Xingxiang Liu^*†, Lin Cui^†, Dong Hua^*‡

Oncology Research, Vol.27, No.1, pp. 99-106, 2019, DOI:10.3727/096504018X15195193936573

Abstract We aimed to investigate the significant role of long noncoding RNA X inactive specific transcript (XIST) in regulating tumor metastasis in colorectal cancer (CRC), as well as its possible mechanism. Expression of lncRNA XIST in CRC tissues and CRC cells was detected. CRC cells were transfected with pc-XIST, blank control si-XIST, or si-control, and then the effects of lncRNA XIST on CRC cell migration and invasion were investigated, along with the interaction between lncRNA XIST and miR-137. lncRNA XIST was upregulated in CRC tissues. Compared with HT29 cells that had low metastatic potential, XIST was markedly more highly expressed in… More >

Fan-Chun Meng, Jun-Kai Lin

Oncology Research, Vol.27, No.2, pp. 139-146, 2019, DOI:10.3727/096504018X15185747911701

Abstract Inhibition of tumor metastasis is one of the most important purposes in colorectal cancer (CRC) treatment. This study aimed to explore the effects of liquiritigenin, a flavonoid extracted from the roots of Glycyrrhiza uralensis Fisch, on HCT116 cell proliferation, invasion, and epithelial-to-mesenchymal transition (EMT). We found that liquiritigenin significantly inhibited HCT116 cell proliferation, invasion, and the EMT process, but had no influence on cell apoptosis. Moreover, liquiritigenin remarkably reduced the expression of runt-related transcription factor 2 (Runx2) in HCT116 cells. Overexpression of Runx2 obviously reversed the liquiritigenininduced invasion and EMT inhibition. Furthermore, liquiritigenin inactivated the phosphoinositide 3-kinase/ protein kinase B… More >

Qiuying Quan^*1, Fengyun Zhong^†1, Xinwei Wang^‡, Kai Chen^§, Lingchuan Guo^*

Oncology Research, Vol.27, No.7, pp. 779-788, 2019, DOI:10.3727/096504018X15442985680348

Abstract The aim of this study was to investigate the underlying mechanisms that transforming growth factor- (TGF- )-mediated epithelial-to-mesenchymal transition (EMT) in tumor cells contributes to 5-FU resistance. A series of experiments involving cell viability and caspase activity analyses, siRNA transfection, RNA isolation, and quantitative-PCR (qPCR) assay, cell migration analysis, Western blotting analysis of total protein and membrane protein were performed in this study. Mouse xenograft model was used to determine the effect of the PAR2 inhibitor in vivo. In this study, we found that protease-activated receptor 2 (PAR2) induction in 5-FU therapy is correlated with TGF- -mediated EMT and apoptosis… More >

Hua Yunqi^*1, Yin Fangrui^†1, Yang Yongyan^*, Jin Yunjian^*, Zhang Wenhui^*, Cao Kun^*, Li Min^*, Liu Xianfeng^*, Ba Caixia^*

Oncology Research, Vol.27, No.3, pp. 311-316, 2019, DOI:10.3727/096504018X15220579006875

Abstract Emerging evidence indicates that microRNAs (miRNAs) are often aberrantly expressed in human cancers. Meanwhile, the importance of miRNAs in regulating multiple cellular biological processes has been appreciated. The aim of this study was to investigate the significance of miR-455 and identify its possible mechanism in regulating colorectal cancer (CRC) progression. We found that the expression of miR-455 was sharply reduced in CRC tissues and cell lines. Importantly, the low expression of miR-455 was associated with poor overall survival of CRC patients. Overexpression of miR-455 in CRC cell lines significantly inhibited cell proliferation and migration in vitro. Moreover, GATA-binding protein 6… More >

Chijiang Gu^*, Mingyuan Zhang^*, Weiliang Sun^*, Changzheng Dong^†

Oncology Research, Vol.27, No.5, pp. 515-524, 2019, DOI:10.3727/096504018X15166183598572

Abstract Colorectal cancer (CRC) is a common clinical cancer that remains incurable in most cases. miRNAs are reported to play a part in the development of various tumors. In the present study, we found that miR-324-5p was downregulated in CRC cells, while ELAV (embryonic lethal, abnormal vision, Drosophila)-like protein 1 (ELAVL1) showed a higher expression. miR-324-5p transfection significantly inhibited the proliferation as well as invasion in both SW620 and SW480 cells. miR-324-5p mimic transfection markedly decreased the expression of ELAVL1. Luciferase reporter gene assay confirmed that ELAVL1 is a direct target of miR- 324-5p. Furthermore, cancer invasion factors uPA, uPAR, and… More >

