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Oncology Research

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https://www.readbyqxmd.com/read/28631600/inhibition-of-carbonic-anhydrase-ix-by-ureidosulfonamide-inhibitor-u104-reduces-prostate-cancer-cell-growth-but-does-not-modulate-daunorubicin-or-cisplatin-cytotoxicity
#1
Anne Riemann, Antje Güttler, Verena Haupt, Henri Wichmann, Sarah Reime, Matthias Bache, Dirk Vordermark, Oliver Thews
Carbonic anhydrase IX has emerged as a promising target for cancer therapy. It is highly up-regulated in hypoxic regions and mediates pH regulation critical for tumor cell survival as well as extracellular acidification of the tumor microenvironment which promotes tumor aggressiveness via various mechanisms, such as augmenting metastatic potential. Therefore, the aim of this study was to analyze the complex interdependency between CA IX and the tumor microenvironment in prostate tumor cells in concern of potential therapeutic implications...
June 19, 2017: Oncology Research
https://www.readbyqxmd.com/read/28600863/silencing-of-lncrna-ccdc26-restrains-the-growth-and-migration-of-glioma-cells-in-vitro-and-in-vivo-via-targeting-mir-203
#2
Shilei Wang, Yuzuo Hui, Xiaoming Li, Qingbin Jia
Gliomas are the most common primary brain tumors with high mortality. The treatment for gliomas is largely limited dueto the uncomprehending pathological mechanism. Here we aimed to investigate the effect of long non-coding RNA (lncRNA) coiled-coil domain-containing 26 (CCDC26) in gliomas progression. In our study, the expression of CCDC26 was found up-regulated in gliomas tissues and cell lines compared with normal tissues and cell lines. Further exploration detected decreased cell proliferation and increased cell apoptosis in U-251 and M059J cells transfected with CCDC26-siRNA...
June 9, 2017: Oncology Research
https://www.readbyqxmd.com/read/28560953/nelfinavir-and-ritonavir-kill-bladder-cancer-cells-synergistically-by-inducing-endoplasmic-reticulum-stress
#3
Akinori Sato, Takako Asano, Kazuki Okubo, Makoto Isono, Tomohiko Asano
The human immunodeficiency virus (HIV) protease inhibitor nelfinavir acts against malignancies by inducing endoplasmicreticulum (ER) stress. The HIV protease inhibitor ritonavir, on the other hand, not only induces ER stress but also inhibits P-glycoprotein's pump activity and thereby enhances the effects of its substrate drugs. We therefore postulated that ritonavir in combination with nelfinavir would kill bladder cancer cells effectively by inducing ER stress cooperatively and also enhancing nelfinavir's effect...
May 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28560951/mir-3188-regulates-cell-proliferation-apoptosis-and-migration-in-breast-cancer-by-targeting-tusc5-and-regulating-the-p38-mapk-signaling-pathway
#4
Xiaowen Chen, Jianli Chen
This study intended to investigate the effects of miR-3188 on breast cancer and to reveal the possible molecular mechanisms. miR-3188 was up-regulated and TUSC5 was down-regulated in breast cancer tissues and MCF-7 cells compared to normal tissue and MCF-10 cells. After MCF-7 cells were transfected with miR-3188 inhibitor, cell proliferation and migration were inhibited, while apoptosis was promoted. Luciferase reporter assay suggested that TUSC5 was a target gene of miR-3188. In addition, miR-3188 overexpression increased the p-p38 expression, while miR-3188 suppression decreased the p-p38 expression significantly...
May 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28560950/malat1-promotes-the-proliferation-and-metastasis-of-osteosarcoma-cells-by-activating-the-rac1-jnk-pathway-via-targeting-mir-509
#5
Yong Zhang, Qingfeng Dai, Fanying Zeng, Haichun Liu
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a long noncoding RNA (lncRNA) that contributes to the initiation and development of many solid tumors, including osteosarcoma (OS). In this study, we showed that MALAT1 was increased in human OS tissues and cell lines. MALAT1 knockdown suppressed OS cell growth and metastasis, induced OS cell apoptosis and delayed tumor growth in an OS xenograft model. We also detected downregulation of microRNA-509 (miR-509), a suppressor of OS growth, in OS tissues and cell lines...
