51
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Yoshino H, Nohata N, Miyamoto K, Yonemori M, Sakaguchi T, Sugita S, Itesako T, Kofuji S, Nakagawa M, Dahiya R, Enokida H. PHGDH as a Key Enzyme for Serine Biosynthesis in HIF2α-Targeting Therapy for Renal Cell Carcinoma. Cancer Res 2017; 77:6321-6329. [PMID: 28951458 PMCID: PMC5893502 DOI: 10.1158/0008-5472.can-17-1589] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/15/2017] [Accepted: 09/15/2017] [Indexed: 12/23/2022]
Abstract
Continuous activation of hypoxia-inducible factor (HIF) is important for progression of renal cell carcinoma (RCC) and acquired resistance to antiangiogenic multikinase and mTOR inhibitors. Recently, HIF2α antagonists PT2385 and PT2399 were developed and are being evaluated in a phase I clinical trial for advanced or metastatic clear cell RCC (ccRCC). However, resistance to HIF2α antagonists would be expected to develop. In this study, we identified signals activated by HIF2α deficiency as candidate mediators of resistance to the HIF2α antagonists. We established sunitinib-resistant tumor cells in vivo and created HIF2α-deficient variants of these cells using CRISPR/Cas9 technology. Mechanistic investigations revealed that a regulator of the serine biosynthesis pathway, phosphoglycerate dehydrogenase (PHGDH), was upregulated commonly in HIF2α-deficient tumor cells along with the serine biosynthesis pathway itself. Accordingly, treatment with a PHGDH inhibitor reduced the growth of HIF2α-deficient tumor cells in vivo and in vitro by inducing apoptosis. Our findings identify the serine biosynthesis pathway as a source of candidate therapeutic targets to eradicate advanced or metastatic ccRCC resistant to HIF2α antagonists. Cancer Res; 77(22); 6321-9. ©2017 AACR.
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Affiliation(s)
- Hirofumi Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Nijiro Nohata
- Moores Cancer Center, University of California, San Diego, California
| | - Kazutaka Miyamoto
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Masaya Yonemori
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Takashi Sakaguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Satoshi Sugita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Toshihiko Itesako
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Satoshi Kofuji
- Department of Physiological Chemistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Rajvir Dahiya
- Department of Urology, VA Medical Center and UCSF, San Francisco, California.
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
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52
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Viral E6/E7 oncogene and cellular hexokinase 2 expression in HPV-positive cancer cell lines. Oncotarget 2017; 8:106342-106351. [PMID: 29290953 PMCID: PMC5739738 DOI: 10.18632/oncotarget.22463] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/27/2017] [Indexed: 11/25/2022] Open
Abstract
Oncogenic types of human papillomaviruses (HPVs) are major human carcinogens. Cancer cells typically exhibit metabolic alterations which support their malignant growth. These include an enhanced rate of aerobic glycolysis (‘Warburg effect’) which in cancer cells is often linked to an increased expression of the rate-limiting glycolytic enzyme Hexokinase 2 (HK2). Intriguingly, recent studies indicate that the HPV E6/E7 oncogenes cause the metabolic reprogramming in HPV-positive cancer cells by directly upregulating HK2 expression. Notably, however, these results were obtained upon ectopic overexpression of E6/E7. Here, we investigated whether HK2 levels are affected by the endogenous E6/E7 amounts present in HPV-positive cancer cell lines. RNA interference analyses reveal that the sustained E6/E7 expression is critical to maintain HK2 expression levels in HeLa cells. Mechanistically, this effect is linked to the E6/E7-dependent upregulation of HK2-stimulatory MYC expression and the E6/E7-induced downregulation of the HK2-inhibitory micro(mi)RNA miR-143-3p. Importantly, however, a stimulatory effect of E6/E7 on HK2 expression was observed only in HeLa among a panel of 8 different HPV-positive cervical and head and neck cancer cell lines. Thus, whereas these results support the notion that E6/E7 can increase HK2 expression, they argue against the concept that the viral oncogenes, at endogenous expression levels, commonly induce the metabolic switch of HPV-positive cancer cells towards aerobic glycolysis by directly or indirectly stimulating HK2 expression.
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53
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Zhang J, Ma D, Liu H, Wang J, Fan J, Li X. MicroRNA-143 shows tumor suppressive effects through inhibition of oncogenic K-Ras in pituitary tumor. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:10969-10978. [PMID: 31966441 PMCID: PMC6965829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 10/17/2017] [Indexed: 06/10/2023]
Abstract
MicroRNAs (miRNAs) are a class of small non-coding RNA molecules, about 21-25 nucleotides in length. Accumulating evidence demonstrated that dysregulation or dysfunction of miRNAs are involved in various diseases, including cancer. MiR-143, recently has been reported to function as an important tumor suppressor in prostate cancer, pancreatic ductal adenocarcinoma and other kinds of cancers, but rarely systematically studied in pituitary tumor. In the present study, we firstly found that miR-143 was significantly down-regulated in pituitary tumor tissues and cell lines (GH3 and MMQ). Then, subsequent studies revealed that miR-143 inhibits cell proliferation and promotes apoptosis in both GH3 and MMQ cells. In addition, K-Ras, one of the most important oncogenes involved in many kinds of cancers, was found to be suppressed by miR-143 in pituitary tumor. Furthermore, overexpression of K-Ras greatly reversed the suppressive effect of miR-143 on pituitary tumor cells. In summary, our study demonstrated that miR-143 functions as a tumor suppressor and directly targets K-Ras in human pituitary tumor.
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Affiliation(s)
- Jimin Zhang
- Department of Neurosurgery, Affiliated Hospital of Hebei University of EngineeringHandan 056002, Hebei Province, China
| | - Dongzhou Ma
- Department of Neurosurgery, Affiliated Hospital of Hebei University of EngineeringHandan 056002, Hebei Province, China
| | - Hui Liu
- Department of Neurosurgery, Jizhong Energy Fengfeng Group HospitalHandan 056200, Hebei Province, China
| | - Jingtao Wang
- Department of Neurosurgery, Affiliated Hospital of Hebei University of EngineeringHandan 056002, Hebei Province, China
| | - Jinbiao Fan
- Department of Neurosurgery, Affiliated Hospital of Hebei University of EngineeringHandan 056002, Hebei Province, China
| | - Xiushan Li
- Department of Neurosurgery, Affiliated Hospital of Hebei University of EngineeringHandan 056002, Hebei Province, China
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54
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Johannessen C, Moi L, Kiselev Y, Pedersen MI, Dalen SM, Braaten T, Busund LT. Expression and function of the miR-143/145 cluster in vitro and in vivo in human breast cancer. PLoS One 2017; 12:e0186658. [PMID: 29073169 PMCID: PMC5657998 DOI: 10.1371/journal.pone.0186658] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 10/01/2017] [Indexed: 12/21/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that function as post-transcriptional regulators of gene expression and are dysregulated in cancer. Studies of miRNAs to explore their potential as diagnostic and prognostic markers are of great scientific interest. Here, we investigate the functional properties and expression of the miR-143/145 cluster in breast cancer (BC) in vitro and in vivo. The ER positive MCF7, the HER2 positive SK-BR-3, and the triple negative cell line MDA-MB-231 were used to assess cell proliferation and cell invasion. Expression of miRNA in 108 breast cancers in the Norwegian Women and Cancer Study and 44 benign tissue controls were analyzed by microarray and validated by RT-PCR. Further, in situ hybridization (ISH) was used to study the cellular and subcellular distribution of the miRNAs. In vitro, miR-143 promoted proliferation of MCF7 and MDA-MB-231 cells, whereas miR-145 and the cotransfection of both miRNAs inhibited proliferation in all three cell lines. The cells’ invasive capacity was reduced after transfection and cotransfection of the miRNAs. In line with the tumor suppressive functions in vitro, the expression of miR-143 and miR-145 was lower in malignant compared to benign breast tissue, and lower in the more aggressive tumors with higher tumor grade, loss of ER and the basal-like phenotype. ISH revealed miR-143 to be cytoplasmatic and predominantly expressed in luminal cells in benign tissue, whilst miR-145 was nuclear and with strong staining in myoepithelial cells. Both miRNAs were present in malignant epithelial cells and stromal fibroblasts in BC. This study demonstrates that miR-143 and -145 have functional properties and expression patterns typical for tumor suppressors, but the function is influenced by cellular factors such as cell type and miRNA cotransfection. Further, the nuclear functions of miR-145 should be explored for a more complete understanding of the complexity of miRNA regulation and function in BC.
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Affiliation(s)
- Charles Johannessen
- Department of Medical Biology, UiT—The Arctic University of Norway, Tromsø, Norway
- * E-mail:
| | - Line Moi
- Department of Medical Biology, UiT—The Arctic University of Norway, Tromsø, Norway
- Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway
| | - Yury Kiselev
- Department of Life Sciences and Health, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - Mona Irene Pedersen
- Department of Clinical Medicine, UiT—The Arctic University of Norway, Tromsø, Norway
| | - Stig Manfred Dalen
- Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway
| | - Tonje Braaten
- Department of Community Medicine, UiT—The Arctic University of Norway, Tromsø, Norway
| | - Lill-Tove Busund
- Department of Medical Biology, UiT—The Arctic University of Norway, Tromsø, Norway
- Department of Clinical Pathology, University Hospital of North Norway, Tromsø, Norway
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55
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Yoshino H, Yonemori M, Miyamoto K, Tatarano S, Kofuji S, Nohata N, Nakagawa M, Enokida H. microRNA-210-3p depletion by CRISPR/Cas9 promoted tumorigenesis through revival of TWIST1 in renal cell carcinoma. Oncotarget 2017; 8:20881-20894. [PMID: 28152509 PMCID: PMC5400553 DOI: 10.18632/oncotarget.14930] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/05/2016] [Indexed: 12/11/2022] Open
Abstract
Previous studies showed that five miRNAs (miR-885-5p, miR-1274, miR-210-3p, miR-224 and miR-1290) were upregulated the most in clear cell renal cell carcinoma (ccRCC). Our focus was to understand from a clinical standpoint the functional consequences of upregulating miR-210-3p. Towards this, we utilized the CRISPR/Cas9 gene editing system to deplete miR-210-3p in RCC cell lines (786-o, A498 and Caki2) and characterized the outcomes. We observed that miR-210-3p depletion dramatically increased tumorigenesis, including altering the morphology of A498 and Caki2 cells in a manner characteristic of epithelial-mesenchymal transition (EMT). These results were corroborated by in vivo xenograft studies, which showed enhanced growth of tumors from miR-210-3p-depleted A498 cells. We identified Twist-related protein 1 (TWIST1) as a key target of miR-210-3p. Analysis of the ccRCC patient data in The Cancer Genome Atlas database showed a negative correlation between miR-210-3p and TWIST1 expression. High TWIST1 and low miR-210-3p expression associated with poorer overall and disease-free survival as compared to low TWIST1 and high miR-210-3p expression. These findings suggest that renal cell carcinoma progression is promoted by TWIST1 suppression mediated by miR-210-3p.
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Affiliation(s)
- Hirofumi Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Masaya Yonemori
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Kazutaka Miyamoto
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Syuichi Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Satoshi Kofuji
- Department of Internal Medicine, Vontz Center, University of Cincinnati, College of Medicine, Ohio 45267-0508, USA
| | - Nijiro Nohata
- Moores UCSD Cancer Center, La Jolla, CA 92093-0803, USA
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
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56
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Alamoudi AA, Alnoury A, Gad H. miRNA in tumour metabolism and why could it be the preferred pathway for energy reprograming. Brief Funct Genomics 2017; 17:157-169. [DOI: 10.1093/bfgp/elx023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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57
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Zhong JT, Zhou SH. Warburg effect, hexokinase-II, and radioresistance of laryngeal carcinoma. Oncotarget 2017; 8:14133-14146. [PMID: 27823965 PMCID: PMC5355168 DOI: 10.18632/oncotarget.13044] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 10/28/2016] [Indexed: 12/26/2022] Open
Abstract
Radiotherapy is now widely used as a part of multidisciplinary treatment approaches for advanced laryngeal carcinoma and preservation of laryngeal function. However, the mechanism of the radioresistance is still unclear. Some studies have revealed that the Warburg effect promotes the radioresistance of various malignant tumors, including laryngeal carcinoma. Among the regulators involved in the Warburg effect, hexokinase-II (HK-II) is a crucial glycolytic enzyme that catalyzes the first essential step of glucose metabolism. HK-II is reportedly highly expressed in some human solid carcinomas by many studies. But for laryngeal carcinoma, there is only one. Till now, no studies have directly targeted inhibited HK-II and enhanced the radiosensitivity of laryngeal carcinoma. Accumulating evidence has shown that dysregulated signaling pathways often result in HK-II overexpression. Here, we summarize recent advances in understanding the association among the Warburg effect, HK-II, and the radioresistance of laryngeal carcinoma. We speculate on the feasibility of enhancing radiosensitivity by targeted inhibiting HK-II signaling pathways in laryngeal carcinoma, which may provide a novel anticancer therapy.
