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Dey N, Koumenis C, Ruggero D, Fuchs SY, Diehl JA. miR-217 Regulates Normal and Tumor Cell Fate Following Induction of Endoplasmic Reticulum Stress. Mol Cancer Res 2024; 22:360-372. [PMID: 38236939 PMCID: PMC10987263 DOI: 10.1158/1541-7786.mcr-23-0676] [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: 08/23/2023] [Revised: 11/28/2023] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
Rapidly proliferating cancer cells require a microenvironment where essential metabolic nutrients like glucose, oxygen, and growth factors become scarce as the tumor volume surpasses the established vascular capacity of the tissue. Limits in nutrient availability typically trigger growth arrest and/or apoptosis to prevent cellular expansion. However, tumor cells frequently co-opt cellular survival pathways thereby favoring cell survival under this environmental stress. The unfolded protein response (UPR) pathway is typically engaged by tumor cells to favor adaptation to stress. PERK, an endoplasmic reticulum (ER) protein kinase and UPR effector is activated in tumor cells and contributes tumor cell adaptation by limiting protein translation and balancing redox stress. PERK also induces miRNAs that contribute to tumor adaptation. miR-211 and miR-216b were previously identified as PERK-ATF4-regulated miRNAs that regulate cell survival. We have identified another PERK-responsive miRNA, miR-217, with increased expression under prolonged ER stress. Key targets of miR-217 are identified as TRPM1, the host gene for miR-211 and EZH2. Evidence is provided that miR-217 expression is essential for the rapid loss of miR-211 in prolonged ER stress and provides a functional link for determining whether cells adapt to stress or commit to apoptosis. IMPLICATIONS PERK-dependent induction of miR-217 limits accumulation and function of the prosurvival miRNA, miR-211, to establish cell fate and promote cell commitment to apoptosis.
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Affiliation(s)
- Neekkan Dey
- Department of Biochemistry, Case Comprehensive Cancer Center; Case Western Reserve University, Cleveland, OH 44106, USA
| | - Costas Koumenis
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Davide Ruggero
- Departments of Urology and Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Serge Y. Fuchs
- Dept. of Biomedical Sciences, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - J. Alan Diehl
- Department of Biochemistry, Case Comprehensive Cancer Center; Case Western Reserve University, Cleveland, OH 44106, USA
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Weidle UH, Nopora A. Up-regulated Circular RNAs in Colorectal Cancer: New Entities for Therapy and Tools for Identification of Therapeutic Targets. Cancer Genomics Proteomics 2023; 20:132-153. [PMID: 36870691 PMCID: PMC9989668 DOI: 10.21873/cgp.20369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 03/06/2023] Open
Abstract
Patients with disseminated colorectal cancer have a dismal prognosis with a 5-year survival rate of only 13%. In order to identify new treatment modalities and new targets, we searched the literature for up-regulated circular RNAs in colorectal cancer which induce tumor growth in corresponding preclinical in vivo models. We identified nine circular RNAs that mediate resistance against chemotherapeutic agents, seven that up-regulate transmembrane receptors, five that induce secreted factors, nine that activate signaling components, five which up-regulate enzymes, six which activate actin-related proteins, six which induce transcription factors and two which up-regulate the MUSASHI family of RNA binding proteins. All of the circular RNAs discussed in this paper induce the corresponding targets by sponging microRNAs (miRs) and can be inhibited by RNAi or shRNA in vitro and in xenograft models. We have focused on circular RNAs with demonstrated activity in preclinical in vivo models because the latter is an important milestone in drug development. All circular RNAs with in vitro activity only data are not referenced in this review. The translational impact of inhibition of these circular RNAs and of the identified targets for treatment of colorectal cancer (CRC) are discussed.
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Affiliation(s)
- Ulrich H Weidle
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | - Adam Nopora
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
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Dutta M, Das B, Mohapatra D, Behera P, Senapati S, Roychowdhury A. MicroRNA-217 modulates pancreatic cancer progression via targeting ATAD2. Life Sci 2022; 301:120592. [PMID: 35504332 DOI: 10.1016/j.lfs.2022.120592] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/18/2022] [Accepted: 04/26/2022] [Indexed: 12/11/2022]
Abstract
AIMS Pancreatic cancer is a fatal disease across the world with 5 years survival rate less than 10%. ATAD2, a valid cancer drug-target, is overexpressed in pancreatic malignancy with high oncogenic potential. However, the mechanism of the upregulated expression of ATAD2 in pancreatic cancer is unknown. Since microRNAs (miRNAs) could potentially control target mRNA expressions, and are involved in cancer as tumor-suppressors, oncomiR or both, we examine the possibility of miRNA-mediated regulation of ATAD2 in pancreatic cancer cells (PCCs). MAIN METHODS Our in-silico approach first identifies hsa-miR-217 as a candidate regulator for ATAD2 expression. For further validation, luciferase reporter assay is performed. We overexpress hsa-miRNA-217 and assess cellular viability, migration, apoptosis and cell cycle progression in three different PCCs (BxPC3, PANC1, and MiaPaCa2). KEY FINDINGS We find hsa-miRNA-217 has potential binding site at the 3'UTR of ATAD2. Luciferase assay confirms that ATAD2 is a direct target of hsa-miR-217. Overexpression of hsa-miR-217 drastically downregulates ATAD2 expression in PCCs, thus, corroborating binding studies. The elevated expression of hsa-miRNA-217 diminishes cell proliferation and migration as well as induces apoptosis and cell cycle arrest in PCCs. Finally, siRNA mediated ATAD2 knockdown or overexpression of hsa-miRNA-217 in PCCs showed inactivation of the AKT signaling pathway. Therefore, hsa-miR-217 abrogates pancreatic cancer progression through inactivation of the AKT signaling pathway and this might be partly due to miR-217 mediated suppression of ATAD2 expression. SIGNIFICANCE The application of hsa-miR-217 mimic could be a promising therapeutic strategy for the treatment of pancreatic cancer patients in near future.
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Affiliation(s)
- Madhuri Dutta
- Biochemistry and Cell Biology Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Odisha 752050, India
| | - Biswajit Das
- Tumor Microenvironment and Animal Models Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha 751023, India
| | - Debasish Mohapatra
- Tumor Microenvironment and Animal Models Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha 751023, India
| | - Padmanava Behera
- Tumor Microenvironment and Animal Models Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha 751023, India; Department of Microbiology, Shiksha 'O' Anusandhan (SOA) University, Bhubaneswar, Odisha 751003, India
| | - Shantibhusan Senapati
- Tumor Microenvironment and Animal Models Laboratory, Institute of Life Sciences, Bhubaneswar, Odisha 751023, India.
| | - Anasuya Roychowdhury
- Biochemistry and Cell Biology Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Odisha 752050, India.
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Yang L, Liu S, Yang L, Xu B, Wang M, Kong X, Song Z. miR‑217‑5p suppresses epithelial‑mesenchymal transition and the NF‑κB signaling pathway in breast cancer via targeting of metadherin. Oncol Lett 2022; 23:162. [PMID: 35399330 PMCID: PMC8987938 DOI: 10.3892/ol.2022.13282] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/11/2022] [Indexed: 11/17/2022] Open
Abstract
MicroRNAs (miRNAs) have been associated with a number of human malignancies, including breast cancer (BC). However, the expression, biological function and fundamental underlying mechanism of miR-217-5p in BC remain unclear. Therefore, in the present study, the expression levels of miR-217-5p and metadherin (MTDH) were examined in BC tissues and BC cell lines using reverse transcription-quantitative PCR. Cell Counting Kit-8 assays, cell proliferation, wound healing assays, Transwell assays and western blotting were used to examine the effects of miR-217-5p on cell proliferation, migration, the epithelial-mesenchymal transition (EMT) and NF-κB signaling pathway expression. The direct relationship between miR-217-5p and MTDH was assessed using a dual-luciferase reporter assay. The results demonstrated that significantly reduced expression levels of miR-217-5p but significantly increased mRNA expression levels of MTDH were observed in BC tissues from 35 patients with BC compared with non-tumor breast tissues. Furthermore, BC cell lines SK-BR3 and BT549 expressed miR-217-5p at markedly lower levels and MTDH at markedly higher levels compared with the breast epithelial MCF10A cell line. miR-217-5p overexpression significantly inhibited cell proliferation, invasion and migration and suppressed the EMT in BC cells. miR-217-5p overexpression also inhibited the NF-κB signaling pathway by markedly decreasing p65 mRNA and protein expression levels but significantly increasing IκBα expression levels. Furthermore, miR-217-5p knockdown markedly increased MTDH mRNA and protein expression levels. The expression levels of miR-217-5p were negatively correlated with those of MTDH in BC tissues. These results suggested that restoration of MTDH expression levels could potentially attenuate the inhibitory effects of miR-217-5p overexpression on BC cell proliferation. Therefore, in conclusion miR-217-5p overexpression may inhibit cell migration, invasion, the EMT and NF-κB signaling pathway in BC via targeting of MTDH. miR-217-5p may serve as an important potential target in BC therapy.
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Affiliation(s)
- Lixian Yang
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Shuo Liu
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Liu Yang
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Bin Xu
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Meiqi Wang
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Xiangshun Kong
- Department of Breast Surgery, Xingtai People's Hospital, Xingtai, Hebei 054000, P.R. China
| | - Zhenchuan Song
- Breast Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
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Abdel Ghafar MT, Soliman NA. Metadherin (AEG-1/MTDH/LYRIC) expression: Significance in malignancy and crucial role in colorectal cancer. Adv Clin Chem 2022; 106:235-280. [PMID: 35152973 DOI: 10.1016/bs.acc.2021.09.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Metadherin (AEG-1/MTDH/LYRIC) is a 582-amino acid transmembrane protein, encoded by a gene located at chromosome 8q22, and distributed throughout the cytoplasm, peri-nuclear region, nucleus, and nucleolus as well as the endoplasmic reticulum (ER). It contains several structural and interacting domains through which it interacts with transcription factors such as nuclear factor-κB (NF-κB), promyelocytic leukemia zinc finger (PLZF), staphylococcal nuclease domain containing 1 (SND1) and lung homing domain (LHD). It is regulated by miRNAs and mediates its oncogenic function via activation of cell proliferation, survival, migration and metastasis, as well as, angiogenesis and chemoresistance via phosphatidylinositol-3-kinase/AKT (PI3K/AKT), NF-κB, mitogen-activated protein kinase (MAPK) and Wnt signaling pathways. In this chapter, metadherin is reviewed highlighting its role in mediating growth, metastasis and chemoresistance in colorectal cancer (CRC). Metadherin, as well as its variants, and antibodies are associated with CRC progression, poorer prognosis, decreased survival and advanced clinico-pathology. The potential of AEG-1/MTDH/LYRIC as a diagnostic and prognostic marker as well as a therapeutic target in CRC is explored.
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Affiliation(s)
| | - Nema A Soliman
- Department of Medical Biochemistry, Faculty of Medicine, Tanta University, Tanta, Egypt
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Hamidi AA, Zangoue M, Kashani D, Zangouei AS, Rahimi HR, Abbaszadegan MR, Moghbeli M. MicroRNA-217: a therapeutic and diagnostic tumor marker. Expert Rev Mol Diagn 2021; 22:61-76. [PMID: 34883033 DOI: 10.1080/14737159.2022.2017284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Cancer as one of the most common causes of death has always been one of the major health challenges globally. Since, the identification of tumors in the early tumor stages can significantly reduce mortality rates; it is required to introduce novel early detection tumor markers. MicroRNAs (miRNAs) have pivotal roles in regulation of cell proliferation, migration, apoptosis, and tumor progression. Moreover, due to the higher stability of miRNAs than mRNAs in body fluids, they can be considered as non-invasive diagnostic or prognostic markers in cancer patients. AREAS COVERED In the present review we have summarized the role of miR-217 during tumor progressions. The miR-217 functions were categorized based on its target molecular mechanisms and signaling pathways. EXPERT OPINION It was observed that miR-217 mainly exerts its function by regulation of the transcription factors during tumor progressions. The WNT, MAPK, and PI3K/AKT signaling pathways were also important molecular targets of miR-217 in different cancers. The present review clarifies the molecular biology of miR-217 and paves the way of introducing miR-217 as a non-invasive diagnostic marker and therapeutic target in cancer therapy.
