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  • Open Access

    ARTICLE

    Knockdown of Upregulated Gene 11 (URG11) Inhibits Proliferation, Invasion, and b-Catenin Expression in Non-Small Cell Lung Cancer Cells

    Zhe-liang Liu*, Jiao Wu, Lin-xian Wang, Jin-feng Yang, Gao-ming Xiao*, Hui-ping Sun, Yue-jun Chen*

    Oncology Research, Vol.24, No.3, pp. 197-204, 2016, DOI:10.3727/096504016X14648701447850

    Abstract Upregulated gene 11 (URG11), a new gene upregulated by hepatitis B virus X protein, was found to be involved in the development and progression of several tumors. However, the role of URG11 in human non-small cell lung cancer (NSCLC) has not yet been determined. Therefore, the aim of the present study was to explore the role of URG11 in human NSCLC. Our results found that URG11 was highly expressed in human NSCLC tissues compared with matched normal lung tissues, and higher levels were found in NSCLC cell lines in comparison to the normal lung cell More >

  • Open Access

    ARTICLE

    Knockdown of PFTK1 Expression by RNAi Inhibits the Proliferation and Invasion of Human Non-Small Lung Adenocarcinoma Cells

    Mei-han Liu*, Shao-min Shi, Kai Li, En-qi Chen*

    Oncology Research, Vol.24, No.3, pp. 181-187, 2016, DOI:10.3727/096504016X14635761799038

    Abstract PFTK1 (PFTAIRE protein kinase 1), also named CDK14 (cyclin-dependent kinase 14), is a member of the cell division cycle 2 (CDC2)-related protein kinase family. It is highly expressed in several malignant tumors. However, the role of PFTK1 in the progression of non-small cell lung cancer (NSCLC) is still elusive. In this study, we aimed to explore the expression and function of PFTK1 in NSCLC cells. Our results showed that PFTK1 was significantly upregulated in human NSCLC cell lines. Silencing the expression of PFTK1 inhibited the proliferation of NSCLC cells. In addition, silencing the expression of More >

  • Open Access

    ARTICLE

    Knockdown of Long Noncoding RNA PCAT6 Inhibits Proliferation and Invasion in Lung Cancer Cells

    Li Wan1, Lin Zhang1, Kai Fan, Zai-Xing Cheng, Quan-Chao Sun, Jian-Jun Wang

    Oncology Research, Vol.24, No.3, pp. 161-170, 2016, DOI:10.3727/096504016X14618564639178

    Abstract As a newly identified oncogenic long noncoding RNA (lncRNA), prostate cancer-associated transcript 6 (PCAT6) promoted cellular proliferation and colony formation of prostate cancer. However, the biological function of PCAT6 in lung cancer is still largely unknown. In this study, we found that PCAT6 is significantly increased in cancer tissues compared to normal tissues and positively correlates with metastasis of lung cancer in patients. We then examined PCAT6 expression in lung cancer cell lines and identified that PCAT6 expression was significantly elevated in lung cancer cells compared to normal human bronchial epithelial (NHBE) cells, especially in… More >

  • Open Access

    ARTICLE

    Knockdown of HPIP Inhibits the Proliferation and Invasion of Head-and-Neck Squamous Cell Carcinoma Cells by Regulating PI3K/Akt Signaling Pathway

    Yangjing Chen, Ruimin Zhao, Qian Zhao, Yuan Shao, Shaoqiang Zhang

    Oncology Research, Vol.24, No.3, pp. 153-160, 2016, DOI:10.3727/096504016X14612603423476

    Abstract Hematopoietic pre-B-cell leukemia transcription factor (PBX)-interacting protein (HPIP/PBXIP1) is a corepressor for the transcription factor PBX. Previous studies showed that HPIP is frequently overexpressed in many tumors. However, the role of HPIP in head-and-neck squamous cell carcinoma (HNSCC) has not yet been determined. Thus, we decided to investigate the effects and mechanisms of HPIP in HNSCC. Our results demonstrated that HPIP is highly expressed in human HNSCC cell lines and provides the first evidence that knockdown of HPIP obviously inhibits proliferation and migration/invasion in HNSCC cells in vitro, as well as inhibits tumor growth in More >

  • Open Access

    ARTICLE

    Knockdown of PFTAIRE Protein Kinase 1 (PFTK1) Inhibits Proliferation, Invasion, and EMT in Colon Cancer Cells

    Jiankang Zhu, Chongzhong Liu, Fengyue Liu, Yadong Wang, Min Zhu

    Oncology Research, Vol.24, No.3, pp. 137-144, 2016, DOI:10.3727/096504016X14611963142218

    Abstract PFTK1 is a member of the cyclin-dependent kinase (CDK) family and is upregulated in many types of tumors. However, its expression and role in colon cancer remain unclear. In this study, we aimed to investigate the expression and function of PFTK1 in colon cancer. Our results showed that PFTK1 was highly expressed in colon cancer cell lines. The in vitro experiments demonstrated that knockdown of PFTK1 inhibited the proliferation, migration, and invasion of colon cancer cells as well as the epithelial-to-mesenchymal transition (EMT) progress. Furthermore, knockdown of PFTK1 suppressed the expression of Shh as well More >

