Abstract:
:A number of studies have appeared recently on the underlying mechanisms of liposome-cell interactions under in vitro conditions, in which isolated cell populations or cell lines were used. However, our knowledge of how liposomes interact with cells and the parameters that influence this in vivo is limited. We will summarize and discuss the relevant studies on this matter in this article. In addition, researchers in this field have long been aware of the interaction of liposomes with blood (or serum/plasma) proteins in vivo and their potential role in the process of the clearance of liposomes from the circulation. Some of the 'opsonizing' proteins, such as complement components, immunoglobulins, which enhance the interactions of liposomes with 'phagocytic cells' have been identified. However, the issue of which types of opsonins determine the fate of liposomes in vivo and how liposomal physicochemical properties such as size, charge and fluidity play an important role in the process of liposome clearance is not clear. Our own observations of one of opsonins, complement component are reviewed herein. As opposed to the fate of conventional liposomes, we briefly touch on the interaction of surface-modified liposomes, which are designed to avoid interactions with blood proteins and/or cells (sterically stabilized liposomes, long-circulating liposomes) and to actively target specific cells or tissues (targeted liposomes: immunoliposomes). Blood proteins such as opsonins are not usually thought to play an important role in the clearance of such liposomes.
journal_name
Curr Drug Metabjournal_title
Current drug metabolismauthors
Ishida T,Harashima H,Kiwada Hdoi
10.2174/1389200013338306keywords:
subject
Has Abstractpub_date
2001-12-01 00:00:00pages
397-409issue
4eissn
1389-2002issn
1875-5453journal_volume
2pub_type
杂志文章,评审abstract::In vitro models of the liver using isolated primary hepatocytes have been used as screens for measuring the metabolism, toxicity and efficacy of xenobiotics, for studying hepatocyte proliferation, and as bioartificial liver support systems. Yet, primary isolated hepatocytes rapidly lose liver specific functions when m...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:10.2174/138920005774832632
更新日期:2005-12-01 00:00:00
abstract::Cytochromes P450 of the liver are involved in maintenance of lipid homeostasis (cholesterol, vitamin D, oxysterol and bile acid metabolism) and in detoxification processes of endogenous compounds (i. e. bile acids) and xenochemicals (drugs). This review describes the roles of various CYPs in production of cholesterol ...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920011795016890
更新日期:2011-02-01 00:00:00
abstract::Maternal antenatal therapy with glucocorticoids (GC) is routinely used to prevent lung immaturity. The potential harmful effects on other organs, including in particular the central nervous system (CNS), are still controversial. In the present review we aimed to investigate: i) the beneficial and detrimental effects o...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:
更新日期:2013-02-01 00:00:00
abstract::Work on human immortalized cell lines is not considered research on human subjects, but does involve biohazards. It has also been estimated that about 80% of human cell lines are the kind of cells that they are expected. Cells that are cultured directly from a subject are referred to as primary cells. Clonetics is the...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:10.2174/138920008783884768
更新日期:2008-03-01 00:00:00
abstract::New chemical entities are routinely screened in vitro and in vivo for their ability to induce cytochrome P450s (CYP), other drug-metabolizing enzymes and possibly transporters in an attempt to more accurately predict clinical parameters such as drug-drug interactions and clearance in humans. Some of these potential th...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200033489352
更新日期:2003-10-01 00:00:00
abstract:OBJECTIVES:Induction or inhibition of cytochrome P450 (CYP) enzyme activities, enzymes that activate or detoxify xenobiotics, is one mechanism by which vegetables may alter cancer risk. As the effect of food on CYP enzyme activities have not been studied in the Jordanian population, we examined the effect of supplement...