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Affiliation(s)
- Amir Abbas Hamidi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Malihe Zangoue
- Department of Anesthesiology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Daniel Kashani
- Department of Internal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY, USA
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Rahimi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Huang ZM, Wang H, Ji ZG. Bladder mesenchymal stromal cell-derived exosomal miRNA-217 modulates bladder cancer cell survival through Hippo-YAP pathway. Inflamm Res 2021; 70:959-969. [PMID: 34390377 DOI: 10.1007/s00011-021-01494-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/04/2021] [Accepted: 08/06/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Donor cell-derived exosomes regulate recipient cell functions. The aim of this study was to investigate the effect of human normal bladder stromal cell (hBSC) derived exosomal miR-217 on bladder cell cancer proliferation and migration. METHODS Human BSCs were transfected with miR-217 mimic or inhibitor and hBSC-derived exosomes were isolated. Human bladder cancer cell lines (T24 and 5367) were co-cultured with hBSC-derived exosomal miR-217 mimic or inhibitor. Proliferation, migration, and apoptosis of the bladder cancer cells were assessed by Edu assay, Transwell migration assay, and Annexin V assay. RESULTS Expression of miR-217 was significantly higher in the T24 and 5367 cell lines (P < 0.01). Exosomal miR-217 mimic enhanced proliferation and migration of T24 and 5367 cells, but inhibited apoptosis of the cells (P < 0.01); in contrast, exosomal miR-217 inhibitor suppressed proliferation and migration but stimulated apoptosis of the two cancer cell lines (P < 0.01). Moreover, exosomal miR-217 mimic stimulated YAP and its target proteins including Cyr61, CTGF, and ANKRD1 (P < 0.01), and in contrast, exosomal miR-217 inhibitor suppressed YAP and its target proteins (P < 0.01). CONCLUSION These findings suggested that hBSC-derived exosomal miR-217 may act as oncogene in bladder cancer cells, and that Hippo-YAP signaling pathway maybe the target for miR-217 in the bladder cancer cell lines.
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Affiliation(s)
- Zhong-Ming Huang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing, Dongcheng, Beijing, 100730, China
| | - Hai Wang
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing, Dongcheng, Beijing, 100730, China
| | - Zhi-Gang Ji
- Department of Urology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, No.1 Shuaifuyuan Wangfujing, Dongcheng, Beijing, 100730, China.
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Sriramulu S, Sun XF, Malayaperumal S, Ganesan H, Zhang H, Ramachandran M, Banerjee A, Pathak S. Emerging Role and Clinicopathological Significance of AEG-1 in Different Cancer Types: A Concise Review. Cells 2021; 10:1497. [PMID: 34203598 PMCID: PMC8232086 DOI: 10.3390/cells10061497] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/21/2021] [Accepted: 05/28/2021] [Indexed: 12/29/2022] Open
Abstract
Tumor breakthrough is driven by genetic or epigenetic variations which assist in initiation, migration, invasion and metastasis of tumors. Astrocyte elevated gene-1 (AEG-1) protein has risen recently as the crucial factor in malignancies and plays a potential role in diverse complex oncogenic signaling cascades. AEG-1 has multiple roles in tumor growth and development and is found to be involved in various signaling pathways of: (i) Ha-ras and PI3K/AKT; (ii) the NF-κB; (iii) the ERK or mitogen-activated protein kinase and Wnt or β-catenin and (iv) the Aurora-A kinase. Recent studies have confirmed that in all the hallmarks of cancers, AEG-1 plays a key functionality including progression, transformation, sustained angiogenesis, evading apoptosis, and invasion and metastasis. Clinical studies have supported that AEG-1 is actively intricated in tumor growth and progression which includes esophageal squamous cell, gastric, colorectal, hepatocellular, gallbladder, breast, prostate and non-small cell lung cancers, as well as renal cell carcinomas, melanoma, glioma, neuroblastoma and osteosarcoma. Existing studies have reported that AEG-1 expression has been induced by Ha-ras through intrication of PI3K/AKT signaling. Conversely, AEG-1 also activates PI3K/AKT pathway and modulates the defined subset of downstream target proteins via crosstalk between the PI3K/AKT/mTOR and Hedgehog signaling cascade which further plays a crucial role in metastasis. Thus, AEG-1 may be employed as a biomarker to discern the patients of those who are likely to get aid from AEG-1-targeted medication. AEG-1 may play as an effective target to repress tumor development, occlude metastasis, and magnify the effectiveness of treatments. In this review, we focus on the molecular mechanism of AEG-1 in the process of carcinogenesis and its involvement in regulation of crosstalk between the PI3K/AKT/mTOR and Hedgehog signaling. We also highlight the multifaceted functions, expression, clinicopathological significance and molecular inhibitors of AEG-1 in various cancer types.
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Affiliation(s)
- Sushmitha Sriramulu
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
| | - Xiao-Feng Sun
- Department of Oncology, Linköping University, SE-581 83 Linköping, Sweden
- Department of Biomedical and Clinical Sciences, Linköping University, SE-581 83 Linköping, Sweden
| | - Sarubala Malayaperumal
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
| | - Harsha Ganesan
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
| | - Hong Zhang
- Department of Medical Sciences, School of Medicine, Orebro University, SE-701 82 Orebro, Sweden;
| | - Murugesan Ramachandran
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
| | - Antara Banerjee
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
| | - Surajit Pathak
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Academy of Research and Education (CARE), Chettinad Hospital and Research Institute (CHRI), Kelambakkam, Chennai 603103, India; (S.S.); (S.M.); (H.G.); (M.R.); (A.B.)
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Exosome-Mediated Transfer of circ_0000338 Enhances 5-Fluorouracil Resistance in Colorectal Cancer through Regulating MicroRNA 217 (miR-217) and miR-485-3p. Mol Cell Biol 2021; 41:MCB.00517-20. [PMID: 33722958 DOI: 10.1128/mcb.00517-20] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 02/16/2021] [Indexed: 02/06/2023] Open
Abstract
Exosomes are microvesicles secreted by body cells for intercellular communication. The circular RNA circ_0000338 was found to be present in extracellular vesicles and improve the chemoresistance of colorectal cancer (CRC) cells. However, the role of exosomal circ_0000338 in 5-fluorouracil (5-FU) resistance in CRC is largely unknown. The levels of circ_0000338, microRNA 217 (miR-217), and miR-485-3p were detected using quantitative real-time PCR (qRT-PCR). The 50% inhibitory concentration (IC50) values of cells for 5-FU, cell proliferation, and apoptosis were evaluated using cell counting kit 8 (CCK-8), colony formation, flow cytometry, and Western blot assays. The interaction between miR-217 or miR-485-3p and circ_0000338 was confirmed by RNA immunoprecipitation (RIP), dual-luciferase reporter, and pulldown assays. Exosomes were isolated by ultracentrifugation and qualified by transmission electron microscopy (TEM), Nanosight tracking analysis (NTA), and Western blotting. Xenograft models were performed to analyze whether circ_0000338-loaded exosomes could increase resistance of CRC cells to 5-FU in vivo The circ_0000338 level was elevated in 5-FU-resistant CRC tissues and cells, and circ_0000338 knockdown sensitized 5-FU-resistant CRC cells to 5-FU through enhancing apoptosis and decreasing proliferation in vitro Mechanistically, circ_0000338 directly bound to miR-217 and miR-485-3p, and the inhibition of miR-217 or miR-485-3p reversed the effects of circ_0000338 knockdown on cell 5-FU resistance in CRC. Additionally, extracellular circ_0000338 could be incorporated into secreted exosomes and transmitted to 5-FU-sensitive cells. Treatment-sensitive cells with exosomes containing circ_0000338 reduced the 5-FU response in CRC both in vitro and in vivo Besides that, the exosomal circ_0000338 concentration was higher in patients exhibiting resistance to 5-FU and showed good diagnostic efficiency in 5-FU-resistant CRC. The delivery of circ_0000338 via exosomes enhanced 5-FU resistance in CRC through negative regulation of miR-217 and miR-485-3p, indicating a promising diagnostic and therapeutic marker for 5-FU-based chemotherapy in CRC patients.
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Sohrabi E, Rezaie E, Heiat M, Sefidi-Heris Y. An Integrated Data Analysis of mRNA, miRNA and Signaling Pathways in Pancreatic Cancer. Biochem Genet 2021; 59:1326-1358. [PMID: 33813720 DOI: 10.1007/s10528-021-10062-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 03/16/2021] [Indexed: 02/06/2023]
Abstract
Although many genes and miRNAs have been reported for various cancers, pancreatic cancer's specific genes or miRNAs have not been studied precisely yet. Therefore, we have analyzed the gene and miRNA expression profile of pancreatic cancer data in the gene expression omnibus (GEO) database. The microarray-derived miRNAs and mRNAs were annotated by gene ontology (GO) and signaling pathway analysis. We also recognized mRNAs that were targeted by miRNA through the mirDIP database. An integrated analysis of the microarray revealed that only 6 out of 43 common miRNAs had significant differences in their expression profiles between the tumor and normal groups (P value < 0.05 and |log Fold Changes (logFC)|> 1). The hsa-miR-210 had upregulation, whereas hsa-miR-375, hsa-miR-216a, hsa-miR-217, hsa-miR-216b and hsa-miR-634 had downregulation in pancreatic cancer (PC). The analysis results also revealed 109 common mRNAs by microarray and mirDIP 4.1 databases. Pathway analysis showed that amoebiasis, axon guidance, PI3K-Akt signaling pathway, absorption and focal adhesion, adherens junction, platelet activation, protein digestion, human papillomavirus infection, extracellular matrix (ECM) receptor interaction, and riboflavin metabolism played important roles in pancreatic cancer. GO analysis revealed the significant enrichment in the three terms of biological process, cellular component, and molecular function, which were identified as the most important processes associated strongly with pancreatic cancer. In conclusion, DTL, CDH11, COL5A1, ITGA2, KIF14, SMC4, VCAN, hsa-mir-210, hsa-mir-217, hsa-mir-216a, hsa-mir-216b, hsa-mir-375 and hsa-mir-634 can be reported as the novel diagnostic or even therapeutic markers for the future studies. Also, the hsa-mir-107 and hsa-mir-125a-5p with COL5A1, CDH11 and TGFBR1 genes can be introduced as major miRNA and genes on the miRNA-drug-mRNA network. The new regulatory network created in our study could give a deeper knowledge of the pancreatic cancer.
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Affiliation(s)
- Ehsan Sohrabi
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Science, Tehran, Iran
| | - Ehsan Rezaie
- Molecular Biology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Science, P.O. Box 19395-5487, Tehran, Iran.
| | - Mohammad Heiat
- Baqiyatallah Research Center for Gastroenterology and Liver Diseases, Baqiyatallah University of Medical Science, Tehran, Iran
| | - Yousef Sefidi-Heris
- Division of Molecular Cell Biology, Department of Biology, Shiraz University, Shiraz, Iran
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11
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Masi LN, Lotufo PA, Ferreira FM, Rodrigues AC, Serdan TDA, Souza‐Siqueira T, Braga AA, Saldarriaga MEG, Alba‐Loureiro TC, Borges FT, Cury DP, Hirata MH, Gorjão R, Pithon‐Curi TC, Lottenberg SA, Fedeli LMG, Nakaya HTI, Bensenor IJM, Curi R, Hirabara SM. Profiling plasma-extracellular vesicle proteins and microRNAs in diabetes onset in middle-aged male participants in the ELSA-Brasil study. Physiol Rep 2021; 9:e14731. [PMID: 33587339 PMCID: PMC7883809 DOI: 10.14814/phy2.14731] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022] Open
Abstract
We measured plasma-derived extracellular vesicle (EV) proteins and their microRNA (miRNA) cargos in normoglycemic (NG), glucose intolerant (GI), and newly diagnosed diabetes mellitus (DM) in middle-aged male participants of the Brazilian Longitudinal Study of Adult Health (ELSA-Brazil). Mass spectrometry revealed decreased IGHG-1 and increased ITIH2 protein levels in the GI group compared with that in the NG group and higher serotransferrin in EVs in the DM group than in those in the NG and GI groups. The GI group also showed increased serum ferritin levels, as evaluated by biochemical analysis, compared with those in both groups. Seventeen miRNAs were differentially expressed (DEMiRs) in the plasma EVs of the three groups. DM patients showed upregulation of miR-141-3p and downregulation of miR-324-5p and -376c-3p compared with the NG and GI groups. The DM and GI groups showed increased miR-26b-5p expression compared with that in the NG group. The DM group showed decreased miR-374b-5p levels compared with those in the GI group and higher concentrations than those in the NG group. Thus, three EV proteins and five DEMiR cargos have potential prognostic importance for diabetic complications mainly associated with the immune function and iron status of GI and DM patients.
