151
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Fang M, Huang W, Wu X, Gao Y, Ou J, Zhang X, Li Y. MiR-141-3p Suppresses Tumor Growth and Metastasis in Papillary Thyroid Cancer via Targeting Yin Yang 1. Anat Rec (Hoboken) 2018; 302:258-268. [PMID: 30290400 DOI: 10.1002/ar.23940] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 12/17/2017] [Accepted: 02/02/2018] [Indexed: 12/24/2022]
Abstract
MicroR-141-3p has been found to be downregulated in papillary thyroid carcinoma (PTC), while little is known about the cellular functions and precise signals elicited by miR-141-3p in PTC. The results of this study indicated that the expression of miR-141-3p was aberrantly down-regulated in PTC tissues and cell lines, compared with the adjacent normal tissues and normal thyroid epithelial cells. Furthermore, the miR-141-3p expression level was negatively associated with TNM stage and lymph node metastasis in PTC. Expression of miR-141-3p effectively inhibited cell growth, promoted apoptosis, and suppressed invasion in PTC cells. Meanwhile, miR-141-3p knockdown with miR-141-3p inhibitor reversed these effects. Consistent with the in vitro study, miR-141-3p also exhibited anti-neoplastic activity in vivo. Moreover, the results revealed that miR-141-3p directly recognized the 3' untranslated region (3'UTR) of Yin Yang 1 (YY1) and negatively regulated the expression of YY1 at both protein and mRNA levels. Ectopic expression of YY1 could effectively abrogate the anti-metastatic and proapoptotic effects of miR-141-3p. In summary, the findings suggested that miR-141-3p can act as a tumor suppressor in PTC and may be a potential therapeutic target for PTC treatment. Anat Rec, 302:258-268, 2019. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Ming Fang
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Wenlong Huang
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Xinchi Wu
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Yuan Gao
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Jing Ou
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Xiaolan Zhang
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
| | - Yanyun Li
- Department of Endocrinology, The Affiliated Jiangyin People's Hospital, School of Medicine, Southeast University, Jiangyin, 214400, China
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152
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Ekmekci CG, Coskunpinar E, Avci H, Farooqi AA, Orhan KS, Akbas F. Integrative analysis of mRNA and microRNA expression profiles in laryngeal squamous cell carcinoma. J Cell Biochem 2018; 120:3415-3422. [PMID: 30362598 DOI: 10.1002/jcb.27612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 08/09/2018] [Indexed: 12/12/2022]
Abstract
Larynx cancer is a therapeutically challenging disease. Rapidly evolving experimentally validated data have significantly improved our understanding of the complex role of numerous RNA, DNA, and proteins that play a role in the development and progression of cancer. Based on the insights from approximately two decades of research, it seems clear that microRNAs (miRNAs) have revolutionized our concepts related to the main role of noncoding RNAs in different cancers' progression, development, and metastasis. Mechanistically, miRNAs have been reported to regulate different RNAs and finally protein-coding genes. The expression profiling of miRNAs and messenger RNA (mRNAs) was conducted for a deeper analysis of the miRNAs and mRNAs which play an essential role in larynx cancer. Downregulation or upregulation over twofolds in the miRNAs was considered to be significant, and that of sixfolds or below was considered to be significant for the mRNAs. In accordance with this approach, the expression levels of 43 miRNAs were increased in this study, whereas the expression levels of 129 were decreased. Accordingly, all the genomic expression studies provided evidence of upregulation of 97 genes, whereas 128 genes were found to be downregulated. Among these miRNAs, hsa-miR-20a-3p and hsa-miR-1972 were noted to be important in the etiology of larynx cancer.
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Affiliation(s)
| | - Ender Coskunpinar
- Department of Medical Biology, Faculty of Medicine, University of Health Sciences, Istanbul, Turkey
| | - Hakan Avci
- Department of Otolaryngology and Head and Neck Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ammad Ahmad Farooqi
- Laboratory for Translational Oncology and Personalized Medicine, Rashid Latif Medical College, Lahore, Pakistan
| | - Kadir Serkan Orhan
- Department of Otolaryngology and Head and Neck Surgery, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Fahri Akbas
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakıf University, Istanbul, Turkey
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153
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Tang Y, Wu B, Huang S, Peng X, Li X, Huang X, Zhou W, Xie P, He P. Downregulation of miR‑505‑3p predicts poor bone metastasis‑free survival in prostate cancer. Oncol Rep 2018; 41:57-66. [PMID: 30365141 PMCID: PMC6278553 DOI: 10.3892/or.2018.6826] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 09/27/2018] [Indexed: 02/06/2023] Open
Abstract
The principal issue deriving from prostate cancer (PCa) is its propensity to metastasize to bone. To date, bone metastasis remains incurable, and therapeutic strategies are limited. Therefore, it is of paramount importance to explore predictive markers for bone metastasis of PCa. In the present study, we reported that miR-505-3p was significantly downregulated in bone metastatic PCa tissues compared with that in non-bone metastatic PCa tissues, but there was no significant difference in miR-505-3p expression between PCa and adjacent normal tissues. miR-505-3p expression was inversely associated with serum PSA levels, Gleason grade, N and M classification, and short bone metastasis-free survival in PCa patients, but had no effect on overall survival in PCa patients. Furthermore, upregulation of miR-505-3p suppressed the activity of TGF-β signaling by directly targeting downstream effectors of TGF-β signaling, SMAD2 and SMAD3, further inhibiting the invasion and migration abilities of PCa cells. Therefore, our findings unraveled a novel mechanism by which miR-505-3p inhibits bone metastasis of PCa, supporting the notion that miR-505-3p may serve as a predictive marker for bone metastasis of PCa.
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Affiliation(s)
- Yubo Tang
- Department of Pharmacy, The First Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Bowen Wu
- Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Shuai Huang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangzhou 510260, P.R. China
| | - Xinsheng Peng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xing Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xiufang Huang
- Department of Pathology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat‑sen University, Jiangmen, Guangdong 529030, P.R. China
| | - Wei Zhou
- Department of Pathology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat‑sen University, Jiangmen, Guangdong 529030, P.R. China
| | - Peigen Xie
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510000, P.R. China
| | - Peiheng He
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
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154
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He T, McColl K, Sakre N, Chen Y, Wildey G, Dowlati A. Post-transcriptional regulation of PIAS3 expression by miR-18a in malignant mesothelioma. Mol Oncol 2018; 12:2124-2135. [PMID: 30259640 PMCID: PMC6275277 DOI: 10.1002/1878-0261.12386] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/11/2018] [Accepted: 09/17/2018] [Indexed: 12/17/2022] Open
Abstract
Protein inhibitor of activated STAT3 (PIAS3) is an endogenous suppressor of signal transducer and activator of transcription 3 (STAT3) signaling. By directly interacting with phosphorylated STAT3, PIAS3 can block the downstream transcriptional activity of STAT3, which is hyper-activated in various cancers. We previously reported that in malignant mesothelioma (MM), low PIAS3 expression is associated with increased STAT3 activation and correlates with poor patient survival, yet the regulatory mechanism(s) governing PIAS3 expression in MM remain unclear. Here, we demonstrate that PIAS3 protein expression does not correlate with its mRNA level in MM cell lines, indicating that PIAS3 expression is regulated at a post-transcriptional level. Inhibition of proteasomal degradation with MG132 (10 μm) or bortezomib (1 μm), alone and in combination, did not increase PIAS3 protein levels; furthermore, inhibition of protein synthesis by cycloheximide treatment did not decrease PIAS3 levels within 48 h, suggesting that PIAS3 expression is not actively regulated at a post-translational level. To determine whether miRNA (miRs) can translationally regulate PIAS3 expression, we combined miR microarray analysis with bioinformatic screening to identify candidate miRs, in MM cell lines with low PIAS3 expression, followed by luciferase reporter assays to validate miR regulation of the PIAS3 3'UTR. We identified miR-18a as a suppressor of PIAS3 expression that is upregulated in MM cells and whose inhibition can increase PIAS3 expression and suppress STAT3 activity. Moreover, we showed that miR-18a inhibition can decrease MM cell viability and that its expression is negatively correlated with MM patient survival. Taken together, these results suggest that targeting miR-18a may have therapeutic benefit in MM.
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Affiliation(s)
- Tian He
- Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Karen McColl
- Division of Hematology and Oncology, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Nneha Sakre
- Division of Hematology and Oncology, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Yanwen Chen
- Department of Population and Quantitative Health Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Gary Wildey
- Division of Hematology and Oncology, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Afshin Dowlati
- Division of Hematology and Oncology, Case Western Reserve University and University Hospitals Seidman Cancer Center, Cleveland, OH, USA
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155
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Suzuki R, Amatya VJ, Kushitani K, Kai Y, Kambara T, Takeshima Y. miR-182 and miR-183 Promote Cell Proliferation and Invasion by Targeting FOXO1 in Mesothelioma. Front Oncol 2018; 8:446. [PMID: 30406026 PMCID: PMC6204457 DOI: 10.3389/fonc.2018.00446] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 09/24/2018] [Indexed: 12/14/2022] Open
Abstract
Dysregulation of miR-182 and miR-183 has been implicated in the progression of several human cancers. Our previous study showed that miR-182 and miR-183 are upregulated in malignant mesothelioma. However, their biological functions remain unclear. We performed in-situ hybridization to analyze the expression of miR-182 and miR-183 in human tissues. Functional analysis was performed by treatment of two mesothelioma cell lines (ACC-MESO1 and CRL-5915) with miR-182 and miR-183 inhibitors. RT-PCR and western blot analysis were conducted to analyze the expression of FOXO1, a known target of both miR-182 and miR-183. Mesothelioma cells treated with FOXO1 siRNA and miR-182/183 inhibitors were also analyzed by evaluating cell proliferation and invasion, as well as expression of FOXO1 and its downstream targets. We confirmed miR-182 expression in 25/29 cases and miR-183 expression in 29/29 cases of human mesothelioma tissue by in-situ hybridization. Notably, inhibition of miR-182 or miR-183 reduced cell proliferation, invasion, migration, and adhesion abilities of mesothelioma cells. Surprisingly, transfection with both miR-182 and miR-183 inhibitors showed even more effects on cell progression. Furthermore, FOXO1 was identified as a target of miR-182 and miR-183 in mesothelioma cells. Inhibition of miR-182 and miR-183 reduced cell proliferation ability via upregulation of FOXO1 and its downstream targets, namely, p27. Moreover, inhibition of miR-182 and miR-183 reduced the cell invasion properties of mesothelioma cells. Our findings indicated that miR-182 and miR-183 promote mesothelioma cell progression via downregulation of FOXO1 and p27. Targeting the miR-182/183—FOXO1 axis could serve as a novel treatment against malignant mesothelioma.
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Affiliation(s)
- Rui Suzuki
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Vishwa Jeet Amatya
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kei Kushitani
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yuichiro Kai
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Takahiro Kambara
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yukio Takeshima
- Department of Pathology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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156
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Deng YH, Deng ZH, Hao H, Wu XL, Gao H, Tang SH, Tang H. MicroRNA-23a promotes colorectal cancer cell survival by targeting PDK4. Exp Cell Res 2018; 373:171-179. [PMID: 30342991 DOI: 10.1016/j.yexcr.2018.10.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 10/12/2018] [Accepted: 10/15/2018] [Indexed: 12/20/2022]
Abstract
MicroRNA (miR) is important regulators of gene expression, and aberrant miR expression has been linked to oncogenesis; however, little is understood about their contribution to colorectal cancer (CRC). Here, we determined that miR-23a is overexpressed in human colorectal cancer cell lines and tissues compared with that of normal cells. The stable over-expression of miR-23a in CRC cells was sufficient to promote cell proliferation in vitro and in vivo. Further studies showed that miR-23a can directly bind to the 3'untranslated region (3'UTR) of PDK4 mRNA and subsequently repress both the mRNA and protein expressions of PDK4. PDK4 negatively regulate CRC proliferation via suppressing PDH activity. Ectopic expression of PDK4 by transiently transfected with PDK4 vector encoding the entire coding sequence could reverse the effects of miR-23a on CRC proliferation. By this way, miR-23a promotes PDH activation and oxidative phosphorylation to generate sufficient ATP for cell proliferation. Our results illustrated that the up-regulation of miR-23a played an important role in CRC cell proliferation through direct repressing PDK4, suggesting a potential application of miR-23a in prognosis prediction and therapeutic application in CRC.
