Search results for " drug carriers"

showing 10 items of 11 documents

Interleukin 3- receptor targeted exosomes inhibit in vitro and in vivo chronic myelogenous Leukemia cell growth

2017

Despite Imatinib (IM), a selective inhibitor of Bcr-Abl, having led to improved prognosis in Chronic Myeloid Leukemia (CML) patients, acquired resistance and long-term adverse effects is still being encountered. There is, therefore, urgent need to develop alternative strategies to overcome drug resistance. According to the molecules expressed on their surface, exosomes can target specific cells. Exosomes can also be loaded with a variety of molecules, thereby acting as a vehicle for the delivery of therapeutic agents. In this study, we engineered HEK293T cells to express the exosomal protein Lamp2b, fused to a fragment of Interleukin 3 (IL3). The IL3 receptor (IL3-R) is overexpressed in CML…

0301 basic medicineMedicine (miscellaneous)PharmacologyEngineered exosomeExosomesInterleukin 3Antineoplastic AgentMiceHEK293 Cellhemic and lymphatic diseasesDrug CarrierPharmacology Toxicology and Pharmaceutics (miscellaneous)Drug CarriersChronic myeloid leukemiaMyeloid leukemiaChronic myeloid leukemia; Drug delivery; Drug resistance; Engineered exosomes; Interleukin 3; Animals; Antineoplastic Agents; Cell Line Tumor; Cell Proliferation; Disease Models Animal; Drug Carriers; Exosomes; HEK293 Cells; Heterografts; Humans; Imatinib Mesylate; Leukemia Myelogenous Chronic BCR-ABL Positive; Mice; Receptors Interleukin-3; Treatment Outcome3. Good healthTreatment OutcomeImatinib MesylateHeterograftsHeterograftResearch Papermedicine.drugHumanEngineered exosomesAntineoplastic Agents03 medical and health sciencesIn vivoCell Line TumorLeukemia Myelogenous Chronic BCR-ABL PositivemedicineAnimalsHumansneoplasmsInterleukin 3.Interleukin 3Cell Proliferationbusiness.industryAnimalImatinibmedicine.diseaseMicrovesiclesReceptors Interleukin-3ExosomeDisease Models AnimalHEK293 Cells030104 developmental biologyImatinib mesylateDrug resistanceCancer cellDrug deliverybusinessChronic myelogenous leukemia
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Gold nanostar–polymer hybrids for siRNA delivery: Polymer design towards colloidal stability and in vitro studies on breast cancer cells

2017

To overcome the low bioavailability of siRNA (small interfering RNA) and to improve their transfection efficiency, the use of non-viral delivery carriers is today a feasible approach to transform the discovery of these incredibly potent and versatile drugs into clinical practice. Polymer-modified gold nanoconstructs (AuNCs) are currently viewed as efficient and safe intracellular delivery carriers for siRNA, as they have the possibility to conjugate the ability to stably entrap and deliver siRNAs inside cells with the advantages of gold nanoparticles, which can act as theranostic agents and radiotherapy enhancers through laser-induced hyperthermia. In this study, AuNCs were prepared by coat…

3003siRNA deliverySmall interfering RNAPolymersMetal NanoparticlesPharmaceutical ScienceGold Colloid02 engineering and technologyPolyethylene Glycol01 natural sciencesPolyethylene GlycolsGold Colloidchemistry.chemical_compoundDrug Delivery SystemsMCF-7 CellDrug StabilityCoatingRNA Small InterferingPolymerDrug Carrierchemistry.chemical_classificationDrug CarriersTumorLipoic acidGold nanostarPolymer021001 nanoscience & nanotechnologyColloidal goldMCF-7 Cells0210 nano-technologyDrug carrierHydrophobic and Hydrophilic InteractionsBreast NeoplasmHumanBiological AvailabilityReproducibility of ResultBreast NeoplasmsNanotechnologyPolyethylene glycolengineering.materialSmall InterferingTransfection010402 general chemistryCell LineHydrophobic and Hydrophilic InteractionMetal NanoparticleCell Line TumorAmphiphileHumansGene SilencingParticle SizeGold nanostarsReproducibility of ResultsGold nanostars; Lipoic acid; MCF-7; PEG; PHEA; siRNA delivery; Biological Availability; Breast Neoplasms; Cell Line; Tumor; Drug Carriers; Drug Delivery Systems; Drug Stability; Gene Silencing; Gold; Gold Colloid; Humans; Hydrophobic and Hydrophilic Interactions; MCF-7 Cells; Metal Nanoparticles; Particle Size; Polyethylene Glycols; Polymers; RNA; Small Interfering; Reproducibility of Results; Transfection; 3003PHEAPEG0104 chemical scienceschemistrySettore CHIM/09 - Farmaceutico Tecnologico ApplicativoengineeringRNAGoldMCF-7Drug Delivery SystemInternational Journal of Pharmaceutics
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Acute polymyositis during treatment of acute hepatitis C with pegylated interferon alpha-2b.

