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https://www.readbyqxmd.com/read/29778424/nrage-confers-poor-prognosis-and-promotes-proliferation-invasion-and-chemoresistance-in-gastric-cancer
#1
Xiaodi Jiang, Xiaofeng Jiang, Zhi Yang
Neurotrophin receptor-interacting melanoma antigen-encoding protein (NRAGE) is a type II melanoma-associated antigen that plays an essential role in various processes, including cell differentiation and apoptosis. NRAGE has been shown to act as a cancer-related protein, with complex and apparently contradictory functions in a variety of cancers. In the current study, we examined the expression of NRAGE protein in 169 gastric cancer samples. NRAGE upregulation was correlated with advanced TNM stage, local invasion, and poor survival...
May 17, 2018: Gene
https://www.readbyqxmd.com/read/29776156/realizations-of-highly-heterogeneous-collagen-networks-via-stochastic-reconstruction-for-micromechanical-analysis-of-tumor-cell-invasion
#2
Hanqing Nan, Long Liang, Guo Chen, Liyu Liu, Ruchuan Liu, Yang Jiao
Three-dimensional (3D) collective cell migration in a collagen-based extracellular matrix (ECM) is among one of the most significant topics in developmental biology, cancer progression, tissue regeneration, and immune response. Recent studies have suggested that collagen-fiber mediated force transmission in cellularized ECM plays an important role in stress homeostasis and regulation of collective cellular behaviors. Motivated by the recent in vitro observation that oriented collagen can significantly enhance the penetration of migrating breast cancer cells into dense Matrigel which mimics the intravasation process in vivo [Han et al...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29773648/ten-eleven-translocation-2-demethylates-the-mmp9-promoter-and-its-down-regulation-in-preeclampsia-impairs-trophoblast-migration-and-invasion
#3
Xiaoliang Li, Chunlian Wu, Ying Shen, Ke Wang, Li Tang, Mi Zhou, Ming Yang, Tianying Pan, Xinghui Liu, Wenming Xu
Preeclampsia is the most common clinical disorder in pregnancy and might result from disordered uterine environments caused by epigenetic modifications, including deregulation of DNA methylation/demethylation. Recent research has indicated that 5-hydroxymethylcytosine (5hmC), a DNA base derived from 5-methylcytosine (5mC) via oxidation by ten-eleven translocation (TET) enzymes, is involved in DNA methylation-related plasticity. Here, we report that TET2 expression and 5hmC abundance are significantly altered in the placentas from preeclampsia patients...
May 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29770705/gingival-mesenchymal-stem-cells-outperform-haploidentical-dental-pulp-derived-mesenchymal-stem-cells-in-proliferation-rate-migration-ability-and-angiogenic-potential
#4
Ioannis Angelopoulos, Claudia Brizuela, Maroun Khoury
High donor variation makes comparison studies between different dental sources dubious. Dental tissues offer a rare opportunity for comparing the biological characteristics of haploidentical mesenchymal stem cells (MSCs) isolated from the same donor. The objective was to identify the optimal dental source of MSCs through a biological and functional comparison of haploidentical MSCs from gingival (GMSCs) and dental pulp stem cells (DPSCs) focusing mainly on their angiogenic potential. The comparison study included (1) surface markers expression, (2) mesodermal differentiation capacity (chondrogenic, adipogenic, and osteogenic), (3) proliferation, (4) migration potential, (5) ability to form colony units, and (6) angiogenic potential in vitro and in vivo...
January 1, 2018: Cell Transplantation
https://www.readbyqxmd.com/read/29770522/conclusive-evidence-for-oct4-transcription-in-human-cancer-cell-lines-possible-role-of-a-small-oct4-positive-cancer-cell-population
#5
Tomoyuki Miyamoto, Nobuhiko Mizuno, Mitsuko Kosaka, Yoko Fujitani, Eiji Ohno, Aiji Ohtsuka
The role of octamer-binding transcription factor 4 (OCT4) in human cancer is still debated. Although many studies have been published on human OCT4, determining which of the findings are accurate or which are false-positives is currently challenging. We thus developed the most reliable method to date for highly specific and comprehensive detection of genuine OCT4-transcript variants without false-positive results. Our results provided clear evidence that the transcripts of OCT4A, OCT4B, OCT4B1 and other novel splicing variants are indeed present in many cancer cell lines, but are rarely detected in normal tissue-derived differentiated cells...
