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https://www.readbyqxmd.com/read/28346728/nubpl-a-novel-metastasis-related-gene-promotes-colorectal-carcinoma-cell-motility-by-inducing-emt
#1
Yuhui Wang, Nan Wu, Donglin Sun, Haiming Sun, Dandan Tong, Duo Liu, Bo Pang, Su Li, Jia Wei, Jialin Dai, Yang Liu, Jing Bai, Jingshu Geng, Songbin Fu, Yan Jin
NUBPL is an assembly factor for human mitochondrial complex I, which is the biggest member of mitochondrial respiratory chain. However, the relationship between NUBPL and carcinoma progression remains unknown. In this study, NUBPL was characterized for its role in colorectal cancer (CRC) and the underlying molecular mechanisms. Data (n=197) from Oncomine database revealed that mRNA levels of NUBPL were remarkably overexpressed in CRC tissues compared with normal tissues. In addition, immunohistochemical analysis of 75 pairs of CRC and nontumorous tissues demonstrated that expression level of NUBPL was significantly higher in CRC tissues, and its expression level was positively associated with lymph node metastasis (P=0...
March 27, 2017: Cancer Science
https://www.readbyqxmd.com/read/28346437/friction-forces-position-the-neural-anlage
#2
Michael Smutny, Zsuzsa Ákos, Silvia Grigolon, Shayan Shamipour, Verena Ruprecht, Daniel Čapek, Martin Behrndt, Ekaterina Papusheva, Masazumi Tada, Björn Hof, Tamás Vicsek, Guillaume Salbreux, Carl-Philipp Heisenberg
During embryonic development, mechanical forces are essential for cellular rearrangements driving tissue morphogenesis. Here, we show that in the early zebrafish embryo, friction forces are generated at the interface between anterior axial mesoderm (prechordal plate, ppl) progenitors migrating towards the animal pole and neurectoderm progenitors moving in the opposite direction towards the vegetal pole of the embryo. These friction forces lead to global rearrangement of cells within the neurectoderm and determine the position of the neural anlage...
March 27, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28346429/deletion-of-endothelial-cell-specific-liver-kinase-b1-increases-angiogenesis-and-tumor-growth-via-vascular-endothelial-growth-factor
#3
W Zhang, Y Ding, C Zhang, Q Lu, Z Liu, K Coughlan, I Okon, M-H Zou
Liver kinase B1 (LKB1) is a serine/threonine protein kinase ubiquitously expressed in mammalian cells. It was first identified in Peutz-Jeghers syndrome as a tumor suppressor gene. Whether endothelial LKB1 regulates angiogenesis and tumor growth is unknown. In this study, we generated endothelial cell-specific LKB1-knockout (LKB1(endo-/-)) mice by crossbreeding vascular endothelial-cadherin-Cre mice with LKB1(flox/flox) mice. Vascular endothelial growth factor (VEGF) level was highly co-stained in endothelial cells but not in macrophages in LKB1(endo-/-) mice...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28345832/metformin-inhibits-migration-and-invasion-of-cholangiocarcinoma-cells
#4
Son Xuan Trinh, Huyen Thi Bich Nguyen, Kween Saimuang, Virapong Prachayasittikul, Waraporn Chan On
Background: Metformin is an oral anti-diabetic agent that has been widely prescribed for treatment of type II diabetes. Anti-cancer properties of metformin have been revealed for numerous human malignancies including cholangiocarcinoma (CCA) with anti-proliferative effects in vitro. However, effects on CCA cell migration and invasion have not been fully investigated. The present study aimed to explore the inhibitory effects of metformin on motility, migration and invasion of the CCA cell line HuCCT1, and examine molecular mechanisms underlying metformin effects...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345456/overexpression-of-mir-10b-in-colorectal-cancer-patients-correlation-with-twist-1-and-e-cadherin-expression
#5
Rania Abdelmaksoud-Dammak, Nour Chamtouri, Mouna Triki, Amena Saadallah-Kallel, Wajdi Ayadi, Slim Charfi, Abdelmajid Khabir, Lobna Ayadi, Tahia Sallemi-Boudawara, Raja Mokdad-Gargouri
MicroRNAs are emergent players of epigenetics that function as oncogenes or tumor suppressors and that have been implicated in regulating diverse cellular pathways. MiR-10b is an oncogenic microRNA involved in tumor invasion and metastasis in various cancers. Our data have shown that miR-10b is overexpressed in colorectal cancer samples in comparison with non-tumorous adjacent mucosa (p = 0.0025) and that it is associated with severe features such as tumor size >5 cm (p = 0.023), distant metastasis (p = 0...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28344640/the-effects-of-antiviral-treatment-on-breast-cancer-cell-line
#6
