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 >

Nan Qin^*1, Gui-Feng Tong^†1, Li-Wei Sun^‡, Xiao-Lin Xu^†

Oncology Research, Vol.25, No.9, pp. 1471-1478, 2017, DOI:10.3727/096504017X14886689179993

Abstract Glioma, with varying malignancy grades and histological subtypes, is the most common primary brain tumor in adults. Long noncoding RNAs (lncRNAs) are non-protein-coding transcripts and have been proven to play an important role in tumorigenesis. Our study aims to elucidate the combined effect of lncRNA maternally expressed gene 3 (MEG3) and microRNA-19a (miR-19a) in human glioma U87 and U251 cell lines. Real-time PCR revealed that MEG3 was downregulated and miR-19a was upregulated in malignant glioma tissues and cell lines. Bioinformatics analyses (TargetScan, miRanda, and starBase V2.0) showed that phosphatase and tensin homolog (PTEN) is a… More >

Boda Ying^*, Hong Huang^†, Hongfei Li^*, Meng Song^*, Sizhan Wu^*, Hongliang Ying^†

Oncology Research, Vol.25, No.9, pp. 1463-1470, 2017, DOI:10.3727/096504017X14878518291077

Abstract Procaine (PCA) is a conventional chemotherapeutic agent for osteosarcoma. Recent studies have proposed that the growth-inhibitory effect of PCA is through regulation of microRNAs (miRNAs). miR-133b has been proven to be a tumor suppressor in osteosarcoma, but whether it is involved in the antitumor effects of PCA on osteosarcoma has not been investigated. In this study, we aimed to explore the effects of PCA on osteosarcoma MG63 cells by regulation of miR-133b, as well as its underlying mechanisms. MG63 cells were treated with different concentrations of PCA, and cell viability, apoptosis, and miR-133b expression were… More >

Rui Jiang^*, Chao Zhang^†, Guangyao Liu^*, Rui Gu^*, Han Wu^*

Oncology Research, Vol.25, No.8, pp. 1409-1419, 2017, DOI:10.3727/096504017X14882829077237

Abstract Osteosarcoma is the most common primary bone malignancy manifested predominantly in children and young adults. Studies indicate that miR-107 is involved in the pathogenesis of osteosarcoma and that tropomyosin 1 (TPM1) acts as a tumor suppressor in many types of cancer. In this study, we analyzed the effect of miR-107 on human osteosarcoma cells and investigated the mechanism in which TPM1 is involved. miR-107 expression in human osteosarcoma tissues and cells was analyzed in quantitative real-time PCR (qRT-PCR). Human osteosarcoma (U2OS) cells were transfected with miR-107 mimic, inhibitor, or scramble controls to evaluate the effect… More >

Kairui Liu^*, Xiaolin Wu^*, Xian Zang^†, Zejian Huang^*, Zeyu Lin^‡, Wenliang Tan^*, Xiang Wu^*, Wenrou Hu^*, Baoqi Li^*, Lei Zhang^*

Oncology Research, Vol.25, No.8, pp. 1329-1340, 2017, DOI:10.3727/096504017X14876227286564

Abstract Overexpression of the tumor necrosis factor receptor-associated factor 4 (TRAF4) has been detected in many cancer types and is considered to foster tumor progression. However, the role of TRAF4 in hepatocellular carcinoma (HCC) remains elusive. In this study, we found that TRAF4 was highly expressed in HCC cell lines and HCC tissues compared with normal liver cell lines and adjacent noncancerous tissues. TRAF4 overexpression in HCC tissues was correlated with tumor quantity and vascular invasion. In vitro studies showed that TRAF4 was associated with HCC cell migration and invasion. An in vivo study verified that More >

Junfeng Zhang^*1, Kun Xu^†1, Lili Shi^*, Li Zhang^*, Zhaohua Zhao^*, Hao Xu^*, Fei Liang^*, Hongbo Li^*, Yan Zhao^*, Xi Xu^*, Yingfang Tian^‡

