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https://www.readbyqxmd.com/read/29350680/effects-of-microrna-135a-on-the-epithelial-mesenchymal-transition-migration-and-invasion-of-bladder-cancer-cells-by-targeting-gsk3%C3%AE-through-the-wnt-%C3%AE-catenin-signaling-pathway
#1
Xia-Wa Mao, Jia-Quan Xiao, Zhong-Yi Li, Yi-Chun Zheng, Nan Zhang
This study investigated the effects of microRNA-135a (miR-135a) targeting of glycogen synthase kinase 3β (GSK3β) on the epithelial-mesenchymal transition (EMT), migration and invasion of bladder cancer (BC) cells by mediating the Wnt/β-catenin signaling pathway. BC and adjacent normal tissues were collected from 165 BC patients. Western blotting and quantitative real-time PCR were used to detect the expression of GSK3β, β-catenin, cyclinD1, E-cadherin, vimentin and miR-135a in BC tissues and cells. Cells were assigned to blank, negative control (NC), miR-135a mimics, miR-135a inhibitors, small interfering RNA (siRNA)-GSK3β or miR-135a inhibitors+siRNA-GSK3β groups...
January 19, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29350101/biomimetic-composite-scaffold-sis-mbg-exhibits-high-osteogenic-and-angiogenic-capacity
#2
Tingfang Sun, Man Liu, Sheng Yao, Yanhui Ji, Zekang Xiong, Kai Tang, Kaifang Chen, Hu Yang, Xiao-Dong Guo
Biomaterials with excellent osteogenic and angiogenic activities are desirable to repair massive bone defects. Decellularized matrix from porcine small intestinal submucosa (SIS) has attracted particular attention for tissue regeneration because it has strong angiogenic effects and retains plentiful bioactive components. However, it has inferior osteoinductivity and osteoconductivity. In this study, we developed porous composite of SIS combined with mesoporous bioactive glass (SIS/MBG) with the goal of improving the mechanical and biological properties...
January 19, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29350052/protective-mechanisms-of-6-gingerol-in-dextran-sulfate-sodium-induced-chronic-ulcerative-colitis-in-mice
#3
B O Ajayi, I A Adedara, E O Farombi
Ulcerative colitis (UC) is a relapsing and remitting inflammatory disease of the colon, with an increasing incidence worldwide. 6-Gingerol (6G) is a bioactive constituent of Zingiber officinale, which has been reported to possess various biological activities. This study was designed to evaluate the role of 6G in chronic UC. Chronic UC was induced in mice by three cycles of 2.5% dextran sulfate sodium (DSS) in drinking water. Each cycle consisted of 7 days of 2.5% DSS followed by 14 days of normal drinking water...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29348665/pcdhga9-acts-as-a-tumor-suppressor-to-induce-tumor-cell-apoptosis-and-autophagy-and-inhibit-the-emt-process-in-human-gastric-cancer
#4
Junyong Weng, Jingbo Xiao, Yushuai Mi, Xu Fang, Yahuang Sun, Shanbao Li, Zhiwei Qin, Xu Li, Tingting Liu, Senlin Zhao, Lisheng Zhou, Yugang Wen
The results of a cDNA  array revealed that protocadherin gamma subfamily A, 9 (PCDHGA9) was significantly decreased in SGC-7901 gastric cancer (GC) cells compared with GES-1 normal gastric cells and was strongly associated with the Wnt/β-catenin and transforming growth factor-β (TGF-β)/Smad2/3 signaling pathway. As a member of the cadherin family, PCDHGA9 functions in both cell-cell adhesion and nuclear signaling. However, its role in tumorigenicity or metastasis has not been reported. In the present study, we found that PCDHGA9 was decreased in GC tissues compared with corresponding normal mucosae and its expression was correlated with the GC TNM stage, the UICC stage, differentiation, relapse, and metastasis (p < 0...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348629/the-suppressive-role-of-calcium-sensing-receptor-in-endometrial-cancer
#5
Xiaoyan Xin, Xianqin Zeng, Dilu Feng, Teng Hua, Shuangge Liu, Shuqi Chi, Qinghua Hu, Hongbo Wang
Studies have shown that calcium sensing receptor (CaSR) is involved in the progressions of several human cancers. However, the role of CaSR in endometrial cancer remains unknown. This study provides a preliminary analysis of the CaSR effect on endometrial cancer development. Ectopic CaSR expression by lentiviral transfection (CaSR-OV) in Ishikawa cells significantly increased intracellular calcium ([Ca2+]i) levels and cell apoptosis. E-cadherin and β-catenin expression and complex formation at the membrane were increased in CaSR-OV Ishikawa cells relative to control Ishikawa cells (vector)...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348564/inhibition-of-wnt-%C3%AE-catenin-signaling-under-serum-starvation-and-hypoxia-induces-adipocytic-transdifferentiation-in-human-leiomyoma-cells
#6
Hiroshi Harada, Yojiro Tsuda, Kei Yabuki, Eisuke Shiba, Kazuyoshi Uchihashi, Atsuji Matsuyama, Yoshihisa Fujino, Toru Hachisuga, Masanori Hisaoka
Fatty metamorphosis is an uncommon alteration in uterine leiomyoma (i.e., lipoleiomyoma), and the pathogenetic mechanisms underlying this phenomenon remain poorly understood. Because a conditional deletion of β-catenin, a major transducer of the canonical Wingless/integrated (WNT) pathway, in the developing mouse uterus can induce adipogenesis in the myometrium, it is hypothesized that inhibition of the WNT/β-catenin signaling may be also involved in the development of fat cells within uterine leiomyoma. In the current study, which was performed to address this point, intracytoplasmic lipid droplets were detectable in cultured human leiomyoma cells by treatment with a potent tankyrase inhibitor, XAV939, which antagonizes β-catenin, in a serum-starved culture medium without additional adipogenesis-inducing agents or supplements, and showed increasing accumulation in a time-dependent manner...
