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Integrin linked kinase

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https://www.readbyqxmd.com/read/28077718/integrin-linked-kinase-ilk-deletion-disrupts-oligodendrocyte-development-by-altering-cell-cycle
#1
Rashad Hussain, Wendy B Macklin
: During development, oligodendrocytes are initially specified, after which oligodendrocyte precursor cells (OPCs) migrate and proliferate before differentiating into myelinating cells. Lineage-specific programming of oligodendrocytes results from sensing environmental cues through membrane-bound receptors and related intracellular signaling molecules. Integrin-linked kinase (ILK) is an important protein that is expressed at the inner margins of the plasma membrane and can mediate some of these signals...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28069177/increased-expression-of-integrin-linked-kinase-during-decidualization-regulates-the-morphological-transformation-of-endometrial-stromal-cells
#2
Chih-Feng Yen, Sung Hoon Kim, Shuen-Kuei Liao, Cem Atabekoglu, Serpil Uckac, Aydin Arici, Sefa Arlier, Chyi-Long Lee, Hsin-Shih Wang, Umit A Kayisli
OBJECTIVE: To study the impact of integrin-linked kinase (ILK) in endometrial stromal cells (ESCs) during decidualization. DESIGN: Laboratory study with the use of human endometrium. SETTING: University hospital. PATIENT(S): Fertile reproductive-age women who had not received hormonal treatment for 3 months before tissue collection. INTERVENTION(S): Endometrium tissue collection, in vitro decidualization of isolated ESCs, and small interfering (si) RNA transfection...
January 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28061467/cytological-study-on-the-regulation-of-lymphocyte-homing-in-the-chicken-spleen-during-lps-stimulation
#3
Qian Zhang, Yasir Waqas, Ping Yang, Xuejing Sun, Yi Liu, Nisar Ahmed, Bing Chen, Quanfu Li, Lisi Hu, Yufei Huang, Hong Chen, Bing Hu, Qiusheng Chen
The immune function of the chicken spleen depends on its different compartments of red and white pulps, but little is known about the mechanism underlying lymphocyte homing towards the different compartments. In the present study, the role of lymphocyte homing in the chicken spleen was investigated during lipopolysaccharide (LPS) stimulation. Morphological analysis demonstrated the cuboidal endothelial cells of the splenic sheathed capillary facilitated the passage of lymphocyte homing to the chicken spleen...
January 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28050799/thyroid-hormone-controls-breast-cancer-cell-movement-via-integrin-%C3%AE-v-%C3%AE-3-src-fak-pi3-kinases
#4
Marina Inés Flamini, Ivonne Denise Uzair, Gisela Erika Pennacchio, Flavia Judith Neira, Joselina Magali Mondaca, Fernando Dario Cuello-Carrión, Graciela Alma Jahn, Tommaso Simoncini, Angel Matías Sanchez
Thyroid hormones (TH) play a fundamental role in diverse processes, including cellular movement. Cell migration requires the integration of events that induce changes in cell structure towards the direction of migration. These actions are driven by actin remodeling and stabilized by the development of adhesion sites to extracellular matrix via transmembrane receptors linked to the actin cytoskeleton. Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that promotes cell migration and invasion through the control of focal adhesion turnover...
January 3, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28045035/pdlim5-links-kidney-anion-exchanger-1-kae1-to-ilk-and-is-required-for-membrane-targeting-of-kae1
#5
Ya Su, Thomas F Hiemstra, Yahui Yan, Juan Li, Hannah I Karet, Lawrence Rosen, Pablo Moreno, Fiona E Karet Frankl
Anion exchanger 1 (AE1) mediates Cl(-)/HCO3(-) exchange in erythrocytes and kidney intercalated cells where it functions to maintain normal bodily acid-base homeostasis. AE1's C-terminal tail (AE1C) contains multiple potential membrane targeting/retention determinants, including a predicted PDZ binding motif, which are critical for its normal membrane residency. Here we identify PDLIM5 as a direct binding partner for AE1 in human kidney, via PDLIM5's PDZ domain and the PDZ binding motif in AE1C. Kidney AE1 (kAE1), PDLIM5 and integrin-linked kinase (ILK) form a multiprotein complex in which PDLIM5 provides a bridge between ILK and AE1C...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28031460/inhibitory-role-of-%C3%AE-2-6-sialylation-in-adipogenesis
#6
Tomoko Kaburagi, Yasuhiko Kizuka, Shinobu Kitazume, Naoyuki Taniguchi
Adipose tissue plays critical roles in obesity and related diseases such as diabetes and cardiovascular diseases. Previous reports suggest that glycans, the most common post-translational modifications, are involved in obesity-related diseases, but what type of glycan regulates adipogenesis during obesity remains unclear. In this study, we first quantified the mRNA levels of 167 genes (encoding 144 glycosyltransferases and 23 related enzymes) in visceral adipose tissues (VATs) from control mice and high fat diet (HFD)-induced obese mice...
