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https://www.readbyqxmd.com/read/28535907/suppression-of-epithelial-restitution-using-an-inhibitor-against-rho-associated-coiled-coil-containing-protein-kinase-aggravates-colitis-through-reduced-epithelial-expression-of-a-kinase-anchor-protein-13
#1
Yumi Kangawa, Toshinori Yoshida, Yutaka Yonezawa, Kiyoshi Maruyama, Shim-Mo Hayashi, Makoto Shibutani
In the gastrointestinal tract, the immediate healing response to mucosal damage is critical to sustain mucosal homeostasis. The migration of surrounding epithelial cells to cover the denuded area without proliferation is termed restitution, followed by early reparation of the damage. In this study, we determined the role of A-kinase anchor protein 13 (AKAP13) in mice with dextran sulphate sodium (DSS)-induced colitis upon mucosal injury and restitution, and investigated whether inhibition of Rho-associated coiled-coil containing protein kinase (ROCK), downstream effector of AKAP13, affects these mucosal responses...
May 20, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28534935/effect-of-fasudil-on-cognitive-function-following-status-convulsion-in-rats
#2
Rong He, Wei Han, Xiaojie Song, Xiaoju Tang, Li Cheng, Li Jiang
Fasudil has been demonstrated to possess a protective effect in neural injury; however, its protective effect on convulsive brain injury remains to be assessed. The aim of the present study was to investigate the latent mechanism and effect of fasudil on cognitive function following status convulsion (SC) in rats. Initially, to determine the effects of SC, the expression levels of Ras homolog gene family, member A (RhoA)/Rho‑associated protein kinase (ROCK) signaling pathway‑associated proteins were measured by western blot analysis in 16 rats...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28526517/regulation-of-rhoa-rock-and-sustained-arterial-contraction-by-low-cytosolic-ca-2-levels-during-prolonged-depolarization-of-arterial-smooth-muscle
#3
Cristina Porras-González, Antonio Ordóñez, Antonio Castellano, Juan Ureña
The role of L-type Ca(2+) channels (LTCCs) and RhoA/Rho kinase (ROCK) on depolarization-induced sustained arterial contraction lasting several minutes is already known. However, in vivo, vascular smooth muscle cells can be depolarized for longer periods, inducing substantial inactivation of LTCCs and markedly reducing Ca(2+) influx into the myocytes. We have examined, in femoral arterial rings, the role of LTCCs and RhoA/ROCK during long-lasting depolarization. Our results reveal a new vasoreactive response after 20-30min of depolarization in 2...
May 16, 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28510599/selective-inhibition-of-brain-endothelial-rho-kinase-2-provides-optimal-protection-of-an-in-vitro-blood-brain-barrier-from-tissue-type-plasminogen-activator-and-plasmin
#4
Be'eri Niego, Natasha Lee, Pia Larsson, T Michael De Silva, Amanda E-Ling Au, Fiona McCutcheon, Robert L Medcalf
Rho-kinase (ROCK) inhibition, broadly utilised in cardiovascular disease, may protect the blood-brain barrier (BBB) during thrombolysis from rt-PA-induced damage. While the use of nonselective ROCK inhibitors like fasudil together with rt-PA may be hindered by possible hypotensive side-effects and inadequate capacity to block detrimental rt-PA activity in brain endothelial cells (BECs), selective ROCK-2 inhibition may overcome these limitations. Here, we examined ROCK-2 expression in major brain cells and compared the ability of fasudil and KD025, a selective ROCK-2 inhibitor, to attenuate rt-PA-induced BBB impairment in an in vitro human model...