January 18, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29348495/preclinical-evaluation-of-antitumor-activity-of-the-proteasome-inhibitor-mln2238-ixazomib-in-hepatocellular-carcinoma-cells
#7
Giuseppa Augello, Martina Modica, Antonina Azzolina, Roberto Puleio, Giovanni Cassata, Maria Rita Emma, Caterina Di Sano, Antonella Cusimano, Giuseppe Montalto, Melchiorre Cervello
Hepatocellular carcinoma (HCC) is one of the common malignancies and is an increasingly important cause of cancer death worldwide. Surgery, chemotherapy, and radiation therapy extend the 5-year survival limit in HCC patients by only 6%. Therefore, there is a need to develop new therapeutic approaches for the treatment of this disease. The orally bioavailable proteasome inhibitor MLN2238 (ixazomib) has been demonstrated to have anticancer activity. In the present study, we investigated the preclinical therapeutic efficacy of MLN2238 in HCC cells through in vitro and in vivo models, and examined its molecular mechanisms of action...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348204/tumor-suppressor-apc-is-an-attenuator-of-spindle-pulling-forces-during-c-elegans-asymmetric-cell-division
#8
Kenji Sugioka, Lars-Eric Fielmich, Kota Mizumoto, Bruce Bowerman, Sander van den Heuvel, Akatsuki Kimura, Hitoshi Sawa
The adenomatous polyposis coli (APC) tumor suppressor has dual functions in Wnt/β-catenin signaling and accurate chromosome segregation and is frequently mutated in colorectal cancers. Although APC contributes to proper cell division, the underlying mechanisms remain poorly understood. Here we show that Caenorhabditis elegans APR-1/APC is an attenuator of the pulling forces acting on the mitotic spindle. During asymmetric cell division of the C. elegans zygote, a LIN-5/NuMA protein complex localizes dynein to the cell cortex to generate pulling forces on astral microtubules that position the mitotic spindle...
January 18, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29345911/role-of-glycanation-and-convertase-maturation-of-the-soluble-glypican-3-in-inhibiting-proliferation-of-hepatocellular-carcinoma-cells
#9
Ahmad Saad, Benjamin Liet, Gilles Joucla, Xavier Santarelli, Justine Charpentier, Stéphane Claverol, Christophe F Grosset, Véronique Trézéguet
Glypican 3 (GPC3) is a complex heparan sulfate proteoglycan associated with the outer surface of the plasma membrane by a glycosyl-phosphatidylinositol anchor (GPI). It is also N-glycosylated and processed by a furine-like convertase. GPC3 has numerous biological functions. While undetectable in normal liver tissue, it is abnormally and highly overexpressed in hepatocellular carcinoma (HCC). Interestingly, proliferation of HCC cells such as HepG2 and HuH7 is inhibited when they express a soluble form of GPC3 after lentiviral transduction...
January 18, 2018: Biochemistry
https://www.readbyqxmd.com/read/29345390/wnt-%C3%AE-catenin-pathway-promotes-early-engraftment-of-fetal-hematopoietic-stem-progenitor-cells
#10
Edward O Kwarteng, Roxann Hétu-Arbour, Krista M Heinonen
The switch from fetal to adult hematopoietic stem/progenitor cells (HSPCs) is associated with profound changes in several genetic programs. Although HSPC ageing corresponds to alterations in Wnt signaling, relatively little is known about the relative roles of different Wnt signaling pathways in HSPC ontogeny. We hypothesized that proliferating fetal HSPCs would be more dependent on canonical β-catenin-dependent Wnt signaling when compared to quiescent adult bone marrow HSPCs. We have compared here Wnt signaling activities in murine fetal and adult HSPCs and demonstrate a shift from Wnt/β-catenin-dependent signaling in fetal liver HSPCs to more predominantly noncanonical Wnt/polarity signaling in adult HSPCs...
