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Integrin linked kinase

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https://www.readbyqxmd.com/read/28421082/insights-into-the-structure-function-and-ion-mediated-signaling-pathways-transduced-by-plant-integrin-linked-kinases
#1
Sorina C Popescu, Elizabeth K Brauer, Gizem Dimlioglu, George V Popescu
Kinases facilitate detection of extracellular signals and set in motion cellular responses for plant adaptation and survival. Some of the energy utilized for kinase signal processing is produced through the activity of ion transporters. Additionally, the synergy between cellular ions and signal transduction influences plant response to pathogens, and their growth and development. In plants, the signaling elements that connect cell wall and membrane sensors with ion homeostasis and transport-mediated processes are largely unknown...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28413908/molecular-mechanisms-involved-in-podocyte-emt-and-concomitant-diabetic-kidney-diseases-an-update
#2
Qidi Ying, Guanzhong Wu
Epithelial-mesenchymal transition (EMT) is a tightly regulated process by which epithelial cells lose their hallmark epithelial characteristics and gain the features of mesenchymal cells. For podocytes, expression of nephrin, podocin, P-cadherin, and ZO-1 is downregulated, the slit diaphragm (SD) will be altered, and the actin cytoskeleton will be rearranged. Diabetes, especially hyperglycemia, has been demonstrated to incite podocyte EMT through several molecular mechanisms such as TGF-β/Smad classic pathway, Wnt/β-catenin signaling pathway, Integrins/integrin-linked kinase (ILK) signaling pathway, MAPKs signaling pathway, Jagged/Notch signaling pathway, and NF-κB signaling pathway...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28404615/myeloperoxidase-mediates-postischemic-arrhythmogenic-ventricular-remodeling
#3
Martin Mollenhauer, Kai Friedrichs, Max Lange, Jan Gesenberg, Lisa Remane, Christina Kerkenpaß, Jenny Krause, Johanna Schneider, Thorben Ravekes, Martina Maass, Marcel Halbach, Gabriel Peinkofer, Tomo Saric, Dennis Mehrkens, Matti Adam, Florian G Deuschl, Denise Lau, Birgit Geertz, Kashish Manchanda, Thomas Eschenhagen, Lukas Kubala, Tanja K Rudolph, Yuping Wu, Wh W Tang, Stanley L Hazen, Stephan Baldus, Anna Klinke, Volker Rudolph
Rationale: Ventricular arrhythmias remain the leading cause of death in patients suffering myocardial ischemia. Myeloperoxidase (MPO), a heme-enzyme released by polymorphonuclear neutrophils, accumulates within ischemic myocardium and has been linked to adverse left ventricular remodeling. Objective: To reveal the role of MPO for the development of ventricular arrhythmias. Methods and Results: In different murine models of myocardial ischemia MPO deficiency profoundly decreased vulnerability for ventricular tachycardia (VT) upon programmed right ventricular and burst stimulation and spontaneously as assessed by ECG telemetry following isoproterenol injection...
April 12, 2017: Circulation Research
https://www.readbyqxmd.com/read/28391962/su9516-increases-%C3%AE-7%C3%AE-1-integrin-and-ameliorates-disease-progression-in-the-mdx-mouse-model-of-duchenne-muscular-dystrophy
#4
Apurva Sarathy, Ryan D Wuebbles, Tatiana M Fontelonga, Ashley R Tarchione, Lesley A Mathews Griner, Dante J Heredia, Andreia M Nunes, Suzann Duan, Paul D Brewer, Tyler Van Ry, Grant W Hennig, Thomas W Gould, Andrés E Dulcey, Amy Wang, Xin Xu, Catherine Z Chen, Xin Hu, Wei Zheng, Noel Southall, Marc Ferrer, Juan Marugan, Dean J Burkin
Duchenne muscular dystrophy (DMD) is a fatal muscle disease caused by mutations in the dystrophin gene, resulting in a complete loss of the dystrophin protein. Dystrophin is a critical component of the dystrophin glycoprotein complex (DGC), which links laminin in the extracellular matrix to the actin cytoskeleton within myofibers and provides resistance to shear stresses during muscle activity. Loss of dystrophin in DMD patients results in a fragile sarcolemma prone to contraction-induced muscle damage. The α7β1 integrin is a laminin receptor protein complex in skeletal and cardiac muscle and a major modifier of disease progression in DMD...
