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https://www.readbyqxmd.com/read/27922674/2-hydroxycinnamaldehyde-induces-apoptosis-through-hsf1-mediated-bag3-expression
#1
Hai-Anh Nguyen, Soo-A Kim
BAG3, a member of BAG co-chaperone family, is induced by stressful stimuli such as heat shock and heavy metals. Through interaction with various binding partners, BAG3 is thought to play a role in cellular adaptive responses against stressful conditions in normal and neoplastic cells. 2'-Hydroxycinnamaldehyde (HCA) is a natural derivative of cinnamaldehyde and has antitumor activity in various cancer cells. In the present study, for the first time, we identified that HCA induced BAG3 expression and BAG3-mediated apoptosis in cancer cells...
December 6, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27918445/docetaxel-loaded-self-assembly-stearic-acid-modified-bletilla-striata-polysaccharide-micelles-and-their-anticancer-effect-preparation-characterization-cellular-uptake-and-in-vitro-evaluation
#2
Qingxiang Guan, Dandan Sun, Guangyuan Zhang, Cheng Sun, Miao Wang, Danyang Ji, Wei Yang
Poorly soluble drugs have low bioavailability after oral administration, thereby hindering effective drug delivery. A novel drug-delivery system of docetaxel (DTX)-based stearic acid (SA)-modified Bletilla striata polysaccharides (BSPs) copolymers was successfully developed. Particle size, zeta potential, encapsulation efficiency (EE), and loading capacity (LC) were determined. The DTX release percentage in vitro was determined using high performance liquid chromatography (HPLC). The hemolysis and in vitro anticancer activity were studied...
December 2, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27918085/ppar%C3%AE-promotes-cancer-cell-glut1-transcription-repression
#3
Mengli You, Jianhua Jin, Qian Liu, QingGang Xu, Juanjuan Shi, Yongzhong Hou
Abundant nutrient availability including glucose and amino acids plays an important role in maintaining cancer cell energetic and biosynthetic pathways. As a nuclear receptor, peroxisome-proliferator-activated receptor α (PPARα) regulates inflammation and cancer progression, however, it is still unclear the interaction of PPARα with the cancer cell glucose metabolism. Here we found that PPARα reduced Glut1 (Glucose transporter 1) protein and gene levels in HCT-116, SW480, HeLa, and MCF-7 cancer cell lines...
December 5, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27914101/tuc-338-promotes-invasion-and-metastasis-in-colorectal-cancer
#4
Chenghai Wang, Zheng Wang, Jie Zhou, Shuang Liu, Cong Wu, Caihong Huang, Yongling Ding
Ultraconserved regions (UCRs) are non-protein coding gene sequences that are strictly conserved across among different species. Emerging evidence demonstrates that transcribed ultraconserved regions (TUCRs) encoding noncoding RNAs serve as regulators of gene expression. In recent decades, increasing evidence implicates the involvement of UCRs in carcinogenesis. The role of TUC.338 in cervical cancers was an oncogene in previous studies. Until now, the role of TUC.338 in colorectal cancers remains undefined...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27913571/snord126-promotes-hcc-and-crc-cell-growth-by-activating-the-pi3k-akt-pathway-through-fgfr2
#5
Xianlong Fang, Dongmei Yang, Hongping Luo, Shuai Wu, Wenjie Dong, Jing Xiao, Sujing Yuan, Aimin Ni, Kang-Jian Zhang, Xin-Yuan Liu, Liang Chu
Small nucleolar RNA (snoRNA) dysfunctions have been associated with cancer development. SNORD126 is an orphan C/D box snoRNA that is encoded within introns 5-6 of its host gene, cyclin B1-interacting protein 1 (CCNB1IP1) The cancer-associated molecular mechanisms triggered by SNORD126 are not fully understood. Here, we demonstrate that SNORD126 is highly expressed in hepatocellular carcinoma (HCC) and colorectal cancer (CRC) patient samples. SNORD126 increased Huh-7 and SW480 cell growth and tumorigenicity in nude mice...