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Affiliation(s)
- Jiang-Tao Zhong
- Department of Otolaryngology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shui-Hong Zhou
- Department of Otolaryngology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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58
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MiR-143 inhibits endometrial cancer cell proliferation and metastasis by targeting MAPK1. Oncotarget 2017; 8:84384-84395. [PMID: 29137432 PMCID: PMC5663604 DOI: 10.18632/oncotarget.21037] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/04/2017] [Indexed: 12/31/2022] Open
Abstract
Endometrial cancer (EC) is one of the most commonly diagnosed gynecologic malignancies in the world, with the morbidity rate of over 7%. The mechanism of the pathogenesis has not been specifically elucidated to date, which is imperative for EC treatment. The aim of our study was to investigate the target relationship between miR-143 and mitogen-activated protein kinase 1 (MAPK1) and explore the effect of miR-143 on the endometrial cancers (EC) cells through targeting MAPK1. We collected EC tissues and adjacent tissues, and transfected miR-143 mimics and MAPK1 siRNA into EC cells with lipofectamine. Reverse transcription-polymerase chain reaction (RT-PCR) and western blot were used to examine the expression of miR-143 and MAPK1 mRNA and the protein expression of MAPK1. Cell counting kit-8, wound healing assay, flow cytometry and transwell assay were applied to examining the alteration of the proliferation, migration, cell cycle and invasion ability of EC cells. We predicted the targeting gene of miR-143 through bioinformatics analysis. MiR-143 was found under-expressed in EC tissues and cells. Overexpression of miR-143 or knockdown of MAPK1 in human EC cell line HEC-1B inhibited the EC cell proliferation, migration and invasion and induced apoptosis. MAPK1 was verified to be a target gene of miR-143. MiR-143 overexpression could effectively inhibit mRNA and protein expression of MAPK1 in HEC-1B cells. Collectively, miR-143 might inhibit the proliferation, migration and invasion of EC cells, and promote the apoptosis of EC cells by suppressing MAPK1. These findings provided a view for new and potential therapeutic method for the clinical treatment of EC.
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59
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Anderson M, Marayati R, Moffitt R, Yeh JJ. Hexokinase 2 promotes tumor growth and metastasis by regulating lactate production in pancreatic cancer. Oncotarget 2017; 8:56081-56094. [PMID: 28915575 PMCID: PMC5593546 DOI: 10.18632/oncotarget.9760] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 05/02/2016] [Indexed: 12/12/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a KRAS-driven cancer with a high incidence of metastasis and an overall poor prognosis. Previous work in a genetically engineered mouse model of PDAC showed glucose metabolism to be important for maintaining tumor growth. Multiple glycolytic enzymes, including hexokinase 2 (HK2), were upregulated in primary PDAC patient tumors, supporting a role for glycolysis in promoting human disease. HK2 was most highly expressed in PDAC metastases, suggesting a link between HK2 and aggressive tumor biology. In support of this we found HK2 expression to be associated with shorter overall survival in PDAC patients undergoing curative surgery. Transient and stable knockdown of HK2 in primary PDAC cell lines decreased lactate production, anchorage independent growth (AIG) and invasion through a reconstituted matrix. Conversely, stable overexpression of HK2 increased lactate production, cell proliferation, AIG and invasion. Pharmacologic inhibition of lactate production reduced the HK2-driven increase in invasion while addition of extracellular lactate enhanced invasion, together providing a link between glycolytic activity and metastatic potential. Stable knockdown of HK2 decreased primary tumor growth in cell line xenografts and decreased incidence of lung metastasis after tail vein injection. Gene expression analysis of tumors with decreased HK2 expression showed alterations in VEGF-A signaling, a pathway important for angiogenesis and metastasis, consistent with a requirement of HK2 in promoting metastasis. Overall our data provides strong evidence for the role of HK2 in promoting PDAC disease progression, suggesting that direct inhibition of HK2 may be a promising approach in the clinic.
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Affiliation(s)
- Marybeth Anderson
- Curriculum in Genetics & Molecular Biology, The University of North Carolina, Chapel Hill, NC
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, NC
| | - Raoud Marayati
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, NC
| | - Richard Moffitt
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, NC
| | - Jen Jen Yeh
- Curriculum in Genetics & Molecular Biology, The University of North Carolina, Chapel Hill, NC
- Lineberger Comprehensive Cancer Center, The University of North Carolina, Chapel Hill, NC
- Departments of Surgery and Pharmacology, The University of North Carolina, Chapel Hill, NC
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60
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Chen C, Xue S, Zhang J, Chen W, Gong D, Zheng J, Ma J, Xue W, Chen Y, Zhai W, Zheng J. DNA-methylation-mediated repression of miR-766-3p promotes cell proliferation via targeting SF2 expression in renal cell carcinoma. Int J Cancer 2017; 141:1867-1878. [PMID: 28657135 DOI: 10.1002/ijc.30853] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 05/15/2017] [Accepted: 06/14/2017] [Indexed: 01/10/2023]
Abstract
Aberrant expression of microRNA (miRNA) emerges as an important role in a wide range of human malignances, and further identification as well as validation of the change of these endogenous non-protein-coding transcripts is warranted. Here, we identify a novel epigenetic regulation of miR-766-3p and investigate its biological function as well as clinical significance in renal cell carcinoma (RCC). Bisulfate analysis elucidates that the promoter of miR-766-3p is highly methylated in RCC tissues compared to non-tumorous tissues. Notably, the downregulation of miR-766-3p is obviously associated with clinical stage and worse prognosis in RCC patients. Upregulated miR-766-3p attenuates cell-cycle progression via targeting SF2 expression and additional SF2/P-AKT/P-ERK signaling pathway. Moreover, high level of SF2, as a novel oncoprotein in RCC, was significantly associated with poor survival in a large cohort of RCC specimens. Taken together, our study presents a road map for the prediction and validation of miR-766-3p/SF2 axis and thus imparts a therapeutic way for further RCC progression.
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Affiliation(s)
- Chen Chen
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Sheng Xue
- Department of Urology, Shanghai Tenth People's Hospital, Nanjing Medical University, Nanjing, China.,Department of Urology, The First Affliated Hospital of Bengbu Medical College Bengbu, Anhui, China
| | - Jin Zhang
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, 160 Pujian Road, Pudong District, Shanghai, 200127, China
| | - Wei Chen
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, 160 Pujian Road, Pudong District, Shanghai, 200127, China
| | - Dongkui Gong
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Jiayi Zheng
- Department of Pathology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Junjie Ma
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China
| | - Wei Xue
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, 160 Pujian Road, Pudong District, Shanghai, 200127, China
| | - Yonghui Chen
- Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, 160 Pujian Road, Pudong District, Shanghai, 200127, China
| | - Wei Zhai
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China.,Department of Urology, Renji Hospital, School of Medicine in Shanghai Jiao Tong University, 160 Pujian Road, Pudong District, Shanghai, 200127, China
| | - Junhua Zheng
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, 200072, China.,Department of Urology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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61
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Song J, Wu X, Liu F, Li M, Sun Y, Wang Y, Wang C, Zhu K, Jia X, Wang B, Ma X. Long non-coding RNA PVT1 promotes glycolysis and tumor progression by regulating miR-497/HK2 axis in osteosarcoma. Biochem Biophys Res Commun 2017; 490:217-224. [DOI: 10.1016/j.bbrc.2017.06.024] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 06/07/2017] [Indexed: 12/12/2022]
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62
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Gu DN, Jiang MJ, Mei Z, Dai JJ, Dai CY, Fang C, Huang Q, Tian L. microRNA-7 impairs autophagy-derived pools of glucose to suppress pancreatic cancer progression. Cancer Lett 2017; 400:69-78. [PMID: 28450156 DOI: 10.1016/j.canlet.2017.04.020] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/22/2017] [Accepted: 04/17/2017] [Indexed: 12/17/2022]
Abstract
Pancreatic cancer commonly addicts to aerobic glycolysis, and abnormally activates autophagy to adapt the stringent metabolic microenvironment. microRNA-7 (miR-7) was supposed to modulate various gastrointestinal cancer progression. We wonder whether miR-7 could destroy the reprogrammed metabolic homeostasis in pancreatic cancer via modulating the level of autophagy, and further affect tumor proliferation and survival. Herein, we first reported that pancreatic cancer could take advantage of autophagy as a survival strategy to provide essential glucose required for glycolysis metabolism. Of note, under the stressful tumor microenvironment, miR-7 could repress autophagy through up-regulation of LKB1-AMPK-mTOR signaling, and directly targeting the stages of autophagy induction and vesicle elongation to reduce the supply of intracellular glucose to glycolysis metabolism. Furthermore, miR-7 inhibited pancreatic cancer cell proliferation and metastasis in vitro and in vivo. Consistently, lentivirus-mediated miR-7 effectively reduced the growth of patient-derived xenograft by interfering glycolysis via inhibition of autophagy. Together, these data suggested miR-7 might function as an important regulator to impair autophagy-derived pools of glucose to suppress pancreatic cancer progress. Hence, miR-7 might be a potential therapeutic target in pancreatic cancer.
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Affiliation(s)
- Dian-Na Gu
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Ming-Jie Jiang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Zhu Mei
- Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Juan-Juan Dai
- Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Chen-Yun Dai
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Chi Fang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Qian Huang
- Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; The Comprehensive Cancer Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Ling Tian
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China; Shanghai Key Laboratory of Pancreatic Diseases, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China.
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63
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Zhang LF, Jiang S, Liu MF. MicroRNA regulation and analytical methods in cancer cell metabolism. Cell Mol Life Sci 2017; 74:2929-2941. [PMID: 28321489 PMCID: PMC11107497 DOI: 10.1007/s00018-017-2508-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 02/28/2017] [Accepted: 03/14/2017] [Indexed: 12/19/2022]
Abstract
The reprogramming of glucose metabolism from oxidative to glycolytic metabolism, known as the Warburg effect, is an anomalous characteristic of cancer cell metabolism. Recent studies have revealed a subset of microRNAs (miRNAs) that play critical roles in regulating the reprogramming of glucose metabolism in cancer cells. These miRNAs regulate cellular glucose metabolism by directly targeting multiple metabolic genes, including those encoding key glycolytic enzymes. In the first part of this review, we summarized the recent knowledge of miRNA regulation in the reprogramming of glucose metabolism in cancer cells and discussed the potential utilization of the key miRNA regulators as metabolic targets for developing new antitumor agents. Then, we summarized recent advances in methods and techniques for studying miRNA regulation in cancer cell metabolism.
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Affiliation(s)
- Ling-Fei Zhang
- Center for RNA Research, State Key Laboratory of Molecular Biology, University of Chinese Academy of Sciences, CAS Center for Excellence in Molecular Cell Science, Shanghai, China
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, 200032, China
| | - Shuai Jiang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA.
| | - Mo-Fang Liu
- Center for RNA Research, State Key Laboratory of Molecular Biology, University of Chinese Academy of Sciences, CAS Center for Excellence in Molecular Cell Science, Shanghai, China.
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
- School of Life Science and Technology, Shanghai Tech University, Shanghai, 200031, China.