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Affiliation(s)
- Laureane N. Masi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Paulo A. Lotufo
- Center for Clinical and Epidemiologic ResearchUniversity of Sao PauloSao PauloBrazil
| | | | - Alice C. Rodrigues
- Department of PharmacologyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | - Tamires D. A. Serdan
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Talita Souza‐Siqueira
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Aécio A. Braga
- Faculty of Pharmaceutical SciencesUniversity of São PauloSao PauloBrazil
| | | | - Tatiana C. Alba‐Loureiro
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Fernanda T. Borges
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Diego P. Cury
- Department of AnatomyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | - Mario H. Hirata
- Faculty of Pharmaceutical SciencesUniversity of São PauloSao PauloBrazil
| | - Renata Gorjão
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Tania C. Pithon‐Curi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
| | - Simão A. Lottenberg
- Faculty of MedicineUniversity of Sao PauloHospital das ClínicasSao PauloBrazil
| | - Ligia M. G. Fedeli
- Center for Clinical and Epidemiologic ResearchUniversity of Sao PauloSao PauloBrazil
| | - Helder T. I. Nakaya
- Department of PharmacologyInstitute of Biomedical SciencesUniversity of Sao PauloSao PauloBrazil
| | | | - Rui Curi
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
- Butantan InstituteSão PauloBrazil
| | - Sandro M. Hirabara
- Interdisciplinary Post‐graduate Program in Health SciencesCruzeiro do Sul UniversitySao PauloBrazil
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12
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Malayaperumal S, Sriramulu S, Jothimani G, Banerjee A, Pathak S. A Review of AEG-1 Oncogene Regulating MicroRNA Expression in Colon Cancer Progression. Endocr Metab Immune Disord Drug Targets 2021; 21:27-34. [PMID: 32552658 DOI: 10.2174/1871530320666200618104116] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/19/2019] [Accepted: 03/24/2020] [Indexed: 11/22/2022]
Abstract
MicroRNAs are a class of small non-coding RNAs that perform a crucial function in posttranscriptional gene regulation. Dysregulation of these microRNAs is associated with many types of cancer progression. In tumorigenesis, downregulated microRNAs might function as a tumour suppressor by repressing oncogenes, whereas overexpressed miRs might function as oncogenes by suppressing tumour suppressor. Similarly, Metadherin (also known as AEG-1/ LYRIC), is an oncogene, the levels of which are found to be very high in various cancers and play a crucial role in the proliferation of cells and invasion. Our review focuses on the study, which shows the alteration of microRNA expression profile and suppression of carcinogenesis when MTDH/AEG-1 is targeted. It summarises the studies where downregulation and upregulation of AEG-1 and microRNAs, respectively, alter the biological functions of the cell, such as proliferation and apoptosis. Studies have reported that AEG-1 can be direct or indirect target of microRNA, which could provide a new-insight to know the underlying molecular mechanism and might contribute to the progress of new therapeutic strategies for the disease.
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Affiliation(s)
- Sarubala Malayaperumal
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Sushmitha Sriramulu
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Ganesan Jothimani
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Antara Banerjee
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603103, Tamil Nadu, India
| | - Surajit Pathak
- Department of Medical Biotechnology, Faculty of Allied Health Sciences, Chettinad Hospital and Research Institute (CHRI), Chettinad Academy of Research and Education (CARE), Kelambakkam, Chennai 603103, Tamil Nadu, India
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13
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Zhou S, Zhu C, Pang Q, Liu HC. MicroRNA-217: A regulator of human cancer. Biomed Pharmacother 2020; 133:110943. [PMID: 33254014 DOI: 10.1016/j.biopha.2020.110943] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/17/2020] [Accepted: 10/25/2020] [Indexed: 12/13/2022] Open
Abstract
As highly conserved non-coding RNAs of approximately 18-24 nucleotides, microRNAs (miRNAs) regulate the expression of target genes. Multiple studies have demonstrated that miRNAs participate in the regulation of human cancer. MircoRNA-217 (miR-217) participates in the regulation of various tumors by specifically binding target genes and post-transcriptional regulation. In recent years, there have been numerous reports about miR-217 in tumor progression. MiR-217 is known mainly as a tumor suppressor, although some studies have shown that it functions as an oncomiR. Here, we review the current research related to miR-217, including its role in tumor progression and the molecular mechanisms.
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Affiliation(s)
- Shuai Zhou
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Chao Zhu
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Qing Pang
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
| | - Hui Chun Liu
- Department of Hepatobiliary Pancreatic Surgery, The First Affiliated Hospital of Bengbu Medical College, Anhui, 233000, China.
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14
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MGP Promotes Colon Cancer Proliferation by Activating the NF-κB Pathway through Upregulation of the Calcium Signaling Pathway. MOLECULAR THERAPY-ONCOLYTICS 2020; 17:371-383. [PMID: 32405535 PMCID: PMC7210384 DOI: 10.1016/j.omto.2020.04.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/14/2020] [Indexed: 01/01/2023]
Abstract
Matrix Gla protein (MGP), an extracellular matrix protein, is mainly associated with the inhibition of calcification in skeleton, coronary artery, and kidney, and more recently it has also been implicated in cancer. However, the biological function of MGP inside cancer cells and its role in colon cancer (CC) remain largely unknown. MGP expression and its association with clinicopathologic characteristics in CC were analyzed by immunohistochemistry and verified by Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) datasets. The effects of MGP on CC cell proliferation were evaluated via knockdown and overexpression experiments in vitro. Mechanisms of MGP in CC were explored by western blots, quantitative real-time PCR, Fluo-3 AM staining, Rhod-2 AM staining, immunofluorescence, and other techniques. Our study confirmed that MGP was upregulated in different stages of CC and associated with a worse prognosis. MGP could enrich intracellular free Ca2+ concentration and promote nuclear factor κB (NF-κB)/p65 phosphorylation, activating the expression of c-MYC, ICAM-1, and VEGFA. Furthermore, the reduction of intracellular free Ca2+ concentration and the subsequent growth inhibition effect on CC cells induced by small interfering RNA targeting MGP (siMGP) could be rescued by a higher calcium concentration environment. Therefore, MGP promotes the growth and proliferation of CC cells by enriching intracellular calcium concentration and activating the NF-κB pathway, and it could serve as a potential prognostic biomarker in CC patients.
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15
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MiR-217 Inhibits M2-Like Macrophage Polarization by Suppressing Secretion of Interleukin-6 in Ovarian Cancer. Inflammation 2020; 42:1517-1529. [PMID: 31049770 DOI: 10.1007/s10753-019-01004-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Ovarian cancer is one of the most deadly cancers with rapid proliferation and poor prognosis among patients. Therapies focusing on regulation of tumor immunity and microenvironments are developing. MiR-217 was dysregulated in cancer progress and plays important roles in tumorigenesis and metastasis. However, the role of miR-217 in regulation of macrophage polarization and its underlying molecular mechanism remain unclear. The expression of miR-217 in ovarian cancerous tissues and cell lines were assessed by qRT-PCR. And we detected the staining of CD86 and CD206 via flow-cytometry and the levels of Arg-1 and CCR2 by western-blot in order to evaluate M2 macrophage polarization. The targeting regulation of miR-217 on pro-inflammatory factor IL-6 was assessed by dual-luciferase reporter assay and western-blot. ELISA assay was used to evaluate the secretion of IL-6 and IL-10 of cells. MiR-217 was found to be downregulated in ovarian cancerous tissues and cell lines. This downregulation correlated with an increased expression of the IL-6, Arg-1, CCR2, and CD206 gene. The overexpression of miR-217 in SKOV3 cells can inhibit the polarization of macrophages towards an M2-like phenotype. We also found that IL-6 was validated to induce M2 macrophage polarization and its secretion in SKOV-3 cells was inhibited by miR-217 directly. Moreover, we revealed that miR-217 suppressed M2 macrophage polarization partly thought JAK/STAT3 signal pathway. Taken together, these findings indicate that miR-217 inhibits tumor-induced M2 macrophage polarization through targeting of IL-6 and regulation JAK3/STAT3 signaling pathway, which may provide a potential therapeutic target for treating ovarian cancer.
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16
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Huang K, Gao N, Bian D, Zhai Q, Yang P, Li M, Wang X. Correlation between FAK and EGF-Induced EMT in Colorectal Cancer Cells. JOURNAL OF ONCOLOGY 2020; 2020:5428920. [PMID: 32148496 PMCID: PMC7048944 DOI: 10.1155/2020/5428920] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 01/14/2020] [Accepted: 01/23/2020] [Indexed: 12/31/2022]
Abstract
Epithelial-mesenchymal transition (EMT) plays an important role in the invasion and metastasis of colorectal cancer, which is mediated by FAK and EGF. However, whether FAK participates in EMT in colorectal cancer cells through the EGF/EGFR signaling pathway remains unknown. The aim of this study was to investigate the effector mechanisms of FAK in the process of EGF-induced EMT in colorectal cancer cells and to determine whether miR-217 is involved in this process. Caco-2 cancer cells were routinely cultured with and without treatment with 100 ng/mL EGF, and changes in cell morphology were observed using an inverted microscope. In addition, a transwell assay was used to detect cell migration under the condition of EGF treatment. The expression of FAK, pFAK, E-cadherin, vimentin, and β actin was assessed by western blotting, and the expression of miR-217 was assessed using real-time PCR. We found that EGF induced EMT in colorectal cancer cells and enhanced cell migration and invasion ability. Moreover, FAK was involved in the EGF-induced EMT of colorectal cancer cells. EGF upregulated the expression of E-cadherin in colorectal cancer cells by activating FAK, and miR-217 was found to participate in EGF-induced EMT in colorectal cancer cells. Our findings indicate that EGF induces EMT in colorectal cancer cells by activating FAK, and miR-217 is involved in the EGF/FAK/E-cadherin signaling pathway.
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Affiliation(s)
- Kun Huang
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Ningning Gao
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Donglin Bian
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Qixi Zhai
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Puxu Yang
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Mingwei Li
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Xuemei Wang
- Department of Ultrasonic Diagnosis, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
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17
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El-Ashmawy NE, El-Zamarany EA, Khedr EG, Abo-Saif MA. Effect of modification of MTDH gene expression on colorectal cancer aggressiveness. Gene 2019; 698:92-99. [DOI: 10.1016/j.gene.2019.02.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/30/2019] [Accepted: 02/14/2019] [Indexed: 01/16/2023]
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18
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Zhang L, Li C, Cao L, Li H, Zou H, Li H, Pei H. microRNA-877 inhibits malignant progression of colorectal cancer by directly targeting MTDH and regulating the PTEN/Akt pathway. Cancer Manag Res 2019; 11:2769-2781. [PMID: 31114332 PMCID: PMC6497869 DOI: 10.2147/cmar.s194073] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/15/2019] [Indexed: 12/13/2022] Open
Abstract
Background: Recently, microRNA-877-5p (miR-877) was recognized as a cancer-associated miRNA in hepatocellular and renal cell carcinomas. However, little is known regarding its expression pattern and role in colorectal cancer (CRC) tumorigenesis. Material and methods: In the present study, reverse-transcription quantitative polymerase chain reaction was performed to detect miR-877 expression in CRC tissues and cell lines. A series of functional experiments were used to determine the effects of miR-877 upregulation on CRC cell proliferation, colony formation, apoptosis, migration, and invasion. In addition, the regulatory role of miR-877 in tumor growth was examined in vivo using a xenograft experiment. More importantly, the mechanisms underlying the action of miR-877 in CRC were explored. Results: A significant decrease in the expression of miR-877 was observed in CRC tissues and cell lines. Low miR-877 expression correlated with lymph node metastasis and TNM stage of CRC patients. Functional experiments revealed that ectopic expression of miR-877 suppressed CRC cell proliferation and colony formation ability, induced cell apoptosis, inhibited cell migration and invasion in vitro, and reduced tumor growth in vivo. Metadherin (MTDH) was recognized as a direct target of miR-877 in CRC cells. It was notably overexpressed in CRC tissues, and its expression was inversely correlated with that of miR-877 expression. Furthermore, MTDH knockdown simulated the tumor suppressor activity of miR-877 in CRC cells. MTDH restoration impaired the suppressive effects of miR-877 on malignant phenotypes of CRC cells. In addition, miR-877 inhibited the activation of the PTEN/Akt signaling pathway by regulating MTDH expression both in vitro and in vivo. Conclusion: Collectively, these results demonstrate that miR-877 inhibits the progression of CRC, at least partly by the direct targeting of MTDH and regulation of the PTEN/Akt pathway. Thus, miR-877 may serve as a potential therapeutic target for the treatment of patients with CRC.