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Affiliation(s)
- Yi Hui Deng
- Central Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | | | - Hu Hao
- The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
| | - Xian Lin Wu
- Central Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Hui Gao
- Central Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Shao Hui Tang
- Central Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Hui Tang
- Central Laboratory of the First Affiliated Hospital of Jinan University, Guangzhou 510630, China.
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157
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Chen W, Huang Y, Zhang S, Zheng X, Xie S, Mao J, Cai Y, Lu X, Hu L, Shen J, Dong Y, Chai K. MicroRNA-212 suppresses nonsmall lung cancer invasion and migration by regulating ubiquitin-specific protease-9. J Cell Biochem 2018; 120:6482-6489. [PMID: 30335901 DOI: 10.1002/jcb.27939] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/02/2018] [Indexed: 12/17/2022]
Abstract
MicroRNAs (miRNAs) play crucial roles in various biological processes, including migration, proliferation, differentiation, cell cycling, and apoptosis. Epithelial-mesenchymal transition (EMT) has been shown to be related to the capability of migration and invasion in many tumor cells. In this study, we used wound-healing assay and transwell invasion to analysis the capability of migration and invasion in non-small-cell lung carcinoma (NSCLC), respectively. The expression of ubiquitin-specific protease-9-X-linked (USP9X) and miR-212 messenger RNA (mRNA) was determined by quantitative real-time polymerase chain reaction and Western blot analysis was used to determine the E-cadherin and vimentin expression. Our results showed that miR-212 mimic inhibited cell migration and invasion, while miR-212 inhibitor increased cell migration and invasion. There was no significant difference between WP1130 and miR-212 mimic combined with WP1130 groups. Moreover, WP1130 inhibited the capability of the migration and invasion of NSCLC cells. Western blot analysis displayed that miR-212 mimic upregulated E-cadherin expression and downregulated vimentin expression, while miR-212 inhibitor downregulated E-cadherin and upregulated vimentin expression. These data showed that miR-212 regulated NSCLC cell invasion and migration by regulating USP9X expression. Taken together, these findings indicated that miR-212 regulated NSCLC cells migration and invasion through targeting USP9X involved in EMT.
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Affiliation(s)
- Wei Chen
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Yuye Huang
- Department of pharmacy, The Affiliated Cangnan Hospital of Wenzhou Medical University, The People's Hospital of Cangnan, Wenzhou, China
| | - Shufen Zhang
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Xiaoxiao Zheng
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Shangzhi Xie
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Jiayan Mao
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Ying Cai
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Xuemei Lu
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Liqiang Hu
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Jian Shen
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
| | - Ying Dong
- Department of Oncology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Kequn Chai
- Cancer Institute of Integrated Taditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, China
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158
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Down-regulation of HPGD by miR-146b-3p promotes cervical cancer cell proliferation, migration and anchorage-independent growth through activation of STAT3 and AKT pathways. Cell Death Dis 2018; 9:1055. [PMID: 30333561 PMCID: PMC6192999 DOI: 10.1038/s41419-018-1059-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
While the application of early screening and HPV vaccines has reduced the incidence and mortality rates of cervical cancer, it remains the third most common carcinoma and fourth leading cause of cancer-associated death among women worldwide. The precise mechanisms underlying progression of cervical cancer are not fully understood at present. Here, we detected significant down-regulation of 15-hydroxyprostaglandin dehydrogenase (HPGD) in cervical cancer tissues. Overexpression of HPGD inhibited cervical cancer cell proliferation, migration and anchorage-independent growth to a significant extent. To clarify the mechanisms underlying HPGD down-regulation in cervical cancer, miRNA microarray, bioinformatics and luciferase reporter analyses were performed. HPGD was identified as a direct target of miR-146b-3p displaying up-regulation in cervical cancer tissues. Similar to the effects of HPGD overexpression, down-regulation of miR-146b-3p strongly suppressed proliferation, migration and anchorage-independent growth of cervical cancer cells. Furthermore, HPGD negatively regulated activities of STAT3 and AKT that promote cervical cancer cell proliferation. Notably, HPV oncogenes E6 and E7 were determined as potential contributory factors to these alterations. Our results collectively suggest that the HPGD/miR-146b-3p axis plays a significant role in cervical cancer and may serve as a potentially effective therapeutic target.
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159
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Liu X, Abraham JM, Cheng Y, Wang Z, Wang Z, Zhang G, Ashktorab H, Smoot DT, Cole RN, Boronina TN, DeVine LR, Talbot CC, Liu Z, Meltzer SJ. Synthetic Circular RNA Functions as a miR-21 Sponge to Suppress Gastric Carcinoma Cell Proliferation. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 13:312-321. [PMID: 30326427 PMCID: PMC6197335 DOI: 10.1016/j.omtn.2018.09.010] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 12/15/2022]
Abstract
MicroRNA (miR) sponges containing miR binding sequences constitute a potentially powerful molecular therapeutic strategy. Recently, naturally occurring circular RNAs (circRNAs) were shown to function as efficient miR sponges in cancer cells. We hypothesized that synthetic circRNA sponges could achieve therapeutic loss-of-function targeted against specific miRs. Linear RNA molecules containing miR-21 binding sites were transcribed in vitro; after dephosphorylation and phosphorylation, circularization was achieved using 5'-3' end-ligation by T4 RNA ligase 1. circRNA stability was assessed using RNase R and fetal bovine serum. Competitive inhibition of miR-21 activity by a synthetic circRNA sponge was assessed using luciferase reporter, cell proliferation, and cell apoptosis assays in three gastric cancer cell lines. circRNA effects on downstream proteins were also delineated by Tandem Mass Tag (TMT) labeling (data available via ProteomeXchange identifier PRIDE: PXD008584), followed by western blotting. We conclude that artificial circRNA sponges resistant to nuclease digestion can be synthesized using simple enzymatic ligation steps. These sponges inhibit cancer cell proliferation and suppress the activity of miR-21 on downstream protein targets, including the cancer protein DAXX. In summary, synthetic circRNA sponges represent a simple, effective, convenient strategy for achieving targeted loss of miR function in vitro, with potential future therapeutic application in human patients.
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Affiliation(s)
- Xi Liu
- Department of Pathology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an 710061, Shaanxi, China; Division of Gastroenterology, Department of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA; Division of Gastroenterology, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA
| | - John M Abraham
- Division of Gastroenterology, Department of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA; Division of Gastroenterology, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA
| | - Yulan Cheng
- Division of Gastroenterology, Department of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA; Division of Gastroenterology, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA
| | - Zhixiong Wang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Zhe Wang
- Division of Gastroenterology, Department of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA; Division of Gastroenterology, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA
| | - Guanjun Zhang
- Department of Pathology, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an 710061, Shaanxi, China
| | - Hassan Ashktorab
- Department of Medicine and Cancer Center, Howard University, Washington, DC, USA
| | - Duane T Smoot
- Department of Internal Medicine, Meharry Medical College, Nashville, TN, USA
| | - Robert N Cole
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Tatiana N Boronina
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Lauren R DeVine
- Mass Spectrometry and Proteomics Facility, Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - C Conover Talbot
- Institute for Basic Biomedical Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Zhengwen Liu
- Department of Infectious Diseases, First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an 710061, Shaanxi, China
| | - Stephen J Meltzer
- Division of Gastroenterology, Department of Medicine, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA; Division of Gastroenterology, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, School of Medicine, Baltimore, MD 21205, USA.
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160
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Wang Y, Yu Z, Zhang Z, Ren R, Zhang S. Orderly nucleic acid aggregates by electrostatic self-assembly in single cells for miRNA detection and visualizing. Analyst 2018; 141:2861-4. [PMID: 27063644 DOI: 10.1039/c6an00160b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Orderly nucleic acid aggregates (ONAAs) self-assembled on mesoporous silica nanoparticles (MSNs) with positively charged aminopropyl groups (PC) were firstly developed. Interestingly, a novel electrostatic DNA self-assembly could realize hybridization chain reaction (HCR) on the surface of PCMSNs in single cells. Significantly, a non-destructive amplification strategy based on ONAAs-PCMSNs was successfully developed for miRNA detection and in situ imaging by the prominent and agminated fluorescence-bright spots in living cells.
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Affiliation(s)
- Yuanyuan Wang
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, China
| | - Zhaopeng Yu
- Shandong Province Key Laboratory of Detection Technology for Tumor Makers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Zhen Zhang
- Shandong Province Key Laboratory of Detection Technology for Tumor Makers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Rui Ren
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Shandong Normal University, Jinan 250014, China and Shandong Province Key Laboratory of Detection Technology for Tumor Makers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
| | - Shusheng Zhang
- Shandong Province Key Laboratory of Detection Technology for Tumor Makers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
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The putative tumour suppressor miR-1-3p modulates prostate cancer cell aggressiveness by repressing E2F5 and PFTK1. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:219. [PMID: 30185212 PMCID: PMC6125869 DOI: 10.1186/s13046-018-0895-z] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 08/28/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Previous studies report that miR-1-3p, a member of the microRNA-1 family (miR-1), and functions as a tumor suppressor in several different cancers. However, little is known regarding the biological role and intrinsic regulatory mechanisms of miR-1-3p in prostate cancer (PCa). METHODS In this study, the expression levels of miR-1-3p were first examined in PCa cell lines and tumor tissues by RT-qPCR and bioinformatics. The in vitro and in vivo functional effect of miR-1-3p was examined further. A luciferase reporter assay was conducted to confirm target associations. RESULTS We found that miR-1-3p was significantly downregulated in advanced PCa tissues and cell lines. Low miR-1-3p levels were strongly associated with aggressive clinicopathological features and poor prognosis in PCa patients. Ectopic expression of miR-1-3p in 22RV1 and LncaP cells was sufficient to prevent tumor cell growth and cell cycle progression in vitro and in vivo. Further mechanistic studies revealed that miR-1-3p could directly target the mRNA 3'- untranslated region (3'- UTR) of two central cell cycle genes, E2F5 and PFTK1, and could suppress their mRNA and protein expression. In addition, knockdown of E2F5 and PFTK1 mimicked the tumor-suppressive effects of miR-1-3p overexpression on PCa progression. Conversely, concomitant knockdown of miR-1-3p and E2F5 and PFTK1 substantially reversed the inhibitory effects of either E2F5 or PFTK1 silencing alone. CONCLUSION These data highlight an important role for miR-1-3p in the regulation of proliferation and cell cycle in the molecular etiology of PCa and indicate the potential for miR-1-3p in applications furthering PCa prognostics and therapeutics.
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miR-217 sensitizes chronic myelogenous leukemia cells to tyrosine kinase inhibitors by targeting pro-oncogenic anterior gradient 2. Exp Hematol 2018; 68:80-88.e2. [PMID: 30195077 DOI: 10.1016/j.exphem.2018.09.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 08/30/2018] [Accepted: 09/01/2018] [Indexed: 12/21/2022]
Abstract
BCR-ABL1-independent mechanisms had been thought to mediate drug resistance to tyrosine kinase inhibitors (TKIs) in patients with chronic myelogenous leukemia (CML). The pro-oncogenic anterior gradient 2 (AGR2) mediates drug resistance of cancer cells. In this study, we observed an increased level of AGR2 in TKI-resistant CML cells. Silence of AGR2 in dasatinib-resistant K562 (K562DR) cells led to restored sensitivity to dasatinib both in vitro and in vivo. Exposure to dasatinib induced upregulation of AGR2 in K562 cells, which indicated a probable treatment-related drug resistance. We further investigated the potential interaction between microRNA (miRNA) and AGR2 in K562DR cells and found that downregulation of miR-217 was associated with overexpression of AGR2 in K562DR cells. Luciferase reporter assay identified that miR-217 negatively regulated expression of AGR2 through binding the 3'-untranslated region of AGR2. Hypermethylation of the CpG island on the promoter region of the MIR217 gene is a probable reason for the downregulation of miR-217 in dasatinib-treated K562 cells. Forced expression of miR-217 led to decreased expression of AGR2 as well as compromised TKI-resistant potential of K562DR cells. Similarly, overexpression of miR-217 resensitized K562DR cells to dasatinib treatment in a murine xenograft transplantation model. TKI treatment-induced drug resistance is correlated with a decrease of miR-217 and upregulation of AGR2. The miR-217/AGR2 interaction might be a potential therapeutic target in treating CML patients with TKI resistance.
