Abstract:
PURPOSE:The use of dendrimers for biomedical applications has emerged with promising results. 2G-NN16 is a carbosilane dendrimer with sixteen positive charges per molecule tested to be capable to bind and release antisense oligonucleotides (ODNs) and small interference RNA (siRNA) in vitro. In spite of low cytotoxicity observed for these dendrimers, little is known about cellular changes they produce in cells in general and in immune cells in particular. MATERIALS AND METHODS:Genomic technologies allow us to identify global gene expression profile changes in macrophages exposed to a non-toxic concentration (5 microM) of 2G-NN16, alone or complexed with a random siRNA (dendriplex). Results were confirmed by quantitative real-time RT-PCR. RESULTS:Exposing macrophages to this dendrimer or dendriplex causes multiple gene expression changes, but no specific action of random siRNA was detected. Pathway analysis of differentially expressed genes shows the altered functions to be immune response, proliferation and transcription regulation. Interleukin 17F (IL17F) was the most regulated gene. CONCLUSIONS:Global gene expression profiles are a highly sensitive method to measure the toxicity degree of a gene delivery vehicle. The strong repression of IL17F, IL23R and IL23A, all of which are involved in autoimmune disease, by this particular dendrimer suggests a potential pharmacological application.
journal_name
Pharm Resjournal_title
Pharmaceutical researchauthors
Gras R,Almonacid L,Ortega P,Serramia MJ,Gomez R,de la Mata FJ,Lopez-Fernandez LA,Muñoz-Fernandez MAdoi
10.1007/s11095-008-9776-zsubject
Has Abstractpub_date
2009-03-01 00:00:00pages
577-86issue
3eissn
0724-8741issn
1573-904Xjournal_volume
26pub_type
杂志文章abstract::Physiologically-based pharmacokinetic (PBPK) models explicitly incorporate tissue-specific blood flows, partition coefficients, and metabolic processes. Since PBPK models are derived using physiologic parameters and interactions of the compound with tissue components, these models are considered to be "bottom up" as o...
journal_title:Pharmaceutical research
pub_type: 杂志文章,评审
doi:10.1007/s11095-016-2089-8
更新日期:2017-03-01 00:00:00
abstract::To clarify the mechanism by which basic drugs accumulate in the lung, the binding selectivity of drugs to different subcellular structures of the perfused rat lung was examined. Imipramine, quinine, and metoclopramide were used as examples of basic drugs. The accumulation of basic drugs was highest in the mitochondria...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1016481911538
更新日期:1987-02-01 00:00:00
abstract:PURPOSE:Study on curcumin dissolved in natural deep eutectic solvents (NADES) was aimed at exploiting their beneficial properties as drug carriers. METHODS:The concentration of dissolved curcumin in NADES was measured. Simulated gastrointestinal fluids were used to determine the concentration of curcumin and quantum c...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-019-2643-2
更新日期:2019-06-03 00:00:00
abstract:PURPOSE:Previously, we have shown that complexes of plasmid DNA with the biodegradable polymer poly(2-dimethylamino ethylamino)phosphazene (p(DMAEA)-ppz) mediated tumor selective gene expression after intravenous administration in mice. In this study, we investigated the effect of p(DMAEA)-ppz molecular weight on both ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-007-9299-z
更新日期:2007-08-01 00:00:00
abstract:PURPOSE:The study was performed for clarifying the mechanism of interaction between indoxyl sulfate (IS), a typical uremic toxin bound to site II, and site I-ligands when bound to human serum albumin (HSA). The effect of the N to B transition on the interactions was also examined. METHODS:Quantitative investigation of...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1011014629551
更新日期:2001-04-01 00:00:00
abstract::Azo polymers based upon 2-hydroxyethyl methacrylate, methyl methacrylate, and methacrylic acid, and containing N,N'-bis [(methacryloyloxyethyl)oxy(carbonylamino)]azobenzene as azo aromatic agent were evaluated in vivo as coating for colon-specific drug delivery. The gastrointestinal absorption of theophylline from cap...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1016283027139
更新日期:1995-02-01 00:00:00
abstract::The binding of 1-anilino-8-naphthalenesulfonate (ANS) to bovine serum albumin (BSA), human serum albumin (HSA), and human plasma has been studied by potentiometric titration utilizing a laboratory constructed ion selective electrode (ISE) of ANS. Three classes of ANS binding sites were found on BSA, HSA, and plasma at...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015855613083
更新日期:1991-07-01 00:00:00
abstract:PURPOSE:Gastroduodenal and intestinal permeability were compared after single doses of sustained release and regular release flurbiprofen in the rat to assess possible site-specific formulation-dependent toxicity. METHODS:Pharmacokinetics was assessed and gastrointestinal permeability was evaluated using sucrose and 5...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1012134503107
更新日期:1997-11-01 00:00:00