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LncRNA-SARCC suppresses renal cell carcinoma (RCC) progression via altering the androgen receptor(AR)/miRNA-143-3p signals. Cell Death Differ 2017. [PMID: 28644440 DOI: 10.1038/cdd.2017.74] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
While the androgen receptor (AR) might promote renal cell carcinoma (RCC) initiation and progression, the molecular mechanisms involved remain largely unclear. Here, we discovered the novel LncRNA-SARCC, which was suppressed and associated with better prognosis in RCC. Preclinical studies using multiple RCC cells and in vivo mouse model indicated that LncRNA-SARCC could attenuate RCC cell invasion, migration and proliferation in vitro and in vivo. Mechanistically, LncRNA-SARCC bound and destabilized AR protein with an inhibition of AR function, which led to transcriptionally de-repress miR-143-3p expression, thus inhibition of its downstream signals including AKT, MMP-13, K-RAS and P-ERK. In addition, bisulfite sequencing analysis substantiated that LncRNA-SARCC promoter was highly methylated in renal cancer tissues compared with paired non-cancerous renal tissues. Notably, treating with Sunitinib, the multi-targeted receptor tyrosine kinase inhibitor, increased the expression of LncRNA-SARCC, which decreased RCC cells resistance to Sunitinib. Thus, our study presented a road map for targeting this newly identified LncRNA-SARCC and its pathway, which expands potential therapeutic strategies for RCC treatment.
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65
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Fong LY, Jing R, Smalley KJ, Taccioli C, Fahrmann J, Barupal DK, Alder H, Farber JL, Fiehn O, Croce CM. Integration of metabolomics, transcriptomics, and microRNA expression profiling reveals a miR-143-HK2-glucose network underlying zinc-deficiency-associated esophageal neoplasia. Oncotarget 2017; 8:81910-81925. [PMID: 29137232 PMCID: PMC5669858 DOI: 10.18632/oncotarget.18434] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 05/29/2017] [Indexed: 01/01/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) in humans is a deadly disease associated with dietary zinc (Zn)-deficiency. In the rat esophagus, Zn-deficiency induces cell proliferation, alters mRNA and microRNA gene expression, and promotes ESCC. We investigated whether Zn-deficiency alters cell metabolism by evaluating metabolomic profiles of esophageal epithelia from Zn-deficient and replenished rats vs sufficient rats, using untargeted gas chromatography time-of-flight mass spectrometry (n = 8/group). The Zn-deficient proliferative esophagus exhibits a distinct metabolic profile with glucose down 153-fold and lactic acid up 1.7-fold (P < 0.0001), indicating aerobic glycolysis (the “Warburg effect”), a hallmark of cancer cells. Zn-replenishment rapidly increases glucose content, restores deregulated metabolites to control levels, and reverses the hyperplastic phenotype. Integration of metabolomics and our reported transcriptomic data for this tissue unveils a link between glucose down-regulation and overexpression of HK2, an enzyme that catalyzes the first step of glycolysis and is overexpressed in cancer cells. Searching our published microRNA profile, we find that the tumor-suppressor miR-143, a negative regulator of HK2, is down-regulated in Zn-deficient esophagus. Using in situ hybridization and immunohistochemical analysis, the inverse correlation between miR-143 down-regulation and HK2 overexpression is documented in hyperplastic Zn-deficient esophagus, archived ESCC-bearing Zn-deficient esophagus, and human ESCC tissues. Thus, to sustain uncontrolled cell proliferation, Zn-deficiency reprograms glucose metabolism by modulating expression of miR-143 and its target HK2. Our work provides new insight into critical roles of Zn in ESCC development and prevention.
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Affiliation(s)
- Louise Y Fong
- Department of Pathology, Anatomy & Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA.,Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA.,Center for Molecular Carcinogenesis, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ruiyan Jing
- Department of Pathology, Anatomy & Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Karl J Smalley
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Cristian Taccioli
- Animal Medicine, Production and Health Department, University of Padua, Padua, Italy
| | - Johannes Fahrmann
- University of California, Davis, West Coast Metabolomics Center, Davis, CA, USA
| | - Dinesh K Barupal
- University of California, Davis, West Coast Metabolomics Center, Davis, CA, USA
| | - Hansjuerg Alder
- Department of Molecular Virology, Immunology, and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - John L Farber
- Department of Pathology, Anatomy & Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Oliver Fiehn
- University of California, Davis, West Coast Metabolomics Center, Davis, CA, USA.,Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Carlo M Croce
- Department of Molecular Virology, Immunology, and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
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66
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Morais M, Dias F, Teixeira AL, Medeiros R. MicroRNAs and altered metabolism of clear cell renal cell carcinoma: Potential role as aerobic glycolysis biomarkers. Biochim Biophys Acta Gen Subj 2017; 1861:2175-2185. [PMID: 28579513 DOI: 10.1016/j.bbagen.2017.05.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 05/09/2017] [Accepted: 05/30/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Warburg Effect is a metabolic switch that occurs in most of cancer cells but its advantages are not fully understood. This switch is known to happen in renal cell carcinoma (RCC), which is the most common solid cancer of the adult kidney. RCC carcinogenesis is related to pVHL loss and Hypoxia Inducible Factor (HIF) activation, ultimately leading to the activation of several genes related to glycolysis. MicroRNAs (miRNAs) regulate gene expression at a post-transcriptional level and are also deregulated in several cancers, including RCC. SCOPE OF REVIEW This review focuses in the miRNAs that direct target enzymes involved in glycolysis and that are deregulated in several cancers. It also reviews the possible application of miRNAs in the improvement of clinical patients' management. MAJOR CONCLUSIONS Several miRNAs that direct target enzymes involved in glycolysis are downregulated in cancer, strongly influencing the Warburg Effect. Due to this strong influence, FDG-PET can possibly benefit from measurement of these miRNAs. Restoring their levels can also bring an improvement to the current therapies. GENERAL SIGNIFICANCE Despite being known for almost a hundred years, the Warburg Effect is not fully understood. MiRNAs are now known to be intrinsically connected with this effect and present an opportunity to understand it. They also open a new door to improve current diagnosis and prognosis tests as well as to complement current therapies. This is urgent for cancers like RCC, mostly due to the lack of an efficient screening test for early relapse detection and follow-up and the development of resistance to current therapies.
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Affiliation(s)
- Mariana Morais
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO-Porto), Porto, Portugal; ICBAS, Abel Salazar Institute for the Biomedical Sciences, University of Porto, Portugal
| | - Francisca Dias
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO-Porto), Porto, Portugal; ICBAS, Abel Salazar Institute for the Biomedical Sciences, University of Porto, Portugal; Research Department, LPCC-Portuguese League, Against Cancer (NRNorte), Porto, Portugal
| | - Ana L Teixeira
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO-Porto), Porto, Portugal; Research Department, LPCC-Portuguese League, Against Cancer (NRNorte), Porto, Portugal.
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, IPO-Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO-Porto), Porto, Portugal; Research Department, LPCC-Portuguese League, Against Cancer (NRNorte), Porto, Portugal; CEBIMED, Faculty of Health Sciences, Fernando Pessoa University, Porto, Portugal; FMUP, Faculty of Medicine, University of Porto, Portugal.
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67
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Regulation of ITGA3 by the dual-stranded microRNA-199 family as a potential prognostic marker in bladder cancer. Br J Cancer 2017; 116:1077-1087. [PMID: 28324890 PMCID: PMC5396103 DOI: 10.1038/bjc.2017.43] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/23/2017] [Accepted: 01/27/2017] [Indexed: 01/02/2023] Open
Abstract
Background: Based on the microRNA (miRNA) signature of bladder cancer (BC) by deep sequencing, we recently found that several double-stranded mature miRNAs derived from the same pre-miRNAs were sufficiently expressed and acted as tumour suppressors by regulating common target genes in BC. Our deep-sequencing signature of BC showed that all miR-199 family members (miR-199a-3p/-5p and miR-199b-3p/-5p) were also downregulated. We hypothesised that these miRNAs may function as tumour suppressors by regulating common target genes. Methods: Functional assays of BC cells were performed using transfection of mature miRNA. In silico analyses and luciferase reporter analyses were applied to identify target genes of these miRNAs. The overall survival of patients with BC in The Cancer Genome Atlas (TCGA) database was evaluated by the Kaplan–Meier method. Results: Restoration of these miRNAs significantly inhibited cell migration and invasion in BC cells. Integrin α3 (ITGA3) was directly regulated by these miRNAs. The Cancer Genome Atlas database showed that patients with low pre-miR-199 family (miR-199a-1/-2 and miR-199b) expression exhibited significantly poorer overall survival compared with patients with high pre-miR-199 family expression. Conclusions: miR-199 family miRNAs functioned as tumour suppressors in BC cells by targeting ITGA3 and might be good prognostic markers for predicting survival in patients with BC.
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68
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Li LQ, Yang Y, Chen H, Zhang L, Pan D, Xie WJ. MicroRNA-181b inhibits glycolysis in gastric cancer cells via targeting hexokinase 2 gene. Cancer Biomark 2017; 17:75-81. [PMID: 27314295 DOI: 10.3233/cbm-160619] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Cancer cells usually utilize glucose as a carbon source for aerobic glycolysis, which is named as ``Warburg effect''. Recent studies have shown that MicroRNAs (miRNAs), a class of short and non-coding RNAs, play a role in the regulation of metabolic reprograming in cancer cells. In the present study, we report that miR-181b negatively regulates glycolysis in gastric cancer cells. Over-expression of miR-181b mimics reduces the glucose uptake and lactate production, while increasing the cellular ATP levels in NCI-N87 and MGC80-3 cells. At the molecular level, miR-181b directly inhibits the expression level of hexokinase 2 (HK2), a key enzyme that catalyzes the first step of glycolysis, through targeting its 3'-untranslated region. In addition, miR-181b represses cell proliferation and migration and is dramatically down-regulated in human gastric cancers. Therefore, our data disclose a novel function of miR-181b in reprogramming the metabolic process in gastric cancer.
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69
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Interplay between epigenetics and metabolism in oncogenesis: mechanisms and therapeutic approaches. Oncogene 2017; 36:3359-3374. [PMID: 28092669 PMCID: PMC5485177 DOI: 10.1038/onc.2016.485] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 02/06/2023]
Abstract
Epigenetic and metabolic alterations in cancer cells are highly intertwined. Oncogene-driven metabolic rewiring modifies the epigenetic landscape via modulating the activities of DNA and histone modification enzymes at the metabolite level. Conversely, epigenetic mechanisms regulate the expression of metabolic genes, thereby altering the metabolome. Epigenetic-metabolomic interplay has a critical role in tumourigenesis by coordinately sustaining cell proliferation, metastasis and pluripotency. Understanding the link between epigenetics and metabolism could unravel novel molecular targets, whose intervention may lead to improvements in cancer treatment. In this review, we summarized the recent discoveries linking epigenetics and metabolism and their underlying roles in tumorigenesis; and highlighted the promising molecular targets, with an update on the development of small molecule or biologic inhibitors against these abnormalities in cancer.
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Abstract
PURPOSE OF REVIEW Pulmonary arterial hypertension (PAH) is a rare disease with poor prognosis and no therapeutics. PAH is characterized by severe remodeling of precapillary pulmonary arteries, leading to increased vascular resistance, pulmonary hypertension compensatory right ventricular hypertrophy, then heart failure and death. PAH pathogenesis shares similarities with carcinogenesis such as excessive cell proliferation, apoptosis resistance, metabolic shifts, or phenotypic transition. Although PAH is not a cancer, comparison of analogous mechanisms between PAH and cancer led to the concept of a cancer-like disease to emerge. MicroRNAs (miRNAs) are small noncoding RNAs involved in the regulation of posttranscriptional gene expression. miRNA dysregulations have been reported as promoter of the development of various diseases including cancers. RECENT FINDINGS Recent studies revealed that miRNA dysregulations also occur in PAH pathogenesis. In PAH, different miRNAs have been implicated to be the main features of PAH pathophysiology (in pulmonary inflammation, vascular remodeling, angiogenesis, and right heart hypertrophy). SUMMARY The review summarizes the implication of miRNA dysregulation in PAH development and discusses the similarities and differences with those observed in cancers.
