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A6563

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Michal Kielbik et al.
Anti-cancer drugs, 25(10), 1141-1151 (2014-07-19)
The most important factors involved in tumor metastasis and angiogenesis are metalloproteinases (MMPs), vascular endothelial growth factor, and multifunctional transforming growth factor β1. These factors are responsible for extracellular matrix degradation, induction of vascular permeability, and enhancement of tumor cells'...
Yuanli Duan et al.
Developmental neurobiology, 69(1), 60-72 (2008-11-26)
Microglia migrate rapidly to lesions in the central nervous system (CNS), presumably in response to chemoattractants including ATP released directly or indirectly by the injury. Previous work on the leech has shown that nitric oxide (NO), generated at the lesion...
M A Brandt et al.
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.), 196(1), 30-35 (1991-01-01)
Our main objective was to test the efficacy of 6-anilino-5,8-quinolinedione (LY83583) in vivo, a putative inhibitor of cyclic guanosine 3',5'-monophosphate (cGMP) production. If the drug proved capable of lowering plasma, vascular, and kidney levels of cGMP and of inhibiting the...
Hideko Kan et al.
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology, 160(1), 94-99 (2011-06-01)
Multiple pathways from three types of multiple receptor sites to three types of metabotropic signal transduction pathways were investigated in the whole cell-clamp experiments using isolated labellar sugar receptor neurons (cells) of the adult blowfly, Phormia regina. First, the concentration-response...
Hiu-Yee Kwan et al.
Journal of vascular research, 47(2), 148-156 (2009-09-05)
ATP can activate several Ca(2+) influx channels in vascular endothelial cells. For example, it stimulates TRPC channels via capacitative and noncapacitative Ca(2+) entry (CCE and non-CCE, respectively) mechanisms; it also directly acts on P2X purinoceptors, resulting in Ca(2+) influx. In...
Charles E MacKay et al.
Free radical biology & medicine, 110, 316-331 (2017-07-05)
The role of reactive oxygen species (ROS) in smooth muscle contraction is poorly understood. We hypothesised that G-protein coupled receptor (GPCR) activation and hypoxia induce Rho-kinase activity and contraction in rat intra-pulmonary artery (IPA) via stimulation of ROS production and...
Vladimir A Snetkov et al.
Cardiovascular research, 89(1), 214-224 (2010-09-02)
the aim of this study was to determine the relative importance of Ca(2+) sensitization, ion channels, and intracellular Ca(2+) ([Ca(2+)](i)) in the mixed constrictor/relaxation actions of superoxide anion on systemic and pulmonary arteries. pulmonary and mesenteric arteries were obtained from...
Ceng Luo et al.
PLoS biology, 10(3), e1001283-e1001283 (2012-03-20)
Synaptic long-term potentiation (LTP) at spinal neurons directly communicating pain-specific inputs from the periphery to the brain has been proposed to serve as a trigger for pain hypersensitivity in pathological states. Previous studies have functionally implicated the NMDA receptor-NO pathway...
Amaury de Montaigu et al.
The Plant cell, 22(5), 1532-1548 (2010-05-06)
Nitrate assimilation in plants and related organisms is a highly regulated and conserved pathway in which the enzyme nitrate reductase (NR) occupies a central position. Although some progress has been made in understanding the regulation of the protein, transcriptional regulation...
Clayton Wright et al.
Current cancer drug targets, 17(7), 669-680 (2017-03-18)
Resveratrol has been shown to have antioxidant and anti-proliferative properties in multiple cancer types. Here we demonstrate that H460 lung cancer cells are more susceptible to resveratrol treatment in comparison to human bronchial epithelial Beas-2B cells. Resveratrol decreases cell viability...
S Gliem et al.
The European journal of neuroscience, 29(12), 2315-2326 (2009-06-06)
The main olfactory system of larval Xenopus laevis is made up of at least two subsystems consisting of subsets of olfactory receptor neurons (ORNs) with different transduction mechanisms. One ORN subset lacks the canonical cAMP transduction pathway and responds to...
I Fleming et al.
British journal of pharmacology, 103(1), 1047-1052 (1991-05-01)
1. The aim of this investigation was to study the relationship between contractile responsiveness, activation of the L-arginine pathway and tissue levels of guanosine 3':5'cyclic monophosphate (cylic GMP) in aortic rings removed from rats 4 h after intraperitoneal administration of...
Carolina G Zinn et al.
Neurobiology of learning and memory, 91(3), 266-272 (2008-10-22)
Evidence suggests that the NO/sGC/PKG pathway plays a key role in memory processing but the actual participation of this signaling cascade in the amygdala during memory consolidation remains unknown. Here, we show that when infused in the amygdala immediately after...
Peyman U Ertuğ et al.
European journal of pharmacology, 698(1-3), 379-387 (2012-10-23)
The aim of this work was to compare the preventing capacity of quercetin with Cu/Zn superoxide dismutase (Cu/Zn SOD), ascorbic acid and glutathione on nitric oxide (NO)-induced relaxation in mouse gastric fundus. Furthermore, the effects of the quercetin on the...
Shu-Ying Zhang et al.
Regulatory peptides, 164(2-3), 120-125 (2010-07-03)
Dendroaspis natriuretic peptide (DNP), a newly-described natriuretic peptide, relaxes gastrointestinal smooth muscle. L-type calcium channel currents play an important role in regulating smooth muscle contraction. The effect of DNP on L-type calcium channel currents in gastrointestinal tract is still unclear....
Greg A Knock et al.
Free radical biology & medicine, 46(5), 633-642 (2008-12-24)
Reactive oxygen species play a key role in vascular disease, pulmonary hypertension, and hypoxic pulmonary vasoconstriction. We investigated contractile responses, intracellular Ca(2+) ([Ca(2+)](i)), Rho-kinase translocation, and phosphorylation of the regulatory subunit of myosin phosphatase (MYPT-1) and of myosin light chain...
