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https://www.readbyqxmd.com/read/28630423/thymosin-beta-4-regulates-activation-of-hepatic-stellate-cells-via-hedgehog-signaling
#1
Jieun Kim, Jeongeun Hyun, Sihyung Wang, Chanbin Lee, Jae-Wook Lee, Eun-Yi Moon, Heejae Cha, Anna Mae Diehl, Youngmi Jung
The molecular mechanisms of thymosin beta-4 (TB4) involved in regulating hepatic stellate cell (HSC) functions remain unclear. Therefore, we hypothesize that TB4 influences HSC activation through hedgehog (Hh) pathway. HSC functions declined in a TB4 siRNA-treated LX-2. TB4 suppression down-regulated both integrin linked kinase (ILK), an activator of smoothened, and phosphorylated glycogen synthase kinase 3 beta (pGSK-3B), an inactive form of GSK-3B degrading glioblastoma 2 (GLI2), followed by the decreased expression of both smoothened and GLI2...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28624995/how-does-it-feel-to-be-a-pathology-resident-results-of-a-survey-on-experiences-and-job-satisfaction-during-pathology-residency
#2
Burcin Pehlivanoglu, Hur Hassoy, Catarina Calle, Amelie Dendooven, ILKe Nalbantoglu, Lidiya Reshchikova, Gulen Gul, Basak Doganavsargil
Residents' career choices and professional motivation can be affected from perception of their role and recognition within a medical team as well as their educational and workplace experiences. To evaluate pathology trainees' perceptions of their pathology residency, we conducted a 42-item survey via a web-based link questioning respondents' personal and institutional background, workplace, training conditions, and job satisfaction level. For the 208 residents from different European countries who responded, personal expectations in terms of quality of life (53%) and scientific excitement (52%) were the most common reasons why they chose and enjoy pathology...
June 17, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28594262/an-analysis-of-gene-expression-data-involving-examination-of-signaling-pathways-activation-reveals-new-insights-into-the-mechanism-of-action-of-minoxidil-topical-foam-in-men-with-androgenetic-alopecia
#3
Georgios N Stamatas, Jeff Wu, Apostolos Pappas, Paradi Mirmirani, Thomas S McCormick, Kevin D Cooper, Mary Consolo, Jane Schastnaya, Ivan Ozerov, Alexander Aliper, Alex Zhavoronkov
Androgenetic alopecia is the most common form of hair loss. Minoxidil has been approved for the treatment of hair loss, however its mechanism of action is still not fully clarified. In this study, we aimed to elucidate the effects of 5% minoxidil topical foam on gene expression and activation of signaling pathways in vertex and frontal scalp of men with androgenetic alopecia. We identified regional variations in gene expression and perturbed signaling pathways using in silico Pathway Activation Network Decomposition Analysis (iPANDA) before and after treatment with minoxidil...
June 8, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28574598/integrin-linked-kinase-regulates-bone-formation-by-controlling-cytoskeletal-organization-and-modulating-bmp-and-wnt-signaling-in-osteoprogenitors
#4
Marian Dejaeger, Anna-Marei Böhm, Naomi Dirckx, Joke Devriese, Elena Nefyodova, Ruben Cardoen, René St-Arnaud, Jos Tournoy, Frank P Luyten, Christa Maes
Cell-matrix interactions constitute a fundamental aspect of skeletal cell biology and play essential roles in bone homeostasis. These interactions are primarily mediated by transmembrane integrin receptors, which mediate cell adhesion and transduce signals from the extracellular matrix to intracellular responses via various downstream effectors, including integrin-linked kinase (ILK). ILK functions as adaptor protein at focal adhesion sites, linking integrins to the actin cytoskeleton, and has been reported to act as a kinase phosphorylating signaling molecules such as GSK-3β and Akt...