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71
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Miao Y, Zhang LF, Guo R, Liang S, Zhang M, Shi S, Shang-Guan CF, Liu MF, Li B. (18)F-FDG PET/CT for Monitoring the Response of Breast Cancer to miR-143-Based Therapeutics by Targeting Tumor Glycolysis. MOLECULAR THERAPY. NUCLEIC ACIDS 2016; 5:e357. [PMID: 27574783 PMCID: PMC5023410 DOI: 10.1038/mtna.2016.72] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 07/18/2016] [Indexed: 02/07/2023]
Abstract
Increased glucose utilization is a hallmark of cancer, and tumor metabolism is emerging as anticancer target for therapeutic intervention. Triple-negative breast cancers TNBC are highly glycolytic and show poor clinical outcomes. We previously identified hexokinase 2, the major glycolytic enzyme, as a target gene of miR-143 in TNBC. Here, we developed a therapeutic formulation using cholesterol-modified miR-143 agomir encapsulated in a neutral lipid-based delivery agent that blocked tumor growth and glucose metabolism in TNBC tumor-bearing mice when administered systemically. The antioncogenic effects were accompanied by a reduction in the direct target hexokinase 2 and [18F]-fluorodeoxyglucose (18F-FDG) uptake based on positron emission tomography/computed tomography. Treatment with miR-143 formulation has minimal toxic effects and mice tolerated it well. Thus, we demonstrated that miR-143 is a robust inhibitor of the Warburg effect and an effective therapeutic target for TNBC. In addition, 18F-FDG positron emission tomography/computed tomography can be used to specifically monitor the response of TNBC to miR-143-based therapeutics by targeting tumor glycolysis.
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Affiliation(s)
- Ying Miao
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ling-Fei Zhang
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Rui Guo
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Sheng Liang
- Department of Nuclear Medicine, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Min Zhang
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shuo Shi
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Cheng-Fang Shang-Guan
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Mo-Fang Liu
- Center for RNA Research, State Key Laboratory of Molecular Biology-University of Chinese Academy of Sciences, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Biao Li
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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72
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Kurozumi A, Goto Y, Okato A, Ichikawa T, Seki N. Aberrantly expressed microRNAs in bladder cancer and renal cell carcinoma. J Hum Genet 2016; 62:49-56. [PMID: 27357429 DOI: 10.1038/jhg.2016.84] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 02/06/2023]
Abstract
Bladder cancer (BC) and renal cell carcinoma (RCC) are frequently diagnosed urinary tract cancers. Recently developed molecular-targeted therapies for RCC have shown remarkable therapeutic efficacy; however, no targeted therapeutics are currently approved for the treatment of BC, and few effective treatment options exist. Current studies have shown that small noncoding RNA molecules have major roles in cancer cells. MicroRNAs (miRNAs) are endogenous small noncoding RNA molecules that regulate protein-/nonprotein-coding RNAs in human cells. A large body of evidence suggests that aberrantly expressed miRNAs are deeply involved in the pathogenesis of human cancers. In this paper, we review recently published miRNA expression signatures of BC and RCC. We focus on downregulated or upregulated miRNAs in multiple signatures and discuss putative target genes of miRNAs. Comparisons of RCC and BC expression signatures revealed that the two types of cancer showed opposite expression patterns for miR-200 family miRNAs (i.e., miR-141/200c and miR-200a/200b/429). We discuss in silico analysis of genes targeted by miR-200 family miRNAs and the molecular mechanisms underlying BC and RCC.
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Affiliation(s)
- Akira Kurozumi
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Urology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yusuke Goto
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Urology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Atsushi Okato
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Urology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tomohiko Ichikawa
- Department of Urology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Graduate School of Medicine, Chiba University, Chiba, Japan
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73
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Liep J, Kilic E, Meyer HA, Busch J, Jung K, Rabien A. Cooperative Effect of miR-141-3p and miR-145-5p in the Regulation of Targets in Clear Cell Renal Cell Carcinoma. PLoS One 2016; 11:e0157801. [PMID: 27336447 PMCID: PMC4919070 DOI: 10.1371/journal.pone.0157801] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/04/2016] [Indexed: 12/17/2022] Open
Abstract
Background Due to the poor prognosis for advanced renal cell carcinoma (RCC), there is an urgent need for new therapeutic targets and for prognostic markers to identify high risk tumors. MicroRNAs (miRNAs) are frequently dysregulated in tumors, play a crucial role during carcinogenesis and therefore might be promising new biomarkers. In previous studies, we identified miR-141-3p and miR-145-5p to be downregulated in clear cell RCC (ccRCC). Our objective was to investigate the functional association of these miRNAs, focusing on the cooperative regulation of new specific targets and their role in ccRCC progression. Methods The effect of miR-141-3p and miR-145-5p on cell migration was examined by overexpression in 786-O cells. New targets of both miRNAs were identified by miRWalk, validated in 786-O and ACHN cells and additionally characterized in ccRCC tissue on mRNA and protein level. Results In functional analysis, a tumor suppressive effect of miR-141-3p and miR-145-5p by decreasing migration and invasion of RCC cells could be shown. Furthermore, co-overexpression of the miRNAs seemed to result in an increased inhibition of cell migration. Both miRNAs were recognized as post-transcriptional regulators of the targets EAPP, HS6ST2, LOX, TGFB2 and VRK2. Additionally, they showed a cooperative effect again as demonstrated by a significantly increased inhibition of HS6ST2 and LOX expression after simultaneous overexpression of both miRNAs. In ccRCC tissue, LOX mRNA expression was strongly increased compared to normal tissue, allowing also to distinguish between non-metastatic and already metastasized primary tumors. Finally, in subsequent tissue microarray analysis LOX protein expression showed a prognostic relevance for the overall survival of ccRCC patients. Conclusion These results illustrate a jointly strengthening effect of the dysregulated miR-141-3p and miR-145-5p in various tumor associated processes. Focusing on the cooperative effect of miRNAs provides new opportunities for the development of therapeutic strategies and offers novel prognostic and diagnostic capabilities.
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Affiliation(s)
- Julia Liep
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute for Urologic Research, Berlin, Germany
| | - Ergin Kilic
- Institute of Pathology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Hellmuth A. Meyer
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jonas Busch
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Klaus Jung
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute for Urologic Research, Berlin, Germany
| | - Anja Rabien
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute for Urologic Research, Berlin, Germany
- * E-mail:
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74
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Miyamoto K, Seki N, Matsushita R, Yonemori M, Yoshino H, Nakagawa M, Enokida H. Tumour-suppressive miRNA-26a-5p and miR-26b-5p inhibit cell aggressiveness by regulating PLOD2 in bladder cancer. Br J Cancer 2016; 115:354-63. [PMID: 27310702 PMCID: PMC4973152 DOI: 10.1038/bjc.2016.179] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/05/2016] [Accepted: 05/17/2016] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Previous studies have revealed that miR-26a-5p and miR-26b-5p act as tumour suppressors in various types of cancer tissues. Here, we aimed to investigate the functional roles of these miRNAs and to identify their regulatory targets in bladder cancer (BC). METHODS We performed functional assays in BC cells using transfection of mature microRNAs (miRNAs). In silico and luciferase reporter analyses were applied to identify target genes of these miRNAs. The overall survival (OS) of patients with BC was evaluated by the Kaplan-Meier method. RESULTS miR-26a-5p and miR-26b-5p were significantly downregulated in BC tissues. Restoration of these miRNAs inhibited cell migration and invasion in BC. The gene encoding procollagen-lysine, 2-oxoglutarate 5-dioxygenase 2 (PLOD2), a collagen crosslinking enzyme, was directly regulated by miR-26a-5p and miR-26b-5p. Kaplan-Meier analysis revealed that patients with high PLOD2 expression had significantly shorter OS compared with those with low PLOD2 expression (P=0.0153). CONCLUSIONS PLOD2, which is associated with the stiffness of the extracellular matrix, was directly regulated by miR-26a-5p and miR-26b-5p and may be a good prognostic marker in patients with BC.
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Affiliation(s)
- K Miyamoto
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - N Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - R Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - M Yonemori
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - H Yoshino
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - M Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - H Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
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Papadopoulos EI, Petraki C, Gregorakis A, Fragoulis EG, Scorilas A. Clinical evaluation of microRNA-145 expression in renal cell carcinoma: a promising molecular marker for discriminating and staging the clear cell histological subtype. Biol Chem 2016; 397:529-39. [DOI: 10.1515/hsz-2015-0284] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/04/2016] [Indexed: 11/15/2022]
Abstract
Abstract
The vast majority of malignancies detected in renal parenchyma are diagnosed as renal cell carcinoma (RCC), whose subtype discrimination and determination of prognosis may contribute to the selection of the adequate therapy. Recently, a new class of small non-coding RNAs, known as microRNAs, has proven to be among the most promising biomarkers for providing this information. Herein, we sought to add up to this knowledge by evaluating the expression levels of microRNA-145 (miR-145) in RCC. For that purpose, total RNA from 58 cancerous and 44 adjacent non-cancerous renal tissues was firstly extracted and then polyadenylated and reverse transcribed to cDNA. MiR-145 levels were finally analyzed by developing and applying a highly sensitive real-time PCR protocol, while their clinical significance was determined via comprehensive statistical analysis. Our data showed that miR-145 was significantly downregulated in cancerous samples and could discriminate between clear cell and non-clear cell subtypes. Moreover, miR-145 expression was found to be correlated with primary tumor staging of cancerous samples, something also noticed in the clear cell RCC subset, in which miR-145 levels were negatively correlated with tumor size as well. Overall, these results indicate that miR-145 might constitute a promising molecular marker for RCC classification and staging.
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76
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Kurozumi A, Kato M, Goto Y, Matsushita R, Nishikawa R, Okato A, Fukumoto I, Ichikawa T, Seki N. Regulation of the collagen cross-linking enzymes LOXL2 and PLOD2 by tumor-suppressive microRNA-26a/b in renal cell carcinoma. Int J Oncol 2016; 48:1837-46. [PMID: 26983694 PMCID: PMC4809659 DOI: 10.3892/ijo.2016.3440] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 02/22/2016] [Indexed: 12/29/2022] Open
Abstract
Our recent studies of microRNA (miRNA) expression signatures in human cancers revealed that microRNA-26a (miRNA-26a) and microRNA-26b (miRNA-26b) were significantly reduced in cancer tissues. To date, few reports have provided functional analyses of miR-26a or miR-26b in renal cell carcinoma (RCC). The aim of the present study was to investigate the functional significance of miR-26a and miR-26b in RCC and to identify novel miR-26a/b-mediated cancer pathways and target genes involved in RCC oncogenesis and metastasis. Downregulation of miR-26a or miR-26b was confirmed in RCC clinical specimens. Restoration of miR-26a or miR-26b in RCC cell lines (786-O and A498) revealed that these miRNAs significantly inhibited cancer cell migration and invasion. Our in silico analysis and luciferase reporter assays showed that lysyl oxidase-like 2 (LOXL2) and procollagen-lysine, 2-oxoglutarate 5-dioxygenase 2 (PLOD2) were directly regulated by these miRNAs. Moreover, downregulating the PLOD2 gene significantly inhibited cell migration and invasion in RCC cells. Thus, our data showed that two genes promoting metastasis, LOXL2 and PLOD2, were epigenetically regulated by tumor-suppressive microRNAs, miR-26a and miR-26b, providing important insights into the molecular mechanisms of RCC metastasis.