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Affiliation(s)
- Lunqiang Zhang
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Hunan 410008, People's Republic of China
| | - Chenglong Li
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Hunan 410008, People's Republic of China
| | - Lijun Cao
- Department of Anesthesiology, The Second Xiangya Hospital of Central South University, Hunan 410011, People's Republic of China
| | - Hui Li
- Department of Anesthesiology, The Second Xiangya Hospital of Central South University, Hunan 410011, People's Republic of China
| | - Haiding Zou
- Department of Anesthesiology, The Second Xiangya Hospital of Central South University, Hunan 410011, People's Republic of China
| | - Hongqin Li
- Department of Anesthesiology, The Second Xiangya Hospital of Central South University, Hunan 410011, People's Republic of China
| | - Haiping Pei
- Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Hunan 410008, People's Republic of China
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19
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Activation of EMT in colorectal cancer by MTDH/NF-κB p65 pathway. Mol Cell Biochem 2019; 457:83-91. [DOI: 10.1007/s11010-019-03514-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/23/2019] [Indexed: 12/19/2022]
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20
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Jin H, Shi X, Zhao Y, Peng M, Kong Y, Qin D, Lv X. MicroRNA-30a Mediates Cell Migration and Invasion by Targeting Metadherin in Colorectal Cancer. Technol Cancer Res Treat 2018; 17:1533033818758108. [PMID: 29478367 PMCID: PMC5833214 DOI: 10.1177/1533033818758108] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
MicroRNAs play critical roles in the occurrence and progression in various cancers including colorectal cancer. Here, we found that microRNA-30a expression was significantly downregulated in colorectal cancer tissues compared to adjacent noncancerous tissues, and the suppression levels of microRNA-30a were significantly associated with tumor differentiation and lymph node metastasis. We also discovered that the expression level of microRNA-30a was inversely proportional to the invasive potential of several colorectal cancer cell lines. Moreover, overexpression of microRNA-30a in colorectal cancer cells inhibited activity of cell migration and invasion. Luciferase reporter assay confirmed metadherin could be a direct target of microRNA-30a, as the overexpression of microRNA-30a decreased metadherin expression at both the protein and messenger RNA levels. Furthermore, the knockdown of metadherin expression in SW620 significantly decreased cell metastasis and invasion. The upregulation of metadherin at the protein level negatively correlated with the expression of microRNA-30a in colorectal cancer tissues, and this upregulation could partially attenuate the effect induced by microRNA-30a. These findings indicate that microRNA-30a may act as a tumor suppressor in colorectal cancer and that microRNA-30a represses cell migration and invasion by decreasing metadherin, highlighting the therapeutic potential of microRNA-30a and metadherin in colorectal cancer treatment.
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Affiliation(s)
- Huifang Jin
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaoqing Shi
- 2 Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanteng Zhao
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Mengle Peng
- 3 Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yongkui Kong
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Dongchun Qin
- 2 Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xianping Lv
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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21
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Wang B, Yin M, Cheng C, Jiang H, Jiang K, Shen Z, Ye Y, Wang S. Decreased expression of miR‑490‑3p in colorectal cancer predicts poor prognosis and promotes cell proliferation and invasion by targeting RAB14. Int J Oncol 2018; 53:1247-1256. [PMID: 29916545 DOI: 10.3892/ijo.2018.4444] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 05/16/2018] [Indexed: 11/06/2022] Open
Abstract
Growing evidence indicates a potential role for miR‑490‑3p in tumorigenesis. However, its function in colorectal carcinoma (CRC) remains undefined. In this study, miR‑490‑3p was markedly downregulated in fifty colorectal cancer tissue samples compared with the corresponding adjacent non‑cancerous specimens, by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The expression levels of miR‑490‑3p were closely associated with tumor differentiation and distant metastasis. In addition, both Kaplan-Meier and multivariate analyses indicated CRC patients with elevated miR‑490‑3p amounts had prolonged overall survival. Overexpression of miR‑490‑3p markedly reduced proliferation, colony formation and invasion in CRC cells by enhancing apoptosis and promoting G2/M phase arrest. Furthermore, ectopic expression of miR‑490‑3p resulted in decreased expression of RAB14, which was directly targeted by miR‑490‑3p, as shown by the dual-luciferase reporter gene assay. Finally, in a nude mouse model, miR‑490‑3p overexpression significantly suppressed the growth of CRC cells. The above results indicated that miR‑490‑3p might constitute a prognostic indicator and a novel molecular target for miRNA-based CRC therapy.
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Affiliation(s)
- Bo Wang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Mujun Yin
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Cheng Cheng
- Department of General Surgery, First Hospital of Qinhuangdao, Hebei 066000, P.R. China
| | - Hongpeng Jiang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Kewei Jiang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Zhanlong Shen
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Yingjiang Ye
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Shan Wang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
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22
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Adamopoulos PG, Tsiakanikas P, Scorilas A. Kallikrein-related peptidases and associated microRNAs as promising prognostic biomarkers in gastrointestinal malignancies. Biol Chem 2018; 399:821-836. [DOI: 10.1515/hsz-2017-0342] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 04/17/2018] [Indexed: 02/06/2023]
Abstract
Abstract
Gastrointestinal (GI) malignancies represent a wide spectrum of diseases of the GI tract and its accessory digestive organs, including esophageal (EC), gastric (GC), hepatocellular, pancreatic (PC) and colorectal cancers (CRC). Malignancies of the GI system are responsible for nearly 30% of cancer-related morbidity and approximately 40% of cancer-related mortality, worldwide. For this reason, the discovery of novel prognostic biomarkers that can efficiently provide a better prognosis, risk assessment and prediction of treatment response is an imperative need. Human kallikrein-related peptidases (KLKs) are a subgroup of trypsin and chymotrypsin-like serine peptidases that have emerged as promising prognosticators for many human types of cancer, being aberrantly expressed in cancerous tissues. The aberrant expression of KLKs in human malignancies is often regulated by KLK/microRNAs (miRNAs) interactions, as many miRNAs have been found to target KLKs and therefore alter their expression levels. The biomarker utility of KLKs has been elucidated not only in endocrine-related human malignancies, including those of the prostate and breast, but also in GI malignancies. The main purpose of this review is to summarize the existing information regarding the prognostic significance of KLKs in major types of GI malignancies and highlight the regulatory role of miRNAs on the expression levels of KLKs in these types of cancer.
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Affiliation(s)
- Panagiotis G. Adamopoulos
- Department of Biochemistry and Molecular Biology , National and Kapodistrian University of Athens, Panepistimiopolis , Athens GR-15701 , Greece
| | - Panagiotis Tsiakanikas
- Department of Biochemistry and Molecular Biology , National and Kapodistrian University of Athens, Panepistimiopolis , Athens GR-15701 , Greece
| | - Andreas Scorilas
- Department of Biochemistry and Molecular Biology , National and Kapodistrian University of Athens, Panepistimiopolis , Athens GR-15701 , Greece
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23
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Vafaee F, Diakos C, Kirschner MB, Reid G, Michael MZ, Horvath LG, Alinejad-Rokny H, Cheng ZJ, Kuncic Z, Clarke S. A data-driven, knowledge-based approach to biomarker discovery: application to circulating microRNA markers of colorectal cancer prognosis. NPJ Syst Biol Appl 2018; 4:20. [PMID: 29872543 PMCID: PMC5981448 DOI: 10.1038/s41540-018-0056-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/11/2018] [Accepted: 05/04/2018] [Indexed: 02/08/2023] Open
Abstract
Recent advances in high-throughput technologies have provided an unprecedented opportunity to identify molecular markers of disease processes. This plethora of complex-omics data has simultaneously complicated the problem of extracting meaningful molecular signatures and opened up new opportunities for more sophisticated integrative and holistic approaches. In this era, effective integration of data-driven and knowledge-based approaches for biomarker identification has been recognised as key to improving the identification of high-performance biomarkers, and necessary for translational applications. Here, we have evaluated the role of circulating microRNA as a means of predicting the prognosis of patients with colorectal cancer, which is the second leading cause of cancer-related death worldwide. We have developed a multi-objective optimisation method that effectively integrates a data-driven approach with the knowledge obtained from the microRNA-mediated regulatory network to identify robust plasma microRNA signatures which are reliable in terms of predictive power as well as functional relevance. The proposed multi-objective framework has the capacity to adjust for conflicting biomarker objectives and to incorporate heterogeneous information facilitating systems approaches to biomarker discovery. We have found a prognostic signature of colorectal cancer comprising 11 circulating microRNAs. The identified signature predicts the patients' survival outcome and targets pathways underlying colorectal cancer progression. The altered expression of the identified microRNAs was confirmed in an independent public data set of plasma samples of patients in early stage vs advanced colorectal cancer. Furthermore, the generality of the proposed method was demonstrated across three publicly available miRNA data sets associated with biomarker studies in other diseases.
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Affiliation(s)
- Fatemeh Vafaee
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2033 Australia
| | - Connie Diakos
- Kolling Institute of Medical Research, University of Sydney, Royal North Shore Hospital, Reserve Road, St Leonards, NSW 2065 Australia
| | | | - Glen Reid
- Asbestos Diseases Research Institute, Hospital Road, Concord, NSW 2139 Australia
- Sydney Medical School, University of Sydney, Sydney, NSW 2050 Australia
| | - Michael Z. Michael
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Flinders University, Adelaide, SA 5042 Australia
| | - Lisa G. Horvath
- Sydney Medical School, University of Sydney, Sydney, NSW 2050 Australia
- Chris O’Brien Lifehouse, Missenden Road, Camperdown, NSW 2050 Australia
- Royal Prince Alfred Hospital, Camperdown, NSW 2050 Australia
| | | | - Zhangkai Jason Cheng
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006 Australia
- School of Physics, University of Sydney, Sydney, NSW 2006 Australia
| | - Zdenka Kuncic
- Charles Perkins Centre, University of Sydney, Sydney, NSW 2006 Australia
- School of Physics, University of Sydney, Sydney, NSW 2006 Australia
| | - Stephen Clarke
- Kolling Institute of Medical Research, University of Sydney, Royal North Shore Hospital, Reserve Road, St Leonards, NSW 2065 Australia
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24
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Li Q, Wang M, Wang N, Wang J, Qi L, Mao P. Downregulation of microRNA-216b contributes to glioma cell growth and migration by promoting AEG-1-mediated signaling. Biomed Pharmacother 2018; 104:420-426. [PMID: 29787989 DOI: 10.1016/j.biopha.2018.05.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/09/2018] [Accepted: 05/09/2018] [Indexed: 12/28/2022] Open
Abstract
Accumulating evidence indicates microRNA-216b (miR-216b) plays an important role in the development and progression of various cancers. However, little is known about the function of miR-216b in gliomas. In this study, we aimed to investigate the expression level and functional significance of miR-216b in gliomas. We found that miR-216b was significantly downregulated in glioma specimens and cell lines. Overexpression of miR-216b suppressed the growth and migration of glioma cells, while miR-216b inhibition showed the opposite effects. Astrocyte elevated gene-1 (AEG-1) was predicted as a potential target gene of miR-216b by bioinformatics analysis. A dual-luciferase reporter assay showed that miR-216b could directly target the 3'-untranslated region of AEG-1. RT-qPCR and western blot analysis showed that miR-216 negatively regulated AEG-1 expression in glioma cells. Correlation analysis revealed an inverse correlation between miR-216b and AEG-1 in clinical glioma specimens. miR-216b also regulated the activation of nuclear factor-κB and Wnt signaling in glioma cells. Moreover, restoration of AEG-1 expression partially reversed the inhibitory effect of miR-216b overexpression on glioma cell growth and migration. Overall, these results revealed a tumor suppressive role of miR-216b in glioma tumorigenesis, and identified AEG-1 as a target gene of miR-216b action. Our study suggests that miR-216b can be potentially targeted for the development of novel therapies for gliomas.
