Abstract:
:1. At any one instant, most receptors are now recognized to be able to stimulate multiple signal transduction pathways in a cell when activated by an appropriate hormone. These different signalling pathways appear to allow for distinct cellular responses, such as cell proliferation, differentiation, and shape change. 2. In addition, many different types of cell will possess the same type of receptor. Therefore, for a hormone to be able to transmit differential signals to the various cell types able to respond to it, cells must discriminate the stimulus at some point. Such discrimination would seem to be an absolute requirement to allow a tissue-specific response to an identical initial stimulus. In theory, this specificity could occur at many points in the receptor signal transduction cascade, including cytosolic receptor coupling systems and tissue/cell-specific responsive genes. 3. The present paper summarizes our work and that of others which has determined some of the coupling systems of G-protein-coupled receptors and tyrosine kinase receptors and how these systems may be interacting. 4. In addition to these theoretical considerations, a potential therapeutic strategy underlies the ability of receptors to couple to more than one signal transduction system. If a response to a hormone were, for example, either cell proliferation or cell morphological change or differentiation and separate receptor-coupled signalling systems were responsible for these effects, pharmacological intervention may allow the transfer from one signalling system to another. If such a change allowed a permanent change to the differentiated phenotype, this could potentially form the basis of a signal-based cancer therapy.
journal_name
Clin Exp Pharmacol Physioljournal_title
Clinical and experimental pharmacology & physiologyauthors
Crouch MF,Frew IJ,Simson L,Davy DAdoi
10.1111/j.1440-1681.1997.tb02104.xsubject
Has Abstractpub_date
1997-08-01 00:00:00pages
632-8issue
8eissn
0305-1870issn
1440-1681journal_volume
24pub_type
杂志文章,评审abstract::Cardiotoxin (CTX) III, a basic polypeptide with 60 amino acid residues isolated from Naja naja atra venom, has been reported to have anticancer activity. In the present study, we investigated the mechanisms underlying the anticancer activity of CTX III in human leukaemia (HL-60 cells). Cardiotoxin III activated the en...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2008.04968.x
更新日期:2008-09-01 00:00:00
abstract::1. Epidermal growth factor is a potent mitogen that causes natriuresis, diuresis and inhibition of arginine vasopressin-induced water reabsorption. 2. The aim of this study was to determine any interaction between epidermal growth factor and the V1 (vascular) and/or V2 (antidiuretic) arginine vasopressin receptor subt...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1994.tb02506.x
更新日期:1994-03-01 00:00:00
abstract::Hypertension leads to electrophysiological changes in the heart. Chronic exercise induced by a treadmill-running programme (TRP) is considered a potential non-pharmacological treatment for hypertension and may have implications in heart remodelling. However, it is not known whether the TRP is able to improve the elect...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2011.05669.x
更新日期:2012-02-01 00:00:00
abstract::1. Although measuring the rate of firing of multi-unit muscle sympathetic nerve activity (MSNA) has provided important information in many aspects of cardiovascular medicine, measuring single-unit vasoconstrictor activity provides a better understanding of the possible mechanisms underlying disturbed sympathetic nervo...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2008.04905.x
更新日期:2008-04-01 00:00:00
abstract::Nucleocytoplasmic protein shuttling is integral to the transmission of signals between the nucleus and the cytoplasm. The nuclear/cytoplasmic distribution of proteins of interest can be determined via fluorescence microscopy, following labelling of the target protein with fluorophore-conjugated antibodies (immunofluor...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/1440-1681.12969
更新日期:2018-10-01 00:00:00
abstract::1. The ulcerogenesis of gastric haemorrhagic damage during sepsis is unclear. The present study first proposes that gastric haemorrhagic ulcer is modulated by mucosal glutathione, histamine and oxyradicals in lipopolysaccharide (LPS)-induced sepsis in rats. The protective effects of several drugs on the ulcerogenic pa...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2000.03241.x
更新日期:2000-04-01 00:00:00
abstract::1. Neuropeptide Y (NPY) is colocalized with catecholamines in central regions involved in blood pressure regulation and exerts depressor responses in the nucleus tractus solitarius (NTS). Ageing is accompanied by a decline in baroreflex function and a reduction in NPY concentrations in some brain areas. The present st...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1997.tb01801.x