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Bodulev OL, Sakharov IY. Chemiluminescent Determination of MicroRNA-141 Using Target-Dependent Activation of the Peroxidase-Mimicking DNAzyme. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1498506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Oleg L. Bodulev
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Ivan Yu Sakharov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
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Liu X, Peng H, Liao W, Luo A, Cai M, He J, Zhang X, Luo Z, Jiang H, Xu L. MiR-181a/b induce the growth, invasion, and metastasis of neuroblastoma cells through targeting ABI1. Mol Carcinog 2018; 57:1237-1250. [PMID: 29802737 DOI: 10.1002/mc.22839] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/26/2018] [Accepted: 05/23/2018] [Indexed: 02/05/2023]
Abstract
Neuroblastoma is a pediatric malignancy, and the clinical phenotypes range from localized tumors with excellent outcomes to widely metastatic disease in which long-term survival is approximately 40%, despite intensive therapy. Emerging evidence suggests that aberrant miRNA regulation plays a role in neuroblastoma, but the miRNA functions and mechanisms remain unknown. miR-181 family members were detected in 32 neuroblastoma patients, and the effects of miR-181a/b on cell viability, invasion, and migration were evaluated in vitro and in vivo. A parallel global mRNA expression profile was obtained for neuroblastoma cells overexpressing miR-181a. The potential targets of miR-181a/b were validated. miR-181a/b expression levels were positively associated with MYCN amplification and neuroblastoma aggressiveness. Moreover, ectopic miR-181a/b expression significantly induced the growth and invasion of neuroblastoma cells in vitro and in vivo. Microarray analysis revealed that mRNAs were consistently downregulated after miR-181a overexpression, leading to cell migration. In addition, the expression of ABI1 was suppressed by miR-181a/b, and ABI1 was validated as a direct target of miR-181a/b. We concluded that miR-181a/b were significantly upregulated in aggressive neuroblastoma, which enhanced its tumorigenesis and progression by suppressing the expression of ABI1.
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Affiliation(s)
- Xiaodan Liu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hongxia Peng
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Wang Liao
- Department of Pediatrics, Foshan Maternal and Child Health Care Hospital, Foshan, China
| | - Ailing Luo
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Mansi Cai
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiaohong Zhang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ziyan Luo
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Hua Jiang
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ling Xu
- Department of Hematology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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165
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Evaluation of plasma microRNA expressions in patients with juvenile idiopathic arthritis. Clin Rheumatol 2018; 37:3255-3262. [PMID: 30171379 DOI: 10.1007/s10067-018-4277-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 08/17/2018] [Accepted: 08/22/2018] [Indexed: 12/18/2022]
Abstract
Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic disease of childhood, yet its etiology is unknown. It is known that microribonucleic acids (miRNAs) play a role in immunoregulation. We aimed to evaluate the plasma expression of some candidate miRNAs that are associated with the pathogenesis of autoimmunity. Thirty-one patients diagnosed with JIA and age-sex-matched 31 healthy children were enrolled for the study. The plasma levels of four candidate miRNAs (miRNA-16, miRNA-155, miRNA-204, and miRNA-451), which are known to be associated with autoimmunity, were examined in all the subjects. The plasma levels of miRNAs were measured with real-time PCR in the patients in active and inactive periods and in the healthy controls. The groups were compared with each other. The plasma miRNA-155 levels were found to increase in the JIA patients compared to the healthy controls, and it was statistically more significant in the inactive period. We found that the JIA patients had the higher levels of miRNA-16 and the lower levels of miRNA-204/miRNA-451 expressions compare with the control group, but there was no statistically significant difference. A statistically significant decrease in the plasma levels of miRNA-204 was found in the patients that were in inactive disease with only methotrexate therapy. The plasma miRNA expressions were compared in the JIA subtypes, and it was observed that miRNA-204 levels were higher in polyarticular JIA and miRNA-451 levels were higher in enthesitis-related arthritis without statistical significance. The significant alterations in the plasma expression of miRNA-155 and miRNA-204 suggest to us that these molecules may be related to the pathogenesis of JIA. More comprehensive and functional researches about the role of these molecules are needed in this regard.
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Zhang J, Liu W, Shen F, Ma X, Liu X, Tian F, Zeng W, Xi X, Lin Y. The activation of microRNA-520h-associated TGF-β1/c-Myb/Smad7 axis promotes epithelial ovarian cancer progression. Cell Death Dis 2018; 9:884. [PMID: 30158641 PMCID: PMC6115398 DOI: 10.1038/s41419-018-0946-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 07/04/2018] [Accepted: 08/02/2018] [Indexed: 12/19/2022]
Abstract
Among the gynaecological cancers, epithelial ovarian cancer (EOC) has the highest lethality because of the high incidence of tumour progression and metastasis. Exploration of the detailed mechanisms underlying EOC metastasis and the identification of crucial targets is important to better estimate the prognosis and improve the treatment of this disease. The present study aimed to identify the role of miR-520h in the prognosis of patients with EOC, and the mechanisms of its involvement in EOC progression. We showed that miR-520h was upregulated in 116 patients with EOC, especially in those with advanced-stage disease, and high miR-520h expression predicted poor outcome. Furthermore, ectopic expression of miR-520h enhanced EOC cell proliferation, migration and invasion, and induced epithelial–mesenchymal transition in vitro and in vivo. miR-520h promoted EOC progression by downregulating Smad7, and subsequently activating the TGF-β signalling pathway. Most importantly, TGF-β1 stimulation increased miR-520h expression in EOC cells by upregulating its transcription factor c-Myb. In conclusion, we described the role of the TGF-β1/c-Myb/miR-520h/Smad7 axis in EOC metastasis, and highlighted the possible use of miR-520h as a prognostic marker for EOC.
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Affiliation(s)
- Jing Zhang
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China
| | - Wenxue Liu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Fangqian Shen
- Department of Obstetrics and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China
| | - Xiaoling Ma
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China
| | - Xiaorui Liu
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China
| | - Fuju Tian
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China
| | - Weihong Zeng
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China
| | - Xiaowei Xi
- Department of Obstetrics and Gynecology, Shanghai General Hospital, School of Medicine, Shanghai Jiao Tong University, 85 Wujin Road, Shanghai, 200080, China.
| | - Yi Lin
- International Peace Maternity & Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 910 Hengshan Road, Shanghai, 200030, China.
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167
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Zhaohui W, Yingli N, Hongli L, Haijing W, Xiaohua Z, Chao F, Liugeng W, Hui Z, Feng T, Linfeng Y, Hong J. Amentoflavone induces apoptosis and suppresses glycolysis in glioma cells by targeting miR-124-3p. Neurosci Lett 2018; 686:1-9. [PMID: 30153494 DOI: 10.1016/j.neulet.2018.08.032] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/15/2018] [Accepted: 08/24/2018] [Indexed: 12/27/2022]
Abstract
Malignant glioma is the most common type of brain tumor with poor clinical outcome and survival. Therefore, it is imperative to develop novel therapeutic agents for managing glioma. The aim of this study was to investigate the role of amentoflavone (AF), an active flavonoid component in Selaginella tamariscina Spring, in glioma cells and the underlying mechanism of its action. Our results showed that miR-124-3p expression was significantly down-regulated in glioma tissues relative to normal brain tissues. AF decreased cell viability and triggered apoptosis in both glioma cell lines in a dose-dependent manner. AF induced apoptosis and inhibited glycolysis in the glioma cells by upregulating miR-124-3p. Furthermore, AF upregulated miR-124-3p by repressing DNMT1 through Sp1, which in turn was caused by the activation of ROS/AMPK signaling pathway by AF. In conclusion, AF could induce apoptosis and inhibited glycolysis in glioma cells via miR-124-3p. Our findings provide preliminary experimental data that support further investigation on the therapeutic efficacy of AF in glioma.
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Affiliation(s)
- Wang Zhaohui
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Niu Yingli
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China.
| | - Lin Hongli
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wang Haijing
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhang Xiaohua
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Fang Chao
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Wu Liugeng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Zhang Hui
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Tian Feng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yang Linfeng
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jiang Hong
- The Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, Shandong, China
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Abedini Bakhshmand E, Mohammad Soltani B, Fasihi A, Mowla SJ. Hsa-miR-5582-3P regulatory effect on TGFβ signaling through targeting of TGFβ-R1, TGFβ-R2, SMAD3, and SMAD4 transcripts. J Cell Biochem 2018; 119:9921-9930. [PMID: 30129155 DOI: 10.1002/jcb.27314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 06/26/2018] [Indexed: 11/06/2022]
Abstract
Transforming growth factor β (TGFβ) signaling pathway which is regulated by factors such as microRNAs (miRNAs) has pivotal roles in various cellular processes. Here, we intended to verify bioinformatics predicted regulatory effect of hsa-miR-5582-3P against TGFβ/SMAD signaling pathway components. Quantitative reverse-transcription polymerase chain reaction (RT-qPCR) analysis indicated a negative correlation of expression between hsa-miR-5582-3P against TGFβ-R1, TGFβ-R2, SMAD3, and SMAD4 putative target genes in all of tested cell lines. Also, hsa-miR-5582-3P was significantly downregulated in glioma, breast, and ovarian tumor tissues compared with their normal pairs, detected by RT-qPCR. Then dual luciferase assay supported direct interaction between this miRNA and TGFβ-R1, TGFβ-R2, SMAD3, and SMAD4, 3' untranslated region sequences. Western blot analysis confirmed negative effect of hsa-miR-5582-3P overexpression on at least TGFβ-R1 expression. Consistently, hsa-miR-5582-3P overexpression brought about downregulation of TGFβ-R1, TGFβ-R2, SMAD3, and SMAD4 expression in HCT-116 cell line, followed by cell cycle arrest in sub-G1 phase, detected by flow cytometry. Altogether, our data suggest that hsa-miR-5582-3P reduces the TGFβ/SMAD signaling pathway through downregulation of TGFβ-R1, TGFβ-R2, SMAD3, and SMAD4 transcripts. These data introduce hsa-miR-5582-3P as a potential tumor suppressors-miR and a therapy candidate to be tested in cancers in which TGFβ/SMAD is deregulated.
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Affiliation(s)
- Elham Abedini Bakhshmand
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Bahram Mohammad Soltani
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ali Fasihi
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed Javad Mowla
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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169
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Xiang S, Chen H, Luo X, An B, Wu W, Cao S, Ruan S, Wang Z, Weng L, Zhu H, Liu Q. Isoliquiritigenin suppresses human melanoma growth by targeting miR-301b/LRIG1 signaling. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2018; 37:184. [PMID: 30081934 PMCID: PMC6091185 DOI: 10.1186/s13046-018-0844-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/13/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Isoliquiritigenin (ISL), a natural flavonoid isolated from the root of licorice (Glycyrrhiza uralensis), has shown various pharmacological properties including anti-oxidant, anti-inflammatory and anti-cancer activities. MicroRNAs (miRNAs), a class of small non-coding RNAs, have been reported as post-transcriptional regulators with altered expression levels in melanoma. This study aims to investigate the anti-melanoma effect of ISL and its potential mechanism. METHODS We investigated the effect of ISL on the proliferation and apoptosis of melanoma cell lines with functional assays, such as CCK-8 assay, colony formation assay and flow cytometry. The protein level of apoptosis related genes were measured by western blotting. High-throughput genome sequencing was used for screening differentially expressed miRNAs of melanoma cell lines after the treatment of ISL. We performed functional assays to determine the oncogenic role of miR-301b, the most differentially expressed miRNA, and its target gene leucine rich repeats and immunoglobulin like domains 1 (LRIG1), confirmed by bioinformatic analysis, luciferase reporter assay, western blotting and immunohistochemical assay in melanoma. Immunocompromised mouse models were used to determine the role of miR-301b and its target gene in melanoma tumorigenesis in vivo. The relationship between miR-301b and LRIG1 was further verified in GEO data set and tissue specimens. RESULTS Functional assays indicated that ISL exerted significant growth inhibition and apoptosis induction on melanoma cells. MiR-301b is the most differentially expressed miRNA after the treatment of ISL and significantly downregulated. The suppressive effect of ISL on cell growth is reversed by ectopic expression of miR-301b. Intratumorally administration of miR-301b angomir enhances the inhibitory effect of ISL on tumor growth in vivo. Bioinformatic analysis showed that miR-301b may target LRIG1, miR-301b suppresses the luciferase activity of reporter constructs containing 3'UTR of LRIG1 as well as the expression level of LRIG1. And the anti-cancer effect of ISL is mitigated when LRIG1 is silenced in vivo and in vitro. Analysis of the melanoma samples obtained from patients shows that LRIG1 is negatively correlated with miR-301b. CONCLUSIONS ISL may inhibit the proliferation of melanoma cells by suppressing miR-301b and inducing its target LRIG1.