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Affiliation(s)
- Qi Li
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Maode Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
| | - Ning Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Jia Wang
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Lei Qi
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
| | - Ping Mao
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China
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25
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MicroRNAs as potential therapeutics to enhance chemosensitivity in advanced prostate cancer. Sci Rep 2018; 8:7820. [PMID: 29777112 PMCID: PMC5959911 DOI: 10.1038/s41598-018-26050-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/30/2018] [Indexed: 01/13/2023] Open
Abstract
Docetaxel and cabazitaxel are taxane chemotherapy treatments for metastatic castration-resistant prostate cancer (CRPC). However, therapeutic resistance remains a major issue. MicroRNAs are short non-coding RNAs that can silence multiple genes, regulating several signalling pathways simultaneously. Therefore, synthetic microRNAs may have therapeutic potential in CRPC by regulating genes involved in taxane response and minimise compensatory mechanisms that cause taxane resistance. To identify microRNAs that can improve the efficacy of taxanes in CRPC, we performed a genome-wide screen of 1280 microRNAs in the CRPC cell lines PC3 and DU145 in combination with docetaxel or cabazitaxel treatment. Mimics of miR-217 and miR-181b-5p enhanced apoptosis significantly in PC3 cells in the presence of these taxanes. These mimics downregulated at least a thousand different transcripts, which were enriched for genes with cell proliferation and focal adhesion functions. Individual knockdown of a selection of 46 genes representing these transcripts resulted in toxic or taxane sensitisation effects, indicating that these genes may be mediating the effects of the microRNA mimics. A range of these genes are expressed in CRPC metastases, suggesting that these microRNA mimics may be functional in CRPC. With further development, these microRNA mimics may have therapeutic potential to improve taxane response in CRPC patients.
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26
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Li X, Zhao X, Yang B, Li Y, Liu T, Pang L, Fan Z, Ma W, Liu Z, Li Z. Long non-coding RNA HOXD-AS1 promotes tumor progression and predicts poor prognosis in colorectal cancer. Int J Oncol 2018; 53:21-32. [PMID: 29749477 PMCID: PMC5958811 DOI: 10.3892/ijo.2018.4400] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 03/16/2018] [Indexed: 01/18/2023] Open
Abstract
Mounting evidence has indicated that long non-coding RNAs (lncRNA) serve important roles in tumor development. Previous studies have demonstrated that the lncRNA HOXD cluster antisense RNA 1 (HOXD-AS1) promotes tumor progression in numerous types of cancer; however, the role of HOXD-AS1 in colorectal cancer (CRC) remains unclear. In the present study, the expression levels of HOXD-AS1 were detected in CRC tissues and cell lines using quantitative polymerase chain reaction. In addition, the biological effects of HOXD-AS1 on CRC were evaluated in vitro by cell counting kit-8, colony formation and Transwell assays, and in vivo by tumorigenesis and metastasis assays. The results demonstrated that HOXD-AS1 was upregulated in CRC tissues and cell lines, and that overexpression of HOXD-AS1 was associated with poor prognosis in patients with CRC. Furthermore, knockdown of HOXD-AS1 inhibited cell proliferation, cell invasion, epithelial-mesenchymal transition and stem cell formation in vitro, as well as tumor growth and metastasis in vivo. Mechanistically, HOXD-AS1 functioned as a competing endogenous RNA for miR-217. In conclusion, the present study demonstrated that HOXD-AS1 may promote CRC progression and metastasis by competing for miR-217. In addition, HOXD-AS1 may be considered an indicator of prognosis in patients with CRC.
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Affiliation(s)
- Xiang Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Xinhan Zhao
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Binhui Yang
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Yuqing Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Tao Liu
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Linyuan Pang
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zhigang Fan
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Wu Ma
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zhongqiu Liu
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
| | - Zeng Li
- Department of Second Medical Oncology, The Affiliated 3201 Hospital of Xi'an Jiaotong University, Hanzhong, Shaanxi 723000, P.R. China
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Gao S, Zhao ZY, Wu R, Zhang Y, Zhang ZY. Prognostic value of microRNAs in colorectal cancer: a meta-analysis. Cancer Manag Res 2018; 10:907-929. [PMID: 29750053 PMCID: PMC5935085 DOI: 10.2147/cmar.s157493] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Numerous studies have shown that miRNA levels are closely related to the survival time of patients with colon, rectal, or colorectal cancer (CRC). However, the outcomes of different investigations have been inconsistent. Accordingly, a meta-analysis was conducted to study associations among the three types of cancers. Materials and methods Studies published in English that estimated the expression levels of miRNAs with survival curves in CRC were identified until May 20, 2017 by online searches in PubMed, Embase, Web of Science, and the Cochrane Library by two independent authors. Pooled HRs with 95% CIs were used to estimate the correlation between miRNA expression and overall survival. Results A total of 63 relevant articles regarding 13 different miRNAs, with 10,254 patients were ultimately included. CRC patients with high expression of blood miR141 (HR 2.52, 95% CI 1.68-3.77), tissue miR21 (HR 1.31, 95% CI 1.12-1.53), miR181a (HR 1.52, 95% CI 1.26-1.83), or miR224 (HR 2.12, 95% CI 1.04-4.34), or low expression of tissue miR126 (HR 1.55, 95% CI 1.24-1.93) had significantly poor overall survival (P<0.05). Conclusion In general, blood miR141 and tissue miR21, miR181a, miR224, and miR126 had significant prognostic value. Among these, blood miR141 and tissue miR224 were strong biomarkers of prognosis for CRC.
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Affiliation(s)
- Song Gao
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Zhi-Ying Zhao
- School of Computer Science and Engineering, Northeastern University, Shenyang
| | - Rong Wu
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
| | - Yue Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhen-Yong Zhang
- Second Department of Clinical Oncology, Shengjing Hospital of China Medical University
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28
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Wu W, Xie F, Zhang Y, Wang X, Xia L, Wu X, Gao Z. A novel regulatory function for miR-217 targetedly suppressing fibronectin expression in keloid fibrogenesis. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:1866-1877. [PMID: 31938293 PMCID: PMC6958191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/18/2016] [Indexed: 06/10/2023]
Abstract
Fibronectin (FN) plays a critical role in the development and progression of keloid scarring (KS). In the present study, we hypothesized that a post-translational mechanism of microRNAs regulated the expression of FN in keloid scarring fibroblasts (KSFBs). Here, we collected 20 KS tissues and paired corresponding adjacent normal tissues from clinical patients and measured the expression of miRNA-217. First, by using PicTar, TargetScan and miRBase database, we found that miRNA-217 might be a regulator of FN in human species. Based on these hypotheses, the expression of miRNA-217 and FN in KS tissues was investigated. The results demonstrated that the expression of miRNA-217 was greatly suppressed, and FN was increased in KS tissues. Intriguingly, the expression levels of endogenous miRNA-217 negatively correlated with the FN mRNA levels (Pearson's correlation coefficient = -0.683, P < 0.001). In vitro, miRNA-217 could regulate FN through the predicted binding sites in its 3'-UTR. miRNA-217 played an impact on cell proliferation and apoptosis, thereby regulating KSFBs growth. Moreover, miRNA-217 gain-of function decreased FN, Col-1 and Col-3 protein expression, and miRNA-217 loss-of function increased FN, Col-1 and Col-3 protein expression in KSFBs. In conclusion, overexpressed miRNA-217 could inhibit KSFBs growth, and the underlying mechanism was mediated, at least partially, through the suppression of FN expression. But above all, miRNA-217 might play a potential therapeutic avenue for the treatment of keloid fibrogenesis.
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Affiliation(s)
- Wei Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Feng Xie
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Yi Zhang
- Biomedcial Research Center, Shanghai Zhong Shan Hospital, Fudan UniversityShanghai, China
| | - Xiuxia Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Lingling Xia
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Xiaoli Wu
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
| | - Zhen Gao
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai, China
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29
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Wang LP, Wang JP, Wang XP. HOTAIR contributes to the growth of liver cancer via targeting miR-217. Oncol Lett 2018; 15:7963-7972. [PMID: 29849802 DOI: 10.3892/ol.2018.8341] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 02/23/2018] [Indexed: 01/17/2023] Open
Abstract
Non-coding RNAs are important in the progression of liver cancer. The present study aimed to investigate the effects of long non-coding RNA HOX transcript antisense RNA (HOTAIR) on the proliferation of liver cancer and the association between HOTAIR and microRNA (miR)-217. It was demonstrated that the expression of HOTAIR was upregulated in liver cancer tissues and 3 liver cancer cell lines (MHCC97H, HepG2 and Hep3B). Inhibition of HOTAIR with HOTAIR small interfering (si) RNA lentiviral vectors significantly suppressed the cell proliferation of HepG2 cells, and downregulated the protein expression levels of two proliferation markers, Ki67 and proliferating cell nuclear antigen (PCNA). Furthermore, inhibition of HOTAIR induced G0/G1 cycle arrest by increasing the expression of p27 and decreasing the expression of cyclin D1. It was then predicted and verified that miR-217 was the target of HOTAIR. Expression of miR-217 was downregulated in liver cancer tissues and the 3 liver cancer cell lines. Further results revealed that inhibition of HOTAIR markedly upregulated the expression of miR-217 in HepG2 cells, and miR-217 inhibitor-induced reduction of miR-217 was significantly suppressed by HOTAIR inhibition. Furthermore, the increased cell proliferation and growth, the upregulated expression of Ki67 and PCNA, and the reduced G0/G1 cycle arrest induced by miR-217 inhibitor were partly rescued by inhibition of HOTAIR. Finally, the in vivo experiment indicated that HOTAIR inhibition suppressed tumorigenesis, including the smaller tumor volume and the reduced levels of Ki67. Overall, HOTAIR contributes to the proliferation and growth of liver cancer via downregulation of miR-217.
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Affiliation(s)
- Li-Ping Wang
- Department of Medicine, Xi'an Honghui Hospital, Xi'an, Shaanxi 710068, P.R. China
| | - Jun-Ping Wang
- Department of Medicine, The Friendship Hospital of Shaanxi, Xi'an, Shaanxi 710000, P.R. China
| | - Xin-Ping Wang
- Department of General Surgery, Xi'an No. 4 Hospital, Xi'an, Shaanxi 710004, P.R. China
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30
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Fang L, Kong D, Xu W. MicroRNA-625-3p promotes the proliferation, migration and invasion of thyroid cancer cells by up-regulating astrocyte elevated gene 1. Biomed Pharmacother 2018; 102:203-211. [PMID: 29558717 DOI: 10.1016/j.biopha.2018.03.043] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Thyroid cancer is the most common malignancy in human endocrine system. This study aimed to investigate the effects of microRNA-625-3p (miR-625-3p) on thyroid cancer cell proliferation, migration, invasion and apoptosis, as well as underlying potential mechanism. METHODS The relative expressions of miR-625-3p in tumor tissues and adjacent normal tissues of 20 patients with papillary thyroid cancer (PTC) were assessed using qRT-PCR. Cell transfection was used to up-regulate or down-regulate the expressions of miR-625-3p in thyroid cancer SW579 and TPC-1 cells. Effects of miR-625-3p overexpression or suppression on SW579 and TPC-1 cell viability, migration, invasion and apoptosis were detected respectively. The regulatory effect of miR-625-3p on astrocyte elevated gene 1 (AEG-1) expression was also analyzed. Then, the roles of AEG-1 in SW579 and TPC-1 cell proliferation, migration, invasion and apoptosis, as well as Wnt/β-catenin and c-Jun N-terminal kinase (JNK) pathways activation, were evaluated. RESULTS miR-625-3p had high expressions in tumor tissues, compared to adjacent normal tissues. Overexpression of miR-625-3p significantly promoted SW579 and TPC-1 cell proliferation, migration and invasion but had no influence on cell apoptosis. Knockdown of miR-625-3p had opposite effects, but induced cell apoptosis. AEG-1 was up-regulated by miR-625-3p overexpression and participated in the effects of miR-625-3p on SW-579 and TPC-1 cells. In addition, overexpression of AEG-1 induced the activation of Wnt/β-catenin and JNK pathways in SW579 and TPC-1 cells. CONCLUSION miR-625-3p promoted proliferation, migration and invasion of thyroid cancer cells by enhancing the expression of AEG-1 and activating downstream Wnt/β-catenin and JNK pathways.