December 28, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28011283/integrin-linked-kinase-regulates-cellular-mechanics-facilitating-the-motility-in-3d-extracellular-matrices
#7
Tom Kunschmann, Stefanie Puder, Tony Fischer, Jeremy Perez, Nils Wilharm, Claudia Tanja Mierke
The motility of cells plays an important role for many processes such as wound healing and malignant progression of cancer. The efficiency of cell motility is affected by the microenvironment. The connection between the cell and its microenvironment is facilitated by cell-matrix adhesion receptors and upon their activation focal adhesion proteins such as integrin-linked kinase (ILK) are recruited to sites of focal adhesion formation. In particular, ILK connects cell-matrix receptors to the actomyosin cytoskeleton...
December 21, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27995929/the-biomechanical-properties-of-an-epithelial-tissue-determine-the-location-of-its-vasculature
#8
Martin Kragl, Rajib Schubert, Haiko Karsjens, Silke Otter, Barbara Bartosinska, Kay Jeruschke, Jürgen Weiss, Chunguang Chen, David Alsteens, Oliver Kuss, Stephan Speier, Daniel Eberhard, Daniel J Müller, Eckhard Lammert
An important question is how growing tissues establish a blood vessel network. Here we study vascular network formation in pancreatic islets, endocrine tissues derived from pancreatic epithelium. We find that depletion of integrin-linked kinase (ILK) in the pancreatic epithelial cells of mice results in glucose intolerance due to a loss of the intra-islet vasculature. In turn, blood vessels accumulate at the islet periphery. Neither alterations in endothelial cell proliferation, apoptosis, morphology, Vegfa expression and VEGF-A secretion nor 'empty sleeves' of vascular basement membrane are found...
December 20, 2016: Nature Communications
https://www.readbyqxmd.com/read/27986909/sos1-arhgef1-and-dock2-rho-gefs-mediate-jak-dependent-lfa-1-activation-by-chemokines
#9
Lara Toffali, Alessio Montresor, Michela Mirenda, Giorgio Scita, Carlo Laudanna
JAK-dependent activation of the rho module of integrin affinity triggering mediates chemokine-induced leukocyte adhesion. However, the signaling events linking JAKs to rho small GTPase activation by chemokines is still incompletely described. In this study, we show that son of sevenless 1 (SOS1), rho guanine nucleotide exchange factor (GEF)1 (ARHGEF1), and dedicator of cytokinesis (DOCK)2 GEFs mediate CXCL12-induced LFA-1 activation in human primary T lymphocytes. Downregulated expression of SOS1, ARHGEF1, and DOCK2 impairs LFA-1-mediated rapid T lymphocyte adhesion as well as underflow arrest on ICAM-1 induced by CXCL12...
December 16, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27982018/sio2-antisense-molecules-covered-by-nepetalactone-extracted-from-nepeta-gloeocephala-inhibits-ilk-phosphorylation-and-downstream-pkb-akt-signaling-in-hela-cells
#10
M Dehghany Ashkezary, F Aboee-Mehrizi, P Moradi
In this study, the anticancer property of SiO2@antisense molecules (SiO2@AMs) and SiO2@AM covered by nepetalactone (SiO2@AM/CN), extracted from Nepeta gloeocephala, was investigated. Here integrin-linked kinase (ILK) phosphorylation and protein kinase B/AKT (PKB/AKT) signaling was studied when HeLa cells were exposed to SiO2@AM and SiO2@AM/CN. First, N. gloeocephala was identified at the Iranian National Herbarium. Then, its essential oil (EO) was obtained by the hydrodistillation method. In the next step, 4aα,7α,7aα-nepetalactone was extracted from the EO, based on the spectroscopic data...
