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Ren LX, Zeng BW, Zhu M, Zhao AN, Shi B, Zhang H, Wang DD, Gu JF, Yang Z. A Novel ZNF304/miR-183-5p/FOXO4 Pathway Regulates Cell Proliferation in Clear Cell Renal Carcinoma. Front Oncol 2021; 11:710525. [PMID: 34692488 PMCID: PMC8529286 DOI: 10.3389/fonc.2021.710525] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 09/15/2021] [Indexed: 11/28/2022] Open
Abstract
Zinc-finger protein 304 (ZNF304) plays a critical role in silencing genes through transcription, regulating cell survival, proliferation, apoptosis, and differentiation during development. However, the roles of transcription factor ZNF304 and its clinical significance in clear cell renal carcinoma (ccRCC) remain unclear. In this study, we found that the expression of ZNF304 was downregulated in ccRCC tissues. Lower levels of ZNF304 were correlated with poor survival. Downregulation of ZNF304 promoted ccRCC cell growth in vitro, whereas overexpression of ZNF304 inhibited growth. Our results indicated that miR-183-5p/FOXO4 mediated ZNF304 regulation of cell growth. Interestingly, we revealed that ZNF304 promoted FOXO4 expression in ccRCC cells. Mechanistically, ZNF304 binds to miR-183 promoter and inhibits miR-183-5p transcription. Furthermore, the expression of miR-183-5p wes increased in ccRCC tissues, and the upregulation of miR-183-5p was related to the poor prognosis of ccRCC patients. miR-183-5p upregulation repressed the expression of FOXO4 and promoted ccRCC progression. These results demonstrated that ZNF304/miR-183-5p/FOXO4 axis played essential role in promoting ccRCC progression, which suggests that disruption of this axis may be a potential therapeutic target in ccRCC.
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Affiliation(s)
- Li-Xin Ren
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bo-Wen Zeng
- Department of Urology, Affiliated Hospital of Sergeant School of Army Medical University, Shijiazhuang, China
| | - Meng Zhu
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - An-Ning Zhao
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bei Shi
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hong Zhang
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dan-Dan Wang
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jun-Fei Gu
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhan Yang
- Department of Urology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Sumithra B, Jayanthi VSPKSA, Manne HC, Gunda R, Saxena U, Das AB. Antibody-based biosensor to detect oncogenic splicing factor Sam68 for the diagnosis of lung cancer. Biotechnol Lett 2020; 42:2501-2509. [PMID: 32648188 DOI: 10.1007/s10529-020-02951-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/28/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The present work aimed to investigate the potential utility of Sam68 protein as a prognostic marker in lung cancer. Then an electrochemical immunosensor is fabricated that is sufficiently sensitive to detect Sam68. RESULTS Analysis of stage-specific Lung cancer microarray data shows that differential expression of Sam68 is associated with cancer stage and monotonically increases from early tumor stage to advanced metastatic stage. Moreover, the higher expression of Sam68 results in reduced survival of lung cancer patients. Based on these observations, an electrochemical immunosensor was developed for the quantification of Sam68 protein. The target protein was captured by the Anti-Sam68 antibody that was immobilized on the modified Glassy carbon electrode. The stepwise assembly process was characterized by cyclic voltammetry and electrochemical impedance spectroscopy. This fabricated immunosensor displayed good analytical performance in comparison to commercial ELISA kit with good sensitivity, lower detection limit (LOD) of 10.5 pg mL-1, and wide linear detection range from 1 to 5 μg mL-1. This method was validated with satisfactory detection of Sam68 protein in lung adenocarcinoma cell line, NCI-H23. Besides, spike and recovery assay reconfirm that the sensor can precisely quantify Sam68 protein in a complex physiological sample. CONCLUSION We conclude Sam68 as a valuable prognostic biomarker for early detection of lung cancer. Moreover, we report the first study on the development of an electrochemical immunosensor for the detection of Sam68. The fabricated immunosensor exhibit excellent analytical performance, which can accurately predict the lung cancer patient pathological state.
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Affiliation(s)
- B Sumithra
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana, 506004, India
| | | | - Hari Chandana Manne
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana, 506004, India
| | - Rashmika Gunda
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana, 506004, India
| | - Urmila Saxena
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana, 506004, India.
| | - Asim Bikas Das
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, Telangana, 506004, India.