December 2, 2016: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/27904776/microrna-195-suppresses-colorectal-cancer-cells-proliferation-via-targeting-fgf2-and-regulating-wnt-%C3%AE-catenin-pathway
#6
Xianxiang Zhang, Ji Xu, Tao Jiang, Guangwei Liu, Dongsheng Wang, Yun Lu
Colorectal cancer (CRC) is a prevalent cancer with high mortality worldwide. This study was aimed to explore the functional effects of microRNA-195 (miR-195) on CRC cells and the underling mechanism involved. quantitative PCR (qPCR) was performed to monitor the expression of miR-195 in CRC tissues and cell lines. SW480 and SW620 cells were transfected with either miR-195 mimic or antisense oligonucleotides (ASO) of miR-195. Then cell viability, cell cycle and the expressions of CyclinB1, CyclinD1 and Cyclin-Dependent Kinase 2 (CDK2) were respectively detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyltetrazolium bromide (MTT), flow cytometry, qPCR and Western blot...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27903583/aspirin-therapy-reduces-the-ability-of-platelets-to-promote-colon-and-pancreatic-cancer-cell-proliferation-implications-for-the-oncoprotein-c-myc
#7
Annachiara Mitrugno, Joanna L Sylman, Anh T P Ngo, Jiaqing Pang, Rosalie C Sears, Craig Williams, Owen J T McCarty
Aspirin, an anti-inflammatory and anti-thrombotic drug, has become the focus of intense research as a potential anti-cancer agent owing to its ability to reduce tumor proliferation in vitro and to prevent tumorigenesis in patients. Studies have found an anti-cancer effect of aspirin when used in low, anti-platelet doses. However, the mechanism(s) through which low dose aspirin works is poorly understood. In this study we aimed to determine the effect of aspirin on the crosstalk between platelets and cancer cells...
November 30, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/27895783/curcumin-suppresses-colon-cancer-cell-invasion-via-ampk-induced-inhibition-of-nf-%C3%AE%C2%BAb-upa-activator-and-mmp9
#8
Weihua Tong, Quan Wang, Donghui Sun, Jian Suo
Curcumin, an active nontoxic ingredient of turmeric, possesses potent anti-inflammatory, antioxidant and anti-cancer properties; however, the molecular mechanisms of curcumin are not fully understood. The transcription factor nuclear factor-κB (NF-κB) is key in cellular processes, and the expression/activation of urokinase-type plasminogen activator (uPA) and matrix metalloproteinase-9 (MMP9) are crucial for cell invasion. The present study investigated the hypothesis that curcumin inhibits colon cancer cell invasion by modulating NF-κB-mediated expression and activation of uPA and MMP9...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27890432/silencing-of-long-non-coding-rna-sbdsp1-suppresses-tumor-growth-and-invasion-in-colorectal-cancer
#9
Debing Shi, Lei Liang, Hongtu Zheng, Guoxiang Cai, Xinxiang Li, Ye Xu, Sanjun Cai
Long non-coding RNAs (lncRNAs) play critical roles in tumor development and progression. This study was undertaken to examine the expression and biological functions of a novel lncRNA SBDSP1 in colorectal cancer (CRC). Quantitative real-time PCR analysis was used to measure the expression of SBDSP1 in CRC tissues and cell lines. Knockdown of SBDSP1 via short hairpin RNA technology was performed to determine the roles of SBDSP1 in CRC cell growth, colony formation, cell cycle progression, migration, and invasion...
November 24, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27889234/in-silico-and-in-vitro-anti-cancer-potential-of-a-curcumin-analogue-1e-6e-1-7-di-1h-indol-3-yl-hepta-1-6-diene-3-5-dione
#10
Shamim Akhtar Sufi, Lakshmi Narayana Adigopula, Safiulla Basha Syed, Victor Mukherjee, Mohane S Coumar, H Surya Prakash Rao, Rukkumani Rajagopalan
PURPOSE: Previously we showed that BDMC, an analogue of curcumin suppresses growth of human breast and laryngeal cancer cell line by causing apoptosis. Here, we demonstrate the enhanced anti-cancer activity of a heterocyclic ring (indole) incorporated curcumin analogue ((1E, 6E)-1, 7-di (1H-indol-3-yl) hepta-1, 6-diene-3, 5-Dione), ICA in short, in comparison to curcumin. METHOD: ICA was synthesized by a one pot condensation reaction. Anti-cancer potential of ICA was assessed in three human cancer cell lines of different origin (Lung adenocarcinoma (A549), leukemia (K562) and colon cancer (SW480)) by MTT assay...
November 23, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27878255/roles-of-mitochondrial-transcription-factor-a-and-microrna%C3%A2-590%C3%A2-3p-in-the-development-of-colon-cancer
#11
Kaiming Wu, Zhenxian Zhao, Yinglian Xiao, Jianjun Peng, Jianhui Chen, Yulong He
Mitochondrial transcription factor A (TFAM) participates in the process of mitochondrial DNA replication and transcription. microRNAs (miRNAs) serve an important role in the regulation of gene expression. However, the roles of TFAM and certain miRNAs and their associations in the development of numerous cancer types remain unclear. The current study demonstrated that the expression of TFAM was significantly upregulated in colon cancer compared with the normal tissue, while the expression of miRNA‑590‑3p (miR‑590‑3p) was predicted with a high score using miRWalk software, and the luciferase assay demonstrated that TFAM was the direct target of miRNA‑590‑3p...