Madina Shaimerdenova, Orynbassar Karapina, Damel Mektepbayeva, Kenneth Alibek, Dana Akilbekova
BACKGROUND: Recent studies have revealed the positive antiproliferative and cytotoxic effects of antiviral agents in cancer treatment. The real effect of adjuvant antiviral therapy is still controversial due to the lack of studies in biochemical mechanisms. Here, we studied the effect of the antiviral agent acyclovir on morphometric and migratory features of the MCF7 breast cancer cell line. Molecular levels of various proteins have also been examined. METHODS: To evaluate and assess the effect of antiviral treatment on morphometric, migratory and other cellular characteristics of MCF7 breast cancer cells, the following experiments were performed: (i) MTT assay to measure the viability of MCF7 cells; (ii) Colony formation ability by soft agar assay; (iii) Morphometric characterization by immunofluorescent analysis using confocal microscopy; (iv) wound healing and transwell membrane assays to evaluate migration and invasion capacity of the cells; (v) ELISA colorimetric assays to assess expression levels of caspase-3, E-cadherin and enzymatic activity of aldehyde dehydrogenase (ALDH)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28344092/the-over-expression-of-long-non-coding-rna-anril-promotes-epithelial-mesenchymal-transition-by-activating-the-atm-e2f1-signaling-pathway-in-pancreatic-cancer-an-in-vivo-and-in-vitro-study
#7
Shi Chen, Jia-Qiang Zhang, Jiang-Zhi Chen, Hui-Xing Chen, Fu-Nan Qiu, Mao-Lin Yan, Yan-Ling Chen, Cheng-Hong Peng, Yi-Feng Tian, Yao-Dong Wang
This study aims to investigate the roles of lncRNA ANRIL in epithelial-mesenchymal transition (EMT) by regulating the ATM-E2F1 signaling pathway in pancreatic cancer (PC). PC rat models were established and ANRIL overexpression and interference plasmids were transfected. The expression of ANRIL, EMT markers (E-cadherin, N-cadherin and Vimentin) and ATM-E2F1 signaling pathway-related proteins (ATM, E2F1, INK4A, INK4B and ARF) were detected. Small molecule drugs were applied to activate and inhibit the ATM-E2F1 signaling pathway...
March 23, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28343069/linc00152-promotes-cancer-progression-in-hepatitis-b-virus-associated-hepatocellular-carcinoma
#8
Xin Deng, Xiao Fang Zhao, Xing Qiu Liang, Ran Chen, Yi Feng Pan, Jian Liang
BACKGROUND: The X protein (HBx) plays as a key role in hepatocarcinogenesis associated with hepatitis B virus (HBV) infections. The study aimed to figure out the role of Linc00152 in hepatocellular carcinoma (HCC) and the association between the expression levels of Linc00152 and HBx. METHODS: QRT-PCR assays were applied to analyzed the expression levels of Linc00152 and HBx. Kaplan-Meier survival curve was performed to identify the association between LINC00152 and the over survival time (OS) in HCC patients...
March 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28342240/combination-of-growth-pattern-and-tumor-regression-identifies-a-high-risk-group-in-neoadjuvant-treated-rectal-cancer-patients
#9
Jonas Jessberger, Katharina Erlenbach-Wünsch, Rebecca Posselt, Marlen Haderlein, Abbas Agaimy, Rainer Fietkau, Arndt Hartmann, Luitpold Distel
AIM: In this study we analyzed the prognostic effect of E-Cadherin expression, the growth pattern of the tumor and the regression grade in a rectal cancer cohort treated with neoadjuvant radiochemotherapy. METHOD: 223 patients with rectal cancer treated with neoadjuvant radiochemotherapy followed by surgery were included. 88 biopsies prior to radiochemotherapy and 213 tumor resections with an average of 55 days post-RCT were investigated. Protein expression of E-cadherin and tumor growth pattern (solid-glandular vs...
March 25, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28342021/establishment-of-immortalized-mouse-intestinal-epithelial-cells-line-and-study-of-effects-of-arg-arg-on-inflammatory-response
#10
Kang Zhan, Maocheng Jiang, Yannan Sui, Kang Yan, Miao Lin, Guoqi Zhao
Primary mouse intestinal epithelial cells (MIEs) are not ideal models for long-term culture in vitro and a limited amount of approximate three generations. In addition, the mechanism that arginine-arginine dipeptide (Arg-Arg) regulates mouse intestinal inflammatory response remains unknown. Therefore, the aim of this study was to establish immortal MIEs and study the effects of Arg-Arg on inflammatory response after challenging the MIEs with lipopolysaccharide (LPS) or staphylococcal enterotoxin C (rSEC). Our data showed that immortalized MIEs could be cultured over 100 generations...
