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  • Open Access

    ARTICLE

    miR-107 Promotes Proliferation and Inhibits Apoptosis of Colon Cancer Cells by Targeting Prostate Apoptosis Response-4 (Par4)

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

    Oncology Research, Vol.25, No.6, pp. 967-974, 2017, DOI:10.3727/096504016X14803476672380

    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… More >

  • Open Access

    ARTICLE

    Overexpression of PER3 Inhibits Self-Renewal Capability and Chemoresistance of Colorectal Cancer Stem-Like Cells via Inhibition of Notch and β-Catenin Signaling

    Feng Zhang*, Hong Sun, Sai Zhang, Xin Yang, Guogang Zhang*, Tao Su

    Oncology Research, Vol.25, No.5, pp. 709-719, 2017, DOI:10.3727/096504016X14772331883976

    Abstract PER3, a circadian clock gene, plays an important role in colorectal cancer, but its action and underlying mechanism in colorectal cancer stem-like cells (CSCs) remain unclear. In this study, the colorectal CSCs were enriched in colorectal HCT-116 sphere-forming cells, expressing lower levels of stem cell markers CD133, CD44, LGR5, and SOX2 compared with HCT-116 cells. A drug-resistant strain from HCT-116 was established. Western blot and qRT-PCR analysis showed that PER3 was downregulated in colorectal CSCs and drug-resistant HCT-116. Overexpression of PER3 could strengthen 5-FU-induced inhibitory effects on colorectal CSCs, but knockdown of PER3 decreased its… More >

  • Open Access

    ARTICLE

    FOXR2 Promotes the Proliferation, Invasion, and Epithelial–Mesenchymal Transition in Human Colorectal Cancer Cells

    Sheng-Qiang Lu*1, Yan Qiu†1, Wei-Jie Dai, Xiao-Yu Zhang§

    Oncology Research, Vol.25, No.5, pp. 681-689, 2017, DOI:10.3727/096504016X14771034190471

    Abstract Forkhead box R2 (FOXR2), a member of the FOX gene family, has not been very well investigated for its role in cancer. A recent study has shown that FOXR2 is highly expressed in breast cancer samples and is associated with poor prognosis. In addition, FOXR2 was identified as an oncogene in medulloblastoma. Nevertheless, whether FOXR2 plays a role in colorectal cancer (CRC) remains unclear. In the present study, we conducted several in vitro and in vivo studies to investigate the expression and effect of FOXR2 in CRC. The study results demonstrated that FOXR2 was upregulated More >

  • Open Access

    ARTICLE

    Regorafenib Plus FOLFIRI With Irinotecan Dose Escalated According to Uridine Diphosphate Glucuronosyltransferase 1A1 Genotyping in Patients With Metastatic Colorectal Cancer

    Cheng-Jen Ma*†‡, Ching-Wen Huang*‡§, Yung-Sung Yeh*†¶, Hsiang-Lin Tsai*§#**, Huang-Ming Hu††‡‡, I-Chen Wu††‡‡, Tian-Lu Cheng§§¶¶, Jaw-Yuan Wang*†‡§**¶¶

    Oncology Research, Vol.25, No.5, pp. 673-679, 2017, DOI:10.3727/97818823455816X14786040691928

    Abstract We analyzed the results of previously treated patients with metastatic colorectal cancer (mCRC) who received regorafenib plus FOLFIRI with the irinotecan dose escalation on the basis of uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) genotyping. Thirteen patients with previously treated mCRC were subjected to UGT1A1 genotyping between October 2013 and June 2015 and were administered regorafenib plus FOLFIRI with irinotecan dose escalation. Patients with UGT1A1*1/*1 and *1/*28 genotypes were administered 180 mg/m2 of irinotecan, whereas those with the UGT1A1*28/*28 genotype were administered 120 mg/m2 of irinotecan. For all patients, the irinotecan dose was increased by 30 mg/m2 every… More >

  • Open Access

    ARTICLE

    Exosomes Derived From Hypoxic Colorectal Cancer Cells Promote Angiogenesis Through Wnt4-Induced β-Catenin Signaling in Endothelial Cells

    Zhe Huang, Yong Feng

    Oncology Research, Vol.25, No.5, pp. 651-661, 2017, DOI:10.3727/096504016X14752792816791

    Abstract Cancer cell-derived exosomes have been actively released into the tumor microenvironment with pleiotropic roles in tumor growth and metastasis, including angiogenesis and immune modulation. However, the functions and underlying mechanisms of exosomes shed by colorectal cancer (CRC) cells under hypoxic conditions remain unknown. Here we found that exosomes derived from hypoxic CRC cells promoted the proliferation and migration of endothelial cells. Suppression of exosome secretion through RAB27a knockdown in CRC cells inhibited exosomal-induced proliferation and migration of endothelial cells. Furthermore, we discovered that these exosomes enriched with Wnt4 were dependent on HIF1α. Exosomal Wnt4 increased More >

