University of California

Children's Hospital Los Angeles

Nanovalent Pharmaceuticals, Inc.

Other

Jon O Nagy

Wayne R Spevak

Robert F Bargatze

Hyung-Gyoo Kang

Falguni Dasgupta

Carolyn Ruth Bertozzi

Deborah H Charych

Tim Triche

Caroline Bertozzi

Jim E Cutler

Mark D Bednarski

Pati M Glee

John W Jutila

Timothy Triche

Sheetal Mitra

The invention relates to a novel drug delivery vehicle. Various embodiments of the invention provide a hybrid polymerized liposomal nanoparticle comprising both polymerizable lipids and non-polymerizable lipids. Therapeutic agents can be loaded into the polymerized liposomal nanoparticle and targeting agents can be conjugated to the surface of the polymerized liposomal nanoparticle. Also described in the invention are methods, compositions and kits that utilize the hybrid polymerized liposomal nanoparticle to treat disease conditions such as various cancers.

Targeted polymerized nanoparticles for cancer treatment

Provided herein are compositions and methods for treating cancer in a subject in need thereof. The methods include using hybrid polymerized liposomal nanoparticles comprising, both polymerizable lipids and non-polymerizable lipids. The nanoparticles further comprise targeting agents and therapeutic agents.

Compositions and methods for treating ewing sarcoma

The present invention relates to nanoparticle vaccines comprised of a carrier, particularly polymerized lipids, having multiple copies of an antigen or combinations of different antigens displayed on the carrier. Such antigen-displaying nanoparticles may also display a targeting molecule on its surface in order to direct it to a specific site or cell type to optimize a desired immune response. The present invention also relates to encapsulating an antigen or combinations of different antigens within such nanoparticles, with or without a targeting molecule displayed on its surface. The antigens used in this invention are effective to produce an immune response against a variety of pathological conditions.

Nanoparticle vaccines

This invention relates generally to the field of therapeutic compounds designed to interfere between the binding of ligands and their receptors on cell surface. More specifically, it provides products and methods for inhibiting cell migration and activation using lipid assemblies with surface recognition elements that are specific for the receptors involved in cell migration and activation.

Inhibition of cell-cell binding by lipid assemblies

A lipid bilayer with affinity to an analyte, which directly signals binding by a changes in the light absorption spectra. This novel assay means and method has special applications in the drug development and medical testing fields. Using a spectrometer, the system is easily automated, and a multiple well embodiment allows inexpensive screening and sequential testing. This invention also has applications in industry for feedstock and effluent monitoring.

Polymeric assay film for direct colorimetric detection

This invention provides compositions for inhibiting the binding between two cells, one expressing P- or L-selectin on the surface and the other expressing the corresponding ligand. A covalently crosslinked lipid composition is prepared having saccharides and acidic group on separate lipids. The composition is then interposed between the cells so as to inhibit binding. Inhibition can be achieved at an effective oligosaccharide concentration as low as 10,fold below that of the free saccharide. Since selectins are involved in recruiting cells to sites of injury, these composition scan be used to palliate certain inflammatory and immunological conditions.

Inhibition of selectin binding

This invention provides compositions for inhibiting the binding between two cells, one expressing P- or L-selectin on the surface and the other expressing the corresponding ligand. A covalently crosslinked lipid composition is prepared having saccharides and acidic group on separate lipids. The composition is then interposed between the cells so as to inhibit binding. Inhibition can be achieved at an effective oligosaccharide concentration as low as 10.sup.6 fold below that of the free saccharide. Since selectins are involved in recruiting cells to sites of injury, these composition scan be used to palliate certain inflammatory and immunological conditions.

This invention provides a system for inhibiting the binding between two cells, one expressing P- or L-selectin on the surface and the other expressing the corresponding ligand. A covalently crosslinked lipid composition is prepared having saccharides and acidic group on separate lipids. The composition is then interposed between the cells so as to inhibit binding. Inhibition can be achieved at an effective oligosaccharide concentration as low as 10.sup.6 fold below that of the free saccharide. Since selectins are involved in recruiting cells to sites of injury, this system can be used to palliate certain inflammatory and immunological conditions.

Compositions and methods for the inhibition and prevention of pathogenic infection and neoplastic disease are provided. The compositions include hybrid molecules having a binding moiety and an effector moiety joined by a linker region. When administered to a host, the binding moiety, such as a carbohydrate, attaches to a receptor, such as a conserved lectin receptor on the pathogen or neoplastic cell, and the effector moiety provides an invariant antigenic determinant for eliciting or modulating an immune response. The effector moiety may also be a drug or other compound which inhibits growth of a bound pathogen or cell. Compositions comprising the hybrid molecule in a suitable pharmaceutical carrier are also provided.

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Bozeman, MT, United States of America

Jon O Nagy