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Cerasuolo A, Buonaguro L, Buonaguro FM, Tornesello ML. The Role of RNA Splicing Factors in Cancer: Regulation of Viral and Human Gene Expression in Human Papillomavirus-Related Cervical Cancer. Front Cell Dev Biol 2020; 8:474. [PMID: 32596243 PMCID: PMC7303290 DOI: 10.3389/fcell.2020.00474] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/20/2020] [Indexed: 12/12/2022] Open
Abstract
The spliceosomal complex components, together with the heterogeneous nuclear ribonucleoproteins (hnRNPs) and serine/arginine-rich (SR) proteins, regulate the process of constitutive and alternative splicing, the latter leading to the production of mRNA isoforms coding multiple proteins from a single pre-mRNA molecule. The expression of splicing factors is frequently deregulated in different cancer types causing the generation of oncogenic proteins involved in cancer hallmarks. Cervical cancer is caused by persistent infection with oncogenic human papillomaviruses (HPVs) and constitutive expression of viral oncogenes. The aberrant activity of hnRNPs and SR proteins in cervical neoplasia has been shown to trigger the production of oncoproteins through the processing of pre-mRNA transcripts either derived from human genes or HPV genomes. Indeed, hnRNP and SR splicing factors have been shown to regulate the production of viral oncoprotein isoforms necessary for the completion of viral life cycle and for cell transformation. Target-therapy strategies against hnRNPs and SR proteins, causing simultaneous reduction of oncogenic factors and inhibition of HPV replication, are under development. In this review, we describe the current knowledge of the functional link between RNA splicing factors and deregulated cellular as well as viral RNA maturation in cervical cancer and the opportunity of new therapeutic strategies.
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Affiliation(s)
| | | | | | - Maria Lina Tornesello
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumouri IRCCS–Fondazione G. Pascale, Naples, Italy
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Sumithra B, Saxena U, Das AB. A comprehensive study on genome-wide coexpression network of KHDRBS1/Sam68 reveals its cancer and patient-specific association. Sci Rep 2019; 9:11083. [PMID: 31366900 PMCID: PMC6668649 DOI: 10.1038/s41598-019-47558-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/19/2019] [Indexed: 12/11/2022] Open
Abstract
Human KHDRBS1/Sam68 is an oncogenic splicing factor involved in signal transduction and pre-mRNA splicing. We explored the molecular mechanism of KHDRBS1 to be a prognostic marker in four different cancers. Within specific cancer, including kidney renal papillary cell carcinoma (KIRP), lung adenocarcinoma (LUAD), acute myeloid leukemia (LAML), and ovarian cancer (OV), KHDRBS1 expression is heterogeneous and patient specific. In KIRP and LUAD, higher expression of KHDRBS1 affects the patient survival, but not in LAML and OV. Genome-wide coexpression analysis reveals genes and transcripts which are coexpressed with KHDRBS1 in KIRP and LUAD, form the functional modules which are majorly involved in cancer-specific events. However, in case of LAML and OV, such modules are absent. Irrespective of the higher expression of KHDRBS1, the significant divergence of its biological roles and prognostic value is due to its cancer-specific interaction partners and correlation networks. We conclude that rewiring of KHDRBS1 interactions in cancer is directly associated with patient prognosis.
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Affiliation(s)
- B Sumithra
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, 506004, Telangana, India
| | - Urmila Saxena
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, 506004, Telangana, India
| | - Asim Bikas Das
- Department of Biotechnology, National Institute of Technology Warangal, Warangal, 506004, Telangana, India.
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Xiao J, Wang Q, Yang Q, Wang H, Qiang F, He S, Cai J, Yang L, Wang Y. Clinical significance and effect of Sam68 expression in gastric cancer. Oncol Lett 2018; 15:4745-4752. [PMID: 29552114 PMCID: PMC5840748 DOI: 10.3892/ol.2018.7930] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2016] [Accepted: 08/11/2017] [Indexed: 12/26/2022] Open
Abstract
Gastric cancer is one of the most common types of malignancy worldwide. However, the molecular mechanisms of cancer development remain unclear. Src-associated in mitosis of 68 kDa (Sam68) is involved in cell proliferation, transformation, tumorigenesis and metastasis in several types of cancer. The present study aimed to assess the expression and function of Sam68 in human gastric cancer. Western blot analysis and immunohistochemistry indicated that Sam68 expression was increased in tumor samples and the levels were associated with the grade of malignancy. High Sam68 expression was associated with the poor prognosis of patients with gastric cancer. In vitro, following knockdown of Sam68 by transfection of gastric cancer cells with small interfering RNA, the cell viability, cell cycle progress, migration and invasion were decreased. The results of the present study revealed that Sam68 may be a novel prognostic factor for, and is associated with cell growth, migration and invasion in, gastric cancer.