journal_title:Current drug metabolism
pub_type: 临床试验,杂志文章
doi:10.2174/138920007779315080
更新日期:2007-01-01 00:00:00
abstract::With the recent advancement in nanoscience and nanotechnology, there is a growing demand for assessment of the toxicological effects of nano materials to humans and other biological systems. And a predictive toxicology approach that uses in vitro screening assays in conjunction with in vivo study results are widely em...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200216666151015113720
更新日期:2015-01-01 00:00:00
abstract::It has long been suggested that some of the neuropharmacological, neurochemical and behavioural effects of ethanol are mediated by its first metabolite, acetaldehyde. In spite of the well documented psychoactivity of acetaldehyde, the precise role of this compound in alcohol abuse remains a matter of intense debate am...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920007782109797
更新日期:2007-10-01 00:00:00
abstract::The present study was designed to investigate the hepatic disposition of the prodrug AM365 and the generated antiviral guanosine analogue, AM188 in the isolated perfused rat liver (IPL). The livers of rats (n=12) were isolated and perfused with Krebs-Henseleit pH 7.4 buffer to which AM365 was added as a bolus to achie...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:10.2174/138920005774330611
更新日期:2005-10-01 00:00:00
abstract::This review provides a vista of the current opportunities and remaining challenges in the area of in vitro-in vivo extrapolation, with particular emphasis on drug binding terms in predictive models, which has been the source of much controversy. Although the importance of fu(inc) (fraction unbound in in vitro incubati...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920006776359266
更新日期:2006-04-01 00:00:00
abstract::Evaluation and optimization of drug metabolism and pharmacokinetic data plays an important role in drug discovery and development and several reliable in vitro ADME models are available. Recently higher throughput in vitro ADME screening facilities have been established in order to be able to evaluate an appreciable f...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920008786485092
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:Thiopurine antimetabolites are important agents for the treatment of severe diseases, such as acute lymphoblastic leukemia and inflammatory bowel disease. Their pharmacological actions depend on biotransformation into active thioguanine-nucleotides; intracellular metabolism is mediated by enzymes of the salv...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200217666160303104153
更新日期:2016-01-01 00:00:00
abstract::This paper reviews the empirical methods of quantitative microdialysis that have been used to interpret the results obtained from pharmacokinetic studies. The concept of extraction efficiency or recovery and the properties of recovery in vivo (variation with flow rate, time dependency and influence of the mode of admi...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200053586109
更新日期:2005-04-01 00:00:00
abstract::This review introduces the Noscapine, which is being used as an antitussive drug for a long time has been recently discovered as a novel tubulin-binding, anti-angiogenic anticancer drug that causes cell cycle arrest and induces apoptosis in cancer cells both in vitro as well as in vivo. Noscapine is a multifunctional ...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200211314030010
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Kidney dysfunction resulting from various drugs is an important issue during the drug development process. Traditional in vivo animal experiments are limited with respect to evaluating drug efficacy and nephrotoxicity due to discrepancies in drug pharmacokinetics and pharmacodynamics between humans and anima...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200219666180309101844
更新日期:2018-01-01 00:00:00
abstract::This review provides an overview of the in vitro methods currently used in studies of intestinal drug metabolism and active efflux with a special emphasis on the efflux- metabolism interplay. These methods include e.g. expressed enzymes or efflux transporters, fractionated intestinal cells, cell lines, primary cells, ...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:
更新日期:2013-01-01 00:00:00
abstract::Graphene and its modified nano-composites have gained much attention in recent times in cancer therapy as nanotheranostics due to low production cost, ease in synthesis and physicochemical properties (ultra-large surface area with planar structure and π-π conjugation with the unsaturated and aromatic drugs/biomolecule...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200215666141125120633
更新日期:2015-01-01 00:00:00
abstract::The nature and level of systemic exposure to the active herbal constituents will profoundly affect their effects at action sites, which is fundamental in understanding their roles in the overall beneficial effects of a herbal medicine. The objective of this study is to gain a full picture of the systemic exposure to v...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:10.2174/1389200211209050494