March 24, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28341962/tumour-suppressor-ep300-a-modulator-of-paclitaxel-resistance-and-stemness-is-downregulated-in-metaplastic-breast-cancer
#11
Muhammad Asaduzzaman, Stephanie Constantinou, Haoxiang Min, John Gallon, Meng-Lay Lin, Poonam Singh, Selina Raguz, Simak Ali, Sami Shousha, R Charles Coombes, Eric W-F Lam, Yunhui Hu, Ernesto Yagüe
PURPOSE: We have previously described a novel pathway controlling drug resistance, epithelial-to-mesenchymal transition (EMT) and stemness in breast cancer cells. Upstream in the pathway, three miRs (miR-106b, miR-93 and miR-25) target EP300, a transcriptional activator of E-cadherin. Upregulation of these miRs leads to the downregulation of EP300 and E-cadherin with initiation of an EMT. However, miRs regulate the expression of many genes, and the contribution to EMT by miR targets other than EP300 cannot be ruled out...
March 24, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28341659/chronic-microaspiration-of-bile-acids-induces-lung-fibrosis-through-multiple-mechanisms-in-rats
#12
Bi Chen, Wen Jie You, Xue Qing Liu, Shan Xue, Hui Qin, Han Dong Jiang
Gastroesophageal reflux (GER) and microaspiration of duodenogastric refluxate have been recognized as a risk factor for pulmonary fibrosis. Recent evidence implicates that bile acid microaspiration may contribute to the development of lung fibrosis. However, the molecular evidences are scarce and the underlying mechanisms remain to be elucidated. We have recently demonstrated that bile acids induce activation of alveolar epithelial cells and lung fibroblasts in vitro In this study, a rat model of bile acid microaspiration was established by weekly intratracheal instillation of three major bile acids including chenodeoxycholic acid (CDCA), deoxycholic acid (DCA) and lithocholic acid (LCA) ...
March 24, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28339614/integrin-linked-kinase-regulates-syncytialization-of-bewo-trophoblast-cells%C3%A2
#13
Trina M Butler, Justin A Pater, Daniel J MacPhee
During placental development, mononuclear villous cytotrophoblast cells differentiate and fuse with the overlying syncytiotrophoblast. This process requires the dissolution of E-cadherin (CDH1)-containing adherens junctions in cytotrophoblast. Integrin linked kinase (ILK) can downregulate CDH1 through poly (ADP-ribose) polymerase 1 (PARP1) and Snail-1 (SNAI1) during epithelial-mesenchymal transition. ILK is known to be expressed in cytotrophoblast; thus, the role of a potential ILK-PARP1-SNAI1 pathway in aiding trophoblast syncytialization via the downregulation of CDH1 was examined...
January 27, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339476/transgenic-mice-overexpressing-desmocollin-2-dsc2-develop-cardiomyopathy-associated-with-myocardial-inflammation-and-fibrotic-remodeling
#14
Andreas Brodehl, Darrell D Belke, Lauren Garnett, Kristina Martens, Nelly Abdelfatah, Marcela Rodriguez, Catherine Diao, Yong-Xiang Chen, Paul M K Gordon, Anders Nygren, Brenda Gerull
BACKGROUND: Arrhythmogenic cardiomyopathy is an inherited heart muscle disorder leading to ventricular arrhythmias and heart failure, mainly as a result of mutations in cardiac desmosomal genes. Desmosomes are cell-cell junctions mediating adhesion of cardiomyocytes; however, the molecular and cellular mechanisms underlying the disease remain widely unknown. Desmocollin-2 is a desmosomal cadherin serving as an anchor molecule required to reconstitute homeostatic intercellular adhesion with desmoglein-2...
2017: PloS One
https://www.readbyqxmd.com/read/28339069/transglutaminase-2-is-upregulated-in-primary-hepatocellular-carcinoma-with-early-recurrence-as-determined-by-proteomic-profiles
#15
Hiromi Yamaguchi, Kazumichi Kuroda, Masahiko Sugitani, Tadatoshi Takayama, Kiyoshi Hasegawa, Mariko Esumi
The mechanism of early recurrence of hepato-cellular carcinoma (HCC) is not well understood. To examine whether early intrahepatic metastasis of HCC can be determined by the reliable molecular characteristics of the primary HCC, we focused on early-stage tumors of primary and solitary HCC cases. Proteomic differences were investigated between two groups, 11 early (recurrence within 12 months) and 10 late (no recurrence within 48 months) HCC cases, using two-dimensional fluorescence difference gel electrophoresis...