2017: PloS One
https://www.readbyqxmd.com/read/28501981/protective-effect-of-gentianine-a-compound-from-du-huo-ji-sheng-tang-against-freund-s-complete-adjuvant-induced-arthritis-in-rats
#5
Chen Wenjin, Wang Jianwei
The anti-inflammatory property of gentianine (GE) aroused our interest. To investigate the effect of GE on Freund's complete adjuvant (FCA)-induced arthritis in rats was the aim of this study. Adjuvant-induced arthritis (AA) was induced by the administration of 0.1 ml FCA in the surface of hind paw. Diclofenac sodium (DS) and Fasudil were administered as positive controls. Downregulation of cytokines including interleukin-6 (IL-6), interleukin-1 beta (IL-1β), and tumor necrosis factor-alpha (TNF-α) revealed anti-inflammatory effect of GE, which was consisted with pathological conditions of rat paws...
May 13, 2017: Inflammation
https://www.readbyqxmd.com/read/28501682/the-role-of-arachidonic-acid-cyclooxygenase-cascade-phosphodiesterase-iv-and-rho-kinase-in-h2s-induced-relaxation-in-the-mouse-corpus-cavernosum
#6
Fatma Aydinoglu, Nuran Ogulener
BACKGROUND: Penile corpus cavernosum is an extremely vascularized tissue and cavernosal smooth muscle tone is regulated by the balance between contractile and relaxant factor. We investigated the possible role of arachidonic acid/cyclooxygenase cascade, phosphodiesterase IV (PDEIV) and Rho-kinase in exogenous hydrogen sulfide (H2S)-induced relaxation in mouse corpus cavernosum. METHODS: The relaxant response to H2S (NaHS as exogenous H2S; 1-1000μM) were obtained in isolated mouse corpus cavernosum tissues which pre-contracted by phenylephrine (5μM)...
February 24, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28493050/fasudil-ameliorates-endothelial-dysfunction-in-streptozotocin-induced-diabetic-rats-a-possible-role-of-rho-kinase
#7
Amal Hofni, Basim A Shehata Messiha, Safwat A Mangoura
Endothelial dysfunction is a major contributor to the pathogenesis of vascular disease in diabetes mellitus and RhoA/Rho-kinase (ROCK) system appears to play a crucial role in this setting. The present study was conducted to investigate the effect of the selective ROCK inhibitor, fasudil, on diabetes-related endothelial dysfunction and elucidated its underlying mechanism(s). Diabetes was induced by a single intraperitoneal injection of streptozotocin (STZ, 50 mg/kg), and fasudil (5 mg/kg per day) was orally administered for 8 weeks...
May 11, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28470298/fluorescence-enhancement-and-pka-shift-of-a-rho-kinase-inhibitor-by-a-synthetic-receptor
#8
Hang Yin, Linmin Chen, Binrui Yang, David Bardelang, Chunming Wang, Simon M Y Lee, Ruibing Wang
Fasudil (FSD), a selective rho kinase (ROCK) inhibitor, was found to form 1 : 1 host-guest inclusion complexes with a synthetic macrocyclic receptor, cucurbit[7]uril (CB[7]), in aqueous solutions, as evidenced by (1)H NMR, photoluminescence and UV-visible spectroscopic titrations, isothermal titration calorimetry (ITC) titration, and electrospray ionization (ESI) mass spectrometry, as well as density functional theory (DFT) molecular modeling. Upon encapsulation, whereas the UV-vis absorbance of FSD experienced a moderate decrease and bathochromic shift, the fluorescence intensity of FSD at 354 nm was dramatically enhanced for up to 69-fold at neutral pH, which could potentially be applied in fluorescent tracking of the drug delivery and release...
May 23, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28437280/inhibition-of-rho-kinase-attenuates-left-ventricular-remodeling-caused-by-chronic-intermittent-hypoxia-in-rats-via-suppressing-myocardial-inflammation-and-apoptosis
#9
Zhi-Hua Wang, Die Zhu, Sheng Xie, Yan Deng, Yueying Pan, Jie Ren, Hui-Guo Liu
Chronic intermittent hypoxia (CIH), the hallmark of obstructive sleep apnea syndrome (OSAS), has been reported to play a key role in the development of OSAS-associated cardiovascular diseases including cardiac remodeling. RhoA/Rho-kinase (ROCK) pathway has also been implicated in myocardial remodeling, but the exact mechanisms are not fully elucidated. The current study's purpose is to investigate the influence of fasudil, a selective ROCK inhibitor, on CIH-induced left ventricular remodeling in rats and its possible mechanisms...