June 2, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28565830/correlation-between-pkb-akt-gsk-3%C3%AE-expression-and-tubular-epithelial-mesenchymal-transition-in-renal-allografts-with-chronic-active-antibody-mediated-rejection
#5
Qiang Yan, Hao Luo, Baoyao Wang, Weiguo Sui, Guimian Zou, Huaizhou Chen, Hequn Zou
Chronic antibody-mediated rejection (ABMR) is a major cause of the transplant renal interstitial fibrosis and transplanted kidney epithelial cell transdifferentiation is one of the main mechanisms. The transforming growth factor (TGF)-β1/integrin-linked kinase (ILK) signaling pathway has a significant role in the epithelial-mesenchymal transition (EMT) of renal tubular epithelial cells; however, the molecular mechanisms of this process have remained elusive. The present study confirmed that Akt and glycogen synthase kinase (GSK)-3β, as TGF-β1 downstream signaling factors, are involved in fibrotic processes caused by kidney disease, which, however, has been rarely reported in the kidney transplant field...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28565779/expression-of-integrin-linked-kinase-improves-cardiac-function-in-a-swine-model-of-myocardial-infarction
#6
Wen Lu, Jun Xie, Rong Gu, Biao Xu
Previous studies have described the beneficial effects of overexpressing integrin-linked kinase (ILK) after myocardial infarction (MI) in small animal models. However, the effects of ILK in pre-clinical large animals are not known. To move closer to clinical translation, we examined the effects of ILK gene transfer in a swine model of ischemic heart disease. Swine received percutaneous intracoronary injections of adenoviral vector expressing ILK (n=10) or empty ad-null (n=10) in the left anterior descending coronary artery (LAD) following LAD occlusion...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28546219/inos-derived-nitric-oxide-induces-integrin-linked-kinase-endocytic-lysosome-mediated-degradation-in-the-vascular-endothelium
#7
Paula Reventun, Matilde Alique, Irene Cuadrado, Susana Marquez, Rocio Toro, Carlos Zaragoza, Marta Saura
OBJECTIVE: ILK (integrin-linked kinase) plays a key role in controlling vasomotor tone and is decreased in atherosclerosis. The objective of this study is to test whether nitric oxide (NO) regulates ILK in vascular remodeling. APPROACH AND RESULTS: We found a striking correlation between increased levels of inducible nitric oxide and decreased ILK levels in human atherosclerosis and in a mouse model of vascular remodeling (carotid artery ligation) comparing with inducible NO synthase knockout mice...
May 25, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28534712/benefit-of-adjunct-universal-rectal-screening-for-chlamydia-genital-infections-in-women-attending-canadian-sexually-transmitted-infection-clinics
#8
Nguyen X Thanh, Ilke Akpinar, Jennifer Gratrix, Sabrina Plitt, Petra Smyczek, Ron Read, Philip Jacobs, Tom Wong, Ameeta E Singh
Adding universal rectal screening to urogenital screening should positively impact rectal Chlamydia trachomatis (CT) incidence in affected populations. A dynamic Markov model was used to evaluate costs and outcomes of three rectal CT screening strategies among women attending sexually transmitted infection clinics in Alberta, Canada: universal urogenital-only screening (UG-only), additional selected (exposure-based) rectal screening (UG+SR), and additional universal rectal screening (UG+UR). The model included two mutually exclusive health states: infected and susceptible...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28522687/integrin-linked-kinase-signaling-promotes-cyst-growth-and-fibrosis-in-polycystic-kidney-disease
#9
Archana Raman, Gail A Reif, Yuqiao Dai, Aditi Khanna, Xiaogang Li, Lindsay Astleford, Stephen C Parnell, James P Calvet, Darren P Wallace
Autosomal dominant polycystic kidney disease (ADPKD) is characterized by innumerous fluid-filled cysts and progressive deterioration of renal function. Previously, we showed that periostin, a matricellular protein involved in tissue repair, is markedly overexpressed by cyst epithelial cells. Periostin promotes cell proliferation, cyst growth, interstitial fibrosis, and the decline in renal function in PKD mice. Here, we investigated the regulation of these processes by the integrin-linked kinase (ILK), a scaffold protein that links the extracellular matrix to the actin cytoskeleton and is stimulated by periostin...