更新日期:1997-02-01 00:00:00
abstract::1. Phytoncides are volatile substances released mainly from trees. We studied whether phytoncides can reduce stress responses in stroke-prone spontaneously hypertensive rats (SHRSP). 2. Under the restraint stress, SHRSP exposed to phytoncides showed lower blood pressure than those without the exposure (186.8 +/- 3.9 v...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2004.04102.x
更新日期:2004-12-01 00:00:00
abstract::1. This study aimed to characterize the effect of nicorandil (NC) on myocardial stunning and the role of ATP-sensitive K+ (KATP) channel opening property in its cardioprotective action. 2. In open-chest anaesthetized rabbits, myocardial stunning was induced by 10 min of coronary occlusion followed by 30 min of reperfu...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1993.tb01746.x
更新日期:1993-09-01 00:00:00
abstract::1. The reproducibility of blood volume measurements, using [51Cr]-labelled red blood cells (RBC) was tested in three lambs, 79-89 days of age, and the accuracy was tested in eight lambs, 83 +/- 0.4 days of age, in which blood volume was measured simultaneously by [51Cr]-RBC and [125I]-gamma globulin plus haematocrit (...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1994.tb02557.x
更新日期:1994-07-01 00:00:00
abstract::1. The aim of the present study was to examine the effect of bacterial lipopolysaccharide (LPS) on the disposition of an organic anion transporting polypeptide and P-glycoprotein substrate in the rat isolated perfused liver. 2. Male Sprague-Dawley rats were divided into four groups. Three of the groups received 1, 2.5...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2006.04419.x
更新日期:2006-08-01 00:00:00
abstract::1. We tested the effects of intravenous infusions of angiotensin II (AngII; 300 ng/kg per min) and the vasopressin V1 receptor agonist [Phe2,Ile3,Orn8]-vasopressin (30 ng/kg per min) on regional kidney perfusion in an extracorporeal circuit model in anaesthetized rabbits in which renal artery pressure (RAP) can be set...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.2000.03377.x
更新日期:2000-12-01 00:00:00
abstract::1. This study was designed to test the haemodynamic and renal effects in sheep of dihydrocyclosporin D (dCyD), an immunosuppressant agent derived from the fungus Tolypocladium inflatum Gams. 2. dCyD was infused for 5 days at 12 mg/kg per day. Mean arterial pressure (MAP) was elevated after 24 h, but thereafter returne...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1988.tb01095.x
更新日期:1988-05-01 00:00:00
abstract::1. The effect of endothelin on phosphatidylinositol turnover in rat atria was investigated by measuring the generation of inositol phosphates following [3H]-inositol labelling. 2. In the presence of 10 mmol/L LiCl, endothelin caused dose-dependent increases in the accumulation of inositol mono, bis and trisphosphates ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1990.tb01320.x
更新日期:1990-04-01 00:00:00
abstract::1. In the present study, we used a low dose of propofol (5 mg/kg per h) to investigate its effects on the pro-inflammatory cytokines (tumour necrosis factor (TNF)-alpha, interleukin (IL)-1beta and IL-10) and changes in nitric oxide (NO) following lipopolysaccharide (LPS) for a period of 12 h in conscious rats. 2. Expe...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2005.04155.x
更新日期:2005-01-01 00:00:00
abstract::1. The distribution of binding sites for [125I]-labelled endothelin-1 ([125I]-ET-1) and [125I]-labelled sarafotoxin S6B ([125I]-SRT) was visualized in rat tissues using in vitro autoradiography. 2. A high density of endothelin-1 (ET-1) binding was found in the heart. In the kidney, ET-1 binding occurred in association...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1991.tb01485.x
更新日期:1991-07-01 00:00:00
abstract::1. Direct cortical stimulation of motor and sensory areas of the cortex in experimental animals and some neurosurgical patients has provided much useful physiological information. Some of the benefits of this approach can be provided in awake volunteer subjects using new techniques which activate the motor cortex thor...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.1996.tb01148.x
更新日期:1996-10-01 00:00:00
abstract::1. Poor perfusion of the kidneys and gut, and associated functional impairment, are major problems in the first days of life in very preterm infants. These complications can be associated with a substantial mortality and further problems such as reduced kidney growth and chronic renal problems in later childhood. 2. T...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2006.04364.x
更新日期:2006-04-01 00:00:00
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journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2007.04824.x