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Affiliation(s)
- Akira Kurozumi
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Mayuko Kato
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Yusuke Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Rika Nishikawa
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Atsushi Okato
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Ichiro Fukumoto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Tomohiko Ichikawa
- Department of Urology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
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MicroRNAs in the Pathogenesis of Renal Cell Carcinoma and Their Diagnostic and Prognostic Utility as Cancer Biomarkers. Int J Biol Markers 2016; 31:e26-37. [DOI: 10.5301/jbm.5000174] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2015] [Indexed: 12/18/2022]
Abstract
Purpose To provide information about the role of microRNAs in the pathogenesis of renal cell carcinoma (RCC) and their diagnostic and prognostic utility as cancer biomarkers. Methods A literature search was performed in the PubMed and Web of Science databases using the keywords “renal cancer/renal cell carcinoma/kidney cancer” and “miR*/miRNA*/microRNA*”. Articles dealing with the role of miRNAs in the pathogenesis of RCC, diagnostic miRNAs and prognostic miRNAs were separated. Results MiRNAs act both as oncogenes and tumor suppressors. They regulate apoptosis, cell growth, migration, invasion, proliferation, colony formation and angiogenesis through target proteins involved in several signaling pathways, and they are involved in key pathogenetic mechanisms such as hypoxia (HIF/VHL dependent) and epithelial-to-mesenchymal transition. Differentially expressed miRNAs can discriminate either tumor tissue from healthy renal tissue or different RCC subtypes. Circulating miRNAs are promissing as diagnostic biomarkers of RCC. Information about urinary miRNAs associated with RCC is sparse. Detection of a relapse is another implication of diagnostic miRNAs. The expression profiles of several miRNAs correlate with the prognosis of RCC patients. Comparison between primary tumor tissue and metastasis may help identify high-risk primary tumors. Finally, response to target therapy can be estimated thanks to differences in miRNA expression in tissue and serum of therapy-resistant versus therapy-sensitive patients. Conclusions Our understanding of the role of microRNAs in RCC pathogenesis has been increasing dramatically. Identification and validation of their gene targets may have direct impact on developing microRNA-based anticancer therapy. Several microRNAs can serve as diagnostic and prognostic biomarkers.
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78
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Chandra V, Kim JJ, Mittal B, Rai R. MicroRNA aberrations: An emerging field for gallbladder cancer management. World J Gastroenterol 2016; 22:1787-1799. [PMID: 26855538 PMCID: PMC4724610 DOI: 10.3748/wjg.v22.i5.1787] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/12/2015] [Accepted: 12/21/2015] [Indexed: 02/06/2023] Open
Abstract
Gallbladder cancer (GBC) is infrequent but most lethal biliary tract malignancy characterized by an advanced stage diagnosis and poor survival rates attributed to absence of specific symptoms and effective treatment options. These necessitate development of early prognostic/predictive markers and novel therapeutic interventions. MicroRNAs (miRNAs) are small, non-coding RNA molecules that play a key role in tumor biology by functioning like tumor suppressor- or onco- genes and their aberrant expression are associated with the pathogenesis of several neoplasms with overwhelming clinical implications. Since miRNA signature is tissue specific, here, we focused on current data concerning the miRNAs abberations in GBC pathogenesis. In GBC, miRNAs with tumor suppressor activity (miR-135-5p, miR-335, miR-34a, miR-26a, miR-146b-5p, Mir-218-5p, miR-1, miR-145, mir-130a) were found downregulated, while those with oncogenic property (miR-20a, miR-182, mir-155) were upregulated. The expression profile of miRNAs was significantly associated with GBC prognosis and prediction, and forced over-expression/ inhibition of these miRNAs was shown to affect tumor growth and development. Further, differential expression of miRNAs in the blood samples of GBC patients suggest miRNAs as promising noninvasive biomarker. Thus, miRNAs represent potential candidate for GBC management, though many hurdles need to be overcome before miRNAs therapy can be clinically applied to GBC prevention and treatment.
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79
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Candia J, Cherukuri S, Guo Y, Doshi KA, Banavar JR, Civin CI, Losert W. Uncovering low-dimensional, miR-based signatures of acute myeloid and lymphoblastic leukemias with a machine-learning-driven network approach. CONVERGENT SCIENCE PHYSICAL ONCOLOGY 2015; 1. [PMID: 27274862 DOI: 10.1088/2057-1739/1/2/025002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Complex phenotypic differences among different acute leukemias cannot be fully captured by analyzing the expression levels of one single molecule, such as a miR, at a time, but requires systematic analysis of large sets of miRs. While a popular approach for analysis of such datasets is principal component analysis (PCA), this method is not designed to optimally discriminate different phenotypes. Moreover, PCA and other low-dimensional representation methods yield linear or non-linear combinations of all measured miRs. Global human miR expression was measured in AML, B-ALL, and TALL cell lines and patient RNA samples. By systematically applying support vector machines to all measured miRs taken in dyad and triad groups, we built miR networks using cell line data and validated our findings with primary patient samples. All the coordinately transcribed members of the miR-23a cluster (which includes also miR-24 and miR-27a), known to function as tumor suppressors of acute leukemias, appeared in the AML, B-ALL and T-ALL centric networks. Subsequent qRT-PCR analysis showed that the most connected miR in the B-ALL-centric network, miR-708, is highly and specifically expressed in B-ALLs, suggesting that miR-708 might serve as a biomarker for B-ALL. This approach is systematic, quantitative, scalable, and unbiased. Rather than a single signature, our approach yields a network of signatures reflecting the redundant nature of biological signaling pathways. The network representation allows for visual analysis of all signatures by an expert and for future integration of additional information. Furthermore, each signature involves only small sets of miRs, such as dyads and triads, which are well suited for in depth validation through laboratory experiments. In particular, loss-and gain-of-function assays designed to drive changes in leukemia cell survival, proliferation and differentiation will benefit from the identification of multi-miR signatures that characterize leukemia subtypes and their normal counterpart cells of origin.
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Affiliation(s)
- Julián Candia
- Center for Human Immunology, Autoimmunity and Inflammation, National Institutes of Health, Bethesda, MD 20892, USA; Department of Physics, University of Maryland, College Park, MD 20742, USA; Center for Stem Cell Biology & Regenerative Medicine, Departments of Pediatrics and Physiology, University of Maryland School of Medicine, Baltimore MD 21201, USA
| | - Srujana Cherukuri
- Center for Stem Cell Biology & Regenerative Medicine, Departments of Pediatrics and Physiology, University of Maryland School of Medicine, Baltimore MD 21201, USA; Noble Life Sciences, 22 Firstfield Rd, Gaithersburg, MD 20878, USA
| | - Yin Guo
- Center for Stem Cell Biology & Regenerative Medicine, Departments of Pediatrics and Physiology, University of Maryland School of Medicine, Baltimore MD 21201, USA
| | - Kshama A Doshi
- Center for Stem Cell Biology & Regenerative Medicine, Departments of Pediatrics and Physiology, University of Maryland School of Medicine, Baltimore MD 21201, USA
| | - Jayanth R Banavar
- Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Curt I Civin
- Center for Stem Cell Biology & Regenerative Medicine, Departments of Pediatrics and Physiology, University of Maryland School of Medicine, Baltimore MD 21201, USA
| | - Wolfgang Losert
- Department of Physics, University of Maryland, College Park, MD 20742, USA
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80
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Xue M, Pang H, Li X, Li H, Pan J, Chen W. Long non-coding RNA urothelial cancer-associated 1 promotes bladder cancer cell migration and invasion by way of the hsa-miR-145-ZEB1/2-FSCN1 pathway. Cancer Sci 2015; 107:18-27. [PMID: 26544536 PMCID: PMC4724815 DOI: 10.1111/cas.12844] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 10/08/2015] [Accepted: 11/01/2015] [Indexed: 12/14/2022] Open
Abstract
Numerous studies suggest that several long non‐coding RNAs (lncRNAs) play critical roles in bladder cancer development and progression. Long non‐coding RNA urothelial cancer‐associated 1 (lncRNA‐UCA1) is highly expressed in bladder cancer tissues and cells, and it has been shown to play an important role in regulating aggressive phenotypes of bladder cancer cells. However, little is known about the molecular mechanism of lncRNA‐UCA1‐mediated bladder cancer cell migration and invasion. Here, we show that overexpression of lncRNA‐UCA1 could induce EMT and increase the migratory and invasive abilities of bladder cancer cells. Mechanistically, lncRNA‐UCA1 induced EMT of bladder cancer cells by upregulating the expression levels of zinc finger E‐box binding homeobox 1 and 2 (ZEB1 and ZEB2), and regulated bladder cancer cell migration and invasion by tumor suppressive hsa‐miR‐145 and its target gene the actin‐binding protein fascin homologue 1 (FSCN1). Furthermore, we also observed a positive correlation between lncRNA‐UCA1 and ZEB1/2 expression, and a negative correlation between lncRNA‐UCA1 and hsa‐miR‐145 expression in bladder cancer specimens. Importantly, we found that lncRNA‐UCA1 repressed hsa‐miR‐145 expression to upregulate ZEB1/2, whereas the suppression of hsa‐miR‐145 could upregulate lncRNA‐UCA1 expression in bladder cancer cells. Moreover, the binding site for hsa‐miR‐145 within exons 2 and 3 of lncRNA‐UCA1 contributed to the reciprocal negative regulation of lncRNA‐UCA1 and hsa‐miR‐145. Taken together, our results identified that lncRNA‐UCA1 enhances bladder cancer cell migration and invasion in part through the hsa‐miR‐145/ZEB1/2/FSCN1 pathway. Therefore, lncRNA‐UCA1 might act as a promising therapeutic target for the invasion and metastasis of bladder cancer.
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Affiliation(s)
- Mei Xue
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Huan Pang
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xu Li
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Huijin Li
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingjing Pan
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Chen
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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81
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Tang Y, Wan W, Wang L, Ji S, Zhang J. microRNA-451 inhibited cell proliferation, migration and invasion through regulation of MIF in renal cell carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:15611-15621. [PMID: 26884830 PMCID: PMC4730043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 11/22/2015] [Indexed: 06/05/2023]
Abstract
The expression and functions of microRNA-451 have been studied in many human cancers. However, up to date, there is no study of microRNA-451 in renal cell carcinoma. In the present study, we aimed to investigate the expression, biological functions and molecular mechanisms of microRNA-451 in renal cell carcinoma. microRNA-451 expression level in renal cell carcinoma tissues and cell lines was measured using quantitative Real-time PCR. By using CCK8 assay, cell migration and invasion assay, we explored the functions of microRNA-451 in renal cell carcinoma. Dual-Luciferase report assay, quantitative Real-time PCR and western blot were performed to explore the molecular mechanisms of microRNA-451 functions in renal cell carcinoma. Functional assays were also performed to explore the effects of endogenous MIF in renal cell carcinoma. In this study, we showed for the first time that microRNA-451 was significantly down-regulated in renal cell carcinomas tissues and cell lines. microRNA-451 expression level was correlated with histological grade and lymph node metastasis. In addition, microRNA-451 inhibited proliferation, migration and invasion of renal cell carcinomas cells. Moreover, MIF was identified as a target of microRNA-451, and down-regulation of MIF could mimic the suppressive functions of microRNA-451 in renal cell carcinomas, suggesting that microRNA-451 might be a novel therapeutic strategy for the treatment of renal cell carcinomas.
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Affiliation(s)
- Yan Tang
- Department of Oncology, Yidu Central Hospital of Weifang, Weifang Medical UniversityWeifang, China
| | - Wei Wan
- Department of General Surgery, Yidu Central Hospital of Weifang, Weifang Medical UniversityWeifang, China
| | - Lijuan Wang
- Department of General Surgery, Weifang No. 3 People’s HospitalWeifang, China
| | - Shishun Ji
- Department of Oncology, Yidu Central Hospital of Weifang, Weifang Medical UniversityWeifang, China
| | - Juanjuan Zhang
- Department of Oncology, Yidu Central Hospital of Weifang, Weifang Medical UniversityWeifang, China
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82
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Das AV, Pillai RM. Implications of miR cluster 143/145 as universal anti-oncomiRs and their dysregulation during tumorigenesis. Cancer Cell Int 2015; 15:92. [PMID: 26425114 PMCID: PMC4588501 DOI: 10.1186/s12935-015-0247-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 09/22/2015] [Indexed: 02/07/2023] Open
Abstract
Tumorigenesis is a multistep process, de-regulated due to the imbalance of oncogenes as well as anti-oncogenes, resulting in disruption of tissue homeostasis. In many cases the effect of oncogenes and anti-oncogenes are mediated by various other molecules such as microRNAs. microRNAs are small non-coding RNAs established to post-transcriptionally regulate more than half of the protein coding genes. miR cluster 143/145 is one such cancer-related microRNA cluster which is down-regulated in most of the cancers and is able to hinder tumorigenesis by targeting tumor-associated genes. The fact that they could sensitize drug-resistant cancer cells by targeting multidrug resistant genes makes them potent tools to target cancer cells. Their low levels precede events which lead to cancer progression and therefore could be considered also as biomarkers to stage the disease. Interestingly, evidence suggests the existence of several in vivo mechanisms by which this cluster is differentially regulated at the molecular level to keep their levels low in cancer. In this review, we summarize the roles of miR cluster 143/145 in cancer, their potential prognostic applications and also their regulation during tumorigenesis.