abstract:PURPOSE:To characterize the distribution of water among various components in a powder blend using solid-state NMR spectroscopy. METHODS:Water sorption behavior of theophylline anhydrate and excipients was determined by dynamic vapor sorption (DVS) and Karl Fischer Titration (KFT) after storing them in humidity chambe...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-016-1972-7
更新日期:2016-10-01 00:00:00
abstract::Hyaluronan (HA: hyaluronic acid) is produced in the interstitium and reaches the blood circulation through the lymph. It is rapidly eliminated by means of specific receptors on liver endothelium. The elimination characteristics of intravenously administered HA were studied in 10 conscious sheep at the normal plasma HA...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015982204926
更新日期:1989-08-01 00:00:00
abstract::The effect of the penetration enhancers Azone, oleic acid, 1-dodecanol, dodecyl N,N-dimethylaminoacetate (DDAA), and dodecyl N,N-dimethylaminoisopropionate (DDAIP) on epithelial membrane lipids was examined using human buccal cell membranes as a model for epithelial lipid bilayer. Buccal epithelial cells (BEC) were la...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018919811227
更新日期:1994-02-01 00:00:00
abstract:PURPOSE:The aim was to investigate the influence of polymer content and molecular weight on the morphology and heat- and moisture-induced transformations, as indicators of stability, of spray-dried composite particles of amorphous lactose and poly(vinylpyrrolidone) (PVP). METHODS:Amorphous lactose and composite partic...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1024462306941
更新日期:2003-07-01 00:00:00
abstract::Over the last few decades, intraperitoneal (IP) local drug delivery, providing high drug concentrations with prolonged retention in the peritoneal cavity, has opened a new horizon for the management of life-threatening peritoneal disorders, such as peritoneal carcinomatosis (PC). However, clinical translation of this ...
journal_title:Pharmaceutical research
pub_type: 杂志文章,评审
doi:10.1007/s11095-020-02818-8
更新日期:2020-06-03 00:00:00
abstract::Intranasal route continues to be one of the main focuses of drug delivery research. Although it is generally perceived that the nasal route could avoid the first-pass metabolism in liver and gastrointestinal tract, the role of metabolic conversions in systemic and brain-targeted deliveries of the parent compounds and ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-010-0127-5
更新日期:2010-07-01 00:00:00
abstract::A method for determination of absorption rate and bioavailability was developed to reduce the influence of intraindividual variability and applied to the absolute intraperitoneal availability of lithium in the rat. In this method the test and the reference doses are given with a few hours' interval, and the resulting ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1015939917646
更新日期:1989-09-01 00:00:00
abstract:PURPOSE:Pancreatic cancer remains the fourth most common cause of cancer-related death in the United States. Therefore, novel strategies for the prevention and/or treatment are urgently needed. Genistein has been found to be responsible for lowering the rate of pancreatic cancer. However, the molecular mechanisms by wh...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-010-0106-x
更新日期:2010-06-01 00:00:00
abstract:PURPOSE:To determine whether LHRH-receptor is expressed in Calu-3, a human bronchial epithelial cell line, and to further determine whether this receptor plays a role in the transport of deslorelin, an LHRH agonist. METHODS:Using cultured monolayers of Calu-3 grown at air-interface, the presence and localization of LH...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/b:pham.0000029294.70707.74
更新日期:2004-06-01 00:00:00
abstract::The effects of process and storage conditions of solid-state emulsions were studied. Oil-in-water emulsions may be prepared from solid state emulsions by adding an aqueous phase to the solid. Solid-state emulsions are prepared by processing an oil phase and an aqueous solution of matrix material via a solvent removal ...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018983227234
更新日期:1993-07-01 00:00:00
abstract::In this study the intestinal degradation and absorption of a synthetic pentapeptide, metkephamid, were investigated in the rat by determination of its wall permeabilities in the small and large intestine and the extent and mechanism of its intestinal degradation. The peptide was metabolized in the gut wall through con...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018962415287
更新日期:1994-04-01 00:00:00
abstract:PURPOSE:The encapsulation of pancreatic β-cells in biocompatible matrix has generated great interest in diabetes treatment. Our work has shown improved microcapsules when incorporating the bile acid ursodeoxycholic acid (UDCA), in terms of morphology and cell viability although cell survival remained low. Thus, the stu...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-016-1863-y
更新日期:2016-05-01 00:00:00
abstract::Pediatric brain tumors are most common cancers in childhood and among the leading causes of death in children. Chemotherapy has been used as adjuvant (i.e. after) or neoadjuvant (i.e. before) therapy to surgery and radiotherapy for the management of pediatric brain tumors for more than four decades and gained more att...
