Abstract:
:N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers containing doxorubicin and galactosamine have been developed to target the hepatocyte galactose receptor with the aim of organ-specific chemotherapy of primary and metastatic liver disease. Previous biodistribution studies in rats and mice have used tyrosinamide incorporated into the copolymer structure to permit labelling with 125I, enabling quantification of polymer distribution by dissection analysis. Radiolabelling of this copolymer with 131I, a radionuclide suitable for gamma scintigraphy, and the imaging analysis of its biodistribution in mice are reported. The present studies are the first to confirm the feasibility of imaging HPMA copolymer biodistribution, and such gamma scintigraphy will be of great value for clinical pharmacokinetic studies with this compound. Gamma scintigraphy is virtually the only non-invasive method of assessing hepatic uptake of this and similar materials.
journal_name
J Drug Targetjournal_title
Journal of drug targetingauthors
Pimm MV,Perkins AC,Duncan R,Ulbrich Kdoi
10.3109/10611869308996068subject
Has Abstractpub_date
1993-01-01 00:00:00pages
125-31issue
2eissn
1061-186Xissn
1029-2330journal_volume
1pub_type
杂志文章abstract::The aim of this work was to formulate minoxidil loaded liposome and niosome formulations to improve skin drug delivery. Multilamellar liposomes were prepared using soy phosphatidylcholine at different purity degrees (Phospholipon 90, 90% purity, soy lecithin (SL), 75% purity) and cholesterol (Chol), whereas niosomes w...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600991993
更新日期:2007-02-01 00:00:00
abstract::Sulpiride (SUL), anti-dopaminergic drug, has a specific site for absorption located in the upper portion of the gastrointestinal tract hence, its oral delivery represents a challenge regarding SUL absorption and bioavailability. So, a gastro-retentive oral platform of SUL was developed to increase its gastric residenc...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186X.2019.1663526
更新日期:2020-04-01 00:00:00
abstract::A biophysical model was developed, using Ascaris suum as a model gastrointestinal nematode, to provide quantitative perspectives into the microenvironmental pH within the water-filled, porous, negatively charged cuticle matrix of gastrointestinal nematodes. The central features of the model include (a) the constant ra...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869409015888
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Synthesized dl-Nordihydroguaiaretic acid (dl-NGDA or "Nordy") can inhibit the growth of malignant human tumors, especially the tumor angiogenesis. However, its liposoluble nature limits its in vivo efficacy in the hydrosoluble circulation of human. PURPOSE:We tried to use the ultrasonic microbubble as the c...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2016.1144058
更新日期:2016-09-01 00:00:00
abstract::Biphenylylacetic acid (BPAA) was linked to the free hydroxyl group of 2,6-di-O-methyl-beta-Cyclodextrin (DM-beta-CyD) through an ester linkage to obtain the site specific release of the drug to the colon. The conjugate at 1:1 mole ratio was separated from the reaction mixture by semipreparative reverse-phase HPLC and ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860310001615965
更新日期:2003-05-01 00:00:00
abstract::Anionic, cationic, and neutral liposomes were constructed to contain IL-2 in order to evaluate their affinity to a cervical cancer cell line (INBL) and to determine whether they can present IL-2 on their external surface. When these liposomes were co-cultured with INBL, the anionic liposomes were the only ones found t...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860903012810
更新日期:2009-08-01 00:00:00
abstract::A higher encapsulation rate was obtained using the dehydration-rehydration method compared with the reverse-phase evaporation technique in negative multilamellar vesicles with amikacin (AMK) (45% versus 15%; P < 0.05) and teicoplanin (TCP) (34% versus 25%; P < 0.05). The addition of 250 mM sucrose to AMK- or TCP-conta...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869308996076
更新日期:1993-01-01 00:00:00
abstract::The effects of concentration, amperage and duration on the antidiuretic response induced by iontophoretic delivery of desmopressin acetate (DDAVP) were examined using a diabetes insipidus model in rats. A higher current density brought about a larger and longer antidiuretic response. Prolonged iontophoretic duration c...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869509015918
更新日期:1995-01-01 00:00:00