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Affiliation(s)
- Lei Fang
- Department of Thyroid Breast Surgery, Jining NO.1 People's Hospital, Jining, 272011, Shandong, China
| | - Dedi Kong
- Department of Thyroid Breast Surgery, Jining NO.1 People's Hospital, Jining, 272011, Shandong, China
| | - Wei Xu
- Department of Thyroid Breast Surgery, Jining NO.1 People's Hospital, Jining, 272011, Shandong, China.
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31
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Li Y, Shen Z, Jiang H, Lai Z, Wang Z, Jiang K, Ye Y, Wang S. MicroRNA‑4284 promotes gastric cancer tumorigenicity by targeting ten-eleven translocation 1. Mol Med Rep 2018; 17:6569-6575. [PMID: 29512746 PMCID: PMC5928641 DOI: 10.3892/mmr.2018.8671] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/14/2018] [Indexed: 12/13/2022] Open
Abstract
Increasing evidence has shown that abnormal expression of miR-4284 participates in the progression of several types of cancer. However, the expression and the role of miR-4284 in gastric cancer remain largely unknown. Therefore, in the present study the miR-4284 expression levels in gastric cancer tissues and cell lines, was examined using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and found that miR-4284 was significantly upregulated in 40 pairs of gastric cancer tissues and five gastric cancer cell lines compared to the corresponding normal tissues and GES-1 cell line. In addition, increased miR-4284 expression was positively associated with TNM stage (P=0.035), distal metastasis (P=0.022) and poor prognosis in gastric cancer patients. Furthermore, the overexpression of miR-4284 expression was shown to promote cell proliferation, clone formation, invasion and migration, while the suppression of miR-4284 expression induced opposite effects. Additionally, luciferase reporter assay was conducted and showed that ten-eleven translocation 1 (TET1), a tumor suppressor gene that regulating cell survival and metastasis, was a direct target of miR-4284. Upregulated miR-4284 decreased the mRNA and protein levels of TET1 in SGC-7901 cells and downregulated miR-4284 increased the mRNA and protein levels of TET1 in AGS cells. In addition, miR-4284 expression was negatively correlated with the TET1 expression in gastric cancer tissues. Moreover, inhibition of TET1 suppressed the effect of miR-4284 inhibitors on cell proliferation in AGS cells. Therefore, data demonstrated that miR-4284 could promote tumor cell growth, migration and invasion by directly targeting TET1 in gastric cancer, which may provide a potential therapeutic target for gastric cancer treatment.
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Affiliation(s)
- Yansen Li
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Zhanlong Shen
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Hongpeng Jiang
- Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Zhiyong Lai
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Zhu Wang
- Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Kewei Jiang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Yingjiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
| | - Shan Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100044, P.R. China
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32
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Ma Y, Qin C, Li L, Miao R, Jing C, Cui X. MicroRNA-21 promotes cell proliferation by targeting tumor suppressor TET1 in colorectal cancer. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2018; 11:1439-1445. [PMID: 31938241 PMCID: PMC6958103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/24/2017] [Indexed: 06/10/2023]
Abstract
MicroRNAs (miRNAs) regulate gene expression by binding to mRNA, and can function as oncogenes or tumor suppressors depending on the target. TET1 acts as tumor-suppressor, which is downregulated in colorectal cancers (CRC) and inhibits cell growth. However, it has not been studied as to whether miRNAs, suppressing target expression by binding to the 3'UTR, regulate TET1 expression in colorectal cancers. Here, our study found that miR-21 has matching sites on TET1. In the tumor tissue samples from 50 patients with CRC, the expression of miR-21 was upregulated compared with that in adjacent tissue samples while the expression of TET1 showed a significant decrease. In addition, miR-21 expression was negatively correlated with the expression of TET1. Moreover, low expression of miR-21 by the transfection of colorectal cancer cell lines with miR-21 inhibitors, the effect on TET1 expression was opposite to the change of miR-21 expression. Furthermore, our results indicated that miR-21 promoted proliferation of colorectal cancer cells by targeting TET1. These findings may provide a theoretical basis for clarifying the physiological and pathological role of miR-21 in colorectal cancer.
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Affiliation(s)
- Yan Ma
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
| | - Chengkun Qin
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
| | - Leping Li
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
| | - Ruizheng Miao
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
| | - Changqing Jing
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
| | - Xianping Cui
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University Jinan, Shandong Province, China
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Shen ZL, Wang B, Jiang KW, Ye CX, Cheng C, Yan YC, Zhang JZ, Yang Y, Gao ZD, Ye YJ, Wang S. Downregulation of miR-199b is associated with distant metastasis in colorectal cancer via activation of SIRT1 and inhibition of CREB/KISS1 signaling. Oncotarget 2018; 7:35092-105. [PMID: 27145368 PMCID: PMC5085212 DOI: 10.18632/oncotarget.9042] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 04/11/2016] [Indexed: 12/22/2022] Open
Abstract
The progression of distant metastasis cascade is a multistep and complicated process, frequently leading to a poor prognosis in cancer patients. Recently, growing evidence has indicated that deregulation of microRNAs (miRNAs) contributes to tumorigenesis and tumor progression in colorectal cancer (CRC). In the present study, by comparing the miRNA expression profiles of CRC tissues and corresponding hepatic metastasis tissues, we established the downregulation of miR-199b in CRC metastasis tissues. The decrease in miR-199b expression was significantly correlated to late TNM stage and distant metastasis. Moreover, Kaplan–Meier curves showed that CRC patients with high expression level of miR-199b had a longer median survival. Functional assays results indicated that the restoration of miR-199b considerably reduced cell invasion and migration in vitro and in vivo, and increased the sensitivity to 5-FU and oxaliplatin. Further dual-luciferase reporter gene assays revealed that SIRT1 was the direct target of miR-199b in CRC. The expression of miR-199b was inversely correlated with SIRT1 in CRC specimens. SIRT1 knockdown produced effects on biological behavior that were similar to those of miR-199b overexpression. Furthermore, through Human Tumor Metastasis PCR Array we discovered KISS1 was one of the downstream targets of SIRT1. Silencing of SIRT1 upregulated KISS1 expression by enhancing the acetylation of the transcription factor CREB. The latter was further activated via binding to the promoter of KISS1 to induce transcription. Thus, we concluded that miR-199b regulates SIRT1/CREB/KISS1 signaling pathway and might serve as a prognosis marker or a novel therapeutic target for patients with CRC.
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Affiliation(s)
- Zhan-Long Shen
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Bo Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ke-Wei Jiang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Chun-Xiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Cheng Cheng
- Department of General Surgery, Tangshan Gongren Hospital, Hebei Medical University, Tangshan, Hebei, 063000, PR China
| | - Yi-Chao Yan
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ji-Zhun Zhang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Yang Yang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Zhi-Dong Gao
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ying-Jiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Shan Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
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Shen ZL, Wang B, Jiang KW, Ye CX, Cheng C, Yan YC, Zhang JZ, Yang Y, Gao ZD, Ye YJ, Wang S. Downregulation of miR-199b is associated with distant metastasis in colorectal cancer via activation of SIRT1 and inhibition of CREB/KISS1 signaling. Oncotarget 2018; 7:49156-49168. [PMID: 27203385 PMCID: PMC5226498 DOI: 10.18632/oncotarget.9402] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 04/22/2016] [Indexed: 12/22/2022] Open
Abstract
Surface CD24 has previously been described, together with CD44 and ESA, for the characterization of putative cancer stem cells in pancreatic ductal adenocarcinoma (PDAC), the most fatal of all solid tumors. CD24 has a variety of biological functions including the regulation of invasiveness and cell proliferation, depending on the tumor entity and subcellular localization. Genetically engineered mouse models (GEMM) expressing oncogenic KrasG12D recapitulate the human disease and develop PDAC. In this study we investigate the function of CD24 using GEMM of endogenous PDAC and a model of cerulein-induced acute pancreatitis. We found that (i) CD24 expression was upregulated in murine and human PDAC and during acute pancreatitis (ii) CD24 was expressed exclusively in differentiated PDAC, whereas CD24 absence was associated with undifferentiated tumors and (iii) membranous CD24 expression determines tumor subpopulations with an epithelial phenotype in grafted models. In addition, we show that CD24 protein is stabilized in response to WNT activation and that overexpression of CD24 in pancreatic cancer cells upregulated β-catenin expression augmenting an epithelial, non-metastatic signature. Our results support a positive feedback model according to which (i) WNT activation and subsequent β-catenin dephosphorylation stabilize CD24 protein expression, and (ii) sustained CD24 expression upregulates β-catenin expression. Eventually, membranous CD24 augments the epithelial phenotype of pancreatic tumors. Thus we link the WNT/β-catenin pathway with the regulation of CD24 in the context of PDAC differentiation.
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Affiliation(s)
- Zhan-Long Shen
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Bo Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ke-Wei Jiang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Chun-Xiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Cheng Cheng
- Department of General Surgery, Tangshan Gongren Hospital, Hebei Medical University, Tangshan, Hebei, 063000, PR China
| | - Yi-Chao Yan
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ji-Zhun Zhang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Yang Yang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Zhi-Dong Gao
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Ying-Jiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
| | - Shan Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing, 100044, PR China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing, 100044, PR China
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35
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Feng S, Yao J, Zhang Z, Zhang Y, Zhang Z, Liu J, Tan W, Sun C, Chen L, Yu X. miR‑96 inhibits EMT by targeting AEG‑1 in glioblastoma cancer cells. Mol Med Rep 2017; 17:2964-2972. [PMID: 29257267 PMCID: PMC5783515 DOI: 10.3892/mmr.2017.8227] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 07/20/2017] [Indexed: 12/23/2022] Open
Abstract
The induction of epithelial to mesenchymal transition (EMT) is important for carcinogenesis and cancer progression. Previous studies have estimated that microRNA (miRNA/miR) expression is associated with EMT via the regulation of the expression of target genes. miR-96 has been reported to exhibit a correlation with the EMT process. However, the functional role of miR-96 and its mechanism in glioblastoma multiforme (GBM) remains to be completely elucidated. The objective of the present study was to investigate the functional role and mechanism of miR-96 in the migration and invasion, in addition to proliferation, apoptosis and cell cycle distribution, of GBM. In the present study, the results suggested that the introduction of miR-96 significantly inhibited the migration and invasion, in addition to proliferation and cell cycle progression, of GBM cells and promoted their apoptosis in vitro, leading to the hypothesis that miR-96 may be a potential tumor suppressor. It was subsequently confirmed that astrocyte elevated gene-1 (AEG-1) was a direct target gene of miR-96, using a luciferase assay and reverse transcription-quantitative polymerase chain reaction analysis, in addition to western blotting. miR-96 was observed to downregulate the expression of AEG-1 at the mRNA and protein levels. Notably, AEG-1 may suppress EMT by increasing the expression levels of E-cadherin, an epithelial marker, and decreasing the expression levels of vimentin, a mesenchymal marker. Therefore, it was concluded that miR-96 may impede the EMT process by downregulating AEG-1 in GBM. Additionally, it was observed that inhibition of AEG-1 led to a similar effect compared with overexpression of miR-96 in GBM. In conclusion, the results of the present study demonstrated that miR-96 may act as a tumor suppressor by regulating EMT via targeting of AEG-1, suggesting that miR-96 may be a potential biomarker and anticancer therapeutic target for GBM in the future.
