Abstract:
:The purpose of this research is to develop ligand-targeted plasmid based gene delivery systems for gene transfer to tumor endothelium. Cell adhesion assays were used to test the peptide inhibition of human endothelial cell adsorption to vitronectin-treated tissue culture plates. A series of RGD containing peptides were tested in linear form and with one and two disulfide bonds. The linear and two disulfide bond peptides yielded similar IC50 (approximately 1 x 10(-7) M). Substitution of two methionines for cysteines yielded a single disulfide bond that increased the IC50 by 10-fold. The single and double disulfide peptides were derivatized to N-succinyl-dioleoylphopsphatidylethanolamine and incorporated into 100 nm liposomes radiolabeled with H-cholesterylhexadecylether. Liposome uptake by human umbilical vein endothelial cells was tested as a function of lipopeptide surface density. Increase in membrane surface density from 5 to 20mol% increased human umbilical derived endothelial cell (HUVEC) uptake of the liposomes for both the single and double disulfide peptides. Liposome uptake by HUVECs was 3-fold greater for the double disulfide compared to the single disulfide. The single and double disulfide lipopeptides were then tested for gene transfer to HUVECs using DOTMA:Cholesterol cationic liposomes. The polyplexes were formed by rapidly mixing plasmid DNA with DOTMA:CHOL liposomes at a 3:1 charge ratio in 2% ethanol, 10% lactose. The ethanol was removed by lyophilization and upon rehydration, the lipoplexes had a mean diameter of approximately 100nm. HUVEC transfection studies showed that increasing the mol% of the single disulfide RGD lipopeptide to 20mol% increased gene transfer by 10-fold. This increase in transfection could be reduced to that obtained in the absence of lipopeptide by co-incubating the HUVECs with a 100-fold excess of the single disulfide RGD peptide, thus demonstrating lipopeptide mediated gene transfer to endothelial cells.
journal_name
J Drug Targetjournal_title
Journal of drug targetingauthors
Anwer K,Kao G,Rolland A,Driessen WH,Sullivan SMdoi
10.1080/10611860410001724468keywords:
subject
Has Abstractpub_date
2004-05-01 00:00:00pages
215-21issue
4eissn
1061-186Xissn
1029-2330journal_volume
12pub_type
杂志文章abstract::In this review, we emphasize the efforts on the development of radiolabeled nanoparticles (NPs) for cancer treatment, i.e. theranostic tools based on nanotechnology and nuclear medicine. Currently, radionuclide therapy remains to be an important treatment option. The ionizing radiation from radionuclides (not provided...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.3109/1061186X.2014.988216
更新日期:2015-04-01 00:00:00
abstract::Rabies virus glycoprotein (RVG), a 505 amino acid type-1 glycoprotein, is responsible for the neurotrophic nature of the rabies virus infection. Despite varying reports in the literature as to which receptor is ultimately responsible for interaction of RVG with the nervous system, there is a strong argument for major ...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.1080/1061186X.2016.1223676
更新日期:2017-06-01 00:00:00
abstract::Poly(D,L-lactic-co-glycolic) acid (PLGA) microspheres containing plasmid DNA encoding the firefly luciferase gene were prepared using the water-in-oil-in-water (w/o/w) double emulsion and solvent evaporation method. In this study, we investigated the effects of three process parameters on DNA microencapsulation: (1) e...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869909085514
更新日期:1999-12-01 00:00:00
abstract::Influenza, mainly caused by influenza virus, is becoming one of the major concerns in the world. Limitation in vaccines necessitates the urgent development of new therapeutic options against this virus. In the present study, we designed small interfering RNA (siRNA) targeting overlapping gene of PB1 and PB1-F2 gene of...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860802473048
更新日期:2009-02-01 00:00:00
abstract::The human body has adapted to defend against the aggressive biological or chemical agents. As a result, the defence mechanisms of the human body became barriers for the drug delivery. Theoretically, any problem that prevents a drug from reaching its site of action is considered to be a barrier to drug delivery. The ai...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611860903398099
更新日期:2010-05-01 00:00:00
abstract::Local tissue toxicity, systemic toxicity and platinum pharmacokinetics were evaluated in 6 normal healthy beagle dogs injected subcutaneously with two formulations of a polylactide biodegradable polymer (Atrigel) system containing cisplatin. Dogs were injected 4 times at 30 day intervals at platinum dosages of 70, 105...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869808997866
更新日期:1998-01-01 00:00:00
abstract::A simple method for the separation of polyalkylcyanoacrylate nanoparticles was developed using polyisohexylcyanoacrylate (PIHCA) as a model. Fluorescein isothiocyanate dextran 70 was used to label the nanoparticles. Ultracentrifugation onto a performed sucrose gradient allowed the easy elimination of the dextran and o...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869509059216
更新日期:1995-01-01 00:00:00
abstract::The human papillomavirus type-16 (HPV-16) E7 protein is considered a major viral oncoprotein involved in cervical cancer (CxCa) and a potential candidate for the development of a vaccine against this neoplasia. Here, two lactic acid bacteria (the model one Lactococcus lactis and a probiotic one Lactobacillus plantarum...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860400024219
更新日期:2005-02-01 00:00:00
abstract::We have developed a new method to evaluate the transfer of macromolecular drugs to intrapulmonary lymph nodes in rats after intrapulmonary administration. By using this method, we observed that the transfer of fluorescein isothiocyanate dextrans (FDs) to the intrapulmonary lymph nodes was markedly higher than that to ...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611869509015955