abstract::Highly lipophilic antitumor agent, palmitoyl rhizoxin (RS-1541), was incorporated into stable lipid emulsions about 100-1000nm in mean diameter consisting of triglyceride ODO and surfactant HCO-60. The pharmacokinetics of RS-1541 were studied after i.v. injection in mice, rats, rabbits, and dogs. Dog showed characteri...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869808997875
更新日期:1998-01-01 00:00:00
abstract::The phenomenal advances in pharmaceutical sciences over the last few decades have led to the development of new therapeutics like peptides, proteins, RNAs, DNAs and highly potent small molecules. Fruitful applications of these therapeutics have been challenged by several anatomical and physiological barriers that limi...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.1080/1061186X.2018.1437919
更新日期:2018-01-01 00:00:00
abstract::A general mathematical model involving partition coefficient, molecular weight and hydrogen bonding is used to correlate the structures and permeability of various organic compounds through the toad urinary bladder and human red blood cell (RBC) membranes. Log Per (permeability) is correlated with log Po/w (partition ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869609046268
更新日期:1996-01-01 00:00:00
abstract::Based on the organotropic characteristics of bile acids towards the liver and the intestine, two novel compounds of the Bamet family, containing at least one bile acid moiety bound to platinum(II), have been synthesized and their cytostatic effect compared to their ability to become accumulated in tumor cells of hepat...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186021000001841
更新日期:2002-08-01 00:00:00
abstract::Recent research into the complex and varied components of rheumatoid arthritis (RA) is leading to the development of more effective targets for pharmaceutical approach than even before. Current treatment of RA frequently includes the use of nonsteroidal anti-inflammatory drugs, such as Diclofenac sodium (DFNa) in spit...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860701725191
更新日期:2008-01-01 00:00:00
abstract::The purpose of this study is to develop novel intestinal-specific insulin delivery systems with pH-sensitive swelling and drug release properties. The glucose-6-acrylate-1,2,3,4-tetraacetate (GATA) monomer was prepared under mild conditions. Cubane-1,4-dicarboxylic acid linked to two 2-hydroxyethyl methacrylate groups...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860802438728
更新日期:2009-01-01 00:00:00
abstract::Considering limitations of conventional insulin therapies, the present study characterizes usefulness of novel mucoadhesive multivesicular liposomes as a mucoadhesive sustained release carrier of insulin via nasal and ocular routes, thus attempts to develop non-invasive carrier system for the controlled release of bio...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860701453653
更新日期:2007-07-01 00:00:00
abstract::Solid tumors such as breast cancer have historically provided many challenges to anti-cancer therapy. Therapeutic hurdles to drug penetration in solid tumors include heterogeneous vascular supply and high interstitial pressures within tumor tissue, particularly in necrotic zones, lower pH and presence of leaky vascula...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.1080/10611860600809112
更新日期:2006-06-01 00:00:00
abstract::A promising strategy to carry genetic material to brain cells either in vitro or in vivo is using the LDL receptor (LDLr) on blood-brain barrier. LDLr naturally help to low density lipoproteins (LDL(S)) transporting across the BBB by endocytosis. Here we present the idea of using the LDLr-mediated pathway for transpor...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860601148908
更新日期:2007-04-01 00:00:00
abstract:PURPOSE:An octreotide-conjugated polyamidoamine (PAMAM) dendrimer was synthesized and employed as nanocarriers of methotrexate (MTX), for targeting to the somatostatin receptors over-expressed tumor cells. METHODS:PAMAM-PEG-octreotide (PPO) and PAMAM-PEG (PPG) were synthesized and characterized. The cellular uptake of...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2013.879386
更新日期:2014-06-01 00:00:00
abstract::We hypothesized that immunoliposomes (ILs) constructed using Fab' from the humanized anti-EGFR monoclonal antibody, EMD72000, can provide efficient intracellular drug delivery in EGFR-overexpressing colorectal tumor cells.ILs were constructed modularly with various MAb fragments, including Fab' from EMD72000 (matuzuma...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600691049