May 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550680/elemene-increases-autophagic-apoptosis-and-drug-sensitivity-in-human-cisplatin-ddp-resistant-lung-cancer-cell-line-spc-a-1-ddp-by-inducing-beclin-1-expression
#6
Kun Zhou, Liping Wang, Ruirui Cheng, Xia Liu, Shengya Mao, Yan Yan
Drug resistance is the major obstacle for the successful therapy of lung adenocarcinoma. It was suggested that ß-elemene, a major isoform of elemene, could reverse the drug resistance in lung cancer cells. However, the underlying mechanisms remains poorly known. Here, we aimed to investigate whether elemene is involved in the cisplatin (DDP)-resistance of lung adenocarcinoma cells and further explore the underlying mechanism. The results showed that human lung adenocarcinoma cell line SPC-A-1 and its DDP-resistant strain SPC-A-1/DDP had a similar sensitivity to elemene treatment...
May 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550682/long-noncoding-rna-anril-promotes-cervical-cancer-development-by-acting-as-a-sponge-of-mir-186
#7
Jun-Jun Zhang, Dan-Dan Wang, Chen-Xiang Du, Yan Wang
Cervical cancer is a common malignancy of female reproductive system. Long non-coding RNA (lncRNA) has been reported tomodulate tumor progression in multiple cancers. The lncRNA antisense non-coding RNA in the INK4 locus (ANRIL) has been testified as oncogenic molecular in series tumors, however, the function and underlying mechanism involved in cervical cancer oncogenesis is still unclear. In present study, RT-PCR showed that ANRIL expression was significantly up-regulated in cervical cancer tumors and cell lines...
May 22, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550679/downregulation-of-src-kinase-signaling-inhibitor-1-srcin1-expression-by-microrna-32-promotes-proliferation-and-epithelial-mesenchymal-transition-in-human-liver-cancer-cells
#8
Ren Chen, Jin-Yao Liao, Jing Huang, Wen-Li Chen, Xiao-Jun Ma, Xiao-Dan Luo
MicroRNAs play an important role in regulating gene expression by binding to the 3' UTR of target mRNAs. In this studywe have made an attempt to assess the molecular mechanisms by which miR-32 suppresses the expression of SRCIN1, thereby leading to promotion of proliferation and epithelial-mesenchymal transition of human liver cancer cells. Human liver cancer cell lines HepG2 were transfected with miR-32 mimics and its control. The HepG2 cell lines were the assessed for miR-32 expression. The transfected cell lines were then studied for SRCIN1 expression by luciferase assay, effect of transfection on cell proliferation and finally epithelial-mesenchymal transition...
May 22, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550687/tanshinone-suppresses-arecoline-induced-epithelial-mesenchymal-transition-in-oral-submucous-fibrosis-by-epigenetically-reactivating-the-p53-pathway
#9
Lian Zheng, Zhen-Jie Guan, Wen-Ting Pan, Tian-Fang Du, Yu-Jia Zhai, Jia Guo
Oral submucous fibrosis (OSF) induced by the chewing of areca nut has been considered as a precancerous lesion with a higher probability of developing oral squamous cell carcinoma. Tanshinone (TSN) is the main component extracted from Salvia miltiorrhiza, a traditional Chinese medicine, which was found to have diverse pharmacological effects such as anti-inflammatory and anti-tumor effects. In current study, we aim to identify inhibitory effects and the underlying mechanism of Tanshinone on OSF progress. We found that treatment of TSN inhibited arecoline-mediated proliferation of primary human oral mucosal fibroblasts, and reversed the promotive effects of arecoline on EMT process...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550686/microrna-186-suppresses-cell-proliferation-and-metastasis-through-targeting-sentrin-specific-protease-1-in-renal-cell-carcinoma
#10
Dan Jiao, Man Wu, Lei Ji, Feng Liu, Yingying Liu
Recent evidence suggests that dysregulation of microRNAs are associated with the development of multiple malignancies.miR-186 has been reported as a critical cancer regulator in several types of cancers. However, its functional significance and molecular mechanism underlying renal cell carcinoma (RCC) remains unknown. In this study, our results showed that miR-186 expression was dramatically downregulated in RCC tissues and cell lines compared to that in adjacent normal tissues and cell lines. Overexpression of miR-186 significantly inhibited cell growth, colony formation, cell invasion, caused cell cycle arrest at G0/G1 phase, and induced cell apoptosis as detected by MTT, colony formation, Transwell assay, and flow cytometry assays in RCC cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550685/long-noncoding-rna-camta1-promotes-proliferation-and-mobility-of-human-breast-cancer-cell-line-mda-mb-231-via-targeting-mir-20b