May 18, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28512715/management-of-rainwater-harvesting-and-its-impact-on-the-health-of-people-in-the-middle-east-case-study-from-yatta-town-palestine
#10
Ilke Celik, Lina M A Tamimi, Issam A Al-Khatib, Defne S Apul
Water-related diseases are a primary problem in Palestine where many residents revert to harvested rainwater as their primary water source due to water shortages within the area. From an environmental engineering perspective, it is already well known that certain situations (e.g., cross contamination) reduce drinking water quality and ultimately cause diseases in a population. In this study, we investigated the social practices and situations that may lead to lower disease occurrence. Towards this goal, we surveyed 382 residents in Yatta to collect data on the water-related diseases that they experienced and the specific situations that might affect the disease occurrences such as the residents' practices (i) for maintaining a high quality of cistern water, (ii) for maintaining the environment around the cistern, and (iii) for managing the wastewater...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28503731/a-microfluidic-ion-pump-for-in-vivo-drug-delivery
#11
Ilke Uguz, Christopher M Proctor, Vincenzo F Curto, Anna-Maria Pappa, Mary J Donahue, Magali Ferro, Róisín M Owens, Dion Khodagholy, Sahika Inal, George G Malliaras
Implantable devices offer an alternative to systemic delivery of drugs for the treatment of neurological disorders. A microfluidic ion pump (µFIP), capable of delivering a drug without the solvent through electrophoresis, is developed. The device is characterized in vitro by delivering γ-amino butyric acid to a target solution, and demonstrates low-voltage operation, high drug-delivery capacity, and high ON/OFF ratio. It is also demonstrated that the device is suitable for cortical delivery in vivo by manipulating the local ion concentration in an animal model and altering neural behavior...
May 15, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28495591/the-hla-dr-mediated-signalling-increases-the-migration-and-invasion-of-melanoma-cells-the-expression-and-lipid-raft-recruitment-of-adhesion-receptors-pd-l1-and-signal-transduction-proteins
#12
Francesca Costantini, Giovanna Barbieri
The constitutive expression of Major Histocompatibility Complex (MHC) class II molecules is restricted to professional Antigen-Presenting Cells (APCs), nevertheless almost 50% of melanomas express constitutively the MHC class II molecules. Therefore, in two MHC class II constitutive expressing melanoma cell lines we studied the signalling mediated by the HLA-DR molecules in the aim to understand the consequence of class II mediated signalling on metastatic dissemination of melanoma. In particular, we reported that the HLA-DR mediated signalling play a new role in melanoma progression, increasing the migration and invasion of melanoma cells...
May 8, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28490443/peripheral-insulin-resistance-in-ilk-depleted-mice-by-reduction-of-glut4-expression
#13
Marco Hatem-Vaquero, Mercedes Griera, Andrea Garcia-Jerez, Alicia Luengo, Julia Alvarez-Hernandez, Jose Antonio Rubio-Garcia, Laura Calleros, Diego Rodriguez-Puyol, Manuel Rodriguez-Puyol, Sergio de Frutos
The development of insulin resistance is characterized by the impairment of glucose uptake mediated by glucose transporter 4 (GLUT4). Extracellular matrix changes are induced when the metabolic dysregulation is sustained. The present work was devoted to analyze the possible link between the extracellular-to-intracellular mediator integrin linked kinase (ILK) and the peripheral tissue modification that leads to glucose homeostasis impairment. Mice with general depletion of ILK in adulthood (cKD-ILK) maintained in a chow diet exhibited increased glycaemia and insulinemia concurrently with a reduction of the expression and membranes presence of GLUT4 in the insulin-sensitive peripheral tissues compared with their wildtype littermates (WT)...
May 10, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28488569/gene-expression-in-the-liver-remnant-is-significantly-affected-by-the-size-of-partial-hepatectomy-an-experimental-rat-study
#14
Michelle Meier, Anders Riegels Knudsen, Kasper Jarlhelt Andersen, Niels Christian Bjerregaard, Uffe Birk Jensen, Frank Viborg Mortensen
Background Extended hepatectomies may result in post-hepatectomy liver failure, a conditionwith a high mortality. The main purpose of the present study was to investigate and compare the gene expression profiles in rats subjected to increasing size of partial hepatectomy.Methods 30 Wistar rats were subjected to 30%, 70%, or 90% partial hepatectomy, sham operation or no operation. 24 hours following resection liver tissue was harvested and genome wide expression analysis was performed.Results Cluster analysis revealed 2 main groupings, one containing the PH(90%) and one containing the remaining groups (baseline, sham, PH(30%) and PH(70%))...