April 5, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28339614/integrin-linked-kinase-regulates-syncytialization-of-bewo-trophoblast-cells%C3%A2
#5
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...
March 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28325807/tensin-links-energy-metabolism-to-extracellular-matrix-assembly
#6
Emmanuel Dornier, Jim C Norman
The regulation of integrin function is key to fundamental cellular processes, including cell migration and extracellular matrix (ECM) assembly. In this issue, Georgiadou et al. (2017. J. Cell Biol. https://doi.org/10.1083/jcb.201609066) report that the metabolic sensor adenosine monophosphate-activated protein kinase influences tensin production to regulate α5β1-integrin and fibrillar adhesion assembly and thus reveal an important connection between energy metabolism and ECM assembly.
April 3, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28325301/increased-expression-of-laminin-subunit-alpha-1-chain-by-dcas9-vp160
#7
Arnaud Perrin, Joël Rousseau, Jacques P Tremblay
Laminin-111 protein complex links the extracellular matrix to integrin α7β1 in sarcolemma, thus replacing in dystrophic muscles links normally insured by the dystrophin complex. Laminin-111 injection in mdx mouse stabilized sarcolemma, restored serum creatine kinase to wild-type levels, and protected muscles from exercised-induced damages. These results suggested that increased laminin-111 is a potential therapy for DMD. Laminin subunit beta 1 and laminin subunit gamma 1 are expressed in adult human muscle, but laminin subunit alpha 1 (LAMA1) gene is expressed only during embryogenesis...
March 17, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28316170/-advances-in-effects-of-integrin-linked-kinase-on-cutaneous-wound-healing-and-the-relative-mechanism
#8
R X Zhou, Y Y Li, W H Lin, G Li, J E Sun, W B Zhou
Previous studies have demonstrated that integrin-linked kinases (ILKs) are abundantly expressed in extracellular matrix (ECM) riche dermis, hair follicles, and basal cells of epidermis. ILKs are not only essential for the maintenance of skin structure, but also play important roles in wound healing. ILKs can promote the formation of granulation tissue by stimulating the proliferation of fibroblasts and secretion of ECM, accelerate wound contraction by inducing the differentiation of fibroblasts to myofibroblasts, and boost reepithelization by promoting proliferation, migration, and differentiation of keratinocytes and follicle epidermal stem cells...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28293193/isobaric-tags-for-relative-and-absolute-quantitation-itraq-based-proteomic-analysis-of-hugan-qingzhi-and-its-protective-properties-against-free-fatty-acid-induced-l02-hepatocyte-injury
#9
Fan Xia, Xiaorui Yao, Waijiao Tang, Chunxin Xiao, Miaoting Yang, Benjie Zhou
In previous research, Hugan Qingzhi, a traditional Chinese medicine, was shown to have protective effects against hepatic steatosis. However, its activity against non-alcoholic fatty liver disease (NAFLD) and the mechanisms by which it exerts its effects remain unknown. In the present study, the effects of Hugan Qingzhi on free fatty acid (FFA)-induced L02 cells were examined. The techniques of iTRAQ labeling, together with strong cation exchange-non-liquid chromatography-tandem mass spectrometry (SCX-non-LC-MS/MS) analysis and serum pharmacology, were used to evaluate the effects of Hugan Qingzhi-medicated serum on FFA-induced L02 hepatocyte injury...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28286248/cell-migration-in-schizophrenia-patient-derived-cells-do-not-regulate-motility-in-response-to-extracellular-matrix
#10
Jing Yang Tee, Ratneswary Sutharsan, Yongjun Fan, Alan Mackay-Sim
Schizophrenia is a highly heritable psychiatric disorder linked to a large number of risk genes. The function of these genes in disease etiology is not fully understood but pathway analyses of genomic data suggest developmental dysregulation of cellular processes such as neuronal migration and axon guidance. Previous studies of patient-derived olfactory cells show them to be more motile than control-derived cells when grown on a fibronectin substrate, motility that is dependent on focal adhesion kinase signaling...