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Affiliation(s)
- Ani V Das
- Cancer Research Program-9, Rajiv Gandhi Centre for Biotechnology, Thycaud.P.O., Thiruvananthapuram-14, Kerala India
| | - Radhakrishna M Pillai
- Cancer Research Program-9, Rajiv Gandhi Centre for Biotechnology, Thycaud.P.O., Thiruvananthapuram-14, Kerala India
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83
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Goto Y, Kojima S, Nishikawa R, Enokida H, Chiyomaru T, Kinoshita T, Nakagawa M, Naya Y, Ichikawa T, Seki N. The microRNA-23b/27b/24-1 cluster is a disease progression marker and tumor suppressor in prostate cancer. Oncotarget 2015; 5:7748-59. [PMID: 25115396 PMCID: PMC4202158 DOI: 10.18632/oncotarget.2294] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Our recent study of microRNA (miRNA) expression signatures in prostate cancer (PCa) has revealed that all members of the miR-23b/27b/24-1 cluster are significantly downregulated in PCa tissues. The aim of this study was to investigate the effectiveness of these clustered miRNAs as a disease progression marker and to determine the functional significance of these clustered miRNAs in PCa. Expression of the miR-23b/27b/24-1 cluster was significantly reduced in PCa tissues. Kaplan-Meier survival curves showed that low expression of miR-27b predicted a short duration of progression to castration-resistant PCa. Gain-of-function studies using mature miR-23b, miR-27b, and miR-24-1 significantly inhibited cell proliferation, migration and invasion in PCa cells (PC3 and DU145). To identify the molecular targets of these miRNAs, we carried out gene expression and in silico database analyses. GOLM1 was directly regulated by miR-27b in PCa cells. Elucidation of the molecular targets and pathways regulated by the tumor-suppressive microRNAs should shed light on the oncogenic and metastatic processes in PCa.
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Affiliation(s)
- Yusuke Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan. Department of Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Satoko Kojima
- Department of Urology, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Rika Nishikawa
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan. Department of Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Takeshi Chiyomaru
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Takashi Kinoshita
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yukio Naya
- Department of Urology, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Tomohiko Ichikawa
- Department of Urology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba, Japan
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84
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Zhuo B, Li Y, Li Z, Qin H, Sun Q, Zhang F, Shen Y, Shi Y, Wang R. PI3K/Akt signaling mediated Hexokinase-2 expression inhibits cell apoptosis and promotes tumor growth in pediatric osteosarcoma. Biochem Biophys Res Commun 2015; 464:401-6. [PMID: 26116768 DOI: 10.1016/j.bbrc.2015.06.092] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 06/12/2015] [Indexed: 11/18/2022]
Abstract
Accumulating evidence has shown that PI3K/Akt pathway is frequently hyperactivated in osteosarcoma (OS) and contributes to tumor initiation and progression. Altered phenotype of glucose metabolism is a key hallmark of cancer cells including OS. However, the relationship between PI3K/Akt pathway and glucose metabolism in OS remains largely unexplored. In this study, we showed that elevated Hexokinase-2 (HK2) expression, which catalyzes the first essential step of glucose metabolism by conversion of glucose into glucose-6-phosphate, was induced by activated PI3K/Akt signaling. Immunohistochemical analysis showed that HK2 was overexpressed in 83.3% (25/30) specimens detected and was closely correlated with Ki67, a cell proliferation index. Silencing of endogenous HK2 resulted in decreased aerobic glycolysis as demonstrated by reduced glucose consumption and lactate production. Inhibition of PI3K/Akt signaling also suppressed aerobic glycolysis and this effect can be reversed by reintroduction of HK2. Furthermore, knockdown of HK2 led to increased cell apoptosis and reduced ability of colony formation; meanwhile, these effects were blocked by 2-Deoxy-d-glucose (2-DG), a glycolysis inhibitor through its actions on hexokinase, indicating that HK2 functions in cell apoptosis and growth were mediated by altered aerobic glycolysis. Taken together, our study reveals a novel relationship between PI3K/Akt signaling and aerobic glycolysis and indicates that PI3K/Akt/HK2 might be potential therapeutic approaches for OS.
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Affiliation(s)
- Baobiao Zhuo
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Yuan Li
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Zhengwei Li
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Haihui Qin
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Qingzeng Sun
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Fengfei Zhang
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Yang Shen
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Yingchun Shi
- Department of Surgery, The Children's Hospital of Xuzhou, Xuzhou, Jiangsu Province 221006, PR China
| | - Rong Wang
- Department of Ultrasonography, Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu Province 221006, PR China.
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Matsushita R, Seki N, Chiyomaru T, Inoguchi S, Ishihara T, Goto Y, Nishikawa R, Mataki H, Tatarano S, Itesako T, Nakagawa M, Enokida H. Tumour-suppressive microRNA-144-5p directly targets CCNE1/2 as potential prognostic markers in bladder cancer. Br J Cancer 2015; 113:282-9. [PMID: 26057453 PMCID: PMC4506384 DOI: 10.1038/bjc.2015.195] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 03/30/2015] [Accepted: 05/06/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Analysis of a microRNA (miRNA) expression signature of bladder cancer (BC) by deep-sequencing revealed that clustered miRNAs microRNA (miR)-451a, miR-144-3p, and miR-144-5p were significantly downregulated in BC tissues. We hypothesised that these miRNAs function as tumour suppressors in BC. The aim of this study was to investigate the functional roles of these miRNAs and their modulation of cancer networks in BC cells. METHODS The functional studies of BC cells were performed using transfection of mature miRNAs. Genome-wide gene expression analysis, in silico analysis, and dual-luciferase reporter assays were applied to identify miRNA targets. The association between miR-144-5p levels and expression of the target genes was determined, and overall patient survival as a function of target gene expression was estimated by the Kaplan-Meier method. RESULTS Gain-of-function studies showed that miR-144-5p significantly inhibited cell proliferation by BC cells. Four cell cycle-related genes (CCNE1, CCNE2, CDC25A, and PKMYT1) were identified as direct targets of miR-144-5p. The patients with high CCNE1 or CCNE2 expression had lower overall survival probabilities than those with low expression (P=0.025 and P=0.032). CONCLUSION miR-144-5p functions as tumour suppressor in BC cells. CCNE1 and CCNE2 were directly regulated by miR-144-5p and might be good prognostic markers for survival of BC patients.
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Affiliation(s)
- R Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - N Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - T Chiyomaru
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - S Inoguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - T Ishihara
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - Y Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - R Nishikawa
- Department of Functional Genomics, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - H Mataki
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - S Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - T Itesako
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - M Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | - H Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
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86
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Tang K, Xu H. Prognostic value of meta-signature miRNAs in renal cell carcinoma: an integrated miRNA expression profiling analysis. Sci Rep 2015; 5:10272. [PMID: 25974855 PMCID: PMC4431463 DOI: 10.1038/srep10272] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/07/2015] [Indexed: 12/29/2022] Open
Abstract
To identify a robust panel of microRNA (miRNA) signatures that can distinguish renal cell carcinoma (RCC) from normal kidney using miRNA expression levels. We performed a comprehensive meta-analysis of 29 published studies that compared the miRNA expression profiles of RCC tissues and adjacent normal tissues (NT) to determine candidate miRNAs as prognostic biomarkers for RCC. Using vote-counting strategy and robust rank aggregation method, we identified a statistically significant miRNA meta-signature of two upregulated (miR-21, miR-210) and three downregulated (miR-141, miR-200c and miR-429) miRNAs. X-tile plot was used to generate the optimum cut-off point for the 15 different deregulated miRNAs and Kaplan-Meier method was used to calculate CSS. In a cohort of 45 patients, the high expression of miR-21 (HR: 5.46, 95%CI: 2.02-53.39) and miR-210 (HR: 6.85, 95%CI: 2.13-43.36), the low expression of miR-141 (HR: 0.16, 95%CI: 0.004-0.18), miR-200c (HR: 0.08, 95%CI: 0.01-0.43) and miR-429 (HR: 0.18, 95%CI: 0.02-0.50) were associated with poor cancer-specific survival (CSS) following RCC resection. We also constructed a five-miRNAs-based classifier as a reliable prognostic and predictive tool for CSS in patients with RCC, especially in clear cell RCC (ccRCC) (HR: 5.46, 95% CI: 1.51-19.66). This method might facilitate patient counselling and individualise management of RCC.
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Affiliation(s)
- Kun Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hua Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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87
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Huang X, Liu M, Sun H, Wang F, Xie X, Chen X, Su J, He Y, Dai Y, Wu H, Shen L. HK2 is a radiation resistant and independent negative prognostic factor for patients with locally advanced cervical squamous cell carcinoma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:4054-4063. [PMID: 26097593 PMCID: PMC4466980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/26/2015] [Indexed: 06/04/2023]
Abstract
The mechanism by which overexpression of hexokinase 2 (HK2) indicates locally advanced cervical squamous cell carcinoma (LACSCC) with radio-resistance is still unknown despite being an independent biomarker of poor prognosis. Here, we retrospectively analyzed 132 female patients receiving radiotherapy for cervical squamous cell carcinoma including 85 radiation-sensitive cases and 47 radiation-resistant cases. The expression of HK2 was examined by immunohistochemistry. The percentage of high HK2 expression in the radiation-resistant group differed from the radiation-sensitive group with statistical significance (P < 0.001) even if divided into three subgroups including a lower 5-year progression free survival group (PFS) for comparison (P < 0.001). The Kaplan Meier curve analysis showed that there were differences between the two groups (P < 0.001). Therefore, this study proves a close relationship between HK2 expression and radio-resistance. Multivariate Cox regression analysis implied that HK2 was an independent prognostic indicator of cervical squamous carcinoma (HR (95% CI), 2.940 (1.609, 1.609); P = 0.002).
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Affiliation(s)
- Xinqiong Huang
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Miaomiao Liu
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Hong Sun
- Department of Otorhinolaryngology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Fengjun Wang
- Department of Otorhinolaryngology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Xiaoxue Xie
- Department of Radiation Oncology, Hunan Provincial Tumal Hospital & Affiliated Tumor Hospital of Xiangya Medical School, Central South UniversityHunan Province, P.R. China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Juan Su
- Department of Dermatology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Yuxiang He
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Youyi Dai
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Haijun Wu
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
| | - Liangfang Shen
- Department of Oncology, Xiangya Hospital, Central South UniversityHunan Province, P.R. China
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88
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LI DONG, YANG ZHENGKAI, BU JINGYI, XU CHUNYAN, SUN HUI, TANG JIEBING, LIN PING, CHENG WEN, HUANG NING, CUI RONGJUN, YU XIAOGUANG, ZHENG XIULAN. OCT4B modulates OCT4A expression as ceRNA in tumor cells. Oncol Rep 2015; 33:2622-30. [DOI: 10.3892/or.2015.3862] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 02/24/2015] [Indexed: 11/05/2022] Open
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89
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Su Z, Ni L, Yu W, Yu Z, Chen D, Zhang E, Li Y, Wang Y, Li X, Yang S, Gui Y, Lai Y, Ye J. MicroRNA-451a is associated with cell proliferation, migration and apoptosis in renal cell carcinoma. Mol Med Rep 2015; 11:2248-54. [PMID: 25405789 DOI: 10.3892/mmr.2014.2957] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Accepted: 08/05/2014] [Indexed: 02/05/2023] Open
Abstract
MicroRNAs (miRNAs) are an important class of small, non‑coding RNA molecules that regulate gene expression at the transcriptional or post‑transcriptional level. They are involved in apoptosis, proliferation and migration and are known to have an important role in many types of cancer. Aberrant expression of miRNA‑451a (miR‑451a) has previously been reported in tumors, however its role in renal cell carcinoma (RCC) is currently unknown. The aim of the present study was to investigate the role of miR‑451a in RCC. The expression of miR‑451a was analyzed in 50 paired RCC and normal tissues by quantitative polymerase chain reaction. Furthermore, the effects of miR‑451a on cell migration, proliferation and apoptosis were evaluated, using migration scratch, MTT and flow cytometric assays. The present study demonstrated that miR‑451a was upregulated in RCC, as compared with paired normal tissues (P<0.05). Downregulation of miR‑451a using a synthesized inhibitor, significantly suppressed cell migration and proliferation, and induced apoptosis of renal cancer cells in vitro, as compared with a negative control (P<0.05). In the present study, it was determined that miR‑451a may have an important role as a tumor enhancer in RCC. These results imply that miR‑451a may be a promising therapeutic target for the treatment of RCC.