May 9, 2017: Gene Expression
https://www.readbyqxmd.com/read/28485142/low-temperature-cross-linking-of-pedot-pss-films-using-divinylsulfone
#15
Daniele Mantione, Isabel Del Agua, Wandert Schaafsma, Mohammed ElMahmoudy, Ilke Uguz, Ana Sanchez-Sanchez, Haritz Sardon, Begoña Castro, George G Malliaras, David Mecerreyes
Recent interest in bioelectronics has prompted the exploration of properties of conducting polymer films at the interface with biological milieus. Poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate) (PEDOT:PSS) from a commercially available source has been used as a model system for these studies. Different cross-linking schemes have been used to stabilize films of this material against delamination and redispersion, but the cost is a decrease in the electrical conductivity and/or additional heat treatment...
May 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28457660/ilk-regulates-mscs-survival-and-angiogenesis-partially-through-akt-and-mtor-signaling-pathways
#16
Bin Zeng, Lei Liu, Shaofeng Wang, Zhiguo Dai
Mesenchymal stem cells (MSCs) exert therapeutic effects on treating acute myocardial infarction (AMI). Angiogenesis in ischemic heart can promote the supply of oxygen and nutrients to both ischemic myocardium and transplanted stem cells. Focus is then given to the evolving strategies amied at angiogenesis. ILK has been reported to be an important factor regulating apoptosis and angiogenesis. This study examined the role and mechanism of ILK in MSCs survival and angiogenesis. In hypoxic condition, upregulation of ILK expression increased the phosphorylation of Akt and mTOR, resulting in markedly enchanced MSCs survival and VEGF expression; while significantly inhibited MSCs survival and VEGF expression was detected in MSCs with ILK kinase inactivation, which was associated with a reduction of phosphorylation of Akt and mTOR...
April 28, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28428104/tumor-budding-in-intestinal-type-gastric-adenocarcinoma-is-associated-with-nodal-metastasis-and-recurrence
#17
Stephen Olsen, Jin Linda, Ryan C Fields, Yan Yan, ILKe Nalbantoglu
Gastric adenocarcinoma (GAC) is a common cause of cancer-related death worldwide. GAC can be classified as intestinal or diffuse. Intestinal type cancers are common and reported to have a better prognosis compared to diffuse cancers. Studies have shown the presence and amount of tumor budding in intestinal carcinomas of the colon and esophagus to predict nodal metastasis and recurrence. Our aim is to determine if tumor budding in intestinal type GAC correlates with prognostic features. One hundred four patients treated with primary surgical excision between 1999-2013 were identified...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28421082/insights-into-the-structure-function-and-ion-mediated-signaling-pathways-transduced-by-plant-integrin-linked-kinases
#18
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/28414468/1-3-dipolar-cycloaddition-reactions-of-low-valent-rhodium-and-iridium-complexes-with-arylnitrile-n-oxides
#19
Ilke Ugur, Sesil Agopcan Cinar, Burcu Dedeoglu, Viktorya Aviyente, M Frederick Hawthorne, Peng Liu, Fang Liu, K N Houk, Gonzalo Jiménez-Osés
The reactions between low-valent Rh(I) and Ir(I) metal-carbonyl complexes and arylnitrile oxides possess the electronic and structural features of 1,3-dipolar cycloadditions. Density functional theory (DFT) calculations on these reactions, involving both cyclopentadienyl and carboranyl ligands on the metal carbonyl, explain the ease of the chemical processes and the stabilities of the resulting metallaisoxazolin-5-ones. The metal-carbonyl bond has partial double bond character according to the Wiberg index calculated through NBO analysis, and so the reaction can be considered a normal 1,3-dipolar cycloaddition involving M═C bonds...
April 27, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28413908/molecular-mechanisms-involved-in-podocyte-emt-and-concomitant-diabetic-kidney-diseases-an-update
#20
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
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