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Affiliation(s)
- Shijian Xiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huoji Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Xiaojun Luo
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China
| | - Baichao An
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Wenfeng Wu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Siwei Cao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Shifa Ruan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Zhuxian Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Lidong Weng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Hongxia Zhu
- Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510315, China.
| | - Qiang Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, 510515, China.
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170
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Wang J, Wang G, Li B, Qiu C, He M. miR-141-3p is a key negative regulator of the EGFR pathway in osteosarcoma. Onco Targets Ther 2018; 11:4461-4478. [PMID: 30104888 PMCID: PMC6074763 DOI: 10.2147/ott.s171304] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Many studies have used miRNA to modulate osteosarcoma development by regulating protein expression, and these studies showed that the expression of EGFR is increased in osteosarcoma. Methods Western blot, real-time PCR and immunohistochemical were used to detect the expression of EGFR and miR-141 in osteosarcoma tissues and cells. The correlation between miR-141 and the grading of osteosarcoma and the correlation with the survival time of the patients were analyzed. After predicting the target effect of miR-141 on EGFR by miRDB, correlation analysis was used to analyze the correlation between miR-141 and EGFR. Luciferase reporter gene, western blot and real-time PCR were used to detect the targeting effect of miR-141 on EGFR. Then we detected the effect of miR-141 on proliferation by MTT and PI staining. The effect of miR-141 on cell apoptosis was detected by Hochest33258 and AV-PI staining, and the effect of miR-141 on cell migration was detected by Transwell. The regulatory effects of miR-141 on related proteins were detected by western blot and real-time PCR. Finally, we transfected EGFR and EGFR DEL (mutation with miR-141 binding site) in osteosarcoma cells, and detected the effects of miR-141 on cell proliferation, apoptosis, migration and related proteins. Results The expression of miR-141-3p was negatively correlated with the expression of EGFR in osteosarcoma. The overexpression of miR-141-3p was not only closely related to the classification and size of the osteosarcoma but also had a negative effect on the growth and migration of the osteosarcoma through negative regulation of the expression of EGFR. MiR-141 can inhibit the growth and metastasis of osteosarcoma cells by targeting EGFR and affecting its downstream pathway proteins. Conclusion Our study provides miR-141-3p may be a new theoretical basis for the treatment of osteosarcoma.
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Affiliation(s)
- Jiashi Wang
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Guangbin Wang
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Bin Li
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Chuang Qiu
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
| | - Ming He
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China,
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171
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MiR-133b targets Sox9 to control pathogenesis and metastasis of breast cancer. Cell Death Dis 2018; 9:752. [PMID: 29970901 PMCID: PMC6030174 DOI: 10.1038/s41419-018-0715-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/28/2018] [Accepted: 05/09/2018] [Indexed: 02/07/2023]
Abstract
The miR-133b, a commonly recognized muscle-specific miRNA, was reported to be deregulated in many kinds of cancers. However, its potential roles in tumorigenesis remain greatly elusive. Herein, we demonstrate that miR-133b is significantly suppressed in human breast cancer specimens, which is reversely correlated to histological grade of the cancer. Ectopic expression of miR-133b suppresses clonogenic ability and metastasis-relevant traits in vitro, as well as carcinogenesis and pulmonary metastasis in vivo. Further studies have identified Sox9, c-MET, and WAVE2 as direct targets of miR-133b, in which Sox9 contributes to all miR-133b-endowed effects including cell proliferation, colony formation, as well as cell migration and invasion in vitro. Moreover, re-expression of Sox9 reverses miR-133b-mediated metastasis suppression in vivo. Taken together, these findings highlight an important role for miR-133b in the regulation of tumorigenesis and metastatic potential of breast cancer and suggest a potential application of miR-133b in cancer treatment.
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172
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Kurata JS, Lin RJ. MicroRNA-focused CRISPR-Cas9 library screen reveals fitness-associated miRNAs. RNA (NEW YORK, N.Y.) 2018; 24:966-981. [PMID: 29720387 PMCID: PMC6004052 DOI: 10.1261/rna.066282.118] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 04/30/2018] [Indexed: 06/08/2023]
Abstract
MicroRNAs (miRNAs) are post-transcriptional gene regulators that play important roles in the control of cell fitness, differentiation, and development. The CRISPR-Cas9 gene-editing system is composed of the Cas9 nuclease in complex with a single guide RNA (sgRNA) and directs DNA cleavage at a predetermined site. Several CRISPR-Cas9 libraries have been constructed for genome-scale knockout screens of protein function; however, few libraries have included miRNA genes. Here we constructed a miRNA-focused CRISPR-Cas9 library that targets 1594 (85%) annotated human miRNA stem-loops. The sgRNAs in our LX-miR library are designed to have high on-target and low off-target activity, and each miRNA is targeted by four to five sgRNAs. We used this sgRNA library to screen for miRNAs that affect cell fitness of HeLa or NCI-N87 cells by monitoring the change in frequency of each sgRNA over time. By considering the expression in the tested cells and the dysregulation of the miRNAs in cancer specimens, we identified five HeLa pro-fitness and cervical cancer up-regulated miRNAs (miR-31-5p, miR-92b-3p, miR-146b-5p, miR-151a-3p, and miR-194-5p). Similarly, we identified six NCI-N87 pro-fitness and gastric cancer up-regulated miRNAs (miR-95-3p, miR-181a-5p, miR-188-5p, miR-196b-5p, miR-584-5p, and miR-1304-3p), as well as three anti-fitness and down-regulated miRNAs (let-7a-3p, miR-100-5p, and miR-149-5p). Some of those miRNAs are known to be oncogenic or tumor-suppressive, but others are novel. Taken together, the LX-miR library is useful for genome-wide unbiased screening to identify miRNAs important for cellular fitness and likely to be useful for other functional screens.
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Affiliation(s)
- Jessica S Kurata
- Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, California 91010, USA
- Irell and Manella Graduate School of Biological Sciences of the City of Hope, Duarte, California 91010, USA
| | - Ren-Jang Lin
- Department of Molecular and Cellular Biology, Beckman Research Institute of the City of Hope, Duarte, California 91010, USA
- Irell and Manella Graduate School of Biological Sciences of the City of Hope, Duarte, California 91010, USA
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Dong J, Geng J, Tan W. MiR-363-3p suppresses tumor growth and metastasis of colorectal cancer via targeting SphK2. Biomed Pharmacother 2018; 105:922-931. [PMID: 30021386 DOI: 10.1016/j.biopha.2018.06.052] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 06/09/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022] Open
Abstract
Aberrant expression of miR-363-3p is seen in a wide array of cancers. The exact function of miR-363-3p in colorectal cancer (CRC), and the underlying mechanisms remain undefined. In the current study, we observed a down-regulation of miR-363-3p in CRC tissues, along with a strong correlation between low miR-363-3p levels and clinico-pathological parameters like tumor stage and lymph node metastasis. Ectopic overexpression of miR-363-3p in HT29 and HCT116 cell lines effectively inhibited cell proliferation and metastasis, and promoted apoptosis. Concurrently, miR-363-3p inhibition facilitated cell proliferation and suppressed apoptosis. Consistent with the in vitro findings, tumor growth and metastasis were also suppressed by the overexpression of miR-363-3p in vivo. Furthermore, miR-363-3p overexpression resulted in a significant decrease in SphK2 mRNA and protein levels, while miR-363-3p inhibition elevated SphK2 levels in CRC cell lines. Overexpression of SphK2 significantly abrogated the effects of miR-363-3p on cell growth, apoptosis, and metastasis. Taken together, our findings establish miR-363-3p as a potential tumor suppressor in CRC with SphK2 as its downstream target.
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Affiliation(s)
- Jinlang Dong
- Laiyang Central Hospital, Yantai, Shandong, China
| | - Jianshan Geng
- The 2nd People's Hospital of Laiyang, Yantai, Shandong, China
| | - Weiwei Tan
- Laiyang Central Hospital, Yantai, Shandong, China.
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174
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Wu X, Wu Y, He L, Wu L, Wang X, Liu Z. Effects of the intestinal microbial metabolite butyrate on the development of colorectal cancer. J Cancer 2018; 9:2510-2517. [PMID: 30026849 PMCID: PMC6036887 DOI: 10.7150/jca.25324] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 05/02/2018] [Indexed: 12/15/2022] Open
Abstract
Colorectal cancer (CRC) is one of the major health threats in developed countries. Changes in dietary components, such as more protein and lipid intake, can increase the risk of CRC. Diet affects CRC in many ways. They regulate the composition and function of gut microbiota, which have an amazing metabolic capacity and can produce short chain fatty acids (SCFAs), such as propionate, acetate, and butyrate. Butyrate is a principal energy source for colonic epithelial cells and plays an important role in maintaining the stability of gut microbiota and the integrity of intestinal epithelium. However, there are few studies reviewing the anti-CRC potentials of butyrate. This review summarizes the recent research progresses in the effect of gut microbiota imbalance and the decrease in intestinal microbial metabolite butyrate caused by unbalanced diet on CRC development, and discusses the mechanisms of butyrate-induced anti-CRC activities, which may guide people to prevent CRC by improving diet structures.
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Affiliation(s)
- Xinqiang Wu
- Gannan Medical University, Ganzhou, Jiangxi, China
| | - Yuanbing Wu
- The First People's Hospital of Jiashan County, Jiaxing, Zhejiang, China
| | - Liangmei He
- The First Affiliated Hospital, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Longhuo Wu
- College of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Xiangcai Wang
- The First Affiliated Hospital, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zhiping Liu
- School of Basic Medicine, Gannan Medical University, Ganzhou, Jiangxi, China
- Ganzhou Cancer Precision Engineering Research Center, Ganzhou, Jiangxi, China
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175
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Choudhury NR, Michlewski G. Quantitative identification of proteins that influence miRNA biogenesis by RNA pull-down-SILAC mass spectrometry (RP-SMS). Methods 2018; 152:12-17. [PMID: 29890283 PMCID: PMC6335501 DOI: 10.1016/j.ymeth.2018.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 12/23/2022] Open
Abstract
RNA pull-down SILAC mass spectrometry (RP–SMS) identifies miRNA biogenesis factors. Pre-let-7a-1 binds a number of RNA-binding proteins. GGAG and UAGG motifs are confirmed to bind LIN28A and hnRNP A1, respectively.
RNA-binding proteins mediate and control gene expression. As some examples, they regulate pre-mRNA synthesis and processing; mRNA localisation, translation and decay; and microRNA (miRNA) biogenesis and function. Here, we present a detailed protocol for RNA pull-down coupled to stable isotope labelling by amino acids in cell culture (SILAC) mass spectrometry (RP–SMS) that enables quantitative, fast and specific detection of RNA-binding proteins that regulate miRNA biogenesis. In general, this method allows for the identification of RNA-protein complexes formed using in vitro or chemically synthesized RNAs and protein extracts derived from cultured cells.
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Affiliation(s)
- Nila Roy Choudhury
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh EH9 3BF, UK; Division of Infection and Pathway Medicine, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK
| | - Gracjan Michlewski
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Michael Swann Building, Edinburgh EH9 3BF, UK; Division of Infection and Pathway Medicine, University of Edinburgh, The Chancellor's Building, 49 Little France Crescent, Edinburgh EH16 4SB, UK; Zhejiang University-University of Edinburgh Institute, Zhejiang University, 718 East Haizhou Road, Haining, Zhejiang 314400, PR China.