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, we discovered that reduced levels… More >

Fen Liu^*†, Shaojun Liu^*, Feiyan Ai^*†, Decai Zhang^*†, Zhiming Xiao^*, Xinmin Nie^‡, Yunfeng Fu^§

Oncology Research, Vol.28, No.5, pp. 553-557, 2020, DOI:10.3727/096504020X16032056440094

Abstract Colorectal cancer (CRC) is one of the most common malignancies in the world, with a high incidence and a high mortality. However, the pathogenesis of CRC carcinogenesis is still unexplored. In this study, we investigated the role of miR-107 in the regulation of CRC cell proliferation and apoptosis. First, the expression of miR-107 was observed to be aberrantly increased in human CRC tumor tissues and cell lines when compared to the colonic control tissues and colon epithelial cells. Further study showed that the proliferative and apoptotic capacities of human CRC SW480 and LoVo cells were aberrantly regulated by miR-107. The… More >

Lili Deng^*1, Xue Yang^†1, Jun Fan^*, Yuedi Ding^*, Ying Peng^*, Dong Xu^*, Biao Huang^*‡, Zhigang Hu^†

Oncology Research, Vol.28, No.6, pp. 579-590, 2020, DOI:10.3727/096504020X15942028641011

Abstract Colorectal cancer is an aggressive malignancy for which there are limited treatment options. Oncolytic vaccinia virus is being developed as a novel strategy for cancer therapy. Arming vaccinia virus with immunostimulatory cytokines can enhance the tumor cell-specific replication and antitumor efficacy. Interleukin-24 (IL-24) is an important immune mediator, as well as a broad-spectrum tumor suppressor. We constructed a targeted vaccinia virus of Guang9 strain harboring IL-24 (VG9-IL-24) to evaluate its antitumor effects. In vitro, VG9-IL-24 induced an increased number of apoptotic cells and blocked colorectal cancer cells in the G₂ /M phase of the cell cycle. VG9-IL-24 induced apoptosis in… More >

Wei Song^*, Jia-Zhuan Mei^†, Mingzhi Zhang^‡

Oncology Research, Vol.28, No.9, pp. 971-972, 2020, DOI:10.3727/096504022X16414984936791

Abstract Accumulating evidence has indicated that long noncoding RNA (lncRNA) PlncRNA-1 plays an important regulatory role in cancers. However, the expression and biological functions of PlncRNA-1 in colorectal cancer (CRC) are still unclear. In the present study, we determined the expression of PlncRNA-1 in CRC and explored the function of PlncRNA-1 on CRC cell progression. The results showed that PlncRNA-1 was significantly increased in CRC tissues and cell lines; high PlncRNA-1 expression was associated with depth of invasion, lymph node metastasis, and TNM stage of CRC patients. Kaplan–Meier curve analysis showed that patients with high PlncRNA-1 expression had a poor overall… More >

Ching-Wen Huang^*, Cheng-Jen Ma^*†, Wei-Chih Su^*, Yi-Ting Chen^‡§, Hsiang-Lin Tsai^*¶, Yung-Sung Yeh^*#, Tsung-Kun Chang^*, Wen-Hung Hsu^**††, Fang-Jung Yu^**††, Jaw-Yuan Wang^{*¶‡‡§§¶¶##}

Oncology Research, Vol.28, No.7-8, pp. 701-714, 2020, DOI:10.3727/096504020X15986099915822

Abstract This study evaluated the survival effects of metronomic maintenance therapy with oral fluoropyrimidine in patients with stage III colorectal cancer (CRC) according to epidermal growth factor receptor (EGFR) expression. We enrolled 197 patients with stage III CRC who had undergone radical resection and FOLFOX regimen adjuvant chemotherapy. The clinicopathological features and effects of metronomic maintenance therapy with oral capecitabine (daily dose of 850 mg/m2 , twice daily, on days 1–14 every 3 weeks for 6 months) on survival according to treatment group and EGFR expression were analyzed. By conducting an in vitro cell line study and in vivo study through… More >