December 16, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27936345/targeting-integrin-linked-kinase-to-suppress-oncogenic-kras-signaling-in-pancreatic-cancer
#11
Po-Chen Chu, Samuel K Kulp, Tanios Bekaii-Saab, Ching-Shih Chen
Although oncogenic KRAS represents a therapeutically relevant target in pancreatic cancer, it is deemed "non-druggable" because of the intrinsic difficulty in designing direct inhibitors of KRAS. Our recent work demonstrated a KRAS-integrin-linked kinase (ILK) regulatory feedback loop that allows pancreatic cancer cells to regulate KRAS expression and to interact with the tumor microenvironment to promote aggressive phenotype. KRAS induces E2F1-mediated transcriptional activation of ILK expression, and ILK, in turn, controls KRAS expression via hnRNPA1, which binds and destabilizes the G-quadruplex in the KRAS promoter...
December 9, 2016: Small GTPases
https://www.readbyqxmd.com/read/27913589/integrin-linked-kinase-ilk-deletion-disrupts-oligodendrocyte-development-by-altering-cell-cycle
#12
Rashad Hussain, Wendy B Macklin
: During development, oligodendrocytes are initially specified, after which oligodendrocyte precursor cells (OPCs) migrate and proliferate before differentiating into myelinating cells. Lineage specific programming of oligodendrocytes results from sensing environmental cues through membrane-bound receptors and related intracellular signaling molecules. Integrin linked kinase (ILK) is an important protein expressed at the inner margins of the plasma membrane, which can mediate some of these signals...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27899483/integrin-linked-kinase-is-necessary-for-the-development-of-diet-induced-hepatic-insulin-resistance
#13
Ashley S Williams, Elijah Trefts, Louise Lantier, Carrie Grueter, Deanna P Bracy, Freyja D James, Ambra Pozzi, Roy Zent, David H Wasserman
The liver extracellular matrix (ECM) expands with high fat (HF) feeding. This finding led us to address whether receptors for the ECM, integrins, are key to the development of diet-induced hepatic insulin resistance. Integrin-linked kinase (ILK) is a downstream integrin signaling molecule involved in multiple hepatic processes including those related to differentiation, wound healing and metabolism. We tested the hypothesis that deletion of ILK in mice on a HF diet would disrupt the ECM-Integrin signaling axis thereby preventing the transformation into the insulin resistant liver...
November 29, 2016: Diabetes
https://www.readbyqxmd.com/read/27896223/urokinase-type-plasminogen-activator-receptor-upar-as-a-new-therapeutic-target-in-cancer
#14
Nunzia Montuori, Ada Pesapane, Francesca W Rossi, Valentina Giudice, Amato De Paulis, Carmine Selleri, Pia Ragno
The urokinase (uPA)-type plasminogen activator receptor (uPAR) is a GPI-anchored receptor that focuses urokinase (uPA) proteolytic activity on the cell surface. uPAR also regulates cell adhesion, migration and proliferation, protects from apoptosis and contributes to epithelial mesenchymal transition (EMT), independently of uPA enzymatic activity. Indeed, uPAR interacts with beta1, beta2 and beta3 integrins, thus regulating their activities. uPAR cross-talks with receptor tyrosine kinases through integrins and regulates cancer cell dormancy, proliferation and angiogenesis...
November 2016: Translational Medicine @ UniSa
https://www.readbyqxmd.com/read/27878269/marmesin-mediated-suppression-of-vegf-vegfr-and-integrin%C3%A2-%C3%AE-1-expression-its-implication-in-non-small-cell-lung-cancer-cell-responses-and-tumor-angiogenesis
#15
Jae Hyeon Kim, Min Su Kim, Bo Hee Lee, Jin-Kyu Kim, Eun-Kyung Ahn, Hye-Jin Ko, Young-Rak Cho, Sang-Jin Lee, Gyu-Un Bae, Yong Kee Kim, Joa Sub Oh, Dong-Wan Seo
In the present study, we investigated the effects and molecular mechanism of marmesin, a natural coumarin compound isolated from Broussonetia kazinoki, on non-small cell lung cancer (NSCLC) cell responses and tumor angiogenesis. Marmesin abrogated mitogen-stimulated proliferation and invasion in both p53 wild-type A549 and p53-deficient H1299 NSCLC cells. These antitumor activities of marmesin were mediated by the inactivation of mitogenic signaling pathways and downregulation of cell signaling-related proteins including vascular endothelial growth factor receptor-2 (VEGFR-2), integrin β1, integrin-linked kinase and matrix metalloproteinases-2...