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176
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Enzyme-free isothermal target-recycled amplification combined with PAGE for direct detection of microRNA-21. Anal Biochem 2018; 550:117-122. [DOI: 10.1016/j.ab.2018.04.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/19/2018] [Accepted: 04/24/2018] [Indexed: 12/29/2022]
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177
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Qu X, Gao D, Ren Q, Jiang X, Bai J, Sheng L. miR-211 inhibits proliferation, invasion and migration of cervical cancer via targeting SPARC. Oncol Lett 2018; 16:853-860. [PMID: 29963155 PMCID: PMC6019960 DOI: 10.3892/ol.2018.8735] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 05/11/2018] [Indexed: 12/15/2022] Open
Abstract
Cervical cancer remains one of the most frequent gynecological malignancies among females around the world. Therefore, fully understanding the molecular mechanisms underlying the progression of cervical cancer may be critical for the development of effective therapeutic strategies against cervical cancer. The object was to evaluate the potential effect of miR-211 and verify its influence on the function of secreted protein acidic and rich in cysteine (SPARC) in cervical cancer. It was demonstrated that miR-211 was downregulated in cervical cancer cell lines (HeLa and C33A) and cervical cancer specimens, while SPARC expression level was higher in tumor tissues. We also revealed miR-211 upregulated expression could inhibit cells proliferation, migration and invasion in vivo. SPARC was confirmed as a direct and functional target of miR-211 and the inverse relationship between them was also observed. The results of the present study suggest that miR-211 reduced cancer growth, migration and invasion, and suppresses the SPARC expression in cervical cancer. This newly identified miR-211 may provide further insight into the progression and offers a promising target for cervical cancer therapy.
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Affiliation(s)
- Xuqin Qu
- Reproductive Center, Yantaishan Hospital, Yantai, Shandong 264001, P.R. China
| | - Dezhen Gao
- Department of Blood Transfusion, Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
| | - Qingxia Ren
- Clinical Laboratory, People's Hospital of Rizhao, Rizhao, Shandong 276826, P.R. China
| | - Xiufang Jiang
- Department of Obstetrics, People's Hospital of Zhangqiu District, Jinan, Shandong 250200, P.R. China
| | - Jianhua Bai
- Department of Obstetrics, People's Hospital of Zhangqiu District, Jinan, Shandong 250200, P.R. China
| | - Li Sheng
- Clinical Laboratory, Yuhuangding Hospital, Yantai, Shandong 264000, P.R. China
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178
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Novel internal regulators and candidate miRNAs within miR-379/miR-656 miRNA cluster can alter cellular phenotype of human glioblastoma. Sci Rep 2018; 8:7673. [PMID: 29769662 PMCID: PMC5955984 DOI: 10.1038/s41598-018-26000-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 04/17/2018] [Indexed: 12/26/2022] Open
Abstract
Clustered miRNAs can affect functioning of downstream pathways due to possible coordinated function. We observed 78–88% of the miR-379/miR-656 cluster (C14MC) miRNAs were downregulated in three sub-types of diffuse gliomas, which was also corroborated with analysis from The Cancer Genome Atlas (TCGA) datasets. The miRNA expression levels decreased with increasing tumor grade, indicating this downregulation as an early event in gliomagenesis. Higher expression of the C14MC miRNAs significantly improved glioblastioma prognosis (Pearson’s r = 0.62; p < 3.08e-22). ENCODE meta-data analysis, followed by reporter assays validated existence of two novel internal regulators within C14MC. CRISPR activation of the most efficient internal regulator specifically induced members of the downstream miRNA sub-cluster and apoptosis in glioblastoma cells. Luciferase assays validated novel targets for miR-134 and miR-485-5p, two miRNAs from C14MC with the most number of target genes relevant for glioma. Overexpression of miR-134 and miR-485-5p in human glioblastoma cells suppressed invasion and proliferation, respectively. Furthermore, apoptosis was induced by both miRs, individually and in combination. The results emphasize the tumor suppressive role of C14MC in diffuse gliomas, and identifies two specific miRNAs with potential therapeutic value and towards better disease management and therapy.
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179
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Wang Z, Li J, Fu Y, Zhao Z, Zhang C, Li N, Li J, Cheng H, Jin X, Lu B, Guo Z, Qian J, Liu L. A Rapid Screen for Host-Encoded miRNAs with Inhibitory Effects against Ebola Virus Using a Transcription- and Replication-Competent Virus-Like Particle System. Int J Mol Sci 2018; 19:ijms19051488. [PMID: 29772717 PMCID: PMC5983748 DOI: 10.3390/ijms19051488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/09/2018] [Accepted: 05/14/2018] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) may become efficient antiviral agents against the Ebola virus (EBOV) targeting viral genomic RNAs or transcripts. We previously conducted a genome-wide search for differentially expressed miRNAs during viral replication and transcription. In this study, we established a rapid screen for miRNAs with inhibitory effects against EBOV using a tetracistronic transcription- and replication-competent virus-like particle (trVLP) system. This system uses a minigenome comprising an EBOV leader region, luciferase reporter, VP40, GP, VP24, EBOV trailer region, and three noncoding regions from the EBOV genome and can be used to model the life cycle of EBOV under biosafety level (BSL) 2 conditions. Informatic analysis was performed to select up-regulated miRNAs targeting the coding regions of the minigenome with the highest binding energy to perform inhibitory effect screening. Among these miRNAs, miR-150-3p had the most significant inhibitory effect. Reverse transcription polymerase chain reaction (RT-PCR), Western blot, and double fluorescence reporter experiments demonstrated that miR-150-3p inhibited the reproduction of trVLPs via the regulation of GP and VP40 expression by directly targeting the coding regions of GP and VP40. This novel, rapid, and convenient screening method will efficiently facilitate the exploration of miRNAs against EBOV under BSL-2 conditions.
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Affiliation(s)
- Zhongyi Wang
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Jiaming Li
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Yingying Fu
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Zongzheng Zhao
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Chunmao Zhang
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Nan Li
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Jingjing Li
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Hongliang Cheng
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Xiaojun Jin
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Bing Lu
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Zhendong Guo
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Jun Qian
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
| | - Linna Liu
- Academy of Military Medical Sciences, No. 27 Taiping Road, Beijing 100850, China.
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180
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Wang Y, Bao W, Liu Y, Wang S, Xu S, Li X, Li Y, Wu S. miR-98-5p contributes to cisplatin resistance in epithelial ovarian cancer by suppressing miR-152 biogenesis via targeting Dicer1. Cell Death Dis 2018; 9:447. [PMID: 29670086 PMCID: PMC5906447 DOI: 10.1038/s41419-018-0390-7] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 12/14/2022]
Abstract
Epithelial ovarian cancer (EOC) is a highly lethal gynecological malignancy, and cisplatin resistance is usually correlated with the poor prognosis of EOC. Increasing evidence indicates that the dysregulation of miRNAs is related to chemotherapy sensitivity. In this study, we revealed that miR-98-5p, a member of the let-7 family, was enriched in cisplatin-resistant EOC cells compared with cisplatin-sensitive cells, and could promote cisplatin resistance in EOC cells. Further studies showed that miR-98-5p could directly target the 3′-UTR of Dicer1 and suppress its expression, causing global miRNA downregulation. By miRNA array and qRT-PCR verification, we identified miR-152 as the vital downstream target of the miR-98-5p/Dicer1 axis in EOC cells. Moreover, we demonstrated that the ectopic expression of miR-152 reversed cisplatin resistance both in vitro and in vivo by targeting RAD51, a central member in homologous recombination. Importantly, miR-98-5p expression, as determined by in situ hybridization in tumor tissues, was associated with poor outcome of EOC patients. Together, these findings suggest the essential role of the miR-98-5p/Dicer1/miR-152 pathway in regulating cisplatin resistance of EOC cells and provide a potential target for EOC therapy.
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Affiliation(s)
- Yanan Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Bao
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Liu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shiyu Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengjie Xu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanli Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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181
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Dasgupta P, Kulkarni P, Majid S, Shahryari V, Hashimoto Y, Bhat NS, Shiina M, Deng G, Saini S, Tabatabai ZL, Yamamura S, Tanaka Y, Dahiya R. MicroRNA-203 Inhibits Long Noncoding RNA HOTAIR and Regulates Tumorigenesis through Epithelial-to-mesenchymal Transition Pathway in Renal Cell Carcinoma. Mol Cancer Ther 2018; 17:1061-1069. [PMID: 29440295 PMCID: PMC5932222 DOI: 10.1158/1535-7163.mct-17-0925] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/27/2017] [Accepted: 02/09/2018] [Indexed: 12/28/2022]
Abstract
This study aims to investigate the role of miR-203-HOTAIR interaction in the suppression of renal cell carcinoma (RCC). We employed series of in vitro assays such as proliferation, invasion, migration, and colony formation along with in vivo tumor xenograft model. Profiling of miR-203 and HOTAIR expression revealed that miR-203 was significantly underexpressed, whereas HOTAIR was overexpressed in RCC cell lines and clinical specimens compared with normal cell line and tissue. Both miR-203 and HOTAIR expression significantly distinguished malignant from normal tissues and significantly correlated with clinicopathologic characteristics of patients. Overexpression of miR-203 significantly inhibited proliferation, migration, and invasion with an induction of apoptosis and cell-cycle arrest. However, HOTAIR suppression resulted in the similar functional effects in the same RCC cell lines. In silico, RNA-22 algorithm showed a binding site for miR-203 in HOTAIR. We observed a direct interaction between miR-203 and HOTAIR by RNA-immunoprecipitation (RIP) and luciferase reporter assays. We show that miR-203-HOTAIR interaction resulted in the inhibition of epithelial-to-mesenchymal transition (EMT) and metastatic genes as indicated by induction of key metastasis-suppressing proteins E-cadherin, claudin (epithelial markers), and PTEN along with induction of tumor suppressor genes p21 and p27. A significant decrease in vimentin (mesenchymal marker), KLF4, and Nanog (stemness markers) was also observed. This is the first report demonstrating miR-203-mediated regulation of HOTAIR induces tumor suppressor effects in RCC by regulating EMT and metastatic pathway genes. Thus, the study suggests that therapeutic regulation of HOTAIR by miR-203 overexpression may provide an opportunity to regulate RCC growth and metastasis. Mol Cancer Ther; 17(5); 1061-9. ©2018 AACR.
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Affiliation(s)
- Pritha Dasgupta
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Priyanka Kulkarni
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Shahana Majid
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Varahram Shahryari
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Yutaka Hashimoto
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Nadeem S Bhat
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Marisa Shiina
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Guoren Deng
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Sharanjot Saini
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Z Laura Tabatabai
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Soichiro Yamamura
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Yuichiro Tanaka
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California
| | - Rajvir Dahiya
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, San Francisco, California.
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182
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Li J, Fu F, Wan X, Huang S, Wu D, Li Y. Up-regulated miR-29c inhibits cell proliferation and glycolysis by inhibiting SLC2A3 expression in prostate cancer. Gene 2018; 665:26-34. [PMID: 29715514 DOI: 10.1016/j.gene.2018.04.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 03/14/2018] [Accepted: 04/27/2018] [Indexed: 12/11/2022]
Abstract
Prostate cancer (PCa) is the most commonly cancer in male worldwide. However, the molecular mechanisms underlying the progression of PCa remain unclear. MiR-29c was reported to be down-regulated in several kinds of tumors. Here, we for the first time demonstrated miR-29c was down-regulated in PCa samples. SLC2A3, a regulator of glycolysis, was validated as a direct target of miR-29c. Moreover, functional studies showed miR-29c could inhibit cell growth, induce apoptosis and deceased the rate of glucose metabolism. Accordingly, we identified miR-29c acted as a tumor-suppressor and was down-regulated in PCa. We thought this study will provide useful information to explore the potential candidate biomarkers for diagnosis and prognosis targets of PCa.
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Affiliation(s)
- Junliang Li
- The International Peace Maternity and Child Health Hospital Affiliated to Shanghai Jiaotong University, Shanghai 200433, People's Republic of China
| | - Fangqiu Fu
- School of Life Science, Fudan University, Shanghai 200433, People's Republic of China
| | - Xuechao Wan
- School of Life Science, Fudan University, Shanghai 200433, People's Republic of China
| | - Shengsong Huang
- Department of Urology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China
| | - Denglong Wu
- Department of Urology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200433, People's Republic of China.
| | - Yao Li
- School of Life Science, Fudan University, Shanghai 200433, People's Republic of China.