March 9, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28237777/integrin-linked-kinase-improves-functional-recovery-of-diabetic-cystopathy-and-mesenchymal-stem-cell-survival-and-engraftment-in-rats
#11
Yi Huang, Liucheng Ding, Yunpeng Shao, Zhengsen Chen, Baixin Shen, Yinchao Ma, Lijie Zhu, Zhongqing Wei
OBJECTIVES: Diabetic cystopathy (DCP), characterized by peripheral neuropathy-associated bladder dysfunction, is a common urinary complication in patients with diabetes (~80%). Bone marrow mesenchymal stem cell (BMMSC) transplantation, a new and emerging regenerative therapy, provides a curative option for DCP. However, the application of this therapy is limited by the low survival rate and engraftment of transplanted stem cells. This study was undertaken to determine whether integrin-linked kinase (ILK) overexpression would improve stem cell survival and engraftment after BMMSC transplantation...
February 22, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28188308/tetraspanin-8-is-a-novel-regulator-of-ilk-driven-%C3%AE-1-integrin-adhesion-and-signaling-in-invasive-melanoma-cells
#12
Manale El Kharbili, Clément Robert, Tiffany Witkowski, Emmanuelle Danty-Berger, Laetitia Barbollat-Boutrand, Ingrid Masse, Nicolas Gadot, Arnaud de la Fouchardière, Paul C McDonald, Shoukat Dedhar, François Le Naour, Françoise Degoul, Odile Berthier-Vergnes
Melanoma is well known for its propensity for lethal metastasis and resistance to most current therapies. Tumor progression and drug resistance depend to a large extent on the interplay between tumor cells and the surrounding matrix. We previously identified Tetraspanin 8 (Tspan8) as a critical mediator of melanoma invasion, whose expression is absent in healthy skin. The present study investigated whether Tspan8 may influence cell-matrix anchorage and regulate downstream molecular pathways leading to an aggressive behavior...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28188026/clinical-significance-of-integrin-linked-kinase-in-laryngeal-squamous-cell-carcinoma
#13
Ping-An Wu, Shi-Sheng Li, Qing-Lai Tang, Bing-Bing Liu, Xin-Ming Yang
OBJECTIVE: To investigate the expression of integrin-linked kinase (ILK) and its relationship with clinicopathological parameters in laryngeal squamous cell carcinoma (LSCC). METHODS: 116 patients who had previously undergone complete resection of tumor for LSCC were studied retrospectively. The level of ILK expression in tumor tissues and adjacent nontumor tissues were determined by immunohistochemistry. RESULTS: Increased expression of ILK was found in 65...
February 7, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28167044/hypoxia-directs-human-extravillous-trophoblast-differentiation-in-a-hypoxia-inducible-factor-dependent-manner
#14
Anna K Wakeland, Francesca Soncin, Matteo Moretto-Zita, Ching-Wen Chang, Mariko Horii, Don Pizzo, Katharine K Nelson, Louise C Laurent, Mana M Parast
Villous cytotrophoblasts are epithelial stem cells of the early human placenta, able to differentiate either into syncytiotrophoblasts in floating chorionic villi or extravillous trophoblasts (EVTs) at the anchoring villi. The signaling pathways regulating differentiation into these two lineages are incompletely understood. The bulk of placental growth and development in the first trimester occurs under low oxygen tension. One major mechanism by which oxygen regulates cellular function is through the hypoxia-inducible factor (HIF), a transcription factor complex stabilized under low oxygen tension to mediate cellular responses, including cell fate decisions...
April 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28159878/laminins-in-epithelial-cell-polarization-old-questions-in-search-of-new-answers
#15
Karl S Matlin, Satu-Marja Myllymäki, Aki Manninen
Laminin, a basement membrane protein discovered in 1979, was shortly thereafter implicated in the polarization of epithelial cells in both mammals and a variety of lower organisms. To transduce a spatial cue to the intrinsic polarization machinery, laminin must polymerize into a dense network that forms the foundation of the basement membrane. Evidence suggests that activation of the small GTPase Rac1 by β1-integrins mobilizes laminin-binding integrins and dystroglycan to consolidate formation of the laminin network and initiate rearrangements of both the actin and microtubule cytoskeleton to help establish the apicobasal axis...
