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Cell Adhesion & Migration

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https://www.readbyqxmd.com/read/28524745/actin-cytoskeleton-regulates-functional-anchorage-migration-switch-during-t-cadherin-induced-phenotype-modulation-of-vascular-smooth-muscle-cells
#1
Agne Frismantiene, Emmanouil Kyriakakis, Boris Dasen, Paul Erne, Therese J Resink, Maria Philippova
Vascular smooth muscle cell (SMC) switching between differentiated and dedifferentiated phenotypes is reversible and accompanied by morphological and functional alterations that require reconfiguration of cell-cell and cell-matrix adhesion networks. Studies attempting to explore changes in overall composition of the adhesion nexus during SMC phenotype transition are lacking. We have previously demonstrated that T-cadherin knockdown enforces SMC differentiation, whereas T-cadherin upregulation promotes SMC dedifferentiation...
May 19, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28498731/tissue-transglutaminase-expression-is-necessary-for-adhesion-metastatic-potential-and-cancer-stemness-of-renal-cell-carcinoma
#2
Yesim Bagatur, Ayca Zeynep Ilter Akulke, Ajna Bihorac, Merve Erdem, Dilek Telci
Tissue transglutaminase (TG2) is the ubiquitously expressed member of transglutaminase family and shown to play a critical role in the development and progression of drug resistance malignancies. We have previously showed the association of TG2 upregulation with progression and metastasis of renal cell carcinoma (RCC) and low disease-free survival. In the present study we further investigate the role of TG2 in cell adhesion, migration and invasion of RCC by silencing TG2 expression in Caki-2 and A-498 primary site and Caki-1 and ACHN metastatic site RCC cell lines...
May 12, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28494186/small-interference-itga6-gene-targeting-in-the-human-thymic-epithelium-differentially-regulates-the-expression-of-immunological-synapse-related-genes
#3
Daiane Cristina F Golbert, Eliane Santana-Van-Vliet, Marcelo Ribeiro-Alves, Marbella Maria B da Fonsêca, Ailin Lepletier, Daniella Arêas Mendes-da-Cruz, Guilherme Loss, Vinícius Cotta-de-Almeida, Ana Tereza R Vasconcelos, Wilson Savino
The thymus supports differentiation of T cell precursors. This process requires relocation of developing thymocytes throughout multiple microenvironments of the organ, mainly with thymic epithelial cells (TEC), which control intrathymic T cell differentiation influencing the formation and maintenance of the immunological synapse. In addition to the proteins of the major histocompatibility complex (MHC), this structure is supported by several adhesion molecules. During the process of thymopoiesis, we previously showed that laminin-mediated interactions are involved in the entrance of T-cell precursors into the thymus, as well as migration of differentiating thymocytes within the organ...
May 11, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28471324/the-structure-function-relationships-of-insulin-like-growth-factor-1-ec-in-c2c12-cells
#4
Qian Yi, Jianguo Feng, Ling He, Rongxue Wan, Hui Zeng, Li Yang, Shiyong Wu, Liling Tang
Insulin-like growth factor 1 (IGF1) is a crucial growth factor, that regulates skeletal muscles development during cell growth and repair. Recently, its alternative splicing variant, named IGF1Ec, also named mechano-growth factor (MGF), has gained attentions as a new damage repair factor. However, the structure-function relationships of IGF1Ec have not been fully clarified due to contradictory reports. In this study, we systematically investigated physiologic responses of C2C12 muscle cells to IGF1Ec, IGF1 and MGF E peptide...
May 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28430001/annexins-in-cell-migration-and-adhesion
#5
Thomas Grewal
No abstract text is available yet for this article.
April 21, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28346043/structural-abnormalities-in-the-primary-somatosensory-cortex-and-a-normal-behavioral-profile-in-contactin-5-deficient-mice
#6
Kristel T E Kleijer, Denise van Nieuwenhuize, Henk A Spierenburg, Sara Gregorio-Jordan, Martien J H Kas, J Peter H Burbach
Contactin-5 (Cntn5) is an immunoglobulin cell adhesion molecule that is exclusively expressed in the central nervous system. In view of its association with neurodevelopmental disorders, particularly autism spectrum disorder (ASD), this study focused on Cntn5-positive areas in the forebrain and aimed to explore the morphological and behavioral phenotypes of the Cntn5 null mutant (Cntn5(-/-)) mouse in relation to these areas and ASD symptomatology. A newly generated antibody enabled us to elaborately describe the spatial expression pattern of Cntn5 in P7 wild type (Cntn5(+/+)) mice...