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183
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Xiao F, Cheng Z, Wang P, Gong B, Huang H, Xing Y, Liu F. MicroRNA-28-5p inhibits the migration and invasion of gastric cancer cells by suppressing AKT phosphorylation. Oncol Lett 2018; 15:9777-9785. [PMID: 29928352 PMCID: PMC6004724 DOI: 10.3892/ol.2018.8603] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 09/13/2017] [Indexed: 12/17/2022] Open
Abstract
Gastric cancer is a polygenic disease with a high mortality rate worldwide. Although a number of dysregulated genes have been confirmed to be involved in development and progression of gastric cancer, the molecular mechanisms by which this occurs remain unclear. The present study identified that microRNA (miR-28-5p) was involved in the migration and invasion of gastric cancer cells, and was able to affect the prognosis of patients with gastric cancer. Reverse transcription-quantitative polymerase chain reaction analysis indicated that the expression of miR-28-5p was significantly downregulated in gastric cancer tissues, and that patients with higher expression had a good prognosis. miR-28-5p expression was significantly associated with depth of invasion, lymph node metastasis and pathological stage. Gastric cancer cells overexpressing miR-28-5p exhibited a marked reduction of migration and invasion by Transwell and wound scratch assay. The phosphorylation of RAC serine/threonine-protein kinase (AKT), which affected cellular invasion and metastasis, was significantly inhibited by overexpression of miR-28-5p. In conclusion, miR-28-5p is a tumor suppressor that inhibits gastric cancer cell migration and invasion through repressing AKT phosphorylation. miR-28-5p may therefore represent a potential biomarker for the prognosis of gastric cancer and a novel therapeutic target in advanced gastric cancer.
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Affiliation(s)
- Fangtao Xiao
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Zhenguo Cheng
- Department of Cell Biology, Key Laboratory of Cell Biology, Ministry of Public Health, and Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Pengliang Wang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Baoheng Gong
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Hanwei Huang
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yanan Xing
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Funan Liu
- Department of Surgical Oncology and General Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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184
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Hu Q, Du K, Mao X, Ning S. miR-197 is downregulated in cervical carcinogenesis and suppresses cell proliferation and invasion through targeting forkhead box M1. Oncol Lett 2018; 15:10063-10069. [PMID: 29928375 DOI: 10.3892/ol.2018.8565] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 06/15/2017] [Indexed: 12/21/2022] Open
Abstract
Cervical cancer is the second most common type of cancer in females worldwide. It has been demonstrated that microRNAs (miRs) serve important roles in the occurrence and development of various types of cancer, including cervical cancer. The results of the present study revealed that miR-197 was downregulated in cervical cancer tissues and cell lines. Restoration of miR-197 expression significantly inhibited cell viability and invasion of cervical cancer. Additionally, forkhead box M1 (FOXM1) was identified as a direct target gene of miR-197. Bioinformatic analysis revealed that FOXM1 was a potential target gene of miR-197. Luciferase reporter assay, reverse transcription-quantitative polymerase chain reaction and western blot analysis demonstrated that miR-197 decreased FOXM1 expression through direct binding to its 3'-untranslated region. Furthermore, the effects of FOXM1 underexpression were comparable with the effects induced by miR-197 overexpression in cervical cancer cells, suggesting that FOXM1 acted as a downstream effector in miR-197-mediated proliferation and invasion of cervical cancer cells. The results of the present study suggested that miR-197 inhibited growth and metastasis of cervical cancer by directly targeting FOXM1.
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Affiliation(s)
- Qiyan Hu
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, P.R. China
| | - Ke Du
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, P.R. China
| | - Xiaogang Mao
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, P.R. China
| | - Siqing Ning
- Department of Obstetrics and Gynecology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441021, P.R. China
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185
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Ni H, Dai X, Leng X, Deng M, Qin Y, Ji Q, Xu C, Li J, Liu Y. Higher variety and quantity of microRNA-139-5p isoforms confer suppressive role in hepatocellular carcinoma. J Cell Biochem 2018; 119:6806-6813. [PMID: 29693285 DOI: 10.1002/jcb.26874] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 03/21/2018] [Indexed: 01/14/2023]
Abstract
MiRNA isoforms (isomiRs) were defined as an addition or deletion of one or more nucleotides at the 5' or 3' ends or both. Different isomiRs of the same miRNA can target different genes, which have extended the regulatory scale medicated by miRNA. In this study, we systematically analyzed miRNA isoforms in hepatocellular carcinoma (HCC) based on The Cancer Genome Atlas (TCGA) data and further explore their role by in silico and in vitro studies. We found that higher variety and quantity of miR-139-5p isoforms negatively correlated with the malignancy of HCC. And patients with higher variety and quantity of iso-miR-139-5p exhibited favorable survival, independent of tumor stage. Interestingly, miR-139-5p -1|-1 showed increased complementary effect of its target IGF1R than the archetype of miR-139-5p, and could further inhibit cellular movement more vigorously than its archetype. In conclusion, not only miR-139-5p itself, but its isoforms' variety and quantity confer suppressive role in HCC.
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Affiliation(s)
- Hengli Ni
- Department of Pathology, Medical College of Soochow University, Suzhou, China
| | - Xiaoxiao Dai
- Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xueqin Leng
- Department of Bioinformatics, Medical College of Soochow University, Soochow University, Suzhou, China
| | - Min Deng
- Department of Pathology, Medical College of Soochow University, Suzhou, China
| | - Yan Qin
- Department of Pathology, Medical College of Soochow University, Suzhou, China.,Department of Pathology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Qinghua Ji
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chunfang Xu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianming Li
- Department of Pathology, Medical College of Soochow University, Suzhou, China
| | - Yao Liu
- Department of Pathology, Medical College of Soochow University, Suzhou, China.,Department of Pathology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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186
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Wang M, Gao H, Qu H, Li J, Liu K, Han Z. MiR-137 suppresses tumor growth and metastasis in clear cell renal cell carcinoma. Pharmacol Rep 2018; 70:963-971. [PMID: 30107346 DOI: 10.1016/j.pharep.2018.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 04/09/2018] [Accepted: 04/20/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND The most frequent type of renal cell carcinoma is called clear-cell renal cell carcinoma (ccRCC) which is associated with a poor prognosis. It has been observed that miR-137 is aberrantly expressed in many different kinds of human malignancies including ccRCC. This research aims to examine the role of miR-137 in ccRCC. METHODS Quantitative RT-PCR (qRT-PCR) was applied to measure miR-137 expression in ccRCC and adjacent noncancerous tissue. Gene expression was determined by western blot. Cell Counting Kit-8 (CCK-8) assay, flow cytometry and Transwell assay were used to determine the effects of miR-137 on cell growth, apoptosis and invasion, respectively. Moreover, xenograft and pulmonary metastasis animal models were established to investigate the role of miR-137 in vivo. RESULTS Our findings show that there was significant downregulation of miR-137 in ccRCC tissue relative to corresponding non-cancerous tissue. Ectopic miR-137 expression in ccRCC cells led to suppression of cell growth and invasion, as well as apoptosis induction. In contrast, knockdown of miR-137 enhances proliferation and invasion, inhibits apoptosis. It also confirms that miR-137 plays a tumor supressor role in vivo. Mechanically, miR-137 directly targets the 3'-UTR of RLIP76 which is an established oncogene in ccRCC. CONCLUSION MiR-137 serves as a tumor suppressor, which can be considered a potential therapeutic target in ccRCC.
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Affiliation(s)
- Meizhi Wang
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Haijun Qu
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jing Li
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Kaili Liu
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, China
| | - Zhiwu Han
- Department of Pharmacy, The Affiliated Hospital of Qingdao University, Qingdao, China.
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187
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Huang Q, Ma Q. MicroRNA-106a inhibits cell proliferation and induces apoptosis in colorectal cancer cells. Oncol Lett 2018; 15:8941-8944. [PMID: 29805629 PMCID: PMC5958685 DOI: 10.3892/ol.2018.8516] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 06/09/2017] [Indexed: 12/19/2022] Open
Abstract
MicroRNAs (miRNAs) regulate mammalian cell growth, differentiation and apoptosis by altering the expression of other genes, and serve multiple roles in tumorigenesis and progression. miR-106a has been implicated in several types of malignancies. However, its role in colorectal cancer (CRC) remains unknown. The present study reported that in this particular cancer, miR-106a exhibits a tumor suppressive role. It was demonstrated that the high expression of miR-106a in CRC cells is negatively associated with E2F transcription factor 1 protein level and positively associated with caspase activation, suggesting a potential molecular switch.
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Affiliation(s)
- Qinghua Huang
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China
| | - Qunying Ma
- Department of Gastroenterology, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510700, P.R. China
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188
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Wang Y, Li J, Kuang D, Wang X, Zhu Y, Xu S, Chen Y, Cheng H, Zhao Q, Duan Y, Wang G. miR-148b-3p functions as a tumor suppressor in GISTs by directly targeting KIT. Cell Commun Signal 2018; 16:16. [PMID: 29661252 PMCID: PMC5902930 DOI: 10.1186/s12964-018-0228-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/06/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Gain-of-function mutations and overexpression of KIT are characteristic features of gastrointestinal stromal tumor (GIST). Dysregulation in miRNA expression may lead to KIT overexpression and tumorigenesis. METHODS miRNA microarray analysis and real-time PCR were used to determine the miRNA expression profiles in a cohort of 69 clinical samples including 50 CD117IHC+/KITmutation GISTs and 19 CD117IHC-/wild-type GISTs. GO enrichment and KEGG pathway analyses were performed to reveal the predicted targets of the dysregulated miRNAs. Of the dysregulated miRNAs whose expression was inversely correlated with that of KIT miRNAs were predicted by bioinformatics analysis and confirmed by luciferase reporter assay. Cell counting kit-8 (CCK-8) and flow cytometry were used to measure the cell proliferation, cycle arrest and apoptosis. Wound healing and transwell assays were used to evaluate migration and invasion. A xenograft BALB/c nude mouse model was applied to investigate the tumorigenesis in vivo. Western blot and qRT-PCR were used to investigate the protein and mRNA levels of KIT and its downstream effectors including ERK, AKT and STAT3. RESULTS Of the six miRNAs whose expression was inversely correlated with that of KIT, we found that miR-148b-3p was significantly downregulated in the CD117IHC+/KITmutation GIST cohort. This miRNA was subsequently found to inhibit proliferation, migration and invasion of GIST882 cells. Mechanistically, miR-148b-3p was shown to regulate KIT expression through directly binding to the 3'-UTR of the KIT mRNA. Restoration of miR-148b-3p expression in GIST882 cells led to reduced expression of KIT and the downstream effectors proteins ERK, AKT and STAT3. However, overexpression of KIT reversed the inhibitory effect of miR-148b-3p on cell proliferation, migration and invasion. Furthermore, we found that reduced miR-148b-3p expression correlated with poor overall survival (OS) and disease-free survival (DFS) in GIST patients. CONCLUSION miR-148b-3p functions as an important regulator of KIT expression and a potential prognostic biomarker for GISTs.
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Affiliation(s)
- Yu Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Jun Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China
| | - Dong Kuang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Xiaoyan Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Yuanli Zhu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Sanpeng Xu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Yaobing Chen
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Henghui Cheng
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, People's Republic of China
| | - Yaqi Duan
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China.
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
| | - Guoping Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Dadao, Wuhan, 430030, People's Republic of China.
- Department of Pathology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, People's Republic of China.
