Abstract：
:1 Magnolol, an active component isolated from the root and stem bark of Magnolia officinalis, has been reported to exhibit antitumour effects, but little is known about its molecular mechanisms of action. 2 Magnolol inhibited proliferation of human lung squamous carcinoma CH27 cells at low concentrations (10-40 microM), and induced apoptosis at high concentrations (80-100 microM). 3 Treatment with 80 microM magnolol significantly increased the expression of Bad and Bcl-X(S) proteins, whereas it decreased the expression of Bcl-X(L). Overexpression of Bcl-2 protected CH27 cells against magnolol-triggered apoptosis. 4 Magnolol treatment resulted in accumulation of cytosolic cytochrome c and activation of caspase-9 and downstream caspases (caspase-3 and -6). Pretreatment with z-VAD-fmk markedly inhibited magnolol-induced cell death, but did not prevent cytosolic cytochrome c accumulation. 5 Magnolol induced a modest and persistent JNK activation and ERK inactivation in CH27 cells without evident changes in the protein levels. The responsiveness of JNK and ERK to magnolol suggests the involvement of these kinases in the initiation of the apoptosis process. 6 These results indicate that regulation of the Bcl-2 family, accumulation of cytosolic cytochrome c, and activation of caspase-9 and caspase-3 may be the effector mechanisms of magnolol-induced apoptosis.
journal_name
Br J Pharmacoljournal_title
British journal of pharmacologyauthors
Yang SE,Hsieh MT,Tsai TH,Hsu SLdoi
10.1038/sj.bjp.0705024subject
Has Abstractpub_date
2003-01-01 00:00:00pages
193-201issue
1eissn
0007-1188issn
1476-5381journal_volume
138pub_type
杂志文章abstract：BACKGROUND AND PURPOSE:There is major evidence for the strong bi-directional interrelation of parenchymal cell apoptosis and leukocyte accumulation and inflammation in acute liver injury. Therefore, the aim of this in vivo study was to investigate the anti-apoptotic and anti-inflammatory potential of antileukoproteinas...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0707230
更新日期：2007-06-01 00:00:00
abstract：:1 The tension developed in the guinea-pig cremaster was recorded during spontaneous activity and electrical stimulation. Spontaneous rhythmic contraction was observed in many preparations, particularly in the tip of the cremaster. These contractions were very slow, lasting about 20 s and occuring at about 2 min interv...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1975.tb07423.x
更新日期：1975-12-01 00:00:00
abstract：:1. Male rats treated with guanethidine 25 mg/kg daily for eight weeks had no demonstrable ejaculatory function immediately after cessation of treatment. Four weeks later, ejaculatory function had returned in two-thirds of the males, and after eight weeks, all males were able to deposit sperm in the vagina. However, fe...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1973.tb08219.x
更新日期：1973-05-01 00:00:00
abstract：:1. The effects of 5-hydroxytryptamine (5-HT) uptake inhibitors, agonists and antagonists have been evaluated on mouse marble-burying behaviour, a putative test for anxiolytic agents. The high levels of locomotor activity occurring on first exposure to a circular runway (runway were used as a separate test of non-speci...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1991.tb12392.x
更新日期：1991-09-01 00:00:00
abstract：:Endothelin constricted human isolated cerebral arteries in a concentration-dependent manner. The maximal tension developed, as well as EC50 values were similar in arteries with and without endothelium. Removal of extracellular calcium or addition of the calcium antagonist nicardipine (10(-6)M), attenuated but did not ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1990.tb12945.x
更新日期：1990-03-01 00:00:00
abstract：:1. We investigated how microsomal cytochrome P450 mono-oxygenase (Cyp450 MO) is regulated in cultured porcine aortic endothelial cells. The hypothesis that a Cyp450 MO-derived metabolite links Ca2+ store depletion and Ca2+ entry was studied further. 2. Microsomal Cyp450 MO was monitored fluorometrically by dealkylatio...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701304
更新日期：1997-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Volume-regulated anion channels (VRACs) play an important role in cell-volume regulation. alpha(1)-Adrenoceptor stimulation by phenylephrine (PE) suppressed the hypotonic activation of VRAC current in mouse ventricular cells and regulatory volume decrease (RVD) was also absent in PE-treated cells...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.2010.00896.x
更新日期：2010-09-01 00:00:00