更新日期:2008-03-01 00:00:00
abstract::1. Plasma concentration and atrial content of atrial natriuretic factor (ANF) were measured in rats with chronic renal failure induced by subtotal nephrectomy. 2. Plasma ANF was higher, and atrial ANF content lower in rats with renal failure when compared with sham-operated controls. 3. Plasma renin activity (PRA) and...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1987.tb00384.x
更新日期:1987-03-01 00:00:00
abstract::1. It is a central thesis of this review that in clinical and experimental pharmacology and physiology the goal of statistical analysis should be to minimize the risk of making any false-positive inferences from the results of an experiment (experimentwise Type I error). 2. It is common in clinical and experimental ph...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 社论,评审
doi:10.1111/j.1440-1681.1991.tb01468.x
更新日期:1991-06-01 00:00:00
abstract::1. Following local vasoconstriction-inducing stimuli, such as the cold pressor test (CPT), significant changes occur in haemodynamics, with a rise in arterial blood pressure and heart rate (HR) due to the activation of the sympathetic nervous system. Among the compensatory mechanisms to local ischaemia, the endogenous...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1046/j.1440-1681.1999.03126.x
更新日期:1999-10-01 00:00:00
abstract::1. There is mounting evidence that a wide range of antidepressants share the common feature of increasing hippocampal neurogenesis. The specificity of this association has suggested that an ability to increase neurogenesis might be a useful paradigm to screen for compounds with antidepressant activity. 2. The hope of ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2007.04608.x
更新日期:2007-05-01 00:00:00
abstract::Rats were prepared with chronic cannulae in the carotid artery, jugular vein and urinary bladder; they were then kept 2 days to allow recovery from surgery. A steady-state continuous saline diuresis was established, then various anaesthetic agents were injected and changes in the urine flow, sodium and potassium excre...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1985.tb02311.x
更新日期:1985-03-01 00:00:00
abstract::The prostaglandin synthesis inhibitor diclofenac sodium has been compared with a placebo in the treatment of primary nocturnal enuresis in a double-blind crossover trial. Twenty patients were entered: 14 female, six male; age range 6-17 years. The results showed that diclofenac sodium was significantly more effective ...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1440-1681.1986.tb00327.x
更新日期:1986-02-01 00:00:00
abstract::Clinical studies showed that high doses of recombinant human erythropoietin (rHuEPO) used to correct anaemia in chronic kidney disease (CKD) hyporesponsive patients may lead to deleterious effects. The aim of this study was to analyze the effects of rHuEPO in doses usually used to correct CKD-anaemia (100, 200 IU/kg b...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.12541
更新日期:2016-03-01 00:00:00
abstract::1. The aim of the present study was to explore the effects of CPU0213, a dual endothelin ET(A)/ET(B) receptor antagonist, and nifedipine, a calcium antagonist, in relieving pulmonary hypertension (PH). Both endothelin receptor and calcium antagonists have been reported to be effective in alleviating the remodelling of...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.2008.05044.x
更新日期:2009-02-01 00:00:00
abstract::1. The Type 2C protein phosphatases (PP2C) represent a highly conserved gene family in the mammalian genome. Recent studies have revealed that PP2C isoforms possess unique patterns of tissue and subcellular distribution associated with diverse functionalities. 2. The functional importance of PP2C isoforms has been sho...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章,评审
doi:10.1111/j.1440-1681.2007.04843.x
更新日期:2008-02-01 00:00:00
abstract::Osteosarcoma is the most common non-hematological primary bony malignancy in children and young adults with tumor metastasis being a common event at diagnosis. Understanding the pathogenesis of metastatic osteosarcoma may help identify potential therapeutic targets. In this study, we found that the level of microRNA-6...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/1440-1681.13006
更新日期:2018-12-01 00:00:00
abstract::1. Mechanisms involved in the plasma extravasation observed following thermal injury of rat dorsal skin were investigated. 2. Heat applied to the dorsal skin of anaesthetized rats by a temperature-controlled skin heater (1 cm diameter) for 5 min induced temperature-dependent plasma protein extravasation at 48-48.5 deg...
journal_title:Clinical and experimental pharmacology & physiology
pub_type: 杂志文章
doi:10.1111/j.1440-1681.1997.tb02705.x
更新日期:1997-11-01 00:00:00