March 27, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28328292/il-6-is-involved-in-malignancy-and-doxorubicin-sensitivity-of-renal-carcinoma-cells
#7
Yanqiang Chen, Jianzhen Liu, Pei Lv, Jiangyan Gao, Mingzheng Wang, Yongjun Wang
Various survival factors such as the pleiotropic cytokine interleukin-6 (IL-6), a major mediator of inflammation and activator of signal transducer and activator of transcription 3 (STAT3), serve to block apoptosis in cancer cells. Our present study revealed that the expression of IL-6, while not other IL-2, IL-4, IL-8, or IL-10, was significantly elevated in resistance of renal carcinoma cells (RCC) when compared with human renal proximal tubule epithelial cell line HK-2. The inhibition of IL-6 by siRNA can suppress the proliferation, migration and invasion of RCC cells and increase the doxorubicin (Dox) sensitivity...
March 22, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28166442/exosomes-in-cancer-theranostic-diamonds-in-the-rough
#8
Marine Cordonnier, Gaëtan Chanteloup, Nicolas Isambert, Renaud Seigneuric, Pierre Fumoleau, Carmen Garrido, Jessica Gobbo
During the last 10 years, exosomes, which are small vesicles of 50-200 nm diameter of endosomal origin, have aroused a great interest in the scientific and clinical community for their roles in intercellular communication in almost all physiological and pathological processes. Most cells can potentially release these nanovesicles that share with the parent cell a similar lipid bilayer with transmembrane proteins and a panel of enclosed soluble proteins such as heat shock proteins and genetic material, thus acting as potential nanoshuttles of biomarkers...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28165857/extracellular-vesicles-on-the-wire
#9
Vincent Hyenne, Jacky G Goetz
No abstract text is available yet for this article.
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28146372/the-isolation-of-morphologically-intact-and-biologically-active-extracellular-vesicles-from-the-secretome-of-cancer-associated-adipose-tissue
#10
Sarah Jeurissen, Glenn Vergauwen, Jan Van Deun, Lore Lapeire, Victoria Depoorter, Ilkka Miinalainen, Raija Sormunen, Rudy Van den Broecke, Geert Braems, Véronique Cocquyt, Hannelore Denys, An Hendrix
Breast cancer cells closely interact with different cell types of the surrounding adipose tissue to favor invasive growth and metastasis. Extracellular vesicles (EVs) are nanometer-sized vesicles secreted by different cell types that shuttle proteins and nucleic acids to establish cell-cell communication. To study the role of EVs released by cancer-associated adipose tissue in breast cancer progression and metastasis a standardized EV isolation protocol that obtains pure EVs and maintains their functional characteristics is required...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28135898/going-live-with-tumor-exosomes-and-microvesicles
#11
Vincent Hyenne, Olivier Lefebvre, Jacky G Goetz
Tumor extracellular vesicles (EVs), including exosomes, emerged as key drivers of the pro-tumorigenic dialog between the tumor mass and its microenvironment by mediating long and short distance communication. In vitro studies defined the capacity of tumor EVs to modify the phenotypes of stromal and tumor cells. These studies are now supported by a growing number of functional in vivo experiments. Remarkably, they allowed the identification of a new role for tumor EVs in priming the pre-metastatic niches (PMN)...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28129015/exosome-secretion-promotes-chemotaxis-of-cancer-cells
#12
Bong Hwan Sung, Alissa M Weaver
Migration of cells toward chemical cues, or chemotaxis, is important for many biologic processes such as immune defense, wound healing and cancer metastasis. Although chemotaxis is thought to occur in cancer cells, it is less well characterized than chemotaxis of professional immune cells such as neutrophils. Here, we show that cancer cell chemotaxis relies on secretion of exosome-type extracellular vesicles. Migration of fibrosarcoma cells toward a gradient of exosome-depleted serum was diminished by knockdown of the exosome secretion regulator Rab27a...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27875097/role-of-exosomes-in-the-protection-of-cellular-homeostasis
#13
Gabriela Desdín-Micó, María Mittelbrunn
Due to their ability to shuttle proteins, lipids and genetic material between distant cells, exosomes promote extensive phenotypic changes in recipient cells, modulating immune responses, cellular migration, cancer metastasis or the spreading of neurotoxic protein aggregates in neurodegenerative diseases. Besides intercellular communication, exosome biogenesis and secretion permit the rapid release of a selective repertoire of compounds, conferring cells with an additional mechanism to fight alterations in protein, lipid or RNA homeostasis during stress or pathological conditions...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27736300/spitting-out-the-demons-extracellular-vesicles-in-glioblastoma
#14
Gwennan André-Grégoire, Julie Gavard
