Functionalized nanospheres loaded with anti-angiogenic drugs: cellular uptake and angiosuppressive efficacy.

The objective of this study was to develop polymeric nanospheres (NPs) that are able to selectively target the activated vascular endothelium and to deliver co-encapsulated anti-angiogenic agents for improved treatment efficacy in inflammatory diseases with an angiogenic component. We evaluated a novel poly(d,l)-lactide (PLA)-based polymer, grafted with a synthetic ligand specific for selectin (PLA-g-SEL), for the preparation of functionalized NPs. The NPs were produced according to a double emulsion-solvent diffusion/evaporation method, allowing the co-encapsulation of hydrophilic and lipophilic drugs.

On the mechanism and dynamics of uptake and permeation of polyether-copolyester dendrimers across an in vitro blood-brain barrier model.

Dendrimers have emerged as a promising drug delivery system due to their well defined size, tailorability, and multifunctional nature. However, their application in brain delivery is relatively a new area of research. The present study was aimed at evaluating the uptake and permeation of polyether-copolyester (PEPE) dendrimers across the blood-brain barrier model and exploring the underlying mechanisms.

Characteristics and properties of nanospheres co-loaded with lipophilic and hydrophilic drug models.

The biphasic nature of polymeric nanospheres prepared by the double emulsion method was exploited to co-encapsulate lipophilic and hydrophilic molecules. All-trans retinoic acid (RA) was selected as a lipophilic drug model whereas calf thymus DNA was chosen as a water-soluble model. Simultaneous quantification of the loaded ingredients was achieved by a second derivative spectrophotometric technique.

Thermoreversible liposomal poloxamer gel for the delivery of paclitaxel: dose proportionality and hematological toxicity studies.

The currently existing treatment modalities of cancer suffer from a major drawback of systemic toxicity, which results from high systemic drug exposure. Delivery of chemotherapeutic agents by delivery systems that alleviate systemic side effects but at the same time provide therapeutic advantage by controlling tumor growth exists as a viable option. To achieve this objective, a thermo reversible poloxamer gel containing paclitaxel incorporated in liposomes was formulated at three dose loadings.