May 17, 2018: Stem Cells
https://www.readbyqxmd.com/read/29770354/3d-co-culture-system-of-tumor-associated-macrophages-and-ovarian-cancer-cells
#6
Lingli Long, Mingzhu Yin, Wang Min
Ovarian cancer is fairly unique in that ovarian carcinoma cells can detach and spread directly through peritoneal cavity. It has been unclear, however, how detached cancer cells survive in the peritoneum and form spheroid structure. We have recently reported that there is a strong correlation between Tumor-associated macrophages (TAMs)-associated spheroid and clinical pathology of ovarian cancer, and that TAMs promote spheroid formation and tumor growth at early stages of transcoelomic metastasis in orthotopic mouse models...
April 20, 2018: Bio-protocol
https://www.readbyqxmd.com/read/29765523/overexpressing-tpte2-tpip-a-homolog-of-the-human-tumor-suppressor-gene-pten-rescues-the-abnormal-phenotype-of-the-pten-mutant
#7
Daniel F Lusche, Emma C Buchele, Kanoe B Russell, Benjamin A Soll, Michele I Vitolo, Michael R Klemme, Deborah J Wessels, David R Soll
One possible approach to normalize mutant cells that are metastatic and tumorigenic, is to upregulate a functionally similar homolog of the mutated gene. Here we have explored this hypothesis by generating an overexpressor of TPTE2 ( TPIP ), a homolog of PTEN , in PTEN-/- mutants, the latter generated by targeted mutagenesis of a human epithelial cell line. Overexpression of TPTE2 normalized phenotypic changes associated with the PTEN mutation. The PTEN-/- -associated changes rescued by overexpressing TPTE2 included 1) accelerated wound healing in the presence or absence of added growth factors (GFs), 2) increased division rates on a 2D substrate in the presence of GFs, 3) adhesion and viability on a 2D substrate in the absence of GFs, 4) viability in a 3D Matrigel model in the absence of GFs and substrate adhesion 5) loss of apoptosis-associated annexin V cell surface binding sites...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29765422/the-effect-of-pulsatile-flow-on-bmsc-derived-endothelial-like-cells-in-a-small-sized-artificial-vessel-made-by-3-dimensional-bioprinting
#8
Kang Woog Lee, Dae-Hyun Kim, Jun Hee Lee, Young-Nam Youn
Replacement of small-sized vessels is still challenging. This study is aimed at investigating the possibility of small-sized artificial vessels made by 3-dimensional bioprinting and the effect of pulsatile flow on bMSC-derived endothelial-like cells. Cells were harvested from rabbit bone marrow and primary cultured with or without growth factors. Endothelial differentiation was confirmed by the Matrigel tube formation assay, Western blot, and qRT-PCR. In addition, embedment of endothelial-like cells in an artificial vessel was made by 3-dimensional bioprinting, and the pulsatile flow was performed...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29763471/importance-of-extracellular-matrix-and-growth-state-for-the-ea-hy926-endothelial-cell-response-to-polyunsaturated-fatty-acids
#9
Youjia Du, Carla G Taylor, Harold M Aukema, Peter Zahradka
Consumption of different PUFAs (polyunsaturated fatty acids) can induce functional changes in blood vessels via endothelial cells, which interact with dietary factors in the circulation. The basement membrane that separates the endothelium from the smooth muscle cells of the medial layer can also influence the functional state of endothelial cells. However, the effect of basement membrane on the endothelial response to dietary PUFAs in relation to growth state (e.g. proliferation versus quiescence) has never been investigated...