abstract：:1. The distribution of sympathetic adrenergic nerves on the rat middle cerebral artery and on the arterioles which originated from it was determined by use of gloxylic histochemistry. 2. Whereas the middle cerebral artery and proximal arterioles arising from this artery received a sympathetic innervation, the distal r...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1989.tb11884.x
更新日期：1989-04-01 00:00:00
abstract：:1. Pressor responses to sympathetic outflow stimulation, noradrenaline and angiotensin have been recorded in pithed rats.2. Disulfiram (50 mg/kg) and sodium diethyldithiocarbamate (DDC) (5-100 mg/kg) both caused an initial increase in the pressor response to all three procedures followed by a selective inhibition of t...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1972.tb07255.x
更新日期：1972-02-01 00:00:00
abstract：:1 The rates at which tubocurarine associates with, and dissociates from, the nicotinic receptor, while exerting its classical competitive effect, are still in doubt. We have investigated this problem by observing the effect of low concentrations of tubocurarine on the re-equilibration rate, following a step change in ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1982.tb08759.x
更新日期：1982-01-01 00:00:00
abstract：:1. The effects of palytoxin (PTX) isolated from Palythoa tubercurosa were tested on the isolated intra-arterially perfused spinal cord of the frog. The resting and evoked potentials were recorded by means of a sucrose-gap technique. 2. PTX caused a marked depolarization of both ventral and dorsal roots. The minimum ef...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1980.tb10975.x
更新日期：1980-01-01 00:00:00
abstract：:The effects of local perivascular application of dopamine to rat pial arterioles. (20-40 micrometer i.d.) were examined in situ, at the microcirculatory level, by use of a high-resolution closed circuit television microscope recording system. Local application of very low, physiological doses (1 to 10 pg) of dopamine ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1980.tb07900.x
更新日期：1980-08-01 00:00:00
abstract：LINKED ARTICLES:This article is part of a themed section on Recent Progress in the Understanding of Relaxin Family Peptides and their Receptors. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.10/issuetoc. ...
journal_title：British journal of pharmacology
pub_type： 社论
doi：10.1111/bph.13778
更新日期：2017-05-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Exercise is known to improve cognitive function, but the exact synaptic and cellular mechanisms remain unclear. We investigated the potential role of the serotonin (5-HT) transporter (SERT) in mediating these effects. EXPERIMENTAL APPROACH:Hippocampal long-term potentiation (LTP) and neurogenesi...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.14760
更新日期：2019-09-01 00:00:00
abstract：:1. The effects of the intravenous injection of Kö 1173, a new anticonvulsant drug, phenytoin and procainamide were studied on three types of cardiac arrhythmia in dogs.2. Ventricular ectopic beats produced by intravenous injection of adrenaline in anaesthetized dogs respired with halothane were abolished by Kö 1173, 0...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1972.tb08114.x
更新日期：1972-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Necroptosis is a form of programmed, caspase-independent, cell death, mediated by receptor-interacting protein kinases, RIPK1 and RIPK3, and the mixed lineage kinase domain-like (MLKL). Necroptosis contributes to the pathophysiology of various inflammatory, infectious, and degenerative diseases. ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.14653
更新日期：2019-06-01 00:00:00
abstract：:1. Rat cultured aortic vascular smooth muscle cells (VSMC) express both cyclic GMP-inhibited cyclic AMP phosphodiesterase (PDE3) and Ro 20-1724-inhibited cyclic AMP phosphodiesterase (PDE4) activities. By utilizing either cilostamide, a PDE3-selective inhibitor, or Ro 20-1724, a PDE4-selective inhibitor, PDE3 and PDE4...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701376
更新日期：1997-09-01 00:00:00
abstract：BACKGROUND:Macrophage elastase (MMP-12) is involved in the inflammatory process of chronic obstructive pulmonary disease (COPD). The aim of this study was to investigate in mice the effect of MMP-12 inhibition on the inflammatory process induced by cigarette smoke (CS) or by lipopolysaccharide (LPS) exposure of the air...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/bjp.2008.180
更新日期：2008-07-01 00:00:00
abstract：:1 Eleven analogues of sodium cromoglycate have been tested for their ability to suppress histamine release induced by anti-IgE from passively sensitized human lung fragments in vitro. 2 With the exception of WY 16922, which released histamine at high concentrations, all inhibited histamine release in a linear dose-rel...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1980.tb07937.x