Oncology Research, Vol.25, No.8, pp. 1317-1327, 2017, DOI:10.3727/096504017X14874323871217

Abstract Increasing studies have suggested that microRNAs (miRNAs) are involved in the development of gliomas. MicroRNA-216a has been reported to be a tumor-associated miRNA in many types of cancer, either as an oncogene or as a tumor suppressor. However, little is known about the function of miR-216a in gliomas. The present study was designed to explore the potential role of miR-216a in gliomas. We found that miR-216a was significantly decreased in glioma tissues and cell lines. Overexpression of miR-216a significantly suppressed the proliferation, migration, and invasion of glioma cells. Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) More >

Jin Wang^*, Wenquan Pang^*, Zhenbai Zuo^*, Wenyan Zhang^*, Weidong He^†

Oncology Research, Vol.25, No.8, pp. 1297-1304, 2017, DOI:10.3727/096504017X14873430389189

Abstract Spinal osteosarcoma (OS) is a malignant tumor that has a poor outcome. MicroRNA-520b (miR-520b) acts as a cancer suppressor in various types of cancer. Because of the limited amount of literature on OS, we aimed to identify the role of miR-520b in OS. The miR-520b level in clinical spinal OS tissues and adjacent nontumor tissues as well as in cell lines was assessed. The effect of miR-520b on cell proliferation, migration, invasion, and frizzled-8 (FZD8) degradation were all evaluated. Alterations of key proteins involved in the Wnt/b-catenin pathway were assessed by Western blot analysis. In… More >

Hui Li^*, Zhigang Xiang^*, Yan Liu^*, Bin Xu^*, Jianzhou Tang^†

Oncology Research, Vol.25, No.8, pp. 1269-1282, 2017, DOI:10.3727/096504017X14850151453092

Abstract MicroRNAs (miRs), a class of small noncoding RNAs, are key gene regulators through inducing translational repression or degradation of their target genes. However, the regulatory mechanism of miR-133b underlying hepatocellular carcinoma (HCC) growth and metastasis remains largely unclear. Here we found that miR-133b was significantly downregulated in HCC tissues and cell lines. Moreover, low miR-133b levels were significantly associated with the malignant progression of HCC. LASP1, upregulated in HCC tissues and cell lines, was then identified as a novel target of miR-133b in HCC HepG2 and Hep3B cells. Moreover, the increased expression of LASP1 was… More >

Fang Chen^*1, Wei Xiong^*†1, Ke Dou^‡, Qing Ran^*

Oncology Research, Vol.25, No.8, pp. 1261-1267, 2017, DOI:10.3727/096504017X14871164924588

Abstract Forkhead box K1 (FOXK1) is a member of the FOX transcription factor family and plays an important role in the development of several tumors. However, the role of FOXK1 in the progression of prostate cancer remains unknown. Thus, the objectives of this study were to detect the expression of FOXK1 in prostate cancer and to examine its role in prostate cancer cells. We found that the expression of FOXK1 at both the mRNA and protein levels was significantly upregulated in human prostate cancer cell lines. In addition, the downregulation of FOXK1 obviously inhibited the cell… More >

Ning Wu^*, Changyu He^†, Bohui Zhu^*, Jinling Jiang^†, Yiwen Chen^*, Tao Ma^†

Oncology Research, Vol.25, No.7, pp. 1153-1159, 2017, DOI:10.3727/096504017X14845839228545

Abstract Gastric cancer (GC) is one of the most common cancers and the second leading cause of cancer deaths in the world. Many factors have been reported regarding the progression and development of GC. In this study, we aimed to investigate the correlation of 3-phosphoinositide dependent protein kinase-1 (PDK-1) with cell viability, migration, and invasion of GC. The expression of PDK-1 was measured in different GC cell lines. Thereafter, the expression of PDK-1 was interfered by small hairpin RNA (shRNA) and then incubated with or without the inhibitor of nuclear factor-kB (NF-kB) pyrrolidine dithiocarbamate (PDTC). We… More >