Abstract:
AIM:To investigate the effects of small interfering RNA of cyclooxygenase-2 (COX-2) on the proliferation and apoptosis of human multiple myeloma RPMI8226 cells and its relation with the Bcl-2 family in vitro. METHODS:Transcription and expression of COX-2 in human myeloma RPMI8226 cells were checked by RT-PCR and Western blot analysis, respectively. The COX-2 siRNA fragment targeting exon 5 of COX-2 gene was transfected into the cells with the Amaxa nucleofection technique. The inhibition of cell growth was detected by 3-(4,5-dimethyl-2- thiazolyl)-2,5-diphenyl-2H-tetrazolium (MTT) assay. Apoptosis was estimated by Annexin-V/ propidium iodide double-labeled cytometry and confirmed by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assay. Bcl-2 and Bax expression was evaluated by Western blot analysis. RESULTS:The COX-2 siRNA fragment could be successfully transfected into RPMI8226 cells, which resulted in the significant inhibition of transcription and expression of COX-2 in the myeloma cells. Proliferation of the transfected cells was inhibited and apoptosis was induced (6.52%+/-0.32%, 12.53%+/-2.52%, 24.39%+/-3.51% and 36.48%+/-4.96% for 0, 12, 24, and 48 h, respectively) in a time-dependent manner (P<0.01). However, the expression of Bcl-2 and Bax in the RPMI8226 cells had no significant changes after nucleofection. CONCLUSION:COX-2 siRNA transfection can suppress COX-2 expression in human myeloma RPMI8226 cells, which leads to growth inhibition and apoptosis independent of Bcl-2.
journal_name
Acta Pharmacol Sinjournal_title
Acta pharmacologica Sinicaauthors
Li QB,Chen ZC,You Y,Zou Pdoi
10.1111/j.1745-7254.2007.00550.xsubject
Has Abstractpub_date
2007-07-01 00:00:00pages
1031-6issue
7eissn
1671-4083issn
1745-7254journal_volume
28pub_type
杂志文章abstract:AIM:To investigate whether geniposide, an iridoid glucoside extracted from gardenia jasminoides ellis fruits, inhibits cell adhesion to human umbilical vein endothelial cells (HUVECs) induced by high glucose and its underlying mechanisms. METHODS:HUVECs were isolated from human umbilical cords and cultured. The adhesi...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2010.83
更新日期:2010-08-01 00:00:00
abstract:AIM:To explore the effects of glutamine on growth and apoptosis of hepatoma cells. METHODS:Mice inoculated with hepatoma cell (H22) suspension subcutaneously at right axilla were orally administered with glutamine (GLN) solution. Human hepatoma cell culture (SMMC-7721) was treated with different concentrations of GLN ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
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abstract:AIM:Gemcitabine has been increasingly prescribed for the treatment of gallbladder cancer. However, the response rate is low. The aim of this study is to determine whether icariin, a flavonoid isolated from Epimedi herba, could potentiate the antitumor activity of gemcitabine in gallbladder cancer. METHODS:Human gallbl...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2012.162
更新日期:2013-02-01 00:00:00
abstract:AIM:To examine if steroid-like compounds found in many Chinese medicinal products conventionally used for the promotion of blood circulation may act as active components via the same molecular mechanism triggered by cardiac glycosides, such as ouabain. METHODS:The inhibitory potency of ouabain and the identified stero...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2010.61
更新日期:2010-06-01 00:00:00
abstract::Fibronectin (FN) is a main component of extracellular matrix (ECM) in most adult tissues. Under pathological conditions, particularly inflammation, wound healing and tumors, an alternatively spliced exon extra domain A (EDA) is included in the FN protein (EDA+FN), which facilitates cellular proliferation, motility, an...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/s41401-018-0172-x
更新日期:2019-07-01 00:00:00
abstract::Natural compound valepotriate exhibits inhibitory activity against a number of cancers, but the effect of valepotriate against pancreatic cancer is unclear, and the structure-activity relationship of valepotriate has not been characterized. In this study, we performed a structure-based similarity search and found 16 h...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/s41401-019-0354-1
更新日期:2020-06-01 00:00:00
abstract::Recent evidence shows that dopamine D2-like receptor (D2DR) antagonists, such as trifluoperazine and thioridazine, are effective for cancer therapy and inhibition of cancer stem-like cells (CSCs). In this study, we investigated the anti-cancer effects of combination therapy of dexamethasone (DEX) and sulpiride (SUL), ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2017.24
更新日期:2017-09-01 00:00:00
abstract:AIM:To determine whether basophils expressed human leucocyte antigen (HLA) class II molecules. METHODS:Basophils in umbilical cord blood were separated and purified with methods of density gradient centrifugation and immunomagnetic microbeads. The isolated basophils were cultured in RPMI-1640 plus 10 % fetal calf seru...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract:AIM:To evaluate the pharmacokinetics of L-threonate after single or multiple oral administrations and its safety profile in healthy Chinese volunteers. METHODS:This was an open-label, single- and multiple-dose study. The subjects were assigned to receive a single dose, 675, 2025, or 4050 mg, of calcium L-threonate (n=...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2011.138