February 3, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28138714/overexpression-of-ilk-promotes-temozolomide-resistance-in-glioma-cells
#16
Feng Liang, Bing Wang, Long Bao, Yin-Sheng Zhao, Shi-Min Zhang, Shu-Qin Zhang
The present study aimed to investigate whether overexpression of integrin-linked kinase (ILK) affects drug resistance to temozolomide (TMZ) in glioma cells. To do this, a plasmid containing the ILK gene was transfected into the SHG‑44 human glioma cell line, and cells were subsequently cultured in the absence or presence of TMZ. The expression levels of ILK, multidrug resistance‑associated protein (MRP) and multi‑drug resistance protein (MDR) were assessed in these cells. Cell growth and apoptosis were measured by MTT and Hoechst staining, and flow cytometry, respectively...
March 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28134933/inhibition-of-the-integrin-fak-signaling-axis-and-c-myc-synergistically-disrupts-ovarian-cancer-malignancy
#17
B Xu, J Lefringhouse, Z Liu, D West, L A Baldwin, C Ou, L Chen, D Napier, L Chaiswing, L D Brewer, D St Clair, O Thibault, J R van Nagell, B P Zhou, R Drapkin, J-A Huang, M L Lu, F R Ueland, X H Yang
Integrins, a family of heterodimeric receptors for extracellular matrix, are promising therapeutic targets for ovarian cancer, particularly high-grade serous-type (HGSOC), as they drive tumor cell attachment, migration, proliferation and survival by activating focal adhesion kinase (FAK)-dependent signaling. Owing to the potential off-target effects of FAK inhibitors, disruption of the integrin signaling axis remains to be a challenge. Here, we tackled this barrier by screening for inhibitors being functionally cooperative with small-molecule VS-6063, a phase II FAK inhibitor...
January 30, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28109308/semaphorin-7a-as-a-potential-immune-regulator-and-promising-therapeutic-target-in-rheumatoid-arthritis
#18
Jianmin Xie, Hao Wang
BACKGROUND: Semaphorin 7A (Sema7A) is expressed by several different classes of lymphoid and myeloid cells and is a potent immunomodulator. We examined the role of Sema7A in modulating cellular immune responses and to provide experimental data validating the therapeutic potential of Sema7A in rheumatoid arthritis (RA). METHODS: Soluble Sema7A (sSema7A) levels in the serum and synovial fluid from patients with RA or osteoarthritis, as well as cytokine secretions, were analyzed with an enzyme-linked immunosorbent assay...
January 21, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28108607/insulin-like-growth-factor-binding-protein-1-could-improve-glucose-regulation-and-insulin-sensitivity-through-its-rgd-domain
#19
Natalie J Haywood, Paul A Cordell, Kar Yeun Tang, Natallia Makova, Nadira Y Yuldasheva, Helen Imrie, Hema Viswambharan, Alexander F Bruns, Richard M Cubbon, Mark T Kearney, Stephen B Wheatcroft
Low circulating levels of insulin-like growth factor binding protein 1 (IGFBP-1) are associated with insulin resistance and predict the development of type 2 diabetes. IGFBP-1 can affect cellular functions independently of IGF binding through an Arg-Gly-Asp (RGD) integrin-binding motif. Whether causal mechanisms underlie the favorable association of high IGFBP-1 levels with insulin sensitivity and whether these could be exploited therapeutically remain unexplored. We used recombinant IGFBP-1 and a synthetic RGD-containing hexapeptide in complementary in vitro signaling assays and in vivo metabolic profiling in obese mice to investigate the effects of IGFBP-1 and its RGD domain on insulin sensitivity, insulin secretion, and whole-body glucose regulation...
February 2017: Diabetes
https://www.readbyqxmd.com/read/28106780/integrins-and-cell-metabolism-an-intimate-relationship-impacting-cancer
#20
REVIEW
Rehman Ata, Costin N Antonescu
Integrins are important regulators of cell survival, proliferation, adhesion and migration. Once activated, integrins establish a regulated link between the extracellular matrix and the cytoskeleton. Integrins have well-established functions in cancer, such as in controlling cell survival by engagement of many specific intracellular signaling pathways and in facilitating metastasis. Integrins and associated proteins are regulated by control of transcription, membrane traffic, and degradation, as well as by a number of post-translational modifications including glycosylation, allowing integrin function to be modulated to conform to various cellular needs and environmental conditions...
January 18, 2017: International Journal of Molecular Sciences
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