更新日期：1980-10-01 00:00:00
abstract：:1. Electroconvulsive treatment (ECT) of rabbits produced ocular inflammation consisting of conjunctival hyperaemia, miosis and protein extravasation into the aqueous humour, reflected by the so-called aqueous flare response (AFR): the maximal reduction in pupil size was 3.8 +/- 0.1 mm (s.e. of mean, n = 16) while the ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701083
更新日期：1997-04-01 00:00:00
abstract：:ZK110841 and AH6809, an agonist and an antagonist of prostaglandin DP-receptors on human platelets, were evaluated with a fibroblastic cell line from bovine embryonic trachea (EBTr) which specifically responds to prostaglandin D2 (PGD2). ZK110841, equipotent to PGD2, elevated the adenosine 3':5'-cyclic monophosphate (...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1990.tb14645.x
更新日期：1990-01-01 00:00:00
abstract：:Ouabain was administered at a loading dose of 3 mug/kg followed by an infusion at a rate of 1 mug/kg-1 min-1 in order to produce severe dysrhythmia in dogs within 60 minutes. Similarly, digitoxin at a loading dose of 9 mug/kg followed by an infusion at a rate of 3 mug kg-1 min-1 was administered to compare its effect ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1977.tb06982.x
更新日期：1977-01-01 00:00:00
abstract：:1. Contraction of the rabbit isolated saphenous vein is mediated by a heterogeneous endothelin (ET) receptor population. This study has characterized these receptor subtypes by use of several pharmacologically distinct ET receptor agonists and antagonists. 2. ET-1, ET-3, sarafotoxin S6c (STXc) and [Ala3,11]ET-1 produc...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1995.tb14936.x
更新日期：1995-04-01 00:00:00
abstract：:1. The binding of 2-[125I]-iodomelatonin to chicken brain membranes, and the inhibition of binding by melatonin, N-acetyltryptamine and luzindole, were examined at temperatures between 4 degrees C and 37 degrees C. 2. At all temperatures studied, the binding affinity (Kd or Ki) for 2-[125I]-iodomelatonin, melatonin (b...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1994.tb14059.x
更新日期：1994-01-01 00:00:00
abstract：:1. Arachidonic acid caused larger contractions to indomethacin-tested guinea-pig trachea than in control tracheae. 2. No change in contractions was obtained in tracheae treated with 5,8, 11, 14, eicosatetraynoic acid (ETYA 10 micro M). 3. ETYA (100 micro M) blocked the effect of indomethacin on arachidonic acid-induce...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1982.tb09250.x
更新日期：1982-08-01 00:00:00
abstract：:Bradykinin, angiotensin II, arginine vasopressin (AVP) or des-amino-D-arginine vasopressin (DDAVP) were administered by intravenous infusion to 10 healthy men. The concentration of 6-oxo-prostaglandin F1 alpha (6-oxo-PGF1 alpha), the stable hydrolysis product of prostacyclin (PGI2), was measured in plasma using gas ch...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1986.tb10177.x
更新日期：1986-01-01 00:00:00
abstract：:1. The effects of flecainide alone, mexiletine alone and their combination at the Na+ channel level were studied in guinea-pig papillary muscles. The maximum upstroke velocity (Vmax) was used as an indirect index of the magnitude of the fast inward Na+ current (INa). 2. In muscles driven at 0.02 Hz, neither mexiletine...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1991.tb09803.x
更新日期：1991-06-01 00:00:00
abstract：:1. Protein phosphorylation is involved in the induction of nitric oxide synthase II (NOS II, iNOS) in several types of animal cells. Here we have investigated the possible involvement of major protein kinases in the induction of NOS II expression in human DLD-1 cells. 2. In DLD-1 cells, interferon--gamma alone induced...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701782
更新日期：1998-04-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Fatty acid amide hydrolase (FAAH) inhibitors are postulated to possess anti-hypertensive potential, because their acute injection decreases BP in spontaneously hypertensive rats (SHR), partly through normalization of cardiac contractile function. Here, we examined whether the potential hypotensiv...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.13830
更新日期：2017-07-01 00:00:00
abstract：:1. Perivascular nerves of the sheep middle cerebral artery show immunoreactivity for both vasoactive intestinal polypeptide (VIP) and calcitonin gene-related peptide (CGRP). 2. Rings of endothelium-denuded sheep middle cerebral artery precontracted with 5-hydroxytryptamine were relaxed by CGRP (maximum relaxation = 87...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1991.tb12213.x
更新日期：1991-03-01 00:00:00