November 21, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27878254/restoration-of-the-tumor-suppressor-function-to-mutant-p53-by-ganoderma-lucidum-polysaccharides-in-colorectal-cancer-cells
#12
Dan Jiang, Lingyao Wang, Tong Zhao, Zhaoyu Zhang, Renxia Zhang, Jingji Jin, Yong Cai, Fei Wang
Ganoderma lucidum polysaccharides (GLPs), isolated from spores, mycelia and fruiting bodies of Ganoderma lucidum, have been suggested to possess anticancer activities in a large number of basic studies. A recent survey revealed that GLP-induced inhibition of cancer cell growth was dependent on the existence of functional p53. However, the actual role of p53-mediated tumor-suppressing pathways in facilitating the anticancer effect of GLPs is still unclear. In the present study, we investigated the interaction between GLPs and mutant p53 that exists in more than half of the known types of cancers...
November 15, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27876571/fusobacterium-nucleatum-increases-proliferation-of-colorectal-cancer-cells-and-tumor-development-in-mice-by-activating-tlr4-signaling-to-nf%C3%AE%C2%BAb-upregulating-expression-of-microrna-21
#13
Yongzhi Yang, Wenhao Weng, Junjie Peng, Leiming Hong, Lei Yang, Yuji Toiyama, Renyuan Gao, Minfeng Liu, Mingming Yin, Cheng Pan, Hao Li, Bomin Guo, Qingchao Zhu, Qing Wei, Mary-Pat Moyer, Ping Wang, Sanjun Cai, Ajay Goel, Huanlong Qin, Yanlei Ma
BACKGROUND & AIMS: Nearly 20% of the global cancer burden can be linked to infectious agents. Fusobacterium nucleatum promotes tumor formation by epithelial cells via unclear mechanisms. We aimed to identify microRNAs (miRNAs) induced by F nucleatum and evaluate their ability to promote colorectal carcinogenesis in mice. METHODS: Colorectal cancer (CRC) cell lines were incubated with F nucleatum or control reagents and analyzed in proliferation and would healing assays...
November 19, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27864128/prostaglandin-e2-activates-yap-and-a-positive-signaling-loop-to-promote-colon-regeneration-following-colitis-but-also-carcinogenesis-in-mice
#14
Han-Byul Kim, Minchul Kim, Young-Soo Park, Intae Park, Tackhoon Kim, Sung-Yeun Yang, Charles J Cho, DaeHee Hwang, Jin-Hak Jung, Sanford D Markowitz, Sung Wook Hwang, Suk-Kyun Yang, Dae-Sik Lim, Seung-Jae Myung
BACKGROUND & AIMS: Prostaglandin E2 (PGE2) is mediator of inflammation that regulates tissue regeneration, but its continual activation has been associated with carcinogenesis. Little is known about factors in the PGE2 signaling pathway that contribute to tumor formation. We investigated whether yes associated protein 1 (YAP1), a transcriptional co-activator in the Hippo signaling pathway, mediates PGE2 function. METHODS: DLD-1 and SW480 colon cancer cell lines were transfected with vectors expressing transgenes or small hairpin RNAs and incubated with recombinant PGE2, with or without pharmacologic inhibitors of signaling proteins, and analyzed by immunoblot, immunofluorescence, quantitative reverse transcription PCR, transcriptional reporter, and proliferation assays...
November 15, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27863397/targeting-gli-by-gant61-involves-mechanisms-dependent-on-inhibition-of-both-transcription-and-dna-licensing
#15
Ruowen Zhang, Jiahui Wu, Sylvain Ferrandon, Katie J Glowacki, Janet A Houghton
The GLI genes are transcription factors and in cancers are oncogenes, aberrantly and constitutively activated. GANT61, a specific GLI inhibitor, has induced extensive cytotoxicity in human models of colon cancer. The FOXM1 promoter was determined to be a transcriptional target of GLI1. In HT29 cells, inhibition of GLI1 binding at the GLI consensus sequence by GANT61 led to inhibited binding of Pol II, the pause-release factors DSIF, NELF and p-TEFb. The formation of R-loops (RNA:DNA hybrids, ssDNA), were reduced by GANT61 at the FOXM1 promoter...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27829319/effect-of-different-concentrations-of-oxygen-on-expression-of-sigma-1-receptor-and-superoxide-dismutases-in-human-colon-adenocarcinoma-cell-lines
#16
Michał Skrzycki, Hanna Czeczot, Magdalena Mielczarek-Puta, Dagmara Otto-Ślusarczyk, Wojciech Graboń
CONTEXT: Tumor cells due to distance from capillary vessels exist in different oxygenation conditions (anoxia, hypoxia, normoxia). Changes in cell oxygenation lead to reactive oxygen species production and oxidative stress. Sigma 1 receptor (Sig1R) is postulated to be stress responding agent and superoxide dismutases (SOD1 and SOD2) are key antioxidant enzymes. It is possible that they participate in tumor cells adaptation to different concentrations of oxygen. OBJECTIVE: Evaluation of Sig1R, SOD1, and SOD2 expression in different concentrations of oxygen (1%, 10%, 21%) in colon adenocarcinoma cell lines...