更新日期:2011-12-01 00:00:00
abstract:AIM:To evaluate single-dose and multiple-dose pharmacokinetics of cytotoxic T-lymphocyte-associated antigen 4 fusion protein (CTLA4Ig) in healthy volunteers and patients with rheumatoid arthritis (RA). METHODS:The clinical trials included two phase I open studies: study 1 was an open-label dose-escalation study in 27 ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2009.13
更新日期:2009-03-01 00:00:00
abstract:AIM:Benzothiophene compounds are selective estrogen receptor modulators (SERMs), which are recently found to activate antioxidant signaling. In this study the molecular mechanisms of antioxidant signaling activation by benzothiophene compound BC-1 were investigated. METHODS:HepG2 cells were stably transfected with ant...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2012.168
更新日期:2013-03-01 00:00:00
abstract:AIM:To study the expressions of vascular endothelial growth factor (VEG F), angiopoietin-1 (Ang-1), angiopoietin-2 (Ang-2), Tie-1, and Tie-2 in C57BL/6 mouse brain after permanent focal cerebral ischemia. METHODS:The mRNA levels of VEGF, Ang-1, Ang-2, Tie-1, and Tie-2 were measured by semiquantitative reverse transcri...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2002-05-01 00:00:00
abstract:AIM:Genetic variation in ALOX12, which encoded human 12-lipoxygenase, was found to be associated with fat mass in young Chinese men. The objective of this study was to investigate the relationship between single nucleotide polymorphisms (SNPs) and haplotypes in the ALOX15 gene and obesity-related phenotypes in Chinese ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2011.167
更新日期:2012-02-01 00:00:00
abstract:AIM:To discover novel cell division cycle 25 (CDC25) B inhibitors and elucidate the mechanisms of inhibition in cancer cells. METHODS:Cell growth inhibition was detected by MTT assay, the cell cycle was analyzed by flow cytometry, and protein expression and phosphorylation was examined by Western blot analysis. RESUL...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2009.131
更新日期:2009-09-01 00:00:00
abstract:AIM:To evaluation the doxorubicin (DOX)-loaded pH-sensitive polymeric micelle release from tumor blood vessels into tumor interstitium using an animal vessel visibility model, the so-called dorsal skin-fold window chamber model. METHODS:DOX-loaded pH-sensitive polyHis-b-PEG micelles and DOX-loaded pH-insensitive PLLA-...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2014.12
更新日期:2014-06-01 00:00:00
abstract::Recently, two different chemicals have been matched as ligands with the same G-protein-coupled receptor (GPCR). Double-pairing of OGR1 family GPCRs with proton and lysolipid raises several questions. First, whether both are the real ligands for the GPCRs. Second, whether modulation of a GPCR by two chemicals could be ...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2005.00237.x
更新日期:2005-12-01 00:00:00
abstract::Alzheimer's disease (AD), a progressive degenerative disorder, is characterized by the presence of amyloid deposits, neurofibrillary tangles and neuron loss. Emerging evidence indicates that antioxidants could be useful either for the prevention or treatment of AD. It has been shown that melatonin is a potent antioxid...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2006.00267.x
更新日期:2006-02-01 00:00:00
abstract::Severe acute pancreatitis (SAP) is a severe acute abdominal disease. Recent evidence shows that intestinal homeostasis is essential for the management of acute pancreatitis. Chitosan oligosaccharides (COS) possess antioxidant activity that are effective in treating various inflammatory diseases. In this study we explo...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/s41401-020-00581-5
更新日期:2021-01-25 00:00:00
abstract:AIM:To study and establish a proteome reference map and regulation network of neonatal rat cardiomyocyte. METHODS:Cultured cardiomyocytes of neonatal rats were used. All proteins expressed in the cardiomyocytes were separated and identified by two-dimensional polyacrylamide gel electrophoresis (2-DE) and matrix-assist...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1038/aps.2011.86
更新日期:2011-09-01 00:00:00
abstract:AIM:To study the effect of nociceptin (orphanin FQ), a newly discovered heptadecapeptide, on cholinergic constrictions in isolated trachea and bronchus of rat. METHODS:The electric field stimulation (EFS) induced a monophasic constriction, which was due to an activation of the cholinergic nerves. RESULTS:Nociceptin 0...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2000-10-01 00:00:00
abstract:AIM:To investigate the pharmacokinetic profile and tissue distribution of a novel phosphodiesterase type 5 inhibitor, 5-ethyl-2-{5-[4-(2-hydroxy-ethyl)-piperazine-1-sulfonyl]-2-propoxy-phenyl}-7-propyl-3,5-dihydro-pyrrolo(3,2-d)pyrimidin-4-one (SK-3530), in rats after administration of the (14)C-labeled compound. METH...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2007.00611.x
更新日期:2007-08-01 00:00:00
abstract:AIM:To evaluate retrospectively the association of cytochrome P450 3A (CYP3A) and ATP-binding cassette sub-family B member 1 (ABCB1) gene polymorphisms with the pharmacokinetics of cyclosporine A (CsA) in Chinese renal transplant patients. METHODS:One hundred and twenty-six renal transplant patients were recruited. Bl...