  • Open Access

    ARTICLE

    miR-1193 Suppresses the Proliferation and Invasion of Human T-Cell Leukemia Cells Through Directly Targeting the Transmembrane 9 Superfamily 3 (TM9SF3)

    Liyun Shen, Xingjun Du, Hongyan Ma, Shunxi Mei

    Oncology Research, Vol.25, No.9, pp. 1643-1651, 2017, DOI:10.3727/096504017X14908284471361

    Abstract miRNAs have been involved in various types of cancer, including T-cell leukemia. In this study, the role of miR-1193 in the proliferation and invasion of T-cell leukemia cells was explored. First, we found that miR-1193 was sharply downregulated in T-cell leukemia cells when compared with normal T cells. miR-1193 markedly decreased the proliferation and invasion in Jurkat human T-cell leukemia cells. Transmembrane 9 superfamily 3 (TM9SF3) was then predicted to be a potential target gene of miR-1193, the levels of which displayed a strongly negative correlation with miR-1193 levels in T-cell leukemia patients. We confirmed More >

  • Open Access

    ARTICLE

    Inhibition of ERK1/2 Signaling Impairs the Promoting Effects of TGF-β1 on Hepatocellular Carcinoma Cell Invasion and Epithelial–Mesenchymal Transition

    Ling Liu, Nianfeng Li, Qi Zhang, Jixiang Zhou, Ling Lin, Xinxin He

    Oncology Research, Vol.25, No.9, pp. 1607-1616, 2017, DOI:10.3727/096504017X14938093512742

    Abstract Transforming growth factor-b (TGF-β) and ERK signaling have been implicated in various human cancers including hepatocellular carcinoma, but the underlying mechanism remains largely unclear. In this study, we aimed to explore the role of ERK1/2 in the regulation of TGF-β’s promoting and suppressive activities in HCC cells. Our data showed that treatment with TGF-β1 enhanced invasion and epithelial–mesenchymal transition (EMT) in HCC HepG2 cells, accompanied with increased MMP9 production and activation of Smad2/3 and ERK1/2, but inhibited tumor cell proliferation. These effects were eliminated by treatment with SB431542, a TGF-β inhibitor. Afterward, treatment with the… More >

  • Open Access

    ARTICLE

    Knockdown of E2F3 Inhibits Proliferation, Migration, and Invasion and Increases Apoptosis in Glioma Cells

    Zhi-Gang Shen*1, Xiao-Zhou Liu†1, Chang-Xiu Chen, Jing-Min Lu§

    Oncology Research, Vol.25, No.9, pp. 1555-1566, 2017, DOI:10.3727/096504017X14897158009178

    Abstract E2F3a, as a member of the E2F family, is essential for cell division associated with the progression of many cancers. However, the biological effect of E2F3a on glioma is not understood as well. To investigate the functional mechanism of E2F3a in glioma, we examined the expression of E2F3a in glioma tissue and cell lines. We found that E2F3a was upregulated in glioma tissue compared with adjacent tissue, and this was associated with a poor survival rate. E2F3a was highly expressed in glioma cell lines compared with normal HEB cell lines. Knockdown of E2F3a significantly inhibited… More >

  • Open Access

    ARTICLE

    MicroRNA-342-3p Inhibits the Proliferation, Migration, and Invasion of Osteosarcoma Cells by Targeting Astrocyte-Elevated Gene-1 (AEG-1)

    Shaokun Zhang*, Lidi Liu*, Zhenshan Lv*, Qiao Li*, Weiquan Gong*, Hong Wu

    Oncology Research, Vol.25, No.9, pp. 1505-1515, 2017, DOI:10.3727/096504017X14886485417426

    Abstract Recent studies suggest that microRNAs (miRNAs) are critical regulators in many types of cancer, including osteosarcoma. miR-342-3p has emerged as an important cancer-related miRNA in several types of cancers. However, the functional significance of miR-342-3p in osteosarcoma is unknown. The aims of this study were to investigate whether miR-342-3p is dysregulated in osteosarcoma and to explore the biological function of miR-342-3p in regulating cellular processes of osteosarcoma cells. We found that miR-342-3p expression was significantly decreased in osteosarcoma tissues and cell lines. Overexpression of miR-342-3p inhibits the proliferation, migration, and invasion of osteosarcoma cells. In… More >

  • Open Access

    ARTICLE

    Overexpression of T-box Transcription Factor 5 (TBX5) Inhibits Proliferation and Invasion in Non-Small Cell Lung Carcinoma Cells

    Ruoting Ma*†, Yu Yang*, Qiuyun Tu, Ke Hu

    Oncology Research, Vol.25, No.9, pp. 1495-1504, 2017, DOI:10.3727/096504017X14883287513729

    Abstract T-box transcription factor 5 (TBX5), a member of the conserved T-box transcription factor family that functions in organogenesis and embryogenesis, has recently been identified as a critical player in cancer development. The aim of this study was to determine the role of TBX5 in non-small cell lung carcinoma (NSCLC). Immunohistochemistry was used to detect the correlation between levels of TBX5 and clinicopathological features of NSCLC patients in tissue microarray. Expression of TBX5 in NSCLC tissues and cell lines was evaluated by quantitative PCR and Western blot. The role of TBX5 in regulating proliferation, colony formation,… More >

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