Rajendra Patel et al.
Journal of vascular surgery, 43(2), 364-371 (2006-02-16)
Smooth muscle cells (SMCs) from prosthetic vascular grafts secrete higher levels of collagen than aortic SMCs under basal conditions and during incubation with oxidized low-density lipoprotein. We postulated that reactive oxygen species (ROS) contributed to the observed difference. The objective...
Xiaojuan Xu et al.
Behavioral neuroscience, 123(3), 614-623 (2009-06-03)
Our previous study with N-methyl-D-aspartate (NMDA) receptor antagonist D-AP5 suggested that NMDA receptors were involved in learning but not memory consolidation of avoidance conditioning. The present study investigated whether nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) were involved in...
Xin-Yi Gu et al.
Regulatory peptides, 155(1-3), 115-120 (2009-02-28)
Dendroaspis natriuretic peptide (DNP), a newly-described natriuretic peptide, plays an inhibitory role in smooth muscle motility of the gastrointestinal tract. However, the effect of DNP on delayed rectifier potassium currents I(K(V)) is still unclear. In this study, we sought to...
Mingzhu Wu et al.
Plant molecular biology, 81(1-2), 27-40 (2012-10-24)
Here, α-Amy2/54 gene expression was used as a molecular probe to investigate the interrelationship among nitric oxide (NO), cyclic GMP (cGMP), and heme oxygenase-1 (HO-1) in GA-treated wheat aleurone layers. The inducible expressions of α-Amy2/54 and α-amylase activity were respectively...
Márcia Regina Ribeiro et al.
The Biological bulletin, 216(2), 138-148 (2009-04-16)
The cell signaling cascades that mediate pigment movements in crustacean chromatophores are not yet well established, although Ca(2+) and cyclic nucleotide second messengers are involved. Here, we examine the participation of cyclic guanosine monophosphate (cGMP) in pigment aggregation triggered by...
R Hernanz et al.
Methods and findings in experimental and clinical pharmacology, 21(4), 243-251 (1999-07-10)
Bradykinin (BK) induced endothelium- and concentration-dependent relaxations in segments of porcine posterior descending coronary arteries submaximally precontracted with the thromboxane A2 mimetic, U-46619. The effects of BK were reduced by L-NG-monomethylarginine (L-NMMA) and 6-anilinoquinoline-5,8-quinone (LY-83583), respective inhibitors of nitric oxide...
I V Strielkov et al.
Vascular pharmacology, 58(4), 292-298 (2013-02-19)
The aim of the study was to investigate the role of phosphatidylcholine-specific phospholipase C (PC-PLC) in hypoxic pulmonary vasoconstriction (HPV) and elucidate its possible interactions within HPV mechanism. Inhibition of PC-PLC with D609 (30μM) resulted in partial reduction of the...
Jih Pyang Wang et al.
Biochemical pharmacology, 63(4), 577-585 (2002-05-07)
3-(5'-Hydroxymethyl-2'-furyl)-1-benzyl indazole (YC-1), a soluble guanylyl cyclase (sGC) activator, inhibited formyl-methionyl-leucyl-phenylalanine (fMLP)-induced superoxide anion (O(2)*(-)) generation and O(2) consumption in rat neutrophils (IC(50) values of 12.7+/-3.1 and 17.7+/-6.9 microM, respectively). Inhibition of O(2)*(-) generation by YC-1 was partially reversed by...
A Mülsch et al.
Naunyn-Schmiedeberg's archives of pharmacology, 340(1), 119-125 (1989-07-01)
We studied the effects and the mechanism of action of the cyclic GMP-lowering substance 6-anilino-5,8-quinolinedione (LY 83583) on cyclic GMP-mediated inhibition of platelet function. The activation of washed human platelets by thrombin was counteracted by 8-bromo-cyclic GMP and the direct...
Hong Wang et al.
American journal of physiology. Heart and circulatory physiology, 300(4), H1320-H1326 (2011-01-18)
Tubuloglomerular feedback (TGF) is a renal autoregulatory mechanism that constricts the afferent arteriole in response to increases in distal NaCl. Heme oxygenases (HO-1 and HO-2) release carbon monoxide (CO) and biliverdin, which may help control renal function. We showed in...
Tomoya Kudo et al.
Mediators of inflammation, 2009, 850940-850940 (2009-11-19)
Cathepsin G is a serine protease secreted by activated neutrophils that play a role in the inflammatory response. Because neutrophils are known to be invading leukocytes in various tumors, their products may influence the characteristics of tumor cells such as...
Chang Beom Lee et al.
Autonomic neuroscience : basic & clinical, 146(1-2), 70-75 (2009-01-14)
In this experiment, we examined the influence of the posterior hypothalamic adenosine A(2A) receptors on the central cardiovascular regulation of blood pressure (BP) and heart rate (HR). Posterior hypothalamic injection of drugs was performed in anesthetized, artificially ventilated male Sprague-Dawley...
Kayoko Tsuda et al.
Biochemical and biophysical research communications, 409(3), 418-423 (2011-05-19)
Candida albicans is the most common and virulent fungus causing candidiasis in various parts of the body and can be lethal to immunocompromised patients. All currently known antifungal therapies are drugs which cause serious side effects in the host. An...
B A Summers et al.
Journal of neurophysiology, 81(4), 1449-1457 (1999-04-14)
Previous studies have shown that nitric oxide (NO) inhibits carotid body sensory activity. To begin to understand the cellular mechanisms associated with the actions of NO in the carotid body, we monitored the effects of NO donors on the macroscopic...
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