January 2017: Oncology Reports
https://www.readbyqxmd.com/read/27824126/preservation-of-epithelial-progenitor-cells-from-collagenase-digested-oral-mucosa-during-ex-vivo-cultivation
#16
Yi-Jen Hsueh, Shiang-Fu Huang, Jui-Yang Lai, Shih-Chieh Ma, Hung-Chi Chen, Sung-En Wu, Tze-Kai Wang, Chi-Chin Sun, Kevin Sheng-Kai Ma, Jan-Kan Chen, Chyong-Huey Lai, David Hui-Kang Ma
To avoid xenogeneic infection, we report a novel protocol for producing animal-derived component-free oral mucosal epithelial cells (OMECs) sheet for transplantation, in which collagenase was used to replace dispase II/trypsin-EDTA for digesting oral mucosal tissue, and human platelet-derived PLTMax to replace fetal bovine serum. The resulting epithelial aggregates were expanded on de-epithelialized amniotic membranes without 3T3 feeder cells, and serum-free EpiLife was used to reduce contamination by submucosal mesenchymal cells...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27805945/mesenchymal-stem-cells-to-promote-islet-transplant-survival
#17
Karen English
PURPOSE OF REVIEW: Mesenchymal stromal cells (MSCs) are adult stromal cells with therapeutic potential in allogeneic islet transplantation for type 1 diabetes patients. The process of islet isolation alone has been shown to negatively impact islet survival and function in vivo. In addition, insults mediated by the instant blood-mediated inflammatory reaction, hypoxia, ischemia and immune response significantly impact the islet allograft post transplantation. MSCs are known to exert cytoprotective and immune modulatory properties and thus are an attractive therapeutic in this context...
December 2016: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/27771700/early-activation-of-pinch-glycogen-synthase-kinase-3%C3%AE-erk-pathway-in-obstructive-nephropathy-rat-model
#18
Lishan Jia, Xiaozhong Li, Yueqin Gu, Weifeng Cui
BACKGROUND: Despite a previous study showing that PINCH-1 exerts an important role in regulating TGF-β1-mediated mesenchymal transition through its interaction with integrin-linked kinase, relatively little is known about the role of PINCH in the obstructive nephropathy. METHODS: To construct a rat model of renal interstitial fibrosis and obstructive nephropathy, unilateral ureteral obstruction (UUO) was used. Hematoxylin and eosin and Masson staining were used in histologic examinations...
October 22, 2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27765766/tula-2-t-cell-ubiquitin-ligand-2-inhibits-the-platelet-fc-receptor-for-igg-iia-fc%C3%AE-riia-signaling-pathway-and-heparin-induced-thrombocytopenia-in-mice
#19
Yuhang Zhou, Shaji Abraham, Stephanie Renna, Leonard C Edelstein, Carol A Dangelmaier, Alexander Y Tsygankov, Satya P Kunapuli, Paul F Bray, Steven E McKenzie
OBJECTIVE: The objective of this study is to investigate the role of T-cell ubiquitin ligand-2 (TULA-2) in the platelet Fc receptor for IgG IIA (FcγRIIA) pathway and in the pathogenesis of heparin-induced thrombocytopenia (HIT). APPROACH AND RESULTS: HIT is a life-threatening thrombotic disease in which IgG antibodies against the heparin-platelet factor 4 complex activate platelets via FcγRIIA. We reported previously differential expression of TULA-2 in human population was linked to FcγRIIA responsiveness...
October 20, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27760768/ilk-and-cytoskeletal-architecture-an-important-determinant-of-aqp2-recycling-and-subsequent-entry-into-the-exocytotic-pathway
#20
Fahmy A Mamuya, Jose Luis Cano-Peñalver, Wei Li, Diego Rodriguez Puyol, Manuel Rodriguez Puyol, Dennis Brown, Sergio de Frutos, Hua Ann Jenny Lu
Within the past decade tremendous efforts have been made to understand the mechanism behind aquaporin-2 (AQP2) water channel trafficking and recycling, to open a path toward effective diabetes insipidus therapeutics. A recent study has shown that integrin-linked kinase (ILK) conditional-knockdown mice developed polyuria along with decreased AQP2 expression. To understand whether ILK also regulates AQP2 trafficking in kidney tubular cells, we performed in vitro analysis using LLCPK1 cells stably expressing rat AQP2 (LLC-AQP2 cells)...
December 1, 2016: American Journal of Physiology. Renal Physiology
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