November 9, 2016: Journal of Receptor and Signal Transduction Research
https://www.readbyqxmd.com/read/27827301/validation-and-development-of-mth1-inhibitors-for-treatment-of-cancer
#17
U Warpman Berglund, K Sanjiv, H Gad, C Kalderén, T Koolmeister, T Pham, C Gokturk, R Jafari, G Maddalo, B Seashore-Ludlow, A Chernobrovkin, A Manoilov, I S Pateras, A Rasti, A-S Jemth, I Almlöf, O Loseva, T Visnes, B O Einarsdottir, F Z Gaugaz, A Saleh, B Platzack, O A Wallner, K S A Vallin, M Henriksson, P Wakchaure, S Borhade, P Herr, Y Kallberg, P Baranczewski, E J Homan, E Wiita, V Nagpal, T Meijer, N Schipper, S G Rudd, L Bräutigam, A Lindqvist, A Filppula, T-C Lee, P Artursson, J A Nilsson, V G Gorgoulis, J Lehtiö, R A Zubarev, M Scobie, T Helleday
BACKGROUND: Previously, we showed cancer cells rely on the MTH1 protein to prevent incorporation of otherwise deadly oxidised nucleotides into DNA and we developed MTH1 inhibitors which selectively kill cancer cells. Recently, several new and potent inhibitors of MTH1 were demonstrated to be non-toxic to cancer cells, challenging the utility of MTH1 inhibition as a target for cancer treatment. MATERIAL AND METHODS: Human cancer cell lines were exposed in vitro to MTH1 inhibitors or depleted of MTH1 by siRNA or shRNA...
November 8, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27822064/mir-497-suppresses-epithelial-mesenchymal-transition-and-metastasis-in-colorectal-cancer-cells-by-targeting-fos-related-antigen-1
#18
Nan Zhang, Quan Shen, Pingping Zhang
OBJECTIVE: MicroRNAs have key roles in tumor metastasis. The acquisition of metastatic capability by cancer cells is associated with epithelial-mesenchymal transition (EMT). Here, we describe the role and molecular mechanism of miR-497 in colorectal cancer (CRC) cell EMT, migration, and invasion. METHODS: Quantitative real-time polymerase chain reaction and Western blot assays were performed to detect the expression levels of miR-497 and Fos-related antigen-1 (Fra-1) in the CRC cells...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27820967/a-new-phenolic-glycoside-from-lindera-nacusua
#19
Jie-Ping Lei, Guo-Qing Wei, Juan-Juan Yuan, Kang-Zhi Tan, Qiao-Yu Chen, Tao Zhang, Chao-Ying Ma, He-Zhong Jiang
The present study was designed to investigate the chemical constituents of Lindera nacusua and their antitumor activities. A new phenolic glycoside, namely 1-O-3-hydroxyphenyl-5-methoxyphenol-(6'-O-vanilloyl)-β-d-glucopyranoside (1), together with five known phenolic glycosides (2-6), two anthraquinones (7, 8) and two γ-butanolides (9, 10), was isolated, and its structure was elucidated by spectroscopic and chemical methods. Compounds 1-10 were screened for their in vitro cytotoxicities against HL-60, SMMC-7721, A549, MCF-3 and SW480 cell lines by the MTS method...
November 7, 2016: Natural Product Research
https://www.readbyqxmd.com/read/27805253/cortactin-contributes-to-the-tumorigenicity-of-colorectal-cancer-by-promoting-cell-proliferation
#20
Huo Wu, Xi Cheng, Xiaopin Ji, Yonggang He, Xiaoqian Jing, Haoxuan Wu, Ren Zhao
Cortactin is a scaffolding protein that regulates Arp2/3-mediated actin polymerization. We showed in a previous study that cortactin was highly expressed in human stage II-III colorectal cancer (CRC) tissues. In the present study, using colony formation and CCK-8 assays, we showed that overexpression of cortactin accelerated the proliferation of CRC cells. Flow cytometric assays revealed that cortactin promoted G1/S phase cell cycle transition. Later, we constructed the phosphorylation mutation of cortactin at the Tyr421 residue...
October 27, 2016: Oncology Reports
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