characteristics and poor prognosis. RUNX1-IT1 repressed HCC cell proliferation, cell cycle progression, invasion and cancer stemness and induced apoptosis in vitro. Overexpression of RUNX1-IT1 impaired the growth, metastasis and stem-like features of HCC cells in vivo. Mechanistically, RUNX1-IT1 directly bound to miR-632 and acted as competing endogenous RNA to facilitate the expression of the miR-632 target gene GSK-3β and subsequently modulate the WNT/β-catenin pathway in HCC cells. Furthermore, hypoxia-driven histone deacetylase 3 (HDAC3), as an upstream regulatory mechanism, was critical for the downregulation of RUNX1-IT1 in HCC. Thus, lncRNA RUNX1-IT1, as a regulator of hypoxia, may function as a potential therapeutic target for conquering HCC.
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