  • Open Access

    ARTICLE

    Empty Spiracles Homeobox 2 (EMX2) Inhibits the Invasion and Tumorigenesis in Colorectal Cancer Cells

    Yan Zhang, Gang Cao, Qing-gong Yuan, Jun-hui Li, Wen-Bin Yang

    Oncology Research, Vol.25, No.4, pp. 537-544, 2017, DOI:10.3727/096504016X14756640150695

    Abstract Empty spiracles homeobox 2 (EMX2) is a homeodomain-containing transcription factor that plays an essential role in tumorigenesis. However, to the best of our knowledge, the role of EMX2 in human colorectal cancer (CRC) is still unclear. Thus, the aim of this study was to investigate the expression and role of EMX2 in CRC. Our results demonstrated that the expression of EMX2 was greatly decreased in CRC tissues and cell lines. Overexpression of EMX2 significantly inhibited the proliferation in vitro and CRC tumor growth in nude mice. In addition, EMX2 also inhibited the migration and invasion More >

  • Open Access

    ARTICLE

    Knockdown of Tripartite Motif-Containing Protein 37 (TRIM37) Inhibits the Proliferation and Tumorigenesis in Colorectal Cancer Cells

    Ping Zhao*, Hai-Tao Guan, Zhi-Jun Dai, Yu-Guang Ma, Xiao-Xu Liu, Xi-Jing Wang

    Oncology Research, Vol.25, No.1, pp. 115-122, 2017, DOI:10.3727/096504016X14732772150181

    Abstract Tripartite motif-containing protein 37 (TRIM37), a new member of the RING-B-box-coiled-coil (RBCC) subfamily of zinc finger proteins, was found to be involved in the development and progression of several cancers. However, the expression pattern and biological functions of TRIM37 in colorectal cancer (CRC) remain unknown. Therefore, in the present study, we examined the expression pattern of TRIM37 in CRC and investigated the function of TRIM37 in the progression of CRC. Our results showed that TRIM37 expression was upregulated in CRC cell lines. Knockdown of TRIM37 inhibited CRC cell proliferation and tumor growth in vivo. Furthermore, More >

  • Open Access

    ARTICLE

    lncRNA NORAD Contributes to Colorectal Cancer Progression by Inhibition of miR-202-5p

    Jie Zhang*, Xiao-Yan Li*, Ping Hu, Yuan-Sheng Ding*

    Oncology Research, Vol.26, No.9, pp. 1411-1418, 2018, DOI:10.3727/096504018X15190844870055

    Abstract Previous study indicates that long noncoding RNA NORAD could serve as a competing endogenous RNA to pancreatic cancer metastasis. However, its role in colorectal cancer (CRC) needs to be investigated. In the present study, we found that the expression of NORAD was significantly upregulated in CRC tissues. Furthermore, the expression of NORAD was positively related with CRC metastasis and patients’ poor prognosis. Knockdown of NORAD markedly inhibited CRC cell proliferation, migration, and invasion but induced cell apoptosis in vitro. In vivo experiments also indicated an inhibitory effect of NORAD on tumor growth. Mechanistically, we found More >

  • Open Access

    ARTICLE

    MicroRNA-744 Inhibits Cellular Proliferation and Invasion of Colorectal Cancer by Directly Targeting Oncogene Notch1

    Jian Shen, Minzhe Li

    Oncology Research, Vol.26, No.9, pp. 1401-1409, 2018, DOI:10.3727/096504018X15188747585738

    Abstract Accumulated studies have strongly implicated aberrantly expressed microRNAs (miRNAs) in carcinogenesis and cancer progression of various cancers, including colorectal cancer (CRC). Hence, a comprehensive study of miRNAs and their association with CRC may be a promising therapeutic method for patients with this malignancy. MicroRNA-744 (miR-744) is abnormally expressed in several types of human cancer. Thus far, little is known about the expression, biological roles, and exact mechanisms of miR-744 in CRC. Thus, the present study measured the expression level of miR-744 and investigated its roles and associated molecular mechanisms in CRC. This study demonstrated that… More >

  • Open Access

    ARTICLE

    Long Noncoding RNA CCAL Promotes Papillary Thyroid Cancer Progression by Activation of NOTCH1 Pathway

    Ying Ye, Yanan Song, Juhua Zhuang, Saifei He, Jing Ni, Wei Xia

    Oncology Research, Vol.26, No.9, pp. 1383-1390, 2018, DOI:10.3727/096504018X15188340975709

    Abstract Long noncoding RNA CCAL has been reported to promote tumor progression in various human cancers, including hepatocellular carcinoma, osteosarcoma, and colorectal cancer. However, the role of CCAL in papillary thyroid cancer remains largely unknown. In the present study, we found that the expression of CCAL was upregulated in papillary thyroid tumor tissues compared to adjacent normal tissues. Moreover, the expression of CCAL was positively related with papillary thyroid cancer severity and TNM stage and predicated poor prognosis. Besides, we found that knockdown of CCAL significantly inhibited papillary thyroid cancer cell proliferation, migration, and invasion in More >

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