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Affiliation(s)
- Zhengming Su
- Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Liangchao Ni
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Wenshui Yu
- Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Zuhu Yu
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Duqun Chen
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Enpu Zhang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yifan Li
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yadong Wang
- Department of Urology, Zunyi Medical College Fifth Affiliated Hospital, Zhuhai, Guangdong 519100, P.R. China
| | - Xianxin Li
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Shangqi Yang
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yaoting Gui
- Department of Urology, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yongqing Lai
- Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Jiongxian Ye
- Department of Urology, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
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90
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Li M, Wang Y, Song Y, Bu R, Yin B, Fei X, Guo Q, Wu B. MicroRNAs in renal cell carcinoma: a systematic review of clinical implications (Review). Oncol Rep 2015; 33:1571-8. [PMID: 25682771 PMCID: PMC4358077 DOI: 10.3892/or.2015.3799] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 12/18/2014] [Indexed: 01/13/2023] Open
Abstract
Despite recent advances in the understanding of the biology of renal cell carcinoma (RCC), successful surgical treatment and implementation of novel-targeted therapies, the prognosis for RCC patients remains poor. Late presentation, tumor heterogeneity and in particular the lack of molecular biomarkers for early detection, classification and the surveillance of RCC treatments are major obstacles. The increasing knowledge regarding the functional role of microRNAs (miRNAs) in pathophysiological processes may provide an important link to the identification of suitable therapeutic targets and diagnostic/prognostic biomarkers for RCC. The aim of this review was to provide new insight into the function of miRNAs in the pathogenesis of RCC and to emphasize their potential as diagnostic and prognostic markers, as well as therapeutic targets.
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Affiliation(s)
- Ming Li
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Ying Wang
- Department of Nuclear Medicine, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yongsheng Song
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Renge Bu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Bo Yin
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xiang Fei
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Qizhen Guo
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Bin Wu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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91
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Goto Y, Kurozumi A, Enokida H, Ichikawa T, Seki N. Functional significance of aberrantly expressed microRNAs in prostate cancer. Int J Urol 2015; 22:242-52. [DOI: 10.1111/iju.12700] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 11/20/2014] [Accepted: 11/30/2014] [Indexed: 12/18/2022]
Affiliation(s)
- Yusuke Goto
- Departments of Functional Genomics; Chiba University Graduate School of Medicine; Chiba Japan
- Department of Urology; Chiba University Graduate School of Medicine; Chiba Japan
| | - Akira Kurozumi
- Departments of Functional Genomics; Chiba University Graduate School of Medicine; Chiba Japan
- Department of Urology; Chiba University Graduate School of Medicine; Chiba Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences; Kagoshima University; Kagoshima Japan
| | - Tomohiko Ichikawa
- Department of Urology; Chiba University Graduate School of Medicine; Chiba Japan
| | - Naohiko Seki
- Departments of Functional Genomics; Chiba University Graduate School of Medicine; Chiba Japan
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92
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Nilsson H, Lindgren D, Mandahl Forsberg A, Mulder H, Axelson H, Johansson ME. Primary clear cell renal carcinoma cells display minimal mitochondrial respiratory capacity resulting in pronounced sensitivity to glycolytic inhibition by 3-Bromopyruvate. Cell Death Dis 2015; 6:e1585. [PMID: 25569102 PMCID: PMC4669744 DOI: 10.1038/cddis.2014.545] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/13/2014] [Accepted: 11/17/2014] [Indexed: 01/11/2023]
Abstract
Changes of cellular metabolism are an integral property of the malignant potential of most cancer cells. Already in the 1930s, Otto Warburg observed that tumor cells preferably utilize glycolysis and lactate fermentation for energy production, rather than the mitochondrial oxidative phosphorylation dominating in normal cells, a phenomenon today known as the Warburg effect. Even though many tumor types display a high degree of aerobic glycolysis, they still retain the activity of other energy-producing metabolic pathways. One exception seems to be the clear cell variant of renal cell carcinoma, ccRCC, where the activity of most other pathways than that of glycolysis has been shown to be reduced. This makes ccRCC a promising candidate for the use of glycolytic inhibitors in treatment of the disease. However, few studies have so far addressed this issue. In this report, we show a strikingly reduced mitochondrial respiratory capacity of primary human ccRCC cells, resulting in enhanced sensitivity to glycolytic inhibition by 3-Bromopyruvate (3BrPA). This effect was largely absent in established ccRCC cell lines, a finding that highlights the importance of using biologically relevant models in the search for new candidate cancer therapies. 3BrPA markedly reduced ATP production in primary ccRCC cells, followed by cell death. Our data suggest that glycolytic inhibitors such as 3BrPA, that has been shown to be well tolerated in vivo, should be further analyzed for the possible development of selective treatment strategies for patients with ccRCC.
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Affiliation(s)
- H Nilsson
- Department of Laboratory Medicine Malmö, Center for Molecular Pathology, Lund University, Skåne University Hospital, Malmö, Sweden
| | - D Lindgren
- Department of Laboratory Medicine Lund, Division of Translational Cancer Research, Lund University, Lund, Sweden
| | - A Mandahl Forsberg
- Department of Urology, Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - H Mulder
- Department of Clinical Sciences, Unit of Molecular Metabolism, Lund University Diabetes Centre, Malmö, Sweden
| | - H Axelson
- Department of Laboratory Medicine Lund, Division of Translational Cancer Research, Lund University, Lund, Sweden
| | - M E Johansson
- Department of Laboratory Medicine Malmö, Center for Molecular Pathology, Lund University, Skåne University Hospital, Malmö, Sweden
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93
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Chan WC, Lin WC. MetaMirClust: Discovery and Exploration of Evolutionarily Conserved miRNA Clusters. Methods Mol Biol 2015; 1375:75-89. [PMID: 25861770 DOI: 10.1007/7651_2015_237] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recent emerging studies suggest that a substantial fraction of microRNA (miRNA) genes is likely to form clusters in terms of evolutionary conservation and biological implications, posing a significant challenge for the research community and shifting the bottleneck of scientific discovery from miRNA singletons to miRNA clusters. In addition, the advance in molecular sequencing technique such as next-generation sequencing (NGS) has facilitated researchers to comprehensively characterize miRNAs with low abundance on genome-wide scale in multiple species. Taken together, a large scale, cross-species survey of grouped miRNAs based on genomic location would be valuable for investigating their biological functions and regulations in an evolutionary perspective. In the present chapter, we describe the application of effective and efficient bioinformatics tools on the identification of clustered miRNAs and illustrate how to use the recently developed Web-based database, MetaMirClust (http://fgfr.ibms.sinic.aedu.tw/MetaMirClust) to discover evolutionarily conserved pattern of miRNA clusters across metazoans.
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Affiliation(s)
- Wen-Ching Chan
- Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan, Republic of China. .,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan, Republic of China. .,Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China.
| | - Wen-chang Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan, Republic of China.
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94
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Tian S, Su X, Qi L, Jin XH, Hu Y, Wang CL, Ma X, Xia HF. MiR-143 and rat embryo implantation. Biochim Biophys Acta Gen Subj 2014; 1850:708-21. [PMID: 25486623 DOI: 10.1016/j.bbagen.2014.11.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 11/26/2014] [Accepted: 11/29/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND To study the role of miR-143 during embryo implantation in rat. METHODS MiR-143 expression in rat early pregnancy was detected by Northern blot. The relation between miR-143 and Lifr predicted and confirmed by bioinformatics method, dual-luciferase activity assay, Western blot and immunohistochemistry. The role of miR-143 was detected by MTS, Edu and ranswell chamber assays. RESULTS The expression level of miR-143 on gestation day 5-8 (g.d. 5-8) was higher than on g.d. 3-4 in uteri of pregnant rat. MiR-143 was mainly localized in the superficial stroma/primary decidual zone, luminal and glandular epithelia. The expression of miR-143 was not significantly influenced by pseudopregnancy, but the activation of delayed implantation and experimentally induced decidualization significantly promoted miR-143 expression. Over-expression of miR-143 in human endometrial stromal cells (ESCs) inhibited cell proliferation, migration and invasion. Knockdown of miR-143 promoted cell proliferation and invasion. The results of recombinant luciferase reporters showed that miR-143 could bind to the 3¢-untranslated region (UTR) of leukemia inhibitory factor receptor (Lifr) to inhibit Lifr translation. CONCLUSIONS Uterine miR-143 may be involved in the successful pregnancy, especially during the process of blastocyst implantation through regulating Lifr. GENERAL SIGNIFICANCE This study may have the potential to provide new insights into the understanding of miR-143 function during embryo implantation.
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Affiliation(s)
- Shi Tian
- Haidian Maternal & Child Health Hospital, Beijing 100080, China
| | - Xing Su
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China
| | - Lu Qi
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China
| | - Xiao-Hua Jin
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China
| | - Yi Hu
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China
| | - Chun-Ling Wang
- Cadre Ward, China Mei-Tan General Hospital, Beijing 100028, China.
| | - Xu Ma
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China.
| | - Hong-Fei Xia
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing 100081, China; Graduate School, Peking Union Medical College, Beijing 100730, China.
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95
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Medrano S, Sequeira-Lopez MLS, Gomez RA. Deletion of the miR-143/145 cluster leads to hydronephrosis in mice. THE AMERICAN JOURNAL OF PATHOLOGY 2014; 184:3226-38. [PMID: 25307343 PMCID: PMC4258506 DOI: 10.1016/j.ajpath.2014.08.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/12/2014] [Accepted: 08/19/2014] [Indexed: 11/21/2022]
Abstract
Obstructive nephropathy, the leading cause of kidney failure in children, can be anatomic or functional. The underlying causes of functional hydronephrosis are not well understood. miRNAs, which are small noncoding RNAs, regulate gene expression at the post-transcriptional level. We found that miR-145-5p, a member of the miR-143/145 cluster that is highly expressed in smooth muscle cells of the renal vasculature, was present in the pelvicalyceal system and the ureter. To evaluate whether the miR-143/145 cluster is involved in urinary tract function we performed morphologic, functional, and gene expression studies in mice carrying a whole-body deletion of miR-143/145. miR-143/145-deficient mice developed hydronephrosis, characterized by severe papillary atrophy and dilatation of the pelvicalyceal system without obvious physical obstruction. Moreover, mutant mice showed abnormal ureteral peristalsis. The number of ureter contractions was significantly higher in miR-143/145-deficient mice. Peristalsis was replaced by incomplete, short, and more frequent contractions that failed to completely propagate in a proximal-distal direction. Microarray analysis showed 108 differentially expressed genes in ureters of miR-143/145-deficient mice. Ninety genes were up-regulated and 18 genes were down-regulated, including genes with potential regulatory roles in smooth muscle contraction and extracellular matrix-receptor interaction. We show that miR-143/145 are important for the normal peristalsis of the ureter and report an association between the expression of these miRNAs and hydronephrosis.
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Affiliation(s)
- Silvia Medrano
- Department of Pediatrics, School of Medicine, University of Virginia, Charlottesville, Virginia
| | | | - R Ariel Gomez
- Department of Pediatrics, School of Medicine, University of Virginia, Charlottesville, Virginia.