2005

Hepatitis C virus is not cleared after primary infection in 50-85% of subjects exposed to hepatitis C virus. Anti-viral treatment during the early phase of infection significantly enhances the likelihood of a sustained clearance of hepatitis C virus. Although, a variety of autoimmune-related side effects have been observed during interferon therapy for chronic hepatitis, immuno-mediated adverse reactions have not been reported during treatment of acute hepatitis C. We describe the case of a patient who developed acute hepatitis C virus infection and, while receiving pegylated interferon alpha-2b monotherapy, developed a severe polymyositis. This case illustrates the potential risk of autoim…

MaleHepatitis C virusHepacivirusAcute hepatitis CAlpha interferonAutoimmunityHepacivirusInterferon alpha-2medicine.disease_causeIFNPolymyositisPolyethylene GlycolAntiviral AgentsVirusPolyethylene GlycolsPegylated interferonInterferonmedicineHumansDrug CarrierCreatine KinasePolymyositiAntiviral AgentDrug CarriersHepaciviruHepatologybiologybusiness.industryGastroenterologyInterferon-alphaHepatitis CRecombinant ProteinMiddle Agedmedicine.diseasebiology.organism_classificationHepatitis CRecombinant ProteinsAcute hepatitis C; Hepatitis C virus; IFN; Polymyositis; Acute Disease; Antiviral Agents; Autoimmunity; Creatine Kinase; Drug Carriers; Hepacivirus; Hepatitis C; Humans; Interferon-alpha; Male; Middle Aged; Polyethylene Glycols; Polymyositis; RNA Viral; Recombinant Proteins; GastroenterologyPolymyositisImmunologyAcute DiseaseRNA ViralbusinessHepatitis C virumedicine.drugHumanDigestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver
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Biocompatible micelles based on squalene portions linked to pegylated polyaspartamide as potential colloidal drug carriers

2011

Materials scienceBiomedical EngineeringPharmaceutical ScienceMedicine (miscellaneous)BioengineeringBiocompatible materialMicelleSqualenechemistry.chemical_compoundColloidchemistrySettore CHIM/09 - Farmaceutico Tecnologico ApplicativoOrganic chemistryDrug carrieramphiphilic copolymers drug carriers micelles αβ-poly(N-2-hydroxyethyl)-DLaspartamidesqualene in vitro uptakeBiotechnology
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An a priori prediction model of response to peginterferon plus ribavirin dual therapy in naïve patients with genotype 1 chronic hepatitis C.

2014

none 29 no Background: Aim was to select naïve patients with genotype 1 chronic hepatitis C having a high probability of response to Peg-interferon. +. ribavirin therapy. Methods: In 1073 patients (derivation cohort), predictors of rapid and sustained virological response were identified by logistic analysis; regression coefficients were used to generate prediction models for sustained virological response. Probabilities at baseline and treatment week 4 were utilized to develop a decision rule to select patients with high likelihood of response. The model was then validated in 423 patients (validation cohort). Results: In the derivation cohort, 257 achieved rapid virological response and 8…