2018: PloS One
https://www.readbyqxmd.com/read/29760696/podosomes-but-not-the-maturation-status-determine-the-protease-dependent-3d-migration-in-human-dendritic-cells
#10
Céline Cougoule, Claire Lastrucci, Romain Guiet, Rémi Mascarau, Etienne Meunier, Geanncarlo Lugo-Villarino, Olivier Neyrolles, Renaud Poincloux, Isabelle Maridonneau-Parini
Dendritic cells (DC) are professional Antigen-Presenting Cells scattered throughout antigen-exposed tissues and draining lymph nodes, and survey the body for pathogens. Their ability to migrate through tissues, a 3D environment, is essential for an effective immune response. Upon infection, recognition of Pathogen-Associated Molecular Patterns (PAMP) by Toll-like receptors (TLR) triggers DC maturation. Mature DC (mDC) essentially use the protease-independent, ROCK-dependent amoeboid mode in vivo , or in collagen matrices in vitro ...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29760557/uca1-promotes-cell-proliferation-and-invasion-and-inhibits-apoptosis-through-regulation-of-the-mir129-sox4-pathway-in-renal-cell-carcinoma
#11
Qian Liu, Yang Li, Weiling Lv, Guangwei Zhang, Xin Tian, Xiaodong Li, Hepeng Cheng, Chaoyang Zhu
Background: Renal cell carcinoma (RCC) is the most common cancer in kidney malignancies. UCA1 has been identified as an oncogenic lncRNA in multiple cancers, including RCC. However, the underlying molecular mechanism of UCA1 involved in RCC progression is far from being addressed. Methods: Reverse-transcription quantitative polymerase chain reaction (RT-qPCR) assays were used to measure expressions of UCA1, miR129, and SOX4 mRNA. Western blot assays were employed to detect SOX4 protein expression...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29755672/inhibition-of-mtor-complex-2-restrains-tumor-angiogenesis-in-multiple-myeloma
#12
Aurelia Lamanuzzi, Ilaria Saltarella, Vanessa Desantis, Maria Antonia Frassanito, Patrizia Leone, Vito Racanelli, Beatrice Nico, Domenico Ribatti, Paolo Ditonno, Marcella Prete, Antonio Giovanni Solimando, Francesco Dammacco, Angelo Vacca, Roberto Ria
The mammalian Target of Rapamycin (mTOR) is an intracellular serine/threonine kinase that mediates intracellular metabolism, cell survival and actin rearrangement. mTOR is made of two independent complexes, mTORC1 and mTORC2, activated by the scaffold proteins RAPTOR and RICTOR, respectively. The activation of mTORC1 triggers protein synthesis and autophagy inhibition, while mTORC2 activation promotes progression, survival, actin reorganization, and drug resistance through AKT hyper-phosphorylation on Ser473...
April 17, 2018: Oncotarget
https://www.readbyqxmd.com/read/29752774/mesenchymal-stem-cells-promote-lymphangiogenic-properties-of-lymphatic-endothelial-cells
#13
Jan W Robering, Annika Weigand, Romy Pfuhlmann, Raymund E Horch, Justus P Beier, Anja M Boos
Lymphatic metastasis is one of the main prognostic factors concerning long-term survival of cancer patients. In this regard, the molecular mechanisms of lymphangiogenesis are still rarely explored. Also, the interactions between stem cells and lymphatic endothelial cells (LEC) in humans have not been well examined. Therefore, the main objective of this study was to assess the interactions between mesenchymal stem cells (MSC) and LEC using in vitro angiogenesis assays. Juvenile LEC were stimulated with VEGF-C, bFGF, MSC-conditioned medium (MSC-CM) or by co-culture with MSC...
May 11, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29752261/nk-cell-editing-mediates-epithelial-to-mesenchymal-transition-via-phenotypic-and-proteomic-changes-in-melanoma-cell-lines
#14
Leticia Huergo Zapico, Monica Parodi, Claudia Cantoni, Chiara Lavarello, Juan L Fernández-Martínez, Andrea Petretto, Enrique J DeAndrés-Galiana, Mirna Balsamo, Alejandro López-Soto, Gabriella Pietra, Mattia Bugatti, Enrico Munari, Marcella Marconi, Maria Cristina Mingari, William Vermi, Lorenzo Moretta, Segundo Gonzalez, Massimo Vitale
Tumor cell plasticity is a major obstacle for the cure of malignancies as it makes tumor cells highly adaptable to micro-environmental changes, enables their phenotype switching among different forms, and favors the generation of pro-metastatic tumor cell subsets. Phenotype switching towards more aggressive forms involves different functional, phenotypic and morphologic changes, which are often related to the process known as Epithelial-Mesenchymal Transition (EMT). In this study, we report NK cells may increase the malignancy of melanoma cells by inducing changes relevant to EMT and, more broadly, to phenotype switching from proliferative to invasive forms...
May 11, 2018: Cancer Research
https://www.readbyqxmd.com/read/29750423/nrp1-knockdown-promotes-the-migration-and-invasion-of-human-neuroblastoma-derived-sk%C3%A2-n%C3%A2-as-cells-via-the-activation-of-%C3%AE-1-integrin-expression
#15
Yoshiaki Ishizuka, Tsugumichi Koshinaga, Takayuki Hirano, Eri Nagasaki-Maeoka, Yosuke Watanabe, Reina Hoshi, Shinsuke Yoshizawa, Kiminobu Sugito, Hiroyuki Kawashima, Shota Uekusa, Noboru Fukuda, Masayoshi Soma, Kyoko Fujiwara
Neuropilin 1 (NRP1) is a transmembrane glycoprotein, which regulates many aspects of cellular function by functioning as co-receptor of various ligands. Recent studies have suggested that NRP1 promotes tumorigenesis, not only by activating the growth of tumor vessels, but also by activating the growth or migration of tumor cells themselves. The present study was performed to elucidate the roles of NRP1 in the development and/or progression of neuroblastoma (NB). In contrast to previous observations in various types of cancer, the analysis of public datasets indicated that lower levels of NRP1 expression were significantly associated with a shorter survival period of patients with NB...