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96
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Chiyomaru T, Seki N, Inoguchi S, Ishihara T, Mataki H, Matsushita R, Goto Y, Nishikawa R, Tatarano S, Itesako T, Nakagawa M, Enokida H. Dual regulation of receptor tyrosine kinase genes EGFR and c-Met by the tumor-suppressive microRNA-23b/27b cluster in bladder cancer. Int J Oncol 2014; 46:487-96. [PMID: 25405368 PMCID: PMC4277244 DOI: 10.3892/ijo.2014.2752] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Accepted: 09/19/2014] [Indexed: 01/01/2023] Open
Abstract
Recent clinical trials of chemotherapeutics for advanced bladder cancer (BC) have shown limited benefits. Therefore, new prognostic markers and more effective treatment strategies are required. One approach to achieve these goals is through the analysis of RNA networks. Our recent studies of microRNA (miRNA) expression signatures revealed that the microRNA-23b/27b (miR-23b/27b) cluster is frequently downregulated in various types of human cancers. However, the functional role of the miR-23b/27b cluster in BC cells is still unknown. Thus, the aim of the present study was to investigate the functional significance of the miR-23b/27b cluster and its regulated molecular targets, with an emphasis on its contributions to BC oncogenesis and metastasis. The expression levels of the miR-23b/27b cluster were significantly reduced in BC clinical specimens. Restoration of mature miR-23b or miR-27b miRNAs significantly inhibited cancer cell migration and invasion, suggesting that these clustered miRNAs function as tumor suppressors. Gene expression data and in silico analysis demonstrated that the genes coding for the epidermal growth factor receptor (EGFR) and hepatocyte growth factor receptor (c-Met) were potential targets of the miR-23b/27b cluster. Luciferase reporter assays and western blotting demonstrated that EGFR and c-Met receptor trypsine kinases were directly regulated by these clustered miRNAs. We conclude that the decreased expression of the tumor-suppressive miR-23b/27b cluster enhanced cancer cell proliferation, migration and invasion in BC through direct regulation of EGFR and c-Met signaling pathways. Our data on RNA networks regulated by tumor-suppressive miR-23b/27b provide new insights into the potential mechanisms of BC oncogenesis and metastasis.
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Affiliation(s)
- Takeshi Chiyomaru
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Naohiko Seki
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Satoru Inoguchi
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Tomoaki Ishihara
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Hiroko Mataki
- Department of Pulmonary Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Ryosuke Matsushita
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Yusuke Goto
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Rika Nishikawa
- Department of Functional Genomics, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Shuichi Tatarano
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Toshihiko Itesako
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Masayuki Nakagawa
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
| | - Hideki Enokida
- Department of Urology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan
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97
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Esguerra JLS, Mollet IG, Salunkhe VA, Wendt A, Eliasson L. Regulation of Pancreatic Beta Cell Stimulus-Secretion Coupling by microRNAs. Genes (Basel) 2014; 5:1018-31. [PMID: 25383562 PMCID: PMC4276924 DOI: 10.3390/genes5041018] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/01/2014] [Accepted: 10/21/2014] [Indexed: 12/31/2022] Open
Abstract
Increased blood glucose after a meal is countered by the subsequent increased release of the hypoglycemic hormone insulin from the pancreatic beta cells. The cascade of molecular events encompassing the initial sensing and transport of glucose into the beta cell, culminating with the exocytosis of the insulin large dense core granules (LDCVs) is termed "stimulus-secretion coupling." Impairment in any of the relevant processes leads to insufficient insulin release, which contributes to the development of type 2 diabetes (T2D). The fate of the beta cell, when exposed to environmental triggers of the disease, is determined by the possibility to adapt to the new situation by regulation of gene expression. As established factors of post-transcriptional regulation, microRNAs (miRNAs) are well-recognized mediators of beta cell plasticity and adaptation. Here, we put focus on the importance of comprehending the transcriptional regulation of miRNAs, and how miRNAs are implicated in stimulus-secretion coupling, specifically those influencing the late stages of insulin secretion. We suggest that efficient beta cell adaptation requires an optimal balance between transcriptional regulation of miRNAs themselves, and miRNA-dependent gene regulation. The increased knowledge of the beta cell transcriptional network inclusive of non-coding RNAs such as miRNAs is essential in identifying novel targets for the treatment of T2D.
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Affiliation(s)
- Jonathan L S Esguerra
- Unit of Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, CRC 91-11, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
| | - Inês G Mollet
- Unit of Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, CRC 91-11, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
| | - Vishal A Salunkhe
- Unit of Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, CRC 91-11, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
| | - Anna Wendt
- Unit of Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, CRC 91-11, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
| | - Lena Eliasson
- Unit of Islet Cell Exocytosis, Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, CRC 91-11, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
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98
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Roberts DJ, Miyamoto S. Hexokinase II integrates energy metabolism and cellular protection: Akting on mitochondria and TORCing to autophagy. Cell Death Differ 2014; 22:248-57. [PMID: 25323588 DOI: 10.1038/cdd.2014.173] [Citation(s) in RCA: 281] [Impact Index Per Article: 28.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/11/2014] [Accepted: 09/15/2014] [Indexed: 01/08/2023] Open
Abstract
Accumulating evidence reveals that metabolic and cell survival pathways are closely related, sharing common signaling molecules. Hexokinase catalyzes the phosphorylation of glucose, the rate-limiting first step of glycolysis. Hexokinase II (HK-II) is a predominant isoform in insulin-sensitive tissues such as heart, skeletal muscle, and adipose tissues. It is also upregulated in many types of tumors associated with enhanced aerobic glycolysis in tumor cells, the Warburg effect. In addition to the fundamental role in glycolysis, HK-II is increasingly recognized as a component of a survival signaling nexus. This review summarizes recent advances in understanding the protective role of HK-II, controlling cellular growth, preventing mitochondrial death pathway and enhancing autophagy, with a particular focus on the interaction between HK-II and Akt/mTOR pathway to integrate metabolic status with the control of cell survival.
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Affiliation(s)
- D J Roberts
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, USA
| | - S Miyamoto
- Department of Pharmacology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, USA
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99
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Wei J, Ma Z, Li Y, Zhao B, Wang D, Jin Y, Jin Y. miR-143 inhibits cell proliferation by targeting autophagy-related 2B in non-small cell lung cancer H1299 cells. Mol Med Rep 2014; 11:571-6. [PMID: 25322940 DOI: 10.3892/mmr.2014.2675] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 08/06/2014] [Indexed: 11/05/2022] Open
Abstract
microRNAs (miRNAs) are small, non‑coding RNAs involved in multiple biological pathways by regulating post-transcriptional gene expression. Previously, autophagy has been reported to suppress the progression of non-small cell lung cancer (NSCLC). However, how miRNAs regulate autophagy in NSCLC remains to be elucidated. In the present study, the autophagy gene, autophagy-related 2B (ATG2B), was identified as a novel target of miR-143. The overexpression of miR-143 was able to downregulate the expression of atg2b at the transcriptional and translational levels by direct binding to its 3' untranslated region. Cell proliferation was significantly inhibited by the ectopic expression of miR-143 in H1299 cells. Knockdown of ATG2B resulted in a similar phenotype, with the overexpression of miR-143 in NSCLC cells. Furthermore, knockdown of ATG2B and hexokinase 2, a key enzyme in glycolysis and another target of miR-143, co-ordinated to inhibit the proliferation of H1299 cells. The results of the present study demonstrated that miR-143 was a novel and important regulator of autophagy by targeting ATG2B and repression of gene expression in autophagy and high glycolysis had a coordinate effect in H1299 cells. These results suggested that ATG2B may be a new potential therapeutic target for NSCLC. Furthermore, it was implied that interrupting autophagy and glycolysis improves NSCLC therapy.
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Affiliation(s)
- Jiali Wei
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Zhongliang Ma
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Yanli Li
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Botao Zhao
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Detao Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
| | - Yan Jin
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, P.R. China
| | - Youxin Jin
- School of Life Sciences, Shanghai University, Shanghai 200444, P.R. China
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100
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Yogev O, Lagos D, Enver T, Boshoff C. Kaposi's sarcoma herpesvirus microRNAs induce metabolic transformation of infected cells. PLoS Pathog 2014; 10:e1004400. [PMID: 25255370 PMCID: PMC4177984 DOI: 10.1371/journal.ppat.1004400] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 08/14/2014] [Indexed: 02/01/2023] Open
Abstract
Altered cell metabolism is inherently connected with pathological conditions including cancer and viral infections. Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiological agent of Kaposi's sarcoma (KS). KS tumour cells display features of lymphatic endothelial differentiation and in their vast majority are latently infected with KSHV, while a small number are lytically infected, producing virions. Latently infected cells express only a subset of viral genes, mainly located within the latency-associated region, among them 12 microRNAs. Notably, the metabolic properties of KSHV-infected cells closely resemble the metabolic hallmarks of cancer cells. However, how and why KSHV alters host cell metabolism remains poorly understood. Here, we investigated the effect of KSHV infection on the metabolic profile of primary dermal microvascular lymphatic endothelial cells (LEC) and the functional relevance of this effect. We found that the KSHV microRNAs within the oncogenic cluster collaborate to decrease mitochondria biogenesis and to induce aerobic glycolysis in infected cells. KSHV microRNAs expression decreases oxygen consumption, increase lactate secretion and glucose uptake, stabilize HIF1α and decreases mitochondria copy number. Importantly this metabolic shift is important for latency maintenance and provides a growth advantage. Mechanistically we show that KSHV alters host cell energy metabolism through microRNA-mediated down regulation of EGLN2 and HSPA9. Our data suggest that the KSHV microRNAs induce a metabolic transformation by concurrent regulation of two independent pathways; transcriptional reprograming via HIF1 activation and reduction of mitochondria biogenesis through down regulation of the mitochondrial import machinery. These findings implicate viral microRNAs in the regulation of the cellular metabolism and highlight new potential avenues to inhibit viral latency. Kaposi's sarcoma (KS) is the most common cancer in HIV-infected untreated individuals. Kaposi's sarcoma-associated herpesvirus (KSHV) is the infectious cause of this neoplasm. The discovery of KSHV and its oncogenic enigmas has enlightened many fields of tumor biology and viral oncogenesis. The metabolic properties of KS significantly differ from those of normal cells and resemble cancer cells in general, but the mechanisms employed by KSHV to alter host cell metabolism are poorly understood. Our work demonstrates that KSHV microRNAs can alter cell metabolism through coherent control of independent pathways, a key feature of microRNA-mediated control of cellular functions. This provides a fresh perspective for how microRNA-encoding pathogens shape a cell's metabolism to create an optimal environment for their survival and/or replication. Indeed, we show that, in the case of KSHV, viral microRNA-driven regulation of metabolism is important for viral latency. These findings will evoke new and exciting approaches to prevent KSHV from establishing latency and later on KS.
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MESH Headings
- Aerobiosis
- Blotting, Western
- Bone Neoplasms/metabolism
- Bone Neoplasms/pathology
- Bone Neoplasms/virology
- Cell Proliferation
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Endothelial Cells/virology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Endothelium, Vascular/virology
- Energy Metabolism
- Gene Expression Regulation, Viral
- Glucose/metabolism
- Herpesvirus 8, Human/physiology
- Humans
- Lactic Acid/metabolism
- MicroRNAs/genetics
- Mitochondria/metabolism
- Mitochondria/pathology
- Mitochondria/virology
- Osteosarcoma/metabolism
- Osteosarcoma/pathology
- Osteosarcoma/virology
- Oxygen Consumption
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- Sarcoma, Kaposi/metabolism
- Sarcoma, Kaposi/pathology
- Sarcoma, Kaposi/virology
- Tumor Cells, Cultured
- Virion/metabolism
- Virus Latency
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Affiliation(s)
- Ohad Yogev
- UCL Cancer Institute, Research Department of Cancer Biology, University College London, London, United Kingdom
- * E-mail:
| | - Dimitris Lagos
- Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom
| | - Tariq Enver
- UCL Cancer Institute, Research Department of Cancer Biology, University College London, London, United Kingdom
| | - Chris Boshoff
- UCL Cancer Institute, Research Department of Cancer Biology, University College London, London, United Kingdom
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