OncologyMaleHepacivirusPredictive Value of Testchronic hepatitis C; prediction model of response; peginterferon plus ribavirin dual therapyHepacivirusPolyethylene GlycolPolyethylene Glycolschemistry.chemical_compoundGenotypeViralChronicRapid virological responseDrug CarrierChronic hepatitisSettore MED/12 - GastroenterologiaDrug CarriersbiologyGastroenterologyRecombinant ProteinMiddle AgedViral LoadPrognosisHepatitis CRecombinant ProteinsHCV infectionTreatment OutcomePredictive value of testsCombinationRNA ViralDrug Therapy CombinationFemaleChronic hepatitis; HCV infection; Peg-interferon and ribavirin treatment; Predictors of sustained virological response rapid virological response; Adult; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Female; Genotype; Hepacivirus; Hepatitis C Chronic; Humans; Interferon-alpha; Male; Middle Aged; Polyethylene Glycols; Predictive Value of Tests; Prognosis; RNA Viral; Real-Time Polymerase Chain Reaction; Recombinant Proteins; Ribavirin; Treatment Outcome; Viral Load; Hepatology; GastroenterologyViral loadHumanAdultmedicine.medical_specialtyGenotypePrognosiAlpha interferonPredictors of sustained virological response rapid virological responseReal-Time Polymerase Chain ReactionAntiviral AgentsDrug TherapyPredictive Value of TestsInternal medicinePredictors of sustained virological responseLinear regressionRibavirinmedicinechronic hepatitis CHumansAntiviral AgentHCV infection; Predictors of sustained virological response Rapid virological response; Peg-interferon and ribavirin treatment; Chronic hepatitisHepaciviruHepatologybusiness.industryRibavirinInterferon-alphaHepatologyHepatitis C Chronicbiology.organism_classificationchemistryImmunologyChronic hepatitiRNAprediction model of responsepeginterferon plus ribavirin dual therapybusinessPeg-interferon and ribavirin treatmentDigestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver
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Triple therapy with first-generation Protease Inhibitors for patients with genotype 1 chronic hepatitis C: Recommendations of the Italian Association…

2013

AbstractThe first-generation Protease Inhibitors Boceprevir and Telaprevir administered in triple therapy regimens with Peg-interferon alpha and Ribavirin have been proven effective in increasing the rate of Sustained Virological Response in both naive and treatment-experienced patients with chronic genotype-1 hepatitis C. However, at the individual level, the therapeutic advantage of triple therapy is highly variable and results from the combination of multiple factors related to the characteristics of patient, viral status and liver disease.The recommendations presented are promoted by the Italian Association for the Study of the Liver, with the aim to help the physician in the decision-m…

Oncologymedicine.medical_specialtyProlinePegylated-interferonAlpha interferonHepacivirusPharmacologyAntiviral AgentsTelaprevirTelaprevirPolyethylene GlycolsHCV THERAPYchemistry.chemical_compoundLiver diseaseDrug TherapyPegylated interferonBoceprevirInternal medicineRibavirinmedicineHumansProtease InhibitorsChronicBoceprevir; Cirrhosis; Hepatitis C; Pegylated-interferon; Ribavirin; Telaprevir; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Hepacivirus; Hepatitis C Chronic; Humans; Interferon-alpha; Oligopeptides; Polyethylene Glycols; Proline; Protease Inhibitors; Ribavirin; Gastroenterology; HepatologyBoceprevirDrug CarriersHepatologybusiness.industryRibavirinGastroenterologyInterferon-alphaHepatitis CHepatologyHepatitis C Chronicmedicine.diseaseHepatitis CCirrhosischemistryCombinationDrug Therapy CombinationbusinessOligopeptidesmedicine.drug
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Pegylated interferon α plus ribavirin for the treatment of chronic hepatitis C: A multicentre independent study supported by the Italian Drug Agency

2014

a b s t r a c t Background: Data on the efficacy of Peg-interferon/ribavirin therapy for chronic hepatitis C are mostly derived from treatment of selected patients enrolled in clinical trials. This study aimed to assess the effectiveness of Peg-interferon/ribavirin therapy in “real world” chronic hepatitis C patients in Italy. Methods: Independent observational multicentre study including consecutive patients receiving Peginterferon/ribavirin in the 18 months before (retrospective phase) and after (prospective phase) the start of the study. Results: 4176 patients were eligible. The final study population consisted of 2051 patients in the retrospective and 2073 in the prospective phase. Sust…

