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https://www.readbyqxmd.com/read/29191563/tgf-%C3%AE-1-p53-signaling-in-renal-fibrogenesis
#1
Stephen P Higgins, Yi Tang, Craig E Higgins, Badar Mian, Wenzheng Zhang, Ralf-Peter Czekay, Rohan Samarakoon, David J Conti, Paul J Higgins
Fibrotic disorders of the renal, pulmonary, cardiac, and hepatic systems are associated with significant morbidity and mortality. Effective therapies to prevent or curtail the advancement to organ failure, however, remain a major clinical challenge. Chronic kidney disease, in particular, constitutes an increasing medical burden affecting >15% of the US population. Regardless of etiology (diabetes, hypertension, ischemia, acute injury, urologic obstruction), persistently elevated TGF-β1 levels are causatively linked to the activation of profibrotic signaling networks and disease progression...
November 28, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29190781/roles-of-cd34-cells-and-alk5-signaling-in-the-reconstruction-of-seminiferous-tubule-like-structures-in-3-d-re-aggregate-culture-of-dissociated-cells-from-neonatal-mouse-testes
#2
Shin-Ichi Abe, Kazuko Abe, Jidong Zhang, Tomoaki Harada, Go Mizumoto, Hiroki Oshikawa, Haruhiko Akiyama, Kenji Shimamura
Tissue reconstruction in vitro can provide, if successful, a refined and simple system to analyze the underlying mechanisms that drive the morphogenesis and maintain the ordered structure. We have recently succeeded in reconstruction of seminiferous cord-like and tubule-like structures using 3-D re-aggregate culture of dissociated testicular cells. In testis formation, endothelial cells that migrated from mesonephroi to embryonic gonads have been shown to be critical for development of testis cords, but how endothelial cells contribute to testis cord formation remains unknown...
2017: PloS One
https://www.readbyqxmd.com/read/29113082/tgf-%C3%AE-1-smad3-signaling-pathway-mediates-t-2-toxin-induced-decrease-of-type-ii-collagen-in-cultured-rat-chondrocytes
#3
Yang Li, Ning Zou, Jing Wang, Ke-Wei Wang, Fu-Yuan Li, Fu-Xun Chen, Bing-Yu Sun, Dian-Jun Sun
T-2 toxin can cause damage to the articular cartilage, but the molecular mechanism remains unclear. By employing the culture of rat chondrocytes, we investigated the effect of the TGF-β1/Smad3 signaling pathway on the damage to chondrocytes induced by T-2 toxin. It was found that T-2 toxin could reduce cell viability and increased the number of apoptotic cells when compared with the control group. After the addition of the T-2 toxin, the production of type II collagen was reduced at mRNA and protein levels, while the levels of TGF-β1, Smad3, ALK5, and MMP13 were upregulated...
November 5, 2017: Toxins
https://www.readbyqxmd.com/read/29064324/2d-qsar-study-molecular-docking-and-molecular-dynamics-simulation-studies-of-interaction-mechanism-between-inhibitors-and-transforming-growth-factor-beta-receptori-alk5
#4
Meng-Nan Jiang, Xiao-Ping Zhou, Dong-Ru Sun, Huan Gao, Qing-Chuan Zheng, Hong-Xing Zhang, Di Liang
Transforming growth factor type 1 receptor (ALK5) is kinase associated with a wide variety of pathological processes, and inhibition of ALK5 is a good strategy to treat many kinds of cancer and fibrotic diseases. Recently a series of compounds have been synthesized as ALK5 inhibitors. However, the study of their selectivity against other potential targets remains elusive. In this research, adataset of ALK5 inhibitors were collected and studied based on the combination of 2D-QSAR, molecular docking and molecular dynamics simulation...
October 24, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28969055/mir-338-3p-inhibits-the-invasion-of-renal-cell-carcinoma-by-downregulation-of-alk5
#5
Xiaoqian Zhang, Chunxia Wang, Hui Li, Xiaobin Niu, Xinwei Liu, Dongxu Pei, Xiaolan Guo, Xiaona Xu, Yongwei Li
BACKGROUND: The current study aims to elucidate the role of miRNA-338-3p (miR-338-3p) in the invasion of renal cell carcinoma (RCC). METHODS: Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was performed to detect the expression of miR-338-3p in human RCC cell lines with high metastatic potential (Caki-1) and low metastatic potential (786-O), respectively. The Caki-1 and 786-O cells were transfected with miR-338-3p mimic or inhibitor. Wound healing assay, Transwell assay and western blotting were performed to analyze the invasive ability and expression of activin receptor-like kinase 5 (ALK5) in the RCC cell lines...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28939526/inhibition-of-the-tgf-%C3%AE-1-smad-signaling-pathway-protects-against-cartilage-injury-and-osteoarthritis-in-a-rat-model
#6
Yong-Jian Wang, Min Shen, Shan Wang, Xin Wen, Xin-Rui Han, Zi-Feng Zhang, Hui Li, Fei Wang, Dong-Mei Wu, Jun Lu, Yuan-Lin Zheng
Transforming growth factor-β1 (TGF-β1) in osteoblastic cells triggers pathological changes observed in osteoarthritis (OA). Thus, we hypothesized that the inhibition of the TGF-β1/Smad signaling pathway could act to protect against cartilage injury in rats with OA. After establishment of rat models induced by papain and L-cysteine, rats were subsequently assigned into the TβRI inhibitors, normal control (NC) and OA model groups. RT-qPCR and western blotting were performed to determine mRNA and protein expressions of TGFβ1, Smad2, Smad3 and Activin receptor-like kinase 5 (ALK5), respectively...