January 17, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345363/effects-of-il-10-and-th-2-cytokines-on-human-m%C3%AF-phenotype-and-response-to-csf1r-inhibitor
#11
Leon P Pradel, Andreas Franke, Carola H Ries
Tumor-associated Mφs display a plastic phenotype that is regulated by the local tumor milieu. Gene expression analysis and functional characterization of Mφs exposed in vitro to individual cytokines aids to delineate the cross-talk between defined cytokines shaping the complex Mφ phenotype. Human monocyte-derived Mφs can be differentiated in vitro with the T helper cell type 2 response cytokines IL-4 and IL-13 or the immunosuppressive IL-10. Notably, only the latter subset undergoes apoptosis when treated with the CSF 1 receptor (CSF1R) blocking antibody emactuzumab...
January 4, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345322/effect-of-substrate-stiffness-on-hepatocyte-migration-and-cellular-young-s-modulus
#12
Tingting Xia, Runze Zhao, Wanqian Liu, Qiping Huang, Peixing Chen, Yasinta Ningsih Waju, Mohanad Kh Al-Ani, Yonggang Lv, Li Yang
Hepatic fibrosis progress accompanied by an unbalanced extracellular matrix (ECM) degradation and deposition leads to an increased tissue stiffness. Hepatocytes interplay with all intrahepatic cell populations inside the liver. However, how hepatocytes migration and cellular Young's modulus influenced by the substrate stiffness are not well understood. Here, we established a stiffness-controllable in vitro cell culture model by using a polyvinyl alcohol (PVA) hydrogel that mimicked the same physical stiffness as a fibrotic liver...
January 18, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29345284/quantitative-proteomics-analysis-of-the-role-of-tetraspanin-8-in-the-drug-resistance-of-gastric-cancer
#13
Lan Li, Daping Yang, Dejun Cui, Yu Li, Zhao Nie, Jinglin Wang, Li Liang
Gastric cancer, due to its high incidence rate, is the second leading cause of cancer-related mortality worldwide. Chemotherapy is an important component of the multimodal treatment for gastric cancer; however, a significant impediment to successful treatment is multidrug resistance (MDR) in patients with gastric cancer. In the present study, the protein profiles of the MDR cell line, SGC7901/DDP, and its parental cell line, SGC7901, were comparatively analyzed through an iTRAQ-based quantitative proteomics technique...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29345189/microrna-19-contributes-to-the-malignant-phenotypes-of-osteosarcoma-in-vitro-by-targeting-pax6
#14
Qingbing Meng, Ming Dai, Xuejun Nie, Wensheng Zhang, Xingli Xu, Jian Li, Hongxin Mu, Xiaolan Liu, Ling Qin, Xiaoqi Zhu, Jun Yan, Minqian Zheng
This study was conducted to detect the expression of miR-19 and Pax6 (Paired box protein 6) in human osteosarcoma cells and the effects on biological characteristics of osteosarcoma cells. Quantitative real-time polymerase chain reaction was used to detect the expression of Pax6 and miR-19 in normal human osteoblasts (hFOB 1.19) and osteosarcoma cell lines (U2OS, Saos-2, and MG-63). Results showed that miR-19 was significantly upregulated in osteosarcoma cell lines compared with that in hFOB 1.19 cells, while the expression of Pax6 messenger RNA was significantly downregulated...