March 20, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28339056/nobiletin-inhibits-invasion-via-inhibiting-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-pathway-in-slug-expressing-glioma-cells
#16
Xiang Zhang, Kebin Zheng, Chunhui Li, Yonghui Zhao, Heyang Li, Xuguang Liu, Yinbo Long, Junchao Yao
Epithelial-mesenchymal transition (EMT) is a pivotal event in tumor progression during which cancer cells undergo dramatic changes acquiring highly invasive properties. In this study, we found that nobiletin, a polymethoxylated flavone, suppressed migration and invasion in both U87 and U251 glioma cells. Expression of epithelial markers (E-cadherin and occludin) was upregulated; mesenchymal markers (N-cadherin, fibronectin) and the transcriptional factor Slug were downregulated after nobiletin treatment. Transforming growth factor β (TGF-β) was applied to stimulate EMT and the results showed that nobiletin not only influenced basal level cell migration but also prevented TGF-β-triggered migration and EMT, with the AKT/GSK3β/β-catenin signaling pathway greatly involved...
March 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28338646/type-iv-secretion-and-signal-transduction-of-helicobacter-pylori-caga-through-interactions-with-host-cell-receptors
#17
REVIEW
Steffen Backert, Nicole Tegtmeyer
Helicobacter pylori is a highly successful human bacterium, which is exceptionally equipped to persistently inhabit the human stomach. Colonization by this pathogen is associated with gastric disorders ranging from chronic gastritis and peptic ulcers to cancer. Highly virulent H. pylori strains express the well-established adhesins BabA/B, SabA, AlpA/B, OipA, and HopQ, and a type IV secretion system (T4SS) encoded by the cag pathogenicity island (PAI). The adhesins ascertain intimate bacterial contact to gastric epithelial cells, while the T4SS represents an extracellular pilus-like structure for the translocation of the effector protein CagA...
March 24, 2017: Toxins
https://www.readbyqxmd.com/read/28338494/combined-knockdown-of-d-dopachrome-tautomerase-and-migration-inhibitory-factor-inhibits-the-proliferation-migration-and-invasion-in-human-cervical-cancer
#18
Qingying Wang, Yingze Wei, Jiawen Zhang
OBJECTIVE: D-dopachrome tautomerase (D-DT) is a homologue of macrophage migration inhibitory factor (MIF) with similar functions. However, the possible biological roles of D-DT in cervical cancer remain unknown so far. METHODS: D-dopachrome tautomerase was assessed by immunohistochemistry in 83 cervical cancer and 31 normal cervix tissues. The stable knockdown of D-DT and MIF by lentivirus-delivered short hairpin RNA was established, and tumor growth was examined in vitro and in vivo...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28338204/nsd2-promotes-osteosarcoma-cell-proliferation-and-metastasis-by-inhibiting-e-cadherin-expression
#19
M-H Lu, M-F Fan, X-D Yu
OBJECTIVE: Osteosarcoma is one of the most common malignant bone tumors. The mechanisms of osteosarcoma development and invasion have been studied for periods of time, yet targeted therapy for improving survival has not been well established. Histone lysine methyltransferase NSD2 was frequently overexpressed in multiple types of cancer such as multiple myeloma, stomach and colon cancer, and the overexpression of it usually associated with aggressiveness tumor type. However, the expression status and function of NSD2 are still ambiguous in osteosarcoma...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337276/microrna-9-regulates-non-small-cell-lung-cancer-cell-invasion-and-migration-by-targeting-eukaryotic-translation-initiation-factor-5a2
#20
Guodong Xu, Guofeng Shao, Qiaoling Pan, Lebo Sun, Dawei Zheng, Minghui Li, Ni Li, Huoshun Shi, Yiming Ni
MicroRNAs (miRNAs) play a critical role in cancer development and progression. Bioinformatics analyses has identified eukaryotic translation initiation factor 5A2 (eIF5A2) as a target of miR-9. In this study, we attempted to determine whether miR-9 regulates non-small cell lung cancer (NSCLC) cell invasion and migration by targeting eIF5A2 We examined eIF5A2 expression using reverse transcription-quantitative PCR (RT-qPCR) and subsequently transfected A549 and NCI-H1299 NSCLC cells with a miR-9 mimic or miR-9 inhibitor to determine the migration and invasive capability of the cells via wound healing assay and Transwell invasion assay, respectively...
2017: American Journal of Translational Research
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