November 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28842394/transforming-growth-factor-%C3%AE-1-activin-receptor-like-kinase-5-mediated-cell-migration-is-dependent-on-the-protein-proteinase-activated-receptor-2-but-not-on-proteinase-activated-receptor-2-stimulated-gq-calcium-signaling
#7
Hendrik Ungefroren, David Witte, Koichiro Mihara, Bernhard H Rauch, Petra Henklein, Olaf Jöhren, Shirin Bonni, Utz Settmacher, Hendrik Lehnert, Morley D Hollenberg, Roland Kaufmann, Frank Gieseler
Transforming growth factor-β (TGF-β), serine proteinases such as trypsin, and proteinase-activated receptor 2 (PAR2) promote tumor development by stimulating invasion and metastasis. Previously, we found that in cancer cells derived from pancreatic ductal adenocarcinoma (PDAC) PAR2 protein is necessary for TGF-β1-dependent cell motility. Here, we show in the same cells that, conversely, the type I TGF-β receptor activin receptor-like kinase 5 is dispensable for trypsin and PAR2 activating peptide (PAR2-AP)-induced migration...
November 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28815607/a-3d-tri-culture-system-reveals-that-activin-receptor-like-kinase-5-and-connective-tissue-growth-factor-drive-human-glomerulosclerosis
#8
John P Waters, Yvonne C Richards, Jeremy N Skepper, Mark Southwood, Paul D Upton, Nicholas W Morrell, Jordan S Pober, John R Bradley
Glomerular scarring, known as glomerulosclerosis, occurs in many chronic kidney diseases and involves interaction between glomerular endothelial cells (GECs), podocytes, and mesangial cells (MCs), leading to signals that promote extracellular matrix deposition and endothelial cell dysfunction and loss. We describe a 3D tri-culture system to model human glomerulosclerosis. In 3D monoculture, each cell type alters its phenotype in response to TGFβ, which has been implicated as an important mediator of glomerulosclerosis...
November 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28781950/role-of-the-tgf-%C3%AE-pathway-in-dedifferentiation-of-human-mature-adipocytes
#9
Julie Anne Côté, Julie Lessard, Mélissa Pelletier, Simon Marceau, Odette Lescelleur, Julie Fradette, André Tchernof
Dedifferentiation of adipocytes contributes to the generation of a proliferative cell population that could be useful in cellular therapy or tissue engineering. Adipocytes can dedifferentiate into precursor cells to acquire a fibroblast-like phenotype using ceiling culture, in which the buoyancy of fat cells is exploited to allow them to adhere to the inner surface of a container. Ceiling culture is usually performed in flasks, which limits the ability to test various culture conditions. Using a new six-well plate ceiling culture approach, we examined the relevance of TGF-β signaling during dedifferentiation...
August 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28779848/tgf-%C3%AE-1-stimulates-cyclooxygenase-2-expression-and-pge2-production-of-human-dental-pulp-cells-role-of-alk5-smad2-and-mek-erk-signal-transduction-pathways
#10
Po-Shuen Lin, Ru-Hsiu Cheng, Mei-Chi Chang, Jang-Jaer Lee, Hsiao-Hua Chang, Wei-Ling Huang, Sin-Yuet Yeung, Ya-Ching Chang, Jiiang-Huei Jeng
BACKGROUND/PURPOSES: TGF-β1 is an important growth factor that may influence the odontoblast differentiation and matrix deposition in the reactionary/reparative dentinogenesis to dental caries or other tooth injuries. TGF-β1 exerts its effects through various signaling pathways, such as Smads and MAPKs. Cyclooxygenase-2 (COX-2) is a membrane-associated enzyme that produces prostaglandin E2 (PGE2) at sites of pulpal injury and inflammation, which leads to tissue swelling, redness and pain...