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189
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Li L, Song W, Yan X, Li A, Zhang X, Li W, Wen X, Zhou L, Yu D, Hu JF, Cui J. Friend leukemia virus integration 1 promotes tumorigenesis of small cell lung cancer cells by activating the miR-17-92 pathway. Oncotarget 2018; 8:41975-41987. [PMID: 28410216 PMCID: PMC5522042 DOI: 10.18632/oncotarget.16715] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/20/2017] [Indexed: 01/08/2023] Open
Abstract
Small cell lung cancer (SCLC) is regarded as the most devastative type of human lung malignancies. The rapid and disseminated growth pattern remains the primary cause of poor clinical prognosis in patients with SCLC. However, the molecular factors that drive rapid progression of SCLC remain unclear. Friend leukemia virus integration 1 (FLI1), an Ets transcription factor family member, has been previously reported to act as a major driver of hematological malignancies. In this study, we explored the potential role of FLI1 in SCLC. Using immunohistochemical staining, we found that FLI1 was significantly upregulated in SCLC tissues, compared to that in non-small cell lung cancer (NSCLC) and normal lung tissues (p < 0.01). The expression score of FLI1 oncoprotein was associated with the extensive stage of SCLC and the overexpressed Ki67. Knockdown of FLI1 with small interfering RNA (siRNA) or short hairpin RNA (shRNA) promoted apoptosis and induced repression of cell proliferation, tumor colony formation and in vivo tumorigenicity in highly aggressive SCLC cell lines. Importantly, we discovered that FLI1 promoted tumorigenesis by activating the miR-17-92 cluster family. This study uncovers FLI1 as an important driving factor that promotes tumor growth in SCLC through the miR-17-92 pathway. FLI1 may serve as an attractive target for therapeutic intervention of SCLC.
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Affiliation(s)
- Lingyu Li
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Wei Song
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Xu Yan
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Ailing Li
- Stanford University Medical School, Palo Alto Veterans Institute for Research, Palo Alto, CA, USA
| | - Xiaoying Zhang
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Wei Li
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Xue Wen
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Lei Zhou
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Dehai Yu
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
| | - Ji-Fan Hu
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China.,Stanford University Medical School, Palo Alto Veterans Institute for Research, Palo Alto, USA
| | - Jiuwei Cui
- Cancer Center, The First Bethune Hospital of Jilin University, Changchun, China
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190
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Liao G, Chen F, Zhong J, Jiang X. MicroRNA‑539 inhibits the proliferation and invasion of bladder cancer cells by regulating IGF‑1R. Mol Med Rep 2018; 17:4917-4924. [PMID: 29393438 DOI: 10.3892/mmr.2018.8497] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 06/26/2017] [Indexed: 11/06/2022] Open
Abstract
Bladder cancer is the most frequent malignancy of the urinary tract and the seventh most common cancer worldwide. The abnormal expression of microRNAs has been frequently observed in various types of human cancers, including bladder cancer. In addition, an increasing body of evidence has demonstrated that microRNAs are potential targets for cancer diagnosis, treatments and prognosis. The aim of the present study was to investigate the expression patterns and potential roles of microRNA‑539 (miR‑539) in bladder cancer and its underlying mechanism. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was performed to detect miR‑539 expression in the bladder cancer tissues and cell lines. Following transfection, MTT and cell invasion assays were used to investigate the effects of miR‑539 overexpression or IGF1R underexpression on bladder cancer cell proliferation and invasion. Bioinformatics analysis, a luciferase reporter assay, RT‑qPCR and western blot analysis were utilized to determine the potential targets of miR‑539 in bladder cancer. The results revealed that miR‑539 levels were relatively decreased in bladder cancer tissues and cell lines when compared with those observed in the matched adjacent normal bladder tissues and normal bladder epithelial cell line. miR‑539 expression was associated with the tumor stage and lymph node metastasis of patients with bladder cancer. In addition, the expression of miR‑539 suppressed bladder cancer cell proliferation and invasion. Insulin like growth factor 1 receptor (IGF‑1R) was identified as a direct target of miR‑539, and miR‑539 was also observed to regulate the protein kinase B and extracellular signal‑regulated kinases signaling pathways. IGF‑1R was markedly upregulated in bladder cancer tissues and negatively associated with miR‑539 expression levels. Furthermore, IGF‑1R knockdown in bladder cancer cells significantly inhibited cell proliferation and invasion. To the best of our knowledge, these results demonstrated for the first time that miR‑539 may act as a tumor suppressor and serve important roles in tumorigenesis and progression of bladder cancer. Thus, miR‑539/IGF‑1R may be a potential therapeutic target for the treatment of bladder cancer.
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Affiliation(s)
- Guiyi Liao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Fangmin Chen
- Department of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
| | - Jinbiao Zhong
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Xinan Jiang
- Department of Urology, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, P.R. China
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191
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Schaub FX, Dhankani V, Berger AC, Trivedi M, Richardson AB, Shaw R, Zhao W, Zhang X, Ventura A, Liu Y, Ayer DE, Hurlin PJ, Cherniack AD, Eisenman RN, Bernard B, Grandori C. Pan-cancer Alterations of the MYC Oncogene and Its Proximal Network across the Cancer Genome Atlas. Cell Syst 2018; 6:282-300.e2. [PMID: 29596783 PMCID: PMC5892207 DOI: 10.1016/j.cels.2018.03.003] [Citation(s) in RCA: 233] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 02/06/2018] [Accepted: 03/02/2018] [Indexed: 12/19/2022]
Abstract
Although the MYC oncogene has been implicated in cancer, a systematic assessment of alterations of MYC, related transcription factors, and co-regulatory proteins, forming the proximal MYC network (PMN), across human cancers is lacking. Using computational approaches, we define genomic and proteomic features associated with MYC and the PMN across the 33 cancers of The Cancer Genome Atlas. Pan-cancer, 28% of all samples had at least one of the MYC paralogs amplified. In contrast, the MYC antagonists MGA and MNT were the most frequently mutated or deleted members, proposing a role as tumor suppressors. MYC alterations were mutually exclusive with PIK3CA, PTEN, APC, or BRAF alterations, suggesting that MYC is a distinct oncogenic driver. Expression analysis revealed MYC-associated pathways in tumor subtypes, such as immune response and growth factor signaling; chromatin, translation, and DNA replication/repair were conserved pan-cancer. This analysis reveals insights into MYC biology and is a reference for biomarkers and therapeutics for cancers with alterations of MYC or the PMN.
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Affiliation(s)
- Franz X Schaub
- Cure First, Seattle, WA, USA; SEngine Precision Medicine, Seattle, WA, USA
| | | | - Ashton C Berger
- The Eli and Edythe L. Broad Institute of Massachusetts Institute of Technology and Harvard University, Cambridge, MA, USA
| | | | | | - Reid Shaw
- SEngine Precision Medicine, Seattle, WA, USA
| | - Wei Zhao
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiaoyang Zhang
- Dana-Farber Cancer Institute, the Broad Institute of Harvard and MIT, and Harvard Medical School, Boston, MA, USA
| | - Andrea Ventura
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yuexin Liu
- Department of Systems Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Donald E Ayer
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Peter J Hurlin
- Shriners Hospitals for Children Research Center, Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Andrew D Cherniack
- Dana-Farber Cancer Institute, the Broad Institute of Harvard and MIT, and Harvard Medical School, Boston, MA, USA
| | - Robert N Eisenman
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Brady Bernard
- Institute for Systems Biology, Seattle, WA, USA; Providence Health and Services, Portland, OR, USA.
| | - Carla Grandori
- Cure First, Seattle, WA, USA; SEngine Precision Medicine, Seattle, WA, USA.
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192
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Wang Y, Cao Z, Wang L, Liu S, Cai J. Downregulation of microRNA-142-3p and its tumor suppressor role in gastric cancer. Oncol Lett 2018; 15:8172-8180. [PMID: 29849811 DOI: 10.3892/ol.2018.8330] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/23/2018] [Indexed: 12/17/2022] Open
Abstract
An increasing number of studies indicate that microRNAs (miRNAs) may exert an oncogenic or tumor suppressive role in diverse types of cancer. MicroRNA (miR)-142-3p has been detected to be downregulated in a number of cancer types, and it may function as a tumor suppressor. However, the expression profile and potential role of miR-142-3p in gastric cancer remain unknown. In the present study, the expression of miR-142-3p in numerous gastric cancer samples was investigated. It was observed that miR-142-3p was markedly downregulated in cancer tissues compared with normal tissues. Furthermore, a low expression level of miR-142-3p was associated with higher tumor stages. The overexpression of miR-142-3p was able to inhibit the proliferation, invasion and migration of gastric cancer cells. A further investigation into the mechanism underlying the effect of miR-142-3p identified cyclin T2 (CCNT2) as a target of miR-142-3p in gastric cancers. miR-142-3p may exert its tumor suppressor role partially by downregulating CCNT2. These results suggested that the abnormal downregulation of miR-142-3p and the subsequent increase in CCNT2 expression may have an important role in gastric cancer carcinogenesis.
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Affiliation(s)
- Yi Wang
- Department of VIP, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, P.R. China
| | - Zhidong Cao
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China.,Department of Orthopedics, The Emergency Medical Center of Chongqing, Chongqing 400014, P.R. China
| | - Lanlan Wang
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Siqi Liu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Jianqiang Cai
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, P.R. China
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193
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Ma Y, Chen Y, Lin J, Liu Y, Luo K, Cao Y, Wang T, Jin H, Su Z, Wu H, Chen X, Cheng J. Circulating miR-31 as an effective biomarker for detection and prognosis of human cancer: a meta-analysis. Oncotarget 2018; 8:28660-28671. [PMID: 28404921 PMCID: PMC5438681 DOI: 10.18632/oncotarget.15638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 01/29/2017] [Indexed: 12/26/2022] Open
Abstract
PURPOSE Circulating miR-31 was found to be associated with cancers detection and prognosis. The present meta-analysis aimed to explore the effect of circulating miR-31 on cancer detection and prognosis. METHOD The studies were accessed using multiple databases. RevMan5.3, Meta-DiSc 1.4, and STATA14.0 were used to estimate the pooled effects, heterogeneity among studies, and publication bias. RESULTS A total of 14 studies with 1397 cancer patients and 1039 controls were included. For the 12 prognostic tests, the adjusted pooled-AUC was 0.79 (95% CI: 0.73-0.86) as the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odd ratio (DOR) from 10 tests was 0.79 (95% CI: 0.76-0.82), 0.79 (95% CI: 0.76-0.82), 3.81 (95% CI: 2.90-5.01), 0.26 (95% CI: 0.20-0.35), and 16.81 (95% CI: 9.67-29.25), respectively. For the 5 prognosis analyses, the pooled HR (hazard ratio) of overall survival (OS) was 1.55 (95% CI 1.30-1.86) for high versus low circulating miR-31 expression. However, high expression of circulating miR-31 did not significantly increase the risk of poor differentiation (pooled OR=1.39, 95% CI: 0.56-3.47) and LNM (pooled OR=3.46, 95% CI: 0.96-12.42) in lung cancer. CONCLUSION Circulating miR-31 is an effective biomarker and could be used as a component of miRs signature for cancer detection and prognosis surveillance.
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Affiliation(s)
- Yingjun Ma
- Respiratory Medicine, Guangming District People's Hospital of Shenzhen, Shenzhen, P.R. China
| | - Yunfang Chen
- Pain Department, The Eight Affiliated Hospital, Sun Yat-sen University, ShenZhen, P.R. China
| | - Jinbo Lin
- Medical oncology, Longgang District Central Hospital of Shenzhen, Shenzhen, P.R. China
| | - Yi Liu
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Kai Luo
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, P.R. China
| | - Yong Cao
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Tieqiang Wang
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Hongwei Jin
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Zhan Su
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Haolin Wu
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Xiaoliang Chen
- Center for Chronic Disease Control and Prevention, Shenzhen Guangming District Center for Disease Control and Prevention, Shenzhen, P.R. China
| | - Jinquan Cheng
- Molecular Biology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen, P.R. China
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194
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Shi H, Shen H, Xu J, Zhao S, Yao S, Jiang N. MiR-143-3p suppresses the progression of ovarian cancer. Am J Transl Res 2018; 10:866-874. [PMID: 29636876 PMCID: PMC5883127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
MicroRNAs (miRNAs) are a class of naturally occurring, small, non-coding RNAs that target protein-coding mRNAs at the post-transcriptional level and participate in various biological processes. Our previous studies suggested that miR-143-3p functions as a tumor suppressor and has a role in the progression of ovarian cancer, in part through the regulation of the tumor promoter. In this study, we found that the mRNA expression level of miR-143-3p was significantly decreased in ovarian cancer tissues, in comparison with normal ovarian tissues by high-throughput miRNA profiling and quantitative RT-PCR. Secondly, we indicated that the up-regulation of miR-143-3p in the ovarian cancer cell lines SKOV3, ES2, and OVCAR3 significantly reduced their proliferation, migration, and invasion. Furthermore, miR-143-3p inhibited the growth of ovarian tumors in vivo in a xenograft experiment. In addition, miR-143-3p down-regulated the expression of transforming growth factor (TGF)-β-activated kinase 1 (TAK1) in human ovarian cancer cells. Therefore, our study indicates that miR-143-3p inhibited the proliferation, migration, and invasion of ovarian cancer cells in vitro, as well as ovarian tumorigenesis in vivo. This inhibitory effect may target TAK1, suggesting a potential application of the miR-143-3p-TAK1 pathway in the clinical diagnosis and treatment of ovarian cancer.