更新日期:2006-05-01 00:00:00
abstract::An aqueous dispersion of self-organized phospholipid tubules has been utilized as the template for silica-deposited nanotubules (approximately 0.5 microm thick and >10 microm long) by a sol-gel method. The formation of the hybrid tubules was mechanistically investigated by controlled sol-gel reaction. The incorporatio...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860802295581
更新日期:2008-11-01 00:00:00
abstract:PURPOSE:To evaluate the internalization and subcellular fate of AS1411 aptamer (for glioma targeting) and TGN peptide (for blood-brain barrier targeting)-modified nanoparticles (AsTNPs), which was important for optimizing targeted delivery systems and realizing the potential toxicity to cells. METHODS:Organelles were ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2014.886038
更新日期:2014-06-01 00:00:00
abstract::Human epidermal growth factor receptor 2 (HER2) expression has been shown to be increased in several types of human tumours. In this study, for the imaging of HER2-related tumours, a modified RNA aptamer with HER2-specific targeting was labelled with (99m)Tc, by using hydrazino nicotinamide (HYNIC) as the chelator in ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2013.839688
更新日期:2014-02-01 00:00:00
abstract::The aim of the present study was to develop a polymeric delivery system for water-insoluble drug oridonin. Amphiphilic block copolymers, poly(epsilon-caprolactone)-poly(ethylene glycol)-poly (epsilon-caprolactone) (PCL-PEO-PCL), were synthesized by ring-opening polymerization of caprolactone initiated by the hydroxyl ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860802200938
更新日期:2008-07-01 00:00:00
abstract::In order to confirm the efficacy of ciprofloxacin (CPFX) incorporated into liposomes (CPFX-liposomes) for treatment of respiratory intracellular parasite infections, the influence of particle size on drug delivery to rat alveolar macrophages (AMs) following pulmonary administration of CPFX-liposomes was investigated. ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600834375
更新日期:2006-09-01 00:00:00
abstract::The objective of this study was to estimate the colon-specific delivery of [Asu1,7]-eel calcitonin (ECT) using chitosan capsules in rats. The intestinal absorption of ECT was evaluated by measuring the plasma calcium levels after oral administration of the chitosan capsules containing ECT and different combinations of...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600648494
更新日期:2006-04-01 00:00:00
abstract::The goal of this study was to develop a systemically non-toxic and stable circulation based passive targeting system for efficient anticancer treatment. Gelatin-doxorubicin (GD) and PEGylated gelatin-doxorubicin (PGD) nanoparticles were designed and their feasibilities as an anti-cancer drug were evaluated. The sizes ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600935701
更新日期:2006-12-01 00:00:00
abstract::Metal nanoparticles (NPs) may have the potential to overcome problems related to conventional chemotherapy. Metal NPs reported to play a beneficial and powerful role in cancer therapy providing better targeting, gene silencing and drug delivery. Functionalised metal NPs with targeting ligands offer a better control of...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186X.2017.1400553
更新日期:2018-09-01 00:00:00
abstract::The objective of this study is to develop and evaluate gastroretentive particulate delivery systems using Riboflavin-5'-monophosphate sodium salt dihydrate (RF5'PNa) as model drug. Poly(acrylic acid)-cysteine and chitosan-4-thiobuthylamidine were evaluated and compared as anionic and cationic polymers for gastroretent...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611860903483370
更新日期:2010-06-01 00:00:00
abstract::Dendrimers, spherical or quasi-spherical synthetic polymers in the nano-size range, have found useful applications as prospective carriers in drug and gene delivery. The investigation of dendrimer uptake by cells has been previously achieved by the incorporation of a fluorescent dye to the dendrimer either by chemical...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600834441
更新日期:2006-07-01 00:00:00
abstract::Targeting of anti-tumor drugs to the urinary bladder for the treatment of bladder carcinoma may be useful, since these agents generally have a low degree of urinary excretion and are highly toxic elsewhere in the body. The anti-tumor drug doxorubicin was coupled to the low-molecular weight protein lysozyme via the aci...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860290007568
更新日期:2002-02-01 00:00:00