April 18, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28416371/modulation-by-nadph-oxidase-of-the-chronic-cardiovascular-and-autonomic-interaction-between-cyclosporine-and-nsaids-in-female-rats
#10
Ahmed F El-Yazbi, Karim S Ibrahim, Hanan M El-Gowelli, Nevine M El-Deeb, Mahmoud M El-Mas
Cyclosporine (CSA) and nonsteroidal antiinflammatory drugs (NSAIDs) are used together to manage arthritic disorders with an immune component. Previous reports showed contrasting effects for NSAIDs on CSA nephrotoxicity and acute elevations in blood pressure. Both effects were ameliorated or exaggerated after selective cyclooxygenase-2 (COX2) and nonselective COX inhibition, respectively. Here we investigated: (i) the interaction of CSA with NSAIDs possessing variable COX1/COX2 selectivities on hemodynamic, left ventricular (LV) and cardiac autonomic and histologic profiles, and (ii) role of NADPH-oxidase (NOX)/Rho-kinase (ROCK) pathway in the interaction...
April 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28396402/apc-c-cdh1-rock2-pathway-controls-dendritic-integrity-and-memory
#11
Verónica Bobo-Jiménez, María Delgado-Esteban, Julie Angibaud, Irene Sánchez-Morán, Antonio de la Fuente, Javier Yajeya, U Valentin Nägerl, José Castillo, Juan P Bolaños, Angeles Almeida
Disruption of neuronal morphology contributes to the pathology of neurodegenerative disorders such as Alzheimer's disease (AD). However, the underlying molecular mechanisms are unknown. Here, we show that postnatal deletion of Cdh1, a cofactor of the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase in neurons [Cdh1 conditional knockout (cKO)], disrupts dendrite arborization and causes dendritic spine and synapse loss in the cortex and hippocampus, concomitant with memory impairment and neurodegeneration, in adult mice...
April 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28387604/des-ncrna-a-knowledgebase-for-exploring-information-about-human-micro-and-long-noncoding-rnas-based-on-literature-mining
#12
Adil Salhi, Magbubah Essack, Tanvir Alam, Vladan P Bajic, Lina Ma, Aleksandar Radovanovic, Benoit Marchand, Sebastian Schmeier, Zhang Zhang, Vladimir B Bajic
Noncoding RNAs (ncRNAs), particularly microRNAs (miRNAs) and long ncRNAs (lncRNAs), are important players in diseases and emerge as novel drug targets. Thus, unraveling the relationships between ncRNAs and other biomedical entities in cells are critical for better understanding ncRNA roles that may eventually help develop their use in medicine. To support ncRNA research and facilitate retrieval of relevant information regarding miRNAs and lncRNAs from the plethora of published ncRNA-related research, we developed DES-ncRNA ( www...