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Affiliation(s)
- Jinzhang Xiao
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Qiuhong Wang
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Qichang Yang
- The Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Hua Wang
- The Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Fulin Qiang
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Song He
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Jin Cai
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Lei Yang
- Department of Internal Oncology Medicine, Affiliated Nantong Cancer Hospital, Nantong University, Nantong, Jiangsu 226000, P.R. China
| | - Yingying Wang
- The Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong, Jiangsu 226000, P.R. China
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Curcumin Induces p53-Null Hepatoma Cell Line Hep3B Apoptosis through the AKT-PTEN-FOXO4 Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:4063865. [PMID: 28769986 PMCID: PMC5523542 DOI: 10.1155/2017/4063865] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 06/06/2017] [Indexed: 12/19/2022]
Abstract
Objective Curcumin (diferuloylmethane) is a yellow-colored polyphenol with antiproliferative and proapoptotic activities to various types of cancer cells. This study explored the mechanism by which curcumin induces p53-null hepatoma cell apoptosis. Results AKT, FOXO1, and FOXO3 proteins were downregulated after curcumin treatment. Conversely, PTEN was upregulated. Subcellular fractionations revealed that the FOXO4 protein translocated from cytosol into the nucleus after curcumin treatment. Overexpression of FOXO4 increases the sensitivity of Hep3B cells to curcumin. Knockdown of the FOXO4 gene by siRNA inhibits the proapoptotic effects of curcumin on Hep3B cell. Conclusions This study revealed the AKT/PTEN/FOXO4 pathway as a potential candidate of target for treatment of p53-null liver cancers.
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RIG-I inhibits pancreatic β cell proliferation through competitive binding of activated Src. Sci Rep 2016; 6:28914. [PMID: 27349479 PMCID: PMC4923948 DOI: 10.1038/srep28914] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 06/10/2016] [Indexed: 02/06/2023] Open
Abstract
Nutrition is a necessary condition for cell proliferation, including pancreatic β cells; however, over-nutrition, and the resulting obesity and glucolipotoxicity, is a risk factor for the development of Type 2 diabetes mellitus (DM), and causes inhibition of pancreatic β-cells proliferation and their loss of compensation for insulin resistance. Here, we showed that Retinoic acid (RA)-inducible gene I (RIG-I) responds to nutrient signals and induces loss of β cell mass through G1 cell cycle arrest. Risk factors for type 2 diabetes (e.g., glucolipotoxicity, TNF-α and LPS) activate Src in pancreatic β cells. Elevated RIG-I modulated the interaction of activated Src and STAT3 by competitive binding to STAT3. Elevated RIG-I downregulated the transcription of SKP2, and increased the stability and abundance of P27 protein in a STAT3-dependent manner, which was associated with inhibition of β cell growth elicited by Src. These results supported a role for RIG-I in β cell mass loss under conditions of metabolic surplus and suggested that RIG-I-induced blocking of Src/STAT3 signalling might be involved in G1 phase cycle arrest through the Skp2/P27 pathway in pancreatic β cells.
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Ouyang J, Sun Y, Li W, Zhang W, Wang D, Liu X, Lin Y, Lian B, Xie L. dbPHCC: a database of prognostic biomarkers for hepatocellular carcinoma that provides online prognostic modeling. Biochim Biophys Acta Gen Subj 2016; 1860:2688-95. [PMID: 26940364 DOI: 10.1016/j.bbagen.2016.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/27/2016] [Accepted: 02/26/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most common malignant cancers with a poor prognosis. For decades, more and more biomarkers were found to effect on HCC prognosis, but these studies were scattered and there were no unified identifiers. Therefore, we built the database of prognostic biomarkers and models for hepatocellular carcinoma (dbPHCC). METHODS dbPHCC focuses on biomarkers which were related to HCC prognosis by traditional experiments rather than high-throughput technology. All of the prognostic biomarkers came from literatures issued during 2002 to 2014 in PubMed and were manually selected. dbPHCC collects comprehensive information of candidate biomarkers and HCC prognosis. RESULTS dbPHCC mainly contains 567 biomarkers: 323 proteins, 154 genes, and 90 microRNAs. For each biomarker, the reference information, experimental conditions, and prognostic information are shown. Based on two available patient cohort data sets, an exemplified prognostic model was constructed using 15 phosphotransferases in dbPHCC. The web interface does not only provide a full range of browsing and searching, but also provides online analysis tools. dbPHCC is available at http://lifecenter.sgst.cn/dbphcc/ CONCLUSIONS dbPHCC provides a comprehensive and convenient search and analysis platform for HCC prognosis research. GENERAL SIGNIFICANCE dbPHCC is the first database to focus on experimentally verified individual biomarkers, which are related to HCC prognosis. Prognostic markers in dbPHCC have the potential to be therapeutic drug targets and may help in designing new treatments to improve survival of HCC patients. This article is part of a Special Issue entitled "System Genetics" Guest Editor: Dr. Yudong Cai and Dr. Tao Huang.
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Affiliation(s)
- Jian Ouyang
- Biomedical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Ying Sun
- Biomedical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Wei Li
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science and Technology, Shanghai 201203, China
| | - Wen Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of People Libration Army General Hospital, Beijing 100048, China
| | - Dandan Wang
- Biomedical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xiangqiong Liu
- Biomedical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yong Lin
- Biomedical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Baofeng Lian
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science and Technology, Shanghai 201203, China; Shanghai Jiaotong University Affiliated First People's Hospital, Shanghai 200240, China.
| | - Lu Xie
- Shanghai Center for Bioinformation Technology, Shanghai Academy of Science and Technology, Shanghai 201203, China.
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