Discovered decades ago, extracellular vesicles (EVs) emerge as dedicated organelles, able to deliver protected, specific cellular cues throughout the organism. While virtually every cell can release EVs, cancer cells co-opted this feature and efficiently unleashed them both in the tumor microenvironment and toward healthy tissues. This might contribute to tumor aggressiveness and spreading. Cancer-derived EVs that contain DNA, mRNA, miRNA, and packed and transmembrane proteins can operate locally or at distance...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27689411/mechanisms-and-functions-of-extracellular-vesicle-release-in-vivo-what-we-can-learn-from-flies-and-worms
#15
Katharina B Beer, Ann Marie Wehman
Cells from bacteria to man release extracellular vesicles (EVs) that contain signaling molecules like proteins, lipids, and nucleic acids. The content, formation, and signaling roles of these conserved vesicles are diverse, but the physiological relevance of EV signaling in vivo is still debated. Studies in classical genetic model organisms like C. elegans and Drosophila have begun to reveal the developmental and behavioral roles for EVs. In this review, we discuss the emerging evidence for the in vivo signaling roles of EVs...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/27589080/syntenin-key-player-in-cancer-exosome-biogenesis-and-uptake
#16
Joanna Fares, Rudra Kashyap, Pascale Zimmermann
Cancer exosomes are gaining considerable amount of attention in basic and applied clinical research for their established role in the modulation of the tumor niche, and their broad-range contribution to tumor-host cross-talk. Supporting evidence to their role in tumorigenesis comes from the observation that exosome secretion, composition and functional effects are all altered as tumors become more aggressive. At the molecular level, the mechanisms underlying exosome biogenesis and uptake are far from being understood...
March 4, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28276928/plectin-deficiency-in-liver-cancer-cells-promotes-cell-migration-and-sensitivity-to-sorafenib-treatment
#17
Chiung-Chi Cheng, Wei-Ting Chao, Chen-Chun Liao, Yu-Hui Tseng, Yen-Chang Clark Lai, Yih-Shyong Lai, Yung-Hsiang Hsu, Yi-Hsiang Liu
Plectin involved in activation of kinases in cell signaling pathway and plays important role in cell morphology and migration. Plectin knockdown promotes cell migration by activating focal adhesion kinase and Rac1-GTPase activity in liver cells. Sorafenib is a multi-targeting tyrosine kinase inhibitor that improves patient survival on hepatocellular carcinoma. The aim of this study is to investigate the correlation between the expression of plectin and cell migration as well as the sensitivity of hepatoma cell lines exposing to sorafenib...
February 17, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28276927/a-fence-barrier-method-of-leading-edge-cell-capture-for-explorative-biochemical-research
#18
Lucas J Wager, Rachael Z Murray, Erik W Thompson, David I Leavesley
The scratch or wound-healing assay is used ubiquitously for investigating re-epithelialisation and has already revealed the importance of cells comprising the leading edge of healing epithelial wounds. However it is currently limited to studying the effect of known biochemical agents on the tissue of choice. Here we present an adaptation that extends the utility of this model to encompass the collection of cells from the leading edge of migrating epithelial sheets making available explorative biochemical analyses...
February 17, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28152318/hedgehog-signaling-stimulates-tenascin-c-to-promote-invasion-of-pancreatic-ductal-adenocarcinoma-cells-through-annexin-a2
#19
Kelly Foley, Stephen Muth, Elizabeth Jaffee, Lei Zheng
Pancreatic adenocarcinoma (PDA) is characterized by a dense desmoplastic reaction that comprises 60-90% of the tumor, while only 10-40% of the tumor is composed of malignant epithelial cells. This desmoplastic reaction is composed of stromal fibroblast cells, extracellular matrix proteins, and immune cells. Accumulating evidence has suggested that the stromal and epithelial cell compartments interact during the pathogenesis of this disease. Therefore, it is important to identify the signaling pathways responsible for this interaction to better understand the mechanisms by which PDA invades and metastasizes...
February 2, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28146373/osthole-inhibited-tgf-%C3%AE-induced-epithelial-mesenchymal-transition-emt-by-suppressing-nf-%C3%AE%C2%BAb-mediated-snail-activation-in-lung-cancer-a549-cells
#20
Haitao Feng, Jin-Jian Lu, Yitao Wang, Lixia Pei, Xiuping Chen
Epithelial-mesenchymal transition (EMT), the transdifferentiation of epithelial cells into mesenchymal cells, has been implicated in the metastasis and provides novel strategies for cancer therapy. Osthole (OST), a dominant active constituent of Chinese herb Cnidium monnieri, has been reported to inhibit cancer metastasis while the mechanisms remains unclear. Here, we studied the inhibitory effect and mechanisms of OST on TGF-β1-induced EMT in A549 cells. Cells were treated with TGF-β1 in the absence and presence of OST...
February 1, 2017: Cell Adhesion & Migration
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