更新日期:1995-01-01 00:00:00
abstract::Intracellular compartmentalisation is a significant barrier to the successful nucleocytosolic delivery of biologics. The endocytic system has been shown to be responsible for compartmentalisation, providing an entry point, and trigger(s) for the activation of drug delivery systems. Consequently, many of the technologi...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186X.2017.1358725
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Peptide antibiotics as new therapeutic agents are becoming a popular option to investigate due to their broad bacterial target selectivity and limited resistance problems. Although attractive, these new drug candidates have several limitations including low potency and delivery issues which face all peptid...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860600907767
更新日期:2006-11-01 00:00:00
abstract::The aim of this study was to evaluate the pharmacokinetics (PK), tissue distribution, and the specific drug targeting of cefpiramide sodium-loaded liposomes (CPMS-Lips) compared with cefpiramide sodium solution (CPMS-Sol) in mice. CPMS-Lips were prepared by reverse phase evaporation method. In the PK and biodistributi...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611861003667607
更新日期:2011-01-01 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:BACKGROUND:Treatment of late stage cancers has proven to be a very difficult task. Targeted therapy and combinatory drug administration may be the solution. PURPOSE:The study was performed to evaluate the therapeutic efficacy of PEG-PE micelles, co-loaded with curcumin (CUR) and doxorubicin (DOX), and targeted with an...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2013.840639
更新日期:2013-12-01 00:00:00
abstract::In order to facilitate the intracellular delivery of macromolecules, Pep-1 peptide-modified liposomal (Pep1-Lipo) nanocarriers were designed and examined for their in vitro cell translocation capability. Pep-1 peptides were coupled via thiol-maleimide linkage to small unilamellar vesicles composed of phosphatidylcholi...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2010.511226
更新日期:2011-08-01 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::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 targeted delivery system for inflammatory bowel diseases, chitosan-Ca-alginate microparticles efficiently loaded with budesonide (BDS), were designed using one-step spray-drying process. They were eudragit-coated and examined for in vivo efficacy. Experimental colitis was induced by rectal instillation of 2,4,6-trin...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/10611860903161310
更新日期:2009-12-01 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::Organic anion-transporting polypeptides (OATPs) encoded by the SLCO genes constitute an important transporter superfamily that mediates transmembrane transport of various clinical drugs and endogenous nutrients. Eleven human OATPs with different transport functions are expressed in various tissues. Bile acids, steroid...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.3109/1061186X.2013.832767
更新日期:2014-01-01 00:00:00
abstract::In vitro transfection efficiency of a plasmid DNA for rat gastric mucosal (RGM)-1 cells was enhanced by ultrasound (US) irradiation. Ethylenediamine was introduced to the carboxyl groups of gelatin to prepare a cationized gelatin as the vector of plasmid DNA encoding luciferase. An electrophoresis experiment revealed ...
journal_title:Journal of drug targeting
pub_type: 杂志文章,收录出版
doi:10.1080/10611860290022624
更新日期:2002-05-01 00:00:00
abstract::Cancer is one of the most common diseases all over the world; many people suffer from diverse types of cancer. However, currently there is no exact cure or therapy developed for cancer. On the other hand, nanoparticles are defined as microscopic particles that have dimensions less than 100 nm and they are known for th...
journal_title:Journal of drug targeting
pub_type: 杂志文章,评审
doi:10.1080/1061186X.2018.1527338
更新日期:2019-08-01 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::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::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
abstract::Notch pathway was found to be activated in most glioblastomas (GBMs), underlining the importance of Notch in formation and recurrence of GBM. In this study, a Notch inhibitory peptide, dominant negative MAML (dnMAML), was conjugated to elastin-like polypeptide (ELP) for tumor targeted delivery. ELP is a thermally resp...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186X.2017.1289537
更新日期:2017-07-01 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::Background: Sonodynamic therapy (SDT) has emerged as an alternative to the traditional treatments of cancer. However, the oxygen consumption induced by SDT and glucose oxidase (GOx) mediated starvation therapy would worsen the hypoxic tumor environment, which further impeded therapeutic efficacy. Purpose: To develop a...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/1061186X.2019.1641507
更新日期:2020-02-01 00:00:00
abstract::The purpose of the study was to develop the liposomal formulations of TFu for oral and intravenous (i.v.) administration, clarify the biodistribution characteristics and in vivo pharmacokinetic behaviors of TFu-loaded liposomes. Four TFu-loaded liposomes of different sizes were prepared and characterized. The pharmaco...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.1080/10611860801927598
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Nanoparticles with controlled physical properties have been widely used for controlled release applications. In addition to shape, the anisotropic nature of the particles can be an important design criterion to ensure selective surface modification or independent release of combinations of drugs. PURPOSE:El...
journal_title:Journal of drug targeting
pub_type: 杂志文章
doi:10.3109/1061186X.2015.1076428
更新日期:2015-01-01 00:00:00