April 7, 2017: RNA Biology
https://www.readbyqxmd.com/read/28386357/fasudil-inhibits-proliferation-and-collagen-synthesis-and-induces-apoptosis-of-human-fibroblasts-derived-from-urethral-scar-via-the-rho-rock-signaling-pathway
#13
Ning Xu, Shao-Hao Chen, Gen-Yi Qu, Xiao-Dong Li, Wen Lin, Xue-Yi Xue, Yun-Zhi Lin, Qing-Shui Zheng, Yong Wei
Fasudil has shown antifibrotic effects in various fibrotic diseases. However, its effects on human urethral fibroblasts are unknown. This study evaluated the effects of fasudil on cellular proliferation, migration, apoptosis, and collagen synthesis in human fibroblasts derived from urethral scar tissues. Human urethral scar fibroblasts were cultured by explant and incubated for 24 h or 48 h with fasudil (12.5, 25, 50 µmol/L) with or without transforming growth factor β1 (TGF-β1, 10 ng/mL), or left untreated (control)...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28381539/transient-tissue-priming-via-rock-inhibition-uncouples-pancreatic-cancer-progression-sensitivity-to-chemotherapy-and-metastasis
#14
Claire Vennin, Venessa T Chin, Sean C Warren, Morghan C Lucas, David Herrmann, Astrid Magenau, Pauline Melenec, Stacey N Walters, Gonzalo Del Monte-Nieto, James R W Conway, Max Nobis, Amr H Allam, Rachael A McCloy, Nicola Currey, Mark Pinese, Alice Boulghourjian, Anaiis Zaratzian, Arne A S Adam, Celine Heu, Adnan M Nagrial, Angela Chou, Angela Steinmann, Alison Drury, Danielle Froio, Marc Giry-Laterriere, Nathanial L E Harris, Tri Phan, Rohit Jain, Wolfgang Weninger, Ewan J McGhee, Renee Whan, Amber L Johns, Jaswinder S Samra, Lorraine Chantrill, Anthony J Gill, Maija Kohonen-Corish, Richard P Harvey, Andrew V Biankin, T R Jeffry Evans, Kurt I Anderson, Shane T Grey, Christopher J Ormandy, David Gallego-Ortega, Yingxiao Wang, Michael S Samuel, Owen J Sansom, Andrew Burgess, Thomas R Cox, Jennifer P Morton, Marina Pajic, Paul Timpson
The emerging standard of care for patients with inoperable pancreatic cancer is a combination of cytotoxic drugs gemcitabine and Abraxane, but patient response remains moderate. Pancreatic cancer development and metastasis occur in complex settings, with reciprocal feedback from microenvironmental cues influencing both disease progression and drug response. Little is known about how sequential dual targeting of tumor tissue tension and vasculature before chemotherapy can affect tumor response. We used intravital imaging to assess how transient manipulation of the tumor tissue, or "priming," using the pharmaceutical Rho kinase inhibitor Fasudil affects response to chemotherapy...
April 5, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28363184/treatment-with-platelet-derived-growth-factor-pdgf-and-rock-inhibitors-is-related-to-declined-nerve-growth-factor-ngf-signaling-in-an-experimental-model-of-rat-pulmonary-hypertension
#15
Magdalena Jasińska-Stroschein, Katarzyna Oszajca, Weronika Świtlik, Justyna Ruchwa, Daria Orszulak-Michalak
BACKGROUND: Recent studies reveal that nerve growth factor (NGF) plays a critical role in the pathobiology of pulmonary hypertension (PH). The aim of the present study is to clarify the relationship between NGF signaling and treatment with PDGF or ROCK inhibitors in an animal model of PH. METHODS: Lung tissues were obtained from animals with monocrotaline (MCT)-challenged PH which had been administered long term imatinib, fasudil or statin. Reversal of disease was indicated by decreases in right ventricle pressure (RVP) and hypertrophy...
June 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28284330/inhibition-of-ages-rage-rho-rock-pathway-suppresses-non-specific-neuroinflammation-by-regulating-bv2-microglial-m1-m2-polarization-through-the-nf-%C3%AE%C2%BAb-pathway
#16
Jingkao Chen, Zhaowei Sun, Minghua Jin, Yalin Tu, Shengnan Wang, Xiaohong Yang, Qiuhe Chen, Xiao Zhang, Yifan Han, Rongbiao Pi
The microglia-mediated neuroinflammation plays an important role in the pathogenesis of Alzheimer's disease (AD). Advanced glycation end products (AGEs)/receptor for advanced glycation end products (RAGE) or Rho/Rho kinase (ROCK) are both involved in the development of non-specific inflammation. However, there are few reports about their effects on neuroinflammation. Here, we explored the mechanism of AGEs/RAGE/Rho/ROCK pathway underlying the non-specific inflammation and microglial polarization in BV2 cells...