#11
Pengwei Lu, Yuanting Gu, Lin Li, Fang Wang, Xue Yang, Yunqing Yang
Breast cancer is a serious threat to women's physical and psychological health. Long non-coding RNA CAMTA1 (LncCAMTA1)was believed to be related with tumor progression, but its role in breast cancer is not clear. Human breast cancer cell line MDA-MB-231 was used to investigate effect of LncCAMTA1 on cell viability, migration/invasion, and apoptosis. Expression of LncCAMTA1, miR-20b and VEGF in MDA-MB-231were measured after corresponding transfections. Binding effects between LncCAMTA1 and miR-20b, miR-20b and VEGF 3'UTR were measured...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550684/long-noncoding-rna-ccat2-knockdown-suppresses-tumorous-progression-by-sponging-mir-424-in-epithelial-ovarian-vancer
#12
Fu Hua, Chang-Hua Li, Xiao-Gang Chen, Xiao-Ping Liu
Epithelial ovarian cancer (EOC) is the one of most common gynecological malignant tumor with highest mortality, meanwhile, series of lncRNAs have been validated to play vital role in EOC tumorigenesis. Colon cancer-associated transcript 2 (CCAT2) has been verified as oncogenic lncRNA in multiple tumors, however, the role of CCAT2 in EOC genesis is still unclear. The purpose of present study is to probe the function of CCAT2 on EOC. Preliminary experiments found that CCAT2 expression was significantly up-regulated in EOC tissue and cell lines compared to noncancerous tissue and cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550678/knockdown-of-long-noncoding-rna-lncrna-metastasis-associated-lung-adenocarcinoma-transcript-1-malat1-inhibits-proliferation-migration-and-invasion-and-promoted-apoptosis-by-targeting-mir-124-in-retinoblastoma
#13
Shujun Liu, Guigang Yan, Junfu Zhang, Lianzhi Yu
Evidence suggests that the long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)is upregulated in cancer tissues and its elevated expression is associated with hyper-proliferation. However, the underlying mechanisms regarding the role of MALAT1 in retinoblastoma (RB) remains unclear. This study aimed to explore the functional role of MALAT1 in RB by targeting miR-124. Results showed that the expression of - MALAT1 was significantly higher in Y79 cell line than ARPE-19 cell line (P<0...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550688/long-noncoding-rna-crnde-prc2-participated-in-the-radiotherapy-resistance-of-human-lung-adenocarcinoma-through-targeting-p21-expression
#14
Ming Zhang, Change Gao, Yi Yang, Gaofeng Li, Jian Dong, Yiqin Ai, Nan Chen, Wenhui Li
Long noncoding RNAs (lncRNAs), as new class of functional regulators involved in human tumorigenesis, have been attracting increasing attention of researchers. The lncRNA Colorectal Neoplasia Differentially Expressed (CRNDE), transcribed from chromosome 16 on the strand opposite to the adjacent IRX5 gene, were originally found to be increased in CRC and was reported abnormal expressed in many cancers. However, its potential role and molecular mechanism underlying radioresistant phenotype formation of lung adenocarcinoma (LAD) remains unclear...
May 17, 2017: Oncology Research
https://www.readbyqxmd.com/read/28550683/oncogenic-role-of-microrna-30b-5p-in-glioblastoma-through-targeting-proline-rich-transmembrane-protein-2
#15
Zhongjun Li, Junxiu Guo, Yujie Ma, Zhixiong Lin, Longbo Zhang
MicroRNAs (miRs) have been found to play promoting or suppressive roles in different human cancers. However, the exactregulatory mechanism of miR-30b in glioblastoma still remains unknown. Here we showed that the expression of miR-30b was significantly increased in glioblastoma tissues and cell lines. Moreover, high expression of miR-30b was significantly associated with shorter survival time of glioblastoma patients. Knockdown of miR-30b caused a significant reduction in the proliferation, migration, and invasion of U87 and A172 cells...