August 2, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28767427/mir-338-3p-inhibits-the-invasion-of-renal-cell-carcinoma-by-downregulation-of-alk5
#11
Xiaoqian Zhang, Chunxia Wang, Hui Li, Xiaobin Niu, Xinwei Liu, Dongxu Pei, Xiaolan Guo, Xiaona Xu, Yongwei Li
BACKGROUND: The current study aims to elucidate the role of miRNA-338-3p (miR-338-3p) in the invasion of renal cell carcinoma (RCC). METHODS: Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was performed to detect the expression of miR-338-3p in human RCC cell lines with high metastatic potential (Caki-1) and low metastatic potential (786-O), respectively. The Caki-1 and 786-O cells were transfected with miR-338-3p mimic or inhibitor. Wound healing assay, Transwell assay and western blotting were performed to analyze the invasive ability and expression of activin receptor-like kinase 5 (ALK5) in the RCC cell lines...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28716756/cartilage-specific-deletion-of-alk5-gene-results-in-a-progressive-osteoarthritis-like-phenotype-in-mice
#12
Q Wang, Q Y Tan, W Xu, H B Qi, D Chen, S Zhou, Z H Ni, L Kuang, J Y Guo, J L Huang, X X Wang, Z Q Wang, N Su, L Chen, B Chen, W L Jiang, Y Gao, H G Chen, X L Du, Y L Xie, L Chen
OBJECTIVE: Previous studies have shown that Transforming growth factor-β (TGF-β)/TGFβRII-Smad3 signaling is involved in articular cartilage homeostasis. However, the role of TGF-β/ALK5 signaling in articular cartilage homeostasis has not been fully defined. In this study, a combination of in vitro and in vivo approaches was used to elucidate the role of ALK5 signaling in articular cartilage homeostasis and the development of osteoarthritis (OA). DESIGN: Mice with inducible cartilage-specific deletion of Alk5 were generated to assess the role of ALK5 in OA development...
November 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28694529/the-production-of-fibroblast-growth-factor-23-is-controlled-by-tgf-%C3%AE-2
#13
Martina Feger, Philipp Hase, Bingbing Zhang, Frank Hirche, Philipp Glosse, Florian Lang, Michael Föller
Transforming growth factor-β (TGF-β) is a cytokine produced by many cell types and implicated in cell growth, differentiation, apoptosis, and inflammation. It stimulates store-operated calcium entry (SOCE) through the calcium release-activated calcium (CRAC) channel Orai1/Stim1 in endometrial Ishikawa cells. Bone cells generate fibroblast growth factor (FGF) 23, which inhibits renal phosphate reabsorption and 1,25(OH)2D3 formation in concert with its co-receptor Klotho. Moreover, Klotho and FGF23 counteract aging and age-related clinical conditions...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28632033/overexpression-of-alk5-induces-human-tenon-s-capsule-fibroblasts-transdifferentiation-and-fibrosis-in-vitro
#14
Shu-Hao Fu, Hui-Ying Wang, Jia-Ying Zhang, Hui-Min Shi, Nan Zhang, Wen Ye, Yi-Qin Xiao
PURPOSE: To investigate the involvement of activin receptor-like kinase 5 (ALK5) in human Tenon's capsule fibroblasts (HTFs) transdifferentiation and fibrosis. METHODS: (1) Cultured HTFs were treated with transforming growth factor beta 1 (TGF-β1) at different concentrations for different durations, mRNA expression of ALK5 and plasminogen activator inhibitor-1 (PAI-1) was measured by quantitative polymerase chain reaction (PCR) while protein expression of ALK5, α-smooth muscle actin (α-SMA), and extracellular matrix deposition including fibronectin (FN) and collagen I (Col1) was assessed by western blot...
February 28, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28569204/tgf%C3%AE-1-induced-smad2-3-and-smad1-5-phosphorylation-are-both-alk5-kinase-dependent-in-primary-chondrocytes-and-mediated-by-tak1-kinase-activity
#15
Arjan van Caam, Wojciech Madej, Amaya Garcia de Vinuesa, Marie-José Goumans, Peter Ten Dijke, Esmeralda Blaney Davidson, Peter van der Kraan
BACKGROUND: Dysregulated transforming growth factor β (TGFβ) signaling is implicated in osteoarthritis development, making normalizing TGFβ signaling a possible therapy. Theoretically, this can be achieved with small molecule inhibitors specifically targeting the various TGFβ receptors and downstream mediators. In this study we explore in primary chondrocytes the use of small molecule inhibitors to target TGFβ-induced pSmad1/5/9-, pSmad2/3- and TGFβ-activated kinase 1 (TAK1)-dependent signaling...