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Affiliation(s)
- Shiyu Feng
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Jie Yao
- Department of Oncology, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Zhibin Zhang
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Yanyang Zhang
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Zhiyuan Zhang
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Jialin Liu
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Wenlong Tan
- Department of Oncology, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Caihong Sun
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Ling Chen
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
| | - Xinguang Yu
- Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100036, P.R. China
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36
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Flum M, Kleemann M, Schneider H, Weis B, Fischer S, Handrick R, Otte K. miR-217-5p induces apoptosis by directly targeting PRKCI, BAG3, ITGAV and MAPK1 in colorectal cancer cells. J Cell Commun Signal 2017; 12:451-466. [PMID: 28905214 DOI: 10.1007/s12079-017-0410-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 08/30/2017] [Indexed: 12/17/2022] Open
Abstract
Apoptosis is a genetically directed process of programmed cell death. A variety of microRNAs (miRNAs), endogenous single-stranded non-coding RNAs of about 22 nucleotides in length have been shown to be involved in the regulation of the intrinsic or extrinsic apoptotic pathways. There is increasing evidence that the aberrant expression of miRNAs plays a causal role in the development of diseases such as cancer. This makes miRNAs promising candidate molecules as therapeutic targets or agents. MicroRNA (miR)-217-5p has been implicated in carcinogenesis of various cancer entities, including colorectal cancer. Here, we analyzed the pro-apoptotic potential of miR-217-5p in a variety of colorecatal cancer cell lines showing that miR-217-5p mimic transfection led to the induction of apoptosis causing the breakdown of mitochondrial membrane potential, externalization of phosphatidylserine, activation of caspases and fragmentation of DNA. Furthermore, elevated miR-217-5p levels downregulated mRNA and protein expression of atypical protein kinase c iota type I (PRKCI), BAG family molecular chaperone regulator 3 (BAG3), integrin subunit alpha v (ITGAV) and mitogen-activated protein kinase 1 (MAPK1). A direct miR-217-5p mediated regulation to those targets was shown by repressed luciferase activity of reporter constructs containing the miR-217-5p binding sites in the 3' untranslated region. Taken together, our observations have uncovered the apoptosis-inducing potential of miR-217-5p through its regulation of multiple target genes involved in the ERK-MAPK signaling pathway by regulation of PRKCI, BAG3, ITGAV and MAPK1.
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Affiliation(s)
- Marion Flum
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
- Faculty of Medicine, University of Ulm, Albert-Einstein-Allee 11, 89079, Ulm, Germany
| | - Michael Kleemann
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany.
| | - Helga Schneider
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
| | - Benjamin Weis
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
| | - Simon Fischer
- Boehringer Ingelheim Pharma GmbH & Co KG, Cell Culture Development CMB, Birkendorfer Straße 65, 88397, Biberach, Germany
| | - René Handrick
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
| | - Kerstin Otte
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400, Biberach, Germany
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37
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Gupta A, Quijano E, Liu Y, Bahal R, Scanlon SE, Song E, Hsieh WC, Braddock DE, Ly DH, Saltzman WM, Glazer PM. Anti-tumor Activity of miniPEG-γ-Modified PNAs to Inhibit MicroRNA-210 for Cancer Therapy. MOLECULAR THERAPY-NUCLEIC ACIDS 2017; 9:111-119. [PMID: 29246289 PMCID: PMC5633812 DOI: 10.1016/j.omtn.2017.09.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 09/05/2017] [Accepted: 09/06/2017] [Indexed: 11/30/2022]
Abstract
MicroRNAs (miRs) are frequently overexpressed in human cancers. In particular, miR-210 is induced in hypoxic cells and acts to orchestrate the adaptation of tumor cells to hypoxia. Silencing oncogenic miRs such as miR-210 may therefore offer a promising approach to anticancer therapy. We have developed a miR-210 inhibition strategy based on a new class of conformationally preorganized antisense γ peptide nucleic acids (γPNAs) that possess vastly superior RNA-binding affinity, improved solubility, and favorable biocompatibility. For cellular delivery, we encapsulated the γPNAs in poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs). Our results show that γPNAs targeting miR-210 cause significant delay in growth of a human tumor xenograft in mice compared to conventional PNAs. Further, histopathological analyses show considerable necrosis, fibrosis, and reduced cell proliferation in γPNA-treated tumors compared to controls. Overall, our work provides a chemical framework for a novel anti-miR therapeutic approach using γPNAs that should facilitate rational design of agents to potently inhibit oncogenic microRNAs.
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Affiliation(s)
- Anisha Gupta
- Department of Therapeutic Radiology, Yale University, New Haven, CT 06510, USA
| | - Elias Quijano
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Yanfeng Liu
- Department of Therapeutic Radiology, Yale University, New Haven, CT 06510, USA
| | - Raman Bahal
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Susan E Scanlon
- Department of Therapeutic Radiology, Yale University, New Haven, CT 06510, USA
| | - Eric Song
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Wei-Che Hsieh
- Department of Chemistry and Center for Nucleic Acids Science and Technology (CNAST), Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | | | - Danith H Ly
- Department of Chemistry and Center for Nucleic Acids Science and Technology (CNAST), Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, USA
| | - Peter M Glazer
- Department of Therapeutic Radiology, Yale University, New Haven, CT 06510, USA; Department of Genetics, Yale University, New Haven, CT 06510, USA.
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38
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Song H, Rao Y, Zhang G, Kong X. MicroRNA-384 Inhibits the Growth and Invasion of Renal Cell Carcinoma Cells by Targeting Astrocyte Elevated Gene 1. Oncol Res 2017; 26:457-466. [PMID: 28877780 PMCID: PMC7844631 DOI: 10.3727/096504017x15035025554553] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
MicroRNAs (miRNAs) are emerging as pivotal regulators in the development and progression of various cancers, including renal cell carcinoma (RCC). MicroRNA-384 (miR-384) has been found to be an important cancer-related miRNA in several types of cancers. However, the role of miR-384 in RCC remains unclear. In this study, we aimed to investigate the potential function of miR-384 in regulating tumorigenesis in RCC. Here we found that miR-384 was significantly downregulated in RCC tissues and cell lines. Overexpression of miR-384 significantly inhibited the growth and invasion of RCC cells, whereas inhibition of miR-384 had the opposite effects. Bioinformatic analysis and luciferase reporter assay showed that miR-384 directly targeted the 3′-untranslated region of astrocyte elevated gene 1 (AEG-1). Further data showed that miR-384 could negatively regulate the expression of AEG-1 in RCC cells. Importantly, miR-384 expression was inversely correlated with AEG-1 expression in clinical RCC specimens. Moreover, miR-384 regulates the activation of Wnt signaling. Overexpression of AEG-1 significantly reversed the antitumor effects of miR-384. Overall, these findings suggest that miR-384 suppresses the growth and invasion of RCC cells via downregulation of AEG-1, providing a potential therapeutic target for the treatment of RCC.
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Affiliation(s)
- Haitao Song
- Department of Urinary Surgery, ChinaJapan Union Hospital, Jilin UniversityChangchunP.R. China
| | - Yanwei Rao
- Department of Critical Care Medicine, Jilin Province Peoples HospitalChangchunP.R. China
| | - Gang Zhang
- Department of Urinary Surgery, ChinaJapan Union Hospital, Jilin UniversityChangchunP.R. China
| | - Xiangbo Kong
- Department of Urinary Surgery, ChinaJapan Union Hospital, Jilin UniversityChangchunP.R. China
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39
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Jiang W, Wang S, Sun Y, Jiang Y, Yu T, Wang J. Overexpression of microRNA-448 inhibits osteosarcoma cell proliferation and invasion through targeting of astrocyte elevated gene-1. Mol Med Rep 2017; 16:5713-5721. [DOI: 10.3892/mmr.2017.7249] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 06/13/2017] [Indexed: 11/06/2022] Open
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40
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Zhang J, Wang C, Xu H. miR-217 suppresses proliferation and promotes apoptosis in cardiac myxoma by targeting Interleukin-6. Biochem Biophys Res Commun 2017. [DOI: 10.1016/j.bbrc.2017.06.106] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Liu P, Yang H, Zhang J, Peng X, Lu Z, Tong W, Chen J. The lncRNA MALAT1 acts as a competing endogenous RNA to regulate KRAS expression by sponging miR-217 in pancreatic ductal adenocarcinoma. Sci Rep 2017; 7:5186. [PMID: 28701723 PMCID: PMC5507931 DOI: 10.1038/s41598-017-05274-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 05/26/2017] [Indexed: 12/13/2022] Open
Abstract
The long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript-1 (MALAT1) has been shown to play an important role in tumourigenesis. The aim of this study was to investigate the role of MALAT1 in pancreatic ductal adenocarcinoma. MALAT1 is expressed at higher levels in pancreatic ductal adenocarcinoma (PDAC) tissues than in nontumour tissues and in metastatic PDAC than in localized tumours. Patients with PDAC and high MALAT1 expression levels have shorter overall survival than patients with PDAC and low MALAT1 expression levels. Knocking down MALAT1 reduces pancreatic tumour cell growth and proliferation both in vitro and in vivo. Moreover, MALAT1 knockdown inhibits cell cycle progression and impairs tumour cell migration and invasion. We found that miR-217 can bind MALAT1 and regulate its expression in PDAC cell lines. We also found MALAT1 knockdown attenuates the protein expression of KRAS, a known target of miR-217. After MALAT1 knockdown, KRAS protein expression levels can be rescued through inhibition of miR-217 expression. More importantly, MALAT1 knockdown does not directly affect cellular miR-217 expression but decreases the miR-217 nucleus/cytoplasm ratio, suggesting that MALAT1 inhibits the translocation of miR-217 from the nucleus to the cytoplasm.
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Affiliation(s)
- Pingping Liu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Haiyan Yang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Jing Zhang
- The State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
| | - Xiaozhong Peng
- Department of Pathology, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
| | - Zhaohui Lu
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Weimin Tong
- Department of Pathology, Institute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
| | - Jie Chen
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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42
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Xiao Y, Deng T, Su C, Shang Z. MicroRNA 217 inhibits cell proliferation and enhances chemosensitivity to doxorubicin in acute myeloid leukemia by targeting KRAS. Oncol Lett 2017; 13:4986-4994. [PMID: 28599501 DOI: 10.3892/ol.2017.6076] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 01/19/2017] [Indexed: 01/21/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous malignant disorder derived from the myeloid hematopoietic cells that accounts for ~80% of all adult acute leukemia. Numerous studies have shown that drug resistance not only exists against conventional chemotherapeutic drugs, but also limits the efficacy of new biological agents. Therefore, it is important to identify the mechanisms behind chemoresistance and seek therapeutic strategies to enhance efficacy in AML chemotherapy. MicroRNA (miR)-217 has been recognized as a tumor suppressor that is downregulated in various types of cancer, however the mechanisms behind the expression and function of miR-217 in AML have not yet been recognized. The expression of miR-217 was determined by quantitative polymerase chain reaction (qPCR). Following transfection with miR-217 mimics, an MTT assay, chemosensitivity assay, cell apoptosis assay and western blot analysis were performed in AML cell lines. Functional assays were also performed to explore the effects of endogenous Kirsten rat sarcoma viral oncogene homolog (KRAS) in AML. The results revealed that miR-217 was downregulated in patients with AML. Overexpression of miR-217 inhibited cellular proliferation and enhanced cell chemosensitivity to doxorubicin by the cell apoptosis pathway in AML cells. A dual-luciferase reporter assay demonstrated that KRAS was a direct target gene of miR-217 in vitro. qPCR and western blot analysis revealed that miR-217 negatively regulated KRAS protein expression, but had no impact on KRAS mRNA expression. Knockdown of KRAS expression markedly suppressed AML cellular proliferation, and enhanced cell chemosensitivity to doxorubicin via the cell apoptosis pathway. These findings indicate that miR-217 functions as a tumor suppressor in AML by directly targeting KRAS. Therefore, miR-217-based therapeutic strategies may provide a novel strategy for the enhancement of efficacy in the treatment of AML.