journal_title:Acta pharmacologica Sinica
pub_type: 临床试验,杂志文章
doi:10.1038/aps.2012.136
更新日期:2012-12-01 00:00:00
abstract::With the increasing incidence of drug-induced liver disease, attempts are being made to better understand the mechanisms behind these frequently life-endangering reactions. Analgesics and anti-inflammatory drugs are a major group exhibiting hepatotoxicity. We review research relating to these reactions, focusing on ul...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2006.00278.x
更新日期:2006-03-01 00:00:00
abstract::Wound healing impairment represents a particularly challenging clinical problem to which no efficacious treatment regimens currently exist. The factors ensuring appropriate intercellular communication during wound repair are not completely understood. Although protein-type mediators are well-established players in thi...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1111/j.1745-7254.2005.00058.x
更新日期:2005-03-01 00:00:00
abstract:AIM:To study in vitro release and in vivo effect of four different types of sustained-release naltrexone microspheres on morphine analgesia. METHODS:Release of naltrexone from four types of biodegradable microspheres was investigated by HPLC. Their antagonist effects on morphine analgesia were observed using mouse hot...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:
更新日期:2001-06-01 00:00:00
abstract:AIM:To explore the anticancer effects and the molecular mechanisms of gambogic acid (GA) on Jurkat cells. METHODS:Cell viability was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Annexin V-fluorescein-isothiocyanate/propidium iodide, DNA defragmentation, and comet assay were used to d...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2008.00762.x
更新日期:2008-03-01 00:00:00
abstract:AIM:To determine propofol concentration in the cerebral spinal fluid (CSF) of neurosurgical patients and carry out a preliminary population pharmacodynamic study. METHODS:Twenty-seven elective neurosurgical patients (12 men and 15 women) aged 17-74 years received propofol in a bolus dose of 2 mg/kg for 5 min and an in...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2006.00309.x
更新日期:2006-05-01 00:00:00
abstract::The revolutionary induced pluripotent stem cell (iPSC) technology provides a new path for cell replacement therapies and drug screening. Patient-specific iPSCs and subsequent differentiated cells manifesting disease phenotypes will finally position human disease pathology at the core of drug discovery. Cells used to t...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章,评审
doi:10.1038/aps.2013.21
更新日期:2013-06-01 00:00:00
abstract:AIM:Our previous study demonstrated an siRNA-mediated, allele-specific silencing of mutant genes that cause amyotrophic lateral sclerosis. To improve siRNA design for better therapeutic use of RNA interference, we systematically tested the base-pairing mismatch strategy in the design of asymmetric siRNA. METHODS:A nat...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2008.00740.x
更新日期:2008-02-01 00:00:00
abstract:AIM:Adenosine monophosphate-activated protein kinase (AMPK), a vital regulator of glucose metabolism, may affect insulin secretion in beta-cells. However, the role of AMPK in beta-cell lipotoxicity remains unclear. Fenofibrate has been reported to regulate lipid homeostasis and is involved in insulin secretion in pancr...
journal_title:Acta pharmacologica Sinica
pub_type: 杂志文章
doi:10.1111/j.1745-7254.2008.00717.x
更新日期:2008-04-01 00:00:00