journal_title:Pharmaceutical research
pub_type: 杂志文章,评审
doi:10.1007/s11095-013-1196-z
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:The aim of this work is to design new chitosan conjugates able to self-organize in aqueous solution in the form of micrometer-size platelets. When mixed with amphotericin B deoxycholate (AmB-DOC), micro-platelets act as a drug booster allowing further improvement in AmB-DOC anti-Candida albicans activity. METH...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-017-2117-3
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:To evaluate the mechanism of renal transport of quinolone antibacterial drugs, we examined the interaction of levofloxacin with p-aminohippurate (PAH) transport systems and the transport of levofloxacin in renal epithelial cells. METHODS:Transport of [14C]PAH or [14C]levofloxacin was measured using OK cell mon...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1011012822437
更新日期:2001-05-01 00:00:00
abstract:PURPOSE:There is evidence that cholesterol affects the ATPase and transport functions of P-glycoprotein (P-gp). To study the influence of cholesterol on P-gp in a well defined lipid environment, we reconstituted P-gp in egg phosphatidylcholine (PhC) and PhC/cholesterol proteoliposomes with negligible residual amounts o...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-007-9326-0
更新日期:2007-11-01 00:00:00
abstract::The effect of buprenorphine on bremazocine-induced diuresis was tested in the rat to determine the nature of buprenorphine's action at the ϰ opioid receptor. Both morphine-tolerant and naive rats were used to account for possible antidiuretic effects of buprenorphine at the µ site. Separate experiments established tha...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/A:1016340106299
更新日期:1985-07-01 00:00:00
abstract:PURPOSE:A Selegiline Transdermal System (STS) is under development for indications which may not be optimally or safely treated with oral selegiline. Studies were conducted to evaluate the in vitro penetration and skin metabolism of selegiline in order to better understand the toxicological findings and the observed pl...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1012051300130
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:Monocarboxylate transporter (MCT) inhibition represents a potential treatment strategy for γ-hydroxybutyric acid (GHB) overdose by blocking its renal reabsorption in the kidney. This study further evaluated the effects of a novel, highly potent MCT inhibitor, AR-C155858, on GHB toxicokinetics/toxicodynamics (TK...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-014-1583-0
更新日期:2015-06-01 00:00:00
abstract:PURPOSE:Radial basis function artificial neural networks and theoretical descriptors were used to develop a quantitative structure-pharmacokinetic relationship for structurally diverse drug compounds. METHODS:Human bioavailability values were taken from the literature and descriptors were generated from the drug struc...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/b:pham.0000012154.09631.26
更新日期:2004-01-01 00:00:00
abstract:PURPOSE:To employ in vitro experiments combined with computational fluid dynamics (CFD) analysis to determine which aerodynamic factors were most responsible for deaggregating carrier-free powders to form micrometer and submicrometer aerosols from a capsule-based platform. METHODS:Eight airflow passages were evaluated...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-013-1001-z
更新日期:2013-06-01 00:00:00
abstract:PURPOSE:Covalent binding between N-acetyl-L-cysteine (NAC) and albumin was evaluated kinetically by conducting in vitro experiments. METHOD:After 14C-NAC was incubated with human or rat serum, the solution was analyzed by anion-exchange HPLC. The albumin-bound 14C-NAC was quantified by measuring the radioactivity in t...
journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1020749211745
更新日期:2002-11-01 00:00:00