May 31, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28489883/bmp-7-induces-apoptosis-in-human-germinal-center-b-cells-and-is-influenced-by-tgf-%C3%AE-receptor-type-i-alk5
#16
Lise K Bollum, Kanutte Huse, Morten P Oksvold, Baoyan Bai, Vera I Hilden, Lise Forfang, Sun Ok Yoon, Sébastien Wälchli, Erlend B Smeland, June H Myklebust
Selection and maturation of B cells into plasma cells producing high-affinity antibodies occur in germinal centers (GC). GCs form transiently in secondary lymphoid organs upon antigen challenge, and the GC reaction is a highly regulated process. TGF-β is a potent negative regulator, but the influence of other family members including bone morphogenetic proteins (BMPs) is less known. Studies of human peripheral blood B lymphocytes showed that BMP-6 suppressed plasmablast differentiation, whereas BMP-7 induced apoptosis...
2017: PloS One
https://www.readbyqxmd.com/read/28436712/disposition-and-metabolism-of-14-c-galunisertib-a-tgf-%C3%AE-ri-kinase-alk5-inhibitor-following-oral-administration-in-healthy-subjects-and-mechanistic-prediction-of-the-effect-of-itraconazole-on-galunisertib-pharmacokinetics
#17
Kenneth C Cassidy, Ivelina Gueorguieva, Colin Miles, Jessica Rehmel, Ping Yi, William J Ehlhardt
1. The disposition and metabolism of galunisertib (LY2157299 monohydrate, a TGF-βRI Kinase/ALK5 Inhibitor) was characterized following a single oral dose of 150 mg of [(14)C]-galunisertib (100 µCi) to six healthy human subjects. 2. The galunisertib plasma half-life was 8.6 h, while the (14)C half-life was 10.0 h. Galunisertib was abundant in circulation (40.3% of the (14)C AUC024 h), with 7 additional metabolites detected in plasma. Two metabolites LSN3199597 (M5, mono-oxidation), and M4 (glucuronide of M3) were the most abundant circulating metabolites (10...
May 16, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28405618/efficacy-of-alk5-inhibition-in-myelofibrosis
#18
Lanzhu Yue, Matthias Bartenstein, Wanke Zhao, Wanting Tina Ho, Ying Han, Cem Murdun, Adam W Mailloux, Ling Zhang, Xuefeng Wang, Anjali Budhathoki, Kith Pradhan, Franck Rapaport, Huaquan Wang, Zonghong Shao, Xiubao Ren, Ulrich Steidl, Ross L Levine, Zhizhuang Joe Zhao, Amit Verma, Pearlie K Epling-Burnette
Myelofibrosis (MF) is a bone marrow disorder characterized by clonal myeloproliferation, aberrant cytokine production, extramedullary hematopoiesis, and bone marrow fibrosis. Although somatic mutations in JAK2, MPL, and CALR have been identified in the pathogenesis of these diseases, inhibitors of the Jak2 pathway have not demonstrated efficacy in ameliorating MF in patients. TGF-β family members are profibrotic cytokines and we observed significant TGF-β1 isoform overexpression in a large cohort of primary MF patient samples...
April 6, 2017: JCI Insight
https://www.readbyqxmd.com/read/28360109/focal-adhesion-kinase-signaling-determines-the-fate-of-lung-epithelial-cells-in-response-to-tgf-%C3%AE
#19
Qiang Ding, Indhu Subramanian, Tracy R Luckhardt, Pulin Che, Meghna Waghray, Xue-Ke Zhao, Nathaniel Bone, Ashish R Kurundkar, Louise Hecker, Meng Hu, Yong Zhou, Jeffrey C Horowitz, Ragini Vittal, Victor J Thannickal
Alveolar epithelial cell (AEC) injury and apoptosis are prominent pathological features of idiopathic pulmonary fibrosis (IPF). There is evidence of AEC plasticity in lung injury repair response and in IPF. In this report, we explore the role of focal adhesion kinase (FAK) signaling in determining the fate of lung epithelial cells in response to transforming growth factor-β1 (TGF-β1). Rat type II alveolar epithelial cells (RLE-6TN) were treated with or without TGF-β1, and the expressions of mesenchymal markers, phenotype, and function were analyzed...
June 1, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28359790/design-synthesis-and-optimization-of-7-substituted-pyrazolo-4-3-b-pyridine-alk5-activin-receptor-like-kinase-5-inhibitors
#20
Mark Sabat, Haixia Wang, Nick Scorah, J David Lawson, Joy Atienza, Ruhi Kamran, Mark S Hixon, Douglas R Dougan
A series of potent ALK5 inhibitors were designed using a SBDD approach and subsequently optimized to improve drug likeness. Starting with a 4-substituted quinoline screening hit, SAR was conducted using a ALK5 binding model to understand the binding site and optimize activity. The resulting inhibitors displayed excellent potency but were limited by high in vitro clearance in rat and human microsomes. Using a scaffold morphing strategy, these analogs were transformed into a related pyrazolo[4,3-b]pyridine series with improved ADME properties...
May 1, 2017: Bioorganic & Medicinal Chemistry Letters
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