May 7, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29750303/anticancer-effects-of-isofraxidin-against-a549-human-lung-cancer-cells-via-the-egfr-signaling-pathway
#16
Han Zhang, Qian-Qian Feng, Jian-Hua Gong, Jing-Ping Ma
Lung cancer is the leading cause of mortality due to tumor malignancy worldwide. In recent years, the treatment of lung cancer with chemotherapy has demonstrated notable resistance and insensitivity. Therefore, it is of great importance to investigate anti‑lung cancer drugs with high efficiency and low toxicity. In the present study, the effects of isofraxidin on lung cancer cells and the associated mechanisms were investigated. The results revealed that, in vivo and in vitro, isofraxidin exhibited marked inhibitory effects on the A549 lung cancer cell line...
May 3, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29749486/effects-of-obatoclax-combined-with-gemcitabine-on-the-biological-activity-of-pancreatic-cancer-cells-under-hypoxic-conditions
#17
Xin-Fang Hou, Shuai Li, Chen Wu, Ke Li, Shu-Ning Xu, Ju-Feng Wang
The present study aimed to investigate the effects of obatoclax (OBX) combined with gemcitabine (GEM) treatment on the proliferation, migration, invasion and epithelial‑mesenchymal transition (EMT) related proteins of pancreatic cancer cell line BxPC‑3 under hypoxic conditions. Protein expression levels of hypoxia‑inducible factor 1α (HIF‑1α) in BxPC‑3 pancreatic cancer cells under normoxic and hypoxic conditions were detected by western blotting. Cells were divided into four groups: Normoxia group, hypoxia group, OBX group and OBX + GEM group...
April 26, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29742177/increased-%C3%AE-actinin-1-destabilizes-e-cadherin-based-adhesions-and-associates-with-poor-prognosis-in-basal-like-breast-cancer
#18
Bianca Kovac, Tomi P Mäkelä, Tea Vallenius
The controlled formation and stabilization of E-cadherin-based adhesions is vital for epithelial integrity. This requires co-operation between the E-cadherin-based adhesions and the associated actin cytoskeleton. In cancer, this co-operation often fails, predisposing cells to migration through molecular mechanisms that have only been partially characterized. Here, we demonstrate that the actin filament cross-linker α-actinin-1 is frequently increased in human breast cancer. In mammary epithelial cells, the increased α-actinin-1 levels promote cell migration and induce disorganized acini-like structures in Matrigel...
2018: PloS One
https://www.readbyqxmd.com/read/29741292/microrna-150-restores-endothelial-cell-function-and-attenuates-vascular-remodeling-by-targeting-ptx3-through-the-nf-%C3%AE%C2%BAb-signaling-pathway-in-mice-with-acute-coronary-syndrome
#19
Xian-Yuan Luo, Xiao-Qing Zhu, Ying Li, Xue-Bin Wang, Wei Yin, Yi-Shan Ge, Wei-Min Ji
MicroRNAs have been known to function as important regulators in the vascular system, with various physiopathological effects such as vascular remodeling and hypertension modulation. We aimed to explore whether microRNA-150 (miR-150) regulates endothelial cell function and vascular remodeling in acute coronary syndrome (ACS), and the involvement of PTX3 and NF-κB signaling pathway. Ten normal mice and sixty ApoE-/- mice were chosen, and their coronary artery tissues and endothelial cells were extracted. ApoE-/- mice were injected with a series of inhibitors or mimics for miR-150, or siRNA against PTX3...
May 9, 2018: Cell Biology International
https://www.readbyqxmd.com/read/29739921/microrna-181a-promotes-angiogenesis-in-colorectal-cancer-by-targeting-srcin1-to-promote-the-src-vegf-signaling-pathway
#20
Wu Sun, Xiaojun Wang, Jialu Li, Chaoying You, Pan Lu, Huijin Feng, Yan Kong, Haiyang Zhang, Yanqing Liu, Ruihua Jiao, Xi Chen, Yi Ba
Colorectal cancer (CRC) is a very common metastatic tumor with active angiogenesis that requires active angiogenesis. Recently, increased microRNA-181a-5p (miR-181a) expression was found to be significantly associated with liver metastasis and poor outcome in CRC patients. In this study, the role of miR-181a in tumor angiogenesis was further investigated. Capillary tube formation assays were used to demonstrate the ability of miR-181a to promote tumor angiogenesis. Bioinformatics analyses identified SRC kinase signaling inhibitor 1 (SRCIN1) as a potential target of miR-181a...
April 19, 2018: Cell Death & Disease
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