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  • Open Access

    ARTICLE

    lncRNA BCAR4 Increases Viability, Invasion, and Migration of Non-Small Cell Lung Cancer Cells by Targeting Glioma-Associated Oncogene 2 (GLI2)

    Hongliang Yang*1, Lei Yan†1, Kai Sun, Xiaodong Sun, Xudong Zhang,§ Kerui Cai, Tiejun Song*

    Oncology Research, Vol.27, No.3, pp. 359-369, 2019, DOI:10.3727/096504018X15220594629967

    Abstract This study aimed to explore the effects of lncRNA BCAR4 on the viability and aggressiveness of non-small cell lung cancer (NSCLC) cells. qRT-PCR was used to determine the expression of BCAR4 and GLI2 downstream genes in NSCLC tissues and cell lines. Chromatin isolation by RNA purification (CHIRP) and Western blot were employed to measure the expression of the GLI2 downstream proteins. Ki-67 expression in nude mice tumors was tested by immunohistochemistry. MTT assay, wound healing assay, and Transwell assay were used to assess NSCLC cell viability and aggressiveness, respectively. Tumor xenograft was conducted to determine the… More >

  • Open Access

    ARTICLE

    lncRNA MNX1-AS1 Promotes Glioblastoma Progression Through Inhibition of miR-4443

    Yan Gao, Yongchuan Xu, Jue Wang, Xue Yang, Lulu Wen, Juan Feng

    Oncology Research, Vol.27, No.3, pp. 341-347, 2019, DOI:10.3727/096504018X15228909735079

    Abstract Long noncoding RNAs (lncRNAs) have been acknowledged as important regulators in various human cancers. lncRNA MNX1-AS1 has been shown to be an oncogene in epithelial ovarian cancer. However, the function of MNX1-AS1 in glioblastoma (GBM) remains largely unknown. Here we found that the expression of MNX1-AS1 was significantly upregulated in GBM tissues and cell lines. Knockdown of MNX1-AS1 significantly inhibited the proliferation, migration, and invasion of GBM cells. In terms of mechanism, we found that MNX1-AS1 could bind to miR-4443 in GBM cells. Overexpression of miR-4443 significantly inhibited the expression of MNX1-AS1 and vice versa. More >

  • Open Access

    ARTICLE

    Knockdown of lncRNA PVT1 Inhibits Glioma Progression by Regulating miR-424 Expression

    Yanjie Han*1, Xinxin Li*1, Fei He†1, Jiliang Yan*, Chunyan Ma*, Xiaoli Zheng, Jinli Zhang*, Donghui Zhang*, Cuiping Meng*, Zhen Zhang*, Xinying Ji§

    Oncology Research, Vol.27, No.6, pp. 681-690, 2019, DOI:10.3727/096504018X15424939990246

    Abstract Plasmacytoma variability translocation 1 (PVT1), an oncogene, has been reported to be highly expressed in many tumors, including human glioma, gastric cancer, and non-small cell lung cancer. Functionally, it could also regulate the development of tumor cells. However, its specific roles and pathogenesis in human gliomas are still not clear. This study investigated the function and mechanism of PVT1 knockdown in the proliferation and malignant transformation of human gliomas. We first examined the expression levels of PVT1 and miR- 424 in human glioma tissues and cell lines. We also used gene manipulation techniques to explore… More >

  • Open Access

    ARTICLE

    The Interaction Between lncRNA SNHG1 and miR-140 in Regulating Growth and Tumorigenesis via the TLR4/NF-kB Pathway in Cholangiocarcinoma

    Zhen Li*1, Xin Li*1, Xiao Du, Henghui Zhang, Zhengyang Wu*, Kewei Ren*, Xinwei Han*

    Oncology Research, Vol.27, No.6, pp. 663-672, 2019, DOI:10.3727/096504018X15420741307616

    Abstract Cholangiocarcinoma (CCA) is the second most common primary hepatobiliary carcinoma. The long noncoding RNA (lncRNA) small nucleolar RNA host gene 1 (SNHG1) has been reported to contribute to the progression of multiple cancers. Nonetheless, the functions and hidden mechanism of SNHG1 remain unclear in CCA. In this study, the SNHG1 levels were boosted in CCA cell lines, and knockdown of SNHG1 repressed CCA cell proliferation and invasion in vitro. The data also demonstrated that miR-140 could act as a target of SNHG1 in CCA and inhibited CCA cell proliferation and invasion, whereas the inhibition effects More >

  • Open Access

    ARTICLE

    Silencing of lncRNA AFAP1-AS1 Inhibits Cell Growth and Metastasis in Clear Cell Renal Cell Carcinoma

    Zhongyi Mu*†1, Dan Dong*1, Ning Wei‡§, Mingli Sun, Wei Wang*, Yue Shao*, Jian Gao*, Ping Yin*, Chenghai Zhao*

    Oncology Research, Vol.27, No.6, pp. 653-661, 2019, DOI:10.3727/096504018X15420748671075

    Abstract The lncRNA AFAP1-AS1, oriented from an antisense direction to the protein-coding gene AFAP1 in the opposite strand, was upregulated in a variety of tumors and associated with poor prognosis, including lung cancer, breast cancer, ovarian cancer, and so on. However, the biological role of AFAP1-AS1 in clear cell renal cell carcinoma (ccRCC) is still unknown. We observed that AFAP1-AS1 expression was significantly upregulated in ccRCC tissues and that patients with high-level expression of AFAP1-AS1 had a shorter overall survival. Knockdown of AFAP1-AS1 markedly suppressed the progression of proliferation, invasion, migration, and EMT in ccRCC cells.… More >