更新日期:2012-06-01 00:00:00
abstract::Pharmacokinetic studies conducted in patients with CRF demonstrate that the nonrenal clearance of multiple drugs is reduced. Although the mechanism by which this occurs is unclear, several studies have shown that CRF affects the metabolism of drugs by inhibiting key enzymatic systems in the liver, intestine and kidney...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200033489532
更新日期:2003-04-01 00:00:00
abstract::Metabolism of xenobiotics is often seen as an exclusive function of the liver, but some current findings support the notion that the lungs, kidneys and intestine may contribute considerably. After the establishment of the use of liver slices as a useful in vitro model to study metabolism and toxicity of xenobiotics, t...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200023338071
更新日期:2002-02-01 00:00:00
abstract::Bioavailability of orally administered drugs can be influenced by a number of factors including release from the formulation, dissolution, stability in the gastrointestinal (GI) environment, permeability through the gut wall and first-pass gut wall and hepatic metabolism. Although there are various enzymes in the gut ...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:10.2174/138920010794328913
更新日期:2010-11-01 00:00:00
abstract::Advances in high-throughput technologies to measure genome-scale changes of genes, proteins, and other biomolecular components ('omics') in complex biological systems have dramatically revolutionized biomedical research. However, the benefits of utilizing omics information in drug development have not yet been fully r...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920008786927802
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:Methotrexate (MTX) is a folate analogue with high therapeutic efficiency in the treatment of cancers and autoimmune diseases. The efficacy and toxicity of MTX may be altered by genetic polymorphisms in genes involved in MTX metabolic pathway. Personalized pharmacotherapy based on gene polymorphisms enables a...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200219666171227201047
更新日期:2018-01-01 00:00:00
abstract::This paper reviews the metabolism of new designer drugs of abuse that have emerged on the black market during the last years and is an update of a review published in 2005. The presented review contains data concerning the so-called 2C compounds (phenethylamine type) such as 4-bromo-2,5-dimethoxy-beta-phenethylamine (...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920010791526042
更新日期:2010-06-01 00:00:00
abstract::Superparamagnetic iron oxide nanoparticles (SPIONs) have attracted a lot of interest due to their widespread diagnostic and therapeutic applications in neuro-oncology. Functinalization of the particles surface with targeting molecules that recognize tumor receptors might be exploited for the specific brain tumor targe...
journal_title:Current drug metabolism
pub_type: 杂志文章
doi:
更新日期:2016-06-15 00:00:00
abstract::Cytochrome P450s (P450 or CYPs) comprise a superfamily of enzymes that catalyze the oxidation of a wide variety of xenobiotic chemicals. Although most of P450 inhibitors decrease the metabolic activities mediated by the corresponding P450 forms, unexpected phenomena, which are called as activation or heterotropic coop...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920008784746364
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:The prolonged circulation time of nanoparticles in the blood is a prerequisite to realize a controlled and targeted (passive or active targeting) release of the encapsulated gene/drug at the desired site of action. The most popular method to mask or camouflage nanoparticles is the adsorbed, grafted or conjug...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200219666171207120643
更新日期:2018-01-01 00:00:00
abstract::We present a review of recent investigations of anticancer drug bexarotene in this article. As one of the novel synthetic analogs of retinoids, bexarotene selectively binds to and activates the retinoid X receptor (RXRs) subfamilies, exerting a prophylactic and therapeutic effect on a large series of tumors in vitro a...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920021702160114121706
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Colorectal cancer is the third important cause of cancer-associated deaths across the world. Hence, there is an urgent need for understanding the complete mechanism associated with colorectal cancer, which in turn can be utilized toward early detection as well as the treatment of colorectal cancer in humans....
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/1389200220666191007153238
更新日期:2019-01-01 00:00:00
abstract::Toxicogenomics is defined as an integration of genomics (transcriptomics, proteomics and metabolomics) and toxicology. It is a scientific field that studies how the genome is involved in responses to environmental stressors and toxicants. It combines studies of mRNA expression, cell and tissue-wide protein expression ...
journal_title:Current drug metabolism
pub_type: 杂志文章,评审
doi:10.2174/138920008783884696
更新日期:2008-03-01 00:00:00