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Search Results (29)
  • Open Access

    ARTICLE

    The Regulatory Roles of microRNAs and Associated Target Genes during Early Somatic Embryogenesis in Liriodendron Sino-Americanum

    Dan Wang1, Fengjuan Lu1, Pengkai Wang1, Jiaji Zhang1, Lu Lu1, Yan Zhen1, Ye Lu1, Tielong Cheng2, Jisen Shi1,*, Jinhui Chen1,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.5, pp. 1445-1463, 2021, DOI:10.32604/phyton.2021.015499 - 27 May 2021

    Abstract Somatic cells respond to considerable stress, and go through a series of phytohormone pathways, then forming an embryo. The developmental process is recorded as somatic embryogenesis (SE). One of the key components regulating SE are the microRNAs (miRNAs). Despite previous studies, it is still not clear exactly how miRNAs exert their function of regulating targets during conditionally activated early SE. Here, we use Liriodendron sino-americanum as a model system and perform a combined analysis of microfluidic chips and degradome sequencing to study this process. We identified a total of 386 conserved miRNAs and 153 novel miRNAs… More >

  • Open Access

    ARTICLE

    Long Noncoding RNA WEE2-AS1 Plays an Oncogenic Role in Glioblastoma by Functioning as a Molecular Sponge for MicroRNA-520f-3p

    Hengzhou Lin, Dahui Zuo, Jiabin He, Tao Ji, Jianzhong Wang, Taipeng Jiang

    Oncology Research, Vol.28, No.6, pp. 591-603, 2020, DOI:10.3727/096504020X15982623243955

    Abstract The long noncoding RNA WEE2 antisense RNA 1 (WEE2-AS1) plays an oncogenic role in hepatocellular carcinoma and triple negative breast cancer progression. In this study, we investigated the expression and roles of WEE2-AS1 in glioblastoma (GBM). Furthermore, the molecular mechanisms behind the oncogenic actions of WEE2-AS1 in GBM cells were explored in detail. WEE2-AS1 expression was detected using quantitative real-time polymerase chain reaction. The roles of WEE2-AS1 in GBM cells were evaluated by the cell counting kit-8 assay, flow cytometric analysis, Transwell cell migration and invasion assays, and tumor xenograft experiments. WEE2-AS1 expression was evidently… More >

  • Open Access

    CORRECTION

    miR-132 Targets FOXA1 and Exerts Tumor-Suppressing Functions in Thyroid Cancer

    Xin Chen*, Mingzhe Li, Hongwei Zhou*, Li Zhang*

    Oncology Research, Vol.28, No.9, pp. 965-967, 2020, DOI:10.3727/096504022X16414984936764

    Abstract MicroRNA-132 (miR-132) has been demonstrated to be a tumor suppressor in several types of tumors. However, the expression and the role of miR-132 in human thyroid cancer are still poorly understood. The aim of the present study was to examine the potential roles and molecular mechanism of miR-132 in thyroid cancer. We found that miR-132 expression levels were significantly downregulated in thyroid cancer tissues and cell lines. Function assays showed that overexpression of miR-132 in TPC1 cells inhibited cell proliferation, migration, and invasion. Forkhead box protein A1 (FOXA1) was identified as a direct target of More >

  • Open Access

    CORRECTION

    MicroRNA-139-5p Inhibits Cell Proliferation and Invasion by Targeting RHO-Associated Coiled-Coil-Containing Protein Kinase 2 in Ovarian Cancer

    Yanli Wang*, Jia Li, Chunling Xu, Xiaomeng Zhang

    Oncology Research, Vol.28, No.7-8, pp. 823-825, 2020, DOI:10.3727/096504021X16240202940021

    Abstract Increasing evidence indicates that the dysregulation of microRNAs is associated with the development and progression of various cancers. MicroRNA-139-5p (miR-139-5p) has been reported to have a tumor suppressive role in many types of cancers. The role of miR-139-5p in ovarian cancer (OC) is poorly understood. The purpose of the present study was to explore the expression of miR-139-5p and its function in OC. The results showed that miR-139-5p expression was markedly downregulated in OC tissues and cell lines. In addition, underexpression of miR-139-5p was significantly associated with FIGO stage, lymph mode metastasis, and poor overall… More >

  • Open Access

    ARTICLE

    High-Throughput MicroRNA and mRNA Sequencing Reveals that MicroRNAs May Be Involved in Pectinesterase-Mediated Cold Resistance in Potato

    Chongchong Yan1, Qianqian Wang1, Nan Zhang2, Jiajia Wang1, Xuexiang Ren1, Bingjie Xue3, Xiaojing Pu4, Zhihong Xu4, Huajun Liao1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 561-586, 2020, DOI:10.32604/phyton.2020.010322 - 22 June 2020

    Abstract Since potato cultivars are sensitive to low temperature, cold injury severely affects the geographical distribution and yield of potato. Although some miRNAs have been identified in response to cold stress in plants, there is no report about the role of miRNAs in the response to cold stress in potato. Here, via high throughput sequencing, we described the profiling of cold stress response to miRNA and mRNA in potato. Two small RNA and six mRNA libraries were constructed and sequenced. 296 known and 211 novel miRNAs were identified, in which 34 miRNAs in Cold Group (CG)… More >