January 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29344218/atra-increases-iodine-uptake-and-inhibits-the-proliferation-and-invasiveness-of-human-anaplastic-thyroid-carcinoma-sw1736-cells-involvement-of-%C3%AE-catenin-phosphorylation-inhibition
#15
Ling Lan, Spyros Basourakos, Dai Cui, Xuemei Zuo, Wei Deng, Lili Huo, Hailing Chen, Guoying Zhang, Lili Deng, Bingyin Shi, Yong Luo
All-trans-retinoic acid (ATRA) can enhance iodine uptake capability of thyroid tumors, but the mechanisms remain poorly understood. The aim of the present study was to investigate the effects of ATRA on isotope susceptibility, proliferation and invasion of anaplastic thyroid carcinoma (ATC) and potential mechanisms. SW1736 cells were treated with 1 µmol/l ATRA or 1% ethanol for 5 days. A cell line stably expressing β-catenin-shRNA was established. An iodine uptake assay was performed using 125I. Proliferation and invasiveness were tested using MTT and Transwell assays, respectively...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344178/long-non-coding-rna-lnctcf7-activates-the-wnt-%C3%AE-catenin-pathway-to-promote-metastasis-and-invasion-in-colorectal-cancer
#16
Tengyu Li, Jing Zhu, Xin Wang, Guowei Chen, Lie Sun, Shuai Zuo, Junling Zhang, Shanwen Chen, Ju Ma, Zihao Yao, Youwen Zheng, Zeyang Chen, Yucun Liu, Pengyuan Wang
Long non-coding RNA (Lnc)TCF7 is a novel lncRNA that is involved in tumorigenesis. Previous studies have revealed that lncTCF7 serves an essential role in maintaining cancer stem cell self-renewal; however, the functions of lncTCF7 in colorectal cancer (CRC) remain unknown. Therefore, the present study aimed to investigate the role of lncTCF7 in CRC. LncTCF7 was upregulated in 52/58 CRC tissues, and its expression correlated with tumor size, lymph metastasis and tumor-node-metastasis stage in CRC. Knocking down lncTCF7 in colon cancer cell lines decreased cell proliferation, migration and invasion, while lncTCF7 overexpression showed opposite changes...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344154/study-of-mir-10b-regulatory-mechanism-for-epithelial-mesenchymal-transition-invasion-and-migration-in-nasopharyngeal-carcinoma-cells
#17
Weiyi Wang
The aim of the study was to investigate the miR-10b regulatory mechanism for epithelial-mesenchymal transition (EMT) and its effect on the proliferation and migration of nasopharyngeal carcinoma cells. RT-qPCR was used to detect the expression of miR-10b in CNE1 nasopharyngeal carcinoma cell line. The NP69 nasopharyngeal mucosal cell line was used to determine the expression of miR-10b after infection with lentivirus. The effect of miR-10b on the proliferation of NP69 was examined using cell counting kit-8...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344152/regulation-of-autophagy-inhibition-and-inflammatory-response-in-glioma-by-wnt-signaling-pathway
#18
Tongxin Wang, Zhixia Chen, Wei Zhang
The objective of this study was to investigate the mechanism of the function of Wnt signaling pathway in regulating autophagy and inflammatory response in glioma cells. Human brain glioma cells U118 were selected and divided into three groups: i) the Wnt signaling inhibitor IWR-1 group (the observation group); ii) the PBS negative control group (the PBS group) and iii) the blank control group. After 24 h culture, Wnt5a/β-catenin protein, autophagy marker, microtubule-associated-proteins-1A1B-light-chain-3C (LC-3) II and Beclin I, and inflammatory factors IL-6 and TNF-α protein expression levels were evaluated using western blotting...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344117/wnt-inhibitor-xav939-suppresses-the-viability-of-small-cell-lung-cancer-nci-h446-cells-and-induces-apoptosis
#19
Wenxuan Guo, Fangzhen Shen, Wenjing Xiao, Jing Chen, Fei Pan
Small cell lung cancer (SCLC) is the most aggressive type of lung cancer due to a fast tumor doubling time and early hematogenous spread. Advances in the treatment of non-small cell lung cancer using targeted therapies having been made, but no targeted drugs for SCLC have been approved. The Wnt signaling pathway is associated with tumor progression and metastasis; therefore, the inhibition of Wnt/β-catenin signaling is a strategy for anticancer drugs. Tankyrase 1 (TNKS1) is overexpressed in a number of types of cancer and XAV939 is a small molecule inhibitor of TNKS1 which may inhibit tumor growth...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343851/ndrg2-facilitates-colorectal-cancer-differentiation-through-the-regulation-of-skp2-p21-p27-axis
#20
Liangliang Shen, Xuan Qu, Huichen Li, Chunsheng Xu, Mengying Wei, Qinhao Wang, Yi Ru, Bei Liu, Yuqiao Xu, Kai Li, Junbi Hu, Lifeng Wang, Yongzheng Ma, Mengyang Li, Xiaofeng Lai, Lei Gao, Kaichun Wu, Libo Yao, Jianyong Zheng, Jian Zhang
Poorly differentiated colorectal cancers (CRCs) are more aggressive and lack targeted therapies. We and others previously reported the predominant role of tumor-suppressor NDRG2 in promoting CRC differentiation, but the underlying mechanism is largely unknown. Herein, we demonstrate that NDRG2 induction of CRC cell differentiation is dependent on the repression of E3 ligase Skp2 activity. In patients and Ndrg2 knockout mice, NDRG2 and Skp2 are negatively correlated and associated with cell differentiation stage...
January 18, 2018: Oncogene
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