April 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28277985/indoxyl-sulfate-potentiates-endothelial-dysfunction-via-reciprocal-role-for-reactive-oxygen-species-and-rhoa-rock-signaling-in-5-6-nephrectomized-rats
#17
Shuang Chu, Xiaodong Mao, Hengjiang Guo, Li Wang, Zezheng Li, Yang Zhang, Yunman Wang, Hao Wang, Xuemei Zhang, Wen Peng
Accumulative indoxyl sulfate (IS) retained in chronic kidney disease (CKD) can potentiate vascular endothelial dysfunction, and herein, we aim at elucidating the underlying mechanisms from the perspective of possible association between reactive oxygen species (ROS) and RhoA/ROCK pathway. IS-treated nephrectomized rats are administered with antioxidants including NADPH oxidase inhibitor apocynin, SOD analog tempol, and mitochondrion-targeted SOD mimetic mito-TEMPO to scavenge ROS, or ROCK inhibitor fasudil to obstruct RhoA/ROCK pathway...
March 13, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28225457/rhoa-rock-pathway-inhibition-by-fasudil-suppresses-the-vasculogenic-mimicry-of-u2os-osteosarcoma-cells-in-vitro
#18
Yun Xia, Xianyi Cai, Jiquan Fan, Liling Zhang, Zhenyu Li, Jinghua Ren, Gang Wu, Fang Zhu
GTPase RhoA and its downstream Rho-associated coiled-coil-containing protein kinases (ROCKs) are frequently overexpressed in human cancers. Inhibition of the RhoA/ROCK pathway blocks angiogenesis mediated by the vascular endothelial growth factor, which led us to investigate the role of this pathway in vasculogenic mimicry (VM) - a process by which aggressive cancer cells form vessel-like structures that provide adequate blood supply for tumor growth. We showed that the expression of RhoA and its effector kinases ROCK1/2 was much higher in human osteosarcoma (OS) tissues and the human OS cell line U2OS than in nontumorous tissues and cell line hFOB 1...
June 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28223486/serum-borne-bioactivity-caused-by-pulmonary-multiwalled-carbon-nanotubes-induces-neuroinflammation-via-blood-brain-barrier-impairment
#19
Mario J Aragon, Lauren Topper, Christina R Tyler, Bethany Sanchez, Katherine Zychowski, Tamara Young, Guy Herbert, Pamela Hall, Aaron Erdely, Tracy Eye, Lindsey Bishop, Samantha A Saunders, Pretal P Muldoon, Andrew K Ottens, Matthew J Campen
Pulmonary exposure to multiwalled carbon nanotubes (MWCNTs) causes indirect systemic inflammation through unknown pathways. MWCNTs translocate only minimally from the lungs into the systemic circulation, suggesting that extrapulmonary toxicity may be caused indirectly by lung-derived factors entering the circulation. To assess a role for MWCNT-induced circulating factors in driving neuroinflammatory outcomes, mice were acutely exposed to MWCNTs (10 or 40 µg/mouse) via oropharyngeal aspiration. At 4 h after MWCNT exposure, broad disruption of the blood-brain barrier (BBB) was observed across the capillary bed with the small molecule fluorescein, concomitant with reactive astrocytosis...
March 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28197417/basal-and-activated-calcium-sensitization-mediated-by-rhoa-rho-kinase-pathway-in-rats-with-genetic-and-salt-hypertension
#20
Michal Behuliak, Michal Bencze, Ivana Vaněčková, Jaroslav Kuneš, Josef Zicha
Calcium sensitization mediated by RhoA/Rho kinase pathway can be evaluated either in the absence (basal calcium sensitization) or in the presence of endogenous vasoconstrictor systems (activated calcium sensitization). Our aim was to compare basal and activated calcium sensitization in three forms of experimental hypertension with increased sympathetic tone and enhanced calcium entry-spontaneously hypertensive rats (SHR), heterozygous Ren-2 transgenic rats (TGR), and salt hypertensive Dahl rats. Activated calcium sensitization was determined as blood pressure reduction induced by acute administration of Rho kinase inhibitor fasudil in conscious rats with intact sympathetic nervous system (SNS) and renin-angiotensin system (RAS)...
2017: BioMed Research International
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