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Affiliation(s)
- Haijuan Shi
- The Second Affiliated Hospital of Guangxi Medical UniversityGuangxi, P. R. China
| | - Huimin Shen
- The First Affiliated Hospital, Sun Yat-sen UniversityGuangzhou 510080, Guangdong, P. R. China
| | - Juan Xu
- Jinhua Municipal Central Hospital, Jinhua Hospital of Zhejiang UniversityJinhua 321000, Zhejiang, P. R. China
| | - Shanshan Zhao
- The First Affiliated Hospital, Sun Yat-sen UniversityGuangzhou 510080, Guangdong, P. R. China
| | - Shuzhong Yao
- The First Affiliated Hospital, Sun Yat-sen UniversityGuangzhou 510080, Guangdong, P. R. China
| | - Nan Jiang
- The First Affiliated Hospital, Sun Yat-sen UniversityGuangzhou 510080, Guangdong, P. R. China
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195
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Yin C, Mou Q, Pan X, Zhang G, Li H, Sun Y. MiR-577 suppresses epithelial-mesenchymal transition and metastasis of breast cancer by targeting Rab25. Thorac Cancer 2018. [PMID: 29524309 PMCID: PMC5879053 DOI: 10.1111/1759-7714.12612] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background MicroRNAs can act as both tumor suppressor genes and oncogenes and participate in cell proliferation, metastasis, and apoptosis. Low levels of miR‐577 are found in several cancers, for example, thyroid carcinoma, glioblastoma, and hepatocellular carcinoma. The aim of this study was to investigate the effect of miR‐577 on breast cancer (BC). Methods The relative level of miR‐577 in 120 BC tissues and cells was detected by real‐time PCR. MDA‐MB‐231 cells with upregulated miR‐577 and MCF‐7 cells with downregulated miR‐577 were established. Transwell invasion assays were used to examine the invasiveness of cells. Epithelial‐mesenchymal transition (EMT) markers were evaluated by immunofluorescence and Western blot. Targeted combinations of miR‐577 and Rab25 were analyzed by luciferase assays. Xenograft models were used to examine the effect of miR‐577 on BC metastasis. Results MiR‐577 expression was significantly suppressed in BC tissues. Tumor size, tumor stage, and lymphatic metastasis were attributed to miR‐577 expression. Moreover, miR‐577 overexpression strongly inhibited the invasiveness and EMT of BC cells in vitro. MiR‐577 directly regulated Rab25 in BC. Rab25 upregulation by miR‐577 decreased the levels of E‐cadherin and increased the levels of Vimentin. Notably, Rab25 knockdown inhibited BC invasion; however, an increase in Rab25 counteracted the invasive effect of miR‐577 in BC. Conclusion Results indicated that miR‐577 suppressed EMT by inhibiting Rab25 expression in BC. MiR‐577 and Rab25 are considered potential targets of BC treatment.
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Affiliation(s)
- Chonggao Yin
- College of Nursing, Qingdao University, Qingdao, China.,College of Nursing, Weifang Medical University, Weifang, China
| | - Qingjie Mou
- Medicine Research Center, Weifang Medical University, Weifang, China
| | - Xinting Pan
- Intensive Care Unit, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Guoxin Zhang
- Medicine Research Center, Weifang Medical University, Weifang, China
| | - Hongli Li
- Medicine Research Center, Weifang Medical University, Weifang, China
| | - Yunbo Sun
- Intensive Care Unit, Affiliated Hospital of Qingdao University, Qingdao, China
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196
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Diao L, Su H, Wei G, Li T, Gao Y, Zhao G, Guo Z. Prognostic Value of microRNA 502 Binding Site SNP in the 3′-Untranslated Region of the SET8 Gene in Patients with Non-Hodgkin's Lymphoma. TUMORI JOURNAL 2018. [DOI: 10.1177/1660.18180] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lanping Diao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Huiling Su
- Department of Oncology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Guangchuan Wei
- Department of Ophthalmology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Tao Li
- Department of Epidemiology and Statistics, College of Public Health, Hebei Medical University, Shijiazhuang, China
| | - Yuhuan Gao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Guimin Zhao
- Department of Hematology, Hebei Medical University Affiliated North China Petroleum Bureau General Hospital, Cangzhou
| | - Zhanjun Guo
- Department of Gastroenterology and Hepatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang
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197
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miR-498 promotes cell proliferation and inhibits cell apoptosis in retinoblastoma by directly targeting CCPG1. Childs Nerv Syst 2018; 34:417-422. [PMID: 29247256 DOI: 10.1007/s00381-017-3622-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 10/12/2017] [Indexed: 12/26/2022]
Abstract
PURPOSE Retinoblastoma (Rb) is the most common intraocular tumor in children. MicroRNAs (miRNAs) play a crucial role in gene regulation and cell growth/apoptosis/differentiation. The current study aimed to investigate the role of miR-498 in Rb. METHODS Quantitative real-time polymerase chain reaction (QRT-PCR) was used to test mRNA level of miR-498. http://www.targetscan.org and http://www.microrna.org were applied to predict target of miR-498. Dual-luciferase reporter assay was applied to investigate if miR-498 targeted cell cycle progression 1 (CCPG1). Western blot (WB) was carried out to assess CCPG1 protein levels. 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT) assay was used to evaluate cell proliferation. Annexin-V Fluorescein (FITC) was adopted to explore cell apoptosis. RESULTS In Y79 cells, miR-498 was higher than in normal ARPE-19 cells. MiR-498 could recognize CCPG1-3' untranslated region (UTR). CCPG1 protein level was remarkably decreased when overexpressed miR-498, nevertheless, significantly increased when inhibiting miR-498. Y79 cells that were transfected with miR-498 mimics manifested notable cell apoptosis down-regulation and cell proliferation promotion; whereas, those transfected with miR-498 inhibitor displayed significant cell apoptosis up-regulation and cell proliferation inhibition compared with control group. CONCLUSION Taken together, miR-498 promotes cell proliferation and inhibits cell apoptosis in Rb by directly targeting CCPG1.
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198
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Shan W, Sun C, Zhou B, Guo E, Lu H, Xia M, Li K, Weng D, Lin X, Meng L, Ma D, Chen G. Role of Dicer as a prognostic predictor for survival in cancer patients: a systematic review with a meta-analysis. Oncotarget 2018; 7:72672-72684. [PMID: 27682871 PMCID: PMC5341936 DOI: 10.18632/oncotarget.12183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 09/12/2016] [Indexed: 01/17/2023] Open
Abstract
Objective The role of Dicer in the prognosis of cancer patients remains controversial. This systematic review is attempted to assess the influence of Dicer as a prognostic predictor for survival in diverse types of cancers. Methods Studies were selected as candidates if they published an independent evaluation of Dicer expression level together with the correlation with prognosis in cancers. Random-effect model was applied in this meta-analysis. Heterogeneity between studies was assessed by Q-statistic with P < 0.10 to be statistically significant. Publication bias was investigated using funnel plot and test with Begg's and Egger's test. P < 0.05 was regarded as statistically significant. Results 24 of 44 articles revealed low Dicer status as a predictor of poor prognosis. The aggregate result of overall survival (OS) indicated that low Dicer expression level resulted in poor clinical outcomes, and subgroup of IHC and RT-PCR method both revealed the same result. Overall analysis of progression-free survival (PFS) showed the same result as OS, and both the two subgroups divided by laboratory method revealed positive results. Subgroup analysis by tumor types showed low dicer levels were associated with poor prognosis in ovarian cancer (HR = 1.93, 95% CI: 1.19-3.15), otorhinolaryngological tumors (HR = 2.39, 95% CI: 1.70-3.36), hematological malignancies (HR = 2.45, 95% CI: 1.69-3.56) and neuroblastoma (HR = 4.03, 95% CI: 1.91-8.50). Conclusion Low Dicer status was associated with poor prognosis in ovarian cancer, otorhinolaryngological tumors and ematological malignancies. More homogeneous studies with high quality are needed to further confirm our conclusion and make Dicer a useful parameter in clinical application.
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Affiliation(s)
- Wanying Shan
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Chaoyang Sun
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Bo Zhou
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Ensong Guo
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Hao Lu
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Meng Xia
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Kezhen Li
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Danhui Weng
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Xingguang Lin
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Li Meng
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Ding Ma
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
| | - Gang Chen
- Cancer Biology Medical Centre, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R.China
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199
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Zhou K, Kos P, Yan Y, Xiong H, Min YL, Kinghorn KA, Minnig JT, Miller JB, Siegwart DJ. Intercalation-mediated nucleic acid nanoparticles for siRNA delivery. Chem Commun (Camb) 2018; 52:12155-12158. [PMID: 27711272 DOI: 10.1039/c6cc06024b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Tremendous effort has been made to improve stability and delivery efficacy of small RNA therapeutics. However, nearly all current nano-encapsulation carriers utilize the critical balance between only two interacting parameters: RNA-binding electrostatic interactions and nanoparticle-stabilizing hydrophobic interactions. We report the development of intercalation-meditated nucleic acid (IMNA) nanoparticles, which utilize intercalation as a third interaction to enhance small RNA delivery. This toolbox expansion of interaction parameters may inspire the use of additional forces in nanoparticle drug carriers to increase potency and stability.
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Affiliation(s)
- Kejin Zhou
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Petra Kos
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Yunfeng Yan
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Hu Xiong
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Yi-Li Min
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Karina A Kinghorn
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Jonathan T Minnig
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Jason B Miller
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
| | - Daniel J Siegwart
- The University of Texas Southwestern Medical Center, Simmons Comprehensive Cancer Center, Department of Biochemistry, Dallas, Texas 75390, USA.
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200
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Wang Y, Xu M, Yang Q. A six-microRNA signature predicts survival of patients with uterine corpus endometrial carcinoma. Curr Probl Cancer 2018; 43:167-176. [PMID: 29567372 DOI: 10.1016/j.currproblcancer.2018.02.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 02/06/2018] [Accepted: 02/13/2018] [Indexed: 12/27/2022]
Abstract
Uterine corpus endometrial carcinoma (UCEC) is one of the most common female gynecological malignant tumors that threaten women health seriously. MicroRNAs (miRNAs) has been proved to play critical roles in tumor pathogenesis and malignant progression. In this study, we aimed to explore a novel signature of microRNA expression for predicting the overall survival (OS) of patients with UCEC. The genome-wide miRNA expression profiles and relevant clinical characteristics of 348 patients with UCEC were downloaded from the Cancer Genome Atlas (TCGA) data portal and analyzed comprehensively. A total of 144 miRNAs were confirmed to be expressed differentially in tumor tissues. Among them, 6 miRNAs (hsa-mir-15a.MIMAT0000068, hsa-mir-142.MIMAT0000433, hsa-mir-142.MIMAT0000434, hsa-mir-3170.MIMAT0015045, hsa-mir-1976.MIMAT0009451, and hsa-mir-146a.MIMAT0000449) were validated to be significantly correlated with the OS of patients with UCEC. The risk indictor established by the 6-microRNA signature was proved be an independent prognostic factor (Hazard ratio = 0.391; 95% CI: 0.195-0.783; P = 0.008). In conclusion, we identified miRNAs that were correlated with the occurrence and progression of UCEC and established a 6-microRNA expression signature as a predictor for the OS of patients with UCEC.
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Affiliation(s)
- Yue Wang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun City, Jilin Province, China
| | - Mu Xu
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun City, Jilin Province, China
| | - Qing Yang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun City, Jilin Province, China.
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