RegistrieMaleCirrhosismedicine.disease_causePolyethylene GlycolGastroenterologyPolyethylene Glycolschemistry.chemical_compoundHepatitis VirusesHepatitis ViruseProspective StudiesViralRegistriesChronicProspective cohort studyDrug CarrierDrug CarriersSettore MED/12 - GastroenterologiaMedicine (all)GastroenterologyRecombinant ProteinMiddle AgedHepatitis CRecombinant ProteinsTreatment OutcomeItalyCombinationRNA ViralPopulation studyDrug Therapy CombinationFemaleHumanmedicine.medical_specialtyGenotypeHepatitis C virusAlpha interferonRibavirin; Sustained virological response (SVR); TreatmentAntiviral AgentsFollow-Up StudieRibavirin; Sustained virological response (SVR); Treatment; Hepatology; GastroenterologyDrug TherapyInternal medicineRibavirinmedicineHumansAntiviral AgentHepatologybusiness.industryRibavirinInterferon-alphaHCV therapyHepatitis C ChronicHepatologymedicine.diseaseClinical trialTreatmentProspective StudiechemistryImmunologyRNARibavirin; Sustained virological response (SVR); Treatment; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Female; Follow-Up Studies; Genotype; Hepatitis C Chronic; Hepatitis Viruses; Humans; Interferon-alpha; Italy; Male; Middle Aged; Polyethylene Glycols; Prospective Studies; RNA Viral; Recombinant Proteins; Ribavirin; Treatment Outcome; RegistriesbusinessRibavirin; Sustained virological response (SVR); Treatment; Antiviral Agents; Drug Carriers; Drug Therapy Combination; Female; Follow-Up Studies; Genotype; Hepatitis C Chronic; Hepatitis Viruses; Humans; Interferon-alpha; Italy; Male; Middle Aged; Polyethylene Glycols; Prospective Studies; RNA Viral; Recombinant Proteins; Ribavirin; Treatment Outcome; Registries; Gastroenterology; Hepatology; Medicine (all)Follow-Up StudiesSustained virological response (SVR)
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NOVEL AMPHIPHILIC COPOLYMERS BASED ON POLYASPARTAMIDE GRAFT WITH SQUALENE RESIDUES TO OBTAIN MICELLES AS COLLOIDAL DRUG CARRIERS.

2009

Settore CHIM/09 - Farmaceutico Tecnologico ApplicativoPHEA SQUALENE MICELLES DRUG CARRIERS.
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PREPARATION AND CHARACTERIZATION OF CURCUMIN-LOADED LIPID NANOPARTICLES WITH IMPROVED ANTI-CANCER THERAPEUTIC EFFICACY

2011

Settore CHIM/09 - Farmaceutico Tecnologico ApplicativoSOLID LIPID NANOPARTICLES CURCUMIN COLLOIDAL DRUG CARRIERS
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Synthetic/ECM-inspired hybrid platform for hollow microcarriers with ROS-triggered nanoporation hallmarks

2017

Reactive oxygen species (ROS) are key pathological signals expressed in inflammatory diseases such as cancer, ischemic conditions and atherosclerosis. An ideal drug delivery system should not only be responsive to these signals but also should not elicit an unfavourable host response. This study presents an innovative platform for drug delivery where a natural/synthetic composite system composed of collagen type I and a synthesized polythioether, ensures a dual stimuli-responsive behaviour. Collagen type I is an extracellular matrix constituent protein, responsive to matrix metalloproteinases (MMP) cleavage per se. Polythioethers are stable synthetic polymers characterized by the presence o…

biomedical applicationsPathologyresponsivenessPolymersNanoparticlecardiomyocytes02 engineering and technologyMatrix metalloproteinaseMicroscopy Atomic Force01 natural sciencesreleaseHollow spheresExtracellular matrixDrug Delivery Systemsreactive oxygenCytotoxicitynanomaterialsdegradationchemistry.chemical_classificationDrug CarriersMicroscopyMultidisciplinaryIschemic conditionsQRAtomic ForcePolymerStimuli-responsive021001 nanoscience & nanotechnologyMicrospheresDrug deliveryMedicineROS (Reactive Oxygen Species) inflamed tissue stimuli-responsive biomaterials ischemic conditions hollow spheres polysulfides collagenCollagenhypoxia-reoxygenationdelivery0210 nano-technologyAnimals; Cell Line; Drug Carriers; Drug Delivery Systems; Matrix Metalloproteinases; Microscopy Atomic Force; Microspheres; Polymers; Rats; Reactive Oxygen Speciesmedicine.medical_specialtyROS (Reactive Oxygen Species)ScienceInflamed tissue010402 general chemistryArticleCell LineBiomaterialsPolysulfidesmedicineAnimalsReactive oxygen speciesMicrocarrierMatrix Metalloproteinases0104 chemical sciencesRatschemistrySettore CHIM/09 - Farmaceutico Tecnologico ApplicativoBiophysicsnanoparticlesReactive Oxygen Species
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