  • Open Access

    ARTICLE

    Hsa_circ_0003998 Promotes Chemoresistance via Modulation of miR-326 in Lung Adenocarcinoma Cells

    Wanjun Yu*, Weidong Peng*, Hanyun Sha, Jipeng Li

    Oncology Research, Vol.27, No.5, pp. 623-628, 2019, DOI:10.3727/096504018X15420734828058

    Abstract Circular RNAs (circRNAs) represent a new class of noncoding RNAs that is involved in the development of cancer. However, little is known about their role in chemoresistance. In the present study, we found that hsa_circ_0003998 expression levels in lung adenocarcinoma (LAD) tissues and docetaxel-resistant cell lines (A549/DTX and H1299/DTX) were upregulated. Knockdown of hsa_circ_0003998 decreased chemoresistance, inhibited proliferation, and enhanced apoptosis in docetaxel-resistant LAD cells. Moreover, by using bioinformatics and luciferase reporter assays, we found that miR-326 was a direct target of hsa_circ_0003998. Functional analysis revealed that miR-326 mediated the effect of hsa_circ_0003998 on chemosensitivity. More >

  • Open Access

    ARTICLE

    Inhibition of Long Noncoding RNA CRNDE Increases Chemosensitivity of Medulloblastoma Cells by Targeting miR-29c-3p

    Xiao-hui Sun*, Wen-jie Fan, Zong-jian An, Yong Sun

    Oncology Research, Vol.28, No.1, pp. 95-102, 2020, DOI:10.3727/096504019X15742472027401

    Abstract Long noncoding RNA CRNDE (CRNDE) recently emerged as a carcinogenic promoter in various cancers including medulloblastoma. However, the functions and molecular mechanisms of CRNDE to the acquired drug resistance of medulloblastoma are still unclear. The transcript levels of CRNDE were examined in four medulloblastoma cell lines exposed to cisplatin treatment, and IC50 values were calculated. Effects of CRNDE knockdown or miR-29c-3p overexpression on cell viability, colony formation, apoptosis, migration, and invasion were assessed using the CCK-8, colony formation assay, flow cytometry, and Transwell assays, respectively. RNA pulldown and RNA-binding protein immunoprecipitation (RIP) were performed to confirm… More >

  • Open Access

    ARTICLE

    The lncRNA FEZF1-AS1 Promotes the Progression of Colorectal Cancer Through Regulating OTX1 and Targeting miR-30a-5p

    Jing Li*†, Lian-mei Zhao, Cong Zhang, Meng Li§, Bo Gao, Xu-hua Hu, Jian Cao, Gui-ying Wang

    Oncology Research, Vol.28, No.1, pp. 51-63, 2020, DOI:10.3727/096504019X15619783964700

    Abstract Long noncoding RNAs (lncRNAs) participate in and regulate the biological process of colorectal cancer (CRC) progression. Our previous research identified differentially expressed lncRNAs in 10 CRC tissues and 10 matched nontumor tissues by next-generation sequencing (NGS). In this study, we identified an lncRNA, FEZF1 antisense RNA 1 (FEZF1-AS1), and further explored its function and mechanism in CRC. We verified that FEZF1-AS1 is highly expressed in CRC tissues and cell lines. Through functional experiments, we found that reduced levels of FEZF1-AS1 significantly suppressed CRC cell migration, invasion, and proliferation and inhibited tumor growth in vivo. Mechanistically,… More >

  • Open Access

    ARTICLE

    RPSAP52 lncRNA Inhibits p21Waf1/CIP Expression by Interacting With the RNA Binding Protein HuR

    Daniela D’Angelo*, Claudio Arra, Alfredo Fusco*

    Oncology Research, Vol.28, No.2, pp. 191-201, 2020, DOI:10.3727/096504019X15761465603129

    Abstract Long noncoding RNAs have been recently demonstrated to have an important role in fundamental biological processes, and their deregulated expression has been found in several human neoplasias. Our group has recently reported a drastic overexpression of the long noncoding RNA (lncRNA) RPSAP52 (ribosomal protein SA pseudogene 52) in pituitary adenomas. We have shown that this lncRNA increased cell proliferation by upregulating the expression of the chromatinic proteins HMGA1 and HMGA2, functioning as a competing endogenous RNA (ceRNA) through competitively binding to microRNA-15a (miR-15a), miR-15b, and miR-16. The aim of this work was to identify further… More >

  • Open Access

    ARTICLE

    lncRNA HOXA11-AS Promotes Proliferation and Migration via Sponging miR-155 in Hypopharyngeal Squamous Cell Carcinoma

    Jianing Xu*†, Qiyu Bo, Xiang Zhang§, Dapeng Lei, Jue Wang*, Xinliang Pan

    Oncology Research, Vol.28, No.3, pp. 311-319, 2020, DOI:10.3727/096504020X15801233454611

    Abstract Hypopharyngeal squamous cell carcinoma (HSCC) remains one of the most lethal malignancies in the head and neck. Long noncoding RNA (lncRNA) HOXA11-AS is proven to function as an oncogene and a therapeutic target in various tumors. Our previous study and others have demonstrated that HOXA11-AS is one of the most upregulated lncRNAs in HSCC. However, the role of HOXA11-AS in HSCC has not yet been identified. The current study demonstrated that the expression of HOXA11-AS was significantly upregulated in HSCC tumors and was positively associated with lymph node metastasis. Moreover, functional experiments revealed that HOXA11-AS More >

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