  • Open Access

    ARTICLE

    MicroRNA-338-3p Inhibits Proliferation and Promotes Apoptosis of Multiple Myeloma Cells Through Targeting Cyclin-Dependent Kinase 4

    Yang Cao*, Xu Shi, Yingmin Liu, Ren Xu§, Qing Ai*

    Oncology Research, Vol.27, No.1, pp. 117-124, 2019, DOI:10.3727/096504018X15213031799835

    Abstract MicroRNA-338-3p (miR-338-3p) has been reported to be a tumor suppressor in multiple cancer types. However, the biological role of miR-338-3p and its underlying mechanism in multiple myeloma (MM) remain unclear. In the present study, we investigated the biological role and potential of miR-338-3p in MM. We found that miR-338-3p was significantly decreased in newly diagnosed and relapsed MM tissues and cell lines. Overexpression of miR-338-3p in MM cells significantly inhibited proliferation and promoted apoptosis, caspase 3, and caspase 8 activity. Bioinformatics algorithm analysis predicted that cyclin-dependent kinase 4 (CDK4) was a direct target of miR-338-3p, More >

  • Open Access

    ARTICLE

    miR-132 Targets FOXA1 and Exerts Tumor-Suppressing Functions in Thyroid Cancer

    Xin Chen*, Mingzhe Li, Hongwei Zhou*, Li Zhang*

    Oncology Research, Vol.27, No.4, pp. 431-437, 2019, DOI:10.3727/096504018X15201058168730

    Abstract MicroRNA-132 (miR-132) has been demonstrated to be a tumor suppressor in several types of tumors. However, the expression and the role of miR-132 in human thyroid cancer are still poorly understood. The aim of the present study was to examine the potential roles and molecular mechanism of miR-132 in thyroid cancer. We found that miR-132 expression levels were significantly downregulated in thyroid cancer tissues and cell lines. Function assays showed that overexpression of miR-132 in TPC1 cells inhibited cell proliferation, migration, and invasion. Forkhead box protein A1 (FOXA1) was identified as a direct target of More >

  • Open Access

    ARTICLE

    Long Noncoding RNA H19 Promotes Proliferation and Invasion in Human Glioma Cells by Downregulating miR-152

    Lei Chen, Yuhai Wang, Jianqing He, Chunlei Zhang, Junhui Chen, Dongliang Shi

    Oncology Research, Vol.26, No.9, pp. 1419-1428, 2018, DOI:10.3727/096504018X15178768577951

    Abstract miR-152 and lncRNA H19 have been frequently implicated in various cellular processes including cell proliferation, invasion, angiogenesis, and apoptosis. However, the interaction between miR-152 and H19 in glioma has never been reported. RT-qPCR was used to examine the expression of miR-152 and H19 in human glioma cell lines and normal human astrocytes (NHAs). The interaction between miR-152 and lncRNA H19 was assessed by dual-luciferase reporter assay. MTT assay and Transwell invasion assay were used to determine the proliferation and invasion of U251 and U87 cells. A xenograft tumor experiment was performed to confirm the role… More >

  • Open Access

    ARTICLE

    miR-522-3p Promotes Tumorigenesis in Human Colorectal Cancer via Targeting Bloom Syndrome Protein

    Feng Shuai*, Bo Wang, Shuxiao Dong

    Oncology Research, Vol.26, No.7, pp. 1113-1121, 2018, DOI:10.3727/096504018X15166199939341

    Abstract miR-522-3p is known to degrade bloom syndrome protein (BLM) and enhance expression of other proto-oncogenes, leading to tumorigenesis. This study aimed to investigate the molecular mechanisms of miR-522-3p in human colorectal cancer (CRC) cells. Expressions of miR-522-3p in CRC and adjacent tissues, as well as in normal human colon epithelial cell line (FHC) and five CRC cell lines, were detected. Human CRC cell lines, HCT-116 and HT29, were transfected with miR-522-3p mimic, inhibitor, or scrambled controls. Then cell viability, apoptosis, cell cycle progression, and the expressions of c-myc, cyclin E, CDK2, and BLM were assessed.… More >

  • Open Access

    ARTICLE

    MicroRNA-519d-3p Inhibits Proliferation and Promotes Apoptosis by Targeting HIF-2α in Cervical Cancer Under Hypoxic Conditions

    Lixia Jiang*1, Shaohua Shi†1, Qiaofa Shi, Huijuan Zhang*, Yu Xia§, Tianyu Zhong*

    Oncology Research, Vol.26, No.7, pp. 1055-1062, 2018, DOI:10.3727/096504018X15152056890500

    Abstract HIF-2α knockdown inhibits proliferation, arrests the cell cycle, and promotes apoptosis and autophagy under hypoxic conditions in cervical cancer. However, the upstream regulatory mechanism of HIF-2α expression is unclear. MicroRNAs (miRNAs) degrade target mRNAs by binding to the 3'-untranslated region of mRNAs. In this study, we investigated the role of miRNAs in the regulation of HIF-2α expression in cervical cancer under hypoxic conditions. miRNAs regulating HIF-2α expression were predicted using TargetScan and miRanda and were determined in cervical cancer under hypoxic conditions by qRT-PCR. Additionally, the targeted regulation of HIF-2α by miR-519d-3p was evaluated by… More >

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