May 17, 2017: Oncology Research
https://www.readbyqxmd.com/read/28492141/procaine-inhibits-proliferation-and-migration-of-colon-cancer-cells-through-inactivation-of-the-erk-mapk-fak-pathways-by-regulation-of-rhoa
#16
Chang Li, Shuohui Gao, Xiaoping Li, Chang Li, Lianjun Ma
Colon cancer is one of the lethal varieties of cancer. Chemotherapy remains to be one of the principal treatment approaches for colon cancer. Anticancer activity of procaine (PCA), which is a local anesthetic drug, has been explored in different studies. In our study, we aimed to explore the anticancer effect of PCA on colon cancer and its underlying mechanism. The results showed that PCA significantly inhibited cell viability, increased the percentage of apoptotic cells and decreased the expression level of RhoA in HCT116 cells in a dose dependent manner (P<0...
May 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28492139/histone-demethylase-jarid1b-is-overexpressed-in-osteosarcoma-and-upregulates-cyclin-d1-expression-via-demethylation-of-h3k27me3
#17
Wei Wang, Ke Zheng, Yi Pei, XiaoJing Zhang
JARID1B has been proven up-regulated in many human malignancies and correlated with tumor progression. However, its expression and clinical significance in osteosarcoma is still unclear. Thus, the aim of this study was to explore the effects of JARID1B in osteosarcoma tumorigenesis and development. In this study, we found that the expression levels of JARID1B in osteosarcoma tissues were significantly higher than those in corresponding noncancerous bone tissues. In addition, JARID1B up-regulation more frequently occurred in osteosarcoma specimens with poor prognosis...
May 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28492138/long-noncoding-rna-schlap1-accelerates-the-proliferation-and-metastasis-of-prostate-cancer-via-targeting-mir-198-and-promoting-the-mapk1-pathway
#18
Ye Li, Haihong Luo, Nan Xiao, Jianmin Duan, Zhiping Wang, Shuanke Wang
Prostate cancer has become the most commonly diagnosed and the second leading cause of cancer-related deaths in males.The long non-coding RNA SChLAP1 (second chromosome locus associated with prostate-1) has been found overexpressed in a subset of prostate cancers; however the significance and mechanism of SChLAP1 in prostate cancer is not well-known. In this study we explored the role of SChLAP1 in prostate cancer tissues, cell lines and mouse models. The effects of SChLAP1 on miR-198 and MAPK1 were specifically examined...
May 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28492136/inhibition-of-erk1-2-signaling-impairs-the-promoting-effects-of-tgf-%C3%A3-1-on-hepatocellular-carcinoma-cell-invasion-and-epithelial-mesenchymal-transition
#19
Ling Liu, Nianfeng Li, Qi Zhang, Jixiang Zhou, Ling Lin, Xinxin He
TGF-ß 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-ß's promoting and suppressive activities in HCC cells. Our data showed that treatment with TGF-ß1 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...
May 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/28548636/long-non-coding-rna-uca1-targets-mir-122-to-promote-proliferation-migration-and-invasion-of-glioma-cells
#20
Yang Sun, Jun-Gong Jin, Wei-Yang Mi, Hao Wu, Shi-Rong Zhang, Qiang Meng, Shi-Tao Zhang
Glioma is the most common and lethal intracranial malignant tumor. Long non-coding RNAs (lncRNAs) have been identifiedas pivotal regulators in the tumorigenesis of glioma. However, the role of lncRNA urothelial carcinoma-associated 1 (UCA1) in the gliomagenesis is still unknown. The purpose of this study is to investigate the underlying function of UCA1 on glioma genesis. Results demonstrated that UCA1 was up-regulated in glioma tissue and indicated the poor prognosis. UCA1 knockdown induced by si-UCA1 significantly suppressed the proliferative, migrative and invasive activity of glioma cell lines (U87 and U251)...
May 5, 2017: Oncology Research
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