摘要:
Liposome formulations for administration of a boronic acid compound are described. The liposomes are comprised of a phospholipid having two acyl chains with between 20-22 carbon atoms in each chain and a boronic acid compound entrapped in the liposomes. In a preferred embodiment, the boronic acid compound is in the form of a complex with meglumine.
摘要:
A liposome composition comprised of liposomes having a peptide boronic acid proteasome inhibitor compound entrapped in the liposomes is described. More specifically, liposomes having a compound of Formula I or II entrapped in the interior aqueous compartment are loaded with a peptide boronic acid compound, to form a boronate ester compound inside the liposomal aqueous compartment. In one embodiment, the liposomes have an outer coating of hydrophilic polymer chains and are used to treat a solid tumor in a subject.
摘要:
Formulations and methods for preparing a lyophilized composition comprising liposomes comprised of an unsaturated lipid and a hydrophobic drug associated with the liposome, and a cryoprotectant in a solution at a selected concentration. The phase transition temperature of the lipid is greater than the freezing point of the solution at the selected concentration.
摘要:
A method for administering a therapeutic or diagnostic agent to a subject is described. The method includes providing a suspension of liposomes comprised of one or more of vesicle-forming lipids selected from (i) a vesicle-forming lipid derivatized with a hydrophilic polymer and (ii) a neutral lipopolymer, said liposomes being associated with said therapeutic or diagnostic agent, forming an aerosol of said liposome suspension; and administering the aerosol to the subject by inhalation. The liposome formulation delivers intact liposomal particles to the respiratory tract of said subject to form a depot of therapeutic agent therein with no observable provocation of an immune response, as measured by neutrophil or macrophage cell count in the lung after administration.
摘要:
Short oligopeptides are provide which are capable of binding to the epidermal growth factor receptor on the surface of human tumor cells. Methods for using the peptides as targeting moieties in more complex compositions, such as conjugates of cytoxins, and/or structures, such as liposomal structures, for the purposes of drug delivery are also provided.
摘要:
Short oligopeptides are provide which are capable of binding to the epidermal growth factor receptor on the surface of human tumor cells. Methods for using the peptides as targeting moieties in more complex compositions, such as conjugates of cytoxins, and/or structures, such as liposomal structures, for the purposes of drug delivery are also provided.
摘要:
An immunoliposome composition targeted to the alpha-V-integrin subunit of integrin receptors comprised of ligand-targeted liposomes bearing at least one targeting-ligand derived from an antibody and having binding specificity for at least one integrin receptor comprising an alpha-V subunit including αvβ1, αvβ3 αvβ5, αvβ6, or αvβ8 integrin cell receptors is described. The antibody-derived targeting ligand may be a Fab′ fragment, a scFv, or a the like. Binding of the immunoliposome to αv-integrin expressing cells, preferably results in internalization of the immunoliposome for cytoplasmic delivery of a liposome-entrapped agent.
摘要:
An immunoliposome composition comprised of liposomes bearing a ligand for targeting to cells expressing a growth factor receptor, such as HER2, is described. Binding of the immunoliposome to HER2-expressing cells results in internalization of the immunoliposome for cytoplasmic delivery of an entrapped drug.