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Affiliation(s)
- Yi Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Taoran Deng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Changliang Su
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Zhen Shang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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43
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Wang H, Zhi H, Ma D, Li T. MiR-217 promoted the proliferation and invasion of glioblastoma by repressing YWHAG. Cytokine 2017; 92:93-102. [DOI: 10.1016/j.cyto.2016.12.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 12/07/2016] [Accepted: 12/21/2016] [Indexed: 12/11/2022]
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44
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Yang Y, Shen Z, Yan Y, Wang B, Zhang J, Shen C, Li T, Ye C, Gao Z, Peng G, Ye Y, Jiang K, Wang S. Long non-coding RNA GAS5 inhibits cell proliferation, induces G0/G1 arrest and apoptosis, and functions as a prognostic marker in colorectal cancer. Oncol Lett 2017; 13:3151-3158. [PMID: 28521420 DOI: 10.3892/ol.2017.5841] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/27/2016] [Indexed: 01/05/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide and its treatment remains a challenge. Effective control of cell survival and proliferation is critical in the prevention of oncogenesis and successful treatment of cancer. Long non-coding RNAs (lncRNAs) have emerged as primary regulators of carcinogenesis. Growth arrest specific 5 (GAS5), a lncRNA, is known to be aberrantly expressed in several types of cancer, however, the role of GAS5 in CRC remains unclear. In the present study, GAS5 mRNA expression was measured in CRC and adjacent normal mucosa tissue samples from 53 patients using reverse transcription-quantitative polymerase chain reaction analysis, in addition to seven CRC cell lines. GAS5 mRNA expression was observed to be markedly downregulated in human CRC tissues and cell lines. Decreased GAS5 expression was associated with an increase in tumor diameter [odds ratio (OR), 0.176 (95% CI, 0.053-0.586); P=0.003] and later tumor-node-metastasis stage [OR, 0.261 (95% CI, 0.083-0.819); P=0.019]. Patients with decreased GAS5 expression exhibited decreased overall survival rates compared with patients with increased GAS5 expression (P=0.015). The Cox proportional hazards model demonstrated that downregulated GAS5 expression was an independent prognostic factor for CRC (hazard ratio, 0.236; 95% confidence interval, 0.067-0.827; P=0.024). Functional assays demonstrated that overexpression of GAS5 inhibited cell proliferation and survival, and induced G0/G1 cell cycle arrest and apoptosis; however, knockdown of GAS5 expression enhanced cell proliferation, and reduced G0/G1 arrest and apoptosis. In conclusion, the results of the present study suggest that GAS5 is essential in the control of apoptosis and cell growth in CRC. Therefore, GAS5 may represent a novel prognostic and diagnostic marker of CRC, in addition to being a potential therapeutic target.
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Affiliation(s)
- Yang Yang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Zhanlong Shen
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Yichao Yan
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Bo Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Jizhun Zhang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Chao Shen
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Tao Li
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Chunxiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Zhidong Gao
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Guo Peng
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Yingjiang Ye
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Kewei Jiang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
| | - Shan Wang
- Department of Gastroenterological Surgery, Peking University People's Hospital, Beijing 100034, P.R. China.,Laboratory of Surgical Oncology, Peking University People's Hospital, Beijing 100034, P.R. China
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45
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Zheng J, Liu X, Xue Y, Gong W, Ma J, Xi Z, Que Z, Liu Y. TTBK2 circular RNA promotes glioma malignancy by regulating miR-217/HNF1β/Derlin-1 pathway. J Hematol Oncol 2017; 10:52. [PMID: 28219405 PMCID: PMC5319142 DOI: 10.1186/s13045-017-0422-2] [Citation(s) in RCA: 179] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/14/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Circular RNAs are a subgroup of non-coding RNAs and generated by a mammalian genome. Herein, the expression and function of circular RNA circ-TTBK2 were investigated in human glioma cells. METHODS Fluorescence in situ hybridization and quantitative real-time PCR were conducted to profile the cell distribution and expression of circ-TTBK2 and microRNA-217 (miR-217) in glioma tissues and cells. Immunohistochemical and western blot were used to determine the expression of HNF1β and Derlin-1 in glioma tissues and cells. Stable knockdown of circ-TTBK2 or overexpression of miR-217 glioma cell lines (U87 and U251) were established to explore the function of circ-TTBK2 and miR-217 in glioma cells. Further, luciferase reports and RNA immunoprecipitation were used to investigate the correlation between circ-TTBK2 and miR-217. Cell Counting Kit-8, transwell assays, and flow cytometry were used to investigate circ-TTBK2 and miR-217 function including cell proliferation, migration and invasion, and apoptosis, respectively. ChIP assays were used to ascertain the correlations between HNF1β and Derlin-1. RESULTS We found that circ-TTBK2 was upregulated in glioma tissues and cell lines, while linear TTBK2 was not dysregulated in glioma tissues and cells. Enhanced expression of circ-TTBK2 promoted cell proliferation, migration, and invasion, while inhibited apoptosis. MiR-217 was downregulated in glioma tissues and cell lines. We also found that circ-TTBK2, but not linear TTBK2, acted as miR-217 sponge in a sequence-specific manner. In addition, upregulated circ-TTBK2 decreased miR-217 expression and there was a reciprocal negative feedback between them in an Argonaute2-dependent manner. Moreover, reintroduction of miR-217 significantly reversed circ-TTBK2-mediated promotion of glioma progression. HNF1β was a direct target of miR-217, and played oncogenic role in glioma cells. Remarkably, circ-TTBK2 knockdown combined with miR-217 overexpression led to tumor regression in vivo. CONCLUSIONS These results demonstrated a novel role circ-TTBK2 in the glioma progression.
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Affiliation(s)
- Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Wei Gong
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Zhuo Xi
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Zhongyou Que
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China. .,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China.
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Zhang M, Li M, Li N, Zhang Z, Liu N, Han X, Liu Q, Liao C. miR-217 suppresses proliferation, migration, and invasion promoting apoptosis via targeting MTDH in hepatocellular carcinoma. Oncol Rep 2017; 37:1772-1778. [PMID: 28184926 DOI: 10.3892/or.2017.5401] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 12/27/2016] [Indexed: 01/11/2023] Open
Abstract
Hepatocellular carcinoma (HCC) has frequent incidence and the third highest mortality rate among cancers in the world. This study aimed to clarify the roles of miR-217 and metadherin (MTDH) in HCC. First, we identified that miR-217 expression was downregulated and MTDH expression was upregulated in the HCC tissues. Functional studies revealed that miR-217 negatively regulated MTDH expression via binding to the 3'-untranslated region of MTDH mRNA in the HCC cells. In our further studies, the miR-217 overexpression resulted in downregulation of MTDH expression in HCC cells. The miR-217 overexpression in HCC cells suppressed proliferation, migration, and invasion inducing apoptosis. Taken together, our study provides the initial evidence that the increase of MTDH expression is associated with the decrease of miR-217 expression in HCC. This study also suggests that miR-217 inhibits malignant progression of HCC in vitro and may be used for miRNA-based therapy, possibly via directly targeting MTDH.
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Affiliation(s)
- Mao Zhang
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Min Li
- Department of General Surgery, Shilong People's Hospital, Southern Medical University, Dongguan, Guangdong 523326, P.R. China
| | - Na Li
- Department of Obstetrics and Gynecology, Baotou City Central Hospital, Baotou, Inner Mongolia 014040, P.R. China
| | - Zilang Zhang
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Ning Liu
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Xiaoyu Han
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Qincheng Liu
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Caixian Liao
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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miR-216b Targets FGFR1 and Confers Sensitivity to Radiotherapy in Pancreatic Ductal Adenocarcinoma Patients Without EGFR or KRAS Mutation. Pancreas 2016; 45:1294-302. [PMID: 27101576 DOI: 10.1097/mpa.0000000000000640] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The success of gemcitabine plus radiotherapy is dependent on the mutation status of pancreatic ductal adenocarcinoma (PDAC) tumors in the EGFR and KRAS genes; however, radiotherapy resistance may also be modulated epigenetically by microRNA (miRNA) regulation. In this study, we examined the potential effect of miRNAs on the resistance to radiotherapy in cases without EGFR or KRAS mutation. METHODS The association of EGFR and KRAS mutation status and different expression patterns of 6 selected miRNAs related to the EGFR/KRAS signaling pathway were evaluated in the tumors of 42 patients with PDAC. RESULTS Reduced miR-216b and miR-217 expression was associated with aggressive tumor characteristics and shortened disease-free survival. In addition, miR-216b expression was reduced 2.7-fold in the cases that did not benefit from therapy, although they did not demonstrate EGFR or KRAS expression (P = 0.0316). A negative correlation between FGFR1 and miR-216b expression (r = -0.355) was found in the tumors of these cases. CONCLUSIONS Further studies and validations are required; in the tumors of patients with PDAC without activating mutations and induced expression of EGFR/KRAS genes, down-regulated miR-216b expression may be associated with a poor response to radiotherapy via deregulation of another signaling pathway related to FGFR1 signaling.
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MicroRNA-124 inhibits proliferation, invasion, migration and epithelial-mesenchymal transition of cervical carcinoma cells by targeting astrocyte-elevated gene-1. Oncol Rep 2016; 36:2321-8. [DOI: 10.3892/or.2016.5025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 08/01/2016] [Indexed: 11/05/2022] Open
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Gong L, Wang C, Gao Y, Wang J. Decreased expression of microRNA-148a predicts poor prognosis in ovarian cancer and associates with tumor growth and metastasis. Biomed Pharmacother 2016; 83:58-63. [PMID: 27470550 DOI: 10.1016/j.biopha.2016.05.049] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 05/31/2016] [Accepted: 05/31/2016] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE MicroRNA-148a (MiR-148a) had been reported to take part in some cancer progresses, but its clinical significance in ovarian cancer had been rarely reported. The purpose of this study was to evaluate the prognostic value of miR-148a as well as its roles in ovarian cancer progression. METHODS Relative expression of miR-148a in the plasma specimens of ovarian cancer patients was detected by qRT-PCR. Chi-square test was used to analyze the relationship between miR-148a expression and clinical characteristics. The overall survival was analyzed by Kaplan-Meier method and Cox regression analysis was used to evaluate the prognostic value of miR-148a. In addition, the ovarian cancer cell line SKOV-3 was separately transfected with pcDNA3-microRNA-148a over-expression vector and pcDNA3 empty vector to detect the functional roles of miR-148a in ovarian cancer progression. RESULTS Decreased level of plasma miR-148a was observed in ovarian cancer patients compared with healthy controls. The expression level was associated with histopathologic grade, TNM stage and lymph node metastasis (P<0.05 for all). Besides, patients with high level of miR-148a had a longer survival time than those with low level (40.3 months vs 31.6 months, log rank test, P=0.002). Cox regression analysis indicated that miR-148a might be a potential biomarker for ovarian cancer prognosis (HR=1.699, 95%CI=1.175-2.456, P=0.005). Moreover, cell experiments confirmed that miR-148a could inhibit proliferation, migration and invasion of ovarian cancer cells. CONCLUSION MiR-148a may be a potential prognostic factor for ovarian cancer and it can suppress tumor progression.
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Affiliation(s)
- Li Gong
- Department of Gynecology, People's Hospital of Rizhao, Rizhao 222000, China.
| | - Chongjuan Wang
- Department of Gynecology, People's Hospital of Rizhao, Rizhao 222000, China
| | - Yuan Gao
- Department of Gynecology, People's Hospital of Rizhao, Rizhao 222000, China
| | - Jie Wang
- Department of Gynecology, People's Hospital of Rizhao, Rizhao 222000, China
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Emdad L, Das SK, Hu B, Kegelman T, Kang DC, Lee SG, Sarkar D, Fisher PB. AEG-1/MTDH/LYRIC: A Promiscuous Protein Partner Critical in Cancer, Obesity, and CNS Diseases. Adv Cancer Res 2016; 131:97-132. [PMID: 27451125 DOI: 10.1016/bs.acr.2016.05.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Since its original discovery in 2002, AEG-1/MTDH/LYRIC has emerged as a primary regulator of several diseases including cancer, inflammatory diseases, and neurodegenerative diseases. AEG-1/MTDH/LYRIC has emerged as a key contributory molecule in almost every aspect of cancer progression, including uncontrolled cell growth, evasion of apoptosis, increased cell migration and invasion, angiogenesis, chemoresistance, and metastasis. Additionally, recent studies highlight a seminal role of AEG-1/MTDH/LYRIC in neurodegenerative diseases and obesity. By interacting with multiple protein partners, AEG-1/MTDH/LYRIC plays multifaceted roles in the pathogenesis of a wide variety of diseases. This review discusses the current state of understanding of AEG-1/MTDH/LYRIC regulation and function in cancer and other diseases with a focus on its association/interaction with several pivotal protein partners.
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Affiliation(s)
- L Emdad
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
| | - S K Das
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - B Hu
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - T Kegelman
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - D-C Kang
- Ilsong Institute of Life Science, Hallym University, Anyang, Republic of Korea
| | - S-G Lee
- Cancer Preventive Material Development Research Center, Institute of Korean Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - D Sarkar
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States
| | - P B Fisher
- Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Massey Cancer Center, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States; VCU Institute of Molecular Medicine, Virginia Commonwealth University, School of Medicine, Richmond, VA, United States.
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